Carrier 38AYC Series Manual

Heat Pump Wiring Diagrams
38AYC, 38BYC, 38BYG, 38YCC,
38YCG, 38YCS, 38YCW, 38YKC
Wiring Diagrams
UNIT - SIZE SERIES DIAGRAM NUMBER VOLTS FIGURE NUMBER PAGE NUMBER
38AYC-018-048 33, 34 327418-101 208/230-1-60 10 11
38AYC-060 33, 34 327417-101 208/230-1-60 9 10
38BYC-018-048 33-36 327418-101 208/230-1-60 10 11
38BYC-060 33,34 327417-101 208/230-1-60 9 10
38BYG-018-048 30 327418-101 208/230-1-60 10 11
38BYG-060 30 327417-101 208/230-1-60 9 10
38YCC-018-048 33-36 327418-101 208/230-1-60 10 11
38YCC-030 51, 52 327413-101 208/230-3-60 5 6
38YCC-036 55 327413-101 208/230-3-60 5 6
38YCC-036-060 56-69 327414-101 208/230-3-60 6 7
38YCC-036 66-69 327416-101 460-3-60 8 9
38YCC-036 65 327415-101 460-3-60 7 8
38YCC-042 66-69 327416-101 460-3-60 8 9
38YCC-048 65-67 327416-101 460-3-60 8 9
38YCC-060 65-67 327416-101 460-3-60 8 9
38YCG-018-036 31-36 327418-101 208/230-1-60 10 11
38YCG-060 32-34 327417-101 208/230-1-60 9 10
38YCS-018-048 31-34 327418-101 208/230-1-60 10 11
38YCS-060 31 327417-101 208/230-1-60 9 10
38YKC-018 32, 33 327418-101 208/230-1-60 10 11
38YKC-024-042 31-33 327418-101 208/230-1-60 10 11
38YKC-048 33,34 327418-101 208/230-1-60 10 11
38YKC-060 31,32 327417-101 208/230-1-60 9 10
38YCW-018 33, 34 327207-101 208/230-1-60 1 2
38YCW-024 33, 34 327207-101 208/230-1-60 1 2
38YCW-030 32, 33 327207-101 208/230-1-60 1 2
38YCW-036 34, 35 327207-101 208/230-1-60 1 2
38YCW-042 34, 35 327207-101 208/230-1-60 1 2
38YCW-048 32, 33 327207-101 208/230-1-60 1 2
38YCW-060 32 327209-101 208/230-1-60 3 4
38YCW-030 52, 53 327216-101 208/230-3-60 4 5
38YCW-036 55, 56 327208-101 208/230-3-60 2 3
38YCW-042 56, 57 327208-101 208/230-3-60 2 3
38YCW-048 54, 55 327208-101 208/230-3-60 2 3
38YCW-060 54 327208-101 208/230-3-60 2 3
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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Tab 3d 2e PC 101 Catalog No. 38A-1W Printed in U.S.A. Form 38A-1W Pg 1 5-05 Replaces: New

Fig. 1—Label Wiring 327207-101
A05014
SPEED
UP
THIS DEFROST CONTROL BOARD CONTAINS A FIVE MINUTE SHORT CYCLE
PROTECTOR. A FIVE MINUTE DELAY WILL OCCUR BETWEEN COMPRESSOR
OFF/ON CYCLES.
* MAY BE FACTORY OR FIELD INSTALLED
COMP COMPRESSOR
CTD COMPRESSOR TIME DELAY
CONT CONTACTOR
CB CIRCUIT BOARD
DFT DEFROST THERMOSTAT
DR DEFROST RELAY AND CIRCUITRY
*HPS HIGH PRESSURE SWITCH
*LPS LOW PRESSURE SWITCH
OFM OUTDOOR FAN MOTOR
RVS REVERSING VALVE SOLENOID
RVSR REVERSING VALVE SOLENOID RELAY
*SC START CAPACITOR
*SR START RELAY
*ST START THERMISTOR
FIELD SELECTABLE OPTIONS FOR TIME PERIOD BETWEEN DEFROST
CYCLES (MINUTES)
-LEGEND-
123 123 123 123
30 MINUTES 60 MINUTES (DEFAULT) 90 MINUTES 120 MINUTES
120
30
OR OR OR
60
90
DIP SWITCH SETTINGS
123
QUIET
SHIFT
ON
OFF
(DEFAULT
NOTE
1) MOMENTARILY SHORT PINS AND RELEASE TO BYPASS COMPRESSOR OFF DELAY.
2) SHORT FOR 5+ SEC. AND RELEASE FOR FORCED DEFROST.
3) PERMANENT SHORT WILL BE IGNORED. DEFROST WILL TERMINATE IN 30 SEC. IF
DFT OPEN. DEFROST WILL TERMINATE NORMALLY IF DFT IS XLOSED.
FACTORY POWER WIRING
FIELD POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
CONDUCTOR ON CIRCUIT BOARD
COMPONENT CONNECTION
1/4-INCH QUICK CONNECT TERMINALS
FIELD SPLICE
JUNCTION
AUXR AUXILLARY HEAT RELAY
CAP CAPACITOR (RUN)
*CH CRANKCASE HEATER
*CHS CRANKCASE HEATER SWITCH
- NOTES -
1. Compressor damage may occur
if system is over charged.
2. This unit is factory charged with
R-22 in accordance with the
amount shown on the rating plate.
The charge is adequate for most
systems using matched coils and
tubing not over 15 feet long. The
best performance will be
achieved when the
unit operates with a suction gas
superheat at the compressor inlet
of 5ºF at normal rating
conditions of the air conditioning
and refrigeration institute (ARI).
This chart may be used to
approximate the charge if ARI
rating conditions cannot be
obtained. ARI rating conditions
are equivalent to DOE test "A"
conditions. See product data
literature for required indoor air
flow rates and for use of line
lengths over 15 ft.
3. Relieve pressure and recover all
refrigerant before system repair or
final unit disposal. Use all service
ports and open all flow-control
devices, including solenoid valves.
CAU TIO N
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
327207-101 REV. A
CONNECTION DIAGRAM
SCHEMATIC DIAGRAM
(LADDER FORM)
1. Compressor and fan motor furnished with inherent thermal protection.
2. To be wired in accordance with National Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24 V circuit, min. 40 VA required.
4. Use copper conductors only, from disconect to unit.
5. Must use thermostat and sub-base as stated in pre-sale literature.
6. If indoor section has a transformer with a grounded secondary, connect the
grounded side to "C" on the circuit board.
7. If any of the original wire, as supplied, must be replaced, use the same or
equivalent wire.
8. Check all electrical connections inside control box for tightness.
9. Do not attempt to operate unit until service valves have been opened.
10. When LPS and HPS are not required, a jumper will be installed between
Y and T1 on the defrost board.
11. Use conductors suitable for at least 75ºC (167ºF).
+t°
BLU
*ST
YEL
BLK
*CHS
YEL
YEL
5
2
1
YEL
GLER W2 OYC
TERMINAL BLOCK
INDOOR UNIT
RED
WHT
ORN
YEL
BLK
CB
G W3 LER W2 OYC
BLU
BRN
YEL
*HPS
*LPS
2323
21
11
BLU
S
C
R
YEL
BRN
L2
L1
BLK
CONT
EQUIP
GND
INDOOR THERMOSTAT (NOTE#5)
SUPPLY
POWER
208/230 1Ø
BLK
BRN
OFM
*SC
*SR
BLU
YEL
CAP
BLK
COMP
YEL
BLK
BLK
*CH
BLK
BLU
DR
OF1
OF2
CY OW2R
LOGIC
Y
T1
LOGIC
T2
60 90
120 30
SPEED
UP
R
C
C
DFT
O
BRN
YEL
CESO130076-01
CTD
ORG
ORG or
RVS
BLK
BLK
DFT
BLK
or
PNK
PNK
BLK
ORG
ORG
or
PNK or
PNK
+t°
*ST
*CHS
*CH
23
R
C
S
52
1
LOGIC
LOGIC
C
CONT
T2
CTD
T1
C
*HPS
*LPS
Y
Y
DFT
DFT
C
RVS
R
R
W2
OO
OF1 OF2
DR
L2
23
CONT
OFM
CAP
F
C
COMP
H
*SC
*SR
21
11
L1
CONT
RVSR
AUXR
RVSR
AUXR
GND
EQUIP
2

Fig. 2—Label Wiring 327208-101
A05015
SPEED
UP
THIS DEFROST CONTROL BOARD CONTAINS A FIVE MINUTE SHORT CYCLE PROTECTOR.
