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SECTION 4. INSTALLER CHECKOUT & START-UP
GENERAL:
Some of the following procedures will require the heater to be
operating. Full lighting and shutdown instructions are included
on the lighting instructions label secured inside the cabinet. The
instruction labels are shown in Figures 39 and 40. The millivolt
heater must be lit manually. The electronic ignition models are lit
automatically on each call for heat.
Water must be owing through the heater during operation.
Check that the pump is operating and the system is lled with
water and purged of all air, prior to starting heater.
GAS LINE TESTING:
The appliance and its gas connection shall be leak tested
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 (3.45 kPa). 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 pressures equal to or less
than 1/2 psig (3.45 kPa).
Gas supply line must be capped when not connected. After
pressure testing, reconnect the gas piping to the gas valve. Turn
gas supply on and test all pipe and pilot tubing joints for leaks.
Use a soap and water solution. Bubbles forming indicate a leak.
Never use an open ame (match, lighter, torch, etc.) as a
leak could cause an explosion or injury. Shut off gas and
x even the smallest leak right away. Be sure to leak test main
burner and pilot tube ttings using above procedure once heater
is in operation.
GAS PRESSURE TEST PROCEDURE:
The following gas pressure requirements are important to
the proper operation of the burners and pilots in gas heaters.
Improper gas pressure or gas volume will create the following
conditions:
1. Flame burns totally yellow.
2. Flame lifts off burner.
3. Heat exchanger soots up.
4. Pilot outage on millivolt heaters.
The pressure regulator on all H-Series heaters is preset at
the factory and normally needs no adjustment. If gas pressure
is inadequate, check for undersized piping between meter and
heater or for low capacity gas meter.
A. GAS PRESSURE TEST PROCEDURE:
1. Obtain necessary equipment:
a. Manometer to read pressure in inches
of water column.
b. 1/8” nipple (1/8” pipe thread x 1” long).
c. 5/16” open end wrench.
d. Screwdriver.
! SAFETY WARNING: Do not remove the 1/8” plug with the
gas valve in the “ON” position. The gas valve must be in the
“PILOT” or “OFF” position when the plug is removed.
2. Remove 1/8” plug from gas valve.
3. Install 1/8” pipe nipple into gas valve.
4. Attach manometer to the 1/3” pipe nipple. See Figure 34.
5. Turn on water system and start heater following the light-
ing instructions on the label inside the cabinet. If there is
more than just the pool/spa heater connected to the gas
supply line, turn each of those appliances on while testing
the heater.
6. Take pressure reading with the heater running. Propane
gas must have 9” W.C. (water column pressure). Natural
gas must have 3.5” W.C. See Figure 35.
Figure 34: Gas Pressure
Figure 35: Gas Pressure Reading
MANOMETER
TUBE
NATURAL
PROPANE
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