Service manual

- 16 -
WS
Series
Advanced air conditioning systems
7. INSTALATION INSTRUCTIONS
7.1 General
All parts and accessories are packed and shipped with appropriate measure to ensure that
everything is protected during transportation.
The installation team must be familiar with the installation requirements, to exercise due care
in handling and to prevent damage to the equipment.
The following instructions are in addition to any state and municipal regulations which may
apply. These instructions do not cover all features concerning HVAC installation or methods
of procedure.
The appliance shall be installed in accordance with the national wiring regulations.
The installation must be performed in accordance with manufacturer's specifications using
only approved piping, original cables and original accessories.
Note: The appliance is classified as a stationary class I motor-operated appliance.
7.2 Electrical Requirements
The appliance is stationary and shall be connected to the electrical supply by fixed
wiring.
The air conditioner must be directly connected to an appropriate power supply.
Use only fuses as specified in the data tables.
Use only a single length power cable, without extensions.
If the supply cord is damaged, it must be replaced by a qualified electrician and in
accordance with national wiring regulations.
Cable and conduit entries shall be suitable for cables or conduits having maximum
overall diameters of 14 mm and 16 mm (23 mm in USA and Canada), respectively.
Introduction of conduit or cable does not reduce clearances below 2 mm for basic
supplementary insulation and 2 mm for functional insulation.
Supply cord shall not be lighter than each of the following (a lower number in the
code designation of the cord in IEC 60227 or IEC 60245 indicates a lighter type):
a. Ordinary tough rubber sheathed cord (code designation 60245 IEC 53)
b. Light polyvinyl chloride sheathed cord (code designation 60227 IEC 53)
Nominal cross-sectional area for conductors of supply cord (cable for fixed wiring)
shall be 2.5-6 mm².
Supply cord shall not be in contact with sharp points or edges of the appliance.
The supply cord shall have a green/yellow core that is connected to the earthing
terminal of the appliance and to the earth contact of the outlet.
Conductors of supply cords shall not be consolidated by lead-tin soldering where they
are subjected to contact pressure, unless the clamping means is constructed so that
there is no risk of bad contact due to cold flow of the solder.
Mounting the cord to part of the enclosure shall not damage the insulation of the
supply cord.
Chord anchorages shall be arranged so that they are only accessible with the aid of a
tool or shall be constructed so that the cord can only be fitted with the aid of a tool.
The insulated conductors of the supply cord shall be additionally insulated from
accessible metal parts by basic insulation. This insulation may be provided by the
sheath of the supply cord or by other means.