Pipe Installation - OSO HOTWATER Maxi Series Safety Information, O&M Information, Installation Manual, Technical Data Sheet

3.5 Pipe installation

The product is designed to be permanently con-
nected to the mains water supply. Approved pipes
of the correct size should be used for installation.
The relevant standards and regulations must be
followed.
No. Dimension
1 3/4" internal thread. Ventilation / hot water (plugged)
2 1½" internal thread.
3 3/4" internal thread. Thermometer
4 3/4" internal thread. Hot water circulation
5 3/4" internal thread. Thermostat/sensor
6 1½" internal thread.
7 3/4" internal thread. Draining/safety valve
3.5.1 Incoming water pressure
The efficiency of the product depends on the in-
coming 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 connec-
tions shown, and affix with suitable sealant.
Unused connections must be plugged secure-
ly.
B) The product can connected in series for in-
creased capacity in the system. Use OSO pre-
fabricated SRS joints
tion.
3.5.3 Fitting of overflow pipe
Overflow pipe (9) > 18 mm inside run to the
safety valve;
• Connects to the overflow (8) on the safety
valve (3/4"inside thread).
• Clear, undamaged and frost-free with a
fall to the drain.
8
Connection description
Hot water out
Cold water in
pipes. See illustra-
1
2
3
4
5
6
7
8
9
9