Measures, Provisions, Procedures Against Emergencies; Preliminary Checks; Check Equipment Received; Moving And Placing The Unit - Carrier 61WG 020 Installation, Operation And Maintenance Instructions

1.5 - Measures, provisions, procedures against
emergencies
When the machine is subjected to heat or fire, a device
prevents explosion by releasing the refrigerant (via the relief
valve). This fluid can be decomposed into toxic waste when
subjected to flame:
- Stay away from the unit.
- Set up warnings and recommendations for personnel in
charge to stop the fire.
- Fire extinguishers appropriate to the system and the
refrigerant type must be easily accessible.

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 the options ordered for on-site installation
have been supplied, are complete and undamaged.
• Do not keep the 61WG/30WG/30WGA 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, repair or replace the
damaged parts (see chapter 15 "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 placing the unit

2.2.1 - Moving
See chapter 1.1 - "Installation safety considerations" .
2.2.2 - Placing 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 support points are located at the four lower
corners.
• the positioning at these four points must be horizontal
(level tolerance 1.5 mm/m in both axes)
• if the support structure is sensitive to vibration and/or
noise transmission it it advisable to insert anti-vibration
mounts (elastomeric mounts or springs) between the unit
and the structure. Selection of these devices is based on
the system characteristics and the comfort level required
and should be made by technical specialists.
• 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.
• No material or object that can be affected by condensate
(even a small amount) must be left under the machine
or in the water flow direction.
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.
ATTENTION: Stacked units must not be moved.
If 61WG/30WG/30WGA units are hoisted with rigging, it
is necessary to protect the unit frame (side and rear panels
and front doors) against accidental crushing. Use struts or
lifting beams to spread the slings above the unit. Do not tilt
a unit more than 15°, or 5° for units with the stacking option
(option 273). Always follow the instructions on the handling
notice attached to the unit.
If a unit includes a hydronic module (options 116 or 270),
the hydronic module and pump piping must be installed in
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