Commissioning
42
Installation and maintenance instructions ecoTEC plus 0020134833_01
10
Display
Meaning
P.00
1)
Purging test program
The heating circuit and the hot water circuit are purged
using the automatic air vent (the cap of the automatic
air vent must be released).
1 x right-hand selection button: Start heating circuit
purging
2 x right-hand selection button ("
->
"): Start purg-
ing hot
water cir-
cuit
3 x right-hand selection button ("
->
"): Restart
heating cir-
cuit purg-
ing
1 x left-hand selection button ("Cancel"): Exit purging
program
The internal pump is cyclically actuated.
Note:
The purge program runs 7.5 min per circuit.
P.01
Maximum load test program:
The boiler is operated at maximum heat input after suc-
cessful ignition.
P.02
Minimum load test program:
The boiler is operated at minimum heat input after suc-
cessful ignition.
P.06
Filling mode test program:
The diverter valve (VUV) is moved to the mid-position.
The burner and pump are switched off (to fill or drain
the boiler).
10.1
Overview of the test programs
1)
Purging the heating circuit:
Diverter valve in heating position, actuation of internal pump
for 9 cycles: 30 sec. on, 20 sec. off. Display: "Active heating cir-
cuit".
Purging the hot water circuit:
After the above-mentioned cycles have run or the right-hand
selection button has been pressed again: Diverter valve in the
hot water position, actuation of the internal pump as above. Dis-
play: "Active hot water circuit".
i
If you do not press a button for more than
15 minutes. the test programs are stopped auto-
matically. The boiler switches to normal operat-
ing mode.
To terminate the test programs, you can press the left-hand
selection button ("Cancel") at any time.
P.00 Exhaust
Cancel
Heating circuit
1,0 bar
10.1
Boiler in error condition
i
If the boiler is in error condition, you cannot
start any test programs. You can detect an error
condition by the fault symbol shown in the left
bottom corner of the display (
fig. 10.1
). You must
first clear the faults.
10.5
Preparing the heating water
Observe the specifications concerning heating water prepa-
ration in (
¬ section 2.5.8
).
10.6
Reading off the filling pressure
The boiler is equipped with an analogue pressure gauge
(
fig. 3.2
) and also has a symbolic bar display for the filling
pressure of the heating installation and a digital pressure
and temperature display.
You can see the pressure gauge once you have removed
the front casing of the boiler.
Press the right-hand selection button twice to read off the
digital filling pressure value.
10.7
Filling and purging the heating installation
b
Caution.
Risk of damage caused by contaminated
lines.
Foreign bodies such as welding remnants,
sealing residue or dirt in the water pipes
may cause damage to the boiler.
>
Flush the heating installation thoroughly
prior to commissioning.
The system is filled via an filling connection that is installed
on-site and that must be attached in a suitable position in
the heating circuit. This connection must be removed again
after the filling process is complete. If the local Water
Authority regulations do not allow temporary connection a
sealed system filler pump with break tank must be used.
The heating system will not be filled automatically from the
domestic hot water side. (Alternative methods of filling
sealed systems are given in BS 5449) The ecoTEC plus
combination boilers can be filled via the built in filling loop
under the boiler (
¬ fig. 10.3
).
To ensure the correct operation of the heating installation,
the indicator on the pressure gauge must point to the
upper half of the grey area or in the middle of the bar
graph display (marked by the dashed limit value) when the
heating installation is cold. This corresponds to a filling
pressure of between 0.1 MPa and 0.2 MPa (1.0 bar and
2.0 bar).
You can also display the exact filling pressure
(
¬ section 10.6
).
Summary of Contents for ecoTEC plus VUI
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