LGRED Installation Manual

86
MULTI F / MULTI F MAX with LGRED Outdoor Unit Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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MULTI
F
MAX
MULTI
F
WITH
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.
12 43
12 43
ON
OFF
5
5
Only Cooling Mode Lock Only Heating Mode Lock
12 43
12 43
ON
OFF
5
5
Figure 122: LMU361-421-480HHV Night Quiet Mode DIP Switch Settings.
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the LMU361, 421, 480HHV.
Night Quiet Mode
Lowers the operation sound of the outdoor unit by changing the com-
pressor frequency and fan speeds. 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 1 and 4 to ON.
3. For Step 2, set only DIP Switches 2 and 3 to ON.
4. Turn power on to the system.
Figure 121: LMU180-240-300HHV Night Quiet Mode DIP Switch Settings.
12 43
12 43
ON
OFF
5
5
Step 1
12 43
12 43
ON
OFF
5
5
Step 2
FINAL INSTALLATION PROCEDURES
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Figure 123: LMU180-240-300HHV Mode Lock DIP Switch Settings.
Figure 124: LMU361-421-480HHV Mode Lock DIP Switch Settings.
Only Cooling Mode Lock
Only Heating Mode Lock
Step 1
Step 2
1234
56
ON
OFF
1234
56
ON
OFF
1234
56
ON
OFF
1234
56
ON
OFF
Operation sound: Step 1 > Step 2.
• 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 LMU361, 421, 480HHV.