8
No.
Dimension
Connection description
1 3/4” internal thread. Ventilation / hot water (plugged)
2 1½” internal thread. Hot water out
3 3/4” internal thread. PT valve
4 3/4” internal thread. Hot water circulation / thermom.
5 3/4” internal thread. Thermometer/sensor
6 1½” internal thread. Cold water in
7 3/4” internal thread. Draining/safety valve
3.5 Pipe installation
3.5.1 Incoming water pressure
The efficiency of the product depends on the
incoming cold water pressure. The water pressure
should be min. 2 bar and max. 6 bar throughout
the day. Excessive water pressure can be adjusted
by installing a pressure reduction valve.
3.5.2 Fitting pipes
A) Run a pipe of suitable size to the connections
shown, and affix with suitable sealant. Unused
connections must be plugged securely.
B) The product can connected in series for in-
creased capacity in the system. Use OSO pre-
fabricated SRS manifolds. See illustration.
3.5.3 Fitting of overflow pipe
Overflow pipe (9) > 18 mm inside run to PT
safety valve;
•
Connects to the overflow (8) on the PT
safety valve (3/4”inside thread).
•
Clear, undamaged and frost-free with a fall
to the drain.
The product is designed to be permanently
connected to the mains water supply. Approved
pipes of the correct size should be used for
installation. The relevant standards and regulations
must be followed.
2
3
4
5
7
6
1
9
9
8
