Carrier 58MEC - Manual (Page 2)

2
Installing and servicing heating equipment can be hazardous due to
gas and electrical components.
Only trained and qualified
service agency personnel should install, repair, or service
heating equipment. Untrained personnel can perform basic
maintenance functions described in User’s Information
Manual such as cleaning and replacing air filters. All other
operations must be performed by trained service personnel. When
working on heating equipment, observe precautions in the
literature, on tags, and on labels attached to or shipped with the
unit and other safety precautions that may apply.
Follow all safety codes including the current edition of the
National Fuel Gas Code (NFGC) NFPA 54/ANSI Z223.1 in the
USA, CSA B149.1--05 National Standard of Canada, Natural Gas
and Propane Installation Codes (NSCNGPIC) in Canada, and the
Installation Standards, Warm Air Heating and Air Conditioning
Systems (NFPA 90B) ANSI/NFPA 90B. Wear safety glasses and
work gloves. Have a fire extinguisher available during start--up and
adjustment procedures and service calls.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to
furnace.
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous
operation.
CAUTION
!
GENERAL
This furnace can be installed as a direct vent (2--pipe) or non--direct
vent (1--pipe) condensing gas furnace. These instructions are
written as if the furnace is installed in an upflow application. An
upflow furnace application is where the blower is located below
the combustion and controls section of the furnace, and
conditioned air is discharged upward. Since this furnace can be
installed in any of the 4 positions shown in Fig. 2, you may need to
revise your orientation to component location accordingly.
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REGISTERED
ISO 9001:2000
CERTIFIED
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U L T R A H I G H E F F I C I E N C Y
G A S F U R N A N C E
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A05079
Fig. 1 -- Multipoise Furnace in Upflow Orientation
UPFLOW
DOWNFLOW
HORIZONTAL
LEFT
AIRFLOW AIRFLOW
AIRFLOW
AIRFLOW
HORIZONTAL
RIGHT
A05085
Fig. 2 -- Multipoise Orientation
ELECTROSTATIC DISCHARGE (ESD)
PRECAUTIONS
UNIT DAMAGE HAZARD
Failure to follow this caution may damage furnace
components.
Electrostatic discharge can affect electronic components.
Take precautions during furnace installation and servicing
to protect the furnace electronic control. Precautions will
prevent electrostatic discharges from personnel and hand
tools which are held during the procedure. These
precautions will help to avoid exposing the control to
electrostatic discharge by putting the furnace, the control,
and the person at the same electrostatic potential.
CAUTION
!
58ME
C