Electrical Wiring; General Check - Hitachi Ras-2Hvnp Installations- Und Betriebshandbuch

16

1 Electrical wiring

16 ELECTRICAL WIRING

16.1 GENERAL CHECK

1 Ensure that the field-supplied electrical components (mains
power switches, circuit breakers, wires, connectors and wire
terminals) have been properly selected according to the elec-
trical data indicated. Make sure that they comply with national
and regional electrical codes.
2 Following the Council Directive 2004/108/EC(89/336/EEC),
relating to electromagnetic compatibility, next table indicates:
Maximum permissible system impedance Z
point of the user's supply, in accordance with EN61000-3-11
Z max
MODEL
RAS-2HVNP
RAS-2.5HVNP
3 Harmonics situation of each model regarding IEC 61000-3-2
and IEC 61000-3-12 is as follows:
MODELS SITUATION REGARDING
IEC 61000-3-2 AND IEC 61000-3-12
Ssc "xx"
Equipment complying with IEC 61000-3-2
(professional use)
4 Check to ensure that the power supply voltage is within +/-
10% of the rated voltage.
5 Check to ensure that power supply has an impedance low
enough to warranty not reduce the starting voltage more than
85% of the rated voltage.
6 Check to ensure that the ground wire is connected.
7 Connect a fuse of specified capacity.
N O T E
Check and test to ensure that if there is more than one source of
power supply, that all are turned OFF.
16.2 ELECTRICAL WIRING CONNECTION FOR OUTDOOR UNITS
The electrical wiring connection for the outdoor unit is shown in
figure below:
L1
30
at the interface
max
Z max
MODEL
(Ω)
RAS-3HVNC
-
RAS-3HVRNS3
MODELS
RAS-2HVNP
RAS-2.5HVNP
RAS-3HVNC
RAS-3HVRNS3
L2
1 2
N
PMML0248A
C A U T I O N
• Check to ensure that screws for terminal block are tightly
tightened.
• Check to ensure that the indoor fan and the outdoor fan have
stopped before electrical wiring work or periodical check is
performed.
• Protect the wires, drain pipe, electrical parts, from rats or
other small animals. If not protected, rats may damage unpro-
tected parts, and at the worst, a fire will occur.
(Ω)
• Wrap the accessory packing around the wires, and plug the
-
wiring connection hole with the seal material to protect the
product from any condensed water and insects.
• Tightly secure the wires with the cord clamp inside the indoor
unit.
• Lead the wires through the knockout hole in the side cover
when using conduit.
• Secure the cable of the remote control switch with the cord
clamp inside the electrical box.
• Electrical wiring must comply with national and local codes.
Contact your local authority in regards to standards, rules, re-
gulations, etc.
• Check that the ground wire is securely connected.
Connect a fuse of specified capacity.
•
D A N G E R
• Do not connect of adjust any wiring or connections un-
less the main power switch is OFF.
• Check that the earth wire is securely connected, tagged
and locked in accordance with national and local codes.
Instructions for wiring and electrical board:
Power wires
PCB
Earth terminal
Side cover
Transmission
wires