Centrometal PelTec Series Technical Instructions page 30

Temperatures (BUF -- DHW)
2.6 / 2.8 DIFFERENTIAL OF DHW
Possible selection:
default: 5°C
Minimum: 4°C
Maximum: 40°C
The possibility of setting domestic hot water diference.
2.1 MAX. BOILER TEMP. (ONLY 69/96)
Possible selection:
default: 85°C
Minimum: 80°C
Maximum: 90°C
The possibility of setting maximum boiler temperature.
2.2 DIFF. BOILER (ONLY 69/96)
Possible selection:
default: 8°C
The view of boiler difference setting (not possible to change).
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Technical instructions REGULATION PelTec / PelTec-lambda