48VL

Performancet 14 SEER Single ---Packaged Air Conditioner

and Gas Furnace System with PuronR (R ---410A) Refrigerant
Single --- and Three ---Phase
1---1/2 to 5 Nominal Tons (Sizes 018---060)

Product Data
high tech composite base eliminates rust problems associated with
ground level applications.
Convertible duct configuration
Unit is designed for easy use in either downflow or horizontal
applications. Each unit is easily converted from horizontal to
downflow with the two standard duct covers.
Efficient operation High--efficiency design offers SEER
(Seasonal Energy Efficiency Ratios) of 14.0 to 14.3, 12.0 EER,
and AFUE (Annual Fuel Utilization Efficiency) ratings as high as
80.4%.
Energy--saving, direct spark ignition saves gas by operating only
when the room thermostat calls for heating. Standard units are
furnished with natural gas controls. A low--cost field installed kit
for propane conversion is available for all units.
48VLN units are dedicated Low NOx units designed for
California installations. These models meet the California
maximum oxides of nitrogen (NOx) emissions requirement of 40
nanograms/joule or less as shipped from the factory and MUST be
installed in California Air Quality Management Districts where a
Low NOx rule exists. Low NOx option is available on single phase
models only.
A99338
Durable, dependable components Compressors are designed
Fig. 1 -- Unit 48VL for high efficiency. Each compressor is hermetically sealed against
contamination to help promote longer life and dependable
operation. Each compressor also has vibration isolation to provide
Single--Packaged Products with Energy--Saving Features and quieter operation. All compressors have internal high pressure and
PuronR refrigerant. overcurrent protection.
S 14.0 to 14.3 SEER Monoport inshot burners produce precise air--to--gas mixture,
S Up to 80.4% AFUE which provides for clean and efficient combustion. The large
S Factory--Installed TXV monoport on the inshot (or injection type) burners seldom, if ever,
S Multi--Speed Blower--Standard requires cleaning. All gas furnace components are accessible in one
S Direct Spark Ignition compartment.
S Low Sound Levels Turbo--tubulart heat exchangers are constructed of aluminized
steel for corrosion resistance and optimum heat transfer for
FEATURES/BENEFITS improved efficiency. The tubular design permits hot gases to make
One--piece heating and cooling units with low sound levels, easy multiple passes across the path of the supply air.
installation, low maintenance, and dependable performance. In addition, dimples located on the heat exchanger walls force the
Puron Environmentally Sound Refrigerant is Carrier’s unique hot gases to stay in close contact with the walls, improving heat
refrigerant designed to help protect the environment. Puron is an transfer.
HFC refrigerant which does not contain chlorine that can harm the Direct--drive brushless DC blower motor is standard on all 48VL
ozone layer. The most important advantage of Puron refrigerant is models.
that it has not been banned in future air conditioning systems as the
Direct--drive PSC condenser--fan motors are designed to help
traditional refrigerant R--22 has been. Puron refrigerant is in service
reduce energy consumption and provide for cooing operation
in over 100,000 systems proving highly reliable, environmentally
down to 40_F (4.4_C) outdoor temperature. Motormasterr II low
sound performance.
ambient kit is available as a field--installed accessory.
Easy Installation
Thermostat controls
Factory--assembled package is a compact, fully self--contained,
Time Guardr II anti--short cycle protection circuitry. If a
combination gas heating/electric cooling unit that is prewired,
non--corporate thermostat without anti--short cycle protection is
pre--piped, and pre--charged for minimum installation expense.
used the Time Guard II field--installed anti--short cycle kit is
These units are available in a variety of standard and optional
recommended.
heating/ cooling size combinations with voltage options to meet
residential and light commercial requirements. Units are
lightweight and install easily on a rooftop or at ground level. The

1
 Thermostatic Expansion Valve -- A hard shutoff, balance port Standard metal duct covers with insulation come with the unit
TXV maintains a constant superheat at the evaporator exit (cooling and cover the horizontal duct openings. These can be left in place if
cycle) resulting in higher overall system efficiency. the units are converted to downflow.
Refrigerant system is designed to provide dependability. Liquid Integrated Gas Control (IGC) board provides safe and efficient
filter driers are used to promote clean, unrestricted operation. Each control of heating and simplifies trouble--shooting through its
unit leaves the factory with a full refrigerant charge. Refrigerant built--in diagnostic function.
service connections make checking operating pressures easier. Cabinets are constructed of heavyduty, phosphated, zinc--coated
High and Low Pressure Switches provide added reliability for the prepainted steel capable of withstanding 500 hours in salt spray.
compressor. Interior surfaces of the evaporator/heat exchanger compartment are
Indoor and Outdoor coils are computer--designed for optimum insulated with cleanable semi--rigid insulation board, which keeps
heat transfer and efficiency. The indoor coil is fabricated from the conditioned air from being affected by the outdoor ambient
copper tube and aluminum fins and is located inside the unit for temperature and provides improved indoor air quality. (Conforms
protection against damage. The outdoor coil is internally mounted to American Society of Heating, Refrigeration and Air
on the top tier of the unit. Copper fin coils and pre--coated fin coils Conditioning Engineers 62.2.) The sloped drain pan minimizes
are available from the factory by special order. These coils are standing water in the drain. An external drain is provided.
recommended in applications where aluminum fins are likely to be Downflow operation is easily provided in the field to allow
damaged due to corrosion. They are ideal for seacoast applications. vertical ductwork connections. The basepan utilizes knockout style
Low sound ratings ensure a quiet indoor and outdoor seals on the bottom openings to ensure a positive seal in the
48VL

environment with sound ratings as low as 72dBA. horizontal airflow mode.

Easy to service cabinets provide easy single--panel accessibility to
serviceable components during maintenance and installation. The
basepan with integrated drain pan provides easy ground level
installation with or without a mounting pad. Convenient handholds
are provided to manipulate the unit on the jobsite. A nesting feature
ensures a positive basepan to roof curb seal when the unit is roof
mounted. A convenient 3/4--in. (19.05 mm) wide perimeter flange
makes frame mounting on a rooftop easy.

TABLE OF CONTENTS

Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1---2

Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . 3

ARI Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 8---9

Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12---22

Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . 26---28

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 30---31

2
MODEL NUMBER NOMENCLATURE
48VL --- 018 040 3 0 1 --- ---

Type of Unit Options

48VL --- Single Packaged
Gas Heating/Electric AD --- Louvered Grille
Cooling Unit BT --- AL evap, vinyl condenser
CC --- AL evap, CU condenser
CU --- CU evap & condenser
GS --- Stainless Steel HX
Low NOx Indicator TP --- Base unit with tin plated indoor coil hairpins
--- Standard TV --- TP with vinyl coating on outdoor coil
N --- Low Nox TC --- TP with AL indoor coil & CU/CU outdoor coil

Nominal Cooling Capacity See Price Page for full list of factory options.
018 --- 1--- 1/2 Tons Only used if ordering an option
024 --- 2.0 Tons
030 --- 2.5 Tons
036 --- 3.0 Tons Packaging
042 --- 3.5 Tons
048 --- 4.0 Tons
060 --- 5.0 Tons Series

48VL
Heat Input Size (Btuh)
040 --- 40,000
060 --- 60,000 Electrical Supply
090 --- 90,000 3 --- 208/230--- 1--- 60
115 --- 115,000 5 --- 208/230--- 3--- 60
130 --- 130,000 6 --- 460--- 3--- 60

LEGEND
AL --- Aluminum
CU --- Copper

ISO 9001:2000

REGISTERED
ama

This product has been

designed and manufactured
to meet Energy Star criteria
for energy efficiency when
matched with appropriate coil
components. However, proper
refrigerant charge and proper
airflow are critical to achieve
rated capacity and efficiency.
Installation of this product
should follow all manufacturing
refrigerant charging and airflow
instructions. Failure to confirm
proper charge and airflow may
reduce energy efficiency and
shorten equipment life.

3
 ARI* CAPACITIES

Cooling Capacities and Efficiencies

UNIT NOMINAL STANDARD NET COOLING
EER** SEER†
48VL TONS CFM CAPACITIES (Btuh)
018 1--1/2 650 18,000 12.0 14.3
024 2 800 24,000 12.0 14.3
030 2--1/2 1000 28,400 12.0 14.3
036 3 1200 34,200 12.0 14.2
042 3--1/2 1400 40,500 12.0 14.3
048 4 1600 48,000 12.0 14.3
060 5 1750 59,000 12.0 14.0
LEGEND Notes:
dB--- Sound Levels (decibels) 1. Ratings are net values, reflecting the effects of circulating fan heat.
db—Dry Bulb Ratings are based on:
SEER—Seasonal Energy Efficiency Ratio Cooling Standard: 80°F (26.7_C) db, 67°Fwb (19.4_C) indoor entering---air
wb—Wet Bulb temperature and 95°F db (35_C) outdoor entering---air temperature.
COP---Coefficient of Performance 2. Before purchasing this appliance, read important energy cost and effi-
* Air Conditioing & Refrigeration Institute. ciency information available from your retailer.
**At “A” conditions---80_F (26.7_C) indoor db/67_F (19.4_C) indoor wb &
95_F (35_C) outdoor db.
48VL

{ Rated in accordance with U.S. Government DOE Department of Energy)

test procedures and/or ARI Standards 210/240.

Gas Heating Capacities and Efficiencies

OUTPUT CAPACITY TEMPERATURE RISE
UNIT 48VL HEATING INPUT (Btuh) AFUE (%)
(Btuh) RANGE (°F)
018040 40,000 32,000 30--60 80.0
024040
40,000 32,000 30--60 80.0
030040
024060 48,000 25--55 80.0
030060 48,000 25--55 80.0
60,000
036060 48,000 25--55 80.0
042060 47,000 25--55 78.5
036090 72,000 35--65 79.3
042090 73,000 35--65 80.4
90,000
048090 73,000 35--65 80.4
060090 73,000 35--65 80.4
048115
115,000 93,000 30--60 80.3
060115
048130
130,000 103,000 35--65 78.9
060130
LEGEND
AFUE—Annual Fuel Utilization Efficiency
NOTE: Before purchasing this appliance, read important energy cost and efficiency information available from your retailer.

Outdoor Sound Power: Octave Band Data--Decibels

UNIT 48VL
Capacity 018 024 030 036 042 048 060
Sound Ratings* dBA 72 71 73 76 74 79 79
Frequency (Hz) dB
125 58.0 54.5 55.1 64.5 61.5 66.5 64.0
250 60.5 55.9 57.9 70.0 65.5 70.5 71.0
500 67.5 60.3 61.8 70.0 68.0 73.0 69.5
1000 66.5 61.0 62.0 70.0 69.0 73.5 72.5
2000 62.5 60.2 60.7 66.5 66.5 69.5 71.0
4000 56.5 54.0 55.0 61.5 61.0 66.0 67.5
8000 48.5 46.4 50.9 53.0 56.5 59.5 60.0
* Tested in accordance with ARI Standard 270 ---95 (not listed in ARI).