A FIVE MINUTE DELAY WILL OCCUR BETWEEN COMPRESSOR OFF/ON CYCLES.
* MAY BE FACTORY OR FIELD INSTALLED
FIELD SELECTABLE OPTIONS FOR TIME PERIOD BETWEEN DEFROST
CYCLES (MINUTES)
-LEGEND-
123 123 123 123
30 MINUTES 60 MINUTES (DEFAULT) 90 MINUTES 120 MINUTES
120
30
OR OR OR
60
90
DIP SWITCH SETTINGS
123
QUIET
SHIFT
ON
NOTE
1) MOMENTARILY SHORT PINS AND RELEASE TO BYPASS COMPRESSOR OFF DELAY.
2) SHORT FOR 5+ SEC. AND RELEASE FOR FORCED DEFROST.
3) PERMANENT SHORT WILL BE IGNORED. DEFROST WILL TERMINATE IN 30 SEC. IF
DFT OPEN. DEFROST WILL TERMINATE NORMALLY IF DFT IS CLOSED.
FACTORY POWER WIRING
FIELD POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
CONDUCTOR ON CIRCUIT BOARD
COMPONENT CONNECTION
1/4-INCH QUICK CONNECT TERMINALS
FIELD SPLICE
JUNCTION
- NOTES -
1. Compressor damage may occur
if system is over charged.
2. This unit is factory charged with
R-22 in accordance with the
amount shown on the rating plate.
The charge is adequate for most
systems using matched coils and
tubing not over 15 feet long. The
best performance will be
achieved when the
unit operates with a suction gas
superheat at the compressor inlet
of 5ºF at normal rating
conditions of the air conditioning
and refrigeration institute (ARI).
This chart may be used to
approximate the charge if ARI
rating conditions cannot be
obtained. ARI rating conditions
are equivalent to DOE test "A"
conditions. See product data
literature for required indoor air
flow rates and for use of line
lengths over 15 ft.
3. Relieve pressure and recover all
refrigerant before system repair or
final unit disposal. Use all service
ports and open all flow-control
devices, including solenoid valves.
CAU TIO N
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
327208-101 REV. A
CONNECTION DIAGRAM
1. Compressor and fan motor furnished with inherent thermal protection.
2. To be wired in accordance with National Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24 V circuit, min. 40 VA required.
4. Use copper conductors only, from disconect to unit.
5. Must use thermostat and sub-base as stated in pre-sale literature.
6. If indoor section has a transformer with a grounded secondary, connect the
grounded side to "C" on the circuit board.
7. If any of the original wire, as supplied, must be replaced, use the same or
equivalent wire.
8. Check all electrical connections inside control box for tightness.
9. Do not attempt to operate unit until service valves have been opened.
10. When LPS and HPS are not required, a jumper will be installed between
Y and T1 on the defrost board.
11. It is imperative to connect 3Ø field power to unit with correct phasing. The Phase
Rotation Monitor will not allow the contactor to be energized if the phasing is not
correct. If phasing is reversed, simply interchange any two of the three power
connections on the field side.
12. Use conductors suitable for at least 75ºC (167ºF).
GLER W2 OYC
TERMINAL BLOCK
INDOOR UNIT
RED
WHT
ORN
YEL
BLK
G W3 LER W2 OYC
INDOOR THERMOSTAT
(NOTE#5)
CB
DR
OF1
OF2
CY OW2R
LOGIC
Y
T1
LOGIC
T2
60 90
120 30
SPEED
UP
R
C
C
DFT
O
BRN
YEL
CESO130076-01
CTD
COMP
208/230 3Ø
POWER
SUPPLY
GND
EQUIP
L1
L3
*LPS
*HPS
BLU
ALERT !
(NOTE 11)
*CH
L2
T2
T1
T3
BRN
BLK
BLK
BLK
CAP
*CHS
CONT
11 21
13 23
BLU
BRN
BLK
YEL
OFM
YEL
BLK
L3
L1 L2
CONT 24V COM
PRM
BLU
BLK YEL
GRY
BRN
YEL
BLK
BLU
YEL
YEL
YEL
BLK
BLK
ORG
ORG or
RVS
BLK
BLK
DFT
BLK
or
PNK
PNK
BLK
ORG
ORG
or
PNK or
PNK
P R M L E D IN D ICA T O R
OFF: NO 24VAC
ON: OK
FLASH: PHASE PROBLEM
NO T E
(LADDER FORM)
SCHEMATIC DIAGRAM
CONT
L1
11 21
EQUIP
GND
OFM
L3
DR
OF2OF1
CAP
COMP
T2
T1
T3
*CHS
L2
L3 L1
L2
PRM
CONT
23 13
*CH
LOGIC
C CONT
T2
CTD
T1
C
Y
Y
C
RVS
R
R
W2
OO
RVSR
AUXR
RVSR
AUXR
CONT COM
PRM
24V
LOGIC
DFT DFT
*HPS
*LPS
AUXR
CAP
*CH
*CHS
COMP
CTD
CONT
CB
DFT
DR
*HPS
*LPS
OFM
PRM
RVS
RVSR
*SC
*SR
*ST
AUXILLARY HEAT RELAY
CAPACITOR (RUN)
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
COMPRESSOR
COMPRESSOR TIME DELAY
CONTACTOR
CIRCUIT BOARD
DEFROST THERMOSTAT
DEFROST RELAY AND CIRCUITRY
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
OUTDOOR FAN MOTOR
PHASE ROTATION MONITOR
REVERSING VALVE SOLENOID
REVERSING VALVE SOLENOID RELAY
START CAPACITOR
START RELAY
START THERMISTOR
OFF
(DEFAULT)
3

Fig. 3—Label Wiring 327209-101
A05016
SPEED
UP
THIS DEFROST CONTROL BOARD CONTAINS A FIVE MINUTE SHORT CYCLE PROTECTOR.
A FIVE MINUTE DELAY WILL OCCUR BETWEEN COMPRESSOR OFF/ON CYCLES.
* MAY BE FACTORY OR FIELD INSTALLED
FIELD SELECTABLE OPTIONS FOR TIME PERIOD BETWEEN DEFROST
CYCLES (MINUTES)
-LEGEND-
123 123 123 123
30 MINUTES 60 MINUTES (DEFAULT) 90 MINUTES 120 MINUTES
120
30
OR OR OR
60
90
DIP SWITCH SETTINGS
123
QUIET
SHIFT
ON
OFF
DEFAULT
NOTE
1) MOMENTARILY SHORT PINS AND RELEASE TO BYPASS COMPRESSOR OFF DELAY.
2) SHORT FOR 5+ SEC. AND RELEASE FOR FORCED DEFROST.
3) PERMANENT SHORT WILL BE IGNORED. DEFROST WILL TERMINATE IN 30 SEC. IF
DFT OPEN. DEFROST WILL TERMINATE NORMALLY IF DFT IS CLOSED.
FACTORY POWER WIRING
FIELD POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
CONDUCTOR ON CIRCUIT BOARD
COMPONENT CONNECTION
1/4-INCH QUICK CONNECT TERMINALS
FIELD SPLICE
JUNCTION
- NOTES -
1. Compressor damage may occur
if system is over charged.
2. This unit is factory charged with
R-22 in accordance with the
amount shown on the rating plate.
The charge is adequate for most
systems using matched coils and
tubing not over 15 feet long. The
best performance will be
achieved when the
unit operates with a suction gas
superheat at the compressor inlet
of 5ºF at normal rating
conditions of the air conditioning
and refrigeration institute (ARI).
This chart may be used to
approximate the charge if ARI
rating conditions cannot be
obtained. ARI rating conditions
are equivalent to DOE test "A"
conditions. See product data
literature for required indoor air
flow rates and for use of line
lengths over 15 ft.
