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HEAT PUMPS - AIR CONDITIONING - REFRIGERATION - AIR HANDLING - HEAT EXCHANGE - NA 18.752 B
Water chillers
Heat pump
HYDROCIAT LW
Notes, electrical data and operating conditions HYDROCIAT LW
•
As standard:
LW 708 to 2328 units have a single power connection point located
immediately upstream of the main disconnect switch.
HYDROCIAT LW 2800 to 4628 units have two connection points
located immediately upstream of the main disconnect switches.
•
The control box includes the following standard features:
- one main disconnect switch per circuit
(1)
,
- Starter and motor protection devices for each compressor
- anti-short cycle protection devices
(1)
,
- Control devices
•
Field connections:
All connections to the system and the electrical installations must be
in full accordance with all applicable codes.
•
The CIAT LW units are designed and built to ensure conformance with
local codes. The recommendations of European standard EN 60204-1
(corresponds to IEC 60204-1) (machine safety - electrical machine
components - part 1: general regulations) are specifically taken into
account, when designing the electrical equipment.
•
The absence of power supply disconnect switch(es) and short-cycle
protection devices in option : Non disconnect switch, but short
circuit protection, is an important factor that has to be taken into
consideration at the installation site.
Units equipped with one of these two options are supplied with a
declaration of incorporation, as required by the machinery directive.
Notes:
•
Generally the recommendations of IEC 60364 are accepted as
compliance with the requirements of the installation directives.
Conformance with EN 60204-1 is the best means of ensuring
compliance with the Machines Directive.
•
Annex B of EN 60204 1 describes the electrical characteristics
used for the operation of the machines.
1. The operating environment for the HYDROCIAT LW units is specified
below:
•
Environment(2): Environment as classified in EN 60721 (corresponds
to IEC 60721):
- indoor installation
- ambient temperature range: minimum tempe5°C to +42°C,
class AA4
- altitude: lower than or equal to 2000 m
- presence of water: class AD2 (possibility of water droplets)
- presence of hard solids, class 4S2 (no significant dust present)
- presence of corrosive and polluting substances, class 4C2
(negligible)
2. Power supply frequency variation: ± 2 Hz.
3. The neutral (N) line must not be connected directly to the unit (if
necessary use a transformer).
4. Overcurrent protection of the power supply conductors is not provided
with the unit.
5. The factory installed disconnect switch(es)/circuit breaker(s) is (are) of
a type suitable for power interruption in accordance with EN 60947-3
(corresponds to IEC 60947-3).
6. The units are designed for connection to TN networks (IEC 60364).
For IT networks the earth connection must not be at the network
earth. Provide a local earth, consult competent local organisations to
complete the electrical installation.
NOTE: If particular aspects of an actual installation do not conform to
the conditions described above, or if there are other conditions which
should be considered, always contact your local CIAT representative.
(1) Not provided for units equipped with no disconnect switch but short
circuit protection option.
(2) The required protection level for this class is IP21B or 1PX1B
(according to reference document IEC 60529). All HYDROCIAT LW
units fulfil this protection condition. In general the casings fulfil class
IP23 or IPX3B.
e
lectRical
Data
notes
■
Standard and high efficiency units
Summary of Contents for HYDROCIAT LW HE Series
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