Full Product Manual

IHR Series Manual
14 15
This heater must be installed and serviced by trained gas installation and service personnel only.
The installation of this heater must conform with local building codes or, in the absence of such codes, the
National Fuel Code (NFPA 54).
The gas outlet must be in the same room as the appliance and accessible. It may not be concealed within
or run through any wall, floor or partition.
1
The IHR Series heater is equipped to receive a gas supply line nipple of 1/2” NPT Schedule 40
metallic pipe. All piping must be installed in accordance with the requirements outlined in the National
Fuel Gas Code ANSI/Z223.1 (latest edition) or CSA B149.2. Support all gas supply with pipe hangers,
metal strapping, or other suitable material. Do not rely on the heater to support the gas pipe.
2
Form the stainless steel flexible connector (field supplied) into a smooth C-shape allowing 12 in.
between the flexible connector’s end nuts. Figure 2.5 on page 16. NOTE: Not for use on rigidly
mounted heaters.
3
Install a ground joint union with a brass seat and a manual shut off valve adjacent to the unit for
emergency shut off and easy servicing of controls. A 1/8” NPT plugged tap that is accessible for a test
gauge connection is also recommended.
4
A sediment trap must be installed in the supply line in the lowest spot prior to connecting to the heater.
The trap length shall be at least three inches long. Ideally, the trap would be installed as close as
possible to the shut off.
5
When connecting piping to the unit, the use of a thread joint compound is required. The thread
compound (pipe dope) shall be resistant to the action of propane gas or any other chemical
constituents of the gas to be conducted through the piping. Use of Teflon
®
tape is not permitted.
WARNING
!
!
Always use two (2) opposing wrenches to tighten mating pipe connections
to prevent excessive torque on the gas valve and manifold pipe. Excessive
torque can damage the valve and/or misalign the orifice, resulting in fire,
explosion, serious injury, or death.
To connect the gas:
2.0 Installation • Gas Connection
WARNING
!
Failure to install, operate, or service this appliance in the approved manner may result in
property damage, injury, or death.
An approved connector, suitable for the environment of equipment usage, is required.
Visible or excessive swaying, flexing, and vibration of the gas connections must be
avoided to prevent failure. Neither the gas pipe nor the connector shall be placed in the
‘flue discharge area’. In no case shall the gas supply support the weight of the heater.