Carrier HRVCCLHA Installation Instructions Manual page 17

CONTROL MODULE
Terminal Block No.
Terminal Block Identification
J3--- 9
J3--- 8
J3--- 7
J3--- 6
CASE 1
User changes the mode on wall control and HRV does not respond
to command (OFF, LOW, or HIGH speed). Check all wires to wall
control particularly red wire (see Table 15).
CASE 2
User changes the mode but, HRV does not respond. All indicators
flash at a rate of about once every 8 sec. Check all wires to wall
control particularly green wire. If problem still exists, test wall
control with 5 ft (1.5 m) of wire from HRV. If this works, change
wall control module inside HRV.
Table 15 – System Wiring Colors and Connections
WALL CONTROL WIRE
Color
B Black
G Green
R Red
Y Yellow
17
WALL CONTROL
Terminal No.
J1--- 4
J1--- 3
J1--- 2
J1--- 4
RESET
To reset HRV, proceed as follows:
1. Unplug HRV from 115VAC.
2. Wait 15 sec.
3. Plug HRV into 115VAC.
Terminal Identification
B
G
R
Y