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The installation must conform to the re-
quirements of the authority having jurisdic-
tion or, in the absence of such
requirements, to UL 795 Commercial-In-
dustrial Gas Heating Equipment and/or
the National Fuel Gas Code, ANSI Z223.1
!
DANGER
WARNING
The boiler and its individual shutoff valve
must be disconnected from the gas sup-
ply piping system during any pressure
testing of that system at test pressures in
excess of 1/2 psi (3.5 kPa).
!
DANGER
WARNING
Summary of Contents for 4WI
Page 46: ...Burner Operation and Control 2 22 750 211 revised 2009 Promethean Boilers Model 4WI Manual...
Page 62: ...Waterside Care and Requirements 3 16 750 211 revised 2009 Promethean Boilers Model 4WI Manual...
Page 70: ...Sequence of Operation 4 8 750 211 revised 2009 Promethean Boilers Model 4WI Manual...
Page 114: ...Adjustment Procedures 6 28 750 211 revised 2009 Promethean Boilers Model 4WI Manual...