Multi F Engineering Manual

ART COOL MIRROR INDOOR UNITS
Installation and Best Layout Practices
Power Wiring / Communications Cable Guidelines
• Follow manufacturer’s circuit diagrams in the technical manuals.
• Confirm power source specifications.
• Confirm that the electrical capacity is sufficient.
• Starting current must be maintained ±10 percent of the rated current marked on the outdoor unit name plate.
• Confirm cable thickness specifications.
• It is required that a circuit breaker is installed, especially if conditions could become wet or moist.
• Include a disconnect in the power wiring system, add an air gap contact separation of at least 1/8 inch in each active (phase) conductor.
• Loose wiring will cause unit to malfunction, overheat, and catch fire, resulting in severe injury or death.
1. Insert the power wiring/communications cable from the outdoor
unit or branch distribution unit (Multi F MAX systems only)
through the bottom of the indoor unit.
2. Connect each wire to its appropriate terminal on the indoor unit
control board. Verify that the color and terminal numbers from
the outdoor unit or branch distribution unit (Multi F MAX systems
only) wiring match the color and terminal numbers on the indoor
unit.
3. Secure the power wiring/communications cable with the cable
restraint.
Terminal block
Power wiring /
communications cable
Wired Remote Controlle
r
Terminal (Optional)
Cable restraint
Connecting the Power Wiring and Communications Cable
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Distribution Unit Terminal Connections—LAN090HSV5 and
LAN120HSV5 models.
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Distribution Unit Terminal Connections—LAN180HSV5 models.
Indoor Unit Terminal Block
GND
Outdoor Unit Terminal Block or
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
GND
GRN / YLW
BR
BL
RD
3 or S
32(L2)1(L1)
Indoor Unit Terminal Block
1(L1 ) 2(L2)
GND
Outdoor Unit Terminal Block or
Branch Distribution Unit Terminal Block
(Multi F MAX Systems Only)
GND
GRN / YLW
BR
BL
RD
3
3 or S
Note:
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A voltage drop will cause the following problems:
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• Compressor will not receive the proper starting current.
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24 | ART COOL MIRROR
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F