LGRED Heat Installation Manual

87
Final Installation Procedures
Due to our policy of continuous product innovation, some specifications may change without notification.
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MULTI
F
MAX
MULTI
F
WITH
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.
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risk of physical injury or death due to electric shock.
TACT-SW1
No. of Pushes
Description
Display
Example First Page Second Page
One (1) Time Low Pressure 890kpa “LP” “89”
Two (2) Times High Pressure 2,900kpa “HP” “290”
Three (3) Times Discharge Temperature & “DS” “85”
Four (4) Times Condenser Outlet Temperature & “CS” “-10”
Five (5) Times Suction Temperature & “SS” “-10”
Six (6) Times Outdoor Unit Air Temperature & “AS” “-10”
Seven (7) Times Current 15A “A” “15”
Eight (8) Times Voltage 230V “V” “230”
Nine (9) Times Compressor Hz 100Hz “F” “100”
Ten (10) Times DC Link Voltage 230V “dc” “230”
Table 40: PCB Display Information.
Figure 128: LMU360-420HHV Night Quiet Mode with Mode Lock DIP Switch Settings.
TACT-SW1
FINAL INSTALLATION PROCEDURES
• 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.
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• Only the first four DIP switches are functional on the LMU360-420HHV.
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.
12 43
12 43
ON
OFF
5
5
Step 1: Night Quiet Mode + Mode Lock
(Cooling)
Step 2: Reducing Saving Power Consump-
tion + Mode Lock (Cooling)
12 43
12 4
3
ON
OFF
5
5
Figure 127: LMU180-240-300HHV Night Quiet Mode with Mode Lock DIP
Switch Settings.
Figure 129: Location of TACT-SW1.
Step 1: Night Quiet Mode + Mode Lock (Cooling) Step 2: Reducing Saving Power Consumption + Mode Lock (Cooling)
1234
5678 910
ON
OFF
1234
5678 910
ON
OFF
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