Installation Space; Connection Scheme - Hitachi PC-AMTB Installations- Und Betriebshandbuch

Installation
3.1 DIMENSIONS AND FIxINg POINTS
Units: mm
The device shall be fixed by using 4 screws, M4 or 4 mm diameter,
tapping type (field supplied).

3.3 CONNECTION SChEME

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Power supply installation
The installation must be provided with an independent low voltage
power supply circuit of 24 V AC or DC type.
Power supply cable sizes must be designed considering that
max. voltage dropped is not exceeding the 10%.
N O T E
• It is recommended to use 0.75 mm
size, not lighter than the polychloroprene sheathed flexible
cord (code designation 60245 IEC 57) type.
• Do not connect more than 8 devices in serial or increase
power supply cable size accordingly.
2
wires as minimum cable
2
PMML0325A rev.0 - 07/2014

3.2 INSTALLATION SPACE

Please consider that installation space must be wide enough for
wiring connection.
Units: mm
Upper view
The power supply must be capable enough to supply the
necessary power required base on the following formula:
P (watt) ≥ ( (NAtype*4.7 +NBtype*7)*0.7
power supply
Where:
• NAtype: Number of multitenant devices installed to A type
indoor units.
• NBtype: Number of multitenant devices installed to B type
indoor units.
The installation must be equipped with disconnection devices
permitting any servicing operation without power.
Front view