4
PHYSICAL DATA
UNIT SIZE 018040 024040 024060 030040 030060 036060 036090 042060 042090
NOMINAL CAPACITY (ton) 1--- 1/2 2 2 2--- 1/2 2--- 1/2 3 3 3--- 1/2 3--- 1/2
SHIPPING WEIGHT** (lb) 350 361 361 373 373 407 407 497 497
SHIPPING WEIGHT** (kg) 158.8 163.7 163.7 169.2 169.2 184.6 184.6 225.4 225.4
COMPRESSORS Scroll
Quantity 1
REFRIGERANT (R--- 410A)
Quantity (lb.) 6.7 7.5 7.5 7.8 7.8 9.8 9.8 11.0 11.0
Quantity (kg) 3.0 3.4 3.4 3.5 3.5 4.4 4.4 5.0 5.0
REFRIGERANT METERING DEVICE TXV
OUTDOOR COIL
Rows...Fins/in. 2...21 2...21 2...21 2...21 2...21 2...21 2...21 2...21 2...21
Face Area (sq ft) 10.2 10.2 10.2 10.2 10.2 15.25 15.25 19.4 19.4
OUTDOOR FAN
Nominal Cfm 2200 2200 2200 2800 2800 3000 3000 3500 3500
Diameter (in.) 22 22 22 22 22 22 22 22 22
Diameter (mm) 558.8 558.8 558.8 558.8 558.8 558.8 558.8 558.8 558.8
Motor Hp (Rpm) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825) 1/8 (825)
INDOOR COIL
Rows...Fins/in. 2...17 3...17 3...17 3...17 3...17 4...15 4...15 3...17 3...17
Face Area (sq ft) 3.7 3.7 3.7 3.7 3.7 3.7 3.7 4.7 4.7
INDOOR BLOWER
Nominal Cooling Airflow (Cfm) 600 800 800 1000 1000 1200 1200 1 00
1400 1 00
1400

48VL
Size (in.) 10x10 10x10 10x10 10x10 10x10 11x10 11x10 11x10 11x10
Size (mm.) 254x254 254x254 254x254 254x254 254x254 279.4x254 279.4x254 279.4x254 279.4x254
Motor HP (RPM) 1/3 (1050) 1/2 (1050) 1/2 (1050) 1/2 (1050) 1/2 (1050) 3/4 (1000) 3/4 (1000) 3/4 (1075) 3/4 (1075)
FURNACE SECTION*
Burner Orifice No. (Qty...Drill Size)
Natural Gas 2...44 2...44 2...38 2...44 2...38 2...38 3...38 2...38 3...38
Propane Gas 2...55 2...55 2...53 2...55 2...53 2...53 3...53 2...53 3...53
HIGH-- PRESSURE SWITCH 650 +/-- 15
(psig) Cut-- out Reset (Auto) 420 +/-- 25
LOSS-- OF-- CHARGE / LOW-- PRES-
20 +/-- 5
SURE SWITCH (Liquid Line) (psig)
45 +/-- 10
cut-- out Reset (auto)
RETURN--- AIR FILTERS†}
Throwaway Size (in.) 20x20x1 20x24x1 24x30x1
Throwaway Size (mm) 508x508x25 508x610x25 610x762x25

PHYSICAL DATA (CONT)

UNIT SIZE 048090 048115 048130 060090 060115 060130
NOMINAL CAPACITY (ton) 4 4 4 5 5 5
SHIPPING WEIGHT** (lb) 515 515 515 543 543 543
SHIPPING WEIGHT** (kg) 233.6 233.6 233.6 246.3 246.3 246.3
COMPRESSORS Scroll
Quantity 1
REFRIGERANT (R --- 410A)
Quantity (lb.) 10.5 10.5 10.5 14.5 14.5 14.5
Quantity (kg.) 4.8 4.8 4.8 6.6 6.6 6.6
REFRIGERANT METERING DEVICE TXV
OUTDOOR COIL
Rows...Fins/in. 2...21 2...21 2...21 2...21 2...21 2...21
Face Area (sq ft) 19.4 19.4 19.4 23.3 23.3 23.3
OUTDOOR FAN
Nominal Cfm 3500 3500 3500 4200 4200 4200
Diameter (in.) 22 22 22 22 22 22
Diameter (mm) 558.8 558.8 558.8 558.8 558.8 558.8
Motor Hp (Rpm) 1/4 (1100) 1/4 (1100) 1/4 (1100) 1/4 (1100) 1/4 (1100) 1/4 (1100)
INDOOR COIL
Rows...Fins/in. 3...17 3...17 3...17 4...17 4...17 4...17
Face Area (sq ft) 5.7 5.7 5.7 5.7 5.7 5.7
INDOOR BLOWER
Nominal Cooling Airflow (Cfm) 1600 1600 1600 1750 1750 1750
Size (In.) 11x10 11x10 11x10 11x10 11x10 11x10
Size (mm) 279.4x254 279.4x254 279.4x254 279.4x254 279.4x254 279.4x254
Motor HP (RPM) 1.0 (1075) 1.0 (1075) 1.0 (1075) 1.0 (1040) 1.0 (1040) 1.0 (1040)
FURNACE SECTION*
Burner Orifice No. (Qty...Drill Size)
Natural Gas 3...38 3...33 3...31 3...38 3...33 3...31
Propane Gas 3...53 3...51 3...49 3...53 3...51 3...49
HIGH--PRESSURE SWITCH 650 +/-- 15
(psig) Cut--out Reset (Auto) 420 +/-- 25
LOSS--OF--CHARGE / LOW--PRESSURE
20 +/-- 5
SWITCH (Liquid Line) (psig) cut--out Reset
45 +/-- 10
(auto)
RETURN--AIR FILTERS†}
24x36x1
Throwaway Size (in.)
610x914x25
Throwaway Size (mm)
*Based on altitude of 0 to 2000 ft (0 ---610 m).
{ Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity
of 300 ft/minute for throwaway type. Air filter pressure drop for non ---standard filters must not exceed 0.08 IN.W.C.
} If using accessory filter rack refer to the filter rack installation instructions for correct filter sizes and quantity.
** For 460 volt units, add 14 lbs (5.35 kg) to the shipping weight.

5
 OPTIONS AND ACCESSORIES Square--to--round duct transition kit enables 018--048 size units
to be fitted to 14 in. (355.6 mm) round ductwork.
Factory--installed options
Compressor hard start kit assists compressor start--up by
Louver grille provides hail and vandalism protection. A wire grille providing additional starting torque on single phase units and
is standard on all models. See model number nomenclature for prolongs compressor motor life.
louver grille options.
Corporate Thermostats provide control for the system heating
Coil options include copper/copper and vinyl--coated construction and cooling functions. Thermostat models are available in both
for refrigerant coils. Units are shipped standard with copper programmable and non--programmable versions.
tube/aluminum fin construction. See model number nomenclature
for coil options. Crankcase heater provides anti--floodback protection for
low--load cooling applications.
Field--installed accessories
Natural--to--propane gas conversion kit allows for conversion
Economizer with Solid-- State Controls and Barometric
from natural gas to propane gas for standard altitude (0 to 2000 ft
Relief Dampers
[0 to 610 m] above sea level).
Manual Air Damper (25% open)
Filter Rack Rigging kit includes lifting brackets which are inserted into the
Flat Roof Curbs (8-- in. and 14-- in.) unit base rigging holds to lift unit for rooftop applications.
Square-- to-- Round Duct Transition Kit Low--ambient kit (Motormaster II control) allows the use of
Thermostats mechanical cooling down to outdoor temperatures as low as 0_F
when properly installed.
48VL

Crankcase Heater
Compressor Hard Start Kit (for use on single--phase units only) Solid--state Time Guard II device provides short--cycling
Natural-- to-- propane Gas Conversion Kit protection for the compressor. Not required with corporate
High Altitude Propane Conversion Kit electronic thermostats.
Propane-- to-- natural Gas Conversion Kit Filter rack features easy installation, serviceability, and
Rigging Kit high--filtering performance for vertical applications.
Low Ambient Kit (Motormaster® II Control)
High altitude propane conversion kit is for use at 2001 to 6000
Solid-- State Time Guard® II Device
ft (610 to 1829 m) above sea level. Kit consists of propane gas
orifices that compensate for gas heat operation at high altitude.
Economizer with solid--state controls and barometric relief
Propane--to--natural conversion kit is for use at standard
dampers includes filter racks and provide outdoor air during
altitudes (0 to 2000 ft [0 to 610 m] above sea level). Kit contains
cooling and reduce compressor operation.
natural gas orifices and gas valve spring to convert the unit back to
Manual outside air damper includes hood and filter rack with natural gas.
adjustable damper blade for up to 25% outdoor air.
Flat roof curbs in both 8 in. (203.2 mm) and 14 in. (355.6 mm)
sizes are available for roof mounted applications.

6
 ECONOMIZER

COIL

FILTER ACCESS DOOR

(HORIZONTAL
FILTER APPLICATION ONLY.)
DO NOT REMOVE
FROM DOWNFLOW
DISCHARGE.

ECONOMIZER REPLACEMENT
PANEL

HOLE FOR
ECONOMIZER
WIRING HARDNESS

17 13/32
11 13/32”

RAINHOOD

48VL
DOOR
CAULK BOTTOM CORNER LATCH ANGLE
OF ECONOMIZER 16 1/4”
SIDE VIEW ON EACH SIDE
HINGED FILTER
ACCESS DOOR INSTALL
FI LTER FILTER ACCESS ALUMINUM
DOOR STICKER FILTER
COIL
ECONOMIZER

BASE

FLANGE
ON BASE DETAIL

FILTER RACK MANUAL OUTSIDE AIR DAMPER

BEND FLANGE AT 90̊ -SCREW TO
DIVIDER WITH 1-IN. SCREW REPLACEMENT
PANEL

TOP FILTER RACK MANUAL OUTSIDE

AIR HOOD
EV APORATOR
COIL
DAMPER
BLADE

BOTTOM FILTER
RACK

A05239

7
48VL UNIT DIMENSIONS - 48VL018--036

A08011

8
UNIT DIMENSIONS - 48VL042--060

48VL

A08012

9
 ACCESSORY DIMENSIONS
HVAC unit HVAC unit
base base
Gask eting
inner flange*
Screw Gasketing Screw
(NO TE A) inner flange* (NOTE A)

*Gasketing *Gasketing
outer flange outer flange

Wood nailer* Wood nailer*

Flashing field Flashing field
supplied Roof curb* supplied Roof curb*

Insulation (field Insulation (field

supplied) supplied)
Roofing material Roofing material
field supplied field supplied
Ductwork Ductwork
field supplied
Cant strip Cant strip field supplied
field supplied field supplied
48VL

Roof Roof

*Provided with roof curb *Provided with roof curb

Roof Curb for Small Cabinet Roof Curb for Large Cabinet
Note A: When unit mounting scre w is used, Note A: When unit mounting scre w is used,
retainer bracket must also be used. retainer bracket must also be used.

