A.O. Smith AHPW-25 User'S Information Manual Download

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Certified

UL 1995:2015

CSA C22.2 NO. 236:2015

User’s Information

Manual

Series 100

Models: AHPW-25 - AHPW-60

- AHPW-90 - AHPW-125 -

AHPW-185 - AHPW-250

Water Source

Commercial Heat Pump

Water Heating Systems

http://waterheatertimer.org/Two-water-heaters.html

Summary of Contents for AHPW-25

Page 1: ...CSA C22 2 NO 236 2015 User s Information Manual Series 100 Models AHPW 25 AHPW 60 AHPW 90 AHPW 125 AHPW 185 AHPW 250 Water Source Commercial Heat Pump Water Heating Systems http waterheatertimer org...

Page 2: ......

Page 3: ...VE 12 TANK SELECTION 12 SOLAR TANKS 12 STORAGE HANDLING 12 STORAGE RECOMMENDATIONS 13 TABLE OF CONTENTS INSTALLATION 13 REQUIRED ABILITY 13 GENERAL 13 REQUIRED TOOLS MATERIALS 13 INSTALLATION START UP...

Page 4: ...CREEN DISPLAYING ALARM STATUS 25 SINGLE UNIT ALARM SCREEN 25 SINGLE UNIT PIPE CONFIGURATION SCREEN 25 SINGLE UNIT TANK CONFIGURATION SCREEN 25 SINGLE UNIT IP ADDRESS CONFIGURATION 25 SINGLE UNIT HEAT...

Page 5: ...hers who install use or service this heat pump water heater All safety messages will generally tell you about the type of hazard what can happen if you do not follow the safety message and how to avoi...

Page 6: ...cy 1 External fire 2 Damage 3 Running without water GROUNDING INSTRUCTIONS This heat pump water heater must be grounded in accordance with the National Electrical Code and or local codes These must be...

Page 7: ...AGE Thismanualcontainsinstructionsfortheinstallation operation and maintenance of the heat pump water heater HPWH It also contains warnings throughout the manual that you must read and be aware of All...

Page 8: ...mer provided Water Pump circulates water through the condenser Refrigerant leaving the condenser is a medium temperature high pressure liquid It flows through the Liquid Line to the Thermostatic Expan...

Page 9: ...Component Refrigeration Circuit Compressor Condenser Heat Exchanger Receiver Thermostatic Expansion Valve TXV Evaporator Heat Exchanger Accumulator Refrigerant State Gas Gas to Liquid Liquid Liquid Li...

Page 10: ...6 WATER TO WATER CYCLE...

Page 11: ...GPM Performance Dimensions Weight Water Heating Capacity Cooling Capacity Inlet Outlet Water FPT Length A Width B Height C Dry Weight LBS Operating Weight LBS BTUH BTUH AHPW 25 4 5 4 28 600 22 275 38...

Page 12: ...st conform to these instructions and all local and national code authority having jurisdiction Costs to diagnose perform service and repair damage caused by installation errors are not covered under t...

Page 13: ...ical Code CSA C22 1 Voltage applied to the HPWH should not vary more than 5 to 10 of the voltage requirement listed on the HPWH rating label for satisfactory operation TABLE 2 VOLTAGE AMPERAGE RATINGS...

Page 14: ...e heat pump water heaters are two wire circuits Three phase heaters are three wire circuits In addition to the foregoing a grounded conductor is required Not more than three conductors in raceway cabl...

Page 15: ...s must be taken In addition to using the lowest possible temperature setting that satisfies the demand of the application a Mixing Valve should be installed upstream from the building fixtures or at t...

Page 16: ...sistance in sizing of a temperature and pressure relief valve Follow the storage tank manufacturer s instructions regarding the proper installation of these products TANK SELECTION The HPWH unit is no...

Page 17: ...al components are not moisture tolerant Note The limited warranty does not cover damage to the unit or controls due to negligence during storage The pictures may appear different than your actual unit...

Page 18: ...e hangers Structural channels in a field provided frame should be mounted perpendicular to the unit s footing channels The following critical points must be observed when the HPWH unit is suspended fr...

Page 19: ...ater on two tank preheat systems See Piping Diagram on page 30 9 A T P valve must be installed in the designated opening onthestoragetankperthetankmanufacturer srequirements See Temperature Pressure R...

Page 20: ...lel to prevent hot water short circuiting 5 When the HPWH is connected to a storage tank ensure the storage tank is equipped with a properly rated and sized Temperature and Pressure T P relief valve R...

Page 21: ...d temperature control opening in the mid lower portion of the storage tank Ensure the supplied Temperature Sensor is coated with a suitable heat transfer compound paste PRE STARTUP CHECKLIST 1 Before...

