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Bosch TA Series Installation And Maintenance Manual

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TA Series
Installation and Maintenance Manual
6 720 220 046
Revised 05-12

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  Summary of Contents for Bosch TA Series

  • Page 1 TA Series Installation and Maintenance Manual 6 720 220 046 Revised 05-12...
  • Page 2 ©Copyright 2012 Bosch, Inc All rights reserved...
  • Page 3: Table Of Contents

    TA Series Table of Contents Table oF CoNTeNTs Model Nomenclature ............3 Heating Mode ..............13 Initial Inspection ............4 Well Water Systems ............13 General Description ............4 Installation Of Pressure Regulating Valves ....13 Moving And Storage ............4 Cooling Tower/Boiler Systems ........14 Safety Considerations ............4 Earth Coupled Systems ..........14...
  • Page 4: Initial Inspection

    Initial Inspection Ta series INITIal INsPeCTIoN less than 6 tons, no more than three high. “Do not stack units larger than 6 tons.” Be certain to inspect all cartons or crates on each unit as received at the job site before signing the freight saFeTY CoNsIderaTIoNs bill.
  • Page 5: Mounting Horizontal Units

    Mounting Horizontal units Ta series slightly larger than the base to minimize vibration transmission to the building structure. It is not necessary to anchor the unit to the floor. (See Figure #1). MouNTING HorIZoNTal uNITs Figure #3 pan is usually placed on a plywood base isolated from the ceiling joists by additional layers of vibration absorbing mesh.
  • Page 6: Duct System

    Should your well driller express connections. Refer to the Bosch individual data concern regarding the quality of the well water specification sheet for physical dimensions of the available or should any known hazards exist in your collar and flange.
  • Page 7: Ecm Interface Board Thermostat Connections

    Ta series eCM Interface board Properly sized fuses or HACR circuit breakers must be installed for branch circuit protection. See unit nameplate for maximum fuse or breaker size. The unit is provided with a concentric knock-out in the front left corner post for attaching common trade sizes of conduit, route power supply wiring through this opening.
  • Page 8 1200 CFM. Refer to Figure #7 for factory thermostat inputs on to the rest of the control programmed air delivery settings for the TA Series. circuit. Remember to always turn off unit power at the circuit breaker before attaching or disconnecting...
  • Page 9: Safety Devices And The Upm Controller

    Controller Ta series saFeTY deVICes aNd THe uPM CoNTroller Each unit is factory provided with a Unit Protection Module (UPM) that controls the compressor opera- tion and monitors the safety controls that protect the unit.
  • Page 10 Controller Ta series • MalFuNCTIoN ouTPuT—Alarm output is Normally - One blink—High pressure lockout Open (NO) dry contact. If 24 VAC output is needed - Two blinks—Low pressure lockout R must be wired to the ALR-COM terminal; 24VAC - Three blinks—Freeze sensor lockout...
  • Page 11 Ta series UPM Sequence of Operation (SOO) Flow Chart Y1=1 Power/Switchs/Sensor Status Check 18VAC > Lockout Can Be Set To 4 Via Dip Switch Blink Code On Status LED Soft Lockout HPC = 1 COUNT = 2...
  • Page 12: Sequence Of Operation

    Once the thermostat is satisfied, the compressor compressor power supply failure. Each TA Series shuts down accordingly and the fan ramps down to model has a number of heater sizes available. Refer to...
  • Page 13: Sequence Of Operation Two Stage Units

    With the the same manner as cooling, but with the reversing Bosch heat pumps these valves are not required. However, valve de-energized. On a call for auxiliary heat (W1), if installed, a pair of valves are required for proper...
  • Page 14: Cooling Tower/Boiler Systems

    Coupled systems TA Series valve for heating (indirect acting). A refrigerant tap is No unit should be connected to the supply or return provided in the refrigerant line located between the piping until the water system has been completely...
  • Page 15: Heat Recovery Package

    Heat recovery Package TA Series reversing valve solenoid should energize. The refrigerant discharge gas from the compressor. This compressor and fan should not run. waste heat of the cooling mode captured by the heat recovery increases the capacity and efficiency of the 3.
  • Page 16: Hr Water Piping

