AH AV Catalog

Advanced Series Unit Heaters
Type AH / AV
Advanced Series Heaters
The Ruffneck Advanced Series heaters are designed
for rugged industrial applications and are available in 37
models from 6,000 to 1,200,000 BTU/hr. With a maximum
operating pressure and temperature rating of 450 psi and
1" or 2 NPT male inlet and

outlet connections for reduced
cost and ease of installation.
1" or 2 300# RF flanges are
available as an option.
650F respectively, the Advanced Series is perfect for

steam, circulating hot water, and glycol heating systems
or liquid cooling applications that include: flash stream
condensers, lube oil coolers, and pump seal coolers, etc.
Epoxy powder coated 14-gauge (0.075")

steel cabinet provides protection and
durability. Special Heresite coatings are
available as an option.
Extruded aluminium louvres provide

two-way directional control of
discharge air.
Bolt-together cabinet offers ease of

maintenance and cleaning of heatexchanger core without disturbing
the heater mounting arrangement or
electrical connections.
Heavy gauge, embossed, high

performance fan blade offers long
life and improved air flow.
Epoxy powder coated,

split fan guard designed
for safety and ease of fan
blade replacement.
Standard motors are UL listed and/or CSA approved

industrial-duty, totally enclosed, 1725 RPM, 56
frame, 1/2 HP. Built for rugged environments, this
motor is also available in explosion-proof models for
hazardous locations.
Epoxy powder coated

bolt-together motor mount
provides exceptional
vibration handling.
TM
The Advanced Series are CRN

registered heat-exchangers.
Maximum operating pressure
of 450 psi and maximum
operating temperature of 650F
provide greater versatility. Steel
headers are 3/16" (0.187")
thick to ensure ruggedness and
long-lasting performance.
63
Type AH / AV
AH - Advanced Horizontal Model
AV - Advanced Vertical Model
The Advanced Horizontal unit heater exchanger can be

customised for your application. The heat exchanger
is comprised of extruded finned tubing in 10, 9 and 5
fins per inch for varying steam conditions and/or where
atmospheric particulate may cause premature fouling of
the heater core. Additionally, the AH can handle more
pressure than the HP and FR.
Ruffnecks Advanced Series unit heaters are designed

for rugged industrial applications meeting the most
demanding service and long life requirements.
While perfect for steam, circulating hot water or glycol
heating systems, the Ruffneck Vertical Throw heaters
are also suitable for a wide range of other heating fluids.
In addition, they can be used for both space heating and
liquid cooling applications.
AH - Advanced Horizontal Tandem Model
The 24" Tandem Advanced Horizontal Series is the largest

unit in our line-up. Rather than expanding the cabinet and
heat exchanger in both height and width, we just doubled
the width to produce this unique model. This side-by-side
arrangement also produces the lowest mounting profile in
its class for a heater of equivalent output.
64
The dual fan arrangement allows for two smaller fans that
can be operated at the standard 1725 RPM. Furthermore,
dual fans provide for output modulation if separate motor
thermostats are used. Separate motor thermostats
produce better control of heating during periods of low
demand by reducing the output of the heater.
TM
Type AH / AV
Extruded Finned Tubing Types

5/8" Tension-Wound
Finned Tubing
10 Fins per Inch
1" Extruded
Finned Tubing
9 Fins per Inch
1" Extruded
Finned Tubing
5 Fins per Inch
Recommended for glycol or water

applications, we offer our standard
5/8" outside diameter (16 gauge,
0.065 wall thickness) carbon
steel tubes with tension wound
aluminum fins (10 per inch). In
most cases, the 5/8" tubing will
be the most economical choice
on a cost per BTU basis.
Select this configuration of extruded

finned tubing for more demanding
applications. It utilizes 1" outside
diameter (14 gauge, 0.083" wall
thickness) carbon steel tubes with
extruded aluminum fins (9perinch).
For the harshest steam applications

and/or where atmospheric
particulate may cause premature
fouling of the heater core, use the
1" outside diameter (10gauge,
0.135" wall thickness) carbon
steel tubes with extruded
aluminum fins (5 per inch).
Advanced Series- General Specifications

Approvals
CRN (Canada) Steam and HVAC liquids only.
Fan
Three blade aluminum, steel spider and hub with 5/8" bore.
Fan Guard
Two piece design with close wire spacing. 3/8" diameter probe will not enter. Epoxycoated
to match cabinet color.
Mounting Holes
9/16" diameter holes, two at top and two at bottom of heater.
Cabinet Material &

Nozzle
14-gauge (0.075") epoxy coated steel.
Motors
CSA and/or UL listed 1725 RPM permanently lubricated ball bearing type with rigid
base. Explosion-proof or general purpose construction. All 50 and 60 hertz standard
voltages are available.
Louvre Blades
Anodized extruded aluminum.
Header Material
3/16" (0.187") carbon steel.
Fluid Connections
1 1/2 or 2 NPT Male or 1 1/2 or 2 300# RF Flanges.
Max. Operating
Press.
450 psi
Max. Operating Temp.
650F
Finned Tubes
5/8" outside diameter (16-gauge, 0.065" wall thickness) carbon steel tubes.
Tension wound aluminum fins @ 10 fins per inch, or
1" outside diameter (14-gauge, 0.083" wall thickness) carbon steel tubes.
Extruded aluminum fins @ 9 fins per inch or 1" outside diameter (10-gauge, 0.135"
wall thickness) carbon steel tubes.
Extruded aluminum fins @ 5 fins per inch.
TM
65
Type AH / AV
AH Series Model Specifications

Base
Model
Air
Delivery*
Air Throw
Motor
at 15 PSI
Requirements
Stream
AH-12A-A_
1150 CFM
28' (8.5 m)
AH-12A-B_
1160 CFM
AH-12A-C1
AIR
MAX.
Shipping
VELOCITY MOUNTING
Weight
(ft/min)
HEIGHT
Tube
Passes
Net
Weight
1/2 HP
1 or 3
102 lbs.
146 lbs.
1441
12
28' (8.5m)
1/2 HP
1 or 3
107 lbs.
151 lbs.
1454
12
1030 CFM
28' (8.5m)
1/2 HP
118 lbs.
164 lbs.
1291
12
AH-16A-A_
1840 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
127 lbs.
174 lbs.
1301
16
AH-16A-B_
1780 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
138 lbs.
177 lbs.
1259
16
AH-16A-C1
1840 CFM
40' (12.2m)
1/2 HP
153 lbs.
199 lbs.
1301
16
AH-20A-A_
2930 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
155 lbs.
209 lbs.
1499
18
AH-20A-B_
2700 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
170 lbs.
209 lbs.
1382
18
AH-20A-C1
3000 CFM
40' (12.2m)
1/2 HP
195 lbs.
242 lbs.
1535
18
AH-24A-A_
3890 CFM
40' (12.2m)
1/2 HP
1, 3, 5 or 7
189 lbs.
247 lbs.
1288
20
AH-24A-B_
3640 CFM
40' (12.2m)
1/2 HP
1, 3, 5 or 7
212 lbs.
251 lbs.
1205
20
AH-24A-C1
3490 CFM
40' (12.2m)
1/2 HP
258 lbs.
293 lbs.
1115
20
AH-24B-A_
7650 CFM
65' (19.8m)
2 HP
1, 3, 5 or 7
313 lbs.
361 lbs.
20
AH-24B-B_
7420 CFM
65' (19.8m)
2 HP
1, 3, 5 or 7
376 lbs.
424 lbs.
20
AH-24B-C1
6690 CFM
65' (19.8m)
2 HP
440 lbs.
488 lbs.
20
See page 59 for model coding.

