Initial Installation
QUALIFIED INSTALLERS ONLY
e
LectRicaL
R
equiRements
:
TP
TP/TH
TH
Blue
Grey
Blue
Place Thermostat
Wires Here.
On/Off/Thermostat
Switch
This
Q2G
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 9: 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 31: Accessory Wiring
Figure 30: Q2G Wiring Diagram
COOL / HEAT
PROGRAM
DOWN
UP
70 ° F
70 ° F
ON
OF
F
Optional
Remote
Control
Blue
Grey
Optional
Wall Switch
Optional
Thermostat
Pilot
Adjustment
Screw
ON/OFF/REMOTE
Thermostat Switch
Blue
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 Q2G 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 31
Page 27
