Crown Boiler CWD220 Manual De Usuario

74

74

The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for 
installation of side-wall vented gas appliances as follows:

1.  For direct-vent appliances, mechanical-vent heating appliances or domestic hot water equipment, where  

 

 

the bottom of the vent terminal and the air intake is installed below four feet above grade the following  

 

 

requirements must be satisfi ed:

 

a.  If there is not already one present, on each fl oor level where there are bedroom(s), a carbon 

 

 

monoxide detector and alarm shall be placed in the living area outside the bedroom(s).  The carbon  

 

 

 

monoxide detector shall comply with NFPA 720 (2005 Edition).

 
 

b.  A carbon monoxide detector shall be located in the room that houses the appliance or equipment

  and 

shall:

 

 

 

 

i. 

Be powered by the same electrical circuit as the appliance or equipment such that only one 

 

 

 

service switch services both the appliance and the carbon monoxide detector;

 

 

ii.  Have battery back-up power;

 

 

iii.  Meet ANSI/UL 2034 Standards and comply with NFPA 720 (2005 Edition); and

 

 

iv.  Have been approved and listed by a Nationally Recognized Testing Laboratory as recognized   

 

   under 

527 

CMR.

 

c.  A product-approved vent terminal must be used, and if applicable, a product-approved air intake    

 

 

 

must be used.  Installation shall be in strict compliance with the manufacturer’s instructions.  A copy    

 

 

of the installation instructions shall remain with the appliance or equipment at the completion of the  

 

  installation.

 

d.  A metal or plastic identifi cation plate shall be mounted at the exterior of the building, four feet  

 

 

 

 

directly above the location of the vent terminal.  The plate shall be of suffi cient size to be easily read    

 

 

from a distance of eight feet away, and read “Gas Vent Directly Below”.

2.  For direct-vent appliances, mechanical-vent heating appliances or domestic hot water equipment, where  

 

 

the bottom of the vent terminal and the air intake is installed above four feet above grade the following  

 

 

requirements must be satisfi ed:

 

a.  If there is not already one present, on each fl oor level where there are bedroom(s), a carbon 

 

 

monoxide detector and alarm shall be placed in the living area outside the bedroom(s).  The carbon  

 

 

 

monoxide detector shall comply with NFPA 720 (2005 Edition).

 
 

b.  A carbon monoxide detector shall :

 

 

 

 

i. 

Be located in the room that houses the appliance or equipment

 

 

ii.  Be either hard-wired or battery powered or both; and

 

 

iii.  Comply with NFPA 720 (2005 Edition)

 

c.  A product-approved vent terminal must be used, and if applicable, a product-approved air intake    

 

 

 

must be used.  Installation shall be in strict compliance with the manufacturer’s instructions.  A copy    

 

 

of the installation instructions shall remain with the appliance or equipment at the completion of the  

 

  installation.