Maytag Amana PTC A Series Service Instructions Manual page 69

SCHEMATICS
REMOTE THERMOSTAT OPERATION
COOLING UNIT
W/ELECTRIC HEAT
CONNECT
FUNCTION
R TO:
OFF -----
G
FAN
COOL
G, Y/W1
G,B,Y/W1*
HEAT
OR
G, W2
ON
NOTES:
WARNING: DISCONNECT POWER BEFORE SERVICING. WIRING
1
TO UNIT MUST BE PROPERLY POLARIZED (FOR 265V) AND GROUNDED.
2
RIBBED WIRE MUST BE CONNECTED AS SHOWN
3 ON HEAT PUMP MODELS ONLY.
4
ON UNITS WITH REMOTE WALL MOUNTED TEMPERATURE SENSOR.
5
ON UNITS WITH FRONT DESK CONTROL SWITCH.
6
BK18 ON LINE 2 WITH FUSE SHOWN CONNECTED FOR 265V. FOR 230V, CONNECTB
POWER CORD TO LINE 2.
7
REMOVE FOR 265V APPLICATIONS.
8
REMOVE FOR NON-HEAT PUMP APPLICATIONS.
FOR REMOTE OPERATION, SET SWITCH TO REMOTE POSITION
9
10 IF SUPPLY VOLTAGE IS 208V MOVE 240V LEAD TO 208V TAP ON TRANSFORMER.
265V TRANSFORMER IS NOT SHOWN.
Wiring is subject to change, always refer to the wiring diagram on the unit for the most up-to-date wiring.
1ST STAGE
ANTICIPATOR
CURRENT: .1
HEAT PUMP W/AUXILLARY
2ND STAGE
ELECTRIC HEAT
ANTICIPATOR
CURRENT: .2
CONNECT
FUNCTION
R TO:
-----
OFF
FAN G
G, Y/W1
COOL
1ST STAGE
G,B,Y/W1
HEAT
2ND STAGE
G, W2
HEAT
H C
YL10
RD13
RD33
S
R
C
COMP
RIBBED
2
WIRE
1 GN
ELECTRIC
HEATER
FUSE
VT12
6
BR35
BR34
BK18
LINE 1 HEATER HEATER LINE 2 COMP FAN HIGH FAN LOWR-VALVE
7
C R G W2 Y/ W1 B RS FD RC
OFF
MASTER
SWITCH
REMOTE
TEMPERATURE 4
SENSOR
(Power Door - One Stage Heat)
F
OD
FAN/COMP
TRANSFORMER
CAP
WH8
(PV)
BR14
BK11
WH15
(PV)
1 2
4 5
FAN
MOTOR
7
8
RD17 A
BK16
BU15
RD14
(PV)
(PV)
TERMINAL
BOARD
BK17
(PV)
BU4
(PV)
8
INDOOR
SWITCH
24 VAC BK40
ID TUBE BK40
9
24 VAC BK30
OD TUBE
BK30
REMOTE/STANDARD
OUTDOOR
THERMOSTAT
SWITCH
CONTROL
FRONT
5 DESK
SWITCH
PTC and PTH
POWER
VENT
MOTOR
10
Line
BU9
(PV)
3
6
3
BU2
9 2
(PV)
BK12
1
(PV)
ON/OFF
B
SWITCH
POWER VENT
RELAY
BK19
BU10
(PV)
FLOODBACK
PROTECTOR
3
SWITCHOVER
CHASSIS
WIRING DIAGRAM
11179401
BK20
REV
VALVE
SOLENOID
3
CONTROL
GN1
PANEL
69