Electrical Wiring Connection - Hitachi ECONO-FRESH KIT EF-5GE Installation Und Betriebsanleitung

ELECTRICAL WIRING
4
In the case that the unit is used under the following
-
condition, perform additional insulation (*) or prepare a
drain pan underneath the unit.
NOTE:
Ducting arrangement must comply with local
regulations.
4. ELECTRICAL WIRING

4.1. ELECTRICAL WIRING CONNECTION

The electrical wiring connection for the unit is shown below.
Mount the outdoor thermistor at a position near the outdoor
air inlet.
Pay attention to the position of the thermistor where the
direct sunshine is not radiated or rain water is not touched
RPI PCB
RPI PCB
CN17
DSW6
THM4
CN3
Enthalpy Sensor
Enthalpy Sensor
Gas Sensor
Gas Sensor
Outdoor Thermistor
Outdoor Thermistor
4.2. SETTING OF DIP SWITCHES
Dip Switch setting shall be performanced at RPI PCB's.
CAUTION:
Turn OFF all power sources before setting the dip
switches. Without turning OFF, the contents of setting
would be invalid
4.3. OPTIONAL SENSOR CONNECTION
When installing the field-supplied sensors, select and
connect the sensors as follows.
− The type of the sensor should be of ON/OFF switching
type.
− The switch rating should be DC12V.
− Connect the wires to #1 and #2 of CN3 on the RPI
PCB. (In this case, the enthalpy sensor cannot be
applied.)
− Lead the wires through the connecting hole for the
control circuit.
RPI PCB
CN3
2
1
Optional Sensor
Optional Sensor
(DC12V, 1 to 2mA)
(DC12V, 1 to 2mA)
Connector
Connector
AS Motor
AS Motor
Econo Fresh Kit
Econo-Fresh Kit
DSW6
Saturation Curve
Ambient Temperature around Unit
Õ
WARNING:
Turn OFF the main power switch to the unit and
-
wait for more than 3 minutes before electrical wiring
work or a periodical check is performed.
Check to ensure that the indoor unit's fan has
-
stopped before electrical wiring work or a periodical
check is performed.
Protect the wires, electrical parts, etc. from rats or
-
other small animals.
If not protected, rats may gnaw at unprotected parts
and at the worst, a fire will occur.
CAUTION:
Wrap the accessory packing around the wires, and
plug the wiring connection hole with the seal material
to protect the products from any condensate water or
insects.
RPI-5HP RPI-5HP + Econo-Fresh Kit
Dip Switch installation Dip Switch Setting
Factory Setting
ON
1 2 3 4
Mark of " " indicates the position of dip switches.
1. Enthalpy Sensor (Field-Supplied)
− The switching arrangement should be as follows.
OFF: for Calling Free Cooling (Compressor OFF)
ON: for Calling Mechanical Cooling
(Compressor ON)
− Set the enthalpy sensor mode by using remote control
switch.
2. CO Gas Sensor (Field-Supplied)
2
− The switch arrangement should be as follows.
ON: for Increasing Outdoor Air Introduction
OFF: for Decreasing Outdoor Air Introduction
− Set the CO
Gas sensor mode by using remote control
2
switch.
*20 mm
80%RH
*10 mm
70%RH
*5 mm
30°C
ON
1 2 3 4