!CAUTION
Never use this water heater unless it is completely filled with water. To prevent damage to the tank, the tank must be filled with water. Water must flow from the hot water faucet before turning ON gas to the
water heater.
GAS SUPPLY |
| |
PIPE |
| GROUND JOINT UNION |
|
| |
TEE |
| |
| CONTROL |
DRIP LEG 
(SEDIMET TRAP)
3" MINIMUM
(MANDATORY)
PIPE CAP
Figure 1. Typical gas connection
d.Check all new water piping for leaks. Repair as needed.
8.Open the gas shutoff valve.
9.BEFORE TURNING ON THE APPLIANCE, CHECK THE GAS LINES FOR LEAKS.
a.Use a soapy water solution. DO NOT test for gas leaks using a match or open flame.
b.Brush the soapy water solution on all gas pipes, joints, and fittings. Use care that excess solution does not enter the control’s plastic housing.
c.Check for bubbling soap. This means you have a leak. Turn OFF the gas and make the necessary repairs.
d.Turn on the gas and recheck for leaks. Repeat this process until you are sure the system is
e.Rinse off the soapy solution and wipe all the plumbing parts dry.
PRESSURE REGULATOR ADJUSTMENT
These controls are shipped from the factory with the regulator set as specified on the control label. Consult the appliance rating plate to ensure burner manifold pressure is as specified. If another outlet pressure is required, follow these steps.
NOTE
If a valve has been
W.C. range, it cannot be
1.Turn off all electrical power to the system
2.These models have 1/8 NPT threaded taps. The outlet pressure tap plug will need to be removed and a separate hose fitting installed.
3.Attached a hose and manometer to the separate hose fitting which has been installed in place of the 1/8 NPT threaded tap.
4.Turn on system power and energize valve.
5.Remove regulator cover screw and turn regulator adjust
screw clockwise ( 
) to increase pressure, or counterclockwise (
) to decrease pressure (see
INSTALLATION
fig. 3). Always adjust regulator to provide the correct pressure according to the original equipment manufacturer’s specifications listed on the appliance rating plate. Replace regulator cover screw.
6.Turn off all electrical power system to the system.
7.Remove manometer hose from outlet pressure tap.
8.Remove hose fitting and
9.Turn on electrical power to the system.
10.Turn on system power and energize valve.
11.Using a leak detection solution or soap suds, check for leaks at pressure boss screw or pressure tap plug. Bubbles forming indicate a leak. SHUT OFF GAS AND FIX ALL LEAKS IMMEDIATELY.
Outlet Pressure
Regulator Adjust
Tower
1/8 Threaded Outlet
Pressure Tap
37E
Outlet Pressure
Regulator Adjust
Tower
1/8 Threaded Outlet
Pressure Tap
36G Valve
Figure 2. Pressure port and regulator adjust locations
Regulator
Cover Screw
Plastic
Adjust Screw
Regulator
Spring 
Figure 3
3