3. Relieve pressure and recover all
refrigerant before system repair or
final unit disposal. Use all service
ports and open all flow-control
devices, including solenoid valves.
CAU TIO N
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
327209-101 REV. A
CONNECTION DIAGRAM
1. Compressor and fan motor furnished with inherent thermal protection.
2. To be wired in accordance with National Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24 V circuit, min. 40 VA required.
4. Use copper conductors only, from disconect to unit.
5. Must use thermostat and sub-base as stated in pre-sale literature.
6. If indoor section has a transformer with a grounded secondary, connect the
grounded side to "C" on the circuit board.
7. If any of the original wire, as supplied, must be replaced, use the same or
equivalent wire.
8. Check all electrical connections inside control box for tightness.
9. Do not attempt to operate unit until service valves have been opened.
10. When LPS and HPS are not required, a jumper will be installed between
Y and T1 on the defrost board.
11. Use conductors suitable for at least 75ºC (167ºF).
AUXR
CAP
*CH
*CHS
COMP
CTD
CONT
CB
DFT
DR
*HPS
*LPS
OFM
RVS
RVSR
*SC
*SR
*ST
AUXILLARY HEAT RELAY
CAPACITOR (RUN)
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
COMPRESSOR
COMPRESSOR TIME DELAY
CONTACTOR
CIRCUIT BOARD
DEFROST THERMOSTAT
DEFROST RELAY AND CIRCUITRY
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
OUTDOOR FAN MOTOR
REVERSING VALVE SOLENOID
REVERSING VALVE SOLENOID RELAY
START CAPACITOR
START RELAY
START THERMISTOR
YEL
GLER W2 OYC
TERMINAL BLOCK
INDOORUNIT
RED
WHT
ORN
YEL
BLK
CB
G W3 LER W2 OYC
BLU
YEL
*HPS
*LPS
INDOOR THERMOSTAT (NOTE #5)
BLK
BLU
DR
OF1
OF2
CY OW2R
LOGIC
Y
T1
LOGIC
T2
60 90
120 30
SPEED
UP
R
C
C
DFT
O
BRN
YEL
CESO130076-01
CTD
ORG
ORG or
RVS
BLK
BLK
DFT
BLK
or
PNK
PNK
BLK
ORG
ORG
or
PNK or
PNK
BLK
*CH
BLK
BLK
YEL
COMP
BLK
CAP
YEL
BLU
*SR
*SC
OFM BRN
208/230 1Ø
POWER
SUPPLY
GND
EQUIP
CONT
BLK
L1
L2
BRN
YEL
S
C
R
BLU
11 21
13 23
BRN
YEL
12
5
YEL
*CHS
BLK
SCHEMATIC DIAGRAM (LADDER FORM)
*CHS
*CH
R
C
S
52
1
LOGIC
LOGIC
C
CONT
T2
CTD
T1
C
*HPS
*LPS
Y
Y
DFT
DFT
C
RVS
R
R
W2
OO
OF1 OF2
DR
OFM
CAP
F
C
COMP
H
*SC
*SR
21
11
L1
CONT
RVSR
AUXR
RVSR
AUXR
GND
EQUIP CONT
23
L2
13
4

Fig. 4—Label Wiring 327216-101
A05017
THIS DEFROST CONTROL BOARD CONTAINS A FIVE MINUTE SHORT CYCLE PROTECTOR.
A FIVE MINUTE DELAY WILL OCCUR BETWEEN COMPRESSOR OFF/ON CYCLES.
* MAY BE FACTORY OR FIELD INSTALLED
-LEGEND-
NOTE
FACTORY POWER WIRING
FIELD POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
CONDUCTOR ON CIRCUIT BOARD
COMPONENT CONNECTION
1/4-INCH QUICK CONNECT TERMINALS
FIELD SPLICE
JUNCTION
- NOTES -
1. Compressor damage may occur
if system is over charged.
2. This unit is factory charged with
R-22 in accordance with the
amount shown on the rating plate.
The charge is adequate for most
systems using matched coils and
tubing not over 15 feet long. The
best performance will be
achieved when the
unit operates with a suction gas
superheat at the compressor inlet
of 5ºF at normal rating
conditions of the air conditioning
and refrigeration institute (ARI).
This chart may be used to
approximate the charge if ARI
rating conditions cannot be
obtained. ARI rating conditions
are equivalent to DOE test "A"
conditions. See product data
literature for required indoor air
flow rates and for use of line
lengths over 15 ft.
3. Relieve pressure and recover all
refrigerant before system repair or
final unit disposal. Use all service
ports and open all flow-control
devices, including solenoid valves.
CAU TIO N
327216-101 REV. A
CONNECTION DIAGRAM
1. Compressor and fan motor furnished with inherent thermal protection.
2. To be wired in accordance with National Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24 V circuit, min. 40 VA required.
4. Use copper conductors only, from disconect to unit.
5. Must use thermostat and sub-base as stated in pre-sale literature.
6. If indoor section has a transformer with a grounded secondary, connect the
grounded side to "C" on the circuit board.
7. If any of the original wire, as supplied, must be replaced, use the same or
equivalent wire.
8. Check all electrical connections inside control box for tightness.
9. Do not attempt to operate unit until service valves have been opened.
10. Use conductors suitable for at least 75ºC (167ºF).
11. It is imperative to connect 3Ø field power to unit with correct phasing. Wrong
phasing will cause reverse rotation of scroll compressor which will result in reduced
current draw, elevated noise level and improper operation. If rotation is reversed,
simply interchange any two of the three power connections on the field side.
AUXR
CAP
*CH
*CHS
COMP
CTD
CONT
CB
DFT
DR
*HPS
*LPS
OFM
RVS
RVSR
AUXILLARY HEAT RELAY
CAPACITOR (RUN)
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
COMPRESSOR
COMPRESSOR TIME DELAY
CONTACTOR
CIRCUIT BOARD
DEFROST THERMOSTAT
DEFROST RELAY AND CIRCUITRY
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
OUTDOOR FAN MOTOR
REVERSING VALVE SOLENOID
REVERSING VALVE SOLENOID RELAY
SCHEMATIC DIAGRAM (LADDER FORM)
SPEED
UP
FIELD SELECTABLE OPTIONS FOR TIME PERIOD BETWEEN DEFROST
CYCLES (MINUTES)
123 123 123 123
30 MINUTES 60 MINUTES (DEFAULT) 90 MINUTES 120 MINUTES
120
30
OR OR OR
60
90
DIP SWITCH SETTINGS
123
QUIET
SHIFT
ON
1) MOMENTARILY SHORT PINS AND RELEASE TO BYPASS COMPRESSOR OFF DELAY.
2) SHORT FOR 5+ SEC. AND RELEASE FOR FORCED DEFROST.
3) PERMANENT SHORT WILL BE IGNORED. DEFROST WILL TERMINATE IN 30 SEC. IF
DFT OPEN. DEFROST WILL TERMINATE NORMALLY IF DFT IS CLOSED.
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
OFF
(DEFAULT)
BLK
DR
OF1
OF2
CY OW2R
LOGIC
Y
T1
LOGIC
T2
60 90
120 30
SPEED
UP
R
C
C
DFT
O
CESO130076-01
CTD
BLK
208/230 3Ø
POWER
SUPPLY
GND
EQUIP
L1
L3
BRN
ALERT !
