EHC ECOSAVE 21K, Инструкция по эксплуатации

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35 Final Check and Commissioning EHC
Checking and Adjusting the CO 15.4
2
Value
As described on the data plate, this appliance is set for natural
gas by default. Furthermore, this appliance can be used without
adjusting the CO
2
.
Subject to the WEBBER INDEX, the CO
2
8.9% and 9.3%. The CO
2
adapter test point.
If the actual CO
2
value deviates from the stated ranges by more
than 1.0%, check the flue system for leaks.
Check the discharge amount, and adjust the CO
2
value using
the following procedures.
1.
2.
Set the 3rd dip switch to the "ON" position. 3.
The burner is now set to the minimum rated input.
For details about setting dip switches, see "14.5 the
DIP Switch Settings".
Check the CO 4.
2
value.
If the actual value deviates more than 1.0% from the -
If the measured CO -
2
value is not correct, adjust the gas-
air ratio adjustment screw “C” on the gas control valve
after removing the cap on the gas-air ratio adjustment
screw “C”. Turn it to the right to increase the CO
2
level and
turn it to the left to decrease it.
Enter actual values in the service report. 5.
The following mentioned items are done in conjunction 6.
with the checking and adjusting of the CO
2
level.
6-1. Prepare the water column meter or manometer
Maintain the appliance at the minimum
rated output while checking the gas-air ratio
with a water column meter or manometer.
Set the 3rd dip switch to “OFF” and set the 2nd dip switch to 7.
“ON”.
The burner is now set to the maximum rated input.
Check the CO 8.
2
value.
Note
If the actual value deviates more than 1.0%
from the above range, check the seals in the
Enter the actual values in the service report. 9.
6-2. Wait for around 30 seconds.
6-3. Read the gas-air ratio.
If the gas/air ratio is not between in 0 and -0.1 mbar,
you should adjust the adjustment screw “C” on
the gas valve.
Note Note that the process will automatically end
after 15 minutes.
Set the 2nd dip switch to “OFF”. 10.
Gas
Note
For more information about the CO
2
values for each
model, refer to "CO
2
Level" table on appendix.
Gas-air Ratio
adjustment
screw “C”
test point “B”
Digital
pressure
manometer