EB-EW-USER-Rev B

USER MANUAL
HOT WATER HEATING BOILERS
Domestic Water Heaters
150,000 - 300,000 Btu/hr MODELS LOW LEAD CONTENT

FIG. 1 Front View FIG. 2 Rear View

 WARNING  OWNER WARNING

If the information in this manual is not followed exactly, The information contained in this manual is intended
a fire or explosion may result causing property damage, for use by qualified professional installers, service
personal injury or loss of life. technicians or gas suppliers. Consult your local expert
This appliance MUST NOT be installed in any location for proper installation or service procedures.
where gasoline or flammable vapors are likely to be present,
unless the installation is such to eliminate the probable
ignition of gasoline or flammable vapors. DO NOT

WHAT TO DO IF YOU SMELL GAS Do not use this appliance if any part has been under water.
The possible damage to a flooded appliance can be exten-
sive and present numerous safety hazards. Any appliance
• Do not try to light any appliance. that has been under water must be replaced.
• Do not touch any electric switch: do not use any phone
in your building.
• Immediately call your gas supplier from a neighbor’s  WARNING
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
Should overheating occur or the gas supply fail to shut off,
department.
DO NOT turn off or disconnect the electrical supply to
the pump. Instead, shut off the gas supply at a location
Installation and service must be performed by a
external to the appliance.
qualified installer, service agency or the gas
supplier.
 LIGHTING INSTRUCTIONS
FOR YOUR SAFETY,
READ BEFORE
OPERATING

 WARNING
If you do not follow these instructions exactly, a fire or
explosion may result causing property damage, personal
injury or loss of life. FIG. 3 Combination Gas Valve

8. Wait five (5) minutes to clear out any gas. If you smell
WHAT TO DO IF YOU SMELL GAS gas, STOP! Follow the instructions in the safety information
“What To Do If You Smell Gas”. If you don’t smell gas, go on
• Do not try to light any appliance. to the next step.
• Do not touch any electric switch; do not use any phone 9. Turn the gas control knob on the gas valve counterclockwise
in your building. to the “ON” position.
• Immediately call your gas supplier from a neighbors 10. Set the thermostat to the desired setting.
phone.
11. Turn the power switch on the inside of the cabinet to the “ON”
• Follow the gas supplier’s instructions. position.
• If you cannot reach your gas supplier, call the fire 12. Replace control access panel.
department.
13. Turn on all electrical power to the appliance.
1. This appliance does not have a pilot. It is equipped with an
ignition device which automatically lights the burner. Do not 14. If the appliance will not operate, follow the instructions “To
try to light the burner by hand. Turn Off Gas To Appliance” and call your service technician
or gas supplier.
2. BEFORE OPERATING, smell around the appliance area for
gas. Be sure to smell next to the floor because some gas is
heavier than air and will settle to the floor. TO TURN OFF GAS TO APPLIANCE
3. Use only your hand to turn the gas control lever. Never use 1. Turn off all electric power to the appliance if service is
tools. If the lever will not turn by hand, don’t try to repair it, to be performed.
call a qualified service technician. Force or attempted repair
2. Turn the gas control knob on the gas valve clockwise to
may result in a fire or explosion.
the “OFF” position. Do not force.
4. Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and any
gas control which has been under water.

LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above.
2. Turn off all electrical power to the appliance.
3. Remove the upper front access panel
4. Turn the power switch on the inside of the cabinet to
“OFF” position.
5. Set the thermostat to the lowest setting.
6. This appliance is equipped with an ignition device which
automatically lights the burners. DO NOT try to light
the burners by hand.
7. Turn the gas control knob on the gas valve clockwise to the
“OFF” position.
2
 If improper flame is observed, examine the venting system, ensure
MAINTENANCE proper gas supply and adjust the combustion air.
Listed below are items that must be checked to ensure safe reliable 3. Combustion Air Shutter Adjustment: This appliance uses a
operations. Verify proper operation after servicing. fan assisted combustion process. The fan air shutter is fac-
tory pre-set and should not need adjustment in most cases.
 CAUTION If adjustment is required, the fan air shutter may be manu-
ally adjusted to a dimension specified for each model. Fol-
Label all wires prior to disconnection when servicing low the steps below to adjust the fan air shutter if the appliance
controls. Wiring errors can cause improper and dangerous does not function properly or a continuous low air condition is
operation. observed:
1. Examine the venting system at least once a year. Check
more often in first year to determine inspection interval.
Check all joints and pipe connections for tightness,
corrosion or deterioration. Clean screens in the venting
air intake system as required. Have the entire system,
including the venting system, periodically inspected by
a qualified service agency.
2. Using the view port, located below the water
connections, visually check main burner flames at each
start up after long shutdown periods or at least every six
months.