E G
Supply opening
(B x C) F
G B Typ. D
CTyp.
F

R/A S/A
A
Gasket around
E D
duct

Short Insulated Gasket around

Support
Insulated deck pan outer edge
deck pan
Long
Support

Return opening
(B X C)

A05308

CATALOG A B C D E F G
UNIT SIZE NUMBER IN. (MM) IN. (MM) IN. (MM) IN. (MM) IN. (MM) IN. (MM) IN. (MM)
CPRFCURB006A00 8 (203) 11 (279) 16--1/2 (419) 28--3/4 (730) 30--3/8 (771) 44--5/16 (1126) 45--15/16 (1167)
48VL018-- 036
CPRFCURB007A00 14 (356) 11 (279) 16--1/2 (419) 28--3/4 (730) 30--3/8 (771) 44--5/16 (1126) 45--15/16 (1167)
CPRFCURB008A00 8 (203) 16--3/16 (411) 17--3/8 (441) 40--1/4 (1022) 41--15/16 (1065) 44--7/16 (1129) 46--1/16 (1169)
48VL042-- 060
CPRFCURB009A00 14 (356) 16--3/16 (411) 17--3/8 (441) 40--1/4 (1022) 41--15/16 (1065) 44--7/16 (1129) 46--1/16 (1169)
NOTES:
1. Roof curb must be set up for unit being installed.
2. Seal strip must be applied, as required, to unit being installed.
3. Dimensions are in inches.
4. Roof curb is made of 16--gauge steel.
5. Attach ductwork to curb (flanges of duct rest on curb).
6. Insulated panels: 1--in. (25.4 mm) thick fiberglass 1 lb. density.
7. When unit mounting screw is used (see Note A), a retainer bracket must be used as well. This bracket must also be used when required by code for hurricane or seismic
conditions. This bracket is available through Micrometl.

10
1 2
(914 mm)

DETAIL A

3 4 A08005

A07216

48VL
SMALL CABINET LARGE CABINET
018 024 030 036 042 048 060
Unit* Unit*
lb kg lb kg lb kg lb kg lb kg lb kg lb kg
Rigging Rigging
350 158.8 361 163.7 373 169.2 407 184.6 497 225.4 515 233.6 543 246.3
Weight Weight
* For 460 volt units, add 14 lb (6.35 kg) to the rigging weight.

SELECTION PROCEDURE (WITH EXAMPLE)

1. Determine cooling and heating requirements at 4. Determine fan speed and power requirements at
design conditions: design conditions.
Given: Before entering the air delivery tables, calculate the total static
Required Cooling Capacity (TC) . . . . . . . . . . 34,000 Btuh pressure required. From the given example, the Wet Coil Pressure
Sensible Heat Capacity (SHC) . . . . . . . . . . . . 25,000 Btuh Drop Table, and the Filter Pressure Drop Table:
Required Heating Capacity . . . . . . . . . . . . . . . 60,000 Btuh External Static Pressure 0.100 in. wc
Condenser Entering Air Temperature . . . . . . . 95°F (35°C) Filter 0.07 in. wc
Indoor--Air Temperature . 80°F (26°C)edb 67°F (19°C)ewb Wet Coil Pressure Drop 0.180 in. wc
Evaporator Air Quantity . . . . . . . . . . . . . . . . . . 1200 CFM Total Static Pressure 0.287 in. wc
External Static Pressure . . . . . . . . . . . . . . . . . . 0.100 in. wc Enter the table for Dry Coil Air Delivery—Horizontal and
Downflow Discharge. At .287 in. wc ESP, the closest speed to
Electrical Characteristics . . . . . . . . . . . . . . . . . . . 208--1--60 1200 CFM is Med--Low (pink wire), which delivers 1262 CFM at
2. Select unit based on required cooling capacity. .3 in ESP.
Enter Net Cooling Capacities table at condenser entering 5. Select unit that corresponds to power source
temperature of 95°F (35°C). Unit 036 at 1200 cfm and 67°F available.
(19°C) ewb (entering wet bulb) will provide a total capacity of
36,000 Btuh and a SHC of 27,400 Btuh. Calculate SHC correction, The Electrical Data Table shows that the unit is designed to operate
if required, using Note 4 under Cooling Capacities tables. at 208--1--60.

3. Select heating capacity of unit to provide design

condition requirement.
In the Heating Capacities and Efficiencies table, note that the unit
036090 will provide 72,000 Btuh with an input of 90,000 Btuh.

11
 48VL

PERFORMANCE DATA

48VL018
EVAPORATOR CONDENSER ENTERING AIR TEMPERATURES °F (°C)
AIR 75 (23.9) 85 (29.4) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7)
Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total
MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys-
CFM/BF EWB
tem tem tem tem tem tem
Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW

57 14.82 14.82 1.17 15.59 15.59 1.33 15.84 15.84 1.49 15.51 15.51 1.66 14.53 14.53 1.86 12.88 12.88 2.07
62 15.13 12.87 1.17 15.58 15.58 1.33 15.84 15.84 1.49 15.51 15.51 1.66 14.53 14.53 1.86 12.88 12.88 2.07
525/0.05 63* 15.51 10.49 1.17 15.93 11.27 1.33 15.55 11.76 1.48 14.34 11.95 1.66 12.74 12.74 1.85 10.87 10.87 2.06
67 16.90 10.87 1.16 17.67 11.87 1.32 17.54 12.52 1.49 16.51 12.85 1.67 14.61 12.86 1.86 12.88 12.88 2.07
72 18.28 8.64 1.16 19.60 9.50 1.31 20.10 10.10 1.48 19.53 10.35 1.67 17.81 10.24 1.88 14.91 9.79 2.09
57 15.57 15.57 1.18 16.43 16.43 1.34 16.71 16.71 1.51 16.37 16.37 1.68 15.35 15.35 1.88 13.61 13.61 2.09
62 15.62 13.85 1.18 16.43 16.43 1.34 16.70 16.70 1.51 16.36 16.36 1.68 15.35 15.35 1.88 13.61 13.61 2.09
600/0.07 63* 15.91 11.17 1.18 16.36 12.09 1.34 15.98 12.67 1.50 14.79 12.92 1.67 13.44 13.44 1.87 11.48 11.48 2.08
67 17.23 11.46 1.18 18.09 12.67 1.33 18.00 13.48 1.50 16.96 13.90 1.69 15.35 15.35 1.88 13.61 13.61 2.09
72 18.51 8.92 1.18 19.88 9.88 1.33 20.47 10.61 1.50 19.97 11.00 1.68 18.24 10.98 1.89 15.24 10.56 2.11
57 16.17 16.17 1.19 17.12 17.12 1.34 17.44 17.44 1.51 17.10 17.10 1.70 16.05 16.05 1.90 14.24 14.24 2.11
62 16.17 16.17 1.19 17.12 17.12 1.34 17.44 17.44 1.51 17.09 17.09 1.70 16.05 16.05 1.90 14.23 14.23 2.11
675/0.08 63* 16.20 11.77 1.19 16.70 12.84 1.35 16.34 13.52 1.52 15.31 15.31 1.69 14.04 14.04 1.88 11.99 11.99 2.09
67 17.45 11.98 1.19 18.39 13.39 1.34 18.36 14.37 1.51 17.35 14.89 1.70 16.04 16.04 1.90 14.23 14.23 2.11
72 18.66 9.15 1.19 20.07 10.20 1.34 20.72 11.05 1.51 20.29 11.58 1.69 18.56 11.67 1.90 15.49 11.31 2.12
48VL024
EVAPORATOR CONDENSER ENTERING AIR TEMPERATURES °F (°C)
AIR 75 (23.9) 85 (29.4) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7)
Total
Total Total Total Total Total
Capacity Capacity Capacity Capacity Sys- Capacity Capacity
Sys- Sys- Sys- Sys- Sys-
CFM/BF EWB MBtuh MBtuh MBtuh MBtuh tem MBtuh MBtuh
tem tem tem tem tem
KW

12
KW KW KW KW KW
Total Sens Total Sens Total Sens Total Sens Total Sens Total Sens

57 23.13 23.13 1.51 21.91 21.91 1.72 20.50 20.50 1.96 18.92 18.92 2.21 17.16 17.16 2.50 15.20 15.20 2.81
62 24.10 21.63 1.51 22.43 20.43 1.73 20.57 20.42 1.96 18.92 18.92 2.21 17.15 17.15 2.50 15.20 15.20 2.81
700/0.02 63* 24.71 17.79 1.51 23.02 16.68 1.73 21.08 15.52 1.96 18.86 14.31 2.21 16.35 13.06 2.49 13.60 13.49 2.78
67 26.79 18.40 1.51 25.29 17.46 1.73 23.34 16.34 1.98 21.10 15.15 2.24 18.59 13.94 2.52 15.78 12.69 2.82
72 28.73 14.69 1.52 27.87 14.14 1.74 26.34 13.34 1.98 24.27 12.35 2.26 21.74 11.26 2.56 18.87 10.11 2.88
57 24.40 24.40 1.53 23.11 23.11 1.75 21.64 21.64 1.99 19.98 19.98 2.25 18.13 18.13 2.54 16.08 16.08 2.85
62 24.87 23.37 1.53 23.20 23.00 1.75 21.64 21.64 1.99 19.98 19.98 2.25 18.13 18.13 2.54 16.08 16.08 2.85
800/0.03 63* 25.40 19.01 1.53 23.70 17.92 1.75 21.68 16.72 1.99 19.39 15.47 2.24 16.83 14.16 2.52 14.31 14.31 2.82
67 27.34 19.51 1.53 25.95 18.71 1.75 24.00 17.61 2.00 21.67 16.38 2.27 19.09 15.13 2.55 16.24 13.80 2.85
72 29.18 15.26 1.54 28.30 14.76 1.76 26.88 14.05 2.01 24.85 13.13 2.28 22.30 12.04 2.58 19.34 10.88 2.91
57 25.44 25.44 1.55 24.15 24.15 1.77 22.62 22.62 2.02 20.89 20.89 2.29 18.97 18.97 2.57 16.83 16.83 2.89
62 25.53 25.30 1.55 24.15 24.15 1.77 22.62 22.62 2.02 20.89 20.89 2.29 18.96 18.96 2.57 16.83 16.83 2.89
900/0.03 63* 25.90 20.12 1.55 24.23 19.09 1.77 22.15 17.86 2.02 19.82 16.57 2.27 17.24 15.18 2.54 14.96 14.96 2.85
67 27.68 20.49 1.55 26.43 19.86 1.77 24.51 18.81 2.02 22.14 17.58 2.30 19.50 16.26 2.58 16.82 16.82 2.89
72 29.46 15.74 1.56 28.58 15.29 1.78 27.24 14.69 2.03 25.27 13.83 2.30 22.72 12.78 2.60 19.71 11.61 2.93
See Legend and Notes on Page 15.
 PERFORMANCE DATA (CONT)

48VL030
CONDENSER ENTERING AIR TEMPERATURES °F (°C)
EVAPORATOR AIR
75 (23.9) 85 (29.4) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7)
Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total
MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys-
CFM/BF EWB
tem tem tem tem tem tem
Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW

