Safety
5
Important Regulatory and Installation Requirements
Codes
The installation of this unit shall be in
accordance with local codes or, in the
absence of local codes, use
CAN/CSA-B149.1 or .2 Installation
Codes for Gas Burning Appliances for
Canada. For U.S. installations use the
National Fuel Gas Code ANSI Z223.1.
Always use latest editions of codes.
In Canada all electrical wiring is to be
done in accordance with the latest
edition of CSA C22.1 Part 1 and/or
local codes. In the U.S. use the
National Electrical Code ANSI/NFPA
70. The heating contractor must also
comply with both the Standard for
Controls and Safety Devices for
Automatically Fired Boilers,
ANSI/ASME CSD-1, and the Installation
Code for Hydronic Heating Systems,
CSA B214-01, where required by the
authority having jurisdiction.
Leave all literature at the installation
site and advise the system
operator/ultimate owner where the
literature can be found. Contact
Viessmann for additional copies.
This product comes with several
safety instruction labels attached.
Do not remove!
Contact Viessmann immediately if
replacement labels are required.
For installations in the Commonwealth of Massachusetts,
the following local
requirements apply in addition to all other applicable NFPA requirements:
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 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”
.
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