Utica Boilers UB95M-200 Installationsanweisungen

A.  Close all zone service valves on supply and return 

piping. Open feed valve and fill boiler with water. 

Verify air vent is open. Hold relief valve open until 

water runs air free for five seconds to rapidly bleed 

air from boiler, then let relief valve snap shut.

B.  Open zone service valve on supply pipe for first 

zone. Open purge valve on first zone. Feed water 

will fill zone, pushing air out purge valve. Close 

purge valve when water runs air free. Close zone 

service valve.

C.  Repeat step 2 for all remaining zones.
D.  Open all service valves. Any air remaining trapped 

in return lines between service valves and boiler 

will be pushed towards air vent when boiler is 

placed in operation.

E.  Inspect piping system and repair any leaks 

immediately.

A.  Close all zone service valves on supply and return 

piping and close expansion tank service valve. 

Drain expansion tank. Open feed valve and fill 

boiler with water. Hold relief valve open until water 

runs air free for five seconds to rapidly bleed air 

from boiler, then let relief valve snap shut.

B.  Open zone service valve on supply pipe for first 

zone. Open purge valve on first zone. Feed water 

will fill zone, pushing air out purge valve. Close 

purge valve when water runs air free. Close zone 

service valve.

C.  Repeat step 2 for all remaining zones.
D.  Open expansion tank service valve and tank 

vent. Fill tank to proper level and close tank vent. 

Remove handle from expansion tank service valve 

so it is not accidentally closed.

E.  Open all service valves. Any air remaining trapped 

in return lines between service valves and boiler 

will be pushed towards expansion tank when boiler 

is placed in operation.

F.  Inspect piping system. Repair any leaks immediately.

Do not use stop leak compounds. Repair leaks in 

threaded connections of aluminum boiler sections. 

Aluminum threads do not seal themselves.