    Initial start-uP TA Series TroublesHooTING Problem Possible Cause Checks and Corrections No Flow No Power Check power supply On/Off Switch Position Set switch to “ON” position Low Flow Compressor Contactor Engage heat pump contactor Broken or loose wires Repair or tighten wires...
  • Page 17: Maintenance

    Maintenance TA Series MaINTeNaNCe 3. Lubrication of the blower motor is not required, however may be performed on some 1. Filter changes or cleanings are required at regular motors to extend motor life. Use SAE-20 intervals. The time period between filter changes non-detergent electric motor oil.
  • Page 18 TA Series Well Water application Figure 10: Well Water application 6 720 220 046 Subject to change without prior notice Revised 05-12...
  • Page 19 Cooling Tower/Boiler Application TA Series Figure 11: Cooling Tower/Boiler Application 6 720 220 046 Revised 05-12...
  • Page 20 Coupled application TA Series Figure 12: earth Coupled application 6 720 220 046 Subject to change without prior notice Revised 05-12...
  • Page 21: Typical Wiring Diagrams

    Typical Wiring diagram TA Series TYPICal WIrING dIaGraM Single Phase | Two Stage | ECM Blower Motor | 2—6 Ton 6 720 220 046 Revised 05-12...
  • Page 22: Typical Wiring Diagram

    Typical Wiring diagram TA Series TYPICal WIrING dIaGraM Single Phase | Two Stage | ECM Blower Motor | Electric Heat | 2—6 Ton 6 720 220 046 Subject to change without prior notice Revised 05-12...
  • Page 23: Operating Pressures & Temperatures

    TA Series operating Pressures & Temperatures oPeraTING Pressures & TeMPeraTures environmentally safe r-410a refrigerant Table 1: operating data COOLING HEATING Entering Water Suction Discharge Water Suction Discharge Water Model Water Flow Pressure Temp Temp Pressure Pressure Temp Temp Pressure Temp. °F...
  • Page 24 Pressures & Temperatures TA Series oPeraTING Pressures & TeMPeraTures environmentally safe r-410a refrigerant Table 1 continued: operating data COOLING HEATING Entering Water Suction Water Suction Discharge Water Discharge Model Water Flow Pressure Pressure Temp Temp Pressure Pressure Temp Temp Temp.
  • Page 25 Pressures & Temperatures TA Series oPeraTING Pressures & TeMPeraTures environmentally safe r-410a refrigerant Table 1 continued: operating data COOLING HEATING Entering Water Suction Water Suction Discharge Water Discharge Model Water Flow Pressure Pressure Temp Temp Pressure Pressure Temp Temp Temp.
  • Page 26 Pressures & Temperatures TA Series oPeraTING Pressures & TeMPeraTures environmentally safe r-410a refrigerant Table 1 continued: operating data COOLING HEATING Entering Water Suction Water Suction Discharge Water Discharge Model Water Flow Pressure Temp Temp Pressure Pressure Temp Temp Pressure Temp.
  • Page 27: Unit Check-Out Sheet

    Max Fuse Size (Amps) __________________________________ Volts / Amps_____________________ /______________________ Entering Air Temperature _______________________________ Leaving Air Temperature _______________________________ Bosch Group 601 NW 65th Court Fort Lauderdale, FL 33309 Phone: (954) 776-5471 Fax: (800) 776-5529 http://www.fhp-mfg.com 6 720 220 046 Revised 05-12...
  • Page 28: Troubleshooting

    Troubleshooting TA Series TroublesHooTING Problem Possible Cause Checks and Corrections 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 Low If voltage is below minimum voltage specified on unit data plate, contact local power company.
  • Page 29 Troubleshooting TA Series Insufficient Unit undersized Recalculate heating and or cooling loads. If excessive, possibly adding insulation and shading will rectify the problem cooling or heating Loss of conditioned Check for leaks in duct work or introduction of ambient air through...
  • Page 30 Notes TA Series 6 720 220 046 Subject to change without prior notice Revised 05-12...
  • Page 31 Notes TA Series 6 720 220 046 Revised 05-12...
  • Page 32 601 N.W. 65th Court, Ft. Lauderdale, FL 33309 Phone: 954-776-5471 | Fax: 954-776-5529 www.boschtaxcredit.com | www.bosch-climate.us Revised 05-12...