Technical information
3
11
We reserve the right to make any changes due to technical modifications.
Installation and maintenance instructions Logano G215 US oil/gas-fired boilers • Issue 11/2004
3.2.6 Hydraulic conditions and water quality
Operating conditions
Notes – Requirement in greater detail
Operating pressure
(overpressure)
15 – 58 psi
Maximum 30 psi with the supplied safety valve.
Permissible site test pressure
45 – 75 psi
Protection against over-
temperatures with TR
thermostat
122 – 194 °F
Temperature safety limit by
STB safety temperature cut-out
212 – 248 °F
On some controls adjustable on site from 212 to 248 °F.
Water quality
–
Use only drinking water to fill and top-up the boiler. We recommend a pH value
of 8.2 – 9.5.
Tab. 8
Hydraulic system and water quality