Electrical Work; 1-1.General Cautions - Mitsubishi Electric CITY MULTI H Series Manual

1. Electrical work

1-1. General cautions
I. 1. Electrical work
Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring
regulations, and guidance of each electric power company.
Wiring for control (hereinafter referred to as transmission
wiring so that it is not influenced by electric noise from power source wiring. (Do not insert transmission
source wire in the same conduit.)
Be sure to provide designated grounding work to outdoor unit.
Give some allowance to wiring for electrical part box of indoor and outdoor units, because the box is sometimes removed
at the time of service work.
Never connect 100V, 208~230V power source to terminal block of transmission
burnt out.
Use 2-core shield cable for transmission
multiplecore cable, the resultant poor transmitting and receiving will cause erroneous operations.
Outdoor
unit
OK
2-core shield cable
2-core shield cable
cable . If transmission
Indoor unit
Remote
controller
BC controller
SYSTEM DESIGN
cable ) shall be (50mm[1-5/8in] or more) apart from power source
cable
cables of different systems are wired with the same
Outdoor
unit
NO
Multiple-
core cable
DATA U5
cable and power
. If connected,electrical parts will be
Indoor unit
Remote
controller
BC controller
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