Checking The Diaphragm Expansion Vessel And System Pressure - Viessmann VITOPEND 200 Installation And Service Instructions Manual

Initial start-up, inspection, maintenance
Further details regarding the individual steps
Checking the diaphragm expansion vessel and system pres-
sure
A Pressure switch
B Lid
C Test port
Checking all gas equipment for soundness at operating pres-
sure
Danger
Escaping gas leads to a risk of
explosions.
Check gas equipment for
soundness.
36
(cont.)
1. Pull the cables off pressure
switch A.
2. Secure cover B.
3. Check the diaphragm expansion
vessel inlet pressure at test port C
and recharge, if required.
4. Secure cover B and push the
cables onto pressure switch A.