* at 70F at sea level.
CCI Thermal reserves the right to substitute motors of higher horsepower.
Add 12 lbs. to flanged units.
AV Series Model Specifications

Base
Model
Air
Delivery*
Air Throw
Motor
at 15 PSI
Requirements
Stream
AV-12A-A_
1150 CFM
28' (8.5 m)
AV-12A-B_
1160 CFM
AV-12A-C1
AIR
MAX.
Shipping
VELOCITY
MOUNTING
Weight
(ft/min)
HEIGHT
Tube
Passes
Net
Weight
1/2 HP
1 or 3
102 lbs.
146 lbs.
1441
12
28' (8.5m)
1/2 HP
1 or 3
107 lbs.
151 lbs.
1454
12
1030 CFM
28' (8.5m)
1/2 HP
118 lbs.
164 lbs.
1291
12
AV-16A-A_
1840 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
127 lbs.
174 lbs.
1301
16
AV-16A-B_
1780 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
138 lbs.
177 lbs.
1259
16
AV-16A-C1
1840 CFM
40' (12.2m)
1/2 HP
153 lbs.
199 lbs.
1301
16
AV-20A-A_
2930 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
155 lbs.
209 lbs.
1499
18
AV-20A-B_
2700 CFM
40' (12.2m)
1/2 HP
1, 3 or 5
170 lbs.
209 lbs.
1382
18
AV-20A-C1
3000 CFM
40' (12.2m)
1/2 HP
195 lbs.
242 lbs.
1535
18
AV-24A-A_
3890 CFM
40' (12.2m)
1/2 HP
1, 3, 5 or 7
189 lbs.
247 lbs.
1288
20
AV-24A-B_
3640 CFM
40' (12.2m)
1/2 HP
1, 3, 5 or 7
212 lbs.
251 lbs.
1205
20
AV-24A-C1
3490 CFM
40' (12.2m)
1/2 HP
258 lbs.
293 lbs.
1115
20
See page 69 for model coding.

* at 70F at sea level.
CCI Thermal reserves the right to substitute motors of higher horsepower.
Add 12 lbs. to flanged units.
66
TM
Type AH / AV
AH Physical Dimensions
Dim.
AH-12A
AH-16A
AH-20A
AH-24A
in.
mm.
15 16
401
19 16
503
23 16
605
27 78
707
in.
mm.
19 716
494
2312
596
2712
698
3112
800
in.
mm.
4316
107
4316
107
4316
107
4316
107
in.
mm.
71516
201
7 916
192
7 316
183
6 78
174
in.
mm.
23 58
600
23 58
600
23 58
600
23 58
600
in.
mm.
18 316
462
22 316
564
26 316
665
30 316
766
in.
mm.
9
16
14.3
9
16
14.3
9
16
14.3
9
16
14.3
in.
mm.
2378
606.5
27 78
708.5
3178
809.5
3578
911.5
in.
mm.
1916
39
1916
39
1916
39
1916
39
in.
mm.
8
16
8
16
8
16
8
16
13
13
13
2 or 1 1/2 300# FLANGE

2 or 1 1/2 NPT MALE
Dim.
2 or 1 1/2
300# FLANGE
2 or 1 1/2
NPT MALE
TM
AH-24B
Tandem
in.
mm.
52
1345
in.
mm.
3112
800
in.
mm.
41316
122
in.
mm.
7 716
189
in.
mm.
24316
615
in.
mm.
5814
1480
in.
mm.
9
16
14.3
in.
mm.
36 78
937
in.
mm.
2116
53
in.
mm.
in.
mm.
5912
1512
8
16
67
Type AH / AV
AV Physical Dimensions
Dim.
AV-12A
AV-16A
AV-20A
AV-24A
in.
mm.
151316
401
191316
503
231316
605
27 78
707
in.
mm.
19 716
494
2312
596
2712
698
3112
800
in.
mm.
4316
107
4316
107
4316
107
4316
107
in.
mm.
71516
201
7 916
192
7 316
183
6 78
174
in.
mm.
23 58
600
23 58
600
23 58
600
23 58
600
in.
mm.
18 316
462
22 316
564
26 316
665
30 316
766
in.
mm.
16
14.3
16
14.3
16
14.3
16
14.3
in.
mm.
2378
606.5
27 78
708.5
3178
809.5
3578
911.5
in.
mm.
1916
39
1916
39
1916
39
1916
39
in.
mm.
8
16
8
16
8
16
in.
mm.
111316
300
111316
300
151116
398
151116
398
in.
mm.
41516
122
41516
122
41516
122
41516
122
8
16
2 or 1 1/2 300# FLANGE

2 or 1 1/2 NPT MALE
68
TM
Advanced
Type AH / AV
Series Unit Heaters

Advanced Series Unit

TypeHeaters
AH / AV
BASE MODEL
SERIES
FAN
Model Coding
HEAT EXCHANGER
CABINET
MOTOR
AH - 12A - A 1 A 1 - A 1 - 1 A
SERIES
Horizontal
AH
Vertical
AV
Fan
Motor Electrical
Specifications
Volts
Phase
Hertz
115
60
208
60
208
60
12"
12A
16"
16A
230
60
20"
20A
230
60
24"
24A
460
60
24" tandem
24B
460
60
575
60
220
50
380
50
440
50
A = Standard single fan

B = Standard dual fan
Finned Tubing
Rows
5/8" .065"
10
AL
TW
Tubing
Wall
Thickness
Finning
Motor Enclosure
Fins/
Material Type
inch
1"
.083"
AL
EX
1"
.135"
AL
EX
A
B
C
Totally enclosed
X-proof, groups C, D, E, F, & G
Discharge Type
TW = Tension Wound
EX = Extruded
AL = Aluminum
Tubeside
Passes
2-way aluminum louvres
Nozzle
4-way aluminum louvres
Cabinet Material
1 Pass
3 Passes
5 Passes
7 Passes
,
Note:
Epoxy powder coated carbon steel
Heresite phenolic coated carbon steel
CCI units utilize a standard motor. Specifying any other

O.E.M Motor may result in longer lead times.
Heresite coated exchangers and cabinets: contact factory for quote.
Connections
Louvres and fan blades are also Heresite coated.
1" NPT Male Sch. 40
1" 300# RF flange
Motor designed to be used at rated voltage with tolerances of 15%.
2 NPT Male Sch. 80
Motor may be marked 230 volts, but is suitable for 208 volt operation.
2 300# RF flange
Contact factory for shipping lead time.
Tandem configuration not available on AV models.

