Lennox ELS150S4D User Manual

Page 25
C-ELS180, 240
537905-01
ELS-180,240-G,J,M,Y
LINE VOLTAGE FIELD INSTALLED
DENOTES OPTIONAL COMPONENTS
C
R
TB14
TB14
4
4
TB14
TERMINAL STRIP-CLASS II VOLTAGE
K10,-1
K66,-1,2
K67,-1,2
K149,-1
COOL 2
COOL 1
C2
C1
CB8
CIRCUIT BREAKER-TRANS T1
S24
S25
T1
TRANSFORMER-CONTROL
SWITCH-LOSS OF CHARGE,COMP 1
SWITCH-LOSS OF CHARGE,COMP 2
WIRING DIAGRAM
SECTION A 4
4
2
5
3
1
S25
S24
T1
240 / 460 / 575V
208V
CB8
208V
9
6
9
6
3
1
2
3
1
2
3
1
2
CB8
T1
AND
3
1
2
6
2008
08/17
400V
400V
240 / 460 / 575V
SINGLE SPEED COMPRESSOR
II
REV. 0
First Stage Cool
1 - Cooling demand energizes K66 relay coil at
thermostat terminal Y1.
2 - K66-1 contacts close, voltage passes through S24
loss of charge switch and high pressure switch S4
energizing contactor K1.
3 - At the same time, K66-2 closes energizing relay K10.
4 - K1-1 contacts close, energizing compressor B1.
K10-1 contacts close energizing outdoor fans B4
and B5. K1-2 opens to de-energize crankcase
heater HR1.
Second Stage Cool
5 - Cooling demand energizes K67 relay coil at
thermostat terminal Y2.
6 - K67-1 contacts close, voltage passes through S25
loss of charge switch and S7 high pressure switch
energizing K2.
7 - At the same time, K67-2 closes, energizing relay K149.
8 - K2-1 contacts close energizing compressor B2 and
K149-1 contacts close, energizing outdoor fans B21
and B22. K2-2 opens to de-energize crankcase
heater HR2.

Lennox ELS150S4D Specifications

General

Brand	Lennox
Model	ELS150S4D
Category	Fan
Language	English