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:
T
hese 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
)
.
