Mitsubishi Electric PXZ-4F75VG Manual De Instalación página 10

1-6. DRAIN PIPING FOR OUTDOOR UNIT
Please perform the drain piping work only when draining from one place.
1) Choose one hole to discharge drain and install the drain socket (1) to the hole.
2) Close the rest of the holes with the drain caps (2).
3) Connect the soft PVC hose (K) of 15 mm in the inside diameter on the market with the drain socket (1) and lead drain.
Note:
Install the unit horizontally.
Do not use the drain socket (1) and the drain caps (2) in the cold regions. Drain may freeze and it makes the fan stop.
The outdoor unit produces condensate during the heating operation. Select the installation place to ensure to prevent the outdoor unit and/or the grounds from
being wet by drain water or damaged by frozen drain water.
2. OUTDOOR UNIT INSTALLATION
2-1. CONNECTING WIRES FOR OUTDOOR UNIT
1) Remove the service panel.
2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (B) from
the indoor unit correctly on the terminal block. Be careful not to make mis-wiring.
Fix the wire to the terminal block securely so that no part of its core is appeared,
and no external force is conveyed to the connecting section of the terminal block.
en
3) Firmly tighten the terminal screws to prevent them from loosening. After tighten-
ing, pull the wires lightly to confirm that they do not move.
4) Perform 2) and 3) for each indoor unit.
5) Connect power supply cord (A).
6) Fix indoor/outdoor unit connecting wire (B) and power supply cord (A) with the
cable clamps.
7) Close the service panel securely. Make sure that 3-3. PIPE CONNECTION is
completed.
• After making connections between both power supply cord (A) and indoor/
outdoor unit connecting wire (B), be sure to fix both cable and wire with cable
clamps.
<Case1> Connecting with Cylinder unit / Hydrobox / DHW tank
Connect the Cylinder unit / Hydrobox / DHW tank to Room A only. "*1" below
Also, use a separate power source to power the Cylinder unit / Hydrobox / DHW tank. "*2" below
Indoor/outdoor unit
connecting wire
Terminal block for power supply
POWER SUPPLY
~/N 230 V 50 Hz *2
<Case2> Connecting without Cylinder unit / Hydrobox / DHW tank
Indoor/outdoor unit
connecting wire
8
<OUTDOOR UNIT>
*1
A B D
Terminal block Terminal block
Terminal block Terminal block
A B D
<Cylinder unit / Hydrobox /
<ATA INDOOR UNIT>
DHW tank>
<OUTDOOR UNIT>
D
A
Terminal block Terminal block
Terminal block Terminal block
A D
<ATA INDOOR UNIT>
15 mm
Terminal block for
35 mm
power supply
Lead wire
• Be sure to attach each screw to its correspondent terminal
when securing the cord and/or the wire to the terminal block.
• Make earth wire a little longer than others.
POWER SUPPLY
(More than 35 mm)
~/N 230 V 50 Hz
• For future servicing, give extra length to the connecting wires.
This tap mark indicates the Cylinder unit / Hydrobox /
DHW tank connection side for the following parts.
Terminal block for
power supply
POWER SUPPLY
~/N 230 V 50 Hz
Terminal block for power supply
Service panel
• Terminal block for the connecting
cables, S2/S3 (cannot connect to S1)
• Stop valves, gas and liquid for the
refrigerant connection