Specifications

COMMISSIONING
53
16. Determine the correct amount of water to be added to or closed circuit fluid to be drained from the heat
exchanger if the dynamic level is either below the text marking “MINIMUM FLUID LEVEL WITH PUMP
OPERATING” or more than 150 mm above this mark.
Each 100 mm of fluid level height is equivalent to 730 ml (0.73 litres) of closed circuit fluid.
50 mm
0.37 litres
250 mm
1.83 litres
450 mm
3.29 litres
100 mm
0.73 litres
300 mm
2.19 litres
500 mm
3.65 litres
150 mm
1.10 litres
350 mm
2.56 litres
550 mm
4.02 litres
200 mm
1.46 litres
400 mm
2.92 litres
600 mm
4.38 litres
 Mark the required closed circuit fluid level to be obtained on the side of the solar storage tank with a
non permanent marker beside the clear hose, in relation to the static level marked on the side of the
solar storage tank during step 7.
It is preferred to obtain a closed circuit fluid dynamic level close to and above or level with the
“MINIMUM FLUID LEVEL WITH PUMP OPERATING” text marking on the side of the solar storage
tank.
E.g.: If the dynamic level is 70 mm below the text marking, then place a mark 70 mm above the
static level marked on the side of the solar storage tank in step 7. It would be necessary to add just
over half a litre (510 ml) of water to the heat exchanger.
E.g.: If the dynamic level is 180 mm above the text marking, then place a mark at least 30 mm, but
no more than 180 mm, below the static level marked on the side of the solar storage tank. It would
be necessary to drain between 220 ml and 1300 ml of closed circuit fluid from the heat exchanger.
If the dynamic fluid level is greater than
150 mm above the text marking, then
place a mark below the static level marked
on the tank of between equal to this
distance and this distance plus 150 mm.
If the dynamic fluid level is below the text
marking, then place a mark equal to this distance
above the static level marked on the tank
„X mm‟
below text
marking
static level marked on tank during step 7
mark
„X mm‟
above
static mark
mark static level to achieve
mark between
„Y mm‟ and
„Y + 150 mm‟
below static mark
mark static level to achieve
MINIMUM FLUID LEVEL WITH PUMP OPERATING
„Y mm‟ greater
than 150 mm
above text
marking
150 mm
above text
marking