Trane OXBOX J4AH4P Series Installation Instructions Manual page 18

TO THERMOSTAT
Fig.16 INDOOR UNIT WIRING DIAGRAM FOR PSC MOTOR AC SYSTEMS AND HP SYSTEMS
Note: Description of fan speed switch
1.Default as medium speed of factory settings.
2.High speed wiring: Switch to high speed (black wire) and connect with FAN terminal, while medium speed (red wire) connect
with M2 terminal.
3.Low speed wiring: Switch to low speed (blue wire) and connect with FAN terminal, while medium speed (red wire) connect with
M1 terminal.
Terminal
Fan speed
Medium
High
Low
FOR OPTIONAL
ELECTRIC HEAT
CN3
CN6
CN8
M1
M2
FAN
CN1
CN4 CN7
FOR SINGLE AUXILARY HEAT MODE
CONNECT W1 OR CONNECT W1 WITH W2
Fan
Red
Black
Blue
FAN
MOTOR
CAPACITANCE
M1
Blue
Blue
Red
16
L1
L2
LINE VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
FACTORY OPTIONAL
LOW VOLTAGE
FACTORY STANDARD
FIELD INSTALLED
FACTORY OPTIONAL
USE COPPER CONDUCTORS ONLY WARNING
CABINET MUST BE PERMANENTLY
GROUNDED AND ALL WIRING TO CONFORM TO
I.E.C,N.E.C,C.E.C,C.L.C,AND LOCAL CODES AS
APPLICABLE REPLACEMENT WIRE MUST BE
THE SAME GAUGE AND INSULATION TYPE AS
ORIGINAL WIRE
M2
Black
Red
Black