 WARNING
This area is hot and direct contact could result in burns. FIG. 5 Combustion Air Shutter Adjustment

A. Check for proper installation and draft in venting

system. Correct as required.
B. Remove upper front access door.
C. Turn the power switch to the “OFF” position.
D. Turn the gas valve knob to the “OFF” position
E. Use a ruler to measure the distance from the base of the fan to the
end of the air shutter. Compare this distance to the specified “A”
dimension for the appliance.

TABLE - A
FIG. 4 Burner Flame Patterns
AIR SHUTTER
a. Normal Flame: A normal flame is blue, with ADJUSTMENT OPENING
slight yellow tips, with a well defined inner
cone and no flame lifting. Btu/hr Input “A” Dimension Opening

b. Yellow Tip: Yellow tip can be caused by 150,000 1-1/8"

blockage or partial obstruction of air flow to 199,999 1-1/4"
the burner(s).
250,000 1-1/4"
c. Yellow Flames: Yellow flames can be caused
by blockage of primary air flow to the 300,000 1-1/4"
burner(s) or excessive gas input. This
condition MUST be corrected immediately. F. If adjustment is necessary, follow these steps. If no adjustment
is necessary, go to step “I”.
d. Lifting Flames: Lifting flames can be caused
by over firing the burner(s) or excessive a. Loosen two combustion air blower mounting nuts and
primary air. slide the air shutter to the specified “A” dimension.
See Table A.
b. Tighten the combustion air fan mounting nuts.
c. Proceed to step “N” to check appliance for proper
operation.

3
G. If the appliance does not function properly after manually K. If adjustment is necessary, follow these steps. If no
setting the air shutter, use a magnahelic or slope gauge to set adjustment is necessary, go to step “L”.
the air shutter based on differential air pressure.
a. Loosen two combustion air blower mounting nuts, to
H. Install a tee in each of the hoses connecting the chamber pressure allow the air shutter to slide. See Figure 5.
and burner venturi pressure to the pressure switch. Install a
b. If differential pressure needs increasing, pull the air
connecting hose from the branch of each tee to a manometer,
shutter out with thumb and finger gradually and
magnahelic or slope gauge, legible in 0.1” increments up to
evenly. Push in the air shutter to decrease differential
3” w.c. Connect chamber pressure to the positive pressure side
pressure.
of the gauge and burner venturi pressure to the negative side of
the gauge. c. If the differential pressure cannot be obtained, shut the
appliance down and inspect the vent system (both air
I. Turn the power switch to “ON” position. Combustion
and flue gas passageways) for obstructions or leaks.
air fan should start. Leave the gas valve “OFF”.
d. Tighten combustion air blower mounting nuts.
J. With the combustion air fan running, the gauge will read
a system differential pressure. The proper differential L. Turn the power switch to “OFF” position.
pressure should be in the following range, depending
M. Remove gauge and tee connections, ensuring
upon length of pipe used:
connections are made at the pressure switch correctly;
the chamber pressure to the connection and the
TABLE - B burner venturi pressure to the connection.
DIFFERENTIAL AIR PRESSURE N. Turn the gas valve knob to “ON” position.
Btu/hr Input “A” Dimension Opening O. Turn the power switch to “ON” position.
1.4 - 1.8” w.c.
150,000 P. Replace upper front access door.

199,999 1.4 - 1.8” w.c. Q. When the main burner lights, observe the burner flame
through observation port. Flames should be light blue in
250,000 1.5 - 1.9” w.c. color with slight yellow tips; flames should be settled on
burner head with no lifting.
300,000 1.5 - 1.9” w.c.
R. The appliance is now ready to operate.

EB-EW-USER-Rev B
06/13 - Printed in U.S.A.