Gas piping recommendations:
•A drip leg and a ground joint union must be installed in the gas piping. A ground joint union is recommended by the manifold/valve.
•When required by local codes, a manual shutoff valve may have to be installed outside of the unit.
•Use pipe thread sealing compound resistant to propane gas sparingly on male threads.
•The gas supply should be a separate line and installed in accordance with all safety codes listed on page 1. After the gas connections have been completed, open the main shutoff valve admitting normal gas pressure to the mains. Check all joints for leaks with soapy solution or other material suitable for the purpose.
WARNING
Never use a flame to check for gas leaks. Explosion causing injury or death may occur.
•The furnace and its individual manual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 PSIG (3.48kPa).
•A 1/8" N.P.T. plugged tapping, accessible for test gauge connections, must be installed immediately upstream of the gas supply connection to the furnace.
Gas Connection
The gas supply line should be routed through the grommet on the side of the unit.
WARNING
The furnace must be isolated from the gas supply piping system by closing the individual manual shutoff valve during any pressure testing of gas supply piping system at test pressures equal to or less than 1/2 psig or 14" w.c. If the piping system is to be tested at pressures in excess of 1/2 psig, the furnace and its individual shutoff valve must be disconnected from the gas supply piping system.
Typical Field Wiring
| Thermostat |
Weatherproof |
|
Disconnect Switch | To |
| Power |
| Supply |
48" Overhead |
|
Clearance | NEC Class 1 Wiring |
| NEC Class 2 Wiring |
To Unit Power Entry | To Low Voltage Entry |
|
|
| Vent Cover |
|
|
|
| 12" Clearance | 2" Clearance Rear | |
|
| (Both Sides) |
| |
|
|
|
| |
24" Clearance |
| 15" Clearance |
|
|
| To Vent Cover |
|
| |
From Front |
|
|
| |
|
|
|
| |
|
| Power Entry | NOTE: All outdoor wiring must be weatherproof. | |
| Gas Entry |
| ||
| Low Voltage Entry |
|
| |
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Figure 4
Page 6 of 14 | Issue 0921 |