Vailant ecoTEC plus 937, Инструкция по установке и обслуживанию

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Installation and maintenance instructions ecoTEC plus 937 0020031552_06
45
The setting mode is also de-activated if a button is
not pushed within a period of 4 minutes.
Appliance Heating output in kW
ecoTEC plus 937 12 - 28
Table 6.3 Setting the part load ranges of the heating system
6.12 Converting the gas type
i
To convert the appliance from natural gas to
liquid gas you will need the Vaillant modifica-
tion kit Part No. 00 2001 0641.
To convert the appliance from liquid gas to natu-
ral gas you will need the Vaillant modification
kit Part No. 00 2001 0642.
Perform the conversion of the appliance in
accordance with the description in the modi-
fication set.
7 Commissioning Part II: Functional
checks
7.1 Functional checks
7.1.1 Method of procedure
After installing and setting the gas, perform a function
check before commissioning the appliance and handing
over to the user.
Commission the appliance in accordance with the
instructions in the relevant operating manual.
Check the gas supply pipework, the flue system, the
heating system and the hot water pipework for leaks.
Check that the flue system is properly fitted in
accordance with the installation instructions for the
flue system.
Check the ignition and whether the burner is showing
a consistent flame picture.
Carry out a function check of the heating system (see
Section 7.1.2) and the hot water preparation (see Sec-
tion 7.1.3).
Hand over the appliance to the user (see Section 7.2).
Fig. 7.1 Function check
7.1.2 Heating
Switch on the appliance.
Make sure that there is a heat demand.
Press "
i " to activate the status indicator.
As soon as there is a heat demand the display runs
through status indications "
S. 1 " to " S. 3 ", until the
appliance is running properly in normal operation and
the display shows
"S. 4 ".
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Commissioning, Part I 6
Commissioning Part II: Functional checks 7