57 28.46 28.46 1.82 26.75 26.75 2.05 24.89 24.89 2.31 22.87 22.87 2.60 20.70 20.70 2.91 18.40 18.40 3.25
62 29.16 24.94 1.82 27.05 24.24 2.05 24.89 24.89 2.31 22.86 22.86 2.60 20.70 20.70 2.91 18.39 18.39 3.25
875/0.03 63* 29.82 20.37 1.82 27.65 19.70 2.06 25.25 18.93 2.31 22.60 18.05 2.59 19.73 17.05 2.89 16.70 15.92 3.21
67 32.32 21.11 1.81 30.19 20.56 2.06 27.78 19.87 2.33 25.09 19.05 2.63 22.19 18.13 2.93 19.08 17.11 3.26
72 35.18 16.93 1.82 33.30 16.52 2.06 31.09 15.99 2.33 28.50 15.30 2.63 25.62 14.49 2.97 22.41 13.55 3.33
57 29.83 29.83 1.85 28.06 28.06 2.10 26.12 26.12 2.37 24.01 24.01 2.65 21.74 21.74 2.97 19.33 19.33 3.31
62 30.00 26.83 1.85 28.06 28.06 2.10 26.11 26.11 2.37 24.00 24.00 2.65 21.74 21.74 2.97 19.33 19.33 3.31
1000/0.04 63* 30.52 21.77 1.85 28.31 21.13 2.10 25.84 20.35 2.36 23.13 19.46 2.64 20.21 18.43 2.94 17.36 17.36 3.26
67 32.96 22.50 1.85 30.84 22.03 2.09 28.40 21.37 2.37 25.67 20.57 2.67 22.69 19.62 2.99 19.55 18.54 3.31
72 35.69 17.67 1.85 33.82 17.32 2.10 31.62 16.85 2.37 29.05 16.22 2.67 26.12 15.44 3.01 22.85 14.52 3.37
57 30.95 30.95 1.88 29.15 29.15 2.13 27.15 27.15 2.41 24.97 24.97 2.71 22.62 22.62 3.03 20.12 20.12 3.37
62 30.94 30.94 1.88 29.15 29.15 2.13 27.15 27.15 2.41 24.96 24.96 2.71 22.62 22.62 3.03 20.12 20.12 3.37
1125/0.05 63* 31.04 23.08 1.88 28.81 22.48 2.13 26.30 21.70 2.40 23.56 20.78 2.68 20.65 20.48 2.99 18.05 18.05 3.32
67 33.41 23.79 1.88 31.32 23.40 2.13 28.87 22.80 2.40 26.11 22.00 2.71 23.10 21.02 3.04 20.11 20.11 3.37
72 36.05 18.34 1.89 34.17 18.04 2.13 31.98 17.63 2.41 29.41 17.06 2.71 26.48 16.33 3.05 23.17 15.44 3.41
48VL036
CONDENSER ENTERING AIR TEMPERATURES °F (°C)
EVAPORATOR AIR
75 (23.9) 85 (29.4) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7)
Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total
MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys-
CFM/BF EWB
tem tem tem tem tem tem
Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW

13
57 33.74 33.74 2.21 31.86 31.86 2.47 29.86 29.86 2.76 27.71 27.71 3.08 25.42 25.42 3.42 23.00 23.00 3.79
62 34.63 29.69 2.22 32.34 29.18 2.48 29.93 29.78 2.76 27.71 27.71 3.08 25.42 25.42 3.42 23.00 23.00 3.79
1050/0.02 63* 35.42 24.26 2.23 33.09 23.73 2.49 30.56 23.09 2.77 27.82 22.33 3.08 24.86 21.44 3.40 21.70 20.43 3.75
67 38.42 25.21 2.23 36.04 24.74 2.50 33.47 24.17 2.80 30.67 23.47 3.13 27.66 22.66 3.47 24.44 21.74 3.83
72 42.11 20.41 2.24 39.77 19.99 2.51 37.26 19.49 2.81 34.52 18.88 3.14 31.52 18.16 3.50 28.25 17.30 3.89
57 35.34 35.34 2.28 33.39 33.39 2.55 31.30 31.30 2.84 29.06 29.06 3.16 26.68 26.68 3.50 24.14 24.14 3.88
62 35.58 32.00 2.28 33.39 33.39 2.55 31.30 31.30 2.84 29.06 29.06 3.16 26.67 26.67 3.50 24.14 24.14 3.88
1200/0.03 63* 36.26 25.97 2.28 33.86 25.44 2.55 31.25 24.80 2.83 28.44 24.04 3.14 25.41 23.15 3.47 22.21 22.09 3.82
67 39.24 26.97 2.28 36.82 26.54 2.55 34.20 26.00 2.85 31.34 25.31 3.18 28.25 24.49 3.54 24.96 23.55 3.90
72 42.80 21.39 2.29 40.39 20.99 2.56 37.86 20.53 2.86 35.10 19.97 3.19 32.08 19.29 3.55 28.76 18.46 3.95
57 36.70 36.70 2.33 34.69 34.69 2.60 32.53 32.53 2.90 30.20 30.20 3.23 27.73 27.73 3.59 25.09 25.09 3.96
62 36.70 36.70 2.33 34.69 34.69 2.60 32.52 32.52 2.90 30.20 30.20 3.23 27.72 27.72 3.59 25.09 25.09 3.96
1350/0.03 63* 36.89 27.59 2.33 34.44 27.08 2.60 31.78 26.44 2.90 28.92 25.68 3.21 25.86 24.75 3.54 22.78 22.78 3.90
67 39.83 28.62 2.33 37.38 28.23 2.60 34.73 27.73 2.90 31.84 27.07 3.23 28.71 26.25 3.60 25.40 25.24 3.97
72 43.27 22.31 2.35 40.81 21.92 2.62 38.24 21.49 2.92 35.47 20.97 3.25 32.45 20.35 3.61 29.11 19.57 4.00
See Legend and Notes on Page 15.

48VL
 48VL

PERFORMANCE DATA (CONT)

48VL042
EVAPORATOR CONDENSER ENTERING AIR TEMPERATURES °F (°C)
AIR 75 (23.9) 85 (29.4) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7)
Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total
EWB Sys- Sys- Sys- Sys- Sys- Sys-
CFM/BF MBtuh MBtuh MBtuh MBtuh MBtuh MBtuh
tem tem tem tem tem tem
Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW

57 39.18 39.18 2.56 36.42 36.42 2.90 33.76 33.76 3.28 31.03 31.03 3.70 28.30 28.30 4.17 25.52 25.52 4.68
62 40.87 35.89 2.57 37.42 34.32 2.91 34.11 32.73 3.28 31.02 31.02 3.70 28.29 28.29 4.17 25.52 25.52 4.68
1225/0.03 63* 42.42 29.68 2.58 38.64 28.15 2.92 35.18 26.75 3.29 31.48 25.22 3.70 27.69 23.63 4.16 23.81 21.97 4.65
67 46.44 30.98 2.60 42.97 29.69 2.95 39.60 28.41 3.33 36.16 27.09 3.75 32.63 25.72 4.22 28.89 24.22 4.72
72 50.49 25.03 2.63 47.40 24.14 2.98 43.83 22.99 3.36 40.24 21.81 3.79 36.59 20.60 4.26 32.85 19.35 4.77
57 41.90 41.90 2.62 38.93 38.93 2.96 36.19 36.19 3.34 33.33 33.33 3.77 30.43 30.43 4.24 27.48 27.48 4.75
62 42.97 39.09 2.63 39.22 37.25 2.96 36.18 36.18 3.34 33.33 33.33 3.77 30.42 30.42 4.24 27.48 27.48 4.75
1400/0.04 63* 43.96 31.91 2.63 40.21 30.40 2.97 36.67 28.96 3.35 32.87 27.39 3.76 28.97 25.74 4.22 24.93 23.97 4.71
67 47.54 33.05 2.65 43.97 31.76 2.99 40.50 30.45 3.38 36.96 29.10 3.80 33.35 27.69 4.27 29.66 26.21 4.78
72 51.19 26.03 2.68 48.08 25.20 3.03 44.60 24.15 3.41 40.91 22.95 3.84 37.20 21.73 4.31 33.39 20.47 4.83
57 44.01 44.01 2.67 41.03 41.03 3.02 38.13 38.13 3.40 35.17 35.17 3.83 32.15 32.15 4.30 29.08 29.08 4.82
62 44.16 43.83 2.67 41.03 41.03 3.02 38.12 38.12 3.40 35.17 35.17 3.83 32.15 32.15 4.30 29.08 29.08 4.82
1575/0.05 63* 44.80 33.83 2.68 41.29 32.44 3.02 37.88 31.05 3.40 34.03 29.43 3.82 30.01 27.70 4.27 25.94 25.82 4.77
67 48.33 34.96 2.69 44.73 33.72 3.04 41.17 32.38 3.42 37.57 30.99 3.85 33.89 29.55 4.31 30.16 28.02 4.83
72 51.62 26.90 2.73 48.32 25.98 3.08 45.11 25.19 3.46 41.35 23.97 3.89 37.59 22.76 4.36 33.74 21.50 4.88

48VL048
EVAPORATOR CONDENSER ENTERING AIR TEMPERATURES °F (°C)
AIR 75 (23.9) 85 (29.4) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7)
Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total
MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys-
CFM EWB
tem tem tem tem tem tem

14
Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW

57 48.44 48.44 3.27 45.41 45.41 3.60 42.35 42.35 3.93 39.25 39.25 4.28 36.07 36.07 4.64 34.18 34.18 4.51
62 50.26 44.05 3.27 46.66 42.03 3.60 43.09 40.02 3.94 39.52 37.98 4.28 36.06 36.06 4.64 34.18 34.18 4.51
1400/0.03 63* 51.28 36.22 3.27 47.58 34.38 3.60 43.89 32.55 3.94 40.18 30.72 4.28 36.42 28.87 4.64 34.30 27.73 4.51
67 55.09 37.36 3.27 51.09 35.48 3.60 47.11 33.62 3.94 43.10 31.75 4.29 39.02 29.87 4.65 34.78 27.92 5.01
72 60.45 30.62 3.26 56.04 28.88 3.60 51.64 27.15 3.95 47.22 25.42 4.30 42.71 23.67 4.67 40.74 22.84 4.59
57 50.64 50.64 3.33 47.39 47.39 3.66 44.12 44.12 3.99 40.81 40.81 4.34 38.97 38.97 4.15 33.81 33.81 5.06
62 51.54 47.47 3.33 47.82 45.31 3.66 44.17 43.97 3.99 40.81 40.81 4.34 38.97 38.97 4.15 33.81 33.81 5.06
1600/0.04 63* 52.46 38.62 3.33 48.59 36.69 3.66 44.75 34.79 4.00 40.90 32.88 4.34 38.86 31.74 4.15 32.95 28.95 5.05
67 56.33 39.90 3.32 52.15 37.94 3.66 48.00 36.00 4.00 43.84 34.06 4.35 39.61 32.09 4.71 35.22 30.06 5.07
72 61.77 32.23 3.32 57.17 30.43 3.66 52.59 28.64 4.00 48.00 26.86 4.36 43.32 25.05 4.72 38.45 23.18 5.08
57 52.49 52.49 3.39 49.05 49.05 3.71 45.59 45.59 4.05 42.10 42.10 4.40 40.22 40.22 4.23 34.71 34.71 5.12
62 52.66 50.62 3.39 49.04 49.04 3.71 45.59 45.59 4.05 42.09 42.09 4.40 38.49 38.49 4.76 36.60 36.60 4.65
1800/0.04 63* 53.37 40.93 3.39 49.37 38.93 3.71 45.40 36.94 4.05 41.44 34.96 4.40 37.42 32.94 4.75 33.28 30.85 5.11
67 57.27 42.36 3.38 52.95 40.32 3.71 48.67 38.30 4.06 44.39 36.28 4.41 42.36 35.14 4.26 35.55 32.11 5.12
72 62.77 33.77 3.37 58.02 31.92 3.71 53.29 30.08 4.06 48.56 28.24 4.42 43.75 26.38 4.78 38.76 24.47 5.14
See Legend and Notes on Page 15.
 PERFORMANCE DATA (CONT)

