Install Instructions

IHR Series Manual
16
2.0 Installation • Gas Connection • Leak Testing
Leak Testing
Always leak test final gas assembly for gas leaks according to the procedures outlined in NFPA 54 and all
local codes and/or Standards.
For leak testing on pressures below ½” PSI
Before leak testing, close the field installed manual shut off valve shown on Figure 2.5 on the supply line
to isolate the gas valve from the pressure.
NOTE: All factory installed gas connections have passed an approved leak test.
For leak testing on pressures above ½” PSI
When leak testing with pressures above ½” PSI (14 inches W.C.), the unit must be isolated from the
supply pipe. Close the field installed manual shut off valve, disconnect the supply line to the unit, and
temporarily cap the supply line for testing purposes.
Figure 2.5 • Gas Connection
Drip Leg/
Sediment Trap
NOTE: Use a
regulator when gas
supply pressure
exceeds 14” W.C. Do
not exceed 14” W.C.
to the appliance.
Ball Valve / Inlet Tap
Disconnect switch
Stainless Steel Gas Connector, formed into a smooth C-Shape
(Field Supplied). Not for use with rigidly mounted heaters.
SIDE VIEW
20˚ - 35˚
TOP VIEW
WARNING
!
!
Use a soap solution or equivalent for leak testing. Never test for leak with an open flame.
Failure to comply could result in personal injury, property damage, or death.
WARNING
!
Gas pressures to the appliance controls must never exceed 14 inches W.C. (1/2” PSI).
Supply pressures greater than 14” W.C. can damage the controls, resulting in personal
injury, property damage, or death.