Unitherm Governor (U.g.) Replacement - Raypak 268 Installation & Operating Instructions Manual

UNITHERM GOVERNOR (U.G.) REPLACEMENT

1. Shut water, gas and electricity off, close valves
and relieve pressure.
2. Drain heat exchanger.
3. Remove retainer plug located next to the outlet
pipe connection.
4. Unsnap old U.G. to remove from retainer plug.
Snap in new U.G.
5. Reinstall retainer plug, taking care to lubricate
gasket with a non-petroleum based grease such
as AquaLube.
UG PLUG
To test the operation of the Unitherm Governor, place
in hot water (over 110°F) and watch for movement
against spring. If there is no movement, replace unit.
35
GASKET
(BEHIND UG)
UNITHERM
GOVERNOR
UG SPRING