Carrier ERVXXLHB1210 Series - Wiring and Logic Diagrams; Wiring Diagram Components; Logic Diagram Overview

ERV & HRV: User and Installer Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
13
A230250
Fig. 21 – Wiring / Logic Diagram
BLK
BLK
GRN
LOGIC DIAGRAM
WIRING COLOR CODE
BLK BLACK
BLU BLUE GRN GREEN
RED RED WHT WHITE
Line voltage factory wiring
Low voltage factory wiring
Low voltage Įeld wiring
(Exhaust)
BLU
RED
120VAC
60Hz
W1
GRN
1
Power
LED
J1
M3
Damper Stepper Motors
Y
M1
WHT
BLK
A1
MAIN ELECTRONIC
ASSEMBLY
M1
Power
Supply
(15VDC)
Line
Neutral
K1
G
Gf
AC
Line
Filter
J1-2
F1
High Voltage
(120VAC)
J1-1
To J2
MCU
K1
M3
Stepper
Driver
To J5
WIRING DIAGRAM
BDM
1
J2 J3 J5 J6
J7
1
111
1
J7a
J15a
1
A2
LCD
ASSEMBLY
GRN
Ve
la
n Fan Motors
BLU
RED
M2
M4
M5
(Supply)
(Supply)
(Recirc) (Exhaust)
MCU
Seria l Number
Isol on
Transformer
Motor Fuses
F3
F6
F5
F7
V W
Gf
C G
R
* Op nal AHU Wiring
(Isolated 24VAC)
OVR
LED
12V
D-
D+
GND
Main and Auxilliary
Controls Wiring
Thermistor
R1
RT1
(NTC)
Bridge
IPM
Motor 1
IPM
Motor 2
F3
F2
M2
To J3
F
F4
AHU
Relay
K1
PTC3
Isolated
Supply
(12VDC)
Isolated
Supply
(3.3VDC)
J9
J13
Logic
Supply
(3.3VDC)
PTC2
To J9
Logic
Supply
(12VDC)
M4
Stepper
Driver
To J6
M5
Stepper
Driver
To J7
PTC6 PTC4
To J13
R
TH1
To J7a
(R1)
LCD
Assembly
Isolated GND
Digital GND
To J15a
(A2)
J14
F2
F4
J16a
M6
Cooling
Fan
F7
F
M6
To J16a
F1
5A/125VAC
* 210-230 CFM
Models only
* 210-230 CFM
Models only
6
5