(NOTE 11) *CH
L2
YEL
T1
T3
BLU
BLK
YEL
BLK
BLK
CONT
11 21
13 23
BLK
T2
YEL
BRN
YEL
COMP
OFM
YEL
YEL
BRN
CAP
*CHS
*LPS *HPS
BLU
BLU
YEL
ORG
ORG or
RVS
BLK
BLK
DFT BLK
or
PNK
PNK
BLK
ORG
ORG
or
PNK or
PNK
BLK
INDOOR THERMOSTAT (NOTE #5)
TERMINAL BLOCK
INDOOR UNIT
GLER W2 OYC
RED
WHT
ORN
YEL
BLK
CB
G W3 LER W2 OYC
LOGIC
LOGIC
C
CONT
T2
CTD
T1
C
Y
Y
DFT
DFT
C
RVS
R
R
W2
OO
RVSR
AUXR
RVSR
AUXR
CONT
L1
11 21
EQUIP
GND
OFM
CONT
23
L3
DR
OF2OF1
13
*CH
CAP
COMP
T2
T1
T3
L2
*CHS
*HPS
*LPS
5

Fig. 5—Label Wiring 327413-101 A05018
FIELD SELECTED TIME PERIOD
BETWEEN DEFROST CYCLES (MINUTES)
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
HEAT CYCLE: 90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
50 MIN. ACCELERATED TO 12 SEC.
30 MIN. ACCELERATED TO 7 SEC.
10 MIN. ACCELERATED TO 2 SEC.
DEFROST CYCLE:
90
30
SPEED
UP
FACTORYPOWERWIRING
FIELDPOWERWIRING
FACTORYCONTROLWIRING
FIELDCONTROLWIRING
CONDUCTORONCIRCUIT
BOARD
COMPONENTCONNECTION
1/4-INCHQUICKCONNECT
TERMINALS
FIELDSPLICE
JUNCTION
CAPACITOR(DUALRUN)
CRANKCASEHEATER
COMPRESSOR
CONTACTOR
CIRCUITBOARD
DEFROSTTHERMOSTAT
DEFROSTRELAYAND
CIRCUITRY
DISCHARGETEMP.SWITCH
HIGHPRESSURESWITCH
LOWPRESSURESWITCH
OUTDOORFANMOTOR
REVERSINGVALVE
SOLENOID
CAP
*CH
COMP
CONT
CB
DFT
DR
*DTS
*HPS
*LPS
OFM
RVS
*MAYBEFACTORYORFIELDINSTALLED.
-LEGEND-
327413-101 REV. B
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
1. Compressor damage may occur if system is over
charged.
2. This unit is factory charged with R-22 in accordance
with the amount shown on the rating plate. The
charge is adequate for most systems using
matched coils and tubing not over 15 feet long.
The best performance will be achieved when the
unit operates with a suction gas superheat at the
compressor inlet of 5 ºF at normal rating conditions
of the air conditioning and refrigeration, institute
(ARI). This chart may be used to approximate the
charge if ARI rating conditions cannot be obtained.
ARI rating conditions are equivalent to DOE test "A"
conditions. See product data literature for required
indoor air flow rates and for use of line lengths over
15 Ft.
3. Relieve pressure and recover all refrigerant before
system repair or final unit disposal. Use all service
ports and open all flow-control devices, including
solenoid valves.
1. Compressor and fan motor furnished with
inherent thermal protection.
2. To be wired in accordance with National
Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24V circuit, min. 40 VA required.
4. Use copper conductors only, from disconnect
to unit.
5. Must use thermostat and sub-base as stated
in pre-sale literature.
6. If indoor section has a transformer with a
grounded secondary, connect the grounded
side to "C" on the circuit board.
7. If any of the original wire, as supplied, must
be replaced, use the same or equivalent wire.
8. Check all electrical connections inside control
box for tightness.
9. Do not attempt to operate unit until service
valves have been opened.
10. It is imperative to connect 3Ø field power
to unit with correct phasing. The Phase
Rotation Monitor will not allow the contactor
to be energized if thephasing is not correct.
If phasing is reversed, simply interchange any two
of the three power connections on the field side.
11. Use conductors suitable for at least 75ºC (167ºF).
NOTES:
CAU TIO N
COOLING ONLY
PROCEDURE
EVAPORATOR ENTERING AIR ºF WB.
TEMP °F
OUTDOOR
50
TABLE I - SUPERHEAT CHARGING TABLE
(SUPERHEAT ºF AT LOW-SIDE SERVICE PORT)
52 54 56 58 60 62 64 66 68 70 72 74 76
55 9 37
60 7
65 -- 6
70 -- -- 7
75 -- -- -- 6 9 12 15 18 21 24 28 31 34 37
80 -- -- -- -- 5 8 12 15 18 21 25 28 31 35
85 -- -- -- -- -- -- 8 11 15 19 22 26
90 -- -- -- -- -- -- --------------
-- -- -- -- -- -- --
--
--
--
--
--
----
--
----
--
----
--
------
--
-- --
--
5 9 13 16 20 24 27 31
95 6
100 8 12 15 20 23 27
5 9 13 17 22 26
68
--
--
-- --
-- -- --
105
110
115
918987858381797775
40 898785838179777573
38 878583817977757371
36 858381797775737169
34 838179777573716967
32 817977757371696765
30 797775737169676563
28 777573716967656361
26 757371696765636159
24 737169676563615957
22 71
6967656361595755
20 696765636159575553
18 676563615957555351
16 656361595755535149
14 636159575553514947
12 615957555351494745
10 595755535149474543
8575553514947454341
6555351494745434139
4535149474543413937
25149
47454341393735
0
85.782.479.276.073.070.067.164.2
SUCTION PRESSUR E AT SERVICE PORT PSIG.
TEMP. °F
61.5
SUPERHEAT
45
43
41
39
42
40
35
32
29 4038
35
3330 38
3633 3633 30
27 30
2724
33
18 29
30
22 25
14
10
23
2520
18
14
1511
2723
23
18
1512
10 26
23
20
17
14
12
24
21
19
16
13
10 21
19
16
13
10
TABLEII - REQUIREDSUCTION TUBETEMPERATURE ºF
(MEASUREDATLOW-SIDESERVICEPORT)
L3
L2
L1
GND
EQUIP
CONT
11 21
T3
T1
T2
OF2OF1
DR CONT
*CH
23 13
OFM
COMP
CAP
C
RVS
OO
W2
RR
Y
Y
C
DFT
DFT
DR
T1 C
LOGIC
*HPS
*LPS *DTS
CONT
BRN
OFM BRN
RED or BLK YEL
BLK
BLU
L2
A LE R T !
(
N OTE #11 )
23
13
21
11
L3
L1
EQUIP GND
SUPPLY
POWER
208/230 3Ø
CONT
CAP
COMP
T2
T1 T3
*CH
BLK
RED
or
BLK
BLK
YEL
ORG
ORG or
or
RVS
BLK
BLK
DFT BLK
or
PNK
PNK
or
BLK
WHT
YEL
CB
DR
OF1
OF2
CY OW2R
Y
T1
LOGIC
50 90
30
SPEED
UP
R
C
C
DFT
O
PNK PNK
HK32EA001
*LPS *HPS
YEL
YEL BLU
BRN
YEL
ORG
ORG
GLER W2 OYC
TERMINAL BLOCK
INDOORUNIT
RED
ORNBLK
G W3 LER W2 OYC
INDOOR THERMOSTAT (NOTE #5)
YEL
or
BLU
BLK YEL
1. Operate unit a minimum of
10 minutes before checking
charge.
2. Measure suction pressure
by attaching a gage to
suction valve service port.
3. Measure suction temperature
by attaching an accurate
thermistor type or electronic
thermometer to the suction
line at service valve.
4. Measure outdoor air dry-bulb
temperature with a
thermometer.
5. Measure indoor air (entering
indoor coil) wet bulb
temperature with a sling
psychrometer.
6. Refer to table I. Find out-
door temperature and
evaporator entering air wet-
bulb temperature at this
intersection note the super-
heat.
7. Refer to table II. Find super-
heat temperature located in
step 6 and suction pressure,
at this intersection note
suction line temperature.
8. If unit has a higher suction
line temperature than charted
temperature, add refrigerant
until charted temperature
is reached.
9. If unit has a lower suction
line temperature than charted
temperature, remove and
recover refrigerant until
charted temperature is
reached.
10. If outdoor air temperature
or pressure at suction valve
changes, charge to new
suction line temperature
indicated on chart.
11. This procedure is valid when
indoor air flow is within
+/- 21% of its rated cfm.
