Installation

Note: Resistance in excess of 2.5 ohms per conductor can cause deviations in the accuracy of the controls.

2.Ensure that the wiring between controls and the unit’s termination point does not exceed two and a half (2.5) ohms/conductor for the length of the run.

3.Do not run the electrical wires transporting DC signals in or around conduit housing high voltage wires.

Table 3. DC Conductors Zone Sensor Module wiring

Distance from Unit to Control Recommended Wire Size

0 - 150 feet

22 gauge

 

 

0 - 45.7 m

.33 mm2

 

 

 

151

- 240 feet

20 gauge

 

 

 

46

- 73.1 m

.50 mm2

 

 

241 -385 feet

18 gauge

 

 

73.5 - 117.3 m

.75 mm2

 

 

 

386

- 610 feet

16 gauge

 

 

117.7 - 185.9 m

1.3 mm2

 

 

 

611

- 970 feet

14 gauge

 

 

186.2 - 295.7 m

2.0 mm2

 

 

 

Figure 11. Reliatel conventional thermostat field wiring diagram

RTRM

WC-IOM-7 • Packaged Heat Pump

27

Page 27
Image 27
Trane WC-IOM-7 manual Rtrm