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Bosch Greensource SM024 Installation, Operation And Maintenance Manual

Sm ah series heat pump
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SM AH Series Heat pump
SM024 | SM036 | SM048 | SMO60 | SM070
Installation, Operation and Maintenance Manual

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  Summary of Contents for Bosch Greensource SM024

  • Page 1 SM AH Series Heat pump SM024 | SM036 | SM048 | SMO60 | SM070 Installation, Operation and Maintenance Manual...
  • Page 2: Table Of Contents

    DX071-1VTX SM070-1CSC SM070-1AVX SM070-1AHX DX071-1VTX DX071-1CCX DX071-1UCX LEGEND: BOSCH box style Vertical Air Handler BOSCH box style Horizontal Air Handler Cased coil Uncased coil BOSCH unitary style air handler 8733920846 (2014/01) Subject to change without prior notice SM AH Series Heat Pump...
  • Page 3: Ah Model Nomenclature

    SM AH Series Heat Pump AH Model Nomenclature | 3 AH MODEL NOMENCLATURE AV X X L T A SERIES FAN MOTOR OPTIONS A - Constant Airflow ECM SIZE DISCHARGE AIR CONFIGURATION T - Top (AV only) S - Straight (AH only) E - End (AH only) RETURN AIR CONFIGURATION L - Left...
  • Page 4: Initial Inspection

    4 | INITIAL INSPECTION SM AH Series Heat Pump MOVING AND STORAGE To avoid equipment damage, DO NOT use If the equipment is not needed for immediate these units as a source of heating or cooling installation upon its arrival at the job site, it should during the construction process.
  • Page 5: Condensing Section

    SM AH Series Heat Pump Installation | 5 Condensing Section If the condensing section is installed in a location where ambient temperatures can fall below Locate the condensing section in an area that freezing, some form of freeze protection should be provides sufficient room to make water and employed such as anti-freeze.
  • Page 6: Mounting Horizontal Air Handler Units

    6 | CONDENSATE DRAIN SM AH Series Heat Pump Mounting Horizontal Air Handler Units CONDENSATE DRAIN While horizontal units may be installed on any level If equipped with float style condensate overflow surface strong enough to hold their weight, they switch, final adjustment must be made in the are typically suspended above a ceiling by field.
  • Page 7: Duct System

    SM AH Series Heat Pump DUCT SYSTEM | 7 DUCT SYSTEM ELECTRICAL A supply air outlet collar and return air duct flange Always disconnect power to the unit before are provided on all units to facilitate duct servicing to prevent injury or death due to connections.
  • Page 8: Low Voltage Control Wiring

    8 | Electrical SM AH Series Heat Pump Low Voltage Control Wiring Each model has a number of heater sizes available. Refer to Figure #7 for heater package compatibility The SM series units incorporate the ECM variable with specific units, model nomenclature and elec- speed fan motor and control interface board.
  • Page 9: Electronic Thermostat Installation

    SM AH Series Heat Pump Electrical | 9 Units supplied with internal electric heat require Packaged heat pumps are equipped with two (2) separate power supplies: one for the unit detachable Thermostat connectors. These compressor and one for the electric heater connectors are located in different locations elements, blower motor and control circuit.
  • Page 10: Ecm Interface Board

    10 | Electrical SM AH Series Heat Pump ECM Interface Board If the thermostat is provided with a malfunction light powered off of the hot (R) side of the transformer, then the thermostat malfunction light connection should be connected directly to the (ALR) contact on the unit’s UPM board.
  • Page 11: Sequence Of Operation

    SM AH Series Heat Pump Sequence of operation | 11 Heating Mode Just above and to the right of the thermostat connection block are four sets of jumper pins Heating operates in the same manner as cooling, labeled ADJ, DELAY, HEAT and COOL. The ADJ set but with the reversing valve de-energized.
  • Page 12: Linear Vs Equivalent Line Length

    12 | Refrigerant Lines SM AH Series Heat Pump • Oil is continually being circulated with the • Connect and braze lines to service valves on refrigerant so, oil return to the compressor is the condensing section. always a consideration in line sizing. Suction WARNING: Always wrap the body of the lines on split system heat pumps are also hot service valve with a wet towel or apply some...
  • Page 13: Charging The System

    SM AH Series Heat Pump Charging the system | 13 CHARGING THE SYSTEM • If the calculated Equivalent Line Length falls between the lengths shown on Table 3, use Do not overcharge the system. Charge all systems tubing sized for the next longer length. by weight as determined from Figure #15 and the •...
  • Page 14: System Checkout

    14 | SYSTEM CHECKOUT SM AH Series Heat Pump SYSTEM CHECKOUT INITIAL START-UP After completing the installation, and before 1. Make sure all valves in heat recovery water energizing the unit, the following system checks piping system are open. NEVER OPERATE HR should be made: PUMP DRY.
  • Page 15 SM AH Series Heat Pump | 15 5. Periodic lockouts almost always are caused by air or water flow problems. The lockout (shutdown) of the unit is a normal protective measure in the design of the equipment. If continual lockouts occur call a mechanic immediately and have them check for: water flow problems, water temperature problems, air flow problems or air temperature problems.
  • Page 16: Operating Pressures & Temperatures