50
**
**
** BOARD MAY HAVE 60
AS MIDDLE SELECTION
**
6

Fig. 6—Label Wiring 327414-101 A05019
FACTORYPOWERWIRING
FIELDPOWERWIRING
FACTORYCONTROLWIRING
FIELDCONTROLWIRING
CONDUCTORONCIRCUIT
BOARD
COMPONENTCONNECTION
1/4-INCHQUICKCONNECT
TERMINALS
FIELDSPLICE
JUNCTION
CAPACITOR(DUALRUN)
CRANKCASEHEATER
COMPRESSOR
CONTACTOR
CIRCUITBOARD
DEFROSTTHERMOSTAT
DEFROSTRELAYAND
CIRCUITRY
DISCHARGETEMP.SWITCH
HIGHPRESSURESWITCH
LOWPRESSURESWITCH
OUTDOORFANMOTOR
PHASEROTATIONMONITOR
REVERSINGVALVE
SOLENOID
CAP
*CH
COMP
CONT
CB
DFT
DR
*DTS
*HPS
*LPS
OFM
PRM
RVS
*MAYBEFACTORYORFIELDINSTALLED.
-LEGEND-
327414-101 REV. B
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
PRM LED INDICATOR
NOTE
OFF: NO24VAC
ON: OK
FLASH: PHASEPROBLEM
1. Compressor damage may occur if system is over
charged.
2. This unit is factory charged with R-22 in accordance
with the amount shown on the rating plate. The
charge is adequate for most systems using
matched coils and tubing not over 15 feet long.
The best performance will be achieved when the
unit operates with a suction gas superheat at the
compressor inlet of 5 ºF at normal rating conditions
of the air conditioning and refrigeration, institute
(ARI). This chart may be used to approximate the
charge if ARI rating conditions cannot be obtained.
ARI rating conditions are equivalent to DOE test "A"
conditions. See product data literature for required
indoor air flow rates and for use of line lengths over
15 Ft.
3. Relieve pressure and recover all refrigerant before
system repair or final unit disposal. Use all service
ports and open all flow-control devices, including
solenoid valves.
1. Compressor and fan motor furnished with
inherent thermal protection.
2. To be wired in accordance with National
Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24V circuit, min. 40 VA required.
4. Use copper conductors only, from disconnect
to unit.
5. Must use thermostat and sub-base as stated
in pre-sale literature.
6. If indoor section has a transformer with a
grounded secondary, connect the grounded
side to "C" on the circuit board.
7. If any of the original wire, as supplied, must
be replaced, use the same or equivalent wire.
8. Check all electrical connections inside control
box for tightness.
9. Do not attempt to operate unit until service
valves have been opened.
10. It is imperative to connect 3Ø field power
to unit with correct phasing. The Phase
Rotation Monitor will not allow the contactor
to be energized if thephasing is not correct.
If phasing is reversed, simply interchange any two
of the three power connections on the field side.
11. Use conductors suitable for at least 75ºC (167ºF).
NOTES:
CAU TIO N
COOLING ONLY
PROCEDURE
EVAPORATOR ENTERING AIR ºF WB.
TEMP °F
OUTDOOR
50
TABLE I - SUPERHEAT CHARGING TABLE
(SUPERHEAT ºF AT LOW-SIDE SERVICE PORT)
52 54 56 58 60 62 64 66 68 70 72 74 76
55 9 37
60 7
65 -- 6
70 -- -- 7
75 -- -- -- 6 9 12 15 18 21 24 28 31 34 37
80 -- -- -- -- 5 8 12 15 18 21 25 28 31 35
85 -- -- -- -- -- -- 8 11 15 19 22 26
90 -- -- -- -- -- -- --------------
-- -- -- -- -- -- --
--
--
--
--
--
----
--
----
--
----
--
------
--
-- --
--
5 9 13 16 20 24 27 31
95 6
100 8 12 15 20 23 27
5 9 13 17 22 26
68
--
--
-- --
-- -- --
105
110
115
918987858381797775
40 898785838179777573
38 878583817977757371
36 858381797775737169
34 838179777573716967
32 817977757371696765
30 797775737169676563
28 777573716967656361
26 757371696765636159
24 737169676563615957
22 71
6967656361595755
20 696765636159575553
18 676563615957555351
16 656361595755535149
14 636159575553514947
12 615957555351494745
10 595755535149474543
8575553514947454341
6555351494745434139
4535149474543413937
25149
47454341393735
0
85.782.479.276.073.070.067.164.2
SUCTION PRESSUR E AT SERVICE PORT PSIG.
TEMP. °F
61.5
SUPERHEAT
45
43
41
39
42
40
35
32
29 4038
35
3330 38
3633 3633 30
27 30
2724
33
18 29
30
22 25
14
10
23
2520
18
14
1511
2723
23
18
1512
10 26
23
20
17
14
12
24
21
19
16
13
10 21
19
16
13
10
TABLEII - REQUIREDSUCTION TUBETEMPERATURE ºF
(MEASUREDATLOW-SIDESERVICEPORT)
L3
L2
L1
GND
EQUIP
CONT
11 21
T3
T1
T2
OF2OF1
DR CONT
*CH
23 13
OFM
COMP
CAP
C
RVS
OO
W2
RR
YY
C
DFT
DFT
DR
*LPS *DTS *HPS
T1
C
CONT
LOGIC
L3L1 L2
PRM
CONT COM
PRM
24V
OFM
L2
A LE R T !
(
N OTE #11 )
23
13
21
11
L3
L1
EQUIP GND
SUPPLY
POWER
208/230 3Ø
CONT
CAP
COMP
T2
T1 T3
BLK
*DTS
BLK BLU
YEL
*HPS
*LPS
*CH
RED
BLK
L3
L1 L2
CONT 24V COM
PRM
BLK YEL YEL
or
RED or BLK
YEL
YEL
BLK
BRN
YEL
BLK
BLK
BLU
YEL or BLU
BRN
BRN
BLU
GRY
YEL or BLU
YEL
ORG
ORG or
or
RVS
BLK
BLK
DFT BLK
or
PNK
PNK
or
BLK
WHT
YEL
CB
DR
OF1
OF2
CY OW2R
Y
T1
LOGIC
90
30
SPEED
UP
R
C
C
DFT
O
PNK PNK
BRN
YEL
ORG
ORG
GLER W2 OYC
TERMINAL BLOCK
INDOOR UNIT
RED
ORNBLK
G W3 LER W2 OYC
INDOOR THERMOSTAT (NOTE #5)
BLK
HK32EA001
1. Operate unit a minimum of
10 minutes before checking
charge.
2. Measure suction pressure
by attaching a gage to
suction valve service port.
3. Measure suction temperature
by attaching an accurate
thermistor type or electronic
thermometer to the suction
line at service valve.
4. Measure outdoor air dry-bulb
temperature with a
thermometer.
5. Measure indoor air (entering
indoor coil) wet bulb
temperature with a sling
psychrometer.
6. Refer to table I. Find out-
door temperature and
evaporator entering air wet-
bulb temperature at this
intersection note the super-
heat.
7. Refer to table II. Find super-
heat temperature located in
step 6 and suction pressure,
at this intersection note
suction line temperature.
8. If unit has a higher suction
line temperature than charted
temperature, add refrigerant
until charted temperature
is reached.
9. If unit has a lower suction
line temperature than charted
temperature, remove and
recover refrigerant until
charted temperature is
reached.
10. If outdoor air temperature
or pressure at suction valve
changes, charge to new
suction line temperature
indicated on chart.
11. This procedure is valid when
indoor air flow is within
+/- 21% of its rated cfm.
FIELD SELECTED TIME PERIOD
BETWEEN DEFROST CYCLES (MINUTES)
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
HEAT CYCLE: 90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
50 MIN. ACCELERATED TO 12 SEC.
30 MIN. ACCELERATED TO 7 SEC.
10 MIN. ACCELERATED TO 2 SEC.
DEFROST CYCLE:
90
30
SPEED
UP
50
**
**
50
**
**BOARD MAY HAVE 60
AS MIDDLE SELECTION
7

Fig. 7—Label Wiring 327415-101 A05020
FACTORYPOWERWIRING
FIELDPOWERWIRING
FACTORYCONTROLWIRING
FIELDCONTROLWIRING
CONDUCTORONCIRCUIT
BOARD
COMPONENTCONNECTION
1/4-INCHQUICKCONNECT
TERMINALS
FIELDSPLICE
JUNCTION
CAPACITOR(DUALRUN)
CRANKCASEHEATER
COMPRESSOR
CONTACTOR
CIRCUITBOARD
DEFROSTTHERMOSTAT
DEFROSTRELAYAND
CIRCUITRY
DISCHARGETEMP.SWITCH
HIGHPRESSURESWITCH
LOWPRESSURESWITCH
OUTDOORFANMOTOR
OUTDOORFANRELAY
REVERSINGVALVE
SOLENOID
CAP
*CH
COMP
CONT
CB
DFT
DR
*DTS
*HPS
*LPS
OFM
OFR
RVS
*MAYBEFACTORYORFIELDINSTALLED.
