System Requirements - Gree UMAT18HP230V1AF Installation Manual

SYSTEM REQUIREMENTS

PIPE SIZE in (mm)
Unit Size
Liquid
(BtuH)
Line
18,000 1/4 (6)
24,000 3/8 (10)
30,000 3/8 (10)
36,000 3/8 (10)
42,000 3/8 (10)
48,000 3/8 (10)
Notes: Insulate both refrigerant lines, separately.
REFRIGERANT CHARGE
Unit Size
(BtuH)
18,000
24,000
30,000
36,000
42,000
48,000
*Precharge amount for up to 25-ft of refrigerant pipe.
INDOOR UNIT ELECTRICAL REQUIREMENTS
Unit Size
(BtuH)
18,000 208/230v - 1ph 60hz
24,000 208/230v - 1ph 60hz
30,000 208/230v - 1ph 60hz
36,000 208/230v - 1ph 60hz
42,000 208/230v - 1ph 60hz
48,000 208/230v - 1ph 60hz
OUTDOOR UNIT ELECTRICAL REQUIREMENTS
Unit Size
(BtuH)
18,000 208/230v - 1ph 60hz
24,000 208/230v - 1ph 60hz
30,000 208/230v - 1ph 60hz
36,000 208/230v - 1ph 60hz
42,000 208/230v - 1ph 60hz
48,000 208/230v - 1ph 60hz
Communication Cable: Recommended cable - 18/2 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.
Suction/Gas
Line
1/2 (12)
5/8 (15)
5/8 (15)
5/8 (15)
5/8 (15)
5/8 (15)
Refrigerant
Type
R410A
R410A
R410A
R410A
R410A
R410A
Min Circuit
Voltage
Amps (MCA)
Min Circuit
Voltage
Amps (MCA)
REFRIGERANT LINE LENGTHS ft (m)
Min Line Max. Pre-Charge Max Line Max Elevation
Length Line Length
10 (3) 25(7.5)
10 (3) 25(7.5)
10 (3) 25(7.5)
10 (3) 25(7.5)
10 (3) 25(7.5)
10 (3) 25(7.5)
Factory System
Charge oz (kg)*
49.4 (1.4)
77.6 (2.2)
84.7 (2.4)
123.5 (3.5)
130.5 (3.7)
141.1 (4.0)
Max Overcurrent
Protection (MOCP)
1.0
1.5
2.0
2.0
2.0
3.0
Max Overcurrent
Protection (MOCP)
17.0
24.0
24.0
29.0
31.0
45.0
Length
66 (20)
98 (30)
98 (30)
98 (30)
164 (50)
164 (50)
Additional
Charge oz/ft (g/m)
0.3 (30)
0.6 (60)
0.6 (60)
0.6 (60)
0.6 (60)
0.6 (60)
Main Power
Wire Size (AWG)
15
15
15
15
15
15
Main Power
Wire Size (AWG)
25
40
40
45
50
70
(ID over OD)
49 (15)
49 (15)
49 (15)
49 (15)
98 (30)
98 (30)
14
14
14
14
14
14
10
10
10
8
8
6
4