Maytag Amana PTC A Series Service Instructions Manual page 70

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
1 2
3 4
V T 1 7
5 6
S T G
H T
A
B
V T 1 8
2 STG HT
V T 2 0
2 S T G H T
V T 1 9
2 S T G H T
NOTES:
1 WARNING: DISCONNECT POWER BEFORE SERVICING. WIRING
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.
70
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
GN
1
B R 3 6
2 S T G H T
2
ELECTRIC
HEATER
FUSE
6
BR35
BR34
BK18
LINE 1 HEATER HEATER LINE 2
7
C R G W2 Y/ W1 B RS FD RC
ON OFF
MASTER
SWITCH
REMOTE
TEMPERATURE 4
SENSOR
(Power Door - Two Stage Heat)
F
OD
FAN/COMP
TRANSFORMER
CAP
WH8
(PV)
BR14
BK11
WH15
(PV)
1
4
FAN
MOTOR
7
A
RD17
BK16
BU15
RD14
VT12
(PV)
(PV)
TERMINAL
BOARD
BK17
(PV)
BU4
(PV)
COMP FAN HIGH FAN LOWR-VALVE
8
INDOOR
SWITCH
24 VAC
ID TUBE
9
24 VAC
OD TUBE
REMOTE/STANDARD
OUTDOOR
THERMOSTAT
SWITCH
CONTROL
FRONT
5
DESK
SWITCH
PTC and PTH
POWER
VENT
MOTOR
10
Line
BU9
(PV)
2 3
5 6
3
BU2
8 9 2
(PV)
BK12
1
(PV)
ON/OFF
B
SWITCH
POWER VENT
RELAY
BU10
(PV)
FLOODBACK
PROTECTOR
BK40
BK40
BK30
3
BK30
SWITCHOVER
CHASSIS
WIRING DIAGRAM
11179501
BK20
REV
VALVE
SOLENOID
3
BK19
CONTROL
GN1
PANEL