Installation manual
3
EWWD120~540MBYNN
Packaged water-cooled water chillers
4PW22684-1A
U
NPACKING
AND
PLACING
THE
UNIT
1
Remove the wooden beams from the unit.
2
Install vibration mountings in case of an installation where noise
and vibration might be an impediment.
3
Set the unit on a solid and level foundation.
The unit should be installed on a solid base. It is recommended
to fix the unit on a concrete base with anchor bolts.
•
Fix anchor bolts into the concrete foundation. When finally fixing
the unit by means of these anchor bolts, make sure that the
washers for channel DIN434, and both field supplied rubber
plates and field supplied raw cork or rubber sheets for better
vibration protection, are installed as indicated.
•
The concrete foundation should approximately be 100 mm higher
than the floor level for ease of plumbing work and better drain.
•
Make certain that the foundation surface is even and flat.
P
REPARING
,
CHECKING
AND
CONNECTING
THE
WATER
CIRCUIT
The units are equipped with a water inlet and water outlet for connec-
tion to a chilled water circuit. This circuit must be provided by a
licensed technician and must comply with all relevant European and
national regulations.
1
Preparing the unit for connection to the water circuit
A box containing
couplings and a filter is delivered
with the unit.
As not to damage the parts of the units during transport, the water
inlet pipe with the flowswitch and the water inlet temperature sensor
and the water outlet pipe with the outlet water temperature sensor,
are not factory mounted.
■
Connecting the water inlet pipe containing the flowswitch and
inlet water temperature sensor: (not for EWWD120)
The water inlet pipe containing the flowswitch and inlet water
temperature sensor is mounted on the side of the water inlet of
the evaporator(s) and is pre-insulated.
Cut the tie wraps and fix the pipe with the supplied
couplings to the evaporator inlet(s).
■
Connecting the water outlet pipe containing the outlet water tem-
perature sensor: (not for EWWD120)
The water outlet pipe containing the outlet water temperature
sensor is mounted on the side of the water outlet of the evapora-
tor and is pre-insulated.
Cut the tie wraps and fix the pipe(s) with the supplied
couplings to the evaporator outlet(s).
■
After installation of the water inlet
and outlet pipes and as a general
rule for other units, it is recom-
mended to check the insertion depth
of the water temperature sensors into
the connection pipes prior to operation (see figure).
1
Anchor bolt
2
Washer
3
Rubber plate
4
Row cork or rubber sheet
5
Ground
6
Concrete floor
7
Ditch
Anchor bolt
Model
A
Size
Qty
180
300
M20x200
4
280
350
M20x200
4
EWWD360~540
350
M20x270
4
NOTE
■
The measurement tabulated is based on the fact
the base is made in the ground or on a concrete
floor. In case the base is made on a rigid floor, it is
possible to include thickness of concrete floor in
that of the base.
■
In case a base is made on concrete floor, make
sure to provide a ditch as shown. It is important to
extract drainage regardless of whether a base is
made in the ground or on the concrete floor (ditch-
sewerage).
■
Ingredient ratio of the concrete is: cement 1, sand
2 and gravel 3. Insert iron bars of Ø10 at every
interval of 300 mm. The edge of the concrete
base should be planed.
>200
>A
100
>100
50
>930
1
2
3+4
5
6
7
1855
>930
808
>2371
If air or dirt gets in the water circuit, problems may occur.
Therefore, always take into account the following when
connecting the water circuit:
1.
Use clean pipes only.
2.
Hold the pipe end downwards when removing burrs.
3.
Cover the pipe end when inserting it through a wall so that
no dust and dirt enter
1
Water inlet of the evaporator
2
Flowswitch
3
Inlet water sensor
4
Water inlet pipe containing the flowswitch and the water inlet
temperature sensor
5
coupling
6
Counter pipe
7
Field water piping circuit
8
Filter
9
Filter end cap
Victaulic
®
1
5
6
7
8
4
3
2
9
5
5
5
Victaulic
®
Victaulic
®
Victaulic
®
≤
50 mm