Bryant 189BNV EVOLUTION, Service Manual

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34
WIRING DIAGRAMS -- 189BNV
Fig. 43 – 189BNV WIRING DIAGRAM -- Sizes 13 and 24B
60 014 5.1K 270K
1. To Be Wired In Accordance With National Electric Code (N.E.C.) And Local Codes.
2. Use Copper Conductors Only. Use Conductors Suitable For At Least 75ºC (167ºF).
3. Two Wire A and B Required For Communication. If Outdoor Unit Improperly
Grounded, Connect Indoor Ground To “C” Terminal.
4. If Any Of The Original Wire, As Supplied, Must Be Replaced, Use The Same Or
Equivalent Wire.
5. Check All Electrical Connections Inside Control Box For Tightness.
6. Do Not Attempt To Operate Unit Until Service Valves Have Been Opened.
7.
If Communicating, Must Use With Infinity or Evolution User Interface Listed In
Pre-sale Literature Only.
8. For Non-Communicating Thermostats, 24VAC To Be Provided To R Connection.
9. N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on units installed with LLS.
This control board contains a 3.5 minute short cycle protector. A 3.5 minute delay will occur between
Compressor off/on cycles. To bypass delay, short forced defrost pins for 1 second then release.
However, there is an additional 2.5 minutes delay upon expiration of the 3.5 minute short cycle delay to
ensure the high and low side pressures are equalized. This is important for long term rotary compressor
reliability. It is a delay that cannot and must not be bypassed. The internal crankcase heater is energized
during off cycle as needed.
340613-101 REV. C
L1
L2
BLU
MOTOR CONTROL COMM HEADER
CHOKE
RED
YEL
BLK
V
W
CONNECTION DIAGRAM
AIR CONDITIONER
CONTROL SECTION
COMP
NOTES:
CHOKE
BLK RED
YEL
W
U
V
(R)
(S)
(C)
25 011
5.1K
150K
MODEL MODEL
PLUG
HK70EZ
SIZE
MODEL PLUG CHART
1 - 4 (R1) 2 - 3 (R2)
PIN RESISTANCE (K )
36 012 5.1K 180K
48 013 5.1K 220K
UNIT OPERATION
-LEGEND-
FACTORY POWER WIRING
FIELD POWER WIRING
FACTORY CONTROL WIRING
FIELD CONTROL WIRING
COMPONENT CONNECTION
JUNCTION
FIELD SPLICE
PLUG CONNECTION MODEL
OAT
OCT
ODT
OFM
OST
PEV
SPT
STATUS
SW2
TB
UTIL
24V
MODEL PLUG
OUTDOOR AIR THERMISTOR
OUTDOOR COIL THERMISTOR
OUTDOOR DISCHARGE THERMISTOR
OUTDOOR FAN MOTOR
OUTDOOR SUCTION THERMISTOR
PRESSURE EQUALIZER VALVE
SUCTION PRESSURE
TRANSDUCER
SYSTEM FUNCTION LIGHT
DEFROST TIME SELECT
TERMINAL BLOCK
UTILITY CURTAILMENT
24 VOLTS DC
OFM
DC FAN
MOTOR & COMPRESSOR
CONTROL SECTION
YEL
U
RED
V
BLK
W
HPS
HPS
PL19
SPT
BLK
RED
WHT
SPT
+
-
PL17
OST
BLK
OST
BLK
OAT OCT
BLK
BLK
PL15
OAT OCT
BRN
MODEL
PL18
FORCED
DEFROST
J2
21 23
208/230 1Ø POWER SUPPLY
EQUIP GND
GRN
YEL
BLK
FUSE 3 AMP
STATUS COMM
TB
F
L1 L2
HP CONTROL COMM HEADER
BLU/PNK
BLU/PNK
U
1
* MAY BE FACTORY OR FIELD INSTALLED
COMM
COMP
LD1
HPS
LVCH SYSTEM COMMUNICATION
COMPRESSOR
HIGH VOLTAGE INDICATOR LED
HIGH PRESSURE SWITCH
LOW VOLTAGE CHOKE HARNESS
1
1
ODT
PL16
ODT
1
1
BRN
4
2
BLU
UTIL R Y 2
C
O Y 1 W 24V
UTILITY INTERFACE
DC
+
BLK
BLK
SW2
1 2
120
60
30
90
30 60
PL10
RVS
BLU BLU
PEV
1
PEV
DC
-
LD1
YEL
LVCH
GRN
CHOKE
37 025 11K 091K
49 027 11K 150K
Fig. 44 – 189BNV WIRING DIAGRAM -- Sizes 25, 36, 37, 48, 49, 60