Lennox KGA092 Series User Manual

Page 39
VIII-Wiring Diagrams and Sequence of Operation
JACK, TEST
PLUG, MODULE, CONTROL SMOKE DETECTION
1
2
5
7
8
Lennox Commercial
COOLING
REV. 0.0
LINE VOLTAGE FIELD INSTALLED
DENOTES OPTIONAL COMPONENTS
220-240V
2 3
HR2
B2
HR1
K2-1
L3
T3
L3
T3
L3
T3
120/
60/
1
H
N
GROUND
J11
24V COMMON
COOL 1(Y1)
HEAT 1(W1)
BLOWER(G)
24V POWER
ECONOMIZER
HEAT 2(W2)
COOL 2 (Y2)
S42 USED ON ”M” VOLTAGEUNITS AND UNITS
WITH HIGH EFFICIENCY MOTORS
S48 OR CB10 MAY BE USED
P2 IS USED ON KCA UNITS ONLY
CONNECT A172 SENSOR TO J261 ON SUPPLY AI R
SMOKE DETECTOR ONLY
IMPORTANT: TO PREVENTMOTOR BURNOUT, NEVER
CONNECTMORETHAN ONEMOTORLEADTO ANY ONE
CONNECTION. TAPE UNUSED MOTOR LEADS
JUMPER WHEN S11 AND S84 ARE NOT USED
NOTE - IF ANY WIRE IN THIS APPLIANCEIS REPLACEDIT MUST BE
REPLACEDWITH WIRE OF LIKE SIZE, RATING, TERMINATION AND
INSULATION THICKNESS
WARNING - ELECTRIC SHOCK HAZARD, CAN CAUSE INJURY ORDEATH
UNIT MUST BE GROUNDEDIN ACCORDANCEWITH NATIONAL AND
LOCAL CODES
DISCONNECT ALL POWER BEFORE SERVICING.
K10
A
B
K1
A
B
K2
A
B
K3
A
B
B3
BLACK
WHITE
460V - 575V
UNITS
L1
L2
T18
TO
L1
TO
N
380-420V
UNITS
DESCRIPTION
KEY COMPONENT
A42
MONITOR, PHASE PROTECTION
A144
MODULE, VOLTAGE REDUCTION
A171
SENSOR ONE, SMOKE, RETURN AIR
A172
SENSOR TWO, SMOKE, SUPPLY AIR
A173
MODULE, CONTROL SMOKE DETECTION
B1 COMPRESSOR 1
B2
COMPRESSOR 2
B3
MOTOR, BLOWER
B4
MOTOR, OUTDOOR FAN 1
B5
MOTOR, OUTDOOR FAN 2
B10
MOTOR, EXHAUST FAN 1
C1
CAPACITOR, OUTDOOR FAN 1
C2
CAPACITOR, OUTDOOR FAN 2
C6
CAPACITOR, EXHAUST FAN 1
CB8
CIRCUIT, BREAKER T1
DL46
DELAY, OVERFLOW SWITCH
HR1 HEATER COMPRESSOR 1
HR2
HEATER COMPRESSOR 2
J2
JACK, HEAT
J11
JACK, GFI, RECEPTICLE
J18
JACK, EXHAUST FAN COMPT
J24
JACK, EXHAUST FAN
J35
JACK, TEST
J36
JACK, TEST COOL
J86
JACK, OUTDOOR FANS 1
J132
JACK, BLOWER , EXHAUST FAN MOTOR 1
J250
JACK, SMOKE DETECTOR ONE
J251
JACK, SMOKE DETECTOR ONE
J252
JACK, SMOKE DETECTOR TWO
J253
JACK, SMOKE DETECTOR TWO
J255
JACK, MODULE, CONTROL SMOKE DETECTION
J261
JACK, SMOKE DETECTOR JUMPER
K1,-1 CONTACTOR, COMPRESSOR 1
K2,-1 CONTACTOR, COMPRESSOR 2
K3, -1 CONTACTOR, BLOWER
K10,-1,2 RELAY, OUTDOOR FAN
K65-1,2 RELAY, EXHAUST FAN
K220, -1 RELAY, OVERFLOW DELAY
P2
JACK, HEAT
P18
PLUG, EXHAUST FAN COMPT
P24
PLUG, EXHAUST FAN
P35
P36
PLUG, TEST COOL
P86
PLUG, OUTDOOR FANS 1
P132
PLUG, EXHAUST FAN MOTOR 1
P250
JACK, SMOKE DETECTOR ONE
P251
JACK, SMOKE DETECTOR ONE
P252
JACK, SMOKE DETECTOR TWO
P253
JACK, SMOKE DETECTOR TWO
P255
S3
SWITCH, LIMIT LOW COMPRESSOR 1
S4
SWITCH, LIMIT HI PRESS COMP 1
S5
SWITCH, LIMIT HI TEMP COMPRESSOR 1
S7
SWITCH, LIMIT HI PRESS COMP 2
S8
SWITCH, LIMIT HI TEMP COMPRESSOR 2
S11
SWITCH, LOW PRESS, LOW AMBIENT KIT
S30
SWITCH, LIMIT
LOW COMPRESSOR 2
S42
SWITCH, OVERLOAD RELA
Y BLOWER MOTOR
S48
SWITCH, DISCONNECT
S49
SWITCH, FREEZESTAT COMP 1
S50
SWITCH, FREEZESTAT COMP 2
S84
SWITCH, LOW PRESS, LOW AMBIENT KIT COMP 2
S149
SWITCH, OVERFLOW
T1
TRANSFORMER, CONTROL
K220
A
B
3
2
1
B5
3
2
1
B4
K10-2
9
6
K65-2
9
6
K65-1
7
4
KGA092/150 UNIT DIAGRAM
2
5
6
6
7
3
4

Lennox KGA092 Series Specifications

General

Brand	Lennox
Model	KGA092 Series
Category	Air Conditioner
Language	English