LG Multi V Manual&Nbsp;

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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Function
3.1 Pressure protection control
3.1.1 Pressure control on cooling mode
■ High pressure control
■ Low pressure control
❈ Frequency holding : frequency (or RPM) is not increasing ( can decrease )
3. Protection control
Pressure range, kPa(psi) Compressor Fan Hot gas
Hot gas
Stop Stop
-
-
-
-5Hz/4sec. +100RPM/4sec.
Frequency holding Normal control
Normal control
-
Pressure range, kPa(psi) Compressor Fan
Stop Stop
ON
-5Hz/4sec -100RPM/4sec.
Normal control Frequency holding
Normal control
OFF
.
Ph ≥ 4003 (580.6)
P
h > 3448 (500.1)
P
h ≥ 3219 (466.9)
P
h < 3219 (466.9)
P
l ≤ 190 (27.6) after 1min.
Pl ≤ 190 (27.6) before 1min.
Pl ≤ 229 (33.2)
Pl ≥ 399 (49.2)
P
h : high pressure
P
l : low pressure

LG Multi V Specifications

General

Type	VRF (Variable Refrigerant Flow)
Compressor Type	Scroll
Refrigerant	R410A
Energy Efficiency	High
Control System	Centralized and individual control options
Indoor Units	Multiple types available (e.g., ceiling cassette, wall-mounted, ducted)