40
Installation and maintenance instructions EASICOM 3 0020239562_04
#
Maintenance work
Interval
28
Checking the pre-charge pressure of the expansion vessel
at regular intervals
29
Check the water flow rate (domestic hot water). Insufficient water flow
rate
→
Check the incoming water supply. Incoming water supply sufficient,
water flow rate too low
→
Clean or replace the strainer in the cold water
inlet
Annually
30
Check the impeller sensor for dirt/damage and, if required, replace it
Annually
31
Reassemble the product
After each time maintenance
work is carried out
32
Open the service valves, carry out the required leak-tightness test
Annually
33
Fill the product/heating installation to the filling pressure specified for the
system
Annually
34
Connect the product to the electrical installation
Annually
35
Run the test operation on the product/heating installation including
domestic hot water generation (if available) and, if required, purge the
product/heating installation
Annually
36
Measure the CO content, CO
₂
content and the CO/CO
₂
ratio again
Annually
B
Check programmes
–
Overview
Note
Since the programme table is used for various products, some programmes may not be visible for the product in
question.
Display
Meaning
P.01
Burner operation on adjustable heat input:
The product operates after ignition with the heat input set between "0" (0% = Pmin) and "100" (100% = Pmax).
The function is active for 15 minutes.
P.02
Burner operation at ignition load:
After ignition, the product works at ignition load.
The function is active for 15 minutes.
P.03
The product runs in heating mode with the maximum heat input set using diagnostics code d.00.
P.04
Chimney sweep function:
If there is a domestic hot water demand, the product runs in domestic hot water mode and at maximum heat
input.
If there is no domestic hot water demand, the product runs with the partial heat load that is set via diagnostics
code d.00 and in heating mode.
The function is active for 15 minutes.
P.05
Filling the product:
The prioritising diverter valve moves to the mid-position. The burner and pump switch off (to fill or drain the
product).
If the pressure is lower than 0.03 MPa (0.3 bar) and then is above 0.05 MPa (0.5 bar) for longer than 15
seconds, the automatic purging function is activated.
The function is active for 15 minutes.
P.06
Purging the heating circuit:
The prioritising diverter valve is moved to the heating position.
The function is activated in the heating circuit for 15 minutes.
The pump runs and stops at regular intervals.
If required, this function can be manually switched off.
P.07
Purging the domestic hot water circuit:
The function is activated in the small domestic hot water circuit for 4 minutes and then in the heating circuit for
1 minute.
The pump runs and stops at regular intervals.
If required, this function can be manually switched off.
Automatic air vent
function
Purging the product:
If the pressure is lower than 0.03 MPa (0.3 bar) and then is above 0.05 MPa (0.5 bar) for longer than 15
seconds, the automatic purging function is activated.
The function is activated in the small domestic hot water circuit for 4 minutes and then in the heating circuit for
1 minute.
This function cannot be manually switched off.
Summary of Contents for EASICOM 3 24c
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