Commissioning
Filling the heating system
19
7
Commissioning
7.1
Filling the heating system
Monitoring the screw joints
Due to vibration and thermal expansion, all screw
joints must be inspected and tightened prior to
commissioning.
Permissible media
•
Heating water according to ÖNORM H 5195-1.
The permissible water hardness for the heating
water can be determined from the table in Section
.
The requirements of ÖNORM H 5195-1 apply
as minimum requirements for the heating
water. If stricter country-specific regulations exist,
they are to be heeded.
•
Water/glycol mixtures with a glycol ratio of
minimum 20% and maximum of 30%
Glycol has a higher viscosity than water.
When admixing glycol, the pumping data
must be corrected according to the mixing ratio.
Proper use includes compliance with these instruc-
tions as well as the information and labelling on the
pump.
Filling and bleeding the heating system
Fill the heating system and take note of the maximum
water pressure. Carefully bleed the heating system
after filling.
Bleeding before commissioning
There is a bleed screw on the top of the module for
bleeding the primary side.
Fig. 7-1: Bleed screw
Bleeding the pump
The heating system must be filled and bled
before the pump can be bled. The pump automat-
ically bleeds itself when starting for the first time. If it
does not, carry out the following steps.
1. If the pump is not in operation, start it manually. To
do this, carry out the following intermediate steps:
a) Up to software version X.35.X
Raise the authorisation to [Service]. Switch to
the inputs and outputs menu in the function
block of the heating circuit [I/O menu]
.
Select the heating circuit pump and press the
[Terminal] button. In the open window, switch
on the output manually by pressing the [On]
button.
b) Software version X.36.0 and later
Raise the authorisation to [Service]. Switch to
the inputs and outputs menu in the function
block of the heating circuit
. Tap on the
symbol on the heating circuit pump. The pump
is turned on manually with the [On] button, and
turned off by pressing the [Off] button.
2. If the pump is in operation, press the control button
on the pump for 3 seconds.
Fig. 7-2: Venting
3. The venting function now starts and lasts for 10
minutes. The upper and lower LED rows flash
alternately every second.
To cancel, press the control button again for 3
seconds.
After venting, the LED display shows the
operating mode of the pump that was previously
set. After bleeding, the operating mode of the pump
may need to be adjusted.
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