24ABB3
Baset Series Air Conditioner with Puronr
1---1/2 to 5 Nominal Tons
Single and Three Phase
Wiring Diagrams
CONNECTION DIAGRAM
*CHS
*CH
BLK
or
RED
BLK
BLK
COMP
BLU
CONT
BLK C S
H
21
11
R
C
23 YEL
23
RED or BLK
L1
L2
BLK
208/230 1Ø
POWER
SUPPLY
EQUIP
GND
YEL
OFM
SCHEMATIC DIAGRAM (LADDER FORM)
L1
BLK
(NOTE #9)
BLU
BLU
CAP
+t
YEL
*ST
BRN
YEL
*SC
F
(NOTE #8)
BRN
C
2
EQUIP
GND *CHS
S
2
5
1
H
*SR
5
*SR
C
F
(NOTE #14)
VIO
CONT
*CTD
YEL/PNK
YEL/PNK
BLK
*HPS
BLK
BLU/PNK
*LLS
BLK
*LPS
T2
*DTS
BLK
LOGIC
BLU/PNK
T1
C
R
Y
R
G
INDOOR THERMOSTAT (NOTE #6)
EXTERNAL
POWER
SUPPLY
24 V
(NOTE #3)
Y
IFR
G
R
R
INDOOR
THERMOSTAT
251
259
266
274
283
291
299
308
317
326
335
345
354
364
374
384
395
406
416
427
439
450
462
474
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
10 12 14 16
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
1. Only use sub cooling charging method
when OD ambient is greater than 70ºF
and less than 100ºF, indoor temp is
greater than 70ºF and less than 80ºF, and
line set is less than 80 ft.
2. Operate unit a minimum of 15 minutes before
checking the charge.
3. Measure liquid service valve pressure by
attaching an accurate gauge to the
service port.
4. Measure the liquid line temperature by
attaching an accurate thermistor type or
electronic thermometer to the liquid line
near the outdoor coil.
5. Refer to unit rating plate for required
subcooling temperature.
6. Find the point where the required subcooling
temperature intersects the measured liquid
service valve pressure.
7. To obtain the required subcooling temperature
at specific liquid line pressure, add refrigerant
if liquid line temperature is higher than indicated.
When adding refrigerant, charge in liquid form
using a flow restricting device into suction
service port. Recover refrigerant if temperature
is lower. Allow a tolerance of +/- 3ºF.
NOTES:
1.
2.
3.
4.
5.
6.
7.
C
EXTERNAL POWER SUPPLY 24 V
INDOOR BLOWER MOTOR
Temperature (ºF)
8
T3
* CTD
*LLS
LEGEND
For use with units using R-410A refrigerant
COOLING ONLY
REQUIRED LIQUID LINE TEMPERATURE
CHARGING PROCEDURE
Liquid Pressure
Required Subcooling
6
T2
T1
T3
CONDENSING UNIT CHARGING INSTRUCTIONS
at Service
Valve (psig)
*HPS
LOGIC
BRN/YEL
YEL/ BLU
CAP
BRN/YEL
BLK
*DTS
CONT
23
23
OFM
YEL
*LPS
*ST
+t
*SC
1
*CH
(NOTE #14)
YEL/ BLU
L2
COMP
R
CONT
11
21
Symbols are electrical representation only.
Compressor and fan motor furnished with inherent thermal protection.
To be wired in accordance with National Electric N.E.C. and local codes.
N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on units installed with LLS.
Use copper conductors only. Use conductors suitable for at least 75ºC (167ºF).
Connection for typical cooling only thermostat. For other arrangements see installation instructions.
If indoor section has a transformer with a grounded secondary, connect the grounded
side to the BRN/YEL lead.
8. When start relay and start capacitor are installed, start thermistor is not used.
9. CH not used on all units.
10. If any of the original wire, as supplied must be replaced, use the same or equivalent wire.
11. Check all electrical connections inside control box for tightness.
12. Do not attempt to operate unit until service valves have been opened.
13. Do not rapid cycle compressor. Compressor must be off 3 minutes to allow pressures to equalize
between high and low side before starting.
