8
The control unit is pre-assembled and leak tested at
works.
The control unit is supplied for left hand side con-
nection.
For right hand side connection, turn the complete con-
trol unit vertically. Now turn pump in such a way that
the motor is pointing forward. Loosen collar nuts at
the pump. Turn pump by 180° and re-tighten collar
nuts firmly.
Screw control unit firmly onto the stainless steel dis-
tributor/collector. When installing the distributors/col-
lectors with 2 and 3 heating circuit connections, mount
the bracket supplied with the control unit as additional
bracket (see illustr. 5.1 and part 5, illustr. 6.1).
When mounting the control unit inside a cabinet,
please observe paragraph 4.2 “Dimensions/connection
size”.
To mount the angle pattern adapter, remove the pro-
tection caps of the three-way valve.
Screw the angle pattern adapter onto the three-way
valve. The threaded connection of the adapter should
point forward.
Install the components of the flow temperature regu-
lating set (see illustr. 5.2 and paragraph 8 “Accesso-
ries”) according to the installation instructions.
The power supply must be switched off before
work commences.
!
Observe warning advice under paragraph 2
(safety notes)!
– Do not use any lubricant or oil when installing
the valve as these may destroy the seals. If ne-
cessary, all dirt particles and lubricant or oil re-
sidues must be removed from the pipework by
flushing the latter.
– When choosing the operating fluid, the latest
technical development has to be considered (e.g.
VDI 2035).
– Please protect against external forces (e.g. im-
pacts, vibrations etc.).
After installation, check all installation points for le-
aks.
7 Operation
7.1 Bleeding the system
Before initial operation, the system must be filled and
bled with due consideration of the permissible opera-
ting pressures.
7.2 Correction factors for mixtures of water and
glycol
The correction factors of the manufacturers of the an-
tifreeze liquids have to be considered when setting
the flow rate.
8 Accessories
– 115 20 20 Flow temperature regulating set (see il-
lustr. 5.2)
The flow temperature regulating set for outside tem-
perature guided heating and cooling via the corres-
ponding surface heating/cooling systems allows au-
tomatic switching from heating to cooling according
to requirements.
The system components of the flow temperature
regulating set are also available separately.
The Oventrop ball valves:
– 140 63 83 DN 20 G
3
⁄
4
F x G1 M
– 140 63 84 DN 25 G1 F x G1 M
can be screwed onto the control unit for the isolation
of the supply and the return pipe.
The accessories can be found in the catalogue.
9 Maintenace
The control unit is maintenance-free.
10 Warranty
Oventrops warranty conditions valid at the time of
supply are applicable.
DANGER
!
CAUTION
!
Illustr. 6.2 Flow direction
Flow distributor
Return collector
Sup-
ply
Re-
turn
