2-Way solar pump unit with air vent and built-in controller. Up to 38 l/min.
The unit with 1” (180 mm) solar circulating pump, fully assembled and tested, consists of:

RETURN:
Flowmeter with flow regulation with filling and draining valves.
Synchronous solar high efficiency circulating pump.
Flanged 3-way ball valve with non return valve 10 mbar (which can be excluded by rotating the handle by 45°) supplied with in-handle thermometer (coded blue, range 0°C-120°C).
Security unit 6 bar with manometer ø50 mm 0-10 bar with 3/4” Male connection to the expansion vessel. End of drain side: 3/4” F.
SUPPLY:
Flanged ball valve with non return valve 10 mbar (which can be excluded by rotating the handle by 45°) supplied with in-handle thermometer (coded red, range 0°C-120°C).
Air vent provided with manual vent valve.
Pipe with end connection.
Solar controller ModvSol M pre-wired including 3 silicone sensors to control systems with 2 loops and 1 or 2 storage tanks. Controller power cable with Schuko plug. Power cable and PWM control cable for the circulating pump. As regards the technical features of the controller please see the dedicated section.
 

Centre distance 125 mm. EPP insulation box (Measurements: 308x434x169).
A special back plate fixes the unit to the insulation box and it allows a quick fitting to the wall or to the solar cylinder.
PN 10. Constant temperature 120°C; (short time temperature: 160°C for 20 s).
External connections: 22 mm compression, 3/4” Male or 1” Male.

Code 22 mm: 322D-xx-(YST7/YST8/US75)-M3S
Code 3/4” Male: 303D-xx-(YST7/YST8/US75)-M3S
Code 1” Male: 304D-xx-(YST7/YST8/US75)-M3S
Code composition: the suffix “xx” shows the flow, followed by the
circulating pump and by the controller model (f.i. 322D-28-YST7-M3S).