460 1 phase motors are only certified for groups D, F & G
Only available in 16 and larger units
Only available in 24 and larger units
Exchanger Coatings
Heat resistant aluminum paint
Heresite phenolic coating
69
1
2
TM
69

AH-16A-A1
5/8" Tension-Wound Finned Tubing

(10 fins/inch)
Operating Pressure
Type AH / AV
Single Pass
Entering Air Temperature (F)
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
194.3
199.0
75.9
184.5
188.9
83.0
165.3
169.3
97.0
146.7
150.2
110.6
128.6
131.7
123.8
119.7
122.6
130.4
111.0
113.7
138.8
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
267.6
290.0
109.2
257.0
278.6
116.6
236.4
256.2
131.0
216.4
234.5
145.0
197.0
213.5
158.6
187.6
203.2
165.3
17802
193.0
171.9
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
305.0
341.7
126.4
294.0
329.4
133.9
272.7
305.5
148.5
252.1
282.3
162.8
232.1
259.9
176.6
222.3
248.9
183.4
212.7
283.1
190.1
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
351.5
412.6
148.0
340.2
399.2
155.6
318.0
373.2
170.6
296.6
348.0
185.1
275.9
323.6
199.3
265.7
311.6
206.2
255.7
299.9
213.0
AH-16A-B1
1" Extruded Finned Tubing

(9 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
182.5
186.8
73.2
173.3
177.4
80.4
155.2
158.9
94.5
137.7
141.0
108.3
120.7
123.5
121.8
112.4
115.0
128.4
104.2
106.6
135.0
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
251.5
272.4
105.4
241.5
261.6
112.8
222.1
240.5
127.4
203.3
220.1
141.6
185.0
200.3
155.4
176.1
190.6
162.2
167.3
181.1
168.9
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
286.7
321.0
122.0
276.4
309.4
129.6
256.3
286.9
144.4
236.9
265.1
158.8
218.0
243.9
172.8
208.8
233.6
179.7
199.8
233.4
186.5
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
330.6
387.7
142.9
319.9
375.1
150.6
299.0
350.5
165.6
278.8
326.8
180.3
259.2
303.8
194.7
249.7
292.6
201.7
240.3
281.5
208.6
AH-16A-C1

(5 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
146.4
149.5
54.1
139.1
142.0
61.9
124.7
127.3
77.5
110.8
113.1
92.8
97.2
99.2
107.8
90.6
92.4
115.3
84.0
85.7
122.6
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
201.4
217.4
78.5
193.5
208.9
86.6
178.2
192.3
102.5
163.3
176.2
118.2
148.8
160.6
133.6
141.7
152.9
141.1
134.7
145.4
148.7
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
229.5
256.0
91.1
221.4
247.0
99.3
205.5
229.3
115.4
190.2
212.1
131.3
175.3
195.5
146.8
168.0
187.3
154.5
160.8
179.3
162.1
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
264.5
309.1
106.9
256.1
299.2
115.2
239.7
280.0
131.6
223.8
261.3
147.7
208.4
243.3
163.5
200.8
234.4
171.3
193.4
225.7
179.0
For 50 Hz power supply, derate output by 10%. For model coding, refer to page 69. Above figures are based on calculations att sea level.
Cond. = Condensate Flow. FAT = Final Air Temperature.
70
TM
Type AH / AV
AH-12A-A1
5/8" Tension-wound Finned Tubing

(10 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
117.6
120.1
72.9
111.6
114.0
80.2
100.1
102.2
94.4
88.8
90.7
108.2
77.9
79.5
121.7
72.5
74.1
128.4
67.3
68.7
134.9
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
162.0
175.1
105.2
155.7
168.2
112.6
143.2
154.7
127.2
131.2
141.7
141.5
119.5
129.0
155.4
113.7
122.8
162.2
108.1
116.7
168.9
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
184.7
206.3
121.8
178.1
198.9
129.4
165.3
184.5
144.2
152.8
170.6
158.7
140.8
157.1
172.8
134.9
150.5
179.7
129.0
143.9
186.5
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
213.0
249.1
142.6
206.2
241.1
150.4
192.8
225.4
165.5
179.9
210.3
180.3
167.4
195.6
194.7
161.2
188.4
201.7
155.2
181.3
208.7
AH-12A-B1

(9 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
110.0
112.2
66.9
104.5
160.6
74.3
93.7
95.6
88.9
83.2
84.9
103.2
73.0
74.5
117.2
68.0
69.4
124.1
63.0
64.3
130.9
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
151.7
163.8
96.8
145.8
157.8
104.4
134.2
144.8
119.4
123.0
132.7
134.1
112.0
120.9
148.4
106.7
115.1
155.4
101.4
109.4
162.4
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
173.1
193.1
112.2
166.9
186.2
119.9
155.0
172.8
135.1
143.4
159.8
150.0
132.1
147.2
164.5
126.6
141.1
171.7
121.1
135.0
178.7
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
199.7
233.3
131.5
193.3
225.8
139.4
180.9
211.2
154.9
168.8
197.1
170.1
157.1
183.4
184.8
151.4
176.7
192.1
145.8
170.1
199.3
AH-12A-C1

(5 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
88.2
89.7
59.1
83.8
85.1
66.8
75.1
76.3
82.0
66.7
67.8
96.9
58.5
59.4
111.5
54.5
55.4
118.7
50.5
51.3
125.9
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
121.4
130.5
85.6
116.7
125.4
93.5
107.4
115.4
109.1
98.4
105.7
124.3
89.6
96.3
139.3
85.3
91.7
146.7
81.1
87.7
154.0
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
138.4
153.7
99.2
133.5
148.3
107.3
123.9
137.6
123.0
114.6
127.2
138.5
105.6
117.2
153.7
101.2
112.3
161.1
96.9
107.4
168.5
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
159.6
185.6
116.3
154.5
179.7
124.5
144.6
168.1
140.6
135.0
156.8
156.3
125.6
145.9
171.7
121.1
140.6
179.3
116.6
135.6
186.8
TM
71

AH-20A-A1

(10 fins/inch)
Operating Pressure
Type AH / AV
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
285.6
293.0
69.4
271.2
278.3
76.8
243.1
249.5
91.3
215.9
221.5
105.4
189.3
194.2
119.2
176.3
180.9
126.0
163.5
167.7
132.7
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
392.5
426.3
100.0
377.1
409.5
107.6
347.0
376.8
122.5
317.9
345.1
137.0
289.5
314.3
151.2
275.7
299.2
158.2
262.0
284.4
165.1
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
447.1
501.9
115.8
431.2
484.0
123.5
400.1
449.1
138.6
370.0
415.3
153.4
340.8
382.5
167.8
326.6
366.4
174.8
312.5
350.6
181.8
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
514.9
605.8
135.5
498.4
586.3
143.4
466.2
548.3
158.8
435.0
511.5
173.9
404.8
475.9
188.6
390.0
458.5
195.8
375.4
441.3
202.9
AH-20A-B1

(9 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
283.4
209.8
74.8
269.0
276.0
81.9
240.8
247.1
96.0
213.5
219.1
109.7
187.1
191.9
123.0
174.1
178.6
129.6
161.4
165.6
136.1
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
390.6
424.1
107.6
375.0
407.2
115.0
344.6
374.1
129.4
315.2
342.2
143.5
286.8
311.3
157.3
272.9
296.2
164.0
259.2
281.3
170.6
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
445.3
499.9
124.5
429.2
481.7
132.0
397.7
446.4
146.7
367.3
412.2
161.0
337.9
379.2
175.0
323.6
363.0
181.8
309.4
347.2
188.6
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
513.5
604.1
145.7
496.7
584.2
153.4
464.0
545.6
168.4
432.4
508.4
183.0
401.8
472.3
197.2
386.9
454.8
204.2
372.2
437.5
211.1
AH-20A-C1