-LEGEND-
327415-101 REV. B
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
1. Compressor damage may occur if system is over
charged.
2. This unit is factory charged with R-22 in accordance
with the amount shown on the rating plate. The
charge is adequate for most systems using
matched coils and tubing not over 15 feet long.
The best performance will be achieved when the
unit operates with a suction gas superheat at the
compressor inlet of 5 ºF at normal rating conditions
of the air conditioning and refrigeration, institute
(ARI). This chart may be used to approximate the
charge if ARI rating conditions cannot be obtained.
ARI rating conditions are equivalent to DOE test "A"
conditions. See product data literature for required
indoor air flow rates and for use of line lengths over
15 Ft.
3. Relieve pressure and recover all refrigerant before
system repair or final unit disposal. Use all service
ports and open all flow-control devices, including
solenoid valves.
1. Compressor and fan motor furnished with
inherent thermal protection.
2. To be wired in accordance with National
Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24V circuit, min. 40 VA required.
4. Use copper conductors only, from disconnect
to unit.
5. Must use thermostat and sub-base as stated
in pre-sale literature.
6. If indoor section has a transformer with a
grounded secondary, connect the grounded
side to "C" on the circuit board.
7. If any of the original wire, as supplied, must
be replaced, use the same or equivalent wire.
8. Check all electrical connections inside control
box for tightness.
9. Do not attempt to operate unit until service
valves have been opened.
10. It is imperative to connect 3Ø field power
to unit with correct phasing. The Phase
Rotation Monitor will not allow the contactor
to be energized if thephasing is not correct.
If phasing is reversed, simply interchange any two
of the three power connections on the field side.
11. Use conductors suitable for at least 75ºC (167ºF).
NOTES:
CAU TIO N
COOLING ONLY
PROCEDURE
EVAPORATOR ENTERING AIR ºF WB.
TEMP °F
OUTDOOR
50
TABLE I - SUPERHEAT CHARGING TABLE
(SUPERHEAT ºF AT LOW-SIDE SERVICE PORT)
52 54 56 58 60 62 64 66 68 70 72 74 76
55 9 37
60 7
65 -- 6
70 -- -- 7
75 -- -- -- 6 9 12 15 18 21 24 28 31 34 37
80 -- -- -- -- 5 8 12 15 18 21 25 28 31 35
85 -- -- -- -- -- -- 8 11 15 19 22 26
90 -- -- -- -- -- -- --------------
-- -- -- -- -- -- --
--
--
--
--
--
----
--
----
--
----
--
------
--
-- --
--
5 9 13 16 20 24 27 31
95 6
100 8 12 15 20 23 27
5 9 13 17 22 26
68
--
--
-- --
-- -- --
105
110
115
918987858381797775
40 898785838179777573
38 878583817977757371
36 858381797775737169
34 838179777573716967
32 817977757371696765
30 797775737169676563
28 777573716967656361
26 757371696765636159
24 737169676563615957
22 71
6967656361595755
20 696765636159575553
18 676563615957555351
16 656361595755535149
14 636159575553514947
12 615957555351494745
10 595755535149474543
8575553514947454341
6555351494745434139
4535149474543413937
25149
47454341393735
0
85.782.479.276.073.070.067.164.2
SUCTION PRESSUR E AT SERVICE PORT PSIG.
TEMP. °F
61.5
SUPERHEAT
45
43
41
39
42
40
35
32
29 4038
35
3330 38
3633 3633 30
27 30
2724
33
18 29
30
22 25
14
10
23
2520
18
14
1511
2723
23
18
1512
10 26
23
20
17
14
12
24
21
19
16
13
10 21
19
16
13
10
TABLEII - REQUIREDSUCTION TUBETEMPERATURE ºF
(MEASUREDATLOW-SIDESERVICEPORT)
L1
GND
EQUIP
CONT
11 21
L2 L3
T3
T1
T2
31
OFR CONT
CH
23 13
OFM
COMP
CAP
C
RVS
OO
W2
RR
YY
C
DFT
DFT
OF1 DR OF2 OFR
DR
*LPS *DTS *HPS
T1 C
CONT
LOGIC
BRN
YEL
OFM
BRN
BLK
31
BRN
YEL
YEL
YEL
BLK
BLK
BLU
L2
ALERT!
(NOTE #11)
23
13
21
11
L3
L1
EQUIP GND
SUPPLY
POWER
460 3Ø
CONT
*CH
RED
or
BLK
OFR
CAP
COMP
T2
T1 T3
BLK
or
RED
ORG
ORG or
or
RVS
BLK
BLK
DFT BLK
or
PNK
PNK
or
BLK
WHT
YEL
CB
DR
OF1
OF2
CY OW2R
Y
T1
LOGIC
90
30
SPEED
UP
R
C
C
DFT
O
PNK PNK
HK32EA001
*LPS *HPS
YEL
YEL BLU
BRN
YEL
ORG
ORG
GLER W2 OYC
TERMINAL BLOCK
INDOOR UNIT
RED
ORNBLK
G W3 LER W2 OYC
INDOOR THERMOSTAT (NOTE #5)
YEL or BLU
BLK
BLK
1. Operate unit a minimum of
10 minutes before checking
charge.
2. Measure suction pressure
by attaching a gage to
suction valve service port.
3. Measure suction temperature
by attaching an accurate
thermistor type or electronic
thermometer to the suction
line at service valve.
4. Measure outdoor air dry-bulb
temperature with a
thermometer.
5. Measure indoor air (entering
indoor coil) wet bulb
temperature with a sling
psychrometer.
6. Refer to table I. Find out-
door temperature and
evaporator entering air wet-
bulb temperature at this
intersection note the super-
heat.
7. Refer to table II. Find super-
heat temperature located in
step 6 and suction pressure,
at this intersection note
suction line temperature.
8. If unit has a higher suction
line temperature than charted
temperature, add refrigerant
until charted temperature
is reached.
9. If unit has a lower suction
line temperature than charted
temperature, remove and
recover refrigerant until
charted temperature is
reached.
10. If outdoor air temperature
or pressure at suction valve
changes, charge to new
suction line temperature
indicated on chart.
11. This procedure is valid when
indoor air flow is within
+/- 21% of its rated cfm.
50
**
**BOARD MAY HAVE 60
AS MIDDLE SELECTION
FIELD SELECTED TIME PERIOD
BETWEEN DEFROST CYCLES (MINUTES)
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
HEAT CYCLE: 90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
50 MIN. ACCELERATED TO 12 SEC.
30 MIN. ACCELERATED TO 7 SEC.
10 MIN. ACCELERATED TO 2 SEC.
DEFROST CYCLE:
90
30
SPEED
UP
50
**
**
8

Fig. 8—Label Wiring 327416-101 A05021
FACTORYPOWERWIRING
FIELDPOWERWIRING
FACTORYCONTROLWIRING
FIELDCONTROLWIRING
CONDUCTORONCIRCUIT
BOARD
COMPONENTCONNECTION
1/4-INCHQUICKCONNECT
TERMINALS
FIELDSPLICE
JUNCTION
CAPACITOR(DUALRUN)
CRANKCASEHEATER
COMPRESSOR
CONTACTOR
CIRCUITBOARD
DEFROSTTHERMOSTAT
DEFROSTRELAYAND
CIRCUITRY
DISCHARGETEMP.SWITCH
HIGHPRESSURESWITCH
LOWPRESSURESWITCH
OUTDOORFANMOTOR
OUTDOORFANRELAY
PHASEROTATIONMONITOR
REVERSINGVALVE
SOLENOID
CAP
*CH
COMP
CONT
CB
DFT
DR
*DTS
*HPS
*LPS
OFM
OFR
PRM
RVS
*MAYBEFACTORYORFIELDINSTALLED.
