Instructions / Assembly

INSPECT SHIPMENT:
Inspect contents for possible missing or damaged compo-
nents. See Figure 1. This kit includes:
Qty. 1 (one) - Combination Gas Control
Qty. 1 (one) – Installation Instructions
TOOLS REQUIRED:
7/16” Open-end wrench
3/4” Open-end wrench
Pipe Wrench
Soap and water solution
Pipe Thread Sealant
(Certified for use with
Natural and LP Gas/
Liquefied Petroleum
Gases)
NOTICE: Compounds
used on threaded joints
of gas piping shall be
resistant to the action
of Liquefied Petroleum
Gases.
ADDITIONAL INSTRUCTIONS:
Refer to the Use and Care Manual supplied with the water
heater for complete information on the installation, light-
ing instructions, operation and maintenance of the water
heater.
1. TURNING OFF GAS SUPPLY TO THE WATER
HEATER:
Rotate the combination gas control/thermostat knob coun-
ter clockwise  to the “OFF” position.
Shut off the gas supply at the main gas supply line. Refer
to the lighting instruction label located above the water
heaters combination gas control and the Use and Care
manual supplied with the water heater for additional infor-
mation on shutting off the gas supply.
2. DRAINING THE WATER HEATER: Shut off the inlet
water supply to the water heater. Connect a garden hose
to the drain valve and route to a drain or suitable draining
area. Open a hot water faucet to allow air to flow into the
water heater tank and open the drain valve. See Figure 2.
3. DISCONNECTION OF THERMOPILE, PILOT
SUPPLY LINE, BURNER SUPPLY TUBE AND
PIEZO WIRING FROM THE COMBINATION GAS
CONTROL:
Locate the thermopile connector on the combination gas
control. Carefully pull off the connector. Using a 7/16”
open-end wrench, disconnect the pilot supply line from the
combination gas control. Using a 3/4” open-end wrench,
disconnect the burner supply tube from the combination
gas control. Locate the piezo wire and carefully pull apart
the connection. See Figure 3.
NOTICE: The threads for connection of the burner
supply tube nut on LP combination gas controls are
left-handed.
4. COMBINATION GAS CONTROL REMOVAL:
With the gas supply shut off, disconnect the main gas sup-
ply piping from the combination gas control. After the
water heater is completely drained, screw a suitable length
of ½” NPT pipe into the gas inlet connection of the combi-
nation gas control. Rotate the control counter-clockwise 
until removed. Remove the ½” NPT pipe. See Figure 4.
5. NEW COMBINATION GAS CONTROL
INSTALLATION:
Ensure the replacement combination gas control is correct
for the gas usage of the water heater. Hand start threading
the control into the water heater. Install the suitable length
of ½“ NPT pipe previously used to the gas inlet of new
control. Rotate the control by turning clockwise until the
control is tight and in the upright position. Remove the ½”
NPT pipe. See Figure 4
6. CONNECTION OF THERMOPILE, PILOT SUPPLY
TUBE, BURNER SUPPLY LINE AND PIEZO
WIRING TO THE COMBINATION GAS CONTROL:
Install the inverted flare end of the burner supply tube into
the combination gas control. Hand thread the hex nut fit-
ting on the burner supply tube into the control. Ensure that
the fitting is properly aligned with the control, otherwise
cross threading of the connection will occur. Tighten the
fitting using a 3/4” open-end wrench. See Figure 3.
INSTALLATION INSTRUCTIONS
(FVIR) Atmospheric Honeywell Combination Gas Control Replacement Kit
Read these instructions thoroughly and understand all steps and procedures before
proceeding with the installation.
1
AP16772 (05/13)
Figure 1
Figure 2
Drain
Valve
Pilot Supply Tube
Piezo Wire
Thermopile
Connector
Figure 3
Burner Supply Tube