(5 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
224.9
230.2
50.6
213.6
218.7
58.6
191.7
196.2
74.4
170.3
174.3
90.0
149.5
153.0
105.3
139.3
142.5
112.9
129.2
132.2
120.4
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
309.2
334.9
73.7
297.2
321.8
81.9
273.7
296.4
98.1
250.9
271.6
114.0
228.7
247.6
129.7
217.9
235.9
137.4
207.2
224.2
145.0
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
352.2
394.3
85.6
339.8
380.4
93.9
315.6
353.3
110.3
292.2
326.9
126.4
269.4
301.4
142.2
258.2
288.9
150.0
247.2
276.5
157.8
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
405.9
476.0
100.5
393.0
460.9
108.9
368.0
431.4
125.6
343.7
402.8
141.9
320.1
375.1
158.0
308.6
361.6
165.9
297.2
348.2
173.8
72
TM
Type AH / AV
AH-24A-A1

(10 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
390.0
399.6
71.5
370.4
379.4
78.8
332.0
340.0
93.1
294.6
301.8
107.0
258.4
264.6
120.7
240.6
246.4
127.4
223.0
228.4
134.0
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
536.0
581.1
102.8
514.9
558.2
110.3
473.7
513.4
125.1
433.8
470.1
139.4
395.0
428.1
153.4
376.1
407.5
160.3
357.4
387.2
167.1
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
610.5
684.1
119.0
588.7
659.6
126.6
546.2
611.8
141.6
505.0
565.6
156.2
465.0
520.8
170.4
445.4
498.9
177.4
426.2
477.3
184.3
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
703.1
825.5
139.2
680.5
798.8
147.0
636.4
746.9
162.3
593.7
696.6
177.2
552.3
647.9
191.7
532.1
624.1
198.8
512.1
600.7
205.9
AH-24A-B1

(9 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
353.9
362.2
68.4
336.0
343.8
75.7
300.9
307.9
90.3
266.9
273.1
104.5
233.9
239.3
118.3
217.8
222.8
125.2
202.8
206.5
131.9
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
486.6
526.9
98.4
467.3
505.9
106.0
429.6
465.1
120.9
393.2
425.6
135.5
357.9
387.3
149.8
340.6
368.6
156.8
323.6
350.1
163.7
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
554.4
620.5
113.8
534.4
598.0
121.5
495.5
554.4
136.7
457.9
512.2
151.5
421.4
471.3
166.0
403.6
451.4
173.1
386.1
431.7
180.1
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
638.9
749.0
133.2
618.1
724.6
141.1
577.7
677.0
156.5
538.6
631.1
171.6
500.8
586.7
186.4
482.3
565.0
193.6
464.2
543.6
200.8
AH-24A-C1

(5 fins/inch)
Operating Pressure
Single Pass
10
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
290.8
296.9
57.2
276.2
281.9
65.0
247.6
252.7
80.3
219.9
224.4
95.3
192.9
196.8
110.1
179.6
183.3
117.4
166.6
170.0
124.6
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
399.3
431.1
82.7
383.6
414.1
90.7
353.1
381.1
106.4
323.4
349.1
121.8
294.7
318.0
136.9
280.6
302.8
144.4
266.7
287.7
151.8
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
454.6
507.3
95.9
438.5
489.2
103.9
407.0
453.9
119.9
376.5
419.8
135.5
346.9
386.7
150.8
332.4
370.5
158.3
318.1
354.6
165.8
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
523.6
611.9
112.3
506.9
592.3
120.5
474.2
554.0
136.7
442.7
516.9
152.6
412.0
481.0
168.1
397.0
463.5
175.8
382.3
446.2
183.4
TM
73

AH-24B-A1

(10 fins/inch)
Operating Pressure
10
Type AH / AV
Single Pass

0
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
694.1
713.3
63.8
659.3
677.5
71.3
591.1
607.4
86.2
524.8
539.3
100.8
460.4
473.1
115.0
428.8
440.6
122.1
397.6
408.5
129.0
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
951.4
1035.0
91.9
914.1
994.4
99.7
841.3
915.2
114.9
770.7
838.3
129.9
702.2
763.7
144.6
668.6
727.1
151.8
635.4
691.0
158.9
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
1082.5
1217.6
106.3
1044.1
1174.3
114.2
969.1
1089.8
129.7
896.4
1007.9
144.9
825.8
928.5
159.8
791.3
889.6
167.1
757.2
851.2
174.3
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
1245.6
1468.2
124.4
1205.7
1421.1
132.5
1128.1
1329.4
148.3
1052.8
1240.5
163.8
979.9
1154.4
178.9
944.2
1112.3
186.4
909.0
1070.7
193.7
AH-24B-B1

(9 fins/inch)
Operating Pressure
10
Single Pass

0
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
637.6
654.9
59.7
605.5
621.9
67.4
542.8
557.4
82.5
481.8
494.8
97.4
422.6
434.0
112.0
393.6
404.2
119.2
364.9
374.7
126.3
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
874.3
950.4
86.2
839.9
913.0
94.1
772.9
840.1
109.6
707.9
769.4
124.8
644.8
700.8
139.8
614.0
667.2
147.1
583.5
634.1
154.4
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
994.9
1118.2
99.8
959.5
1078.3
107.8
890.4
1000.5
123.5
823.5
925.2
139.0
758.5
852.2
154.1
726.8
816.4
161.6
695.5
781.2
169.0
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
1147.2
1348.7
116.8
1108.4
1305.3
125.0
1036.8
1220.8
141.0
967.5
1139.0
156.7
900.3
1059.8
172.1
867.5
1021.1
179.7
835.1
982.9
187.2
AH-24B-C1

(5 fins/inch)
Operating Pressure
10
Single Pass

0
20
40
60
70
80
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
499.4
511.8
50.3
474.3
486.1
58.3
425.3
435.8
74.1
377.7
387.1
89.7
331.4
339.6
105.5
308.7
316.3
112.6
286.3
293.4
120.1
50
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
683.6
741.3
73.0
656.8
712.2
81.2
604.7
655.6
97.4
554.1
600.7
113.3
504.9
547.4
128.9
480.9
521.2
136.7
457.1
495.5
144.4
100
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
777.5
871.5
84.6
750.5
840.6
92.9
696.3
780.3
109.3
644.2
721.9
125.4
593.7
665.2
141.3
569.0
637.4
149.1
544.6
610.1
156.9
200
Output (MBH)
Cond. (lbs./hr.)
FAT (F)
894.4
1050.4
99.1
865.9
1016.9
107.6
810.4
951.5
124.2
756.6
888.1
140.6
704.4
826.8
156.7
678.9
796.7
164.6
653.8
767.1
172.5
74
TM
Type AH / AV
5/8" Tension-Wound Finned Tubing (10 fins/inch)
50% Ethylene Glycol 60F EAT
Entering Glycol Temperature

