Night Quiet Mode With Mode Lock; Pcb Display; Location Of Tact-Sw1; Pcb Display Information - LG MULTI F Series Installation Manual
Multi-zone heat pump systems with lgred 1.5 to 3.5 tons
Hide thumbs
Also See for MULTI F Series:
- Engineering manual (392 pages) ,
- Installation manual (104 pages) ,
- Owner's manual (234 pages)
Table of Contents
Advertisement
FINAL INSTALLATION PROCEDURES
Night Quiet Mode with Mode Lock
Lowers the operation sound of the outdoor unit by changing the
compressor frequency and fan speeds, as well as locks the mode of
operation. Changing modes can cause a change in compressor fre-
quency, which would cause problems with the setting. As such, if this
mode is used, it is locked in either cooling or heating. The function
is rarely, if ever, used. Night quiet mode initiates eight (8) hours after
the highest outdoor air temperature is measured, then is active for
nine (9) hours.
1. Shut power down to the system.
2. For Step 1, set only DIP Switches 2 and 4 to ON.
3. For Step 2, set DIP Switches 1 and 3 to ON.
4. Turn power on to the system.
Figure 130: LMU360-420HHV Night Quiet Mode with Mode Lock DIP Switch Settings.
Step 1: Night Quiet Mode + Mode Lock (Cooling)
ON
OFF
1
2
3
4
• If compressor frequency and fan speed are decreased, cooling capacity may also decrease.
• Night Quiet Mode can only be used when system is in cooling operation.
• Change the DIP switches if Night Quiet Mode is no longer desired.
•
• Only the first four DIP switches are functional on the LMU360-420HHV.
PCB Display (Multi F with LGRED LMU360HHV
and LMU420HHV Models Only)
For Multi F MAX with LGRED LMU360HHV and LMU420HHV 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.
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
88
5
6
7
8
9 10
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 129: LMU180-240-300HHV Night Quiet Mode with Mode Lock DIP
Switch Settings.
Step 1: Night Quiet Mode + Mode Lock
(Cooling)
ON
OFF
1 2
3
4
5
5
1 2
3
4
Step 2: Reducing Saving Power Consumption + Mode Lock (Cooling)
ON
OFF
1
2
3
4
Figure 131: Location of TACT-SW1.
Display
Example
First Page
890kpa
2,900kpa
15A
230V
100Hz
230V
F
MULTI
WITH
F
MULTI
MAX
Step 2: Reducing Saving Power Consump-
tion + Mode Lock (Cooling)
ON
OFF
1 2
3
4
1 2
3
4
5
6
7
8
9 10
TACT-SW1
Second Page
"LP"
"89"
"HP"
"290"
"DS"
"85"
"CS"
"-10"
"SS"
"-10"
"AS"
"-10"
"A"
"15"
"V"
"230"
"F"
"100"
"dc"
"230"
5
5
Hide quick links:
Advertisement
Table of Contents
