01-02
17
28881 Rev G
NOVUS REAR DIRECT VENT
1. HIGH ALTITUDE INSTALLATION
For U.S. installation, appliances are tested and approved for elevations from 0-2000 feet. When installing this
appliance at an elevation above 2000 feet, National Fuel Gas Codes require a decrease of the input rating by
changing the existing burner orifice to a smaller size. Input should be reduced 4% for each 1000 feet above sea
level. Check with the local gas utility for proper orifice size identification. The current orifice is available from your
Heatilator distributor.
For Canada, appliances are certified for elevations from 0-4500 feet. When installing this appliance at an elevation
between 0-4500 feet in Canada, the input rating does not need to be reduced. When installing this appliance at an
elevation above 4500 feet in Canada, check with local authorities.
2. GAS LINE CONNECTION
Open the control access panel as shown in Figures 25 and 26. The appliance is provided with a stainless steel
flexible connector and manual shutoff valve. The incoming gas line should be piped into the valve compartment and
connected to the 1/2 FIP connection provided on the manual shutoff valve. All connections must be tightened and
checked for leaks with a soap and water solution or leak detector. Bleed the gas line to extract any air that may have
been trapped inside the pipe. See Figure 27 to connect the gas line.
F. UTILITIES
Figure 25
Opening Control Access Panel
Figure 26
Control Access Panel Removal
Figure 27
Gas Line
