Checking the primary pump
1.
Start the test program:
Menu item
&
"
Device settings
"
&
"
Contractor level
"
&
"
Commissioning
"
&
"
Primary pump
"
Note
The time elapsed since the start of
the test program is shown in the top
r.h. corner of the display. Further-
more, the status of all components
that are part of the test procedure
is displayed.
2.
Check the circulation on the pri-
mary side (brine circuit):
&
The primary inlet (display "
Pri-
mary in
") and outlet (no display,
use contact thermometer) must
show identical, low temperatures.
&
The pump casing of the primary
cooling circuit pump must not
heat up (check by touching the
casing).
Otherwise:
&
Vent the primary circuit
&
Check the pump connections
&
Change the pump stage
&
If required, use a larger pump
3.
Start the compressor by pressing
"
ON
".
Note
The compressor will start automati-
cally after expiry of 250 s test.
4.
Determine the temperature differ-
ential
Δ
T between the primary inlet
(display "
Primary in
") and outlet
(no display, use contact thermo-
meter).
Set values
Δ
T:
&
3 to 5 K at 35 °C for "
Secondary
flow
" and 10 °C for "
Primary in
"
&
2 to 4 K at 35 °C for "
Secondary
flow
" and 0 °C for "
Primary in
"
5.
Record the results in the service
report from page 190.
If the set values are not achieved:
&
Vent the primary circuit
&
Check the pump connections
&
Change the pump stage
&
If required, use a larger pump
6.
Terminate the test program with
"
BACK
".
Further details regarding the individual steps
(cont.)
109
Commissioning, inspection, maintenance
55
92
968
GB
Service
Summary of Contents for VITOCAL 200-G
Page 8: ...Certificates Declaration of conformity 201 Keyword index 202 Index cont 8 Index 5592 968 GB ...
Page 122: ...Main menu Information Menu structure overview information 122 Control settings 5592 968 GB ...
Page 187: ...Parts lists cont 187 Parts lists 5592 968 GB Service ...
Page 188: ...Parts lists cont 188 Parts lists 5592 968 GB ...
Page 189: ...Parts lists cont 189 Parts lists 5592 968 GB Service ...
Page 206: ...206 5592 968 GB ...
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