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Figure 8. Typical piping of a brazed plate evaporator, series CLIM Tandem
It is recommended that the field-installed water piping for the
chiller include:
• Temperature
sensors
at
connections.
• Water pressure gauge connection taps and pressure gauges
on evaporator inlet and outlet connections to measure water
pressure drop.
• Shut-off valves to isolate the unit from piping during unit
maintenance.
• Minimum bends and elevation changes to minimize pressure
drop.
• Vibration eliminators on supply and return water lines to
reduce transmissions to the building.
• Thorough flushing of system water piping prior to making
connections to the unit evaporator.
• Insulation of the piping, including a vapor barrier, helps
prevent condensation and reduces heat loss.
• Periodic water analysis and chemical treatment of the
evaporator loop water is recommended immediately after unit
start-up.
NOTES: Failure to comply with these measures may result in
performance and reliability problems.
INLET STRAINER GUIDELINES
An inlet water filter kit must be installed in the cold water piping
upstream of the evaporator inlet. There are several ways available
to meet this requirement:
iom-clim-cf-eng
evaporator
inlet
and
outlet
Installation and Application Information
1. Factory installed option available - models 7.5 through 62.5
2. A field installation kit shipped loose with the unit is available
for all unit sizes and consists of:
3. Y-type area strainer with 304 stainless steel perforated bas-
ket, slotted pipe connections and strainer cover [a strainer
with perforations as indicated below depending on model].
4. A field supplied strainer meeting the specifications and insta-
llation requirements of this manual.
TECHNICAL DATA OF THE STRAINER
Head and neck nut: Brass
Filter element: Polyamide body coated with nylon mesh nylon
mesh
Filter vessel: Trogamid T 5000 (practically impact resistant,
pressure wave impact resistant, pressure wave resistant,
permanently transparent, stress resistant).
(Brass cup available on request).
Working pressure PN 16, test pressure 25 bar, maximum water
temperature 30° C. maximum water temperature 30° C, mesh
size 95-140 μm.
Available with and without Rp 1⁄8⁄8 pressure gauges.
Table 2.
Flow rates according to DVGW test
DN 20
Rp 3⁄4
DN 35
Rp 1
DN 32
Rp 11⁄4
DN 40
Rp 11⁄2
DN 50
Rp 2
10
5,0 m3/h
Δp = 0,2 bar:
7,9 m3/h
12,0 m3/h
11.9 m3/h
14,9 m3/h
www.clima-flex.com
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