T&C TC36ST, Installation And Operating Instructions Manual

4      TC36.CSTE 

082406-40

IMPORTANT NOTE FOR THE COMMONWEALTH OF MASSACHUSETTS

From Massachusetts Rules and Regulations 248 CMR 5.08:

(a) 

For all side wall horizontally vented gas fuelled equipment installed in every dwelling, building or structure used in 

whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall 
exhaust vent termination is less than seven (7) feet above fi nished grade in the area of the venting, including but not limited to 
decks and porches, the following requirements shall be satisfi ed.

1. 

INSTALLATION OF CARBON MONOXIDE DETECTORS.  At the time of installation of the side wall horizontal vented 

gas fuelled equipment, the installing plumber or gasfi tter shall observe that a hard wired carbon monoxide detector with an 
alarm and battery back-up is installed on the fl oor level where the gas equipment is to be installed, in addition, the installing 
plumber or gasfi tter shall observe that a battery operated or hard-wired carbon monoxide detector with an alarm is installed on 
each additional level of the dwelling, building or structure served by the side wall horizontal vented gas fuelled equipment.  It 
shall be the responsibility of the property owner to secure the services of qualifi ed licensed professionals for the installation of 
hard-wired carbon monoxide detectors.  

a. 

In the event that the side wall horizontally vented gas fuelled equipment is installed in a crawl space or an attic, the 

hard-wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent fl oor level.

b. 

In the event that the requirements of this subdivision cannot be met at the time of completion of installation, the owner 

shall have a period of thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) 
day period, a battery operated carbon monoxide detector with an alarm shall be installed.

2. 

APPROVED CARBON MONOXIDE DETECTORS.  Each carbon monoxide detector as required in accordance with 

the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed as IAS certifi ed.

3. 

SIGNAGE.  A metal or plastic identifi cation plate shall be permanently mounted to the exterior of the building at a 

minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas 
fuelled heating appliance or equipment.  The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT 
DIRECTLY BELOW.  KEEP CLEAR OF ALL OBSTRUCTIONS”.

4. 

INSPECTION.  The state or local gas inspector of the side wall horizontally vented gas fuelled equipment shall not 

approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in 
accordance with the provisions of 248 CMR 5.089(2)(a) 1 through 4.

(b) 

EXEMPTIONS.  The following equipment is exempt from 248 CMR 5.089(2)(a) 1 through 4.

1. 

The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of 

NFPA 54 as adopted by the Board; and 
2. 

Product Approved side wall horizontal vented gas fuelled equipment installed in a room or structure separate from the 

dwelling, building or structure used in whole or in part for residential purposes.

(c) 

MANUFACTURER REQUIREMENTS – GAS EQUIPMENT VENTING SYSTEM PROVIDED.  When the manufac-

turer of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system 
components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the venting 
system shall include: 
1. 

Detailed instructions for the installation of the venting system design or the venting system components; and

2. 

A complete parts list for the venting system design or venting system.

(d) 

MANUFACTURER REQUIREMENTS – GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED.  When the manu-

facturer of a Product Approved side wall horizontally vented gas fuelled equipment does not provide the parts for venting the 
fuel gases, but identifi es “special venting systems”, the following requirements shall be satisfi ed by the manufacturer.
1. 

The referenced “special venting system” instructions shall be included with the appliance or equipment installation 

instructions; and
2. 

The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall 

include a parts list and detailed installation instructions.

(e) 

A copy of all installation instructions for all Product Approved side wall horizontally vented gas fuelled equipment, all 

venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance 
or equipment at the completion of the installation.