Installation

Low Voltage Wiring

Controls Using 24 VAC

Before installing any wire, refer to the electrical access locations on the unit submittals located on pages 7 through 9.

Ensure that the AC control wiring be- tween the controls and the unit’s ter- mination point does not exceed three

(3)ohms/conductor for the length of the run.

Note: Resistance in excess of 3-ohms per conductor may cause component failure due to insufficient AC voltage supply.

Check all loads and conductors for grounds, shorts, and mis-wiring.

Use copper conductors unless other- wise specified.

Do not run the AC low voltage wiring in the same conduit with the high volt- age power wiring.

Table 4: 24V AC conductors

Distance

Recommended

from unit to Control

Wire Size

000-460 feet

18 gauge

461-732 feet

16 gauge

733-1000 feet

14 gauge

 

 

Low voltage connection diagrams are shown in Figure 9. Optional desuper- heater fuse installation shown in Fig- ure 10.

Table 5: Deluxe controller diagnostic LEDs

Figure 9: Low voltage connection

Figure 10: Desuperheater fuse installation

Color: Green

LED1

OFF

ON

ON

ON

FLASH

ON

ON

ON

ON

ON

ON

Color: Red

 

Controller Mode

 

 

 

LED2

LED3

 

 

 

OFF

OFF

Control OFF

OFF

OFF

 

Normal/Compressor OFF

 

OFF

FLASH

Anti-short Cycle

OFF

ON

 

Normal/Compressor ON

 

ON

OFF

Brownout Condition

FLASH

ON

 

Soft Lockout (low pressure)

 

FLASH

FLASH

Soft Lockout (high pressure)

ON

ON

 

Manual Lockout (low pressure)

 

ON

FLASH

Manual Lockout (high pressure)

FLASH

OFF

 

Manual Lockout (condensate overflow)

 

ON

OFF

Compressor Disable

 

 

 

 

WSHP-SVX02A-EN

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Trane GSWD, EXWA, WPWD manual Installation Low Voltage Wiring, Controls Using 24 VAC

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