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ecoTEC exclusive installation and maintenance instructions / 0020017768_02
2
1
Fig. 6.5 Checking the gas supply pressure
• Release the sealing screw marked
"in"
(
1
) on the
gas fitting.
• Connect a digital pressure manometer or u-gauge
manometer (
2
).
• Open the gas isolation cock on the unit.
• Start the appliance up via
P.1
(see Chapter 9.2).
• Measure the connection pressure in comparison
with atmospheric pressure.
a
Natural gas:
If the connection pressure is outside the range
17 to 25 mbar, no adjustment should be under-
taken, and the unit must not be started up!
a
Liquid gas:
If the connection pressure is outside the range
25 to 45 mbar, no adjustment should be under-
taken, and the unit must not be started up!
If the connection pressure is within the permissible
range, proceed as follows:
• Take the appliance out of operation.
• Close the gas isolation cock on the unit.
• Remove the pressure gauge and screw the sealing
screw (
1
) back in again.
• Open the gas isolation cock on the unit.
• Make sure that the sealing screw is not leaking.
• Put the front cover back on and turn on the device.
If the connection pressure is
not
within the permissible
range and you cannot resolve the problem, inform the
gas supply authority. Proceed as follows:
Take the appliance out of operation.
• Close the gas isolation cock on the unit.
• Remove the pressure gauge and screw the sealing
screw (
1
) back in again.
• Make sure that the sealing screw is not leaking.
Put the front casing back on.
Do not start up the appliance!
6.2.2 Checking CO
2
content and setting if necessary
(setting the air figure)
• Remove the front cover.
• Activate test programme P.1 (see Chapter 9.2).
• Wait at least 5 minutes until the appliance reaches
its operating temperature.
1
2
3
4
Fig. 6.6 Checking/adjusting the CO
2
content
• Measure the CO
2
content on the flue gas measuring
nozzles (
1
). Compare the measured value with the
corresponding value in Table. 6.1.
• If the CO
2
content needs to be adjusted, release the
screw (3) and hinge the air intake pipe (
2
) through
90° to the front. Do not remove the air intake pipe!
• If necessary, set the corresponding CO
2
content
(value with removed appliance front, see Table 6.1)
by turning the screw (
4
) in.
Start-up 6