-LEGEND-
327416-101 REV. B
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
CONT
L1
11 21
EQUIP
GND
OFM
CONT
23 13
L3
T2
T1
T3
COMP
CAP
L2
L3 L1L2
PRM
OFR
31
*CH
C
RVS
OO
W2
RR
YY
C
DFT
DFT
DR
*LPS *DTS *HPS
T1
C
CONT
LOGIC
CONT COM
PRM
24V
OF1 DR OF2 OFR
PRM LED INDICATOR
NOTE
OFF: NO24VAC
ON: OK
FLASH: PHASEPROBLEM
OFM
BLK
31
YEL
L2
23
13
21
11
L3
L1
EQUIP GND
CONT
*CH
OFR
CAP
BLK
*DTS
BLK BLU
BRN
RED
WHT
ORN
YEL
BLK
CB
YEL
*HPS
*LPS
RW2OYC
OF2
OF1
LOGIC
DR
INDOOR UNIT
TERMINAL BLOCK
INDOOR THERMOSTAT
(NOTE #5)
CYO
W2 REL W3 G
CYO W2 REL G
YEL
BLK
BLU
BLK
(NOTE #11)
ALERT!
BLK
YEL
BRN
BRN
SUPPLY
POWER
460 3Ø
BLK or RED
BLK or RED
YELBLK
GRY
L3
L1 L2
CONT 24V COM
PRM
T2
T1
T3
COMP
YEL
BRN
BLU
BLK YEL
BRN
BLU/YEL BLU or YEL
BLK YEL
ORG
ORG or
or
RVS
BLK
BLK
DFT
BLK
or
PNK
PNK
or
BLK
PNK PNK
ORG
ORG
R
R
DFT
90
30
SPEED
UP
Y
T1
C
C
O
HK32EA001
1. Compressor damage may occur if system is over
charged.
2. This unit is factory charged with R-22 in accordance
with the amount shown on the rating plate. The
charge is adequate for most systems using
matched coils and tubing not over 15 feet long.
The best performance will be achieved when the
unit operates with a suction gas superheat at the
compressor inlet of 5 ºF at normal rating conditions
of the air conditioning and refrigeration, institute
(ARI). This chart may be used to approximate the
charge if ARI rating conditions cannot be obtained.
ARI rating conditions are equivalent to DOE test "A"
conditions. See product data literature for required
indoor air flow rates and for use of line lengths over
15 Ft.
3. Relieve pressure and recover all refrigerant before
system repair or final unit disposal. Use all service
ports and open all flow-control devices, including
solenoid valves.
1. Compressor and fan motor furnished with
inherent thermal protection.
2. To be wired in accordance with National
Electric Code (N.E.C.) and local codes.
3. N.E.C. class 2, 24V circuit, min. 40 VA required.
4. Use copper conductors only, from disconnect
to unit.
5. Must use thermostat and sub-base as stated
in pre-sale literature.
6. If indoor section has a transformer with a
grounded secondary, connect the grounded
side to "C" on the circuit board.
7. If any of the original wire, as supplied, must
be replaced, use the same or equivalent wire.
8. Check all electrical connections inside control
box for tightness.
9. Do not attempt to operate unit until service
valves have been opened.
10. It is imperative to connect 3Ø field power
to unit with correct phasing. The Phase
Rotation Monitor will not allow the contactor
to be energized if thephasing is not correct.
If phasing is reversed, simply interchange any two
of the three power connections on the field side.
11. Use conductors suitable for at least 75ºC (167ºF).
NOTES:
CAU TIO N
COOLING ONLY
PROCEDURE
EVAPORATOR ENTERING AIR ºF WB.
TEMP °F
OUTDOOR
50
TABLE I - SUPERHEAT CHARGING TABLE
(SUPERHEAT ºF AT LOW-SIDE SERVICE PORT)
52 54 56 58 60 62 64 66 68 70 72 74 76
55 9 37
60 7
65 -- 6
70 -- -- 7
75 -- -- -- 6 9 12 15 18 21 24 28 31 34 37
80 -- -- -- -- 5 8 12 15 18 21 25 28 31 35
85 -- -- -- -- -- -- 8 11 15 19 22 26
90 -- -- -- -- -- -- --------------
-- -- -- -- -- -- --
--
--
--
--
--
----
--
----
--
----
--
------
--
-- --
--
5 9 13 16 20 24 27 31
95 6
100 8 12 15 20 23 27
5 9 13 17 22 26
68
--
--
-- --
-- -- --
105
110
115
918987858381797775
40 898785838179777573
38 878583817977757371
36 858381797775737169
34 838179777573716967
32 817977757371696765
30 797775737169676563
28 777573716967656361
26 757371696765636159
24 737169676563615957
22 71
6967656361595755
20 696765636159575553
18 676563615957555351
16 656361595755535149
14 636159575553514947
12 615957555351494745
10 595755535149474543
8575553514947454341
6555351494745434139
4535149474543413937
25149
47454341393735
0
85.782.479.276.073.070.067.164.2
SUCTION PRESSUR E AT SERVICE PORT PSIG.
TEMP. °F
61.5
SUPERHEAT
45
43
41
39
42
40
35
32
29 4038
35
3330 38
3633 3633 30
27 30
2724
33
18 29
30
22 25
14
10
23
2520
18
14
1511
2723
23
18
1512
10 26
23
20
17
14
12
24
21
19
16
13
10 21
19
16
13
10
TABLEII - REQUIREDSUCTION TUBETEMPERATURE ºF
(MEASUREDATLOW-SIDESERVICEPORT)
1. Operate unit a minimum of
10 minutes before checking
charge.
2. Measure suction pressure
by attaching a gage to
suction valve service port.
3. Measure suction temperature
by attaching an accurate
thermistor type or electronic
thermometer to the suction
line at service valve.
4. Measure outdoor air dry-bulb
temperature with a
thermometer.
5. Measure indoor air (entering
indoor coil) wet bulb
temperature with a sling
psychrometer.
6. Refer to table I. Find out-
door temperature and
evaporator entering air wet-
bulb temperature at this
intersection note the super-
heat.
7. Refer to table II. Find super-
heat temperature located in
step 6 and suction pressure,
at this intersection note
suction line temperature.
8. If unit has a higher suction
line temperature than charted
temperature, add refrigerant
until charted temperature
is reached.
9. If unit has a lower suction
line temperature than charted
temperature, remove and
recover refrigerant until
charted temperature is
reached.
10. If outdoor air temperature
or pressure at suction valve
changes, charge to new
suction line temperature
indicated on chart.
11. This procedure is valid when
indoor air flow is within
+/- 21% of its rated cfm.
FIELD SELECTED TIME PERIOD
BETWEEN DEFROST CYCLES (MINUTES)
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
HEAT CYCLE: 90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
50 MIN. ACCELERATED TO 12 SEC.
30 MIN. ACCELERATED TO 7 SEC.
10 MIN. ACCELERATED TO 2 SEC.
DEFROST CYCLE:
90
30
SPEED
UP
50
**
**
**
**BOARDMAYHAVE60
ASMIDDLESELECTION
50
9

Fig. 9—Label Wiring 327417-101 A05022
T1
CONT
LOGIC
C
C
Y
Y
DFT
DFT
C
R
R
W2
OO
DR
DR
*LPS *DTS *HPS
RVS
FACTORYPOWER WIRING
FIELDPOWER WIRING
FACTORYCONTROL WIRING
FIELDCONTROL WIRING
CONDUCTORON CIRCUIT BOARD
COMPONENTCONNECTION
1/4- INCH QUICK CONNECT TERMINALS
FIELDSPLICE
JUNCTION
CAPACITOR(DUAL RUN)
CRANKCASEHEATER
CRANKCASEHEATER SWITCH
COMPRESSOR
CONTACTOR
CIRCUITBOARD
DEFROSTTHERMOSTAT
DEFROSTRELAY AND CIRCUITRY
DISCHARGETEMP. SWITCH
HIGHPRESSURE SWITCH
LOWPRESSURE SWITCH
OUTDOORFAN MOTOR
REVERSINGVALVE SOLENOID
STARTCAPACITOR
STARTRELAY
STARTTHERMISTOR
CAP
*CH
*CHS
COMP
CONT
CB
DFT
DR
*DTS
*HPS
*LPS
OFM
RVS
*SC
*SR
*ST *MAYBEFACTORYORFIELDINSTALLED.
