HTP PHE199-119 - Manual (Page 48)

48
LP-314 REV. 3.24.14
It is recommended that a soapy solution be used to detect leaks. Bubbles
will appear on the pipe to indicate a leak is present. To avoid excessive
pressure drop, the gas piping must be sized for the proper flow and length
of pipe. Both the gas meter and regulator must be properly sized for the
total gas load. If you experience a pressure drop greater than 1” WC, the
meter, regulator, and/or gas line is undersized or needs service. By
removing the cap, you can attach a manometer to the incoming gas drip
leg. The gas pressure m
ust remain between 3.5” WC and 14” WC during
stand-by (static) mode and while in operating (dynamic) mode at full
output. If an in-line regulator is used, it must be installed a minimum
of 10 feet from the appliance.
It is very important that the gas line is properly purged by the gas
supplier or utility. Failure to properly purge or size the lines will
result in ignition failure. This problem is especially noticeable in NEW
LP installations and empty tank situations. This can also occur when a
utility company shuts off service to an area to provide maintenance to
their lines. The gas valve must not be replaced with a conventional gas
valve under any circumstances. As an additional service feature, the gas
valve in this appliance has a flanged connection to the swirl plate and
blower.
D. GAS VALVE
Figure 28 – LP-314-M
Do not do a gas conversion on this appliance without an officially approved conversion kit and instructions supplied by HTP. Failure to
use a conversion kit when converting the appliance to fire on Natural or LP gas will result in extremely dangerous burner operation,
leading to fire, explosion, severe injury or death.
Strain on the gas valve and fittings may result in vibration, premature component failure and gas leakage, and result in fire, explosion,
property damage, severe personal injury, or death.
Adjustments to the throttle screw or offset may only be made by a qualified gas technician using a calibrated combustion analyzer
capable of measuring CO
2
and CO. Failure to follow this instruction could result in fire, explosion, property damage, severe personal
injury, or death.