6
ISOTHERM-IM-DE-W-UK-01-2021-Rev0 | Part no. 10019091
EN
ENGLISH
8 Installation and commissioning
!
DANGER
Electrical energy!
Risk of death from electric shock.
Work on parts carrying live voltage must be carried out
by qualified electricians only.
Disconnect the power supply of the system and secure
it to prevent it from being switched on again before
carrying out any installation, maintenance, cleaning or
repair work.
NOTICE
The installation and commissioning of
the ISOTHERM must be carried out only by trained per-
sonnel who have been authorized by the manufacturer.
!
!
CAUTION
When repairing the unit or replacing
parts, be sure to observe the specified installation posi-
tions and flow directions of the parts being replaced!
!
!
CAUTION
Material damage!
Pressure shocks may occur if the stop valve is opened
or closed quickly.
Always open and close the stop valves slowly and in a
controlled way.
!
!
WARNING
Hot water!
Risk of severe scalding.
Do not reach into the hot water when emptying the
ISOTHERM. Ensure that the ISOTHERM has cooled
down before carrying out maintenance, cleaning and
repair work.
8.1 Installation
The control station ISOTHERM is supplied ex-works for
mounting to the left of the heating circuit manifold with an
axis distance of 210 mm. If you want to mount it to the right
of the heating circuit manifold, all you have to do is re-plug
the thermometer (see Fig. 8-1).
Depending on space limitations and dimensions of the heat-
ing circuit manifold, it may be necessary to rotate the pump
in the axis of the screw connections. To do this, loosen
the two union nuts on the pump, rotate the pump into the
required position, and then tighten the screw connections
while holding both the pump and the screw connection ele-
ment in place.WW
Fig. 8-1
NOTICE
We recommend installing a strainer with
a mesh size of less than 0.8 mm upstream of the control
station. This must be checked at regular intervals and
cleaned if necessary.
The hydraulic connections are to be done according to
Fig. 8-2 and Fig. 8-3.
1. Fit the control station to the manifold with the 1" nuts and
associated seals.
2. Fit the temperature limiter to the supply collector pipe on
the manifold.
3. Connect the control station to the power supply.
During installation it must be ensured that:
• the cables from the pump and temperature limiter
are not damaged or kinked
• the sensor capillary tube is not damaged or kinked
• The cables must not be under tension.
4. Set the target supply temperature on the setting hand
wheel.
B
D
C
A
Supply pipe
Return pipe
Fig. 8-2
B
D
C
A
Supply pipe
Return pipe
Fig. 8-3
Further information about electrical connection of the
control station can be found in the separate documen-
tation for the assemblies.
NOTICE
To ensure that the pump runs only when
heat is required, the manufacturer recommends con-
necting the pump to a pump relay (e.g. the pump logic
of an electrical control distributor that also controls the
actuators). Alternatively, the pump can be operated with
a timer switch.
