Installation Guide
Residen al Gas Water Heater Use and Care Guide for Manufactured Homes • 19
INSTALLATION
Figure 25:
VAC
MANIFOLD SCREW (2)
MANIFOLD COMPONENT BLOCK
MANIFOLD
DOOR
THERMAL
SWITCH
PILOT TUBE
MANIFOLD TUBE
VIEWPORT
THERMOPILE
WIRE
CONNECTIONS
PIEZO IGNITER BUTTON
GAS CONTROL/
TEMPERATURE KNOB
OUTER DOOR
NOT SHOWN
GAS CONTROL VALVE/THERMOSTAT CONNECTIONS
IGNITER
WIRE
RED WIRE
(LEFT SIDE)
PILOT
T
UBE MANIFOLD TUBE
IGNITER
BUTTON
IGNITER
LEAD
WIRE
WHITE
WIRE
(RIGHT
SIDE)
Front View of Water Heater
Figure 26:
GAS CONTROL VALVE/THERMOSTAT
CONVERSION FITTING
CAP
NATURAL GAS:
“NAT” FACES OUTWARD
(TOWARD YOU).*
LP GAS:
“LP” FACES OUTWARD
(TOWARD YOU).*
* ORIENTATION MAY VARY.
FITTING TO BE TIGHT.
Conversion Fitting
Conversion Procedure:
1. Contact your gas company to
determine the type of gas supplied
to your home.
2. Check the se ng of the conversion
fi ng in the gas control valve
(Figure 26).
3. Check the label on the manifold
burner assembly door.
4. Make sure both the conversion
fi ng (Figure 26) and the manifold
burner assembly (see door label)
are for the type of gas supplied to
your home.
5. If you are conver ng this water
heater from Natural to LP or from
LP to Natural, follow these steps:
a. Remove the manifold
burner assembly. See
Removing the Manifold
Assembly, page 19.
b. Install the correct
conversion manifold
burner assembly. See
Installing the Conversion
Manifold Assembly, page
20.
c. Convert the gas
control valve/thermostat
to the same type of gas.
See ConverƟ ng the Gas
Control Valve/Thermostat,
page 19.
d. Place s cker next to
ra ng plate showing the
type of gas to which this
water heater has been
converted.
Removing the Manifold
Assembly
1. If you are working with a water
heater that has already been
installed, turn off the gas supply to
the water heater at the manual gas
shut-off valve. This valve is typically
located beside the water heater.
Note the position of the shut-off
valve in the open/on position, then
proceed to turn it off.
2. On the lower front of the water
heater, locate the gas control
valve/thermostat.
3. Turn the gas control/temperature
knob to the “OFF” position. With
the unit shut-off, allow sufficient
time for the water heater to
cool before performing any
maintenance.
4. Remove the outer door.
5. Remove the two screws securing the
installed manifold assembly to the
combustion chamber (Figure 25).
6. Disconnect the following from the
gas control valve/thermostat: pilot
tube, igniter wire, and manifold
tube. See Figure 25.
7. Using needle nose pliers,
disconnect the white and red
thermopile connectors from the
gas control valve/thermostat
(Figure 25).
8. Grasp the manifold tube and push
down slightly to free the manifold
tube and pilot tube.
9. Carefully remove the manifold
assembly from the burner
compartment. NOTE: Be sure not
to damage internal parts.
Conver ng the Gas Control
Valve/Thermostat
1. Remove the cap (shown in Figure
26).
2. Remove the conversion fitting by
turning it counter-clockwise with a
flathead screwdriver.
3. Thread the opposite end of the
conversion fitting into the opening
by turning it clockwise, then tighten
it with a flathead screwdriver.
A. LP GAS: If you are converting
the unit to use LP gas
(propane), verify that “LP” is
marked on the exposed end
of the fitting. “LP” must face
outward (toward you). See
Figure 26. If “NAT” faces
outward, repeat step 2.
B. NATURAL GAS: If you are
converting the unit to use
INSTALLATION