6.1 GENERAL INFORMATION & GROUNDING
Check the electrical supply to be sure that it meets the values specified on the unit
nameplate and wiring label.
Power wiring, control (Iow voltage) wiring, disconnect switches and over current
protection must be supplied by the installer. Wire size should be sized per require-
ments.
CAUTION
All field wiring must USE COPPER CONDUCTORS ONLY and be in accordance
with Local, National Fire, Safety & Electrical Codes. This unit must be grounded
with a separate ground wire in accordance with the above codes.
The complete connection diagram and schematic wiring label is located on the inside
surface of the unit service access panel and this instruction.
1. Install the proper size weatherproof disconnect switch outdoors and within sight of
the unit.
2. Remove the screws at the side of the corner panel. Slide corner panel down and
remove from unit. See Fig. 9.
3. Run power wiring from the disconnect switch to the unit.
4. Route wires from disconnect through power wiring opening provided and into the
unit control box.
5. Install the proper size time-delay fuses or circuit breaker, and make the power
supply connections.
6. Energize the crankcase heater if equipped to save time by preheating the compres-
sor oil while the remaining installation is completed.
6.2 FIELD CONNECTIONS POWER WIRING
6.0 ELECTRICAL CONNECTIONS
14
NOTE:
When changing the motor, remove top cover first.
TABLE 3: LIQUID LINE SIZE (R410A)
25 50 75 100 125 150
1/4
23
N/A
N/A
N/A
N/A
N/A
5/16
25
36
29
23
16
9
3/8*
25 50 60 60 40 30
Rotary
3/8*
25
30
30
24
5/16
25
50
37
22
7
N/A
3/8*
25 50 60 60 40 30
3/8*
25 46 38 30 22 15
1/2
25 50 56 55 40 30
3/8*
25 50 56 44 32 20
1/2
25 50 60 60 40 30
Liquid Line Size
Outdoor unit above or below indoor coil
3/8"
3/8"
3 Ton
Total Equivalent Length - Feet
Model Size
Line Size
Connection And
Line Size
(Inch O.D.)
Maximum Vertical Separation - Feet
Line Size
Connection Size
(Inch O.D.)
Compressor
Type
Scroll
2 Ton
3/8"
NOTES:
* Standard line size
N/A Application not recommended.
Scroll
Scroll
Scroll
4 Ton
5 Ton
3/8"
N/A N/A
