Special Instructions; Electrical Connections - Goodman ACNF18 Series Installation Instructions Manual

SPECIAL INSTRUCTIONS

This airhandler comes equipped with an evaporator coil with a
check style flowrator assembly, an indoor blower and all necessary
internal electrical wiring. For most installations with matching
applications, no change to the flowrator orifice is required.
However, in mix-matched applications, a flowrator change may be
required. See the piston kit chart or consult your local distributor
for details regarding mix-matched orifice sizing. If the mix-match
application requires a different piston size, change the piston in the
distributor on the indoor coil before installing the coil and follow
the procedure shown below.
T
HE EVAPORATOR COIL IS SHIPPED FROM THE FACTORY WITH
120 PSI
APPROXIMATELY
WHEN RELIEVING PRESSURE
IMPORTANT NOTE: Torch heat required to braze tubes of various
sizes is proportional to the size of the tube. Tubes of smaller size
require less heat to bring the tube to brazing temperature before
adding brazing alloy. Applying too much heat to any tube can melt
the tube. Service personnel must use the appropriate heat level
for the size of the tube being brazed.
NOTE: The use of a heat shield when brazing is recommended to
avoid burning the serial plate or the finish on the unit. Heat trap
or wet rags should be used to protect heat sensitive components
such as service valves and TXV valves.
CAUTION
T
O PREVENT FEEDER TUBE DAMAGE
¾"
WITH A OPEN END WRENCH WHEN REMOVING OR REPLACING THE
13/16" .
FLARE NUT
1. Remove the valve core to allow high pressure tracer gas to
escape. No gas indicates a possible leak.
2. Remove the 13/16" flare nut and tailpiece.
3. Unsweat the access fitting on the tailpiece
4. Remove the check piston to verify it is correct and then re-
place the piston. See piston kit chart in instructions.
5. Unsweat the cap on the suction line.
6. Slide the 13/16" flare nut over the tailpiece.
7. Braze tailpiece to the lineset liquid tube.
8. Insert the suction line into the connection, slide the insulation
at least 18" away from the braze joint. Braze suction line.
9. AFTER THE TAILPIECE HAS COOLED, confirm position of the
white Teflon® seal and hand tighten the 13/16" flare nut.
10. Torque the 13/16" flare nut to 7-25 ft-lbs. or tighten 1/6 of a
turn. Do not overtighten.
CAUTION
E
XCESSIVE TORQUE CAN CAUSE ORIFICES TO STICK
PROPER TORQUE SETTINGS WHEN TIGHTENING ORIFICES
11. Replace suction line insulation.
12. After installation, evacuation and charging of the low side is
complete, check fittings for leaks.
NOTE: With the piston in the distributor, the seal end should point
inside the distributor body and should not be seen when looking
into the end of distributor. Make sure the piston is free to rotate,
and move up and down in the distributor body.
. U
TRACER GAS CHARGE SE CAUTION
.
,
HOLD THE DISTRIBUTOR BODY
. U
.

ELECTRICAL CONNECTIONS

HIGH VOLTAGE!
D ALL
ISCONNECT
POWER SOURCES MAY BE PRESENT
MAY CAUSE PROPERTY DAMAGE
DEATH DUE TO ELECTRIC SHOCK
NEC CEC
WITH OR
WIRES COULD CAUSE POOR EQUIPMENT PERFORMANCE
EQUIPMENT DAMAGE OR FIRE
Determine the availability of sufficient power to operate the unit.
The voltage at the power supply must correspond to the unit RATED
VOLTAGE REQUIREMENT.
Determine wire sizes from the unit nameplate ampacity and
in accordance with the National Electrical Code. Wiring should
never be sized smaller than is recommended by either of these
two sources.
The unit must be permanently grounded in accordance with local
codes, or in the absence of local codes, with the N.E.C. ANSI/NFPA
NO. 70-1987 or latest edition in the U.S.A.
Internal Wiring
A diagram of the internal wiring of this unit is located under the
electrical box cover. If any of the original wire as supplied with the
appliance must be replaced, the wire gauge and insulation must
be same as original wiring.
Transformer is factory wired for 230 volts on 208/ 230 volt models.
See wiring diagram for 208 volt wiring. For 208V operation, move
the red wire lead from 240V to 208V tap.
MODEL
ALL MODELS
Make the following high and low voltage connections at either
location to wire units.
High Voltage Wiring
This unit is designed for Single phase 208/230 Volt only. Connect the
two leads to terminals L1 and L2 on the disconnect in the electrical
control section, using wire sizes specified in Table 1.
Low Voltage Wiring
For ACNF18, ACNF24 and ACNF30 models, refer to Figure 6 for
cooling unit with electric heat and refer to Figure 7 for heat pump
with electric heat.
NOTE: HPSK-01 Heat Pump Shut-Off Relay Kit (C.R.I.) must be used
when ACNF with electric heat installed with heat pump.
SE THE
5
. M
POWER BEFORE SERVICING
. F
AILURE TO DO SO
,
PERSONAL INJURY OR
. W
IRING MUST CONFORM
. U
AND ALL LOCAL CODES NDERSIZED
.
THERMOSTAT HEAT
ANTICIPATOR SETTING
0.2
Table 4
ULTIPLE
,