SYSTEM REQUIREMENTS
REFRIGERANT CHARGE
ELECTRICAL REQUIREMENTS
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.
Unit Size (BtuH)
Liquid Line in (mm)
Suction/Gas Line in (mm)
18,000
Port A
1/4 (6)
3/8 (9.5)
Port B
1/4 (6)
3/8 (9.5)
Port A
1/4 (6)
3/8 (9.5)
24,000
Port B
1/4 (6)
3/8 (9.5)
Port C
1/4 (6)
3/8 (9.5)
Port A
1/4 (6)
3/8 (9.5)
30,000
Port B
1/4 (6)
3/8 (9.5)
Port C
1/4 (6)
3/8 (9.5)
Port D
1/4 (6)
3/8 (9.5)
Port A
1/4 (6)
3/8 (9.5)
36,000
Port B
1/4 (6)
3/8 (9.5)
Port C
1/4 (6)
3/8 (9.5)
Port D
1/4 (6)
3/8 (9.5)
Port E
1/4 (6)
3/8 (9.5)
Port A
1/4 (6)
3/8 (9.5)
Port B
1/4 (6)
3/8 (9.5)
42,000
Port C
1/4 (6)
3/8 (9.5)
Port D
1/4 (6)
3/8 (9.5)
Port E
1/4 (6)
3/8 (9.5)
Unit Size
Max Total Pipe
Min Equivalent
Max Equivalent
Max Elev btwn
Max Elev btwn
(BtuH)
Length ft(m)
Pipe Length ft(m)
Pipe Length ft(m)
IND Units ft(m)
IND&OTDUnits ft(m)
18,000
65 (20)
10 (3)
33 (10)
33 (10)
33 (10)
24,000
197 (60)
10 (3)
65 (20)
33 (10)
33 (10)
30,000
230 (70)
10 (3)
82 (25)
25 (7.5)
49 (15)
36,000
246 (75)
10 (3)
82 (25)
25 (7.5)
49 (15)
42,000
246 (75)
10 (3)
82 (25)
25 (7.5)
49 (15)
Unit Size
Voltage
Min Circuit
Max Overcurrent
Main Power
(BtuH)
Amps (MCA)
Protection (MOP)
Wire Size (AWG)**
18,000
208/230v - 1ph 60hz
15
25
12
24,000
208/230v - 1ph 60hz
21
35
8
30,000
208/230v - 1ph 60hz
19
30
10
36,000
208/230v - 1ph 60hz
21
35
8
42,000
208/230v - 1ph 60hz
24
40
8
**Main power wire from electrical panel to outdoor unit. AWG based on 240VAC Single Phase, 100 ft. distance 1-way, max. 5% allowable voltage drop.
REFRIGERANT PIPE LENGTHS
Unit Size
Refrigerant
Factory System
Max Pipe Length w/out
Additional
(BtuH)
Type
Charge oz(kg)
adding Refrig ft(m)
Charge oz/ft (g/m)
18,000
R-410A
56.5 (1.6)
33 (10)
0.2 (20)
24,000
R-410A
77.6 (2.2)
98 (30)
0.2 (20)
30,000
R-410A
98.7 (2.8)
131 (40)
0.2 (20)
36,000
R-410A
128.8 (3.65)
131 (40)
0.2 (20)
42,000
R-410A
128.8 (3.65)
131 (40)
0.2 (20)
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