LGRED 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
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 LMU361, 421, 480HHV.
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: Night Quiet Mode + Mode Lock
(Cooling)
12 43
12 4
3
ON
OFF
5
5
Figure 125: LMU180-240-300HHV Night Quiet Mode with Mode Lock DIP
Switch Settings.
Figure 126: LMU361-421-480HHV Night Quiet Mode with Mode Lock DIP Switch Settings.
Step 1: Night Quiet Mode + Mode Lock (Cooling)
Step 2: Night Quiet Mode + Mode Lock (Cooling)
1234
56
ON
OFF
1234
56
ON
OFF
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Table 40: Night Quiet Mode + Mode Lock Settings.
Type Model Number Night Quiet Standard Cooling Sound Level (dBA) Step 1 (dBA) Step 2 (dBA)
Multi F with LGRED
LMU180HHV ODU DIP Switch 50 48 45
LMU240HHV ODU DIP Switch 52 48 45
LMU300HHV ODU DIP Switch 52 48 45
Multi F MAX with LGRED
LMU361HHV ODU DIP Switch 53 51 47
LMU421HHV ODU DIP Switch 54 51 47
LMU480HHV ODU DIP Switch 54 51 47