A.O. Smith PHPT-80 Adjusting the User Interface Module/Operational Modes, Other Controls

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Adjusting the User Interface Module/Operational Modes

Water Temperature Adjustment

The water temperature can be adjusted from 95°F to 150°F.

Use the Up and Down Buttons on the front panel to set the desired temperature.

IMPORTANT: Before attempting to adjust the thermostat, read the “Water Temperature Regulation” section. If the instructions are not clear, contact a qualified person.

IMPORTANT: Filling a spa or hot tub from this water heater may result in extended recovery/re-heat time. Switching (temporarily) to Hybrid Mode or Electric Mode will decrease the recovery/re-heat time. Be sure to switch back to the desired operational mode when finished.

Operating Mode Descriptions

The operating modes can be changed by touching the desired mode icon on the User Interface Module (see Figure 10.)

NOTE: All buttons on the User Interface are touch sensitive and require only a light touch to actuate.

 

 

 

 

 

Efficiency Mode - Is the most energy efficient

EFFICIENCY

mode. This mode uses the heat pump to heat water

 

 

 

 

 

in the tank. The elements are not used unless the

 

 

 

 

 

ambient operating temperature is below 45°F or

 

 

 

 

 

above 109°F. If hot water demands are not met in

 

 

 

 

 

Efficiency Mode it may be necessary to switch to

 

 

 

 

 

Hybrid Mode.

 

 

 

 

 

Hybrid Mode (recommended setting) - Combines

 

 

 

 

 

HYBRID

high energy efficiency with reduced recovery time.

 

 

 

 

 

 

This mode uses the heat pump as the primary

 

 

 

 

 

heating source. The heating element will heat

 

 

 

 

 

water if demand exceeds a predetermined level so

 

 

 

 

 

that the set point temperature can be recovered

 

 

 

 

 

more quickly.

 

 

 

 

 

Electric Mode - The water heater functions as a

 

 

 

 

 

ELECTRIC

conventional electric unit, relying totally on the

 

 

 

 

 

 

 

 

 

 

elements to heat the water in the tank. This mode

 

 

 

 

 

may be useful in winter to eliminate the output of

 

 

 

 

 

cold air from the unit.

 

 

 

 

 

Vacation Mode - The controller adjusts the water

VACATION

temperature to approximately 60°F. This mode is

 

 

 

 

 

 

 

 

 

 

recommended when the water heater is not in use

 

 

 

 

 

for a long period of time. This mode minimizes

 

 

 

 

 

energy consumption and prevents the water heater

 

 

 

 

 

from freezing during cold weather.

Other Controls

Lock - Holding this button for more than 3 seconds switches the lock mode on or off. When the User Interface Module is locked a symbol and “Lock” text will be visible on the display (see Figure 10).

°F/°C °F/°C - The button switches the display to show the set temperature in Fahrenheit or Celsius.

Figure 10 User Interface Module

Operational Mode Buttons

 

EFFICIENCY

HYBRID

ELECTRIC VACATION

Water

 

 

 

 

Temperature

Element

 

 

 

Set Point

 

 

 

 

Functioning

 

 

F

Water Heater

Icon

 

 

 

 

 

 

Mode/Status

 

 

 

 

 

 

 

 

Indicator

 

 

 

 

Water Heater

 

 

 

 

Efficiency Status

Heat Pump

 

 

 

Icon

HEAT PUMP

ELEMENT

LOCK EFFICIENCY

 

Functioning

 

 

 

 

 

Icon

 

 

 

LCD Control

 

 

°F/°C

 

 

 

 

Panel Lock Icon

 

 

 

 

Temperature

 

 

 

Temperature

Up (Increase)

 

 

 

Down (Decrease)

Button

 

 

 

Button

Fahrenheit/Celsius

LCD Display Panel

Temperature Display

Lock Button

Button

 

Power Button: On - Green

 

Standby - Red

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Contents Installation Instructions Use & Care Guide Water Heater Safety Your safety and the safety of others are very importantInstalling Your Water Heater Consumer InformationConsumer Responsibilities Basic Operation FundamentalsLocation Requirements Site locationPiping Installation Water System PipingCondensate Drain Line Installation Closed System/Thermal ExpansionTemperature and Pressure Relief Valve Temperature & Pressure Relief ValveElectrical Requirements Connecting the Condensate Pump Overflow Shut Off Switch Press the power button to turn the water heater onInsulation Blankets Installation Checklist Post Installation ReviewWater Heater Location Water System PipingBefore Using Water Temperature RegulationOperating Your Water Heater Adjusting the User Interface Module/Operational Modes Water Temperature AdjustmentOperating Mode Descriptions Other ControlsPowered Anode Operation Operational ConditionsWater Heater Sounds StackingMaintenance of Your Water Heater Heating Element ReplacementDraining and Flushing Cleaning the Heat Pump Routine Preventive MaintenanceAir Filter Cleaning/Replacement Replace the foam blocks and access coversDiagnostic Codes Display Shows IndicatesTroubleshooting Chart Problem Possible CausesRepair Part Illustration Page Copyright 2010 A.O. Smith Corporation. All rights reserved

318257-000, PHPT-80 specifications

The A.O. Smith PHPT-80,318257-000 is a highly efficient water heater designed to meet the needs of both residential and commercial applications. This unit features a capacity of 80 gallons, making it suitable for larger households and businesses requiring a significant supply of hot water. The PHPT-80 stands out for its innovative technologies, versatility, and durability.

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