Initial Installation
QUALIFIED INSTALLERS ONLY
ELECTRICAL REQUIREMENTS FOR GAS VALVE AND OPTIONAL BLOWER:
The ENVIRO WESTPORT will operate without electrical power. This model has a millivolt gas control, which uses the pilot flame to generate enough electricity to operate the main burners. The appliance when equipped with an optional blower must be electrically connected and grounded in accordance with local codes or in the absence of local codes, with the current CSA C22.1 CANADIAN ELECTRICAL CODE Part 1, SAFETY STANDARDS FOR ELECTRICAL INSTALLATIONS, OR THE NATIONAL ELECTRICAL CODE ANSI / NFPA 70 in the U.S.
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| ON/OFF/Remote | |
| Optional | Thermostat Switch | |
| Remote | Blue | Thermocouple |
70 ° F | Control | ||
|
| Thermopile | |
N |
| F | |
O |
|
| |
|
| F | |
| O |
| |
Purple
| Inlet | |
Manifold | Pressure | |
Tap | ||
Pressure Tap | ||
|
70 ° F
UP
DOWN
COOL
/ H
EAT 
PROGRAM
| Gas Control |
Grey | Valve |
| |
| Optional |
| Wall Switch |
| Pilot Adjustment |
| Screw |
| Optional |
| Thermostat |
Figure 45: Gas Control Valve and Optional Thermostat Wiring.
Table 5. Recommended Thermostat Wire
Size.
Wire Size | Max. Length | |
|
|
|
14 gauge | 100 ft | (30.48 m) |
|
|
|
16 gauge | 60 ft | (18.29 m) |
|
|
|
18 gauge | 40 ft | (12.00 m) |
|
|
|
20 gauge | 25 ft | (7.62 m) |
|
|
|
22 gauge | 18 ft | (5.49 m) |
|
|
|
White | ��� |
|
|
| |
Black |
| Black |
| White |
|
Fan |
|
|
temperature | Power |
|
sensor | Fan | |
| Supply | |
|
| controller |
Figure 46. Wiring Diagram For Fan Control.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.
WARNING: Electrical grounding instructions. This appliance is equipped with a
DO NOT cut or remove the grounding prong from this plug.
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