Wiring Connection - Lennox LT-B3021HW Installation Operating & Maintenance Manual

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5. Wiring Connection

• Open the control box cover and connect the Remote control cord and Indoor power wires.
Control box cover
fitting screw (4 units)
1 Phase
• Heat Pump Model
• Cooling Model
3 Phase
• Heat Pump Model
• Cooling Model
The power cord connected to the outdoor unit
should be complied with the following specifications
(Rubber insulation, type H05RN-F approved by HAR
or SAA).
WARNING
Make sure that the screws of the terminal are free from looseness.
Remote control
cord
Indoor Power wires
Control
box cover
Terminal Block of Indoor Unit
3(N) 4(L)
5
6
7
Terminal Block of Indoor Unit
3(N) 4(L)
5
6
7
Terminal Block of Indoor Unit
3(N) 4(L)
5
6
7
Terminal Block of Indoor Unit
3(N) 4(L)
5
6
7
CAUTION
NORMAL CROSS-SECTIONAL AREA
Capacity 1 Phase 3 Phase
24,28,30K
2
2.5mm
-
BTU/h
2
36K BTU/h 5.5mm
2.5mm
Terminal Block of Outdoor Unit
1(N) 2(L)
Power Cord
Terminal Block of Outdoor Unit
1(N) 2(L)
Power Cord
Terminal Block of Outdoor Unit
R
S
T
Power Cord
Terminal Block of Outdoor Unit
R
S
T
Power Cord
The connecting cable connected to the indoor and
outdoor unit should be complied with the following
specifications (Rubber insulation, type H05RN-F
approved by HAR or SAA).
2
–27–
[Air inlet side view]
Wire taking inlet
3(N) 4(L)
5
6
7
3(N) 4(L)
5
6
7
N
3(N)
4(L)
5
6
7
N
3(N)
4(L)
5
6
7
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
8
8
8
8

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