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Mend Saunier Duval SD620F Home Heating Systems

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Mend Saunier Duval SD620F Air Pressure Expansion

saunier duval sd620f?

can anyone tell me what the air pressure should be on the expansion vessel please

margaret
November 2012
Saunier DuvalSaunier Duval SD620FHeating, Home Heating SystemsAir Pressure Expansion
.75 to 1.5 but refer to boiler technical or phone company to be done with boiler empty

ltd
November 2012

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