Outdoor Fan Operation And Checkout; Vac Voltage Check; Xp25 4- And 5-Ton Filter Board (Emc) - Lennox XP25-024-230-01 Installation And Service Procedure

L1
208/240
Voltage "IN"
N1
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
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)
Figure 53. XP25 4- and 5-ton filter board (EMC)
®
thermostat.
Page 72
L2
208/240
Voltage "OUT"
N2
XP25 Fan Assembly
.
XP25