Hayward Pools ABG1001 - Manual (Page 3)

Gas line testing:
The appliance and its gas connection shall be leak test -
ed before placing the appliance in operation. The heater
and its individual shutoff valve must be disconnected from
the gas supply piping system during any pressure testing of
that system at test pressures in excess of 1⁄2 psig. The
heater must be isolated from the gas supply piping system
by closing its individual manual shutoff valve during any
pressure testing of the gas supply piping system at test
pressure equal to or less than 1⁄2 psig.
The gas supply line must be capped when not connect -
ed. After pressure testing, reconnect the gas piping to the
gas valve. Turn gas supply on and test all pipe and pilot tub -
ing joints for leaks. Use a soap and water solution. Bubbles
forming indicate a leak. Never use a open flame (match,
lighter, torch, etc.) as a leak could cause an explosion
or injury.
Shut off gas and fix even the smallest leak imme -
diately. Be sure to leak test the main burner fittings using the
above procedure once the heater is in operation.
Gas pressure test procedure:
The following gas pressure adjustments are important to
proper operation of the heater. Incorrect settings can cause
improper operation.
1. Turn pump, main gas valve and heater power on. Start
heater following lighting instructions.
2. Using a manometer, determine the inlet gas pressure.
The inlet gas pressure must not exceed 10.5" W .C.
(water column pressure) for Natural gas or 13" W .C. for
Propane gas. Exposure to higher pressures can dam-
age the gas control valve, causing leaks or
diaphragm rupture.
This damage could result in fire,
explosion or burner overfiring leading to carbon monox -
ide poisoning. The inlet gas pressure must not be below
3.0" W.C. for Natural gas and for Propane. The heater
may fail to operate at low inlet gas pressures. If the inlet
gas pressure is too high or too low , the installer must
contact the gas supplier and request that the inlet pres -
sure to the heater be adjusted.
3. Using a manometer, determine the gas operating pres -
sure. Manifold pressure for both natural and propane gas
is 2.0" W.C. The gas valve is preset to operate at this
pressure, no adjustment is necessary.
Section IV. Installer
3
1. Clean filter thoroughly.
2. Set heater thermostat to highest setting.
3. Start filter pump. Make sure all air is out of water
lines and complete system is full of water .
4. Place a 5/64” allen head wrench in the adjusting
socket on the front of the switch and turn it
clockwise to increase the pressure required to close
the switch (this may be required if the heater is
installed more than 4 feet below water level).
5. To check operation, turn the pump on and of f several
times. The heater should shut off immediately when
the pump is shut off.
Hayward0205English 8/3/05 9:38 AM Page 3