Multi F Installation Manual

64
MULTI F / MULTI F MAX 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
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 2 and 3 to ON. For Step 2, set
only DIP Switches 1 and 4 to ON.
3. Turn power on to the system.
• If compressor frequency and fan speed are decreased, cooling capacity also may decrease 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.
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Figure 95: Saving Power Consumption with Mode Lock DIP Switch Settings.
12 43
12 43
ON
OFF
Reducing Power Consumption with Mode Lock
Enables more efficient system operation by lowering the maximum power consumption value, as well as locks the mode of operation (Exam-
ple: In a cooling-only server room application where permission to adjust the system mode is highly limited). Changing modes can cause a
change in compressor frequency, 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.
1. Shut power down to the system.
2. Set DIP Switches as indicated below, following the steps and chosen mode.
3. Turn power on to the system.
Step 1: Reducing Saving Power Consump-
tion + Mode Lock (Cooling)
Step 2: Reducing Saving Power Consump-
tion + Mode Lock (Cooling)
12 43
12 43
ON
OFF
Step 1: Reducing Saving Power Consump-
tion + Mode Lock (Heating)
Step 2: Reducing Saving Power Consump-
tion + Mode Lock (Heating)
12 43
12 43
ON
OFF
12 43
12 43
ON
OFF
Figure 96: Night Quiet Mode DIP Switch Settings.
12 43
12 43
ON
OFF
12 43
12 43
ON
OFF
Step 1 Step 2
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.
12 43
12 43
ON
OFF
Step 1: Night Quiet Mode + Mode Lock
(Cooling)
Step 2: Reducing Saving Power Consump-
tion + Mode Lock (Cooling)
12 43
12 43
ON
OFF
Figure 97: Night Quiet Mode with Mode Lock DIP Switch Settings.
DIP SWITCH SETTINGS
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