Codes And Standards - Carrier N96MSN Installation, Start-Up, Operating And Service And Maintenance Instructions

N96MSN: Installation, Start-up, Operating and Service and Maintenance Instructions
Fig. 3 – Freeze Protection and Return Air Temperature
The furnace should be sized to provide 100 percent of the design heating
load requirement plus any margin that occurs because of furnace model
size capacity increments. None of the furnace model sizes can be used if
the heating load is 12,000 BTU or lower. Use Air Conditioning
Contractors of America (Manual J and S); American Society of Heating,
Refrigerating, and Air-Conditioning Engineers; or other approved
engineering method to calculate heating load estimates and select the
furnace. Excessive oversizing of the furnace may cause the furnace
and/or vent to fail prematurely, customer discomfort and/or vent
freezing.
Failure to follow these guidelines is considered faulty installation and/or
misapplication of the furnace; and resulting failure, damage, or repairs
may impact warranty coverage.
For accessory installation details, refer to the applicable instruction
literature.
NOTE: Remove all shipping materials, loose parts bag, and literature
before operating the furnace. See
Table 3 – Loose Parts Bag
DESCRIPTION
Outlet Restrictor Plate (provided with 26K and 40K
BTUh furnaces only; see Note)
Air Intake Pipe Flange
Vent Pipe Flange
Pipe Flange Gaskets
Sharp Tip Screws (Vent and Inlet Flanges)
Vent Pipe Coupling
Vent Pipe Coupling Clamps
Pressure Switch Tube
Rubber Drain Elbow
Drain Tube Clamps
1/2-in. CPVC to 3/4-in. PVC Pipe Adapter
Gas Line Grommet
Junction Box Cover
Junction Box Base
Green Ground Screw
Blunt Tip Screws (Junction Box)
Thermostat Wire Grommet
Drain Extension Tube (Z-pipe) (Provided separately in
furnace)
NOTE: The 26K and 40K models are the only furnaces that receive the
outlet restrictor in loose parts bag. See Maximum Equivalent Vent
Length Table for usage.
WARNING
!
FIRE HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
Do not install the furnace on its back or hang furnace with control
compartment facing downward. Safety control operation will be
adversely affected. Never connect return-air ducts to the back of the
furnace. See Fig. 4.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 3.
QUANTITY
1
1
1
2
10
1
2
1
1
4
1
1
1
1
1
3
1
1
A150573
Fig. 4 – Prohibited Installations
FIRE, INJURY OR DEATH HAZARD
Failure to follow this warning could result in personal injury, death
and/or property damage.
When the furnace is installed in a residential garage, the burners and
burner ignition devices must be located at least 18 in. (457 mm) above
the floor. The furnace must be located or protected to avoid damage by
vehicles. When the furnace is installed in a public garage, airplane
hangar, or other building having a hazardous atmosphere, the furnace
must be installed in accordance with the current edition of NFPA
54/ANSI Z223.1 or CAN/CSA B149.2. See
Fig. 5 – Installation in a Garage

CODES AND STANDARDS

Follow all national and local codes and standards in addition to these
instructions. The installation must comply with regulations of the
serving gas supplier, local building, heating, plumbing, and other codes.
In absence of local codes, the installation must comply with the national
codes listed below and all authorities having jurisdiction.
In the United States and Canada, follow all codes and standards for the
following:
Safety
• Current edition of US: National Fuel Gas Code NFPA 54/ANSI
Z223.1 and the Installation Standards, Warm Air Heating and Air
Conditioning Systems ANSI/NFPA 90B
• A manufactured (Mobile) home installation must conform with the
Manufactured Home Construction and Safety Standard, Title 24 CFR,
Part 3280, or when this standard is not applicable, the Standard for
Manufactured Home Installation (Manufactured Home Sites,
Communities,
CAN/CSA-Z240, MH Series Mobile Homes
• CANADA: Current edition of National Standard of Canada, Natural
Gas and Propane Installation Code (NSCNGPIC) CAN/CSA B149.1
6
WARNING
!
Fig. 5.
18-IN. (457.2 mm)
MINIMUM TO BURNERS
and Set-Ups), ANSI/NCS
A12182
A93044
A225.1, and/or