LG MULTI F Installation Manual page 90
Multi-zone heat pump systems
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Also See for MULTI F:
- Engineering manual (224 pages) ,
- Installation manual (65 pages) ,
- Install (9 pages)
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FINAL INSTALLATION PROCEDURES
Mode Lock
Prevents mixed mode operation (mode change) in applications
where only one mode is necessary.
1. Shut power down to the system.
2. For Only Cooling Mode Lock, set only DIP Switches 1 and 2 to
ON. For Only Heating Mode Lock, set only DIP Switches 3 and 4
to ON.
3. Turn power on to the system.
PCB Display (Multi F LMU18-24CHV
and LMU600HV Models Only)
For Multi F LMU18CHV, LMU24CHV, and LMU600HV outdoor units,
the cycle data can be checked without using LG Monitoring View
(LGMV) Diagnostic Software by pushing TACT-SW1. See below
for the types of cycle information that will be displayed in LGMV.
After first page is displayed, the second page will be subsequently
displayed.
TACT-SW1. There is risk of physical injury or death due to electric
shock.
Table 40: PCB Display Information.
TACT-SW1
No. of Pushes
One (1) Time
Two (2) Times
Three (3) Times
Four (4) Times
Five (5) Times
Six (6) Times
Seven (7) Times
Eight (8) Times
Nine (9) Times
Ten (10) Times
90
Description
Low Pressure
High Pressure
Discharge Temperature
Condenser Outlet Temperature
Suction Temperature
Outdoor Unit Air Temperature
Current
Voltage
Compressor Hz
DC Link Voltage
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 121: Mode Lock DIP Switch Settings.
Only Cooling Mode Lock
ON
OFF
1 2
3
4
1 2
3
4
Figure 122: Location of TACT-SW1 (LMU18-24CHV).
Figure 123: Location of TACT-SW1 (LMU600HV).
Display
Example
First Page
890kpa
2,900kpa
15A
230V
100Hz
230V
F
MULTI
F
MULTI
Only Heating Mode Lock
ON
OFF
1 2
3
1 2
3
TACT-SW1
TACT-SW1
Second Page
"LP"
"89"
"HP"
"290"
"DS"
"85"
"CS"
"-10"
"SS"
"-10"
"AS"
"-10"
"A"
"15"
"V"
"230"
"F"
"100"
"dc"
"230"
MAX
4
4
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