4
SYSTEM REQUIREMENTS
Piping Requirements
REFRIGERANT CHARGE
ELECTRICAL REQUIREMENTS
PIPE SIZE
in (mm)
Notes: Insulate both refrigerant lines, separately.
Notes:
1) System must be on a single dedicated circuit.
2) Main power is supplied to the outdoor unit.
3) Use table above to size over current protection.
4) Follow all local building codes and NEC (National Electrical Code) regulations.
Interconnecting Cable: Recommended cable - 14/4 AWG stranded bare copper conductors THHN 600V unshielded wire
Note: Use shield cable if installation is in close proximity of RF and EMI transmitting devices.
Condensate Drain Size: 5/8-in OD 7/16-in ID
Note: Insulate condensate drain hose to prevent sweating and possible water damage.
Unit Size
Voltage
Liquid Line
Suction/Gas Line
(BtuH)
9,000
115v - 1ph 60hz
1/4 (6)
3/8 (9.5)
12,000
115v - 1ph 60hz
1/4 (6)
3/8 (9.5)
9,000
208/230v - 1ph 60hz
1/4 (6)
3/8 (9.5)
12,000
208/230v - 1ph 60hz
1/4 (6)
3/8 (9.5)
18,000
208/230v - 1ph 60hz
1/4 (6)
1/2 (12)
24,000
208/230v - 1ph 60hz
1/4 (6)
1/2 (12)
Unit Size
Voltage
Min Line
Max Line
Max Elevation
(BtuH)
Length
Length
(ID over OD)
9,000
115v - 1ph 60hz
10 (3)
66 (20)
33 (10)
12,000
115v - 1ph 60hz
10 (3)
66 (20)
33 (10)
9,000
208/230v - 1ph 60hz
10 (3)
50 (15)
33 (10)
12,000
208/230v - 1ph 60hz
10 (3)
50 (15)
33 (10)
18,000
208/230v - 1ph 60hz
10 (3)
82 (25)
33 (10)
24,000
208/230v - 1ph 60hz
10 (3)
82 (25)
33 (10)
**Main power wire from electrical panel to outdoor unit.
*Precharge amount for up to 25-ft of refrigerant pipe.
REFRIGERANT LINE LENGTHS
ft (m)
Unit Size
Voltage
Refrigerant
Factory System
Additional
(BtuH)
Type
Charge oz (kg)*
Charge oz/ft (g/m)
9,000
115v - 1ph 60hz
R410A
35.3 (1.0)
0.2 (20)
12,000
115v - 1ph 60hz
R410A
35.3 (1.0)
0.2 (20)
9,000
208/230v - 1ph 60hz
R410A
26.1 (0.74)
0.2 (20)
12,000
208/230v - 1ph 60hz
R410A
35.3 (1.0)
0.2 (20)
18,000
208/230v - 1ph 60hz
R410A
45.9 (1.3)
0.2 (20)
24,000
208/230v - 1ph 60hz
R410A
54.7 (1.6)
0.2 (20)
Unit Size
Voltage
Min Circuit
Max Overcurrent
Main Power
(BtuH)
Amps (MCA)
Protection (MOP)
Wire Size (AWG)**
9,000
115v - 1ph 60hz
13
20
12
12,000
115v - 1ph 60hz
15
25
10
9,000
208/230v - 1ph 60hz
10
15
14
12,000
208/230v - 1ph 60hz
10
15
14
18,000
208/230v - 1ph 60hz
15
25
10
24,000
208/230v - 1ph 60hz
16
25
10
