Amana PHWT-A150H Non-Programmable 2-Stage Wired Wall Thermostat | 24V Hardwired 2-Speed Fan Control for PTAC & PTHP Systems
Amana PHWT-A150H Non-Programmable 2-Stage Wired Wall Thermostat | 24V Hardwired 2-Speed Fan Control for PTAC & PTHP Systems
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The Amana PHWT-A150H Electronic Wall Thermostat is the commercial standard for hardwired 24V temperature control in hospitality and multi-family climate systems. Engineered specifically for Amana PTC (Electric Heat) and PTH/HEH (Heat Pump) Packaged Terminal Air Conditioners, this non-programmable digital unit supports 2-stage heating and 1-stage cooling with dual-speed fan control (Low/High/Auto).
Featuring a large 3-inch backlit display, soft-touch buttons, and a patented Thermal Intrusion Barrier, the PHWT-A150H eliminates temperature reading distortion caused by wall cavity drafts. Built-in property management controls—including field-adjustable high/low set-point limits and keypad lockout—protect equipment against guest abuse and cut building demand charges.
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Lowers Utility Costs: Configurable maximum heat and minimum cool limits prevent guests from over-cooling or over-heating rooms.
Eliminates Battery Maintenance: Hardwired 24 VAC operation removes the cost and labor of replacing dead AA batteries across dozens of rooms.
Prevents Draft Sensor Errors: Patented Thermal Intrusion Barrier isolates the internal thermistor from wall cavity temperature drafts.
Universal Amana Compatibility: Operates both standard electric heat (PTC) and heat pump (PTH) commercial PTAC chassis.
Reduces Guest Calls: Large, easy-to-read 3" backlit digital screen with simple soft-touch temperature pads.
Large 3-Inch Backlit Screen: Clear digital readout showing current room temperature and target set-point.
System Mode Slide Switches: Physical HEAT / OFF / COOL and FAN AUTO / LOW / HIGH controls for intuitive guest operation.
2-Stage Heat / 1-Stage Cool Support: Controls reversing valve (B/O terminal) and 2nd stage auxiliary heat strips.
Field Adjustable Calibration: Allows engineering staff to calibrate sensor readings to match facility standards +- 1°F accuracy).
Easy-Access Terminal Block: Heavy-duty screw terminals marked clearly for standard 24V color-coded thermostat wiring.
Model Number PHWT-A150HReplaces legacy model Amana 2246003
Input Voltage 19 to 30 VAC (24 VAC Nominal)Hardwired low-voltage power supply
Output Rating Max 1.5A per terminal (3.0A total load)Commercial relay switching capacity
Control Range 45°F to 90°F (7°C to 32°C)Field selectable Fahrenheit (°F) or Celsius (°C)
Dimensions 4.53" WX 4.53" HX 1.2"$:
Terminal Connection C24 VAC CommonRequired for display power and relays
Terminal Connection R 24 VAC HotPrimary 24V power input
Terminal Connection GL / GH Fan LOW Speed / Fan HIGH SpeedDual-speed blower motor control
Terminal Connection W1 / W2 1st Stage Heat / 2nd Stage (Aux) HeatElectric heat strip or primary stage heating
Terminal Connection YCooling SignalCompressor engagement relay
Terminal Connection B/O Reversing ValveHeat pump reversing valve signal
coming soon