    16 | Operating Pressures & Temperatures SM AH Series Heat Pump OPERATING PRESSURES & TEMPERATURES Operating Temperatures and Pressures COOLING HEATING Entering Suction Discharge Water Suction Discharge Water Model Water Pressure Pressure Temp Temp Pressure Pressure Temp Temp Temp. F Flow PSIG PSIG...
  • Page 17 SM AH Series Heat Pump Operating Pressures & Temperatures | 17 Operating Temperatures and Pressures COOLING HEATING 73-89 266-325 15-18 30° 77-94 272-333 16-19 117-143 189-231 14-17 18-22 86-105 279-341 17-21 40° 112-137 178-217 19-24 90-110 286-350 18-22 126-154 221-270 14-17 18-21 105-125...
  • Page 18 18 | Operating Pressures & Temperatures SM AH Series Heat Pump Operating Temperatures and Pressures COOLING HEATING 64-78 248-303 15-18 30° 12.0 67-82 254-311 16-19 109-134 183-224 18-22 19-23 75-91 261-319 17-21 40° 12.0 105-128 172-210 10-12 20-25 79-96 267-327 18-23 118-144 214-261...
  • Page 19 SM AH Series Heat Pump Operating Pressures & Temperatures | 19 Operating Temperatures and Pressures COOLING HEATING 68-84 256-313 19-23 30° 14.0 73-89 261-319 20-25 113-138 172-210 18-22 19-23 81-99 277-339 22-26 40° 14.0 110-134 161-196 12-14 20-24 86-105 283-346 23-28 116-142 206-252...
  • Page 20 20 | Operating Pressures & Temperatures SM AH Series Heat Pump Operating Temperatures and Pressures COOLING HEATING 71-87 259-316 19-23 30° 18.0 76-92 264-322 20-25 116-141 175-213 18-22 19-23 84-102 280-342 22-26 40° 18.0 113-137 164-199 12-14 20-24 89-108 286-349 23-28 119-145 209-255...
  • Page 21: Unit Checkout Sheet

    Auxiliary Heat Unit Make __________________________________ Model Number: ______________________________ Serial Number _____________________________ Max Fuse Size (Amps) _______________________ Volts / Amps _______________________________ Bosch Group Entering Air Temperature _____________________ 601 NW 65th Court Leaving Air Temperature ______________________ Fort Lauderdale, FL 33309 MAIL TO: Phone: (866) 642-3198 Bosch.Fhp.TechSupport@us.bosch.com...
  • Page 22: Troubleshooting

    22 | Troubleshooting SM AH Series Heat Pump TROUBLESHOOTING Unit Troubleshooting Problem Possible Cause Checks and Correction ENTIRE UNIT Power Supply Off Apply power, close disconnect DOES NOT RUN Blown Fuse Replace fuse or reset circuit breaker. Check for correct fuses Voltage Supply If voltage is below minimum voltage specified on unit data plate, contact local power company.
  • Page 23 SM AH Series Heat Pump Troubleshooting | 23 Unit Troubleshooting Problem Possible Cause Checks and Correction INSUFFICIENT Unit undersized Recalculate heating and or cooling loads. If excessive, possibly adding COOLING OR insulation and shading will rectify the problem HEATING Loss of Check for leaks in duct work or introduction of ambient air through conditioned air by doors or windows...
  • Page 24: Wiring Diagrams

    24 | Wiring Diagrams SM AH Series Heat Pump WIRING DIAGRAMS Figure # 16 SM - No Electric Heat Kit 8733920846 (2014/01) Subject to change without prior notice SM AH Series Heat Pump...
  • Page 25 SM AH Series Heat Pump Wiring Diagrams | 25 Figure # 17 SM- With Electric Heat Kit 8733920846 (2014/01)
  • Page 26: Dimensional Drawings

    26 | Dimensional drawings SM AH Series Heat Pump DIMENSIONAL DRAWINGS 8733920846 (2014/01) Subject to change without prior notice SM AH Series Heat Pump...
  • Page 27 SM AH Series Heat Pump Dimensional drawings | 27 8733920846 (2014/01)
  • Page 28: Notes

    28 | Notes SM AH Series Heat Pump NOTES 8733920846 (2014/01) Subject to change without prior notice SM AH Series Heat Pump...
  • Page 29 SM AH Series Heat Pump Notes | 29 8733920846 (2014/01)
  • Page 30 30 | Notes SM AH Series Heat Pump 8733920846 (2014/01) Subject to change without prior notice SM AH Series Heat Pump...
  • Page 31 SM AH Series Heat Pump Notes | 31 8733920846 (2014/01)
  • Page 32 601 N.W. 65th Court, Ft. Lauderdale, FL 33309 Phone: 866-642-3198 | Fax: 954-776-5529 www.boschtaxcredit.com | www.bosch-climate.us Revised 01-14...