All installations and services must be performed by qualified personnel.
9
G. ELECTRICAL
All wiring must conform to the provisions of local codes or, in the absence of local codes, with the provisions of the National
Electrical Code, "Latest Edition" and this instruction manual. An equivalent type wire must be used if any of the original wire
supplied with the unit needs to be replaced.
Reference Table A for unit electrical characteristics. Bring proper service to the unit through a circuit breaker or fused disconnect
switch, in accordance with local codes. In the case of a single phase 230 VAC unit, the neutral wire should be brought to the unit
in order to provide ground service. A ground wire must be connected to the unit at the screw or pressure connector marked
"ground".
The best fuse size is the smallest fuse that will allow the equipment to operate continuously without any nuisance trips. This type
of fuse will give the equipment maximum protection. A time delay type fuse; such as Fustat® or Fusetron®, will prevent nuisance
trips due to the starting current (locked rotor amps, LRA).
FUSE SIZING - TABLE A
Recommendations
Compressor
Fuse or HACR
Circuit Breaker
Unit Model
Voltage/
Phase/ Hertz RLA
4
LRA
5
Fan
Motor
FLA
Minimum
Circuit
Ampacity
AMPS
Min.
Copper
Wire Size
(AWG)
Min.
AMPS
Max.
AMPS
AC14241B1
208-230/1/60 12.1 56
0.8
15
#14
20
25
AC14301B1
208-230/1/60 13.6 67
0.8
18
#14
20
30
AC14361B1
208-230/1/60 16.4 83
0.8
22
#12
25
35
AC14421B1
208-230/1/60 18.4 95
1.6
25
#10
30
40
AC14481B1
208-230/1/60 20.4 109 1.6
27
#10
30
45
AC14601B1
208-230/1/60 32.1 148 1.6
42
#6
45
70
AC14483B1
208-230/3/60 13.9 88
1.6
19
#14
20
30
AC14603B1
208-230/3/60 19.3 123 1.6
26
#10
30
45
NOTE:
Recommended wire sizes are for copper conductors only.
*Use (as minimum) type "T" or "TW" wire. 60 C.
Local and/or national electrical codes dictate which wire size you must use!
For
example:
1
If a 25 or 30 amp fuse is used, a minimum wire size of 10 AWG must accompany it.
2
If you fuse to maximum sizes, your wire size must be adjusted accordingly.
3
12 AWG wire may be used only with a 20 amp or smaller fuse size.
4
R.L.A.=Compressor running load amps.
5
L.R.A.=Compressor locked rotor amps.
6
F
.L.A.=Full load amps of condenser blower motors.
In the event a fuse blows, investigate for the cause. Do not put in a larger fuse and do not exceed maximum fuse size listed on
name plate. The name plate is located just above the valve connection on the outside surface of the outdoor unit.
NOTICE:
Before the Air Conditioning unit is started, the following points must be checked by the installer and/or electrician
.
1). Check every electrical connection of "PUSH-ON" or "SCREW-ON" type terminals to insure it is secured tightly on its proper
post.
2). Review wiring diagram for proper routing.
3). All wiring must comply with NEC or local codes for wire sizes. Also, it is suggested that the next larger size wire to be used
when long runs in excess of 100 ft. are experienced. Reference the following wiring diagrams when wiring or servicing.
A loose terminal will cause poor flow of electrical power to the compressor and result in very high current draw. This can lead to
blown fuses, burned wires, burned contact points and a premature compressor failure. Each electrical contact has been factory
checked, however, connections may loosen up due to vibration in transit. Please be certain that all electrical connections are tight.
