7
Use only original replacement parts for any repair or compo-
nent replacement. Consult the list of replacement parts that
corresponds to the specification of the original equipment.
Do not drain water circuits containing industrial brines,
without informing the technical service department at the
installation site or a competent body first.
Close the entering and leaving water shutoff valves and
purge the unit water circuit, before working on the compo-
nents installed on the circuit (screen filter, pump, water
flow switch, etc.).
Periodically inspect all valves, fittings and pipes of the
refrigerant and hydronic circuits to ensure that they do
not show any corrosion or any signs of leaks.
It is recommended to wear ear defenders, when working
near the unit and the unit is in operation.
2 - PRElIMINARy CHECkS
2.1 - Check equipment received
•
Inspect the unit for damage or missing parts. If damage
is detected, or if shipment is incomplete, immediately
file a claim with the shipping company.
•
Compare the name plate data with the order. The name
plate is attached in two places to the unit:
- on one of the unit sides on the outside,
- on the control box door on the inside.
•
The unit name plate must include the following
information:
-
Version number
-
Model number
-
CE marking
-
Serial number
-
Year of manufacture and test date
-
Refrigerant used and refrigerant class
-
Refrigerant charge per circuit
-
Containment fluid to be used
-
PS: Min./max. allowable pressure (high and low
pressure side)
-
TS: Min./max. allowable temperature (high and
low pressure side)
-
Pressure switch cut-out pressure
-
Unit leak test pressure
-
Voltage, frequency, number of phases
-
Maximum current drawn
-
Maximum power input
-
Unit net weight
•
Confirm that all accessories ordered for on-site installa-
tion have been supplied, are complete and undamaged.
•
Do not keep the 30RW/30RWA units outside where they
are exposed to the weather, as the sensitive control
mechanism and the electronic modules may be damaged.
The unit must be checked periodically during its whole
operating life to ensure that no shocks (handling accessories,
tools etc.) have damaged it. If necessary, the damaged parts
must be repaired or replaced. See chapter “Maintenance”.
The machine must be installed in a place that is not
accessible to the public or protected against access by
non-authorised persons.
2.2 - Moving and siting the unit
2.2.1 - moving
See chapter 1.1 - “Installation safety considerations”.
2.2.2 - siting the unit
Always refer to the chapter “Dimensions and clearances”
to confirm that there is adequate space for all connections
and service operations. For the centre of gravity coordinates,
the position of the unit mounting holes, and the weight
distribution points, refer to the certified dimensional
drawing supplied with the unit.
Typical applications of these units are in refrigeration
systems, and they do not require earthquake resistance.
Earthquake resistance has not been verified.
In case of extra-high units the machine environment must
permit easy access for maintenance operations.
CAUTION: Only use slings at the designated lifting
points which are marked on the unit.
Before siting the unit check that:
•
the permitted loading at the site is adequate or that
appropriate strenghtening measures have been taken.
•
the unit is installed level on an even surface (maximum
tolerance is 1.5 mm in both axes).
•
there is adequate space above the unit for air flow and
to ensure access to the components.
•
the number of support points is adequate and that
they are in the right places.
•
the location is not subject to flooding.
CAUTION: Before lifting the unit, check that all casing
panels are securely fixed in place. Lift and set down the
unit with great care. Tilting and jarring can damage the
unit and impair unit operation.
If 30RW/RWA units are hoisted with rigging, it is neces-
sary to protect the unit frame (side and rear panels and
front doors) against accidental crushing while a unit is
being moved. Use struts or lifting beams to spread the
slings above the unit. Do not tilt a unit more than 15°.
Always follow the instructions on the handling notice
attached to the unit.
If a unit includes a hydronic module (options 116B, 116C,
270B, 270C), the hydronic module and pump piping must
be installed in a way that does not submit it to any strain.
The hydronic module pipes must be fitted so that the pump
does not support the weight of the pipes.
Never push or lever on any of the enclosure panels (panels,
uprights, front access doors) of the unit. Only the base of
the unit frame is designed to withstand such stresses.
Checks before system start-up
Before the start-up of the refrigeration system, the complete
installation, including the refrigeration system must be
verified against the installation drawings, dimensional
drawings, system piping and instrumentation diagrams and
the wiring diagrams.
