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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.
1
2
3+4
>930
100
5
6
1
Anchor bolt
2
Washer
3
Rubber plate
4
Row cork or rubber sheet
5
Ground
6
Concrete floor
7
Ditch
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.
Model
EWLD120+170
300
EWLD240+260
350
EWLD340~540
350
Make sure that the foundation surface is even and flat.
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.
Installation manual
3
7
1855
>2371
Anchor bolt
A
Size
M20x200
M20x200
M20x270
C
ONNECTING THE REFRIGERANT CIRCUIT
The units are equipped with a refrigerant inlet (discharge
side) and a
connection to a remote condenser. This circuit must be
provided by a licensed technician and must comply with all
relevant European and national regulations.
Precautions when handling piping
If air, moisture or dust gets in the refrigerant circuit, problems may
occur. Therefore, always take into account the following when
connecting the refrigerant piping:
1.
Use clean and dry 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.
Connecting the refrigerant circuit
The discharge and liquid line must be welded directly to the remote
condenser piping. For use of the correct pipe diameter see table
below:
Model
EWLD120
EWLD170
EWLD240
EWLD260
EWLD340
EWLD400
EWLD480
EWLD500
EWLD540
Qty
Make sure the pipes are filled with N
4
order to protect the pipes against soot.
4
There should be no blockage (stopvalve, solenoid valve)
4
between the remote condenser and the provided liquid
injection of the compressor.
Leak test and vacuum drying
The units were checked for leaks by the manufacturer.
After connection of the piping, a leak test must be performed and the
air in the refrigerant piping must be evacuated to a value of 4 mbars
absolute by means of a vacuum pump.
Do not purge the air with refrigerants. Use a vacuum pump
to vacuum the installation.
refrigerant outlet (liquid side) for the
connection (inch)
discharge
2"1/8
2"1/8
2"1/8
2"5/8
2x 2"1/8
2x 1"1/8
2x 2"1/8
1"1/8+1"3/8
2x 2"1/8
2x 1"3/8
2"1/8+2"5/8
2x 1"3/8
2x 2"5/8
2x 1"3/8
during welding in
2
EWLD120~540MBYNN
Condenserless water-cooled water chillers
liquid
7/8"
1"1/8
1"3/8
1"3/8
4PW22686-1
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