Installation manual

18 RIVA PLUS MANUAL

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 satisﬁ ed:

1. If there is not one already 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).

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

andshall:

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 identiﬁ cation plate shall be mounted at the exterior of the building, four feet

directly above the location of 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”.

(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 satisﬁ ed:

1. If there is not one already 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).

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.

9. Venting Requirements for the State

of Massachussetts