Ultra Boiler Manual

Part number 550-100-440/0122
48
  


If boiler is already installed — You must turn
o electrical supply to the boiler and close the
external manual gas shut-o valve to isolate the
boiler during conversion. Allow the boiler to cool
if it has been operating. Following conversion of
an installed boiler, follow all instructions in this
manual to start up the boiler and verify operation
of the boiler and all system components.
1. Locate propane orice disc from conversion kit bag.
2. Verify that the stamping on the orice disk matches the model
size (see Figure43).
3. With the new boiler on its back, remove jacket front door by
removing two (2) screws at lower front.
Figure 43 Orice identication
Figure 44 Installing propane orice
(Ultra-105 or Ultra-80LP ONLY)



Ultra boilers must be converted for pro-
-
factured for propane
. Propane-ready boilers
have sux “LP” aer the model number. All
other boilers require conversion for propane
operation.
Ultra-80 natural gas boilers require installation
of a burner in addition to an orice change.
DO NOT use the instructions in this manual
for these boilers. Use only the instructions
included in the special-order conversion kits.
Converting existing natural gas-fired
boiler for propane
— For a boiler already
installed, you must turn o gas supply, turn
off power and allow boiler to cool before
proceeding. You must also completely test the
boiler aer conversion to verify performance
and start up the boiler following instructions
beginning on page35 of this manual.
High altitude installations — For instal-
lations more than 5,500 feet above sea level,
obtain the high altitude propane orice kit..
  — See Figure43. Verify
when installing that the orice size marking
matches boiler size. Use only the special-order
high altitude orice for altitudes above 5,500
feet.
Failure to comply could result in severe per-
sonal injury, death or substantial property
damage.