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Bosch AGS20-2 Manual

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Commissioning, inspection and maintenance reports | 21
6 720 811 270 (2015/04)AGS10-2, AGS10E-2, AGS20-2, AGS50-2
General information on the solar system
User: System location:
Collector type: Number of collectors:
Collector array alignment (e.g. south): Collector array angle of inclination:
Collector installation (vertical, horizontal): Installation set (e.g. on roof):
Solar pump station type: Static height to collectors:
Expansion vessel size (l): Expansion vessel pre-charge pressure (unloaded):
Pressure relief valve type: Pressure relief valve excess pressure:
Controller type: Number of consumers (cylinder, swimming pool, etc.):
Cylinder 1 type and capacity: Cylinder 1 coil capacity:
Cylinder 2 type and capacity: Cylinder 2 coil capacity:
Miscellaneous:
Table 15
Commissioning, inspection and maintenance tasks Page
Commission-
ning
Inspection/maintenance
1. 2. 3. 4.
Date:
Solar thermal system
1. Pipework (flow and return) installed and earthed? 8 – – – –
2. Pipework flushed and tightness test carried out? 13 – – – –
3. Air vent closed? 14 – – – –
4. Charge pressure of the expansion vessel checked? 11 ____ bar – – – –
5. Solar system verified to be free of air? 14 – – – –
6. pH level of heat transfer fluid checked? Replace heat transfer fluid if value is
≤ 7 (heat transfer fluid coloured brown, strong odour).
1)
–
7. Frost protection to _______ °C checked and analysed? 15 ___ °C ___ °C ___ °C ___ °C ___ °C
Frost protection ensured until ________ (month/year)
(check frost protection at least every two years!)
8. Thermostatic DHW mixing valve functioning correctly (if installed)?
Solar station
1. Measure operating pressure when system is cold and enter the result here.
System temperature on return thermometer?
14 ____ bar
____ °C
___ bar
___ °C
___ bar
___ °C
___ bar
___ °C
___ bar
___ °C
2. Flow rate checked when the system is cold and result entered here? 15 ___ l/min __ l/min __ l/min __ l/min __ l/min
3. Gravity brakes ready to operate (closed)?
4. System adequately ventilated using air separator and air vent on roof (if
installed)?
Table 16
… 21 …


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