6
Never apply an open flame or live steam to a refrigerant
container. Dangerous overpressure can result.
During refrigerant removal and storage operations follow
applicable regulations. These regulations, permitting condition-
ing and recovery of halogenated hydrocarbons under optimum
quality conditions for the products and optimum safety
conditions for people, property and the environment are
described in standard NFE 29795.
Please refer to the certified dimensional drawings for the units.
Do not re-use disposable (non-returnable) cylinders or attempt
to refill them. It is dangerous and illegal. When cylinders are
empty, evacuate the remaining gas pressure, and move the
cylinders to a place designated for their recovery. Do not
incinerate.
Do not attempt to remove refrigerant circuit components or
fittings, while the machine is under pressure or while it is
running. Be sure pressure is at 0 kPa before removing
components or opening a circuit.
Do not attempt to repair or recondition any safety devices
when corrosion or build-up of foreign material (rust, dirt,
scale, etc.) is found within the valve body or mechanism. If
necessary, replace the device. Do not install safety valves in
series or backwards.
ATTENTION: No part of the unit must use feet, racks or
supports during operation. Periodically monitor and repair
or if necessary replace any component or piping that shows
signs of damage.
Do not step on refrigerant lines. The lines can break under
the weight and release refrigerant, causing personal injury.
Do not climb on a machine. Use a platform, or staging to
work at higher levels.
Use mechanical lifting equipment (crane, hoist, winch, etc.)
to lift or move heavy components. For lighter components,
use lifting equipment when there is a risk of slipping or losing
your balance.
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 hydronic circuit, before working on the components
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 - MOvINg aND sITINg ThE UNIT
2.1 - Moving
See chapter “Installation safety considerations”.
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 distribu-
tion points, refer to the certified dimensional drawing
supplied with the unit.
Typical applications of these units do not require earthquake
resistance. Earthquake resistance has not been verified.
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 5 mm in both axes).
•
there is adequate space above the unit for air flow and to
ensure access to the components (see dimensional
drawings).
•
the number of support points is adequate and that they are
in the right places.
•
the location is not subject to flooding.
•
for outdoor installations, where heavy snowfall is likely
and long periods of sub-zero temperatures are normal,
provision has to be made to prevent snow accumulating by
raising the unit above the height of drifts normally
experienced. Baffles may be necessary to deflect strong
winds. They must not restrict air flow into the unit.
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 30RQ units are hoisted with rigging, it is advisable to protect
coils against crushing while a unit is being moved. Use struts or
a lifting beam to spread the slings above the unit. Do not tilt a
unit more than 15°.
The unit includes service valves upstream and downstream of
the EXV (facilitate servicing the EXV). Do not change the
valve settings while the unit is in operation. The unit must not
be stored with these valves closed.
WARNING: Never push or lever on any of the enclosure
panels of the unit. Only the base of the unit frame is designed
to withstand such stresses.
