Lochinvar SPS0250 User Manual

De-energize and lock the solar control 
and pump to prevent them from 
accidentally being switched back on 
again by mistake before any maintenance 
or repair work.

Service is not permitted until components 
and solar liquid have cooled.

 WARNING

■ The solar station features an air separator. Open bleeder 
    valve until the solar liquid exits free of air bubbles.

■ Check system pressure and top off solar liquid if required.

■ The screw connections may have to be retightened as the 
  seals settle. Note tightening torque requirements in the 
  “Technology: installation and commissioning” section of 
   this manual.

■   Use an open-ended wrench to retighten clamp ring screw 
    connections if required (approx. 33 Ft lb). 

■ When tightening the clamp ring screw connection, use two 
    wrenches–one wrench to prevent the pumping station from 
   turning. 

(Wall bracket, for repairs and service only)

■ Use a screwdriver or similar tool to remove the retaining 
    springs to the front.

 CAUTION

The solar station is now loose. Ensure 
that it does not slide forward and out 
of the wall bracket.

■    Fit corresponding drainage hoses on to the filling and 
 

flushing connections and guide these into a collecting 

 vessel.

■  Open the check valves by placing the red and blue 
 

thermometer handles in their 45° position. 

■ Open the fill/flush valve (return) under the pump.

■   Open the fill/flush vlave (forward flow) on the safety group.

■  Optional: Open the fill/flush valve at lowest point of 
 

system, as close to the tank connection as possible.

■  Open bleeder equipment at highest point (above 
 collectors).

 

SL-PS Installation & Operation Manual