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1.
Installation of carbon monoxide detectors - At
the time of installation of the side wall horizontal
vented gas fueled equipment, the installing plumber
or gasfitter shall observe that a hard wired carbon
monoxide detector with an alarm and battery back-up
is installed on the floor level where the gas equipment
is to be installed. In addition, the installing plumber
or gasfitter 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 fueled equipment. It shall be
the responsibility of the property owner to secure the
services of qualified licensed professionals for the
installation of hard wired carbon monoxide detectors.
a.
In the event that the side wall horizontally vented
gas fueled 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 floor level.
b. In the event that the requirements of this
subdivision can not 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 and IAS certified.
Signage - A metal or plastic identification plate
3.
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 fueled
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".
Inspection - The state or local gas inspector of the
4.
side wall horizontally vented gas fueled 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 5.08(2)(a)1 through 4.
Inspection
Immediately after receiving the unit, inspect for possible
damage during transit. If damage is evident, note the
Installation Manual: Z8ES Single-Stage Standard ECM Residential Gas Furnaces (Non-condensing Multi-position Standard
extent of the damage on the carrier's freight bill. Make
a separate request for inspection by the carrier's agent
in writing. Also, before installation, check the unit for
any screws or bolts that loosened in transit. You do not
need to remove any shipping or spacer brackets from the
interior of this unit.
Furnace location and clearances
Choose a location to install the furnace using the
following guidelines:
•
Where a minimum amount of air intake or vent piping
and elbows is required
•
As centralized with the air distribution as possible
•
Where adequate combustion air is available,
particularly when the appliance is not using outdoor
combustion air
•
Where the furnace does not interfere with adequate
air circulation in the confined space
Installation in freezing temperatures
•
Install the furnace in an area where ventilation
facilities provide for safe limits of ambient
temperature under normal operating conditions.
Improper installation in a room with an ambient
temperature below 32ºF (0.0°C) such as a
garage or attic, could create a hazard, resulting in
damage, injury, or death.
•
Do not allow the return air temperature to be below
55º F (13°C) for extended periods. To do so may cause
condensation to occur in the main heat exchanger,
leading to premature heat exchanger failure.
Clearances for access or service:
Provide ample clearances for easy access to the unit. The
following are the minimum clearances required:
•
24 in. (61 cm) between the front of the furnace and an
adjacent wall or another appliance, to provide access
for servicing and cleaning
•
18 in. (46 cm) at the side where access is required for
passage to the front when servicing, or for inspection
or replacement of flue or vent connections
In all cases, accessibility clearances take precedence over
clearances for combustible materials where accessibility
clearances are greater.
Installation in a residential garage
When installing a gas-fired furnace in a residential garage,
ensure the burners and the ignition source are at least 18
in. (46 cm) above the floor and the furnace is in a location
that avoids physical damage by vehicles.
Johnson Controls Ducted Systems
WARNING
and Low NOx)
9
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