Subsequent Installation Of Heat Meters; Accessories; Maintenance; General Conditions Of Sales And Delivery - oventrop Multidis SF Installation And Operating Instructions Manual

8 Subsequent installation of
heat meters
The return can subsequently be equipped with
commercial heat meters with flat sealing bodies:
– Length 110 mm and G
– Length 130 mm and G 1 male thread
Before installation, the differential pressure regulator
in front and the ball valve behind the meter stool piece
are closed.
NOTICE
The plastic meter stool pieces are spacers
and not suitable for constant operation. The
meter stool pieces must only be removed if
the system is depressurised!
Loosen the couplings.
The sealing surfaces should be cleaned and the flat
seals should be replaced when re-assembling.
A heat meter body with a length of 130 mm and G 1
male thread is installed directly between the couplings.
When installing a heat meter body with a length of
110 mm and G ¾ male thread, the reducers have to
be screwed onto the body first. Then the body is
mounted between the couplings.
The heat meter body and the collar nut of the coupling
are to be lead locked.
Open the ball valve. Restore the nominal value setting
of the differential pressure regulator "Hycocon DTZ".
Bleed the heating system and carry out a leakage test
before commissioning.
Due to the heat meter, the pressure loss within the
system is increased. This must be taken into
consideration during pump design.
For further information please refer to the technical
data sheets "Multidis SH Stainless steel distributors/
collectors for radiator connection", "Multidis SF
Stainless steel distributors/collectors for surface heating
and cooling systems" and "Hycocon DTZ Differential
pressure regulators".
12
⁄ male thread
3
4

9 Accessories

Oventrop offers the following measuring systems for
presetting and regulation of the flow rate:
– Oventrop "OV-DMC 2"- Measuring system
– Oventrop "OV-DMC 3"- Measuring system
– Oventrop "OV-DMPC"- Measuring system
The complete range of accessories can be found in
our catalogue "Products".

10 Maintenance

The heat meter connection set is maintenance-free.
Tightness and function of the heat meter connection
set and its connection points have to be checked
regularly during maintenance. The heat meter
connection set must be easily accessible.
11 General conditions of sales
and delivery
Oventrops general conditions of sales and delivery
valid at the time of supply are applicable.