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CONNECTION DIAGRAM
L2
CONT
208/230 3Ø
L1
POWER
11 21
SUPPLY
L3
ALERT !
13 23
(NOTE 11)
BLU
EQUIP
GND
BLK
BLK
YEL
L1
L2
PRM
L3
BRN
CONT 24V COM
BLK
GRY
LOGIC
DR
CTD
OF1
BLK
LOGIC
OF2
60
90
120
30
C Y O W2 R
CB
CESO130076-01
YEL
WHT
BLK
ORN
RED
INDOOR UNIT
TERMINAL BLOCK
C
Y
O
R
E
L
G
W2
W3
C
Y
O
R
E
L
G
W2
INDOOR THERMOSTAT
(NOTE #5)
SCHEMATIC DIAGRAM
(LADDER FORM)
L1
COMP
CONT
T1
T2
11
21
EQUIP
T3
GND
DR
OF1
OF2
C
RVS
RVSR
O O
DFT
W2
R
R
AUXR
RVSR
Y
Y
AUXR
T1
*LPS
*HPS
C
BLU
CAP
T1
T2
COMP
BLK
T3
YEL
YEL
*CHS
BRN
BLK
OFM
*CH
BLK
BLK
YEL
BRN
YEL
BLK
*LPS
YEL
YEL
Y
*HPS
BLU
T1
YEL
T2
C
BRN
C
ORG
RVS
ORG
O
ORG
ORG
or
or
BLK
BLK
DFT
PNK
BLK
BLK
R
or
PNK
or
PNK
PNK
DFT
NOTE
PRM L ED INDICATOR
OFF:
NO 24VAC
ON:
OK
FLASH: PHASE PROBLEM
L2
L3
PRM
L2
L3
L1
OFM
CAP
CONT
23
13
*CH
*CHS
DFT
LOGIC
PRM
CONT
24V
COM
CTD
T2
CONT
C
LOGIC
Fig. 2—Label Wiring 327208-101
3
- LEGEND -
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
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
PHASE ROTATION MONITOR
PRM
RVS
REVERSING VALVE SOLENOID
RVSR
REVERSING VALVE SOLENOID RELAY
*SC
START CAPACITOR
*SR
START RELAY
*ST
START THERMISTOR
* MAY BE FACTORY OR FIELD INSTALLED
NOTE
THIS DEFROST CONTROL BOARD CONTAINS A FIVE MINUTE SHORT CYCLE PROTECTOR.
A FIVE MINUTE DELAY WILL OCCUR BETWEEN COMPRESSOR OFF/ON CYCLES.
- NOTES -
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).
DIP SWITCH SETTINGS
(DEFAULT)
120 MINUTES
30 MINUTES
60 MINUTES
90 MINUTES
30
1 2 3
60
1 2 3
1 2 3
OR
OR
OR
90
FIELD SELECTABLE OPTIONS FOR TIME PERIOD BETWEEN DEFROST
CYCLES (MINUTES)
SPEED
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
UP
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.
CAUTION
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.
ON
120
1
2
3
1 2 3
QUIET
SHI F T
OFF
(DEFAULT)
327208-101 REV. A
A05015
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