Hitachi RAS-5FSN Installations- Und Betriebshandbuch Seite 26

ELECTRICAL WIRING
22
16.2. ELECTRICAL WIRING CONNECTION FOR OUTDOOR UNIT
ELECTRICAL WIRING CONNECTION
The electrical wiring connection for the outdoor unit is
shown below.
1. Connect the power supply wires to L1, L2, L3 and N (for
380-415V/50Hz) for the three phase power source on
the terminal board and ground wires to the terminals in
the electrical control box.
2. Connect the wires between the outdoor and indoor units
to terminals 1 and 2 on the terminal board.
3. Do not lead wires in front of the fixing screw of the
service panel. If done, the screw can not be removed.
RAS-5~20HP
Electrical box
Operating wiring
- Between I.Us. and O.Us
- Between O.Us. and O.Us.
DC5V (Non pole)
16.3. SETTING OF DIP SWITCHES FOR OUTDOOR UNIT
Quantity and Position of Dip Switches
The PCB in the outdoor unit is operated with 7 types of dip
switches and 3 types of push switch.
Position of DIP switches for
RAS-5~20FSN ; RAS-8~10FXN(E)
DSW3
Position of DIP switches for
RAS-24~30FSN ; RAS-16~30FXN:
DSW3
NOTE:
The mark " " indicates position of dips switches.
Figures show setting before shipment or after
selection.
By using DSW4, 7 or 8 the unit is started or stopped
after 10 to 20 seconds after the switch is operated.
RAS-24~30 HP
Power SourceWiring
Operating wiring DC5V (Non
pole)
- Between I.Us. and O.Us
- Between O.Us. and O.Us.
CAUTION:
Terminal of Earth Fix the operation shielded wires between the indoor
and outdoor unit with a cord band in only one point.
Shielded wires must be connected to the earth of
Connection Holes
Indoor unit only.
for wiring
4. Check the item below before turning ON the main
switch. In case that the powere source for Outdoor unit
is 415V (nominal voltage), change CN4 & CN6
(connector) to CN5 & CN7 of transformers (TF1 & 2) in
Power source wiring
the electricla control box as shown in figure below
CAUTION:
Before setting dips switches, firstly turn off power
source and set the position of the dips switches. If the
switches are set without turning off the power source,
the contents of the setting are invalid.
DSW1: Refrigerant cycle no. setting
Setting is required if H-Link is used. Setting position before
shipment are all OFF (Refrigerant cycle No. 0). In the
same Refrigerant Cycle set the same refrigerant cycle no.
for the outdoor unit and for the indoor units as shown
below.
Cycle No.
Setting Position
Cycle No.
Setting Position
Cycle No.
Setting Position
Cycle No.
Setting Position
Terminal of Earth
Wiring
Check to ensure that
the earth wiring shall
Cord Clamp
(Fixed on Valve Stay)
Seal hermetically the
entry of conduit pipe
by using putty or etc.
(for water protection)
0 1 2
ON ON ON ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
4 5 6
ON ON ON ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
8 9 10
ON ON ON ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
12 13 14
ON ON
ON ON
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
3
7
11
15