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Hitachi KPI-252E4E Installations- Und Betriebshandbuch Seite 16

Energy recovery ventilation units
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ELECTRICAL WIRING
The electrical wiring connection for the unit is shown below:
1 Cut out the centre of the rubber bushing in the wiring
connection hole, as shown in next figure
Cut inside
2 Connect the cable of an optional remote control switch or
an optional extension cable to the connectors on the printed
circuit board inside the electrical box through the connecting
hole in the cabinet.
3 Connect the power supply and earth wires to the terminals in
the electrical box.
4 Tightly clamp the wires using the cord clamp inside the
electrical box.

Field Minimum Wire Sizes for Power Source
Ensure that the field-supplied electrical components (mains
power switches, circuit breakers, wires, connectors and wire
terminals) have been properly selected according to the
electrical data indicated.
Make sure that they comply with national and regional electrical
codes and regulations.
Power
Model
source
KPI-252E4E
KPI-502(E/X)4E
KPI-802(E/X)4E
1~, 230V
50 Hz
KPI-1002(E/X)4E
KPI-1502E4E
KPI-2002E4E
6.2 SETTINGS OF DIP SWITCHES

Dip switches quantity, position and factory setting
!
C A U T I O N
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.
10
PMML0371A rev.1 - 08/2016
Rubber bushing
Power Source
Cable Size
Maximum
current (A)
EN60 335-1
(*1) (mm2)
4
1
4
1
4
1
8
1.5
8
1.5
8
1.5
5 Seal the wiring connection hole after running the cables with
the seal material to protect the unit from condense water or
insects.
6 In the case that the power cables are connected in
series,check the amount of current is less than 50 A.
Select the main switches in according to the next table:
Power
Model
source
KPI-252E4E
KPI-502(E/X)4E
KPI-802(E/X)4E
1~ 230V50Hz
KPI-1002(E/X)4E
KPI-1502E4E
KPI-2002E4E
ELB: Earth leakage breaker; CB: Circuit breaker
?
N O T E
The above wire sizes marked with (*1) are selected at the maximum
current of the unit according to the European Standard, EN60 335-1.
Use a shielded cable and connect it to ground.
In the case that power cables are connected in series, add each unit
maximum current and select wires below.
Follow local codes and regulations when selecting field wires, Circuit
breakers and Earth Leakage breakers
Use the wires which are not lighter than the ordinary polychloroprene
sheathed flexible cord (code designation H05RN-F).
0
0
ELB
Maximum
CB
(nº poles/A/
current (A)
(A)
mA)
(mm2)
4
6
4
6
4
6
2/40/30
8
10
8
10
8
10

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