Page 22: ...s If not there is a good chance the system is air bound and the air needs to be removed before starting the compressor Turn power back on and the heat pump will start within 5 minutes if there is a ca...

Page 23: ...STARTING SOUND During the very brief start up a clicking sound is audible resulting from initial contacting of the spirals and is normal Nostartassistdevicesarerequiredforsingle phasecompressors even...

Page 24: ...rate through the condenser by using the lower limit input WHY Every piping system is different therefore they have different head losses in the system In order for the AO Smith heatpumptooperateeffici...

Page 25: ...ng OFF parameter indicating that you have entered the menu OFF This parameter indicates your desired high temperature When this temp is reached the unit will enter a cool down mode until the On value...

Page 26: ...now in restricted mode Securely replace the cover before reconnecting power to the controller Lock out You can format your parameters to completely restrict all user adjustment of the control when in...

Page 27: ...Pump Time Delay indicates remaining time in pump countdown when the count down starts the pump turns on Indicator Box indicates if the unit has been called to run green means run red means on standby...

Page 28: ...and then permanently attach them to their respective tanks 4 Connect all of the member units to the router in the junction box 5 Under the configuration screen press the SEARCH FOR UNITS button to fin...

Page 29: ...id Valve indicates the position of the LLSV open or closed Comp Compressor indicates the status of the compressor on or off Blower Blower Overload Status indicates if the blower motor starter is tripp...

Page 30: ...urs of the compressor Purge button this button will run the pump relay for 2 minutes to allow you to purge the system without turning on the units Tank Pipe Unit call probe location probe is recommend...

Page 31: ...to eliminate other potential problems before checking the refrigerant charge CHECK WATER TEMPERATURE RISE Always check water temperature rise through the HPWH unit s internal heat exchanger before ch...

Page 32: ...28 TABLE 10 FIGURE 12...

Page 33: ...d Shut off valves are partially closed Thermostat setting should not exceed 160 F Keep heat pump off until room temperature is back in operating range Low water ow corrections Replace unit pump Reduc...

Page 34: ...K ISOLATION VALVE CIRCULATING PUMP TEMPERATURE GAUGE WYE STRAINER TEMP PRESS RELIEF VALVE FLUSH VALVE PIPING WIRING ONLY USE BOTTOM LOWER CONNECTION IF TANK HAS TWO THERMOWELL HP WATER HEATER THERMAL...

Page 35: ...TION VALVE CIRCULATING PUMP TEMPERATURE GAUGE WYE STRAINER TEMP PRESS RELIEF VALVE FLUSH VALVE PIPING WIRING ONLY USE BOTTOM LOWER CONNECTION IF TANK HAS TWO HP WATER HEATER THERMOWELL THERMAL STORAGE...

Page 36: ...GAUGE WYE STRAINER TEMP PRESS RELIEF VALVE FLUSH VALVE PIPING WIRING ONLY USE BOTTOM LOWER CONNECTION IF TANK HAS TWO THERMOWELL HP WATER HEATER HP WATER HEATER MASTER CONTROL PANEL RECOMMENDED FOR MU...

Page 37: ...HECK VALVE EXPANSION TANK ISOLATION VALVE CIRCULATING PUMP TEMPERATURE GAUGE WYE STRAINER TEMP PRESS RELIEF VALVE FLUSH VALVE PIPING WIRING HP WATER HEATER THERMOWELL THERMAL STORAGE COLD WATER SUPPLY...

Page 38: ...TER SINGLE HEATER MIXING VALVE CHECK VALVE EXPANSION TANK ISOLATION VALVE CIRCULATING PUMP TEMPERATURE GAUGE WYE STRAINER TEMP PRESS RELIEF VALVE FLUSH VALVE PIPING WIRING SOURCE WATER SUPPLY SOURCE W...

Page 39: ...HEATER REVERSE RETURN MIXING VALVE CHECK VALVE EXPANSION TANK ISOLATION VALVE CIRCULATING PUMP TEMPERATURE GAUGE WYE STRAINER TEMP PRESS RELIEF VALVE FLUSH VALVE PIPING WIRING SOURCE WATER SUPPLY SOUR...

Page 40: ...en the heat pump water heater is installed in accordance with local plumbing and building codes ordinances and regulations the warrantor s printed instructions provided with it and good industry pract...

Page 41: ...37 500 Tennessee Waltz Parkway Ashland City TN 37015 Technical Support 1 833 447 3201 www hotwater com...

Page 42: ...38 Service Log Issue Description Date Servicer...

Page 43: ...39 Service Log Issue Description Date Servicer...

Page 44: ......

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