Mitsubishi Electric PAC-IF082B-E - 10.4 Main Remote Controller Wiring

54
10. Multiple outdoor units control
10.3.1 Main unit
FTC (Main)
10.3 Electrical connection
All electrical work should be carried out by a suitably qualied technician. Failure to comply with this could lead to electrocution, re, and death. It will also invalidate prod-
uct warranty. All wiring should be according to national wiring regulations.
FTC (Main)
TB1
TB2
S1
S2
S3
Power
supply
~/N
230V
50Hz
Wiring
circuit
breaker
or
Isolating
switch
Earth
leakage
breaker
circuit
L
N
<Fig. 10.3.1>
S1
S2
S3
L
N
L
N
BLACK BLACK
YELLOW YELLOW
CN01
CN01
CN01
FTC
(Main)
FTC
(Main)
S1
S2
S3
Initial settings
(Power supplied
by outdoor unit)
Modified settings
(Separate power
supply to
FTC (Main))
YELLOW
YELLOW
BLACK
BLACK
CN01
en
Outdoor unit must NOT be connected to FTC (Main) unit.
FTC (Main) unit electrical box connector connections changed. (See Fig. 10.3.2.)
<Fig. 10.3.2>
10.3.2 Sub unit
Connect each outdoor unit to a sub unit.
FTC (Sub) can be powered in two ways.
1. Power cable is run from the outdoor unit to a sub unit.
2. FTC (Sub) has independent power source.
FTC (Main) (PAC-IF08*B-E) used as sub
• For wiring as a sub controller, refer to "4.1 Electrical connection". *1
*1 Do not connect the power cable to the booster heater because it does not work
in sub controller setting.
Hydrobox
• For wiring as a sub controller (hydrobox) , refer to "4.4 Electrical Connection" in Hydrobox installation manual.
Notes: 1. Do not connect the power cable to the booster heater because it doesn’t work in sub controller setting.
2. Do not connect the main remote controller cable.
<Before system set up>
Insert the included SD memory card into the FTC control board. (Refer to section 4.11.)