Biasi Riva Plus Installation And Operation Instructions Manual page 19

9. Venting Requirements for the State
of Massachussetts
The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and
5.00 for installation of through – the – wall vented gas appliances as follows:
(a) 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 satisfied:
1. If there is not one already present, on each floor 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).
2. A carbon monoxide detector shall be located in the room that houses the appliance or equipment and shall:
a. 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;
b. Have battery back-up power;
c. Meet ANSI/UL 2034 Standards and comply with NFPA 720 (2005 Edition);and
d. Have been approved and listed by a Nationally Recognized Testing Laboratory as recognized under
527 CMR.
3. 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.
4. A metal or plastic identification plate shall be mounted at the exterior of the building, four feet directly
above the location of vent terminal. The plate shall be of sufficient size to be easily read from a distance of
eight feet away, and read "Gas Vent Directly Below".
(b) 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 satisfied:
1. If there is not one already present, on each floor 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).
2. A carbon monoxide detector shall:
a. Be located in the room that houses the appliance or equipment;
b. Be either hard-wired or battery powered or both; and
c. Shall comply with NFPA 720 (2005 Edition).
3. 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.
Riva Plus Manual 19