9
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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MAX
MULTI
F
MULTI
F
INTRODUCTION
Multi F and Multi F MAX Ceiling
Cassette Units
This manual describes how to install the LG Multi F and Multi F MAX (Multi Zone) Ceiling
Cassette Indoor Units (IDU) for Multi F heat pump systems. The table on the next page
lists the available models. Refer to LG’s Multi F Indoor Unit Engineering Manual for
complete detailed engineering data and selection procedures.
Safety
Safety of personnel is the primary concern during all procedures. Read and understand
the safety summary at the front of this manual. Read and understand this installation
procedure before beginning installation. Use the appropriate tools and accessories
during installation. Plan your work and
do not work alone, if possible. Know how to
obtain emergency medical and fire fighting assistance.
Installation Personnel
This equipment is intended for installation by personnel trained in the required construction, mechanical, electrical, and/or other disciplines.
WARNING
Installation work must be performed by trained personnel and in accordance with national wiring standards and all local or other applicable codes.
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Please read all instructions before installing this product. Become familiar with the unit’s components and connections, and the order of installation.
Incorrect installation can degrade or prevent proper operation.
• Connecting cable (power and control)
• Pipes - vapor line and liquid line, with
insulation
• 3/8” or 1/2” Threaded hanger rods
• 3/8” or 1/2” nuts, flat washers, and lock /
split washers
• Additional drain hose
• Insulation for additional drain hose
Required Parts (field provided)
Figure 1: Multi F LCN188HV4 Ceiling Cassette
Indoor Unit.
Typical Unit
Model Number
Nominal Capacity
Cooling (Btu)
Heating (Btu)
LMCN078HV
7,000
8,100
LCN098HV4
9,000
10,400
LCN128HV4
12,000
13,800
LCN188HV4
18,000
20,800
Table 1: Multi F Ceiling Cassette Indoor Units.