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INSTALLATION INSTRUCTIONS
Step 1 - Preparation
A. Before installing the indoor unit, determine if a refrigerant leak sensor is required.
Refer to the outdoor unit installation instructions for calculating the total refrigerant charge. Measure the area of
the space that will be conditioned by the indoor unit, and refer to the below table :
lbs
Maximum Charge
oz
Minimum Room Size
ft²
If your room size is smaller than the minimum room size listed above, a refrigerant leak sensor may be required.
See below table:
Maximum Refrigerant Charge
Minimum Room Size - Single Zone
Outdoor Unit
Minimum Room Size - Multi Zone
Outdoor Unit
Installation in rooms smaller than the minimum sizes listed above are not allowed based on the standard of
UL60335-2-40 Edition 4².
1: Calculated based on a minimum install height of 5 ft 11 inches (1.8m) measured from the floor to the bottom of
the indoor unit.
2: UL60335-2-40 Edition 4 has been adopted by majority of state and local codes. A limited number of
local and state codes may require compliance to UL 60335-2-40 Edition 3. Please refer to our website at
GEAppliancesAirandWater.com for guidance on installations in those localities.
Note: Additional room area may be needed for different installation altitudes. Please use Altitude Adjustment
Factor table below by multiplying minimum room size by the altitude adjustment factor based on install altitude.
Altitude (m)
Altitude (ft)
Altitude (m)
Altitude (ft)
B. If leak sensor is not needed, make
sure to flip dip switch 3-2 to OFF
(see right picture).
Missing this step will result getting error code bA.
If leak sensor is needed, please go to step C.
31-5001074 Rev. 0
Highwall without Refrigerant Leak Sensor Installed¹
3.9
62.4
No restriction
Highwall with Refrigerant Leak Sensor Field-Installed¹
lbs
3.9
4.0
oz
62.4
No
ft²
restriction
No
ft²
restriction
Altitude Adjustment Factor
0
200
0
660
Adj. Factor
1
1
1600
1800
5250
5910
Adj. Factor
1.12
1.15
4
4.5
5
5.5
6
64
72
80
88
96
74
83
92
101
110
4.5
5.0
5.5
6.0
64
72
80
88
96
104
74
83
92
101
110
120
60
68
75
83
90
400
600
800
1000
1310
1970
2620
3280
1
1
1.02
1.05
2000
2200
2400
2600
6560
7220
7870
8530
1.18
1.21
1.25
1.28
6.5
7
7.5
8
8.5
104
112
120
128
136
120
129
138
147
166
6.5
7.0
7.5
8.0
8.5
112
120
128
136
129
138
147
156
98
105
113
120
128
1200
1400
1600
3940
4590
5250
1.04
1.1
1.12
2800
3000
3200
9190
9810
10500
1.32
1.36
1.4
9
9.5
10
144
152
160
186
208
230
9.0
9.5
10.0
144
152
160
165
175
184
135
143
150
13
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