180F
Output Flow
MBH
USGPM
FAT
F
200F
PD
PSI
Output Flow
MBH
USGPM
220F
FAT
F
PD
PSI
Output Flow
MBH
USGPM
FAT
F
PD
PSI
Model
T F
AH-12A-A1*
10
20
40
17.6
13.0
8.9
3.69
1.35
0.45
73.3
69.7
66.4
0.00
0.00
0.00
21.5
16.1
11.2
4.45
1.65
0.56
76.3
72.0
68.1
0.00
0.00
0.00
33.6
19.3
13.6
6.95
1.95
0.68
85.8
74.4
69.9
0.01
0.00
0.00
10
20
40
43.0
19.0
13.3
9.26
2.00
0.69
93.7
74.4
69.9
0.31
0.02
0.00
56.5
34.0
16.7
12.00
3.59
0.86
104.5
86.3
72.5
0.52
0.05
0.00
68.1
48.8
20.4
14.30
5.12
1.04
113.7
98.1
75.3
0.73
0.10
0.01
10
20
40
32.1
24.0
15.8
6.82
2.53
0.82
75.4
71.4
67.3
0.01
0.00
0.00
54.3
29.6
20.7
11.50
3.09
1.06
86.4
74.1
69.6
0.01
0.00
0.00
80.0
35.4
25.1
16.80
3.65
1.28
99.2
76.9
71.7
0.03
0.00
0.00
10
20
40
80.3
48.6
24.3
17.40
5.23
1.29
99.5
83.6
71.5
0.74
0.08
0.01
99.2
72.5
30.6
21.20
7.73
1.61
109.0
95.5
74.6
1.08
0.16
0.01
118.1
97.3
37.2
24.90
10.30
1.93
118.5
107.9
77.7
1.48
0.27
0.01
10
20
40
88.0
69.0
28.6
19.10
7.46
1.53
103.4
93.8
73.7
3.96
0.65
0.03
106.7
90.9
49.5
22.80
9.73
2.63
112.8
104.8
84.0
5.60
1.08
0.09
125.3
109.9
74.5
26.50
11.60
3.94
122.2
114.3
96.4
7.46
1.52
0.19
10
20
40
61.1
40.7
25.0
13.10
4.34
1.32
78.7
72.3
67.4
0.01
0.00
0.00
101.6
50.1
35.0
21.70
5.28
1.83
91.3
75.2
70.4
0.03
0.00
0.00
134.4
59.9
43.1
28.40
6.24
2.23
101.6
78.1
72.9
0.05
0.00
0.00
10
20
40
123.0
86.9
40.8
26.70
9.41
2.19
98.2
86.8
72.3
1.09
0.15
0.01
150.4
118.5
51.3
32.20
12.70
2.72
106.8
96.7
75.5
1.56
0.26
0.02
177.7
151.7
79.8
37.60
16.07
4.21
115.5
107.2
84.4
3.09
0.41
0.03
10
20
40
132.3
111.6
49.4
28.70
12.10
2.66
101.2
94.6
75.0
5.58
1.07
0.06
159.4
139.3
91.1
34.20
14.90
4.89
109.7
103.3
88.0
7.77
1.59
0.19
186.4
166.8
123.6
39.50
17.70
6.57
118.2
112.0
98.2
10.30
2.18
0.33
10
20
40
110.2
60.0
35.1
23.70
6.37
1.83
85.4
73.6
67.8
0.03
0.00
0.00
156.3
73.8
49.2
33.30
7.75
2.56
96.3
76.7
71.0
0.06
0.00
0.00
205.1
87.7
64.0
43.20
9.01
3.30
107.8
79.9
74.3
0.09
0.01
0.00
10
20
40
173.0
131.7
59.8
37.40
14.20
3.20
100.4
90.5
73.6
1.68
0.27
0.02
210.1
177.5
74.0
44.90
19.00
3.91
109.1
101.3
76.8
2.37
0.46
0.03
247.1
215.4
137.5
52.20
22.80
7.26
117.9
110.3
91.7
3.15
0.64
0.08
10
20
40
183.8
158.3
93.2
39.80
17.20
5.04
103.0
96.9
81.4
8.39
1.68
0.17
220.5
195.7
139.6
47.20
21.00
7.48
111.7
105.7
92.3
11.60
2.45
0.35
233.0
187.1
24.70
9.94
114.5
103.5
3.32
0.59
10
20
40
167.2
118.1
18.10
6.41
99.0
87.3
4.98
0.69
204.3
163.6
21.90
8.80
107.8
98.0
7.09
1.25
241.3
201.6
25.60
10.70
116.5
107.0
9.48
1.80
10
20
40
286.4
173.8
69.2
62.10
18.80
3.69
94.0
80.5
67.9
0.25
0.03
0.00
352.4
260.1
96.7
75.60
27.90
5.12
101.9
90.8
71.2
0.36
0.06
0.00
418.1
335.6
156.0
88.60
35.60
8.22
109.9
99.8
78.2
0.48
0.09
0.01
10
20
40
330.2
290.2
194.0
71.70
31.60
10.60
99.3
94.5
82.9
7.73
1.67
0.22
394.6
355.7
269.8
84.70
38.30
14.60
107.1
102.3
91.9
10.40
2.35
0.39
458.8
420.8
348.2
97.30
44.70
18.60
114.9
110.2
101.4
13.50
3.12
0.61
10
20
40
308.7
239.5
33.60
13.10
96.7
88.3
8.14
1.41
373.4
312.2
40.20
16.90
104.5
97.1
11.12
2.23
437.9
378.3
46.60
20.20
112.3
105.0
14.70
3.07
10
20
40
261.0
14.30
90.9
4.35
326.9
17.70
98.9
6.37
392.4
21.00
106.7
8.65
One pass
AH-12A-A3
Three pass
AH-16A-A1*
One pass
AH-16A-A3
Three pass
AH-16A-A5
Five pass
AH-20A-A1*
One pass
AH-20A-A3
Three pass
AH-20A-A5
Five pass
AH-24A-A1*
One pass
AH-24A-A3
Three pass
AH-24A-A5
Five pass
AH-24A-A7
Seven pass
AH-24B-A1*
One pass
Tandem
AH-24B-A3
Three pass
Tandem
AH-24B-A5
Five pass
Tandem
AH-24B-A7
Seven pass
Tandem
* Single-pass heaters are not recommended for liquid service. In many cases, a smaller multi-pass model would be a
more economical choice. For 50 Hz power supply, derate output by 10%. For complete model coding, refer to page 69.
Above figures are based on calculations at sea level.
TM
75
Type AH / AV
1" Extruded Finned Tubing (9 fins/inch)

