Home-Resideo HM750 Installation Manual

HM750A1000
33-00289EF—03 4
SIZING
IMPORTANT
The HM750 should only be installed if it has been
sized properly. Do not use square feet when sizing
a humidifier installation. Instead, cubic feet must
be used, since the humidity is filling a volume of
space (width x length x height). Also, take into
consideration the “tightness” of a home’s
construction.
The HM750 produces 11 gallons per day (GPD) when run
on 120 V and 22 GPD when run on 240 V. See Figure 20
for details on configuring the HM750 to run on a different
voltage.
Table 3 contains AHRI recommendations for humidity
requirements and Table 4 shows what humidifiers and
output configuration will satisfy the humidification
requirements.
Table 3. AHRI Recommended Humidity (in US gallons per day).
Table 4. Steam humidifier(s) necessary for application.
a
a
In the table above, 11 GPD indicates a steam humidifier configured to run on 120 V and 22 GPD indicates a steam
humidifier configured to run on 240 V.
Construction
Type 8,000 ft
3
12,000 ft
3
16,000 ft
3
20,000 ft
3
24,000 ft
3
32,000 ft
3
40,000 ft
3
Tight 3.3 5.0 6.7 8.3 10.0 13.4 16.7
Average 6.7 10.0 13.4 16.7 20.0 26.7 33.4
Loose 10.0 15.0 20.0 25.0 30.1 40.1 50.1
Construction
Type 8,000 ft
3
12,000 ft
3
16,000 ft
3
20,000 ft
3
24,000 ft
3
32,000 ft
3
40,000 ft
3
Tight 11 GPD 11 GPD 11 GPD 11 GPD 11 GPD
11 GPD (x2)
or
22 GPD (x1)
11 GPD (x2)
or
22 GPD (x1)
Average 11 GPD 11 GPD 22 GPD 22 GPD 22 GPD
11 GPD (x4)
or
22 GPD (x2)
11 GPD (x4)
or
22 GPD (x2)
Loose 11 GPD 22 GPD 22 GPD
11 GPD (x4)
or
22 GPD (x2)
11 GPD (x4)
or
22 GPD (x2)
11 GPD (x4)
or
22 GPD (x2)
11 GPD (x5)
or
22 GPD (x3)