14. Wire not present if HPS, LPS or CTD are used.
CONT
CAP
*CH
*CHS
COMP
*CTD
*DTS
*HPS
IFR
*LLS
*LPS
OFM
*SC
*SR
*ST
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
CONTACTOR
CAPACITOR (DUAL RUN)
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
COMPRESSOR
COMPRESSOR TIME DELAY
DISCHARGE TEMP SWITCH
HIGH PRESSURE SWITCH
INDOOR FAN RELAY
LIQ LINE SOLENOID VALVE
LOW PRESSURE SWITCH
OUTDOOR FAN MOTOR
START CAPICATOR
START RELAY
START THERMISTOR
* MAY BE FACTORY INSTALLED
CAUTION
1. Compressor damage may occur if system is over charged.
2. This unit is factory charged with R-410A 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. Check refrigerant charge for maximum
efficiency. See Product Data Literature for required Indoor
air Flow Rates and for use of line lengths over 15 feet.
3. Relieve pressure and recover all refrigerant before system
repair or final disposal. Use all service ports and open all
flow-control devices, including solenoid valves.
4. Never vent refrigerant to atmosphere. Use approved
recovery equipment.
330440-101 REV. F
Fig. 1 – Wiring Diagram — Model sizes 1--1/2 -- 5 tons, 208/230--1
CONNECTION DIAGRAM
* CH
L1
BLK
RED or BLK
L2
CONT
L1
L3
11
21
13
23
T2
T3
YEL
CAP
CONT
11
21
EQUIP
GND
YEL
T2
T1
T3
EQUIP GND
BLK
YEL
OFM
*CHS
PRM
PRM
CONT 24V COM
BLU
L2
COM
BRN/YEL
BRN/YEL
BLK
*HPS
*LPS
VIO
YEL/BLU
T2
CONT
LOGIC
T1
*LPS
* CTD
*HPS
YEL/PNK
YEL/PNK
CONT
13
23
OFM
*CH
YEL
COMP
CAP
BRN
BLK
BLU
L3
L1
CONT 24
BLU
COMP
T1
BLK
L3
PRM L2
L3 L1
RED or BLK
L2
208/23 0 3Ø
OR
460 3Ø
POWER
SUPPLY
SCHEMATIC DIAGRAM (LADDER FORM)
*CHS
BLU/PNK
LOGIC
T1
* CTD
*LLS
T2
BLU/PNK
T3
Y
T3
IFR
G
BRN/YEL
R
*LLS
BLK
BLK
IFR
Y
G
R
INDOOR THERMOSTAT (NOTE #6)
C
R
EXTERNAL
POWER
SUPPLY
24 V
(NOTE #3)
R
INDOOR
THERMOSTAT
NOTE
Required Subcooling
Temperature (ºF)
6
8
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
NOTES:
1. Symbols are electrical
representation only.
2. Compressor and fan motor
OFF: NO 24VAC
furnished with inherent
ON: OK
INDOOR BLOWER MOTOR
thermal protection.
FLASH: PHASE PROBLEM
3. To be wired in accordance
with National Electric
N.E.C. and local codes.
4. N.E.C. class 2, 24 V circuit,
min. 40 VA required,
60 VA on units installed
with LLS.
CONT CONTACTOR
5. Use copper conductors
CAP CAPACITOR (DUAL RUN)
only. Use conductors
1. Only use sub cooling charging method
suitable for at least
*CH CRANKCASE HEATER
when OD ambient is greater than 70ºF
75ºC (167ºF).
and less than 100ºF, indoor temp is
*CHS CRANKCASE HEATER SWITCH 6. Connection for typical
cooling only thermostat.
greater than 70ºF and less than 80ºF,
72 70 68
COMPRESSOR
COMP
For other arrangements
74 72 70
and line set is less than 80 ft.
see installation instructions.
*CTD COMPRESSOR TIME DELAY
76 74 72 2. Operate unit a minimum of 15 minutes
7. If indoor section has a
transformer with a
*HPS HIGH PRESSURE SWITCH
78 76 74
before checking the charge.
grounded secondary,
80 78 76
IFR INDOOR FAN RELAY
connect the grounded
82 80 78 3. Measure liquid service valve pressure by
side to the BRN/YEL lead.
