INSTALLATION INSTRUCTIONS
69-0317-05
393200-1 ECO Connector for the
VR8200 Family of Continuous Pilot
Combination Gas Controls
APPLICATION
The393200-1 ECO Connector ls an optional device for
V8200 and VR8200 continuous pilot combination gas
controls that allows connecting a high-limit ECO into the
thermocouple circuit. It can be used only with the V8200
and VR8200 models.
With an ECO switch in the thermocouple circuit, safety
shutoff can be initiated on high-limit action. The ECO
switch senses plenum temperature and breaks the
thermocouple circuit if plenum temperature rises too
high.
Leadwires from the high limit or ECO must be equipped
with insulated 1/4-in. female quick-connect terminals.
Leadwire lengths must not exceed the lengths shown in
Table 1. Maximum Length of Supplementary Limit Leadwires when Using Q340A Thermocouple
Thermocouple
Length
Maximum Leadwire Length x 2 (wires)
AWG NO. 14
AWG NO. 16
AWG NO. 18
in.
m
in.
m
in.
m
in.
m
12
0.3
41
1.0
26
0.7
16
0.4
18
0.5
35
0.9
22
0.6
13
0.3
24
0.6
29
0.8
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
0.2
40
1.0
13.
0.3
8
0.2
48
1.2
Do Not Use
54
1.4
60
1.5
72
1.8
Table 2. Maximum Length of Supplementary Limit Leadwires when Using Q309A Thermocouple
Thermocouple
Length
Maximum Leadwire Length x 2 (wires)
AWG NO. 14
AWG NO. 16
AWG NO. 18
in.
m
in.
m
in.
m
in.
m
12
0.3
47
1.2
30
0.8
18
0.5
18
0.5
41
1.0
26
0.7
16
0.4
24
0.6
35
0.9
22
0.6
14
0.4
30
0.8
29
0.8
18
0.5
11
0.3
36
0.9
23
0.6
15
0.4
9
0.2
40
1.0
19
0.5
12
0.3
7
0.2
48
1.2
11
0.3
7
0.2
54
1.4
Do Not Use
60
1.5
72
1.8
