507271-02
Page 34 of 52
Issue 1621
Electrical
ELECTROSTATIC DISCHARGE (ESD)
Precautions and Procedures
Electrostatic discharge can affect electronic components.
Take precautions during furnace installation and service
to protect the furnace’s electronic controls. Precautions
will help to avoid control exposure to electrostatic
discharge by putting the furnace, the control and the
technician at the same electrostatic potential. Neutralize
electrostatic charge by touching hand and all tools on
an unpainted unit surface, such as the gas valve or
blower deck, before performing any service procedure.
CAUTION
The unit is equipped with a field makeup box on the left hand
side of the cabinet. A field-provided make-up box can be
installed on the exterior of the right side of the furnace to
facilitate installation. Seal unused openings on left side with
plugs removed from right side. Secure the excess wire to
the existing harness to protect it from damage.
Refer to Figure 55 for field wiring and Figures 56 or 57 for
schematic wiring diagram and troubleshooting.
The power supply wiring must meet Class I restrictions.
Protected by either a fuse or circuit breaker, select circuit
protection and wire size according to unit nameplate.
NOTE:
Unit nameplate states maximum current draw.
Maximum Over-Current Protection allowed is 15 AMP.
Holes are on both sides of the furnace cabinet to facilitate
wiring.
Install a separate (properly sized) disconnect switch near
the furnace so that power can be turned off for servicing.
Before connecting the thermostat check to make sure the
wires will be long enough for servicing at a later date. Make
sure that thermostat wire is long enough to facilitate future
removal of blower for service.
Complete the wiring connections to the equipment. Use the
provided unit wiring diagram and the field wiring diagram
shown in Figure 55. Use 18 gauge wire or larger that is
suitable for Class II rating for thermostat connections.
Electrically ground the unit according to local codes or,
in the absence of local codes, according to the current
National Electric Code (ANSI/HFPA No. 70) for the USA
and current Canadian Electric Code Part 1 (CSA standard
C22.1) for Canada. A green ground wire is provided in the
field makeup box.
NOTE:
The gas furnace contains electronic components
that are polarity sensitive. Make sure that the furnace is
wired correctly and is properly grounded.
Accessory Terminals
One line voltage “EAC” 1/4” spade terminal is provided on
the furnace control board. Any accessory rated up to one
amp can be connected to this terminal with the neutral leg
of the circuit being connected to one of the provided neutral
terminals. If an accessory rated at greater than one amp is
connected to this terminal, it is necessary to use an external
relay. See Figure 58 for control board configuration. This
terminal is energized when the indoor blower is operating.
Figure 53
Exterior Make-Up Box
(Field Provided Right Side)
Figure 52
Interior Make-Up Box
(Factory - Installed Left Side)
Summary of Contents for 92G1DF-P
Page 17: ...507271 02 Page 17 of 52 Issue 1621 A95DF 95G1DF and A93DF 92G1DF Table 7 ...
Page 18: ...507271 02 Page 18 of 52 Issue 1621 A95DF 95G1DF and A93DF 92G1DF Table 8 ...
Page 31: ...507271 02 Page 31 of 52 Issue 1621 Figure 49 Trap Drain Assembly Using 1 2 PVC or 3 4 PVC ...
Page 36: ...507271 02 Page 36 of 52 Issue 1621 Figure 56 Typical Wiring Diagram For A93DF 92G1DF ...
Page 37: ...507271 02 Page 37 of 52 Issue 1621 Typical Wiring Diagram Figure 57 For A95DF 95G1DF ...
Page 50: ...507271 02 Page 50 of 52 Issue 1621 Start Up Performance Check List ...
