Hazard Definitions; Please Read Before Proceeding - Weil-McLain ULTRA ULTRA-105 Service Manual

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GAS FIRED WATER BOILER SERIES

Please read before proceeding

— Read all instructions, including this
manual, Ultra Boiler Manual, and the Ultra Vent
Supplement, before installing. Perform steps in the
order given.
— This document is for use only by a quali-
fied heating installer/service technician.
— Have this boiler serviced/inspected by a
qualified service technician, at least annually. Refer
to User's Information Manual for your reference.
Failure to comply with the above could result in
severe personal injury, death or substantial property
damage.
When calling or writing about the boiler — Please
have the boiler model number from the boiler rat-
ing label and the CP number from the boiler jacket.
You may list the CP number in the space provided
on the Installation and service certificate found in
the Ultra Boiler Manual.
Consider piping and installation when determining
boiler location.
The boiler must be modified according to the procedure in the High altitude instructions. The minimum fanspeed and
ignition fanspeed must be set on the Ultra Control module following the High altitude instructions (also included in this
document, beginning on page 47).
Hazard definitions
The following defined terms are used throughout this manual to
bring attention to the presence of hazards of various risk levels or
to important information concerning the life of the product.
Indicates presence of hazards that will cause severe
personal injury, death or substantial property dam-
age.
Indicates presence of hazards that can cause severe
personal injury, death or substantial property dam-
age.
Part number 550-100-029/0810
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1 & 2
To avoid electric shock, disconnect electrical supply
before performing maintenance.
To avoid severe burns, allow boiler to cool before per-
forming maintenance.
Failure to adhere to the guidelines on this page can
result in severe personal injury, death or substantial
property damage.
Commonwealth of Massachusetts
When the boiler is installed within the Commonwealth
of Massachusetts:
This product must be installed by a licensed plumber
or gas fitter.
If antifreeze is used, a reduced pressure back-flow
preventer device shall be used.
High altitude installations
Indicates presence of hazards that will or can
cause minor personal injury or property damage.
Indicates special instructions on installation, op-
eration or maintenance that are important but not
related to personal injury or property damage.
When servicing boiler —
3