Lochinvar PS1000 User Manual

■ Before commissioning,  all piping,  connections and saftey 
  equipment should be checked to ensure that they are 

 

 

 

    correctly installed.

■  All pre-fitted solar station screw connections are firmly 
   tightened in the factory so that they do not usually need 
    retightening.

■  Seal integrity must be tested when commissioning and a 
    pressure test must be completed.

■ Fill the complete solar system with Lochinvar/TiSUN solar 
   liquid only. The mixing ratio should be adapted to local 
    conditions.

■ Never flush or pressure test the complete solar system with 
    just water. Flushing the system with water only can cause a 
    freezing  hazard.

■  There is one fill valve with hose connection for filling, 
    flushing and draining the solar system on both the safety 
     group and sensor measurement section.

■  Connect the pressure hose (forward flow) to the safety 
   group’s filling connection under the pressure gauge and 
     open fill/flush valve. 

■  Connect the flushing hose (return) to the flushing 
   connection on the sensor measuring section and open 
      fill/flush valve. 

■  Refer to “Technology, installation and commissioning: 
   Operation, multi-function ball valve and check valve” on 
     page 6.

■ Open the supply ball valve (by turning the red thermometer 
    handle counter-clockwise until it stops).

■  Close return ball valve (by turning the blue thermometer 
    handle clockwise, until it stops).

■  If necessary, the supply and return check valve can be 
  opened by moving the thermometer handles to the 45° 
    position.

■ Put sufficient solar liquid in the tank of a filling and flushing 
   pump (not supplied). The mixing ratio  should be adapted 
    to local conditions in terms of freeze protection.

■ Fill the solar system via the filling and flushing pump and 
   then flush the solar circuit for at least 15 min. to purge all of 
   the air out of the circuit.

■  Close the fill/flush valve (return) with the filling and 
      flushing pump running and increase the system pressure to 
  60 psi. The system pressure can be read at the 
     pressure gauge.

■ Close the fill/flush valve (forward flow) and switch off the 
    filling and flushing pump.

■  Open return ball valve (by turning the blue thermometer 
    handle 90° counter-clockwise until it stops).

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

■ Only if collector bleeder is installed: Bleed the system on the 
    collector until the solar liquid exits free of bubbles.

■  If necessary, increase the test pressure again to 60 
   psi  and check the system for leaks. If the pressure gauge     
    shows the pressure dropping substantially, you have a leak   
    in the system.

■  Set the operating pressure to 60 psi as prescribed by the 
 system 

manufacturer 

■ Start up the circulation pump at maximum speed and allow 
    liquid to circulate for at least 15 min.

■ Remove the filling station hoses and screw the  caps on the 
    flushing and filling valves. 

■  Check the system again for leaks. Use the red and blue 
   thermometer handles to fully open the forward flow and 
    return ball valves. 

■  Activate speed control on solar control unit. The highest 
    speed level should be set on the pump (phase control).

Note: The minimum speed set on the solar control unit must 
 

  not fall below the pump’s minimum nominal speed. 

 

   Note instructions for pump and solar control unit.

■  Once the installation settings have been completed and 
     checked, fit the solar station’s front insulation shell. 

■ Refer to the collector manufacturer’s recommendations for 
    minimum flow requirements.

 

SL-PS Installation & Operation Manual