-LEGEND-
1. COMPRESSORANDFANMOTORFURNISHEDWITHINHERENT
THERMALPROTECTION.
2. TOBEWIREDINACCORDANCEWITHNATIONALELECTRICCODE
(N.E.C.)ANDLOCALCODES.
3. N.E.C.CLASS2,24VCIRCUIT,MIN.40VAREQUIRED.
4. USECOPPERCONDUCTORSONLYFROMDISCONNECTTOUNIT.
5. MUSTUSETHERMOSTATANDSUB-BASEASSTATEDINPRE-SALE
LITERATURE.
6. IFINDOORSECTIONHASATRANSFORMERWITHAGROUNDED
SECONDARY,CONNECTTHEGROUNDEDSIDETO"C"ONTHE
CIRCUITBOARD.
7. IFANYOFTHEORIGINALWIRE,ASSUPPLIED,MUSTBEREPLACED,
USETHESAMEOREQUIVALENTWIRE.
8. CHECKALLELECTRICALCONNECTIONSINSIDECONTROLBOX
FORTIGHTNESS.
9. DONOTATTEMPTTOOPERATEUNITUNTILSERVICEVALVES
HAVEBEENOPENED.
10.USECONDUCTORSSUITABLEFORATLEAST75ºC(167ºF).
NOTES:
327417-101 REV. B
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
1323
*CH
CONT
DR
OF1 OF2
L2
21
11
CONT
EQUIP
GND
L1 COMP
OFM
CAP
*CHS
H
C
F
*ST
+t°
S
CR
CONT
208/230 1Ø
POWER
SUPPLY
EQUIP GND
L1 11 21
13 23
L2
BLK
YEL YEL
OFM
*CH
CAP
COMP
BLK
BLK
*CHS
BLK
or
RED BLK
RED or BLK BLU
H
C
F
BRN
YEL
YEL
S
C
R*ST
BLU +t°
ORG
ORG oror
RVS
BLK
BLK
DFT
BLK
or
PNK
PNK
or
BLK
GLER W2 OYC
TERMINAL BLOCK
INDOORUNIT
RED
WHT
ORN
YEL
BLK
CB
G W3 LER W2 OYC
INDOOR THERMOSTAT (NOTE #5)
DR
OF1
OF2
CY OW2R
Y
T1
LOGIC
90
30
SPEED
UP
R
C
C
DFT
O
PNK PNK
HK32EA001
*LPS *HPS
YEL
YEL BLU
BRN
YEL
BRN
YEL or BLU
YEL
ORG
ORG
BLK
BLK
**
**BOARDMAYHAVE60
ASMIDDLESELECTION
50
FIELD SELECTED TIME PERIOD
BETWEEN DEFROST CYCLES (MINUTES)
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
HEAT CYCLE: 90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
50 MIN. ACCELERATED TO 12 SEC.
30 MIN. ACCELERATED TO 7 SEC.
10 MIN. ACCELERATED TO 2 SEC.
DEFROST CYCLE:
90
30
SPEED
UP
50
**
**
10

Fig. 10—Label Wiring 327418-101 A05023
.
.
2323
*CH
CONT
DR
OF1 OF2
L2
21
11
CONT
EQUIP
GND
L1
COMP
OFM
CAP
*CHS
H
C
F
*ST
+t°
S
CR
CONT
POWER
SUPPLY
EQUIP GND
L1 11 21
23 23
L2 BLK
YEL YEL
OFM
*CH
COMP
BLK
BLK
230 1Ø
BLK
BLK
*CHS
BLK
or
RED BLK
RED or BLK
BRN
YEL
S
C
R
T1
CONT
ORG
ORG oror
RVS
BLK
BLK
DFT
BLK
or
PNK
PNK
or
BLK
GLER W2 OYC
TERMINAL BLOCK
INDOOR UNIT
RED
WHT
ORN
YEL
BLK
CB
G W3 LER W2 OYC
INDOOR THERMOSTAT (NOTE#5)
DR
OF1
OF2
CY O W2 R
Y
T1
LOGIC
90
30
SPEED
UP
R
C
C
DFT
O
PNK PNK
*LPS *HPS
YEL
YEL BLU
BRN
YEL
BRN
YEL orBLU
LOGIC
C
C
Y
Y
DFT
DFT
C
R
R
W2
OO
DR
DR
*LPS *DTS *HPS
YEL
ORG
ORG
HK32EA001
RVS
CAP
BLU
H
C
F
YEL *ST
BLU +t°
FACTORYPOWER WIRING
FIELDPOWER WIRING
FACTORYCONTROL WIRING
FIELDCONTROL WIRING
CONDUCTORON CIRCUIT BOARD
COMPONENTCONNECTION
1/4- INCH QUICK CONNECT TERMINALS
FIELDSPLICE
JUNCTION
CAPACITOR(DUAL RUN)
CRANKCASEHEATER
CRANKCASEHEATER SWITCH
COMPRESSOR
CONTACTOR
CIRCUITBOARD
DEFROSTTHERMOSTAT
DEFROSTRELAY AND CIRCUITRY
DISCHARGETEMP. SWITCH
HIGHPRESSURE SWITCH
LOWPRESSURE SWITCH
OUTDOORFAN MOTOR
REVERSINGVALVE SOLENOID
STARTCAPACITOR
STARTRELAY
STARTTHERMISTOR
CAP
*CH
*CHS
COMP
CONT
CB
DFT
DR
*DTS
*HPS
*LPS
OFM
RVS
*SC
*SR
*ST *MAYBEFACTORYORFIELDINSTALLED.
-LEGEND-
1. COMPRESSORANDFANMOTORFURNISHEDWITHINHERENT
THERMALPROTECTION.
2. TOBEWIREDINACCORDANCEWITHNATIONALELECTRICCODE
(N.E.C.)ANDLOCALCODES.
3. N.E.C.CLASS2,24VCIRCUIT,MIN.40VAREQUIRED.
4. USECOPPERCONDUCTORSONLYFROMDISCONNECTTOUNIT.
5. MUSTUSETHERMOSTATANDSUB-BASEASSTATEDINPRE-SALE
LITERATURE.
6. IFINDOORSECTIONHASATRANSFORMERWITHAGROUNDED
SECONDARY,CONNECTTHEGROUNDEDSIDETO"C"ONTHE
CIRCUITBOARD.
7. IFANYOFTHEORIGINALWIRE,ASSUPPLIED,MUSTBEREPLACED,
USETHESAMEOREQUIVALENTWIRE.
8. CHECKALLELECTRICALCONNECTIONSINSIDECONTROLBOX
FORTIGHTNESS.
9. DONOTATTEMPTTOOPERATEUNITUNTILSERVICEVALVES
HAVEBEENOPENED.
10.USECONDUCTORSSUITABLEFORATLEAST75ºC(167ºF).
NOTES:
327418-101 REV. B
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
FIELD SELECTED TIME PERIOD
BETWEEN DEFROST CYCLES (MINUTES)
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
HEAT CYCLE: 90 MIN. ACCELERATED TO 21 SEC.
60 MIN. ACCELERATED TO 14 SEC.
50 MIN. ACCELERATED TO 12 SEC.
30 MIN. ACCELERATED TO 7 SEC.
10 MIN. ACCELERATED TO 2 SEC.
DEFROST CYCLE:
90
30
SPEED
UP
50
**
**
**
**BOARDMAYHAVE60
ASMIDDLESELECTION
50
11

Copyright 2005 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 38a1w
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
Tab 3d 2e PC 101 Catalog No. 38A-1W Printed in U.S.A. Form 38A-1W Pg 12 4-05 Replaces: New