50% Ethylene Glycol 60F EAT
Entering Glycol Temperature

180F
Output Flow
MBH
USGPM
FAT
F
200F
PD
PSI
Output Flow
MBH
USGPM
FAT
F
220F
PD
PSI
Output Flow
MBH
USGPM
FAT
F
PD
PSI
Model
T F
AH-12A-B1*
10
20
40
9.1
6.6
4.4
1.83
0.64
0.21
66.6
64.6
62.9
0.00
0.00
0.00
11.2
8.2
5.6
2.22
0.78
0.26
68.0
65.6
63.7
0.00
0.00
0.00
13.3
9.7
6.8
2.61
0.93
0.31
69.6
66.8
64.5
0.00
0.00
0.00
10
20
40
26.7
10.1
6.8
5.68
1.03
0.34
80.4
67.3
64.8
0.05
0.00
0.00
42.0
12.5
8.6
8.88
1.25
0.42
92.4
69.1
66.0
0.11
0.00
0.00
53.1
14.6
10.5
11.10
1.47
0.51
101.2
70.6
67.4
0.17
0.00
0.00
10
20
40
17.4
12.6
8.4
3.61
1.27
0.41
68.4
65.9
63.8
0.00
0.00
0.00
21.4
15.5
10.6
4.37
1.56
0.51
70.3
67.3
64.8
0.00
0.00
0.00
25.4
18.6
12.9
5.13
1.84
0.62
72.3
68.8
65.9
0.00
0.00
0.00
10
20
40
57.2
19.2
13.0
12.30
2.01
0.66
88.9
69.3
66.1
0.13
0.00
0.00
78.6
32.9
16.4
16.80
3.44
0.83
99.9
76.2
67.8
0.23
0.01
0.00
96.7
59.6
20.0
20.40
6.24
1.00
109.2
89.9
69.5
0.34
0.03
0.00
10
20
40
72.5
44.1
15.8
15.70
4.73
0.82
96.8
82.1
67.6
0.91
0.09
0.00
90.3
68.6
20.0
19.30
7.31
1.03
106.0
94.7
69.6
1.37
0.21
0.00
108.1
86.9
24.3
22.80
9.16
1.24
115.2
104.1
71.7
1.91
0.32
0.01
10
20
40
29.2
21.0
14.0
6.14
2.18
0.71
69.4
66.7
64.3
0.00
0.00
0.00
36.1
26.3
18.0
7.430
2.66
0.88
71.5
68.2
65.4
0.00
0.00
0.00
80.3
31.1
21.5
16.80
3.15
1.06
86.5
69.9
66.6
0.01
0.00
0.00
10
20
40
102.9
32.1
21.7
22.20
3.37
1.13
94.3
70.4
66.9
0.28
0.01
0.00
130.8
79.3
27.5
28.00
8.45
1.42
103.8
86.3
68.7
0.43
0.04
0.00
158.6
119.2
33.4
33.50
12.60
1.71
113.2
99.7
70.6
0.62
0.09
0.00
10
20
40
118.6
83.0
26.4
25.70
8.98
1.39
99.7
87.6
68.5
1.65
0.22
0.01
146.0
116.5
33.4
31.30
12.50
1.74
109.0
98.9
70.7
2.43
0.41
0.01
173.3
144.6
78.1
36.70
15.30
4.12
118.3
108.4
85.7
3.32
0.60
0.05
10
20
40
43.6
31.9
21.4
9.14
3.29
1.08
70.4
67.5
64.9
0.00
0.00
0.00
79.4
39.4
27.1
16.70
4.02
1.35
79.3
69.2
66.2
0.01
0.00
0.00
127.2
47.2
32.9
26.60
4.76
1.63
91.8
71.1
67.5
0.01
0.00
0.00
10
20
40
136.2
74.3
32.7
29.40
7.94
1.70
93.7
78.1
67.7
0.35
0.03
0.00
170.4
117.7
41.3
36.40
12.50
2.13
102.3
88.9
69.7
0.53
0.07
0.00
204.5
162.3
50.2
43.10
17.10
2.56
110.8
100.1
71.8
0.74
0.12
0.00
10
20
40
152.5
119.9
39.2
33.00
13.00
2.06
97.8
89.6
69.3
1.99
0.33
0.01
186.1
154.3
73.8
39.80
16.50
3.90
106.3
98.2
77.9
2.86
0.52
0.03
219.7
188.7
119.7
46.40
19.90
6.31
114.7
106.8
89.3
3.86
0.75
0.08
10
20
40
160.2
133.1
65.9
34.60
14.40
3.53
99.8
92.9
76.0
5.90
1.07
0.07
193.5
167.2
109.4
41.40
17.90
5.84
108.1
101.4
86.8
8.34
1.63
0.19
226.9
201.2
153.1
47.90
21.30
8.11
116.5
110.0
97.8
11.25
2.28
0.35
10
20
40
202.8
81.3
44.1
43.90
8.66
2.30
84.7
69.7
65.1
0.04
0.00
0.00
277.9
117.0
65.6
59.50
12.40
3.42
93.9
74.0
67.7
0.07
0.00
0.00
339.4
214.9
85.3
71.80
22.70
4.41
101.5
86.0
70.0
0.10
0.01
0.00
10
20
40
282.8
231.7
81.9
61.40
25.20
4.39
94.6
88.3
69.7
1.81
0.33
0.01
342.5
292.7
176.6
73.40
31.40
9.47
102.0
95.8
81.4
2.53
0.50
0.05
402.1
353.6
249.3
85.20
37.50
13.30
109.4
103.3
90.3
3.36
0.70
0.10
10
20
40
298.9
259.7
173.1
64.90
28.20
9.42
96.6
91.7
81.0
8.94
1.82
0.23
358.1
319.9
247.4
76.80
34.30
13.30
104.0
99.2
90.1
12.35
2.63
0.44
379.9
309.1
40.30
16.50
106.6
97.8
3.55
0.64
10
20
40
273.0
208.3
29.70
11.40
93.4
85.4
5.33
0.86
332.7
269.7
35.80
14.60
100.8
92.9
7.56
1.36
392.2
330.7
41.70
17.60
108.2
100.5
10.15
1.95
One pass
AH-12A-B3
Three pass
AH-16A-B1*
One pass
AH-16A-B3
Three pass
AH-16A-B5
Five pass
AH-20A-B1*
One pass
AH-20A-B3
Three pass
AH-20A-B5
Five pass
AH-24A-B1*
One pass
AH-24A-B3
Three pass
AH-24A-B5
Five pass
AH-24A-B7
Seven pass
AH-24B-B1*
One pass
Tandem
AH-24B-B3
Three pass
Tandem
AH-24B-B5
Five pass
Tandem
AH-24B-B7
Seven pass
Tandem
76
TM
Type AH / AV
5/8" Tension-wound Finned Tubing (10 fins/inch)
Water 60F EAT
Entering Water Temperature

