Patterson-Kelley MACH-05 ユーザーズマニュアル

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  MACH®  Series
 
Gas-Fired Boiler 
Safety 
 
 
Page  3 
•  Burn hazard!  Hot fluids.  Use caution when 
servicing or draining boiler.  
•  Fire and explosion hazards!  Use caution when 
servicing burner.  Propane (LPG) is heavier than 
air and may linger in the combustion chamber, 
vent lines, or elsewhere.  
•  Gas leak hazard!  Make sure the burner is installed 
correctly and burner hood is securely fastened  
following any maintenance performed on them.  
These connections cannot be tested after the 
burner is assembled. 
•  Gas leak hazard!  All threaded gas connections 
must be made using a pipe compound that is 
resistant to liquefied petroleum.  Do not use 
Teflon
™ tape on threaded gas piping.   
•  Gas leak hazard!  Check entire gas train for leaks 
after installation.  If there is a smell of gas, shut 
down the boiler and obtain immediate assistance 
from trained service personnel and/or your local 
fire department.    
•  Overfire hazard!  Possible fire and explosion from 
excess gas pressure.  Make sure that gas inlet 
pressure does not exceed 14 inches W.C. to the 
regulator. 
•  Overfire hazard!  Possible fire and explosion.    
Possible malfunction of regulators and/or gas 
safety shut off / control valves.  Maintain all gas 
train components in good condition.  Do not alter 
wiring connections.  Annual inspection by factory-
trained personnel for proper set-up and operation 
is recommended.  
•  Overfire and underfire hazards!  Possible fire, 
explosion, overheating, and component failure.  
Do not attempt to adjust firing rate of the boiler. 
The firing rate must be adjusted only by factory 
trained personnel.  
 
2.5.3  Crush Hazards 
 
General Warning
 
 
•  Lifting hazards!  Use properly rated lifting 
equipment to lift and position the boiler.  The load 
is unbalanced.  Test balance before lifting 3 ft. 
above the floor.  Do not allow personnel beneath 
the lifted load.  Refer to approximate weights in 
the table below:  
 
Boiler Size 
Weight in Pounds 
300,000 Btu 
354 
450,000 Btu 
440 
750,000 Btu 
650 
900,000 Btu 
700 
1,050,000 Btu 
750 
 
 
•  Bump hazard from overhead ductwork and piping.  
Install components with adequate vertical 
clearance.  
 
2.5.4  Chemical Hazards 
 
General Warning
   
 
•  Chemical hazards from cleaning products.  Use 
caution when cleaning the system.  The use of 
professional assistance is recommended.  Use safe 
procedures for the disposal of all cleaning 
solutions. 
•  Combustion Condensate – a pH of approximately 
4 to 5 can be expected.  Use PVC or CPVC piping.  
Collection and disposal must be in accordance 
with all applicable regulations.