VR8300 CONTINUOUS PILOT COMBINATION GAS CONTROL
5
69-0668—05
Fig. 7. Always use new compression fitting.
5.
Connect other end of tubing to pilot burner accord-
ing to pilot burner manufacturer instructions.
Install Thermocouple
The Q340A Thermocouple (with adapters) is provided
with some models of the VR8300. Install the Q340A as
follows:
1.
Determine if the pilot burner requires a thermocou-
ple with a push-in clip or attachment nut, and
attach the correct adapter to the Q340.
2.
For push-in clip type pilot burners, from beneath,
insert the tip of the Q340 into the hole or barrel of
the pilot burner. Push in firmly to lock in place.
3.
For attachment nut type pilot burners: From
beneath, insert the tip of the Q340 into the hole or
barrel in the pilot burner. Engage the threads of the
attachment nut and tighten securely.
If a supplementary limit or energy cutoff (ECO) is used,
insert the ECO connector (order part no. 394332 as
shown in Fig. 8) and then connect the thermocouple lead.
Otherwise, insert the thermocouple lead directly.
Fig. 8. Install thermocouple, optional ECO connector to
power unit.
This is an electrical connection and must be clean and
dry. Never use pipe compound. Tighten only 1/4 turn
beyond finger-tight to give good electrical continuity. Do
not overtighten.
Wiring
CAUTION
Hazardous Voltage.
Can cause personal injury or equipment damage.
Disconnect power supply before installing or
servicing.
All wiring must comply with applicable electrical codes
and ordinances.
Refer to the appliance manufacturer instructions if
available, or use the following procedure.
1.
Check the power supply rating on the gas control
and make sure it matches the available supply.
Install the transformer, thermostat, and other con-
trols as required.
2.
Connect the control circuit to the gas control termi-
nals. See Fig. 1 and 9.
Fig. 9. Wiring connections for 24V control.
3.
Adjust the thermostat heat anticipator to the 0.70
rating stamped on valve operator.
Table 6. Maximum Length of Supplementary Limit Leadwires in in. (m) When Using Q340A Thermocouple.
GAS CONTROL
TIGHTEN NUT ONE TURN
BEYOND FINGER-TIGHT.
TO PILOT
BURNER
FITTING BREAKS OFF AND CLINCHES
TUBING AS NUT IS TIGHTENED.
M3076B
THERMOCOUPLE
LEAD
ECO
CONNECTOR
1
THIS IS AN ELECTRICAL CONNECTION AND MUST BE
CLEAN AND DRY. DO NOT USE PIPE COMPOUND.
M3095B
1
L1
(HOT)
L2
1
24V
THERMOSTAT
OPTIONAL
CONVENIENCE
TERMINALS
TH/TR
TH
TR
GAS CONTROL
TERMINALS
HIGH LIMIT
CONTROLLER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
DO NOT JUMPER THESE TERMINALS. THIS SHORTS VALVE COIL
AND CAN BURN OUT ANTICIPATOR IN THERMOSTAT.
CONVENIENCE TERMINALS SERVE ONLY AS A TIE POINT.
THEY ARE NOT INTERNALLY WIRED TO THE CONTROL CIRCUIT
OR TO GROUND.
OPTIONAL HIGH LIMIT.
1
2
3
4
2
3
4
M2915C
Thermocouple Length
Maximum Leadwire Length x 2 (Wires)
AWG No. 14
AWG No. 16
AWG No. 18
in.
in.
in.
in.
in.
in.
in.
in.
18
0.5
35
0.9
22
0.6
13
0.3
24
0.6
29
0.7
18
0.5
11
0.3
30
0.8
23
0.6
15
0.4
9
0.2
36
0.9
17
0.4
11
0.3
6
0.3
48
1.2
DO NOT USE
60
1.5
