Install Instructions

Ultra jacket and front top cover removal
Part number 550-100-055/0618
4
gas-fired water boilers — Heat Exchanger Block Replacement Instructions
e boiler contains ceramic ber materials.
Use care when handling these materials per
Ultra Boiler Manual. Failure to comply could
result in severe personal injury.
ELECTRICAL SHOCK HAZARD — For
your safety, turn o electrical power supply
at service entrance panel before making any
electrical connections to avoid possible elec-
tric shock hazard. Failure to do so can cause
severe personal injury or death.
Refer to the Ultra Boiler Manual for compo-
nent locations and illustrations.
You must refer to the Ultra Boiler Manual to follow these instructions. DO NOT proceed with the replacement
procedure without having an Ultra Boiler Manual. Failure to comply can result in severe personal injury, death or
substantial property damage.
STOP!
Read before proceeding
Shut off power to the boiler and close main
gas valve. Close all isolation valves
. Failure
to do so can result in severe personal injury, death
or substantial property damage.
Wait for the heat exchanger to cool down
before proceeding
. Failure to do so can result
in severe personal injury.
Reinstall boiler front door after start-up
or servicing
. e boiler front door must be
securely fastened to the boiler to prevent boiler
from drawing air from inside the boiler room.
is is particularly important if the boiler is
located in the same room as other appliances.
Inspect boiler jacket door gaskets. Gaskets must
be in good condition, with no tears or gaps.
Replace if necessary.
Failure to keep the door securely sealed and
fastened could result in severe personal injury
or death.
Removing and reinstalling components can
change boiler behavior. Aer any maintenance
procedure, you must prove the boiler is oper-
ating correctly. To do so, follow the complete
procedure for boiler and system start-up as
instructed in the Boiler Manual
. Failure to
comply could result in severe personal injury,
death or substantial property damage.
Turn o gas before replacing air inlet adapter.
If boiler is hot from operation, allow time to
cool before proceeding. Failure to do so can
cause severe personal injury, death, or sub-
stantial property damage.
Ultra boilers should not be installed into a
common vent with any other appliance. is
will cause ue gas spillage or appliance mal-
function, resulting in possible severe personal
injury, death, or substantial property damage.
Replacement instructions:
1. Verify with packing list that you have the correct kit
contents.
2. Turn off and disconnect power from the boiler.
3. Remove the boiler front jacket panel by loosening the (2)
screws at the bottom of the front panel with a flat blade
screwdriver. Once screws are loose, lift front jacket panel
and pull forward to remove from boiler, see Figure 1.
4. Remove four (4) screws from the top black front plastic
panel using a Phillips head screwdriver.
Figure 1 Front door removal