13 PB
SPECIFICATIONS
Room Size Restriction
Minimum room size (R-454B refrigerant) is determined by total refrigerant charge in system. Use this chart to determine the minimum room size the indoor head can
be installed in.
Height of installation(ft and inches)
6’ 6' 6" 7' 2" 7' 10" 8' 2"
Refrigerant charge (oz) Room (sq ft)
64 oz. 71 64 58 53 51
65-71 oz. 78 71 64 59 57
72-77 oz. 86 78 71 65 62
78-85 oz. 94 85 77 71 68
86-92 oz. 102 92 83 77 74
93-99 oz. 110 99 90 82 79
100-106 oz. 117 105 96 88 85
Prior to installing the unit use the chart below to determine the total refrigerant charge for the unit. If the total charge is less than 64 oz. there is no room size
restriction. If the total charge is over 64 oz. refer to the chart above. Use the total charge, the height of the bottom of the unit, and the chart above to determine the
minimum square footage of the room the indoor unit can be installed in. If rooms are connected by opening that people can walk through but with no door installed,
those areas can be considered one space.
-
Pre-Charge w/ 25 ft of
line set
Charge w/ 25-50 ft of
line set
Charge w/ 50-75 ft of
line set
Charge- w/ add 75-100 ft
of line set
Indoor Unit Model Outdoor Unit Model Charge Oz
FAHFW09A3A FPHSR09A3B 35.3 40.8 46.3 N/A
FAHFW12A3A FPHSR12A3B 38.1 43.6 49.1 N/A
FAHFW18A3A FPHSR18A3B 52.9 58.4 63.9 69.4
FAHFW24A3A FPHSR24A3B 70.6 78.6 86.6 94.6
When adding refrigerant to the system for additional line set, refer to the model nameplate and the outdoor unit installation instructions for proper charge amount.
Table 202
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