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Electrical Connection
1.
Wiring connection must be done according to the wiring diagram on the unit.
2.
The unit must be GROUNDED well.
3.
An appropriate strain relief device must be used to attach the power wires to the terminal box.
4.
Field wiring must be complied with the national security regulations.
5.
A main switch or other means for disconnection, having a contact separation in all poles, must be incorporated in the
fixed wiring in accordance with the relevant local and national legislation.
*S Control Wiring Diagram: Please refer to section D.
T1 Wiring Diagram for 230VAC Input Signal:
3-speed unit with 3 Ph EH Wiring scheme
M
HIGH
Protection switch
EH element
Protection switch
EH element
Protection switch
EH element
Orange (L)
FUSE
LOW
RELAY
Brown (M)
MED
RELAY
Yellow (H)
N
RELAY
Fan control
Fuse
Fuse
Fuse
IPA18-DL-T-R230V-003
Heating signal (230V)
Cooling valve signal(230V)
L-speed signal (230V)
M-speed signal (230V)
H-speed signal (230V)
Earth
Neutral
1Ph-230V-50Hz Power input
TR kit is optional.
Live
Neutral
380~400V
3Ph
50/60Hz
Page 17 of 48
24Vac
12Vac
COM
SK2019 EU FDHD-V/P-AC-001
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