Multi Variable Heat Pump WALL Mounted Type Indoor Unit
10
ON/OFF at the same time.
Fig 5.2
For units with single-phase power supply.
(1)
Detach the electric box lid.
(2)
Lead the power cord through the wiring holes.
(3)
Connect the power cord to terminal "L, N,
".
(4)
Fix the power cord with wiring clamp.
(5)
The wire diameter of p
ower cord can’t be less than 18AWG.
5.3 Connection of Communication Line of IDU and ODU
(1)
Open the cover of electric box on indoor unit.
(2)
Lead the communication line through the rubber ring.
(3)
Connect the communication line to terminal D1 and D2 on the 4-digit wiring board of
indoor unit, as shown in Fig.5.3.1.
Fig 5.3.1 Fig 5.3.2
(4)
Secure the communication line to the electric box with the wire.
(5)
In order to ensure the reliability of communication between IDU and ODU and the
communication among each IDU, add a matched resistance (supplied with system) on
the wiring board of the last indoor unit in a series connection. The matched resistance
should be connected in parallel between terminal screw D1 and D2, as shown in Fig.
5.3.2.
5.4 Connection of Communication Line of Wired Controller
(1)
Open the cover of electric box of indoor unit.
(2)
Lead the communication line of wired controller through the rubber ring.
(3)
Connect the communication wire to terminal H1 and H2 of indoor 4-bit wiring board.
(4)
Secure the communication wire to the electric box with wire clip.
