67
082809
9- 7/8’’
3- 7/8’’
14- 3/4’
’
10- 5/16’
’
Screw safety group (8) onto the ball valve.
Install discharging pipe from the pressure relief valve to the
floor or through exterior wall to 12” from ground level.
If there is no floor drain, a bucket may be placed under
discharge pipe.
Connect piping of 1/2” male pipe thread on the safety group
to an expansion tank.
Connect cable to the pump (diagram 2) and push control
retainer with the control onto the back insulation.
Now the front insulation can be slipped over the control
retainer and be pushed onto the back insulation until it clicks
into position.
Air test all pipework on solar closed loop. Flush solar installa-
tion thoroughly, then fill the system with Oventrop solar fluid.
Adjust the flow rate with the screw slot in the flow measuring
device.
Open vent with radiator vent key on deaerator to remove any
air separated from solar transfer fluid.
Make sure thermometers are left in their vertical position,
as valve handles must be left open. Check that the screw
slot on the supply side check valve is left in the horizontal
position.
Thermometers in solar collection
mode (displayed on the controller)
will indicate a temperature rise on the
return side of an average of 10 - 25
o
F.
This temperature rise indicates that the
collectors are collecting and transferring
solar energy.
Connection to collector(s)
Return from Supply to
Thermometer
Circulator
Pressure
gauge
Pressure
relief valve
Expansion tank
connection
Flow meter
Deaerator
Mounting
bracket
Mounting
bracket
Direction
of flow
Thermometer
Connection
Connection
supply to tank return from tank
Diagram 1
Check valve
slot in horizontal position
Supply
Return
Collectors
Typical flow rates are set to
3/4 to 1 gpm per collector*
*16 tube model collector
Flow restrictor
screw slot
