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SECTION 3: CRITICAL CONSIDERATIONS
7
3.7 Gas Supply
It is important that the gas supply pipe is sized
correctly to provide the inlet pressure as stated on
the heater data plate. The gas supply pipe and
electrical connections must not support any of the
heater's weight. See Page 22, Section 8
3.8 Electrical Supply
A permanent 120 V / 1 Ø / 60 Hz electrical supply is
required for the main electrical power. The heater
also requires suitable controls in accordance with
See Page 23, Section 9.
3.9 Vent
Choose heater orientation to allow for the proper
location of the vent. Each heater must be fitted with
a correctly sized sealed vent system.
If vented horizontally, no other appliance may be
connected to the vent. See Page 14, Section 6.
Figure 4: Installation Clearances and Clearances to Combustibles
WARNING
Fire Hazard
Connect gas supply according to Figure 15.
Do not use gas supply pipe and electrical
connections to support heater’s weight.
Gas can leak if not installed properly.
Failure to follow these instructions can
result in death, injury or property damage.
WARNING
Electrical Shock Hazard
Disconnect electrical and gas supply before
servicing.
This appliance must be connected to a
properly grounded electrical source.
Failure to follow these instructions can
result in death or electrical shock.
* Recommended mounting height varies with heater input.
Heaters may be mounted at a higher level if destratification
fans are installed.
Clearance to Vent: 2" (5 cm)
**18" (45.7 cm) minimum is
necessary for servicing.
The heater must always be installed at least 6' (2 m) above the floor.
The vent pipe must have clearance from combustibles by 2" (5 cm).
If installed at low levels where individuals can come in contact with hot heat exchanger components,
adequate guarding must be provided.