Typical Multi F/Multi F Max Systems - LG LMCN077HV Installation Manual
Multi f;
multi f max
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Also See for LMCN077HV:
- Service manual (113 pages) ,
- Installation manual (61 pages) ,
- Owner's manual (60 pages)
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F
MULTI
F
MULTI
MAX
Major System Components
A typical Multi F system consists of an outdoor unit (ODU), refrigerant piping, and two (2) to four (4) indoor units (IDUs). The ceiling cassette
units described in this manual are one of the types of IDUs that can be connected to a Multi F system.
A typical Multi F Max system consists of an ODU, refrigerant piping, one or two branch distribution units (BDU), and two (2) to eight (8) IDUs.
The ceiling cassette units described in this manual are one of the types of IDUs that can be connected to a Multi F Max system.
Typical Multi F System
Example: LMU36CHV outdoor unit with four (4)
indoor units connected.
ODU: Outdoor Unit.
IDU: Indoor Unit.
A, B, C, D: Piping from Outdoor Unit to Indoor Unit.
Outdoor
Minimum Length for Each
Unit
Pipe Segment (ft.)
LMU18CHV
9.8
LMU24CHV
9.8
LMU30CHV
9.8
LMU36CHV
9.8
Typical Multi F MAX System with One Branch Distribution Unit
Example: LMU540HV outdoor unit with four
(4) indoor units, and one (1) branch distribu-
tion unit connected.
ODU: Outdoor Unit.
IDU: Indoor Unit.
BDU: Branch Distribution Unit.
A: Main Piping.
B: Branch Piping (Branch Distribution Unit to
Indoor Unit[s]).
Max. 49.2 feet
Table 7: Multi F Outdoor Unit Refrigerant Piping System Limitations.
Maximum Equivalent Pipe Length
to Each Indoor Unit (ft.)
A
B
82
82
82
82
82
82
82
82
ODU
h1 ≤ 98.4 feet
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.
GENERAL DATA
Typical Multi F/Multi F Max Systems
A
B
C
D
C
D
-
-
82
-
82
82
82
82
BDU
B
A
B
B
h3 ≤ 32.8 feet
B
Max. 24.6 feet
Maximum Equivalent Pipe Length
for Each System (ft.)
164
246.1
246.1
246.1
IDU
IDU
h2 ≤ 49.2 feet
IDU
IDU
15
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