Start-up 7
0020181589_04 auroCOMPACT Installation and maintenance instructions
27
6.
As soon as check programme
P.00
has finished, open
the air separator
(1)
on the unit's hot water circuit until
water escapes from it, and then close it again.
7.16
Checking and adjusting the gas settings
7.16.1 Checking the gas connection pressure (gas
flow pressure)
1.
Close the gas isolator cock.
1
1
2
2.
Use a screwdriver to undo the sealing screw on the gas
valve's measuring connection
(1)
(bottom screw).
3.
Connect a pressure gauge
(2)
to the measuring nipple
(1)
.
4.
Open the gas isolator cock.
5.
Start up the product with the check programme
P.01
.
6.
Measure the gas connection pressure against atmo-
spheric pressure.
Applicability:
Germany
OR Austria
–
Permissible gas connection pressure for opera-
tion with G20 natural gas: 1.7 … 2.5 kPa
Applicability:
Germany
–
Permissible gas connection pressure for opera-
tion with G25 natural gas: 1.8 … 2.5 kPa
Applicability:
Austria
OR Germany
–
Permissible gas connection pressure for opera-
tion with G31 liquid gas: 4.25 … 5.75 kPa
7.
Switch off the product.
8.
Close the gas isolator cock.
9.
Remove the pressure gauge.
10. Tighten the screw on the measuring nipple
(1)
.
11. Open the gas isolator cock.
12. Check the measuring nipple for gas tightness.
Conditions
: Gas connection pressure
not
in the permissible range
Caution.
Risk of material damage and operating
faults caused by incorrect gas connec-
tion pressure.
If the gas connection pressure lies outside
the permissible range, this can cause oper-
ating faults in and damage to the product.
▶
Do not make any adjustments to the
product.
▶
Do not start up the product.
▶
If you are unable to remedy the fault, contact the gas
supply company.
▶
Close the gas isolator cock.
7.16.2 Checking the CO
₂
content and, if necessary,
adjusting it (air index setting)
1
1.
Start up the product with the check programme
P.01
.
2.
Wait at least five minutes until the product reaches its
operating temperature.
3.
Measure the CO
₂
content at the flue gas analysis point
(1)
.
4.
Compare the measured value with the corresponding
value in the table.
Gas adjustment values as set at the factory (
Applicab-
ility:
Austria)
Gas adjustment values as set at the factory (
Applicab-
ility:
Germany)
Conditions
: The CO
₂
content must be adjusted
▶
Remove the front casing.
