Installation Manual
27
Strainer Installation
Water piping
Connecting a Domestic Hot Water Pump and heating pump
● Use a strainer of 50 mesh (with a scale diameter of 0.4mm or less)
● Check the direction of the strainer in the inlet pipe of heat exchanger, and then fasten it (see figure).
● Wind a Teflon tape more than 15 times around the thread of a screw on the water pipe and fasten
the screw.
● Install the service port downwards (within 45 degrees of vertical plane)
● Check whether any leakage can be observed at the connections.
● Continually check and clean strainers as necessary.
● The water pipe should be at least the same size as the connection pipe of the product.
● When connecting a water pipe with a socket, apply fastening torque as specified in the table below.
(Applying more torque than specified may cause damage to the machine)
● Heat insulation materials must be applied to the pipe of inlet and outlet pipes to avoid condensation.
(Use PE heat insulating materials with a thickness of 20mm or higher)
Pipe diameter
Torque
mm
(N, m)
25A
155
● When fastening an inlet or outlet pipe, you must use 2 spanners.
Applying excessive force to the pipe not grabbing the hexagon shaped socket with a spanner may
cause damages to the product.
Hexagon
-shaped socket
Spanner
Inlet
Strainer
45°
(Front view)
(Side view)
<Hydro Unit>
T/B3
1 2 3 4
Domestic Hot Water Pump
Heating pump