48VL060
EVAPORATOR CONDENSER ENTERING AIR TEMPERATURES °F (°C)
AIR 75 (23.9) 85 (29.4) 95 (35) 105 (40.6) 115 (46.1) 125 (51.7)
Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total Capacity Total
MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys- MBtuh Sys-
CFM EWB
tem tem tem tem tem tem
Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW Total Sens KW

57 62.31 62.31 3.82 57.76 57.76 4.31 53.24 53.24 4.85 48.73 48.73 5.45 44.19 44.19 6.12 39.54 39.54 6.85
62 64.27 54.67 3.84 59.06 52.70 4.32 53.94 50.71 4.86 48.90 48.64 5.45 44.19 44.19 6.12 39.54 39.54 6.85
1750/0.03 63* 65.55 44.79 3.85 60.20 42.97 4.33 54.93 41.12 4.87 49.72 39.25 5.46 44.51 37.32 6.12 39.24 35.29 6.84
67 70.43 46.23 3.90 64.67 44.38 4.38 59.00 42.51 4.92 53.38 40.61 5.51 47.75 38.65 6.17 42.05 36.58 6.89
72 77.30 37.72 3.97 70.97 35.99 4.45 64.73 34.24 4.99 58.53 32.45 5.59 52.31 30.59 6.24 45.98 28.62 6.96
57 65.10 65.10 3.93 60.26 60.26 4.42 55.46 55.46 4.96 50.67 50.67 5.57 45.84 45.84 6.24 40.90 40.90 6.97
62 65.85 59.03 3.94 60.50 56.90 4.42 55.46 55.46 4.96 50.67 50.67 5.57 45.84 45.84 6.24 40.90 40.90 6.97
2000/0.04 63* 66.98 47.84 3.95 61.43 45.94 4.43 55.96 44.02 4.97 50.56 42.07 5.56 45.18 40.06 6.22 39.75 37.95 6.95
67 71.92 49.46 4.00 65.94 47.53 4.48 60.07 45.59 5.02 54.26 43.62 5.62 48.44 41.58 6.28 42.56 39.43 6.99
72 78.87 39.76 4.07 72.31 37.97 4.55 65.85 36.16 5.09 59.44 34.32 5.69 53.01 32.41 6.34 46.48 30.38 7.06
57 67.45 67.45 4.04 62.36 62.36 4.53 57.30 57.30 5.07 52.27 52.27 5.68 47.19 47.19 6.35 42.00 42.00 7.08
62 67.45 67.45 4.04 62.35 62.35 4.53 57.30 57.30 5.07 52.27 52.27 5.68 47.19 47.19 6.35 41.99 41.99 7.08
2250/0.04 63* 68.06 50.78 4.04 62.35 48.81 4.53 56.73 46.83 5.06 51.19 44.81 5.66 45.68 42.72 6.32 40.13 40.51 7.05
67 73.04 52.59 4.09 66.90 50.60 4.58 60.86 48.59 5.12 54.90 46.55 5.72 48.94 44.43 6.38 42.93 42.19 7.09
72 80.04 41.72 4.16 73.30 39.89 4.65 66.66 38.03 5.19 60.09 36.14 5.79 53.50 34.18 6.44 46.81 32.11 7.16
* At 75°F (24°C) entering dry bulb---Tennessee Valley Authority (TVA) rating conditions; all others at 80°F dry bulb.
LEGEND
BF— Bypass Factor
edb— Entering Dry ---Bulb
Ewb— Entering Wet---Bulb
kW — Total Unit Power Input
SHC— Sensible Heat Capacity (1000 Btuh)

15
TC — Total Capacity (1000 Btuh) (net)
rh—Relative Humidity

COOLING NOTES:
1. Ratings are net; they account for the effects of the evaporator ---fan motor power and heat.
2. Direct interpolation is permissible. Do not extrapolate.
3. The following formulas may be used:

tldb
Sensible capacity (Btuh)
= tedb ---
1.10 x cfm

Wet---bulb temperature corresponding to enthalpy hlwb total capacity (Btuh)

tlwb = = hewb ---
air leaving evaporator coil (hlwb) 4.5 x cfm
Where: hewb = Enthalpy of air entering evaporator coil
4. The SHC is based on 80_F (26.6_C) edb temperature of air entering evaporator coil. Below 80_F (26.6_C) edb, subtract (corr factor x cfm) from SHC.
Above 80_F (26.6_C) edb, add (corr factor x cfm) to SHC.
Correction Factor = 1.10 x (1 + BF) x (edb + 80).
5. Integrated capacity is maximum (instantaneous) capacity less the effect of frost on the outdoor coil and the heat required to defrost it.

48VL
 PERFORMANCE DATA (CONT)
Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --
Unit 48VL018--060
HEATING EXTERNAL STATIC PRESSURE (IN. W.C.)
MOTOR WIRE
UNIT RISE
SPEED COLOR 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
RANGE
CFM 785 652 508 --- --- --- --- --- --- --- --- --- --- --- ---
Heating Rise
38 46 59 NA NA NA NA NA NA
Low2 Blue (oF)
Heating Rise
21 26 33 NA NA NA NA NA NA
(oC)
CFM 793 665 545 --- --- --- --- --- --- --- --- --- --- --- ---
Heating Rise
Med--- 38 45 55 NA NA NA NA NA NA
Pink (oF)
Low Heating Rise
21 25 31 NA NA NA NA NA NA
(oC)
CFM 838 745 645 542 --- --- --- --- --- --- --- --- --- ---
Heating Rise
30 --- 60oF (oF)
36 41 47 56 NA NA NA NA NA
48VL( --- ,N)018040 Medium Red
(17 --- 33oC) Heating Rise
20 23 26 31 NA NA NA NA NA
(oC)
CFM 842 749 658 589 487 --- --- --- --- --- --- --- ---
48VL

Heating Rise
Med--- 36 40 46 51 NA NA NA NA NA
Orange (oF)
High1 Heating Rise
20 22 26 29 NA NA NA NA NA
(oC)
CFM 1124 1047 976 898 822 749 656 --- --- --- ---
Heating Rise
NA NA 31 34 37 40 46 NA NA
High Black (oF)
Heating Rise
NA NA 17 19 20 22 26 NA NA
(oC)
CFM 741 638 547 415 --- --- --- --- --- --- --- --- --- ---
Heating Rise
41 47 55 NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
23 26 31 NA NA NA NA NA NA
(oC)
CFM 898 820 738 662 536 --- --- --- --- --- --- --- ---
Heating Rise
Med--- 34 37 41 46 56 NA NA NA NA
Pink (oF)
Low2 Heating Rise
19 20 23 25 31 NA NA NA NA
(oC)
CFM 973 887 823 733 665 538 451 --- --- --- ---
Heating Rise
30 --- 60oF (oF)
31 34 37 41 45 56 NA NA NA
48VL( --- ,N)024040 Medium1 Red
(17 --- 33oC) Heating Rise
17 19 20 23 25 31 NA NA NA
(oC)
CFM 1140 1064 996 915 840 758 687 564 480
Heating Rise
Med--- NA NA 30 33 36 40 44 54 NA
Orange (oF)
High Heating Rise
NA NA 17 18 20 22 24 30 NA
(oC)
CFM 1202 1140 1082 1015 961 881 810 732 631
Heating Rise
NA NA NA 30 31 34 37 41 48
High Black (oF)
Heating Rise
NA NA NA 17 17 19 21 23 27
(oC)

16
Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --
Unit 48VL018--060 (Cont)
HEATING EXTERNAL STATIC PRESSURE (IN. W.C.)
MOTOR WIRE
UNIT RISE
SPEED COLOR 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
RANGE
CFM 741 638 547 415 --- --- --- --- --- --- --- --- --- ---
Heating Rise
NA NA NA NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
NA NA NA NA NA NA NA NA NA
(oC)
CFM 898 820 738 662 536 --- --- --- --- --- --- --- ---
Heating Rise
Med--- 49 54 NA NA NA NA NA NA NA
Pink (oF)
Low2 Heating Rise
27 30 NA NA NA NA NA NA NA
(oC)
CFM 973 887 823 733 665 538 451 --- --- --- ---
Heating Rise
25 --- 55oF (oF)
46 50 54 NA NA NA NA NA NA
48VL( --- ,N)024060 Medium Red
(14 --- 31oC) Heating Rise
25 28 30 NA NA NA NA NA NA
(oC)
CFM 1140 1064 996 915 840 758 687 564 480
Heating Rise
Med--- 39 42 45 49 53 NA NA NA NA
Orange (oF)

48VL
High Heating Rise
22 23 25 27 29 NA NA NA NA
(oC)
CFM 1202 1140 1082 1015 961 881 810 732 631
Heating Rise
37 39 41 44 46 50 55 NA NA
High1 Black (oF)
Heating Rise
21 22 23 24 26 28 30 NA NA
(oC)
CFM 741 638 547 415 --- --- --- --- --- --- --- --- --- ---
Heating Rise
41 47 55 NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
23 26 31 NA NA NA NA NA NA
(oC)
CFM 898 820 738 662 536 --- --- --- --- --- --- --- ---
Heating Rise
Med--- 34 37 41 46 56 NA NA NA NA
Pink (oF)
Low Heating Rise
19 20 23 25 31 NA NA NA NA
(oC)
CFM 973 887 823 733 665 538 451 --- --- --- ---
Heating Rise
30 --- 60oF (oF)
31 34 37 41 45 56 NA NA NA
48VL( --- ,N)030040 Medium1 Red
(17 --- 33oC) Heating Rise
17 19 20 23 25 31 NA NA NA
(oC)
CFM 1140 1064 996 915 840 758 687 564 480
Heating Rise
Med--- NA NA 30 33 36 40 44 54 NA
Orange (oF)
High2 Heating Rise
NA NA 17 18 20 22 24 30 NA
(oC)
CFM 1202 1140 1082 1015 961 881 810 732 631
Heating Rise
NA NA NA 30 31 34 37 41 48
High Black (oF)
Heating Rise
NA NA NA 17 17 19 21 23 27
(oC)
CFM 741 638 547 415 --- --- --- --- --- --- --- --- --- ---
Heating Rise
NA NA NA NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
NA NA NA NA NA NA NA NA NA
(oC)
CFM 898 820 738 662 536 --- --- --- --- --- --- --- ---
Heating Rise
Med--- 49 54 NA NA NA NA NA NA NA
Pink (oF)
Low Heating Rise
27 30 NA NA NA NA NA NA NA
(oC)
CFM 973 887 823 733 665 538 451 --- --- --- ---
Heating Rise
25 --- 55oF (oF)
46 50 54 NA NA NA NA NA NA
48VL( --- ,N)030060 Medium Red
(14 --- 31oC) Heating Rise
25 28 30 NA NA NA NA NA NA
(oC)
CFM 1140 1064 996 915 840 758 687 564 480
Heating Rise
Med--- 39 42 45 49 53 NA NA NA NA
Orange (oF)
High2 Heating Rise
22 23 25 27 29 NA NA NA NA
(oC)
CFM 1202 1140 1082 1015 961 881 810 732 631
Heating Rise
37 39 41 44 46 50 55 NA NA
High1 Black (oF)
Heating Rise
21 22 23 24 26 28 30 NA NA
(oC)

