Trane Foundation GBC Series Installation, Operation And Maintenance Manual page 18

I I n n s s t t a a l l l l a a t t i i o o n n
exceed three (3) ohms/conductor for the length of
the run.
N N o o t t e e : : Resistance in excess of 3 ohms per conductor
could cause component failure due to
insufficient AC voltage supply.
Table 2. Electromechanical thermostat 24V AC conductors with electromechanical unit
Distance from Unit to Control
0 - 30 feet
0 - 9.1 m
31 - 50 feet
9.5 - 15.2 m
51 - 75 feet
15.5 - 22.9 m
76 - 125 feet
23.1 - 38.1 m
126 - 200 feet
38.4 - 60.9 m
Figure 12. Conventional thermostat field wiring diagram
18
3. Be sure to check all loads and conductors for
grounds, shorts, and mis-wiring.
4. Do not run the AC low voltage wiring in the same
conduit with the high voltage power wiring.
Recommended Wire Size
22 gauge
0.33 m2
20 gauge
0.50 m2
18 gauge
0.75 m2
16 gauge
1.3 m2
14 gauge
2.0 m2
R
W1
W2
G
C
Y1
Y2
RT-SVX069A-EN