Lynx LHEM48NG Use & Care Manual
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All gas pipe connections to the heater must be sealed with gas pipe compound or Teflon sealing tape. Prior to use, the
gas supply line should be checked for leaks by applying a mild solution of soap and water. Never use an open flame to
check for leaks. See section titled ‘Checking for Gas Leaks’, page 10.
Run the gas line to the vicinity of the heater. It is recommended that the gas line be securely fixed to the wall or
mounting surface. WARNING: do not run gas line in a location that it can be tripped over or in a location that passes
by either the heat output or the exhaust of the heater. This gas line can now be attached directly to the heater using a
series of elbows and short sections of straight pipe (nipples), sufficient to lead gas piping from the wall to the inlet of the
heater. The final fitting will be a ½”NPT male pipe to mount directly into the heater. A convenient alternative to this
termination point is to run a flexible gas line directly from the termination point of the hard piping to the inlet of the
heater. This typical flexible line would be ½” I.D. (5/8” O.D.) stainless steel, with ½” MIP (male) fittings at both ends.
(Lynx P/N 31546). A ½” FIP (female) coupling would then be used to connect the flex line to the hard pipe. Please note,
for Natural Gas (NG) installations, a regulator is not required, as the heater is equipped with a built-in regulator inside
the valve. For Propane (LP) installations, always use the regulator that is provided with the propane flexible
connection hose.
mounting surface. WARNING: do not run gas line in a location that it can be tripped over or in a location that passes
by either the heat output or the exhaust of the heater. This gas line can now be attached directly to the heater using a
series of elbows and short sections of straight pipe (nipples), sufficient to lead gas piping from the wall to the inlet of the
heater. The final fitting will be a ½”NPT male pipe to mount directly into the heater. A convenient alternative to this
termination point is to run a flexible gas line directly from the termination point of the hard piping to the inlet of the
heater. This typical flexible line would be ½” I.D. (5/8” O.D.) stainless steel, with ½” MIP (male) fittings at both ends.
(Lynx P/N 31546). A ½” FIP (female) coupling would then be used to connect the flex line to the hard pipe. Please note,
for Natural Gas (NG) installations, a regulator is not required, as the heater is equipped with a built-in regulator inside
the valve. For Propane (LP) installations, always use the regulator that is provided with the propane flexible
connection hose.
An alternative to the hard pipe installation (NG or LP) is to use a flexible hose which mounts directly from the main gas
source and extends directly into the heater inlet. Lynx provides such a hose. Please order Lynx P/N LQD-EM if this type
of installation is desired. See illustrations below for all three installation techniques.
source and extends directly into the heater inlet. Lynx provides such a hose. Please order Lynx P/N LQD-EM if this type
of installation is desired. See illustrations below for all three installation techniques.