40
Multi F
Art Cool™ Mirror W
all-Mounted Indoor Unit
Due to our policy of continuous product innovation, some specifications may change without notification.
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MAX
MULTI
F
MULTI
F
ELECTRICAL WIRING
Power Wiring Specifications and Best Practices/Controller Options
Communication Cables Between the Wall Indoor Unit and the Central
Controller
•
Simple Controllers: field-provided, 18 gauge, stranded two-conductor communication cable (shielded).
•
All other Central Controllers: field-provided, 18 gauge, stranded two-conductor communication cable (shielded).
• Insulation material as recommended by local code.
• Connect all central control devices such as ACP, BACnet
®
and LonWorks
®
gateways, and energy recovery ventilators all on the same
cable. Order does not matter. Polarity does. Keep “A” terminals with “A” terminals, and “B” terminals with “B” terminals.
• Starting at the outdoor unit, terminate the cable on terminals Internet A and Internet B. Route the cable as needed between each device.
• Use a four (4) conductor stranded, shielded or unshielded cable
between the Multi Zone outdoor unit and the indoor units (if
shielded, must be grounded to chassis at the outdoor unit only).
• Minimum 18 gauge shielded CVVS or CPEVS cable.
• Insulation material as required by local code.
• Rated for continuous exposure of temperatures up to 140°F.
• Maximum allowable cable length: 984 feet.
• Firmly attach the cable; provide slack but secure in a way to pre-
vent external forces from being imparted on the terminal block.
• Wiring should be completed without splices.
• Terminate the cable shield to a grounded surface at the outdoor
unit only.
Note:
• Always verify the communication cable is connected to a communications terminal on the Multi Zone unit. Never apply line voltage
power to the communication cable connection. If contact is made, the PCBs may be damaged.
• The shield of the communications cable connecting the outdoor unit to the indoor unit should be grounded only to the outdoor unit frame.
• Tie the shield of each cable segment together using a wire nut at each indoor unit. Maintain polarity throughout the communication network.
General Power / Communication Cable Specifications
Controller Options
Refer to the table at right as to which remote controller model is used for each indoor unit. Once all wiring is connected to the indoor and
outdoor units be sure to test the accompanying remote controllers for performance. As always, follow all safety warnings and notes when
operating the units using the remote controller. Additionally, all of the Multi F/Multi F Max outdoor models can use the following controllers
when accompanied with the PI 485 VNet Accessory:
Multi Zone IDU Model
Wireless Controller Model
LAN090-120-180HSV4
AKB73835317
Table 26: IDU Models and Associated Wireless Controller Model
• AC Smart
• ACP
• BACnet
®
• LonWorks
®
• LGMV
BACnet
®
is a registered trademark of ASHRAE. LonWorks
®
is a regis-
tered trademark of Echelon Corporation.
