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2 Features and benefits
Drain pan for cooling installation (Accessory)
For cooling mode it is necessary to collect the draining. Hitachi supplies a new easy to install drain pan accessory designed
to integrate it into the unit's cabinet for this purpose.
2.2.2 Easy and flexible electrical installation
Side access for wiring
The electrical box has been designed with six holes on the right side for the wiring access, keeping the front side of the
box free of wires.
Easy wiring
It has been designed a big terminal board in order to allow the easy electrical connection which provides all the different
possible configurations (3-way valve, water pumps, boiler...).
Additionally, in order to help with the electrical installation works, HITACHI offers the following specific documentation:
-
Service Manual (SMXX0070) and Installation and Operation Manual: All the necessary information about how to
perform the electrical works (electrical installation, connection, dip switch setting, ...) is reflected in these docu-
ments.
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Schematic label: The different possible connections to the terminal boards are indicated by means of a schematic
label with the figure corresponding at the required configuration (see previous figure).
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Big Electrical Wiring Diagram and Caution Label: There are two labels sticked on the rear side of the electrical
box cover for a quick referring when electrical works are required. So, installer can get easy and clear wiring un-
derstanding and LCD user's interface icons/alarms by directly refering to these labels.
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Inclined terminal board: To make easier the wiring connection, the terminal board has been designed with a little
slope in order to bring to the installer a new confortable working position for wiring.
-
New separated terminal boards. The TB1 is the power connection board, and the TB2 is the accessories connec-
tion board, with four new positions for the SWP (34/35) and for the 2nd sensor control (32/33), and one new posi-
tion for a third ground socket.
N O T E
These points can be also understood as Maintenance benefits.
28
TCGB0070 rev.3 - 04/2012
Holes for wiring
connections
- Quick Links:
- Troubleshooting
- Alarm Codes
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