UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL
3.6 Ventilation
WARNING
Carbon Monoxide Hazard
Heaters may be installed vented or unvented.
Vented heaters must be vented outdoors.
Unvented heaters must be installed in buildings with ventilation rates as per section 6.4.
Failure to follow these instructions can result in death or injury.
It is important to ensure that there is adequate air space around the heater to supply air for combustion, ventilation and distribution in accordance with local and national codes. See Page 10, Section 6.
3.8 Electrical Supply
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.
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 Page 19, Section 9.
3.7 Gas Supply
WARNING
Fire Hazard
Connect gas supply according to Figure 12.
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.
3.9 Vent
Choose heater orientation to allow for 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 10, Section 6.
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 18, Section 8.
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