Vaillant Solar System and auroSTOR unvented solar..., Start-Up, Maintenance And Troubleshooting Manual

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69 Manual - Solar hot water systems 0020009607_02
Information Unit Value/Detail
Benchmark no.
Registration no.
Basic acceptances
Number of persons:
Additional hot water equipment: Washing machine, dish
washer etc.
Circulation Available/Not available
Circulation runtime h/d
(please tick as appropriate)
Daily hot water consumption in l/d
At a cylinder temperature of °C
Estimated solar coverage of the total hot water consumption %
Collector array performance data
Installed effective collector surface area m 2
Maximum power at full solar radiation kW (500–600 W/m 2
collector)
Solar cylinder
Appliance type Vented/Unvented
Appliance designation
Capacity l
Serial number
Boiler
Appliance type
Appliance designation
Serial number
Boiler system type Open/Closed
Installation location of pressure limiting valve
System values
Hot water temperature at the nearest tap °C
Achievable maximum cylinder temperature °C
Maximum hot water temperature °C
Maximum hot water volume at maximum temperature l/min.
Boiler flow temperature °C
Operating pressure setting at pressure limiting valve bar
Charge pressure in DHW expansion vessel (check before filling) bar
Charge pressure in solar expansion vessel (check before filling) bar
Cold water system pressure at pressure limiting valve (cold) bar
Set flow rate l/min
Temperature difference between flow and return at full solar radiation Kelvin
Volume of solar expansion vessel l
Operating pressure at solar pump unit pressure gauge in cold condition bar
Frost protection set to Density of solar fluid
> 1.05 g/cm3
Table 11.2 Start-up data
Start-up protocol 11