Vaillant ecoTEC pro 28, Инструкция по установке и обслуживанию

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Instructions for installation and servicing ecoTEC
5.9 Checking the gas supply
5.9.1 Factory settings
Caution!
Before operating the boiler check the data
badge and ensure that the correct gas type
appliance has been installed.
The boiler is supplied ready adjusted and no further gas
adjustments are necessary, however both the gas inlet
working pressures and maximum gas rates should be
checked as detailed in 5.9.2 and 5.9.3.
5.9.2 Gas inlet working pressure
Check the inlet pressure as described below:
• Remove the front case from the boiler.
• Close the gas shutoff valve fitted to the boiler.
1
2
Fig. 5.13 Checking the gas supply pressure
• Loosen the sealing screw marked “in” ( 1 ) on the gas
valve assembly.
• Connect a digital or a U gauge ( 2 ).
• Open the gas shutoff valve fitted to the boiler.
• Put the boiler into operation (refer to the Instructions
for Use supplied with the boiler).
• Check the U gauge reading and ensure the inlet gas
pressure is between the pressures detailed below.
Natural gas:
DO NOT proceed with adjustment or attempt to
put the unit into service if the inlet working
pressure lies outside the 17–25 mbar range.
LPG:
DO NOT proceed with adjustment or attempt to
put the unit into service if the inlet working
pressure is lower than 37 mbar.
• Turn off the appliance, remove U gauge.
• Tighten the test point screw and check for leaks.
• Record appliance working gas inlet pressure (mbar) in
the Benchmark Installation, Commissioning and
Service Log Book.
5.9.3 Checking the gas rate
The boiler is fitted with a fully modulating automatic gas
valve which ensures that the precise air/gas ratio is pro-
vided under all operating conditions.
The gas rate has been set during production and does
not require adjustment.
The gas rate of the boiler should be checked with the
front case fitted as follows:
• Activate full gas rate mode by simultaneously pressing
the “ + ” and “ – ” buttons on the display system (for
ecoTEC plus 800 and pro boilers fully open the hot
water tap to maximum water flow rate).
• Wait at least 5 minutes, or until the boiler has reached
its operating temperature.
• With all other gas appliances turned off measure the
gas rate at the gas meter. Check that the gas rate is as
stated in Table 5.1.
Appliance
Maximum
net heat
input in kW
Nominal gas rate
(Tolerance
±
5 %)
Natural gas
in m
3
/h
Propane
in kg/h
ecoTEC plus 612 12.2 1.3 0.95
ecoTEC plus 615 15.3 1.6 1.19
ecoTEC plus 618 18.4 1.9 1.43
ecoTEC plus 624 24.5 2.6 1.90
ecoTEC plus 630 30.6 3.2 2.38
ecoTEC plus 824 23.5 2.5 1.82
ecoTEC plus 831 31.6 3.3 2.46
ecoTEC pro 28 28.6 3.0 2.22
Table 5.1 Nominal gas rates
Caution!
If the measured gas flow volume lies outside
the tolerance limits specified in Table 5.1, do not
operate the appliance and inform the Vaillant
Customer Service.
Commissioning Part I 5