Viessmann Series B2HA 40, Инструкция по установке и обслуживанию

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36
Designating heating circuits - only for weather-compensated
control units
In the delivered condition, the heating
circuits are designated "Heating circuit
1", "Heating circuit 2" and "Heating cir-
cuit 3" (if installed).
If the system user prefers, the heating
circuits can be designated differently to
suit the specific system. To enter names for heating circuits:
Operating instructions
Checking the gas type
The boiler is equipped with an electronic
combustion controller that adjusts the
burner for optimum combustion in
accordance with the prevailing gas qual-
ity.
■ Consequently, for natural gas there is
no adjustment required across the
entire Wobbe index range.
The boiler can be operated in the
Wobbe index range 9.5 to
15.2 kWh/m
3
, (34.2 to 54.7 MJ/m
3
).
■ Convert the burner for operation with
LPG (see "Gas type conversion" on
page 37).
1. Determine the gas type and Wobbe
index by asking your local gas supply
utility or LPG supplier.
2. Convert the burner for operation with
LPG (see page 37).
3. Record the gas type in the report on
page 173.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5623 520 GB