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INSTALLATION
CHOICE OF INSTALLATION SITE
Before installing the unit, agree with the customer the site
where it will be installed, taking the following points into consid-
eration:
- check that the support surface is adequate to support the
weight of the unit;
- respect safety distances between the unit and other equip-
ment or structures.
- The unit must be installed in a space designed to house tech-
nical installations dimensioned according to legislation in
force in the country concerned and large enough to allow
access for maintenance.
- Follow the instructions shown in the chapter on DIMENSION-
AL DRAWINGS to allow room for maintenance operations.
If installing multiple units the clearances must be doubled.
WATER CONNECTIONS
The choice and installation of components is the responsibil-
ity of the installer who should follow good working practice
and current legislation.
Construction of a bypass is recommended to enable the
pipes to be washed through without having to disconnect
the unit (see drain valves).
The connection piping should be supported in such a way
as to avoid it weighing on the unit.
The following components should be installed in the evapo-
rator water circuit:
1. Two pressure gauges with a suitable scale (intake and
outlet);
2. Two vibration damper joints (intake and outlet).
3. Two shut off valves (normal in intake and calibrating in
outlet).
4. Two flow switches (inlet) on both circuits, in the sys-
tem and source sections. Both flow switches must
be calibrated by the installer to a value equal to 70%
of rated flow (obligatory).
5. Two thermometers (intake and outlet).
6. An intake filter must be installed as close as possi-
ble to the evaporator and positioned to allow easy
access for routine maintenance.
7. All the pipes must be insulated with suitable material to
prevent the formation of condensate and heat loss.
The insulating material must be a vapour barrier.
Make sure that the control and shut off devices protrude
from the insulation.
8. At the lowest points in the system, install drain valves for
easy emptying.
9. At the highest points in the system, install automatic or
manual air vent valves.
10. The unit is fitted as standard with an expansion vessel;
make sure this is correctly sized for the water content of
the system and the expected operating temperature, oth-
erwise install an additional expansion vessel.
POSITIONING
Before handling the unit, check the capacity of the lift equip-
ment used, respecting the instructions on the packaging.
To move the unit horizontally, make appropriate use of a lift
truck or similar, bearing in mind the weight distribution of the
unit.
To lift the unit, insert tubes long enough to allow positioning of
the lifting slings and safety pins in the special holes in the base
of the unit.
To avoid the slings damaging the unit, place protection between
the slings and the unit.
The unit should be installed on special vibration dampers.
See the chapter on DIMENSIONAL DRAWINGS for the support
positions identified by W1, W2 etc. and the corresponding
weights for the correct sizing of the vibration dampers.
Fix the unit, making sure it is level and that there is easy
access to water and electrical components.
Failure to install the flow switches will mean the heat
exchangers are not protected in the event of no flow of liq-
uid.
Climaveneta cannot be held liable for any damage to the
unit and/or the system following the failure to install these
devices or the filter.
The correct operation of the components that help ensure
the safety of the appliance and the system should be
checked regularly.
Specifically, this involves cleaning the filters and checking
the operation of the flow switches installed.
Make sure that the frost protection heaters on the heat
exchanger are powered when the unit is off (unit in standby
"StbY").
Water flow to the chiller unit must conform to the values
shown in the section on "General Technical Data".
The flow of water must be maintained constant during oper-
ation.
The water content of the unit must be such as to avoid dis-
turbing operation of the refrigerant circuits.
Install any pressure regulating valves or solenoid valves on
the external water outlet piping
If the unit is used with water temperatures below +4.5°C, the
risk of the unit freezing must be prevented by using the
required percentage of antifreeze (see "Water circuit data").
Non-freezing solutions must also be used at ambient tem-
peratures around 0°C.
It is recommended to use non-toxic food grade antifreeze,
compliant with the standards in force in the countries where
the unit is used, if domestic hot water production is also fea-
tured.
GB 03/2010 WWR MTD - BWR MTD
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