17
 Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --
Unit 48VL018--060 (Cont)
HEATING EXTERNAL STATIC PRESSURE (IN. W.C.)
MOTOR WIRE
UNIT RISE
SPEED COLOR 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
RANGE
CFM 1206 1151 1085 1033 961 901 839 769 694
Heating Rise
37 39 41 43 46 49 53 NA NA
Low1 Blue (oF)
Heating Rise
20 21 23 24 26 27 29 NA NA
(oC)
CFM 1369 1317 1262 1208 1152 1095 1037 979 919
Heating Rise
Med--- 32 34 35 37 39 41 43 45 48
Pink (oF)
Low2 Heating Rise
18 19 20 20 21 23 24 25 27
(oC)
CFM 1419 1370 1315 1269 1209 1161 1101 1043 984
Heating Rise
25 --- 55oF (oF)
31 32 34 35 37 38 40 43 45
48VL( --- ,N)036060 Medium Red
(14 --- 31oC) Heating Rise
17 18 19 19 20 21 22 24 25
(oC)
CFM 1557 1507 1464 1412 1365 1310 1265 1212 1154
Heating Rise
Med--- 29 29 30 31 33 34 35 37 39
Orange (oF)
48VL

High Heating Rise

16 16 17 17 18 19 20 20 21
(oC)
CFM 1599 1553 1505 1460 1410 1361 1310 1262 1203
Heating Rise
28 29 30 30 32 33 34 35 37
High Black (oF)
Heating Rise
15 16 16 17 18 18 19 20 21
(oC)
CFM 1206 1151 1085 1033 961 901 839 769 694
Heating Rise
56 59 63 NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
31 33 35 NA NA NA NA NA NA
(oC)
CFM 1369 1317 1262 1208 1152 1095 1037 979 919
Heating Rise
Med--- 50 52 54 56 59 62 NA NA NA
Pink (oF)
Low2 Heating Rise
28 29 30 31 33 35 NA NA NA
(oC)
CFM 1419 1370 1315 1269 1209 1161 1101 1043 984
Heating Rise
35 --- 65oF (oF)
48 50 52 54 56 59 62 65 NA
48VL( --- ,N)036090 Medium Red
(19 --- 36oC) Heating Rise
27 28 29 30 31 33 34 36 NA
(oC)
CFM 1557 1507 1464 1412 1365 1310 1265 1212 1154
Heating Rise
Med--- 44 45 46 48 50 52 54 56 59
Orange (oF)
High Heating Rise
24 25 26 27 28 29 30 31 33
(oC)
CFM 1599 1553 1505 1460 1410 1361 1310 1262 1203
Heating Rise
43 44 45 47 48 50 52 54 57
High1 Black (oF)
Heating Rise
24 24 25 26 27 28 29 30 31
(oC)
CFM 1295 1234 1182 1126 1075 1016 955 898 857
Heating Rise
34 36 38 39 41 44 47 49 52
Low1 Blue (oF)
Heating Rise
19 20 21 22 23 24 26 27 29
(oC)
CFM 1345 1282 1235 1194 1140 1095 1027 974 921
Heating Rise
Med--- 33 35 36 37 39 41 43 46 48
Pink (oF)
Low Heating Rise
18 19 20 21 22 23 24 25 27
(oC)
CFM 1505 1452 1413 1358 1323 1282 1234 1169 1130
Heating Rise
25 --- 55oF (oF)
30 31 31 33 34 35 36 38 39
48VL( --- ,N)042060 Medium Red
(14 --- 31oC) Heating Rise
16 17 17 18 19 19 20 21 22
(oC)
CFM 1545 1492 1449 1411 1362 1313 1278 1231 1188
Heating Rise
Med--- 29 30 31 31 33 34 35 36 37
Orange (oF)
High2 Heating Rise
16 17 17 17 18 19 19 20 21
(oC)
CFM 1705 1643 1607 1568 1518 1483 1448 1404 1360
Heating Rise
26 27 28 28 29 30 31 32 33
High Black (oF)
Heating Rise
14 15 15 16 16 17 17 18 18
(oC)

18
Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --
Unit 48VL018--060 (Cont)
HEATING EXTERNAL STATIC PRESSURE (IN. W.C.)
MOTOR WIRE
UNIT RISE
SPEED COLOR 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
RANGE
CFM 1295 1234 1182 1126 1075 1016 955 898 857
Heating Rise
53 55 58 60 63 NA NA NA NA
Low Blue (oF)
Heating Rise
29 31 32 34 35 NA NA NA NA
(oC)
CFM 1345 1282 1235 1194 1140 1095 1027 974 921
Heating Rise
Med--- 51 53 55 57 60 62 NA NA NA
Pink (oF)
Low Heating Rise
28 29 31 32 33 35 NA NA NA
(oC)
CFM 1505 1452 1413 1358 1323 1282 1234 1169 1130
Heating Rise
35 --- 65oF (oF)
45 47 48 50 51 53 55 58 60
48VL( --- ,N)042090 Medium1 Red
(19 --- 36oC) Heating Rise
25 26 27 28 29 29 31 32 33
(oC)
CFM 1545 1492 1449 1411 1362 1313 1278 1231 1188
Heating Rise
Med--- 44 46 47 48 50 52 53 55 57
Orange (oF)

48VL
High2 Heating Rise
24 25 26 27 28 29 30 31 32
(oC)
CFM 1705 1643 1607 1568 1518 1483 1448 1404 1360
Heating Rise
40 41 42 43 45 46 47 48 50
High Black (oF)
Heating Rise
22 23 24 24 25 25 26 27 28
(oC)
CFM 1445 1389 1341 1281 1236 1189 1139 1072 1027
Heating Rise
47 49 51 53 55 57 60 63 NA
Low1 Blue (oF)
Heating Rise
26 27 28 29 31 32 33 35 NA
(oC)
CFM 1678 1635 1602 1558 1513 1474 1438 1404 1349
Heating Rise
Med--- 41 42 42 44 45 46 47 48 50
Pink (oF)
Low2 Heating Rise
23 23 24 24 25 26 26 27 28
(oC)
CFM 1962 1915 1880 1843 1794 1753 1711 1675 1628
Heating Rise
35 --- 65oF (oF)
35 36 36 37 38 39 40 41 42
48VL( --- ,N)048090 Medium Red
(19 --- 36oC) Heating Rise
19 20 20 20 21 22 22 23 23
(oC)
CFM 2131 2088 2065 2013 1982 1941 1888 1860 1785
Heating Rise
Med--- NA NA NA NA NA 35 36 37 38
Orange (oF)
High Heating Rise
NA NA NA NA NA 19 20 20 21
(oC)
CFM 2461 2409 2339 2286 2192 2140 2062 1968 1874
Heating Rise
NA NA NA NA NA NA NA 35 36
High Black (oF)
Heating Rise
NA NA NA NA NA NA NA 19 20
(oC)
CFM 1445 1389 1341 1281 1236 1189 1139 1072 1027
Heating Rise
60 NA NA NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
33 NA NA NA NA NA NA NA NA
(oC)
CFM 1678 1635 1602 1558 1513 1474 1438 1404 1349
Heating Rise
Med--- 52 53 54 56 57 59 60 NA NA
Pink (oF)
Low2 Heating Rise
29 30 30 31 32 33 34 NA NA
(oC)
CFM 1962 1915 1880 1843 1794 1753 1711 1675 1628
Heating Rise
30 --- 60oF (oF)
44 45 46 47 48 50 51 52 53
48VL( --- ,N)048115 Medium Red
(17 --- 33oC) Heating Rise
25 25 26 26 27 28 28 29 30
(oC)
CFM 2131 2088 2065 2013 1982 1941 1888 1860 1785
Heating Rise
Med--- 41 42 42 43 44 45 46 47 49
Orange (oF)
High1 Heating Rise
23 23 23 24 24 25 26 26 27
(oC)
CFM 2461 2409 2339 2286 2192 2140 2062 1968 1874
Heating Rise
35 36 37 38 40 41 42 44 46
High Black (oF)
Heating Rise
20 20 21 21 22 23 23 25 26
(oC)

19
 Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --
Unit 48VL018--060 (Cont)
HEATING EXTERNAL STATIC PRESSURE (IN. W.C.)
MOTOR WIRE
UNIT RISE
SPEED COLOR 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
RANGE
CFM 1445 1389 1341 1281 1236 1189 1139 1072 1027
Heating Rise
NA NA NA NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
NA NA NA NA NA NA NA NA NA
(oC)
CFM 1678 1635 1602 1558 1513 1474 1438 1404 1349
Heating Rise
Med--- 57 59 60 62 64 65 NA NA NA
Pink (oF)
Low2 Heating Rise
32 33 33 34 35 36 NA NA NA
(oC)
CFM 1962 1915 1880 1843 1794 1753 1711 1675 1628
Heating Rise
35 --- 65oF (oF)
49 50 51 52 54 55 56 57 59
48VL( --- ,N)048130 Medium Red
(19 --- 36oC) Heating Rise
27 28 28 29 30 31 31 32 33
(oC)
CFM 2131 2088 2065 2013 1982 1941 1888 1860 1785
Heating Rise
Med--- 45 46 47 48 49 50 51 52 54
Orange (oF)
48VL

