Multi F Outdoor Condenser Installation Manual

89
Final Installation Procedures
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MULTI
F
MAX
MULTI
F
• If compressor frequency and fan speed are
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accordingly.
• 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.
• If indoor unit operation is set by the fan speed
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• Only the first four DIP switches are used to set
settings and functions.
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. For Step 2, set DIP Switches 1 and 3 to
ON.
3. Turn power on to the system.
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(Cooling)
Step 2: Reducing Saving Power Consump-
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Figure 126: LMU183-243-303-363HV Mode Lock DIP Switch Settings.
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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.
Only Cooling Mode Lock Only Heating Mode Lock
Figure 127: LMU481-541-601HV Mode Lock DIP Switch Settings.
Only Cooling Mode Lock
Only Heating Mode Lock
1234
56
ON
OFF
1234
56
ON
OFF
Figure 128: LMU183-243-303-363HV Night Quiet Mode with Mode Lock
DIP Switch Settings.
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settings and functions.
Figure 129: LMU481-541-601HV Night Quiet Mode with Mode Lock DIP Switch Settings.
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(Cooling)
Step 2: Reducing Saving Power Consump-
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1234
56
ON
OFF
1234
56
ON
OFF
Table 40: 1LJKW4XLHW0RGH0RGH/RFN6HWWLQJV
Type Model Number Night Quiet
Standard Cooling
Sound Level (dBA)
Step 1
(dBA)
Step 2
(dBA)
Multi F
LMU183HV ODU DIP Switch 48 46 44
LMU243HV ODU DIP Switch 49 46 44
LMU303HV ODU DIP Switch 51 49 46
LMU363HV ODU DIP Switch 51 49 46
Multi F MAX
LMU481HV ODU DIP Switch 53 49 46
LMU541HV ODU DIP Switch 53 49 46
LMU601HV ODU DIP Switch 56 51 47
12 43
12 43
ON
OFF
5
5
12 43
12 43
ON
OFF
5
5
12 43
12 43
ON
OFF
5
5
12 43
12 43
ON
OFF
5
5