Lennox LHT180 User Manual

Page 42
EHA15/90 Y Voltage
HEATING
REV 0
DENOTES OPTIONAL COMPONENTS
NOT USED ON 15 AND 30KW UNITS
TB3 IS USED IN SOME UNITS
K
W
H
E1
HE2HE3 HE4
H
E5
HE6
H
E
7
HE1
0
HE1
1
15
7.5
7.5
30
15
15
90
15
5151
15
F4
F3 F3 F3
HE1
S20
1
2
HE2
S157
1
2
HE12
HE3 OR HE13
HE14
F42 F42 F42 F43 F43 F43 F44 F44 F44
S
1
5
7
3
4
S
2
0
2
1
K
1
5
−
1
L2
T2
K15−1
T1L1
F
3
F
3
F
4
2
F
4
2
K
1
5
−
1
T3
L3
F3
F42
S157
2
1
HE4
HE4
H
E
4
REMOVE PLUG WHEN FIELD INSTALLING
ELECTRIC HEAT
TB2, CB10 OR S48 MAY BE USED ON NON SCCR UNITS
S
1
5
9
1
2
S
1
5
8
4
3
K
1
6
−
1
L2
T2
K16−1
T1
L1
F
4
3
F
4
3
F
4
4
F
4
4
K
1
6
−
1
T3
L3
F43
F44
S1
5
9
43
HE6
HE6
H
E
6
S
1
7
2
1
2
S
1
7
1
4
3
K
1
8
−
1
L2
T2
K18−1
T1L1
F
4
9
F
4
9
F
5
0
F
5
0
K
1
8
−
1
T3
L3
F49
F50
HE10
HE10
H
E
1
0
S17
2
4
3
K15−1
L1
T1
K15−1
L2
T2
K15−1
L3
T3
K16−1
L1
T1
K16−1
L2
T2
K16−1
L3
T3
K17−1
L1
T1
K17−1
L2
T2
K17−1
L3
T3
K18−1
L1
T1
K18−1
L2
T2
K18−1
L3
T3
S157
3
4
S158
1
2
S158
3
4
S159
1
2
S159
3
4
S160
1
2
S160
3
4
HE1
2
HE1
3HE1
4
45
60
15
1
5
7
.
5
15
1
5
15
7
.
5
15
15
1
5
HE1
ELEMENT, ELECTRIC HEAT 1
HE2
ELEMENT, ELECTRIC HEAT 2
HE3
ELEMENT, ELECTRIC HEAT 3
HE4
ELEMENT, ELECTRIC HEAT 4
HE5
ELEMENT, ELECTRIC HEAT 5
HE6
ELEMENT, ELECTRIC HEAT 6
HE7
ELEMENT, ELECTRIC HEAT 7
HE10
ELEMENT, ELECTRIC HEAT 10
7ELECTRIC HEAT CONTROL
37 ELECTRIC HEAT CONTROL
S15
SWITCH, LIMIT PRIMARY ELECTRIC HEAT
S20
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 1,2
S107
SWITCH, PRIMARY ELECTRIC HEAT
S157
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 2
S158
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 3
S159
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 4
S160
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 5
K9,−1RELAY, HEAT
K15,−1
CONTACTOR, ELECTRIC HEAT 1,2
K16,−1
CONTACTOR, ELECTRIC HEAT 1A,2A
K17,−1
CONTACTOR, ELECTRIC HEAT 3,4
K18,−1
CONTACTOR, ELECTRIC HEAT 5,6
J/P
JACK/PLUG
HE11
ELEMENT, ELECTRIC HEAT 11
HE12
ELEMENT, ELECTRIC HEAT 12
HE13
ELEMENT, ELECTRIC HEAT 13
HE14
ELEMENT, ELECTRIC HEAT 14
S161
S20
3
4
1
2
3
4
2
DESIGNATION VOLTAGE
Y208−230/60/3
C UNITS 156 TO 300
F49
FUSE, ELECTRIC HEAT 7
F50
FUSE, ELECTRIC HEAT 8
K242
CONTACTOR, ELECTRIC HEAT 1
K243
CONTACTOR, ELECTRIC HEAT 2
K245
CONTACTOR, ELECTRIC HEAT 4
K
2
4
2
T1
L1
K
2
4
3
T1
L1
K
2
4
5
T1
L1
K
2
4
3
L2
T2
K
2
4
5
L2
T2
K242
L3
T3
K243
L3T3
K245
L3T3
K
2
4
2
L2
T2
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 6
S
1
6
1
3
4
S
1
6
0
2
1
K
1
7
−
1
L2
T2
K17−1
T1L1
F
4
6
S
1
6
0
K
1
7
−
1
T
3
L3
F45
F46
S16
1
4
3
HE9
HE9
H
E
9
K
2
4
4
T1
L
1
K
2
4
4
L
2
T2
K244
L3T3
F
4
6
F
4
6
HE8
HE9
5
5
F45
FUSE, ELECTRIC HEAT 5
F46
FUSE, ELECTRIC HEAT 6
TB2
TERMINAL STRIP, UNIT
TB3
TERMINAL STRIP, ELECTRIC HEAT
S172
S171
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 7
SWITCH, LIMIT SECONDARY ELECTRIC HEAT 8
HE8
ELEMENT, ELECTRIC HEAT 8
HE9
ELEMENT, ELECTRIC HEAT 9
K244
CONTACTOR, ELECTRIC HEAT 3
KEY
DESCRIPTION
A55
CONTROL, BOARD LENNOX
F3
FUSE, ELECTRIC HEAT
F4
FUSE, UNIT
F42
FUSE, ELECTRIC HEAT 1 A, 2A
F43
FUSE, ELECTRIC HEAT 3
F44
FUSE, ELECTRIC HEAT 4
A178
BOARD, COMP 3 & 4, C3 2nd STAGE HEAT
F61
4
6
6
F61 USED ON SCCR OPTION UNITS
ONLY
TB2 IS USED IN SOME SCCR
OPTION UNITS ONLY
F61
FUSE, UNIT − SCCR
P7
J7
5
P37
J37
6
S107 S15
J7
6
J37
5
P7
P37
3
P7
J7
1
3
P7
J7
2
4
K16
A
B
K15
A
B
K9
A
B
K243
A
B
K242
A
B
A178
AUX CTRL
J396
P396
24VAC
GND
HEAT3 HEAT4
GND GND
5 1
2 6 3
7 4
8
1
K18
A
B
3
4
J37
P37
K17
K9−1
7
4
J37
P37
A
B
1
2
J37
P37
J37
P37
K245
A
B
A55
MAIN CTRL
J393
P393
24VAC
GND
HEAT1 HEAT2 EH LIMIT
GND GND
EH LIMIT
6
1
2
7
3 8
4
9
5
10
EH LIMIT EH LIMIT
1

Lennox LHT180 Specifications

General

Brand	Lennox
Model	LHT180
Category	Heat Pump
Language	English