The Armstrong Air 2PHP13 is a discontinued packaged heat pump unit with an efficiency rating of 13 SEER and 7.7 HSPF. It had a 2- to 5-ton heating and cooling capacity with 5-20 KW heating ranges. The service panel had only two screws for easy accessibility, with service valves mounted high within the panel. The unit's control board featured LED diagnostics. The 2PHP13 used R22 refrigerant.
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