180F
Output Flow
MBH
USGPM
FAT
F
200F
PD
PSI
Output Flow
MBH
USGPM
220F
FAT
F
PD
PSI
Output Flow
MBH
USGPM
FAT
F
PD
PSI
12.40
3.55
0.97
110.6
88.7
75.7
0.02
0.00
0.00
76.1
67.0
46.0
14.70
6.48
2.21
120.3
112.8
95.8
0.69
0.14
0.02
0.03
0.00
0.00
113.0
81.7
38.0
21.90
7.89
1.80
115.9
100.0
78.1
0.04
0.01
0.00
114.5
107.8
92.7
0.98
0.20
0.03
128.5
115.6
87.9
25.00
11.20
4.26
123.8
117.2
103.2
1.32
0.28
0.04
22.20
10.10
4.08
116.5
111.2
101.2
4.73
1.02
0.18
132.2
122.1
102.7
25.70
11.90
4.98
125.7
120.5
110.7
6.30
1.39
0.26
144.4
103.4
51.4
28.10
10.00
2.47
104.9
91.9
75.6
0.04
0.01
0.00
171.6
134.6
63.2
33.40
13.10
3.02
113.5
101.7
79.2
0.06
0.01
0.00
0.95
0.19
0.02
163.4
146.4
109.2
31.90
14.30
5.31
111.0
105.6
93.7
1.34
0.28
0.04
190.2
173.5
142.0
37.00
16.90
6.90
119.5
114.1
104.1
1.79
0.39
0.07
104.0
99.6
91.2
4.58
0.98
0.17
168.0
154.4
128.2
32.80
15.10
6.25
112.5
108.1
99.8
6.37
1.41
0.26
194.6
181.3
155.6
37.90
17.60
7.57
120.9
116.6
108.4
8.45
1.91
0.37
32.40
11.00
2.82
98.7
86.2
73.4
0.04
0.01
0.00
202.9
156.3
75.2
39.50
15.20
3.59
107.4
96.3
77.1
0.07
0.01
0.00
239.9
196.9
92.2
46.60
19.10
4.40
116.2
105.9
81.0
0.09
0.02
0.00
188.8
167.3
118.7
36.90
16.30
5.77
104.2
99.0
87.4
1.42
0.30
0.04
225.2
204.1
159.0
43.90
19.90
7.73
112.8
107.7
96.9
1.98
0.43
0.07
261.6
240.9
201.3
50.80
23.40
9.77
121.4
116.4
106.9
2.63
0.59
0.11
10
20
40
194.4
176.9
142.8
38.00
17.30
6.97
105.5
101.3
93.2
6.73
1.47
0.26
230.6
213.4
180.0
44.90
20.80
8.76
114.1
110.0
102.0
9.32
2.09
0.40
266.7
249.9
217.2
51.80
24.30
10.60
122.7
118.6
110.8
12.30
2.82
0.57
10
20
40
181.5
150.6
17.70
7.35
102.4
95.0
4.13
0.77
217.8
187.7
21.20
9.14
111.0
103.8
5.85
1.16
254.2
224.7
24.70
10.91
119.7
112.6
7.85
1.62
10
20
40
323.2
278.4
155.7
63.30
27.30
7.58
98.5
93.0
78.3
0.22
0.05
0.00
387.5
343.6
239.4
75.70
33.60
11.70
106.2
100.9
88.3
0.30
0.07
0.01
451.7
408.7
313.4
88.00
39.80
15.20
114.0
108.7
97.1
0.40
0.09
0.02
10
20
40
345.6
317.3
261.4
67.80
31.10
12.80
101.2
97.8
91.0
5.92
1.35
0.26
409.2
381.4
326.7
80.00
37.30
16.00
108.9
105.5
98.8
8.09
1.89
0.39
472.7
445.4
391.8
92.20
43.40
19.10
116.6
113.2
106.7
10.60
2.51
0.54
10
20
40
326.7
277.8
32.00
13.60
98.9
93.0
6.26
1.26
390.5
342.7
38.20
16.80
106.6
100.8
8.72
1.83
454.2
407.3
44.30
19.90
114.3
108.6
11.50
2.50
10
20
40
285.5
14.00
93.9
3.48
350.2
17.10
101.7
5.03
414.6
20.20
109.5
6.88
Model
T F
AH-12A-A1*
10
20
40
37.6
18.9
13.2
7.29
1.79
0.61
89.4
74.4
69.8
0.01
0.00
0.00
50.4
23.6
16.9
9.75
2.23
0.79
99.5
78.0
72.7
0.01
0.00
0.00
64.3
37.2
20.9
10
20
40
53.7
42.5
18.6
10.50
4.13
0.88
102.3
93.3
74.2
0.35
0.06
0.00
64.9
55.6
31.7
12.60
5.39
1.52
111.3
103.7
84.4
0.51
0.10
0.01
10
20
40
72.3
34.2
24.0
14.10
3.28
1.14
95.5
76.4
71.4
0.02
0.00
0.00
94.2
58.2
30.8
18.30
5.62
1.46
106.5
88.3
74.7
10
20
40
91.7
78.2
44.0
17.90
7.63
2.13
105.3
98.5
81.3
0.69
0.13
0.01
110.1
96.9
67.0
21.40
9.43
3.25
10
20
40
95.6
85.1
62.2
18.70
8.31
3.03
107.3
102.0
90.4
3.37
0.70
0.10
113.9
103.6
83.8
10
20
40
117.1
68.1
40.3
22.90
6.61
1.93
96.3
72.2
72.2
0.03
0.00
0.00
10
20
40
136.7
119.3
78.4
26.70
11.70
3.82
102.5
97.0
84.1
10
20
40
141.4
127.6
100.7
27.70
12.50
4.92
10
20
40
165.9
113.2
59.0
10
20
40
One pass
AH-12A-A3
Three pass
AH-16A-A1*
One pass
AH-16A-A3
Three pass
AH-16A-A5
Five pass
AH-20A-A1*
One pass
AH-20A-A3
Three pass
AH-20A-A5
Five pass
AH-24A-A1*
One pass
AH-24A-A3
Three pass
AH-24A-A5
Five pass
AH-24A-A7
Seven pass
AH-24B-A1*
One pass
Tandem
AH-24B-A3
Three pass
Tandem
AH-24B-A5
Five pass
Tandem
AH-24B-A7
Seven pass
Tandem
TM
77
Type AH / AV
1" Extruded Finned Tubing (9 fins/inch)

