Enviro Q3L, Owner'S Manual, Page: 32 / 42

Page 32
Initial Installation
QUALIFIED INSTALLERS ONLY
e
LectRicaL
R
equiRements
:
TP
TP/TH
TH
Blue
Blue
Grey
Place Thermostat
Wires Here.
On/Off/Thermostat
Switch
This unit will operate without external electrical power. This model has a Millivolt gas control which
uses the pilot flame to generate enough electricity to operate the main burner. This appliance when
equipped with a 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.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper operation after servicing.
Table 10: 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)
Figure 32: Accessory Wiring
Figure 31: Q3 Wiring Diagram
COOL / HEAT
PROGRAM
DOWN
UP
70 ° F
70 ° F
ON
OF
F
Optional
Remote
Control
Blue
Blue
Optional
Wall Switch
Optional
Thermostat
Pilot
Adjustment
Screw
ON/OFF/REMOTE
Thermostat Switch
Thermopile
Thermocouple
Manifold
Pressure
Tap
Inlet
Pressure
Tap
Gas
Control
Valve
BV Only
180
o
F (82
o
C)
Temperature
Sensor
Blue
Optional Thermostat (50-583)
Optional Wall Switch (50-559)
120°F (49°C)
The Q3 comes from the
manufacture with an on/
off switch mounted to
the control panel. If you
would like to install a
wall mounted switch or
thermostat then use the
diagram to assist you
in wiring the accessory
into the unit. Disconnect
the connection behind
the switch in the control
panel as tap into the (2)
terminals as shown in
Figure 32.