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.
CAUTION
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)
1
2
3
1
2
3
1
2
3
1
2
3
30 MINUTES
60 MINUTES
(DEFAULT)
90 MINUTES
120 MINUTES
120
30
OR
OR
OR
60
90
DIP SWITCH SETTINGS
1
2
3
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
C Y O W2 R
LOGIC
Y
T1
LOGIC
T2
60
90
120
30
SP
EED
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
G
L
E
R
W2
O
Y
C
RED
WHT
ORN
YEL
BLK
CB
G
W3
L
E
R
W2
O
Y
C
LOGIC
LOGIC
C
CONT
T2
CTD
T1
C
Y
Y
DFT
DFT
C
RVS
R
R
W2
O
O
RVSR
AUXR
RVSR
AUXR
CONT
L1
11
21
EQUIP
GND
OFM
CONT
23
L3
DR
OF2
OF1
13
*CH
CAP
COMP
T2
T1
T3
L2
*CHS
*HPS
*LPS
5