Water 60F EAT
Entering Water Temperature

180F
Output Flow
MBH
USGPM
FAT
F
200F
PD
PSI
Output Flow
MBH
USGPM
220F
FAT
F
PD
PSI
Output Flow
MBH
USGPM
FAT
F
PD
PSI
Model
T F
AH-12A-B1*
10
20
40
13.8
10.2
6.8
2.55
0.93
0.30
70.2
67.4
64.8
0.00
0.00
0.00
31.5
12.8
8.8
6.03
1.17
0.39
84.1
69.3
66.2
0.00
0.00
0.00
44.3
15.6
10.9
8.48
1.43
0.49
94.1
71.4
67.7
0.00
0.00
0.00
10
20
40
44.5
28.3
10.3
8.64
2.72
0.47
94.6
81.7
67.5
0.09
0.01
0.00
55.2
42.4
13.2
10.70
4.09
0.61
103.0
92.8
69.7
0.14
0.02
0.00
65.9
53.3
18.1
12.70
5.13
0.84
111.5
101.4
73.4
0.20
0.03
0.00
10
20
40
46.8
19.3
13.0
9.06
1.82
0.60
83.5
69.4
66.1
0.00
0.00
0.00
67.2
24.3
16.8
13.00
2.28
0.77
93.9
71.8
68.0
0.00
0.00
0.00
89.2
29.4
20.8
17.20
2.70
0.96
105.3
74.3
69.9
0.01
0.00
0.00
10
20
40
78.3
60.5
19.5
15.30
5.88
0.92
99.8
90.6
69.5
0.17
0.03
0.00
95.7
78.2
32.5
18.60
7.59
1.55
108.8
99.7
76.0
0.25
0.04
0.00
113.2
96.0
57.3
22.00
9.29
2.75
117.9
108.8
88.7
0.35
0.07
0.01
10
20
40
84.5
70.9
40.4
16.50
69.10
1.95
103.0
96.0
80.2
0.91
0.17
0.01
101.8
88.5
60.6
19.80
8.60
2.93
112.0
105.0
90.5
1.31
0.25
0.03
119.1
106.1
81.9
23.10
10.30
3.96
121.0
114.1
101.5
1.78
0.36
0.06
10
20
40
87.6
32.3
21.7
17.10
3.07
1.01
89.1
70.4
66.9
0.01
0.00
0.00
120.9
41.0
28.0
23.50
3.89
1.31
100.4
73.3
68.9
0.01
0.00
0.00
148.6
88.4
34.7
28.80
8.52
1.62
109.8
89.2
71.1
0.02
0.00
0.00
10
20
40
126.0
101.6
31.7
24.60
9.92
1.52
102.2
93.9
70.3
0.30
0.05
0.00
153.0
129.0
74.8
29.80
12.60
3.62
111.4
103.2
84.7
0.44
0.08
0.01
179.9
156.4
106.7
35.00
15.20
5.16
120.6
112.5
95.4
0.60
0.12
0.01
10
20
40
134.1
115.3
75.4
26.20
11.30
3.67
105.0
98.6
85.0
1.54
0.30
0.03
160.8
142.5
108.1
31.40
13.90
5.26
114.1
107.8
96.0
2.20
0.44
0.07
187.5
169.6
135.8
36.50
16.50
6.59
123.2
117.0
105.4
2.97
0.62
0.10
10
20
40
126.2
47.5
32.5
24.50
4.50
1.51
91.2
71.4
67.6
0.01
0.00
0.00
160.0
90.1
41.8
31.10
8.65
1.95
99.6
81.9
69.9
0.01
0.00
0.00
193.9
132.5
51.8
37.50
12.70
2.41
108.1
92.5
72.2
0.02
0.00
0.00
10
20
40
160.2
133.5
68.2
31.30
13.00
3.28
99.8
93.0
76.6
0.35
0.06
0.00
193.3
167.1
109.6
37.60
16.20
5.29
108.1
101.4
86.9
0.51
0.10
0.01
226.5
200.8
153.3
43.90
19.50
7.40
116.4
109.9
97.8
0.69
0.14
0.02
10
20
40
168.5
147.8
108.8
32.90
14.40
5.29
101.9
96.6
86.8
1.77
0.35
0.05
201.4
181.1
142.7
39.20
17.60
6.92
110.1
105.0
95.2
2.50
0.52
0.09
234.3
214.4
176.7
45.50
20.80
8.55
118.4
113.3
103.7
3.35
0.72
0.13
10
20
40
172.4
154.6
120.3
33.70
15.10
5.86
102.9
98.3
89.7
5.01
1.04
0.17
205.2
187.7
154.1
40.00
18.30
7.48
111.1
106.7
98.1
7.02
1.51
0.27
238.0
220.8
187.8
46.20
21.40
9.10
119.4
115.0
106.6
9.37
20.7
0.39
10
20
40
272.2
203.2
80.9
53.30
19.80
3.89
93.3
84.7
69.6
0.05
0.01
0.00
331.8
275.0
112.1
64.80
26.80
5.39
100.7
93.6
73.4
0.07
0.01
0.00
391.3
335.5
204.3
76.20
32.60
9.88
108.1
101.1
84.7
0.10
0.02
0.00
10
20
40
306.5
273.1
209.4
60.00
26.70
10.20
97.6
93.4
85.5
1.51
0.32
0.05
365.1
332.4
269.8
71.30
32.50
13.20
104.8
100.7
92.9
2.10
0.46
0.08
243.7
391.6
330.2
82.50
38.10
16.10
112.1
108.1
100.4
2.79
0.63
0.12
10
20
40
314.7
287.5
234.1
61.70
28.20
11.50
98.6
95.2
88.6
7.13
1.56
0.28
373.1
346.3
294.0
72.90
33.80
14.40
105.8
102.5
95.9
9.86
2.23
0.34
431.5
405.2
353.9
84.00
39.50
17.20
113.1
109.8
103.4
13.0
3.00
0.61
10
20
40
294.2
245.8
28.80
12.00
96.0
90.0
4.39
0.82
352.9
305.5
34.50
14.90
103.3
97.4
6.21
1.23
411.5
365.0
40.10
17.80
110.6
104.8
8.31
1.72
One pass
AH-12A-B3
Three pass
AH-16A-B1*
One pass
AH-16A-B3
Three pass
AH-16A-B5
Five pass
AH-20A-B1*
One pass
AH-20A-B3
Three pass
AH-20A-B5
Five pass
AH-24A-B1*
One pass
AH-24A-B3
Three pass
AH-24A-B5
Five pass
AH-24A-B7
Seven pass
AH-24B-B1*
One pass
Tandem
AH-24B-B3
Three pass
Tandem
AH-24B-B5
Five pass
Tandem
AH-24B-B7
Seven pass
Tandem
* Single-pass heaters are not recommended for liquid service. In many cases, a smaller multi-pass model would
be a more economical choice. For 50 Hz power supply, derate output by 10%. For complete model coding, refer
to page 69. Above figures are based on calculations at sea level.
78
TM

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Advanced Series Unit Heaters

1" or 2 NPT male inlet and

650F respectively, the Advanced Series is perfect for

Epoxy powder coated 14-gauge (0.075")

Extruded aluminium louvres provide

Bolt-together cabinet offers ease of

Heavy gauge, embossed, high

Epoxy powder coated,

Standard motors are UL listed and/or CSA approved

Epoxy powder coated

The Advanced Series are CRN

Advanced Series Unit Heaters

AH - Advanced Horizontal Model

AV - Advanced Vertical Model

The Advanced Horizontal unit heater exchanger can be

Ruffnecks Advanced Series unit heaters are designed

AH - Advanced Horizontal Tandem Model

The 24" Tandem Advanced Horizontal Series is the largest

Advanced Series Unit Heaters

Extruded Finned Tubing Types

Recommended for glycol or water

Select this configuration of extruded

For the harshest steam applications

Advanced Series- General Specifications

CRN (Canada) Steam and HVAC liquids only.

9/16" diameter holes, two at top and two at bottom of heater.

Cabinet Material &

14-gauge (0.075") epoxy coated steel.

Anodized extruded aluminum.

3/16" (0.187") carbon steel.

1 1/2 or 2 NPT Male or 1 1/2 or 2 300# RF Flanges.

Max. Operating Temp.

Advanced Series Unit Heaters

AH Series Model Specifications

See page 59 for model coding.

AV Series Model Specifications

See page 69 for model coding.

Advanced Series Unit Heaters

2 or 1 1/2 300# FLANGE

Advanced Series Unit Heaters

2 or 1 1/2 300# FLANGE

Advanced Series Unit

A = Standard single fan

X-proof, groups C, D, E, F, & G

2-way aluminum louvres

4-way aluminum louvres

Epoxy powder coated carbon steel

Heresite phenolic coated carbon steel

CCI units utilize a standard motor. Specifying any other

Heresite coated exchangers and cabinets: contact factory for quote.

Louvres and fan blades are also Heresite coated.

1" NPT Male Sch. 40

1" 300# RF flange

Motor designed to be used at rated voltage with tolerances of 15%.

2 NPT Male Sch. 80

Contact factory for shipping lead time.

Tandem configuration not available on AV models.

Heresite phenolic coating

Advanced Series Unit Heaters

Advanced Series Unit Heaters

Advanced Series Unit Heaters

Advanced Series Unit Heaters

Advanced Series Unit Heaters

Advanced Series Unit Heaters

Advanced Series Unit Heaters

Advanced Series Unit Heaters