Ultra Boiler Manual

Part number 550-100-440/0122
128
  
Replacement parts
Replacement parts must be purchased through a local WM Technologies distributor. When
ordering, specify boiler model and size and include description and part number of replacement
part. Results from using modied or other manufactured parts will not be covered by warranty
and may damage boiler or impair operation.
Weil-McLain part numbers are found in Weil-McLain Boilers and Controls Repair Parts Lists.
. Use care when handling these materials per
instructions on page109 of this manual. Failure to comply could result in severe personal injury.

Inspect boiler door gaskets and reinstall boiler door aer start or servicing. e boiler 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.
Failure to keep the door securely fastened could result in severe personal injury or death.
Figure 129 Propane conversion kits and instructions
e conversion kits listed below are only for use with Ultra Series 4 boilers. For series1 or series2 boilers,
refer to the boiler manual or contact WM Technologies for the correct parts.
Natural to propane conversion — 

Sea level (to 5,500 feet altitude) High altitude (above 5,500 feet)
Model Kit part # Kit location Instructions Model Kit part # Kit location Instructions
Ultra-80 383-501-020
SPECIAL
ORDER
In kit only
Ultra-80LP 383-500-644
SPECIAL
ORDER
See page 48 or kit
Ultra-105
540-100-001
Supplied with boiler
See page 48 Ultra-105 383-500-645
SPECIAL
ORDER
See page 48 or kit
Ultra-155
383-500-115
Supplied with boiler
See page 49 Ultra-155 383-500-646
SPECIAL
ORDER
See page 49 or kit
Ultra-230
383-500-120
Supplied with boiler
See page 49 Ultra-230 383-500-647
SPECIAL
ORDER
See page 49 or kit
Ultra-299
540-202-832
Supplied with boiler
See page 49 Ultra-299 383-500-394
SPECIAL
ORDER
See page 49 or kit
Propane to natural conversion
-80 383-501-021
SPECIAL
ORDER
In kit only
Contact factory
Boilers marked with this symbol require special installation procedures. Do not use the instructions in this manual — use only the instructions supplied in
the conversion kit.