CIAT POWERCIAT2 LX, Instruction Manual

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E N
EN - 15 NA13.47 B
8. INSTALLATION
8.1 Warning for the installer
The hydraulic circuits must be protected against the risk of
freezing by installing heating elements or using a special
energy transfer fluid (see § "Frost protection"). If antifreeze
is not added to the circuits and the unit is not operated
during periods of freezing weather, drain the evaporator
and the outside pipes.
If the area is not secure, install an anti-break-in system with
risk warnings including burns, injury, etc.
In order to meet the operating conditions (flow rates,
pressure drops), a sizing calculation must be performed.
The diameter of the pipes may therefore be different to that
specified on the exchanger.
8.2 Selecting a location
The unit must be installed outdoors, in a well-ventilated
area away from an ATEX area.
Remember that certain components may be damaged by a
corrosive atmosphere.
Keep members of the public and animals away from the
installation.
The ground or surface on which the unit is placed must be
strong enough to support the weight of the unit.
The selected location must not be liable to flooding.
Position the unit above the average snow depth in the
region where the unit is installed.
The unit must be perfectly level.
The area where the unit will be located must be completely
accessible so that maintenance, service and cleaning
operations can be carried out with ease.
Nothing should obstruct the free flow of air over the air-
cooled condenser (intake and discharge).
The unit should not cause a noise disturbance to the
surrounding area.
8.3 Water quality
IMPORTANT : install a screen filter on the water inlet (800 to
1200
P
depending on the size of the particles suspended in
the circulating fluid), as close as possible to the exchanger
and easily accessible for the purposes of disassembly and
cleaning.
The use of untreated or inadequately treated water may
result in scaling, deposits of algae, micro-organisms or
sludge or may lead to corrosion or erosion in the hydraulic
circuit. A water analysis with specialist interpretation must
be carried out to determine compatibility with the various
materials in contact and prevent the formation of electrolytic
couples.
CIAT shall not be held liable for corrosion and erosion
damage resulting from the use of untreated or incorrectly
treated water, or of saline, brackish or poorly filtered water.
Comply with the antipollution standards in force if connecting
to a drinking water system.
8.4 Sound level
Our units are designed to operate at moderate sound levels
(for this type of equipment). However, when designing the
installation you must take into account airborne and solid-
borne noise transmission (vibrations).
To limit solid-borne noise as much as possible, all of the
unit's interfaces must be insulated by placing sleeves on
the air ducts, flexible couplings on the hydraulic pipes and
anti-vibration mounts between the support and the base
frame (see § LOCATION).
8.5 Frost protection
Frost protection (option) comprises heating elements which
must be located on some of the unit's components in order
to prevent freezing in the hydraulic circuit.
With the "frost protection" option, the electrical cabinet must
be constantly powered on. All precautions must be taken to
prevent accidental power outages.
The external pipes must be protected from frost.
If the unit is supplied without the frost protection option
and there is a risk of freezing, drain the entire circuit or
use a special energy transfer fluid (water/glycol mix).
Using a glycol/water mix
If you use a concentrated dilutable solution to protect your
hydraulic circuit, please follow the instructions below:
- Always dilute the antifreeze with water before adding it
to the system. Never add them separately;
- Always mix the correct amounts of water, antifreeze and
corrosion inhibitor in a container before adding them to
the system.
Procedure
1. Always rinse and flush the system completely to remove
any remaining water.
2. Follow up the final rinse with a complete drain of the
system.
3. Add the water/antifreeze/corrosion inhibitor and
pressurise with the hydraulic pump. We recommend
_ ` { | {{? $
will ensure compliance with water protection standard NF
EN1717. Never connect the unit to the municipal water system
if the additives used in the hydraulic circuit have not been
approved by the Ministry for Health (examples of approved
monopropylene glycol (MPG) products: NEUTRAGEL SANIT
or HELIOGEL CS 80).
4. Drain the system thoroughly.
5. Allow the mixture to run through the entire system for at least 2
hours before starting the unit.
6. }_|` QQ
obtained.
7. Use litmus paper or a pH meter to check the pH obtained.
8. ~`€ { €
-that the system contains antifreeze,
-the name of the product and its supplier,
-the proportion and the pH at commissioning.
Always top up with the same type of mix initially used.
The table and the curves below indicate the minimum percentages
of glycol with which the system must be provided depending on the
freezing point.