Burner Installation; Gas Valve Replacement - Hayward H250FDN Service & Installation Manual

0

BURNER INSTALLATION:

Refer to Figure 0 as needed.
1. Reverse the above procedure to install the burners.
. Turn the gas supply "ON". Use a soapy water solution to check for leaks.
. Bubbles forming indicate a leak.
. To start the heater, follow the instructions on the label inside the front access panel (see Figure 0).

GAS VALVE REPLACEMENT:

Refer to Figures 40 & 41.
ATTENTION: Do not attempt to repair the gas valve. If found defective, replace the entire valve.
Attempts to repair it will void the warranty.
1. Turn pump, gas supply, and heater power "OFF".
. Disconnect the union joint in the gas supply piping outside the heater cabinet.
. Remove the front access panel. It is secured with () screws.
. Disconnect the wiring terminals from the gas valve.
5. Remove the gas manifold assembly. It is attached to the air box using () screws.
. Unscrew the gas valve (with both 5° elbows still attached) from the gas manifold pipe.
7. Remove the elbows from the valve.
8. Reassemble the gas manifold assembly using the new gas valve. See Figure 1 for the correct orien-
\tation of the manifold pipe, pipe elbows, and gas valve. Only use liquid pipe dope on the male
threads of the elbows and the gas manifold pipe. Do not place pipe dope on the first two threads of
any joint.
9. Complete assembly by reversing steps 1 – 5.
Figure 41: Correct orientation of
components of gas manifold assembly
WARNING: EXPLOSION HAZARD The use of an open flame to check for gas
leaks could cause an explosion resulting in severe injury and/or death
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-351-5400 www.haywardpool.com