7. Permanently stamp the unit nameplate with the total system charge, which is defined as
follows: total system charge = base charge (as shipped) + charge adder for matched indoor
unit + charge adder for actual lineset length + charge adjustments to match the charging
chart.
System capacity
Table 5: System capacity - single piece and modular air handlers
Air handler Cooling Heating
Net MBH Net MBH COP
Unit model
Model Width
Coil
model
Rated
Total Sens.
SEER EER
47°F
OD
17°F
OD
HSPF
HSPF
region
V
47°F
OD
17°F
OD
HMH72B241S AE36CX21 21.0 - 850 22.2 17.0 17.50 10.00 22.0 14.7 9.00 7.60 3.36 2.54
HMH72B361S AE36CX21 21.0 - 1200 36.0 26.5 18.00 10.00 36.8 25.4 10.50 8.75 3.40 2.74
HMH72B481S AE60DX21 24.5 - 1500 48.0 34.3 18.00 10.50 46.0 32.8 9.50 8.00 3.34 2.72
HMH72B601S AE60DX21 24.5 - 1700 58.5 20.7 17.00 8.50 56.5 40.0 10.00 8.45 3.24 2.74
Note:
• Rated in accordance with DOE test procedures (Federal Register 12-27-79 and 3-18-88)
and ANSI/AHRI Standard 210/240.
• Cooling MBH is based on 80°F entering air temperature, 50% RH (relative humidity), and
rated airflow.
EER (energy efficiency ratio) is the total cooling output in BTUs at 95°F outdoor ambient
divided by the total electric power in watt-hours at those conditions.
SEER (seasonal energy efficiency ratio) is the total cooling output in Btu during a normal
annual usage period for cooling divided by the total electric power input in watt-hours
during the same period.
• Heating MBH is based on AHRI standards of 70°F DB (dry bulb) entering indoor air,
72% RH (relative humidity) outdoor air with 25 ft of interconnecting piping and no
supplemental electric heat operation.
HSPF (heating seasonal performance factor) is the total heating output during a normal
annual usage period for heating divided by the total electric power input during the same
period.
COP (coefficient of performance) equals heating MBH output divided by (total kW input x
3.412).
Applications and accessories
Table 6: Minimum and maximum operating limit conditions
Outdoor coil °F (°C)
Ambient temperature limits
DB cool DB heat
Minimum 35 (2) -5 (-21)
Maximum 122 (50) 75 (24)
Note: The maximum lineset equivalent length is 200 ft.
The following accessories are compatible with H Series heat pumps:
11YORK Technical Guide: HMH7 Series - 17 SEER Horizontal Discharge Modulating Heat Pump
Johnson Controls Ducted Systems
To Next Page
Loading...
Need help?
General
