XP25 Fan Assembly
Page 72
XP25
208/240
Voltage “IN”
L1
208/240
Voltage “OUT”
N2
N1
L2
Figure 53. XP25 4- and 5-ton filter board (EMC)
CHECKOUT:
Voltage IN should read the same value as the Voltage OUT. With filter isolated from system, resistance between L1 and
L2 should be the same as resistance between N1 and N2.
STATUS CODES:
None
ERROR CODES:
None
Outdoor Fan Operation and Checkout
OPERATION:
These units use an integrated control and motor that is
programmed for variable-capacity operation. The fan speed is
controlled by the iComfort Wi-Fi
®
thermostat.
CHECKOUT:
VAC Voltage Check
Check for 208/240 VAC power at inverter contactor (red wires) (see figure 54).
With unit operating, check for main VAC to motor and outdoor control VDC output to motor:
1. No voltage present – Check main power
2. Voltage present – Perform DC volt checks (19 -23 VDC between FAN PWM and COM) (see figure 54)
.
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