Inverter Compressor Protection Control; Discharge Temperature/Inverter Protection - LG Multi V5 Service Manual

Discharge Temperature Control
Table 16: Outdoor Unit Discharge Temperature Control.
Temperature Range
Tdis > 235.4°F
Tdis > 230°F
Tdis > 212°F
* Frequency Hold = Frequency (or RPM) is not
increasing (can decrease).

Inverter Compressor Protection Control

The tables below display the amperage where the system will operate normally, the amperage where the inverter protection control will cause
the frequency to drop, and the amperage where the inverter protection control will shut the system off. AC input current is measured at the
inverter compressor (after the point where the current passes through the noise filter).
Table 17: Inverter Protection Control for 208-230V Outdoor Units (ARUM***BTE5).
Current
Chassis
Type
ARUM072BTE5
ARUM096BTE5
ARUM121BTE5
AC Input ARUM144BTE5
Current ARUM168BTE5
1
ARUM192BTE5
ARUM216BTE5
ARUM241BTE5
ARUM072BTE5
ARUM096BTE5
ARUM121BTE5
Compressor
ARUM144BTE5
ARUM168BTE5
Current
ARUM192BTE5
ARUM216BTE5
ARUM241BTE5
Table 18: Inverter Protection Control for 460V Outdoor Units (ARUM***DTE5).
Current Type Chassis
ARUM072DTE5
ARUM096DTE5
ARUM121DTE5
AC Input ARUM144DTE5
Current ARUM168DTE5
1
ARUM192DTE5
ARUM216DTE5
ARUM241DTE5
ARUM072DTE5
ARUM096DTE5
ARUM121DTE5
Compressor
ARUM144DTE5
ARUM168DTE5
Current
ARUM192DTE5
ARUM216DTE5
ARUM241DTE5
1
Discharge Temperature Control / Inverter Protection Control
Compressor
-5 Hz / 10 seconds
-5 Hz / 10 seconds
Frequency Hold*
Normal Control
Tdis = Temperature Discharge.
SC = Subcooling.
Compressor Normal System
Tons
(HP) Operation
Comp. 1
6 4.8 33A or less
8 6.8 37A or less
10 6.8 37A or less
12 4.8 / 4.8 33A or less 33A or less 33A or more 33A or more 35A or more
14 4.8 / 4.8 33A or less 33A or less 33A or more 33A or more 35A or more
16 6.8 / 6.8 37A or less 37A or less 37A or more 37A or more 40A or more
18 6.8 / 6.8 37A or less 37A or less 37A or more 37A or more 40A or more
20 6.8 / 6.8 37A or less 37A or less 37A or more 37A or more 40A or more
6 4.8 36A or less
8 6.8 49A or less
10 6.8 49A or less
12 4.8 / 4.8 36A or less 36A or less 36A or more 36A or more 46A or more
14 4.8 / 4.8 36A or less 36A or less 36A or more 36A or more 46A or more
16 6.8 / 6.8 49A or less 49A or less 49A or more 49A or more 60A or more
18 6.8 / 6.8 49A or less 49A or less 49A or more 49A or more 60A or more
20 6.8 / 6.8 49A or less 49A or less 49A or more 49A or more 60A or more
Compressor Normal System
Tons
(HP)
Comp. 1
6 4.8 18A or less
8 6.8 25A or less
10 6.8 25A or less
12 4.8 / 4.8 18A or less 17A or less 18A or more 17A or more 20A or more
14 4.8 / 4.8 18A or less 17A or less 18A or more 17A or more 20A or more
16 6.8 / 6.8 25A or less 25A or less 25A or more 25A or more 27A or more
18 6.8 / 6.8 25A or less 25A or less 25A or more 25A or more 27A or more
20 6.8 / 6.8 25A or less 25A or less 25A or more 25A or more 27A or more
6 4.8 20A or less
8 6.8 29A or less
10 6.8 29A or less
12 4.8 / 4.8 20A or less 20A or less 20A or more 20A or more 30A or more
14 4.8 / 4.8 20A or less 20A or less 20A or more 20A or more 30A or more
16 6.8 / 6.8 29A or less 29A or less 29A or more 29A or more 41A or more
18 6.8 / 6.8 29A or less 29A or less 29A or more 29A or more 41A or more
20 6.8 / 6.8 29A or less 29A or less 29A or more 29A or more 41A or more
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.
PROTECTION CONTROL
Subcooling EEV
SC, SH Decrease Control
SC, SH Decrease Control
SC, SH Decrease Control
SC, SH Decrease Control
SC, SH Decrease Control
Cooling & Heating
Frequency Will Drop
Comp. 2 Comp. 1
- 33A or more
- 37A or more
- 37A or more
- 36A or more
- 49A or more
- 49A or more
Cooling & Heating
Frequency Will Drop
Operation
Comp. 2 Comp. 1
- 18A or more
- 25A or more
- 25A or more
- 20A or more
- 29A or more
- 29A or more
Indoor Unit EEV
SH Decrease Control
SH Decrease Control
SH Decrease Control
SH Decrease Control
SH Decrease Control
SH = Superheating.
System Will Stop
Operation
Comp. 2 Comp. 1
- 35A or more
- 40A or more
- 40A or more
- 46A or more
- 60A or more
- 60A or more
System Will Stop
Operation
Comp. 2 Comp. 1
- 20A or more
- 27A or more
- 27A or more
- 30A or more
- 41A or more
- 41A or more
Comp. 2
-
-
-
35A or more
35A or more
40A or more
40A or more
40A or more
-
-
-
46A or more
46A or more
60A or more
60A or more
60A or more
Comp. 2
-
-
-
19A or more
19A or more
27A or more
27A or more
27A or more
-
-
-
30A or more
30A or more
41A or more
41A or more
41A or more
49