Electrical Wiring - Hitachi KPI-502X4E Manual De Instalación Y Funcionamiento

ELECTRICAL WIRING

• Drain piping will require insulating if the drain is installed in a location
where condensation forming on the outside of drain pipe may drop
and cause damage. The insulation for the drain pipe must be selected
to insure vapor sealing and prevent condensation forming.
• Drain trap should be installed next to KPI unit. This trap must be de-
signed to good practice and be checked with water (charged) and
tested for correct flow. Do not tie or clamp the drain pipe and refriger-
ant pipe together.
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Checking the Drain piping (Only for KPI-(502-2002)X4E
- Pour water gradually into the drain pan
Check to ensure that the water flows smoothly or whether
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no water leakage occurs.
5.2 DRAIN PIPE CONNECTION (ONLY FOR KPI-(502-2002)X4E)
1 The position of the drain pipe connection is shown below.
2 Prepare a polyvinyl chloride pipe with 25 mm inner diameter
for KPI-(502-1002)X4E.
3 Fasten the tubing to the drain hose with an adhesive and the
factory-supplied clamp. The drain piping must be performed
with a down-slope pitch of 1/25 to 1/100.
4 Insulate the drain pipe after connecting the drain hose to
avoid any condensation.
5 Connect a syphon, as shown at the figure below.
6 ELECTRICAL WIRING
6.1 ELECTRICAL WIRING CONNECTION FOR KPI UNIT
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C A U T I O N
Use twisted shielded pair cable or shield pair cable for transmission wires
between the KPI and the outdoor units, and connect the shielded part to
the earth screw in the electrical box of the KPI unit as shown in the figure.
9 PMML0371A rev.1 - 08/2016
Remote control
Transmission wires
Power supply
wires (single
phase)
Earth screw
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N O T E
Install drainage in accordance with national and local codes.
After performing drain piping work and electrical wiring, check to
ensure that water flows smoothly as in the following procedure:
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N O T E
Pay attention to the thickness of the insulation when the left side piping is
performed. If it is too thick, piping can not be installed in the unit.
>75 mm
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N O T E
Keep electrical box and drain pipe connection free of refrigerant pipes.
!
C A U T I O N
It is very important the syphon installation in order to guarantee the proper
condensate draining.
TB
PCB1
Plug
PCB2