Carbon monoxide alarms?

[mtlogcabin]

How are you interpreting the exception? Do all 3 items need to be met?

Example. 4 story Hotel item 3 is met throughout the common areas, all fuel fired appliances are on the first floor. Each hotel room has an individual electric HVAC unit.

Do the 2nd, 3rd, and 4th floor sleeping units require carbon monoxide alarms?

[F] 908.7 Carbon monoxide alarms.

Group I or R occupancies located in a building containing a fuel-burning appliance or in a building which has an attached garage shall be equipped with single-station carbon monoxide alarms. The carbon monoxide alarms shall be listed as complying with UL 2034 and be installed and maintained in accordance with NFPA 720 and the manufacturer’s instructions. An open parking garage, as defined in Chapter 2, or an enclosed parking garage ventilated in accordance with Section 404 of the International Mechanical Code shall not be considered an attached garage.

Exception: Sleeping units or dwelling units which do not themselves contain a fuel-burning appliance or have an attached garage, but which are located in a building with a fuel-burning appliance or an attached garage, need not be equipped with single-station carbon monoxide alarms provided that:

1. The sleeping unit or dwelling unit is located more than one story above or below any story which contains a fuel-burning appliance or an attached garage;

2. The sleeping unit or dwelling unit is not connected by duct work or ventilation shafts to any room containing a fuel-burning appliance or to an attached garage; and

3. The building is equipped with a common area carbon monoxide alarm system.

 

[steveray]

Yes.....I say 3rd and 4th need per #1

 

[cda]

How are you interpreting the exception? Do all 3 items need to be met?Example. 4 story Hotel item 3 is met throughout the common areas, all fuel fired appliances are on the first floor. Each hotel room has an individual electric HVAC unit.

Do the 2nd, 3rd, and 4th floor sleeping units require carbon monoxide alarms?

[F] 908.7 Carbon monoxide alarms.

Group I or R occupancies located in a building containing a fuel-burning appliance or in a building which has an attached garage shall be equipped with single-station carbon monoxide alarms. The carbon monoxide alarms shall be listed as complying with UL 2034 and be installed and maintained in accordance with NFPA 720 and the manufacturers instructions. An open parking garage, as defined in Chapter 2, or an enclosed parking garage ventilated in accordance with Section 404 of the International Mechanical Code shall not be considered an attached garage.

Exception: Sleeping units or dwelling units which do not themselves contain a fuel-burning appliance or have an attached garage, but which are located in a building with a fuel-burning appliance or an attached garage, need not be equipped with single-station carbon monoxide alarms provided that:

1. The sleeping unit or dwelling unit is located more than one story above or below any story which contains a fuel-burning appliance or an attached garage;

2. The sleeping unit or dwelling unit is not connected by duct work or ventilation shafts to any room containing a fuel-burning appliance or to an attached garage; and

3. The building is equipped with a common area carbon monoxide alarm system.

Which code edtion are you using?

 

[tmurray]

Yes.....I say 3rd and 4th need per #1

3rd and 4th don't need one per #1. The "and" means all conditions must be present to take advantage of the exception.

 

[steveray]

Typo....agree just the adjacent floors would need them...2nd and basement if there is one...

It probably should read "where all of the following are met"

 

[FM William Burns]

Yes, so I'm with Tmurray......

 

[JBI]

Unanimity is a beautiful thing. I also agree that 3rd and 4th floors get a pass, 2nd floor will require them, based on the first condition.

 

[FM William Burns]

Ironically I had to deal with this yesterday with a new hotel occupancy and the easiest solution was to change the smoke detection system bases and switch the SD's with combos and adjust the programing. Glad I read the thread yesterday........Thanks MT!