High1 Heating Rise

25 26 26 27 27 28 28 29 30
(oC)
CFM 2461 2409 2339 2286 2192 2140 2062 1968 1874
Heating Rise
39 40 41 42 44 45 47 49 51
High Black (oF)
Heating Rise
22 22 23 23 24 25 26 27 29
(oC)
CFM 1448 1362 1296 1226 1168 1108 1071 998 905
Heating Rise
47 50 52 55 58 61 63 NA NA
Low1 Blue (oF)
Heating Rise
26 28 29 31 32 34 35 NA NA
(oC)
CFM 1722 1675 1614 1543 1499 1442 1408 1356 1308
Heating Rise
Med--- 39 41 42 44 45 47 48 50 52
Pink (oF)
Low Heating Rise
22 23 23 24 25 26 27 28 29
(oC)
CFM 1887 1847 1783 1726 1677 1625 1578 1527 1432
Heating Rise
35 --- 65oF (oF)
36 37 38 39 41 42 43 45 47
48VL( --- ,N)060090 Medium2 Red
(19 --- 36oC) Heating Rise
20 20 21 22 23 23 24 25 26
(oC)
CFM 2055 2008 1958 1927 1900 1768 1685 1581 1458
Heating Rise
Med--- NA NA 35 35 36 38 40 43 47
Orange (oF)
High Heating Rise
NA NA 19 20 20 21 22 24 26
(oC)
CFM 2292 2238 2158 2049 1935 1840 1732 1635 1513
Heating Rise
NA NA NA NA 35 37 39 42 45
High Black (oF)
Heating Rise
NA NA NA NA 20 21 22 23 25
(oC)
CFM 1448 1362 1296 1226 1168 1108 1071 998 905
Heating Rise
60 NA NA NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
33 NA NA NA NA NA NA NA NA
(oC)
CFM 1722 1675 1614 1543 1499 1442 1408 1356 1308
Heating Rise
Med--- 50 52 54 56 58 60 NA NA NA
Pink (oF)
Low Heating Rise
28 29 30 31 32 33 NA NA NA
(oC)
CFM 1887 1847 1783 1726 1677 1625 1578 1527 1432
Heating Rise
30 --- 60oF (oF)
46 47 49 50 52 53 55 57 NA
48VL( --- ,N)060115 Medium2 Red
(17 --- 33oC) Heating Rise
26 26 27 28 29 30 31 32 NA
(oC)
CFM 2055 2008 1958 1927 1900 1768 1685 1581 1458
Heating Rise
Med--- 42 43 44 45 46 49 52 55 60
Orange (oF)
High1 Heating Rise
23 24 25 25 25 27 29 31 33
(oC)
CFM 2292 2238 2158 2049 1935 1840 1732 1635 1513
Heating Rise
38 39 40 42 45 47 50 53 57
High Black (oF)
Heating Rise
21 22 22 24 25 26 28 30 32
(oC)

20
Dry Coil Air Delivery* -- Horizontal and Downflow Discharge --
Unit 48VL018--060 (Cont)
HEATING EXTERNAL STATIC PRESSURE (IN. W.C.)
MOTOR WIRE
UNIT RISE
SPEED COLOR 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
RANGE
CFM 1448 1321 1282 1235 1192 1145 1101 1057 1011
Heating Rise
NA NA NA NA NA NA NA NA NA
Low Blue (oF)
Heating Rise
NA NA NA NA NA NA NA NA NA
(oC)
CFM 1722 1675 1614 1543 1499 1442 1408 1356 1308
Heating Rise
Med--- 56 57 60 62 64 NA NA NA NA
Pink (oF)
Low Heating Rise
31 32 33 35 36 NA NA NA NA
(oC)
CFM 1887 1847 1783 1726 1677 1625 1578 1527 1432
Heating Rise
35 --- 65oF (oF)
51 52 54 56 57 59 61 63 NA
48VL( --- ,N)060130 Medium2 Red
(19 --- 36oC) Heating Rise
28 29 30 31 32 33 34 35 NA
(oC)
CFM 2055 2008 1958 1927 1900 1768 1685 1581 1458
Heating Rise
Med--- 47 48 49 50 51 54 57 61 NA
Orange (oF)

48VL
High1 Heating Rise
26 27 27 28 28 30 32 34 NA
(oC)
CFM 2292 2238 2158 2049 1935 1840 1732 1635 1513
Heating Rise
42 43 45 47 50 52 56 59 64
High Black (oF)
Heating Rise
23 24 25 26 28 29 31 33 35
(oC)
* Air delivery values are without air filter and are for dry coil (See 48VL Wet Coil Pressure Drop table).
1 Factory ---shipped heating speed
2 Factory ---shipped cooling speed
NA --- Not allowed for heating speed
Note: Deduct field---supplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting.

Filter Pressure Drop Table (IN. W.C.)

FILTER SIZE CFM
in. (mm) 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
20X20X1
0.05 0.07 0.08 0.1 0.12 0.13 0.14 0.15 — — — — — — — — — — —
(508X508X25)
20X24X1
— — — — 0.09 0.10 0.11 0.13 0.14 0.15 0.16 — — — — — — — —
(508X610x25)
24X30X1
— — — 0.04 0.05 0.06 0.07 0.07 0.08 0.09 0.1 — — — — — — — —
(610X762x25)
24X36X1
— — — — — — — 0.06 0.07 0.07 0.08 0.09 0.09 0.10 0.11 0.12 0.13 0.14 0.14
(610X914X25)

48VL Wet Coil Pressure Drop

Standard CFM (S.C.F.M)
Unit Size
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
018 0.02 0.035 0.05 0.065
024 0.06 0.07 0.08 0.09 0.1
030 0.12 0.15 0.19 0.23 0.27
036 0.07 0.11 0.18 0.26 0.35
042 0.04 0.07 0.1 0.15 0.21
048 0.11 0.14 0.17 0.22 0.28
060 0.1 0.17 0.23 0.31 0.36

Economizer 1--in. Filter Pressure Drop (IN. W.C.)

UNIT 48VL PRESSURE DROP
018--- 036 0.20
042--- 060 0.25

21
 High Altitude Compensation
Natural Gas Only
Orifice Conversion—3.5 IN. W.C. Manifold Pressure*
ALTITUDE ft
INPUT (Btuh) ORIFICE NUMBER†
(m)
40,000 #44
60,000 #38
0 ---2000
90,000 #38
(0 ---610)
115,000 #33
130,000 #31
32,800 #48
49,200 #42
2001 ---4500
73,800 #42
(610 ---1372)
94,300 #36
106,600 #33
*As the height above sea level increases, there is less oxygen per cubic ft of
air. Therefore, heat input rate should be reduced at higher altitudes.
{Orifices available through your distributor.
48VL

Propane Gas Only

Orifice Conversion—10.0 IN. W.C. Manifold Pressure*
ALTITUDE ft
INPUT (Btuh) ORIFICE NUMBER{
(m)
38,000 #55
53,000 #53
0 ---2000
79,000 #53
(0 ---610)
103,000 #51
116,000 #49
31,700 #56
45,700 #54
2001 ---4500
68,600 #54
(610 ---1372)
82,800 #53
100,800 #52
*As the height above sea level increases, there is less oxygen per cubic ft of
air. Therefore, heat input rate should be reduced at higher altitudes.
{Orifices available through your distributor.

22
TYPICAL PIPING AND WIRING

VERTICAL DISCHARGE

ROOF-MOUNTING
CURB

ROOF

RETURN-AIR
FLEXIBLE DUCT

SUPPLY-AIR

48VL
FLEXIBLE DUCT

CEILING
CONCENTRIC DIFFUSER BOX
(FIELD-SUPPLIED)

INDOOR
THERMOSTAT

RETURN
AIR

FROM
TOP COVER POWER
SOURCE

DISCONNECT
PER NEC*
FROM
GAS LINE

*NEC - NATIONAL ELECTRICAL CODE

23
 APPLICATION DATA
Condensate trap — A 2--in. (50.8 mm) condensate trap must be Maximum cooling airflow — To minimize the possibility of
field supplied. condensate blow--off from the evaporator, airflow through the units
should not exceed 450 cfm per ton.
Ductwork — Secure downflow discharge ductwork to roof curb.
For horizontal discharge applications, attach ductwork to unit with Minimum cooling airflow — Minimum cooling airflow is 350
flanges. cfm per ton.
To convert a unit to downflow discharge — Units are equipped Minimum ambient cooling operation temperature — All
with factory--installed inserts in the down--flow openings. Removal standard units have a minimum ambient operating temperature of
of the inserts is similar to removing an electrical knock--out. Use 40_F (4_C). With accessory low ambient temperature kit, units can
the duct cover to seal the horizontal discharge openings in the unit. operate at temperatures down to 0_F (--17_C).
Units installed in horizontal discharge orientation do not require Minimum temperature — Air entering the heat exchanger in
duct covers. heating mode must be a minimum of 50_F (10_C) continuous
Airflow — Units are draw--thru in the cooling mode and and/or 45_F (7_C) intermittent.
blow--thru in the heating mode.
48VL

24
ELECTRICAL DATA
VOLTAGE
NOMINAL COMPRESSOR OFM IFM IDM POWER SUPPLY
UNIT RANGE
V--- PH --- HZ
MIN MAX RLA LRA FLA FLA FLA MCA MOCP
48VL( ---,N)018040 9.0 48.0 0.9 2.8 0.7 15.0 20
48VL( ---,N)024040 12.8 58.3 0.9 4.1 0.7 21.0 30
48VL( ---,N)024060 12.8 58.3 0.9 4.1 1.7 21.0 30
48VL( ---,N)030040 12.8 64.0 0.9 4.1 0.7 21.0 30
48VL( ---,N)030060 12.8 64.0 0.9 4.1 1.7 21.0 30
48VL( ---,N)036060 14.1 77.0 0.9 6.0 1.7 24.5 35
48VL( ---,N)036090 14.1 77.0 0.9 6.0 0.5 24.5 35
48VL( ---,N)042060 17.9 112.0 0.9 6.0 1.7 29.3 45
48VL( ---,N)042090 208/230 ---1 ---60 187 253 17.9 112.0 0.9 6.0 0.7 29.3 45
48VL( ---,N)048090 21.8 117.0 1.5 7.6 0.7 36.4 50
48VL( ---,N)048115 21.8 117.0 1.5 7.6 1.7 36.4 50
48VL( ---,N)048130 21.8 117.0 1.5 7.6 0.5 36.4 50
48VL( ---,N)060090 26.4 134.0 1.9 7.6 0.7 42.5 60
48VL( ---,N)060115 26.4 134.0 1.9 7.6 1.7 42.5 60
48VL( ---,N)060115 26.4 134.0 1.9 7.6 1.7 42.5 60
48VL( ---,N)060130 26.4 134.0 1.9 7.6 0.5 42.5 60
48VL( ---,N)030040 8.3 58.0 0.9 4.1 0.7 15.4 20
48VL( ---,N)030060 8.3 58.0 0.9 4.1 1.7 15.4 20
48VL( ---,N)036060 9.0 71.0 0.9 6.0 1.7 18.2 25
48VL( ---,N)036090 9.0 71.0 0.9 6.0 0.5 18.2 25

48VL
48VL( ---,N)042060 13.5 88.0 0.9 6.0 1.7 23.8 35
48VL( ---,N)042090 13.5 88.0 0.9 6.0 0.7 23.8 35
48VL( ---,N)048090 208/230 ---3 ---60 187 253 13.7 83.1 1.5 7.6 0.7 26.2 35
48VL( ---,N)048115 13.7 83.1 1.5 7.6 1.7 26.2 35
48VL( ---,N)048130 13.7 83.1 1.5 7.6 0.5 26.2 35
48VL( ---,N)060090 16.0 110.0 1.9 7.6 0.7 29.5 40
48VL( ---,N)060115 16.0 110.0 1.9 7.6 1.7 29.5 40
48VL( ---,N)060130 16.0 110.0 1.9 7.6 0.5 29.5 40
48VL( ---,N)036060 5.6 38.0 0.6 6.0 0.7 10.6 15
48VL( ---,N)036090 5.6 38.0 0.6 6.0 0.3 10.6 15
48VL( ---,N)042060 6.0 44.0 0.6 6.0 0.7 11.1 15
48VL( ---,N)042090 6.0 44.0 0.6 6.0 0.3 11.1 15
48VL( ---,N)048090 460 ---3 ---60 414 506 6.2 41.0 0.9 7.6 0.3 12.4 15
48VL( ---,N)048115 6.2 41.0 0.9 7.6 0.7 12.4 15
48VL( ---,N)048130 6.2 41.0 0.9 7.6 0.3 12.4 15
48VL( ---,N)060090 7.8 52.0 1.0 7.6 0.3 14.6 20
EXAMPLE: Supply voltage is 230-3-60.
AB = 228 v
LEGEND BC = 231 v
FLA -- Full Load Amps AC = 227 v
LRA -- Locked Rotor Amps
Average Voltage = 228 + 231 + 227
(R)

