Multi F Installation Manual

63
Wiring
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MULTI
F
MAX
MULTI
F
Wiring Error Check
Use to verify if wiring is properly installed.
1. Shut power down to the system.
2. Set DIP Switch 2 to ON.
3. Turn power on to the system.
4. Check if the Red and Green LEDs on the outdoor unit PCB are ON (indicate indoor units are in forced
operation mode).
5. If the wiring is correctly installed, the Green LED will light up. If the wiring is incorrectly installed, the
Red and Green LEDs will blink, indicating which part of the system is in error.
• Red LED = Piping Number
• Green LED = Wiring Number (Room)
Example: If the Red LED blinks twice and the Green LED blinks three times, the second
piping to the third room is in error (see at right).
• If the indoor unit(s) are not communicating properly to the outdoor unit, the Wiring
Error Check cannot operate correctly.
• Only the part of the system in error will be displayed. System will operate correctly
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• Turn DIP Switch 2 to OFF after finishing (Normal Operation setting).
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12 43
12 43
ON
OFF
Figure 91: Wiring Error Check DIP
Switch Setting.
One (1)
Second
LED 1
(Red)
LED 2
(Green)
Three (3)
Blinks
Two (2)
Blinks
One (1)
Second
One (1)
Second
One (1)
Second
Two (2)
Blinks
Three (3)
Blinks
Figure 92: Wiring Error Check Example.
Reducing Power Consumption
Enables more efficient system operation by reducing the maximum power consumption
value (reducing the MCA).
1. Shut power down to the system.
2. For Step 1, set only DIP Switch 3 to ON. For Step 2, set only DIP Switch 4 to ON.
3. Turn power on to the system.
Table 42: Reducing Power Consumption Current Levels.
Phase 1Ø
Model Multi F
LMU18CHV,
LMU24CHV
Multi F
LMU30CHV,
LMU36CHV
Multi F MAX
LMU480HV,
LMU540HV,
LMU600HV
Step 1 (A) 91322
Step 2 (A) 81121
Power
Consumption
and Current
Normal
Time
Figure 93: Reducing Power Consumption Chart.
12 43
12 43
ON
OFF
12 43
12 43
ON
OFF
Step 1 Step 2
Figure 94: Reducing Power Consumption DIP Switch Settings.
DIP SWITCH SETTINGS
• Reduced Power Consumption reduces outdoor unit capacity.
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