285B
EVOLUTION
R
15 HEAT PUMP
WITH PURON
r
REFRIGERANT
1--1/2 TO 5 TONS
Wiring Diagram
SPEED
UP
JUMPERED TEST PINS (USE METAL OBJECT), FIELD SPEED-UP CYCLE
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.
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 M INUTES
120 MINUTES
120
30
OR
OR
OR
60
90
DIP SWITCH SETTINGS
1
2
3
QUIET
SHFT
ON
OFF
(DEFAULT)
FLASH
CODE
FAULT DEFINITION
On, No Flash
Standby
1, Pause
Normal Operation
16
System Communications Failure
31
High Pressure Switch
45
Control Fault
46
Brown out (24V)
53
Outside Temp Sensor
FLASH
CODE
FAULT DEFINITION
72
Thermal Cutout
73
Contactor Shorted
74
No 230V at Compressor
82
Thermal lockout
83
Low pressure lockout
84
High pressure lockout
32
Low Pressure Switch
55
Coil Temp Sensor
56
Thermistor Range Error
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, 60VA on units installed with LLS.
4. Use copper conductors only from disconnect to units suitable for at least 75ºC (167ºF).
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. Symbols are electrical representation only.
11. When start relay and start capacitor are installed, start thermistor is not used.
12. For communicating control only.
13. In case of non-communicating Indoor system, disconnect factory provided wires
from A, B, C, and D terminals. Using factory provided wires connect to R, C, Y, W2,
and O terminals as required by Installation Instructions. Connect field 24V wires to
factory provided wires, cap or remove unused factory provided wires.
THIS DEFROST CONTROL
BOARD CONTAINS A FIVE
MINUTE SHORT CYCLE
PROTECTOR. A FIVE
MINUTE DELAY WILL
OCCUR BETWEEN
COMPRESSOR OFF/ON
CYCLES.
NOTE
+t°
* ST
* CHS
* CH
23
R
C
S
5
2
1
L1
ODF
ODFR
L2
23
CONT
ODF
CAP
F
C
COMP
H
*SC
* SR
GND
EQUIP
21
11
L1
CONT
C
* HPS
C
RVS
R
W2
O
RVSR
AUXR
LLSR
CONT
OAT
OCT
LPS
INPUT
OUTPUT
L
O
G
I
C
ODFR
RVSR
AUXR
LLSR
K4
LS
Y
L1
VS
VR
A BCD
CB
K4
SEE NOTE #12
YEL / BLU
COMP
ODF
S
C
R
RED or BLK
CONT
208/230 1Ø
POWER
SUPPLY
EQUIP GND
L1
L2
BLU
CAP
H
C
F
*ST
+t
BLU
YEL
YEL
*SC
*CHS
*SR
(NOTE #8)
1
2
5
*C
H
BLK
BLK
or
RED
BLK
BRN
BLK
BRN / YEL
CC
1
3
LPS
1
HPS
1 2
2
VS
VR
L1
ODF
* LPS
1
2
3
4
5
OCT
OAT
* HPS
OCT
OAT
DEFROST
TIME
FORCED
DEFROST
COMM
STATUS
UTIL
3
2
C
RVS
TO INDOOR UNIT
PL5
YEL/PNK
BRN
BRN
BLK
BLK
YEL/PNK
BLU/PNK
BLU/PNK
PL4
PL3
PL2
QUIET
SHIFT
4
HP
PL1
ORG
ORG
RVS
BLU
P1
CB
BRN
YEL
BLK
YEL
BLU
11
21
23
23
C
C
R C Y
LS W2 O
OPTIONAL
NON-COMMUNICATING
CONTROL
SEE NOTE #13
AS PROVIDED
BY MANUFACTURER
SEE NOTE #12
R C
Y LS W2 O
A B C D
RED
GRN
YEL
WHT
YEL
VIO
BLK
YEL
AUXR
CAP
CB
*CH
*CHS
COMP
AUXILLARY HEAT RELAY
CAPACITOR (DUAL RUN)
CIRCUIT BOARD
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
COMPRESSOR
NOTES:
SCHEMATIC DIAGRAM (LADDER FORM)
* MAY BE FACTORY OR FIELD INSTALLED
LEGEND
FACTORY POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
CONDUCTOR ON CIRCUIT BOARD
COMPONENT CONNECTION
FIELD SPLICE
JUNCTION
PLUG RECEPTACLE
CONNECTION DIAGRAM
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.
CAUTION
CONT
DFT
DR
*HPS
*LPS
LLSR
OAT
OCT
ODFR
ODF
RVS
RVSR
*SC
*SR
*ST
CONTACTOR
DEFROST THERMOSTAT
DEFROST RELAY AND CIRCUITRY
HIGH PRESSURE SWITCH
LOW PRESSURE SWITCH
LIQUID LINE SOLENOID RELAY
OUTDOOR AIR THERMISTOR
OUTDOOR COIL THERMISTOR
OUTDOOR FAN RELAY
OUTDOOR FAN
REVERSING VALVE SOLENOID
REVERSING VALVE SOLENOID
RELAY START CAPACITOR
START RELAY
START THERMISTOR
339109-101 REV. A
Fig. 1 – Wiring Diagram — Model size 1.5 -- 5 tons, 208/230--1
