Determining The Solar Circuit Pump Curve; Recording The Set Value For The Pre-Charge Pressure Of The Diaphragm Expansion Vessel In The Solar Circuit - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Entering the absorber area
Tap the following buttons:
1. "Menu" or " "
2. "Service"
3. Enter the password "viservice".
4. "Service functions"
5. "Absorber area"

Determining the solar circuit pump curve

Only in conjunction with solar control module, type
SM1.
The solar circuit must have a device for displaying the
flow rate.
Tap the following buttons:
01. "Menu" or " "
02. "Service"
03. Enter the password "viservice".
04. "Service functions"
05. "Solar circuit pump calibration"
06. Confirm the note with "OK" or "
If the absorber area of the collectors has not yet
been entered, an input template appears.
Recording the set value for the pre-charge pressure of the diaphragm
expansion vessel in the solar circuit
The pre-charge pressure of the diaphragm expansion
vessel in the solar circuit required for the system con-
ditions can be recorded for subsequent maintenance.
Tap the following buttons:
1. "Menu" or " "
2. "Service"
3. Enter the password "viservice".
4. "Service functions"
40
(cont.)
6. Tap the "Viessmann collector" with the installed
absorber area.
7. If Viessmann collectors are not being used, tap
"Other collector".
Enter absorber area and confirm with "OK" or "
8. Select the number of collectors.
9. Confirm with "OK" or "
The data is saved.
07. Enter absorber area and confirm with "OK" or
"
The speed of the solar circuit pump is run up to
75 % within 10 s.
08. Determine the solar circuit flow rate.
09. Enter the determined flow rate in l/min.
The pump curve is defined and displayed in the
diagram.
10. Confirm with "OK" or "
The data is saved.
".
5. "Pre-charge pressure, diaphragm expansion
vessel"
6. Enter the determined set pre-charge pressure in
bar.
7. "OK" or "
Note
The recorded value can be called up under "Diagno-
sis" in the "Solar" menu.
".
".
".
" to confirm
".