
 Modu-Fire® Gas-Fired  Boiler
2.4SAFETY LABELS
NOTE
Make sure this union is tight before closing cabinet cover after servicing boiler.
c 1998 HCS, Inc.   | Reorder No.   | 
NOTE
When opening leak test valves, always follow instructions in operation and safety manual.
c 1998 HCS, Inc.   | Reorder No.   | 
!WARNING
Improper use may result in fire or injury.
Read instructions/safety manual before installing, operating or servicing boiler.
c 1998 HCS, Inc.   | Reorder No.   | 
!  | WARNING  | 
Electrical hazard.  | |
Follow lockout/tagout  | |
procedure when  | |
servicing this boiler.  | |
C 1998 HCS, Inc.   | Reorder No.   | 
The safety labels shown above are affixed to your boiler. Although the labels are of high quality, they may become dislodged or unreadable over time. Contact 
2.5SAFETY PRECAUTIONS
Provide a suitable location for the boiler, away from normal personnel traffic, with adequate working space, adequate clearances, proper ventilation and lighting, with a structure sufficiently strong and rigid to support the weight of the boiler, all piping, and accessories.
2.5.1 Electrical Hazards
!  | WARNING  | 
Electrical hazard.  | |
Follow lockout/tagout  | |
procedure when  | |
servicing this boiler.  | |
C 1998 HCS, Inc.   | Reorder No.   | 
Safety
•Shock hazard! Properly lockout/tagout the elec- trical service and all other energy sources before working on or near the machine.
•Shock hazard! Boiler is not rated for wash- down service.
2.5.2 Burn, Fire, and Explosion Hazards
General Warning  | Hot Surface  | 
!WARNING
Improper use may result in fire or injury.
Read instructions/safety manual before installing, operating or servicing boiler.
c 1998 HCS, Inc.   | Reorder No.   | 
NOTE
Make sure this union is tight before closing cabinet cover after servicing boiler.
c 1998 HCS, Inc.   | Reorder No.   | 
NOTE
When opening leak test valves, always follow instructions in operation and safety manual.
c 1998 HCS, Inc.   | Reorder No.   | 
•Burn, fire, and explosion hazards! Installation must be in strict conformance to all applicable codes and standards including NFPA 54, ANSI Z223.1 and CAN/CGA B.149. Install all re- quired ventlines for gas devices. Refer to Sec- tion 3.7.2.
•Hazard from incorrect fuels! Possible fire, ex- plosion, overheating, and damage. Do not use any fuels except the design fuel for the unit.
•Overfire hazards! High pressure in gas or pro- pane supply could result in overfiring of other devices supplied from the same source.
•Fire and explosion hazards! Close the main gas shutoff before servicing boiler.
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