LIQ
LINE
SOLENOID
VALVE
*LLS
attaching an accurate gauge to the
84 82 80
8. If any of the original wire,
86 84 82
as supplied must be
*LPS LOW PRESSURE SWITCH
service port.
replaced, use the same or
88 86 84 4. Measure the liquid line temperature by
OFM OUTDOOR FAN MOTOR
equivalent wire.
90 88 86
attaching an accurate thermistor type or
PRM PHASE ROTATION MONITOR 9. Check all electrical
92 90 88
connections inside control
electronic
thermometer
to
the
liquid
line
* MAY BE FACTORY INSTALLED
box for tightness.
94 92 90
10. Do not attempt to operate
near
the
outdoor
coil.
96 94 92
unit service valves have
98 96 94 5. Refer to unit rating plate for required
been opened.
1. Compressor damage may occur if system is 11. Do not rapid cycle
100 98 96
subcooling temperature.
over charged.
compressor.
102 100 98 6. Find the point where the required subCompressor must be off
2. This unit is factory charged with R-410A in
104 102 100
3 minutes to allow
cooling temperature intersects the
accordance
with
the
amount
shown
on
the
106 104 102
pressures to equalize
measured
liquid
service
valve
pressure.
rating
plate.
The
charge
is
adequate
for
most
108 106 104
between high and low
systems using matched coils and tubing not
side before starting.
110 108 106 7. To obtain the required subcooling
over 15 feet long. Check refrigerant charge 12. It is imperative to connect
temperature at specific liquid line
112 110 108
3Ø field power to unit with
for maximum efficiency. See Product Data
114 112 110
pressure, add refrigerant if liquid line
correct phasing. The
Literature for required Indoor air Flow Rates
116 114 112
Phase Rotation Monitor
temperature is higher than indicated.
and for use of line lengths over 15 feet.
118 116 114
will not allow the contactor
3.
Relieve
pressure
and
recover
all
refrigerant
When adding refrigerant, charge in liquid
to be energized if the
before system repair or final disposal. Use all
phasing is not correct. If
form using a flow restricting device into
phasing is reversed,
service ports and open all flow-control
suction service port. Recover refrigerant
simply inter change any
devices, including solenoid valves.
two of the three power
if temperature is lower. Allow a tolerance 4. Never vent refrigerant to atmosphere. Use
connections on field side.
REQUIRED LIQUID LINE TEMPERATURE
251
259
266
274
283
291
299
308
317
326
335
345
354
364
374
384
395
406
416
427
439
450
462
474
EXTERNAL POWER SUPPLY 24 V
LEGEND
PRM LED INDICATOR
CONDENSING UNIT CHARGING INSTRUCTIONS
For use with units using R-410A refrigerant
Liquid Pressure
at Service
Valve (psig)
C
COOLING ONLY
CHARGING PROCEDURE
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
10 12 14 16
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
335874-101 REV.A
CAUTION
of +/- 3ºF.
approved recovery equipment.
Fig. 2 – Wiring Diagram — Model size 2--1/2 -- 5 tons, 208/230--3 and Model size 3 -- 5 tons, 460/3
2
SCHEMATIC DIAGRAM (LADDER FORM)
CONNECTION DIAGRAM
BLU
575 3Ø
POWER
SUPPLY
L1
CONT
L2
L1
L3
12
22
11
21
13
23
BLK
COMP
CONT
11
21
T3
CAP
YEL
YEL
T2
T1
EQUIP
GND
BRN
RED or BLK
CAP
OFM
CONT
13
23
BLK
*CH
*CH
YEL
RED or BLK
BRN/YEL
CONT
BLK
*HPS
*LPS
T2
VIO
LOGIC
T1
*LPS
*HPS
YEL/PNK
YEL/PNK
* CTD
T2
Y
LOGIC
BLU/PNK
BLU/PNK
T1
IFR
T3
G
R
BRN/YEL
BLK
C
R
IFR
Y
G
R
INDOOR
THERMOSTAT
EXTERNAL
POWER
SUPPLY
24 V
(NOTE #3)
CONDENSING UNIT CHARGING INSTRUCTIONS
For use with units using R-410A refrigerant
Liquid Pressure
at Service
Valve (psig)
251
259
266
274
283
291
299
308
317
326
335
345
354
364
374
384
395
406
416
427
439
450
462
474
Required Subcooling
Temperature (ºF)
6
8
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
124
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
122
10 12 14 16
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
120
335875-101 REV. A
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
118
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
116
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100
102
104
106
108
110
112
114
EXTERNAL POWER SUPPLY 24 V
COOLING ONLY
CHARGING PROCEDURE
1. Only use sub cooling charging method
when OD ambient is greater than 70ºF
and less than 100ºF, indoor temp is
greater than 70ºF and less than 80ºF,
and line set is less than 80 ft.