MCA -- Minimum Circuit Amps 3

MOCP -- Maximum Overcurrent Protection
RLA -- Rated Load Amps 686
=
3
= 229
NO TES:
1. In compliance with NEC (National Electrical Code) requirements Determine maximum deviation from average voltage.
for multimotor and combination load equipment (refer to NE C (AB) 229 - 228 = 1 v
Articles 430 and 440), the overcurrent protective device for the (BC) 231 - 229 = 2 v
unit shall be Power Supply fuse. The CGA (Canadian Gas (AC) 229 - 227 = 2 v
Association) units may be fuse or circuit break er. Maximum deviation is 2 v.
2. Minimum wire size is based on 60 C copper wire. I f other than
60 C wire is used, or if length exceeds wire length in table, Determine percent of voltage imbalance.
determine siz e from NEC.
. 2
3. Unbalanced 3-Phase Supply Voltage % Voltage Imbalance = 100 x
229
Never operate a motor where a phase imbalance in supply volt-
age is greater than 2%. Use the following formula to determine = 0.8%
the percentage of voltage imbalance.
This amount of phase imbalance is satisfactory as it is below the
% Voltage imbalance maximum allowable 2%.
max voltage deviation from average voltage
= 100 x
average voltage IMPORTANT: If the supply voltage phase imbalance is
more than 2%, contact your local electric utility company
immediately.

A06564

25
48VL TYPICAL WIRING SCHEMATIC 208/230--1--60

A08052

26
TYPICAL WIRING SCHEMATIC 208/230--3--60

48VL

A08053

27
48VL TYPICAL WIRING SCHEMATIC 460--3--60

A08010

28
CONTROLS
On the loss of the thermostat call for cooling, 24 V is removed
Operating sequence from both the “Y” and “G” terminals (provided the fan switch is in
Heating -- On a call for heating, terminal W of the thermostat is the “AUTO” position) de--energizing the compressor contactor and
energized, starting the induced--draft motor. When the pressure opening the contacts supplying power to compressor/OFM. After a
switch senses that the induced--draft motor is moving sufficient 60--second delay, the IFM shuts off. If the thermostat fan selector
combustion air, the burner sequence begins. This function is switch is in the “ON” position, the IFM will run continuously.
performed by the integrated gas unit controller (IGC). The indoor NOTE: On units with a Time Guard® II device: Once the
(evaporator)--fan motor is energized 45 sec after flame is
compressor has started and then stopped, it cannot be restarted
established. When the thermostat is satisfied and W is again until 5 minutes have elapsed.
de--energized, the burners stop firing and the indoor (evaporator)
fan motor shuts off after a 45--sec time--off delay. Please note that
the IGC has the capability to automatically reduce the indoor fan
motor on delay and increase the indoor fan motor off delay in the
event of high duct static and/or partially--clogged filter.
Cooling — When the system thermostat calls for cooling, 24 V is
supplied to the “Y” and “G” terminals of the thermostat. This
completes the circuit to the contactor coil (C) and indoor
(evaporator) fan relay (IFR). The normally open contacts of

48VL
energized C close and complete the circuit through compressor
motor (COMP) to outdoor (condenser) fan motor (OFM). Both
motors start instantly. The set of normally open contacts of
energized IFR close and complete the circuit through IFM. The
IFM starts instantly.

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 GUIDE SPECIFICATIONS
Packaged Gas Heating/Electric Cooling Units 2. Fan wheel shall be made from steel, be double--inlet type
Constant Volume Application with forward curved blades with corrosion resistant finish.
Fan wheel shall be dynamically balanced.
HVAC Guide Specifications 3. Condenser fan shall be direct drive propeller type with alu-
Size Range: 1--1/2 to 5 Tons, Nominal Cooling minum blades riveted to corrosion resistant steel spiders, be
40,000 to 130,000 Btuh, dynamically balanced, and discharge air vertically.
Nominal Heating Input D. Compressor:
Carrier Model Number: 48VL 1. Fully hermetic compressors with factory--installed vibration
Part 1 — General isolation.
SYSTEM DESCRIPTION 2. Scroll compressors shall be standard on all units.
Outdoor rooftop mounted, gas heating/electric cooling unit E. Coils:
utilizing a hermetic scroll compressor for cooling duty. Unit
Evaporator and condenser coils shall have aluminum plate fins
shall discharge supply air vertically or horizontally as shown
mechanically bonded to seamless copper tubes with all joints
on contract drawings. Condenser fan/coil section shall have a
brazed (Copper/copper and vinyl--coated construction
draw--thru design with vertical discharge for minimum sound
available as option). Tube sheet openings shall be belled to
levels.
prevent tube wear.
QUALITY ASSURANCE
48VL

F. Heating Section:
A. Unit shall be rated in accordance with ARI Standards 210/240
1. Induced--draft combustion type with energy saving direct
and 270.
spark ignition system and redundant main gas valve.
B. Unit shall be designed in accordance with UL Standard 1995.
2. Induced--draft motors shall provide adequate airflow for
C. Unit shall be manufactured in a facility registered to ISO 9001 combustion.
manufacturing quality standard.
3. The heat exchangers shall be constructed of aluminized steel
D. Unit shall be UL listed and c--UL certified as a total package for corrosion resistance.
for safety requirements.
4. Burners shall be of the in--shot type constructed of
E. Roof curb shall be designed to conform to NRCA Standards. aluminum coated steel.
F. Insulation and adhesives shall meet NFPA 90.1 requirements 5. All gas piping and electric power shall enter the unit cabinet
for flame spread and smoke generation. at a single location.
G. Cabinet insulation shall meet ASHRAE Standard 62.2. G. Refrigerant Components:
DELIVERY, STORAGE AND HANDLING Refrigerant expansion device shall be of the TXV
Unit shall be stored and handled per manufacturer’s (thermostatic expansion valve) type.
recommendations. H. Filters:
Part 2 — Products Filter section shall consist of field--installed, throwaway, 1--in.
EQUIPMENT thick fiberglass filters of commercially available sizes.
A. General: I. Controls and Safeties:
Factory--assembled, single--piece, heating and cooling unit. 1. Unit controls shall be complete with a self--contained low
Contained within the enclosure shall be all factory wiring, piping, voltage control circuit.
controls, refrigerant charge with R--410A refrigerant, and special 2. Compressors shall incorporate a solid--state compressor
features required prior to field start--up. protector that provides reset capability.
B. Unit Cabinet: J. Operating Characteristics:
1. Unit cabinet shall be constructed of phosphated, 1. Unit shall be capable of starting and running at 125_F
zinc--coated, pre--painted steel capable of with--standing 500 (51_C) ambient outdoor temperature per maximum load
hours in salt spray. criteria of ARI Standard 210.
2. Normal service shall be through a single removable cabinet 2. Compressor with standard controls shall be capable of op-
panel. eration down to 40_F (4_C) ambient outdoor temperature.
3. The unit shall be constructed on a rust proof unit base that 3. Units shall be provided with fan time delay to prevent cold
has an externally trapped, integrated sloped drain. air delivery before the heat exchanger warms up.
4. Evaporator fan compartment top surface shall be insulated 4. Unit shall be provided with 30--second fan time delay after
with a minimum 1/2--in. (12.7 mm) thick, flexible the thermostat is satisfied.
fiberglass insulation, coated on the air side and retained by
K. Electrical Requirements:
adhesive and mechanical means. The evaporator wall
sections will be insulated with a minimum semi--rigid foil-- All unit power wiring shall enter the unit cabinet at a single
faced board capable of being wiped clean. Aluminum foil-- location.
faced fiberglass insulation shall be used in the entire indoor L. Motors:
air cavity section. 1. Compressor motors shall be of the refrigerant--cooled type
5. Unit shall have a field--supplied condensate trap. with line--break thermal and current overload protection.
C. Fans: 2. All fan motors shall have permanently lubricated bearings,
1. The evaporator fan shall be a multi--speed, direct--drive, as and inherent, automatic reset, thermal overload protection.
shown on equipment drawings. 3. Condenser fan motor shall be totally enclosed.

30
GUIDE SPECIFICATIONS (CONT) gas at standard altitude (0 to 2000 ft [0 to 610 m] above sea
level).
M. Special Features Available:
9. Low Ambient Package:
1. Louvered Grille:
Shall consist of a solid--state control and condenser coil
Wire grille shall be standard on all units. Louvered grille
temperature sensor for controlling condenser--fan motor op-
shall be available as a factory--installed option to provide
eration, which shall allow unit to operate down to 0_F
hail guard and vandalism protection.
(--18_C) outdoor ambient temperature when properly
2. Coil Options: installed.
Shall include factory--installed optional copper/copper and
10. Filter Rack Kit:
vinyl--coated refrigerant coils.
Shall provide filter mounting for downflow applications.
3. Economizer:
11. Square--To--Round Duct Transitions (018--048):
a. Economizer controls capable of providing free cooling Shall have the ability to convert the supply and return open-
using outside air. ings from rectangular to round.
b. Equipped with low leakage dampers not to exceed 3% 12. Compressor Protection:
leakage, at 1.0 IN. W.C. pressure differential. Solid--state control shall protect compressor by preventing
c. Spring return motor shuts off outdoor damper on power “short cycling.“
failure. 13. Crankcase Heater:
4. Flat Roof Curb: Shall provide anti--floodback protection for low--load cool-

48VL
Curbs shall have seal strip and a wood nailer for flashing ing applications.
and shall be installed per manufacturer’s instructions. 14. High Altitude Propane Conversion Kit:
5. Manual Outdoor Air Damper: Shall consist of all required hardware to convert ot propane
Package shall consist of damper, birdscreen, and rainhood gas heat operation at 2001 to 6000 ft (610 to 1829 m) above
which can be preset to admit outdoor air for year--round sea level.
ventilation. 15. Low NOx:
6. Thermostat: Shall provide NOx reduction to values below 40 nano-
To provide for one--stage heating and cooling in addition grams/joule to meet California emission requirements as
manual or automatic changeover and indoor fan control. shipped from factory.
7. Natural--to--Propane Conversion Kit: 16. Compressor Hard Start Kit (single phase units only):
Shall be complete with all required hardware to convert to Shall provide additional starting torque for single--phase
propane gas operation at 10.0 IN. W.C. manifold pressure. compressors.
8. Propane--to--Natural Conversion Kit
Shall be complete with all hardware to convert to natural

31
48VL

Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 02/08 Catalog No: 48VL---03PD
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: 48VL--- 2PD

32