Indoor Unit Electrical Connections Procedure - LG MULTI F Installation Manual
Multi-zone heat pump systems
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- Engineering manual (224 pages) ,
- Installation manual (65 pages) ,
- Install (9 pages)
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ELECTRICAL WIRING
Indoor Unit Electrical Connections Procedure
Figure 53: Simplified View of Indoor Unit to Outdoor Unit / Branch
Distribution Unit Terminal Connections.
Indoor Unit Terminal Block
GND
1(L1 ) 2(L2)
3
Using a Conduit
1. Remove the rubber stopper on the indoor unit. Pass the power
wiring / communications cable through the conduit, the conduit
mounting plate, and to / through the control panel of the indoor
unit.
2. Tighten the conduit and the conduit mounting plate together.
3. Connect the power wiring / communications cable to the indoor
unit terminal block.
4. Screw the conduit mounting plate to the indoor unit.
Note:
If the distance between the outdoor unit and indoor unit is greater
than 131 feet, connect the power wiring and communications cable
separately (i.e., a conduit cannot be used).
PTVK430 Ventilation Kit
PTVK430 Ventilation Kit includes a flange for field-supplied ventilation pipe connection.
Easily connects at the four-way ceiling-cassette three (3) inch fresh air knockout hole.
42
Branch Distribution Unit Terminal Block or
Outdoor Unit Terminal Block
S
N
L
BDU:
ODU:
3 or S
GND
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Figure 54: Typical Indoor Unit Terminal Block with Grounding Cable
(Actual Appearance May Vary).
Figure 55: Using a Conduit.
Rubber Stopper
Conduit Bracket
Screws
Ceiling cassette 4-way
Figure 56: PTVK430 Ventilation Kit.
F
MULTI
F
MULTI
MAX
Cable
Conduit
_ 19
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