SR881 operation instruction of solar pump station
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1.5.11 Wire terminal of controller
1.5.12 EPP insulation case
Material:
Fitting: Brass
Seals: PTFE
Insulation: EPP, λ= 0.041W/ (m.K)
Maximum permitted operation pressure: 6Bar
Maximum permitted operation temperature:120
o
C
2. Mounting station
Determine the mounting site of the station.
Take the station out of packing; remove the front
half of the insulation.
Hold the enclosed wall mounting bracket against
the wall and mark the fastening holes, drill holes and insert dowels.
Fasten the wall mounting bracket to the wall with the screws.
Push the station against the wall mounting bracket, the station catches and is then
attached to the wall.
Connect the station to the solar thermal system.
Check the inlet pressure of the expansion vessel and if necessary, adjust it to the local
conditions, P
inlet
(bar) = 1bar+∆ Th(m)*1/10 (∆Th=height difference between collector
and station).
Connect the electrical components of the solar station, Attach the store and collector
sensor and connect them to the controller, plug the controller into the socket.
Tighten all nuts and screw connections.
Attach the front half of the insulation to the station.
3. Commissioning of station
Attention: Risk of scalding!
In order to prevent the boiling of solar fluid in the collectors, the system should not be
flushed or filled during periods of strong sunshine.
Attention: Risk of frost!
Solar thermal system cannot be completely emptied after flushing. There is a danger of frost
damage if water is used for flushing. Only use solar fluid to flush and fill the solar thermal
system. Use water –propylene glycol mixture as solar fluid (Maximum 50% propylene