Gas Settings; Adapting To Another Gas Type; Setting The Air/Gas Ratio (Full Load) - REMEHA Calenta 25s Installation And Service Manual

Calenta 25s - 28c - 35s - 40c
5.4

Gas settings

040412 - 7600585-01
5.4.1.

Adapting to another gas type

WARNING
Only a qualified engineer may carry out the following
operations.
The boiler is preset in the factory to operate on natural gas G25 (Gas
L).
4
4
For operation on another group of gases, carry out the following
operations:
4 Regulate the fan speed as indicated in the table (if required). The
setting can be modified using parameters p17, p18,
p19 and p20:
¼ See chapter: "Parameter descriptions", page 64
4 Set the air/gas ratio. For more detailed information:
¼ See chapter: "Setting the air/gas ratio (Full load)", page
57
¼ See chapter: "Setting the air/gas ratio (Part load)", page
59
5.4.2.

Setting the air/gas ratio (Full load)

1. Unscrew the plug of the flue gas measurement point.
2. Connect the flue gas analyser.
WARNING
Ensure that the opening around the sensor is completely
sealed when taking measurements.
T001526-A
If the boiler is converted, for example, to:
G20 (Gas H)
-
G31 (Propane)
-
It is necessary to mention on the sticker provided: This
boiler has been set for.... This sticker must be affixed
to the top of the boiler next to the identification plate.
If operating on propane, Remeha cannot guarantee
compliance with all aspects of comfort in accordance
with the CW label.
5. Commissioning
57