2. Operate unit a minimum of 15 minutes
before checking the charge.
3. Measure liquid service valve pressure by
attaching an accurate gauge to the
service port.
4. Measure the liquid line temperature by
attaching an accurate thermistor type or
electronic thermometer to the liquid line
near the outdoor coil.
5. Refer to unit rating plate for required
subcooling temperature.
6. Find the point where the required subcooling temperature intersects the
measured liquid service valve pressure.
7. To obtain the required subcooling
temperature at specific liquid line
pressure, add refrigerant if liquid line
temperature is higher than indicated.
When adding refrigerant, charge in liquid
form using a flow restricting device into
suction service port. Recover refrigerant
if temperature is lower. Allow a tolerance
of +/- 3ºF.
CAUTION
approved recovery equipment.
Fig. 3 – Wiring Diagram — Model size 3 -- 5 tons, 575/3
3
NOTES:
1. Symbols are electrical
representation only.
2. Compressor and fan motor
furnished with inherent
thermal protection.
3. To be wired in accordance
with National Electric
N.E.C. and local codes.
4. N.E.C. class 2, 24 V circuit,
min. 40 VA required,
60 VA on units installed
with LLS.
CONT CONTACTOR
5. Use copper conductors
only. Use conductors
CAP CAPACITOR
suitable for at least
*CH CRANKCASE HEATER
75ºC (167ºF).
*CHS CRANKCASE HEATER SWITCH 6. Connection for typical
cooling only thermostat.
COMP COMPRESSOR
For other arrangements
see installation instructions.
*CTD COMPRESSOR TIME DELAY
7. If indoor section has a
*HPS HIGH PRESSURE SWITCH
transformer with a
grounded secondary,
IFR INDOOR FAN RELAY
connect the grounded
*LLS LIQ LINE SOLENOID VALVE
side to the BRN/YEL lead.
LOW
PRESSURE
SWITCH
8. If any of the original wire,
*LPS
as supplied must be
OUTDOOR
FAN
MOTOR
OFM
replaced, use the same or
equivalent wire.
9. Check all electrical
connections inside control
box for tightness.
* MAY BE FACTORY INSTALLED
10. Do not attempt to operate
unit service valves have
been opened.
1. Compressor damage may occur if system is 11. Do not rapid cycle
compressor.
over charged.
Compressor must be off
2. This unit is factory charged with R-410A in
3 minutes to allow
accordance with the amount shown on the
pressures to equalize
rating plate. The charge is adequate for most
between high and low
systems using matched coils and tubing not
side before starting.
over 15 feet long. Check refrigerant charge 12. It is imperative to connect
3Ø field power to unit with
for maximum efficiency. See Product Data
correct phasing. The
Literature for required Indoor air Flow Rates
Phase Rotation Monitor
and for use of line lengths over 15 feet.
will not allow the contactor
3. Relieve pressure and recover all refrigerant
to be energized if the
before system repair or final disposal. Use all
phasing is not correct. If
phasing is reversed,
service ports and open all flow-control
simply inter change any
devices, including solenoid valves.
two of the three power
4. Never vent refrigerant to atmosphere. Use
connections on field side.
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
INDOOR BLOWER MOTOR
REQUIRED LIQUID LINE TEMPERATURE
C
LEGEND
R
INDOOR THERMOSTAT (NOTE #6)
T3
* CTD
*LLS
*LLS
BLK
L3
CONT
12
22
T3
OFM
EQUIP GND
L2
T2 COMP
T1
Copyright 2009 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231
Printed in U.S.A.
Edition Date: 09/09
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
4
Catalog No: 24ABB3---1W
Replaces: New
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