Nordyne TA-060C-08A, Руководство по установке

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27
Line Voltage Wiring
The line voltage (115 volt) to the furnace must
be supplied from a dedicated branch circuit
containing the correct fuse or circuit breaker for
the furnace. (See Table 10.) An electrical
disconnect must be installed to be readily ac-
cessible from and located within sight of the
furnace. (See the Wiring Diagram label in the
furnace and Figure 35.)
! CAUTION:
Label all wires prior to disconnection
when servicing controls. Wiring errors
can cause improper and dangerous op-
eration.
Verify proper operation after servicing.
The furnace cabinet must have an uninter-
rupted, unbroken ground to minimize injury
should an electrical fault condition occur.
The
controls used in this furnace require an
earth ground to operate properly.
Accept-
able methods for grounding are electrical wire
or conduit approved for electrical ground ser-
vice. Do not use gas piping as an electrical
ground.
IMPORTANT NOTE:
Proper line voltage polarity must be main-
tained in order for the control system to
operate correctly. Verify that the incoming
neutral line is connected to the white wire
and the incoming “hot” line is connected
to the black wire. These furnaces will not
operate unless the polarity and ground are
properly connected. See Figure 26.
R C Y G W
A/C Condensing Unit
Condensing Unit
Control Box
Room
Thermostat
Flame Signal Light
(Yellow)
Status Light
(Red)
60 90 120 180
Blower Off
Timing
TWIN
3 Amp
Fuse
COM
24 V
HUM Neutrals
Low Voltage
Connections
4 1
5 2
6 3
7
8
9
4
5
6
1
2
3
EAC
HUM
M1 M2 M3
HEAT
L1
XFMR
Unused Motor Leads
EAC
R Y G W
Connect
R & W
For
Heating
Only
FIELD WIRING
NOTE: The "Y"
terminal on the
UTEC control board
must be connected
to the thermostat
for proper cooling
mode operation.
COOL
Figure 27. Low Voltage Field, Four-wire Heating/Cooling Applications
Figure 26. Line Voltage Field Wiring
Field Supplied Disconnect
Within Sight of Furnace
Field Supplied
Panel Connector
Field Supplied
Fused Service
Panel
Black (Hot)
White (Neutral)
Green or Bare
(Ground)
Black
White
Black
White
Black
White
Field Line Voltage
Wiring
Factory Line
Voltage Wiring
Ground Ground
Ground
Junction Box (may be internal
or external to the furnace). These
connections can be made in the
field supplied disconnect at the
furnace.