Trane GSWD, EXWA Installation Low Voltage Wiring, Controls Using 24 VAC, Low voltage connection

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 17