RISK OF EXPLOSION
Never use air or a gas containing oxygen during leak tests
to purge lines or to pressurise a machine. Pressurised air
mixtures or gases containing oxygen can be the cause of
an explosion. Oxygen reacts violently with oil and grease.
Only use dry nitrogen for leak tests, possibly with an
appropriate tracer gas.
If the recommendations above are not observed, this can
have serious or even fatal consequences and damage the
installation.
Never exceed the specified maximum operating pressures.
Verify the allowable maximum high- and low-side test
pressures by checking the instructions in this manual and
the pressures given on the unit name plate.
Do not unweld or flamecut the refrigerant lines or any
refrigerant circuit component until all refrigerant (liquid and
vapour)as well as the oil have been been transferred from
the heat pump. Traces of vapour should be displaced with
dry air nitrogen. Refrigerant in contact with an open flame
can produce toxic gases.
The necessary protection equipment must be available, and
appropriate fire extinguishers for the system and the
refrigerant type used must be within easy reach.
Do not siphon refrigerant.
Avoid spilling liquid refrigerant on skin or splashing it into
the eyes. Use safety goggles and safety gloves. Wash any
spills from the skin with soap and water. If liquid refrigerant
enters the eyes, immediately and abundantly flush the eyes
with water and consult a doctor.
The accidental releases of the refrigerant, due to small leaks
or significant discharges following the rupture of a pipe or
an unexpected release from a relief valve, can cause
frostbites and burns to personnel exposed. Do not ignore
such injuries. Installers, owners and especially service
engineers for these units must:
• Seek medical attention before treating such injuries.
•
Have access to a first-aid kit, especially for treating eye
injuries.
We recommend to apply standard EN 378-3 Annex 3.
Never apply an open flame (blowlamp) or overheated steam
(high-pressure cleaner) to the refrigerant circuit. Dangerous
overpressure can result.
During refrigerant removal and storage operations follow
applicable regulations. These regulations, permitting
conditioning 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 NF E29-795.
Refer to the certified dimensional drawings for the units.
It is dangerous and illegal to re-use disposable (non-
returnable) reclaim cylinders or attempt to refill them. When
reclaim cylinders are empty, evacuate the remaining gas
pressure, and move them to a designated place for 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 and that the unit has
been shut-down and de-energised 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 relief valve in
series or backwards.
No part of the unit must be used as a walkway, rack
or support. Periodically check 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 component replacement. Consult the list of
replacement parts for 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 shut-off valves
and purge the unit hydraulic 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 hydraulic 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.
Always ensure you are using the correct refrigerant
type before recharging the unit.
Charging any refrigerant other than the original
charge type (R-407C) will impair machine operation
and can even lead to a destruction of the
compressors. The compressors operate with
R-407C and are charged with a synthetic polyol-
ester oil.
Before any intervention on the refrigerant circuit,
the complete refrigerant charge must be recovered.
1 - INTRODUCTION
EN-7
AQUACIAT
CALÉO™
TD
