Testing Relief Valve - Buderus Logano G115 WS US/CA Installation And Service Instructions Manual

8
Heating system servicing
Caution: Risk of damage to system due to
material stresses caused by temperature dif-
ferentials.
V Only fill the system when cold (the flow
temperature at the temperature/pressure
gauge should be no more than 100 °F).
V Add water through the feed valve.
V Bleed the heating system.
V Check the operating pressure again.
8.5

Testing relief valve

The functioning of the pressure relief valve must be
checked at regular intervals (1-3 years as specified by
local codes).
V Make sure that no persons are in the discharge area of
the pressure relief valve.
V Raise the lever on the pressure relief valve.
The pressure relief valve must open and release pressure.
If the pressure relief valve does not discharge, it must be
replaced, because system components may be damaged
by excessive pressure.
38 Logano G115 WS US/CA - Technical specifications are subject to change without prior notice.