Measurement Guide

Use the map above to determine your region and compare to the chart below to find your application size.
14 SEER Residential Heat Pump System Sizing for 4HP15L Series
Region 1 Region 2 Region 3 Region 4 Region 5
System Size
940-1300 880-1235 835-1165 680-955 680-955 1.5 TON
1300-1680 1235-1580 1165-1500 955-1225 955-1225 2.0 TON
1680-2060 1580-1940 1500-1830 1225-1500 1225-1500 2.5 TON
2060-2435 1940-2290 1830-2165 1500-1770 1500-1770 3.0 TON
2435-2810 2290-2645 2165-2500 1770-2045 1770-2045 3.5 TON
2810-3375 2645-3175 2500-3000 2045-2455 2045-2455 4.0 TON
Residential Sizing: The table and charts are intended to be used as a guideline for Residential applications only.
The information is based on conventional window space (<15%), insulation and building construction (8 ft.
ceiling height). When including a finished basement, use 1/2 of the finished basement square footage with
the rest of the area being calculated.
Mobile/Manufactured Home Sizing: Refer to the Date Plate located in the electrical box or kitchen cabinets. For
further assistance, call Hamilton's customer service department [phone].
Square Footage
ROYALTON® Equipment Sizing Guide