Bosch LV Series Installation And Maintenance Manual
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Bosch LV Series Installation And Maintenance Manual

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LV Series Heat Pump
LV007 Thru LV070
Installation and Maintenance Manual

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Summary of Contents for Bosch LV Series

  • Page 1 LV Series Heat Pump LV007 Thru LV070 Installation and Maintenance Manual...

  • Page 2: Table Of Contents

    LV Heat PumpSeries CONTENTS Operating Conditions..........35 Auxiliary Heat ............35 Model Nomenclature............3 Troubleshooting ..............36 General Description............4 Temperature/Pressure Table ..........41 Moving and Storage............4 Waterside Pressure Drop Table.........46 Initial Inspection ............... 5 Compressor Characteristics ..........47 Location................5 Water Coil Volume ............48 Water Quality ..............

  • Page 3: Model Nomenclature

    LV Heat Pump Series Model Nomenclature | 3 MODEL NOMENCLATURE LV 018 - 1 VT C - F L T - P A SERIES REVISION LEVEL A - Current SIZE FAN/MOTOR OPTIONS P - Standard PSC A - Constant Airflow ECM T - Constant Torque ECM DSICHARGE AIR CONFIGURATION T - Top...

  • Page 4: General Description

    4 | General Description LV Heat PumpSeries GENERAL DESCRIPTION LV series units are offered with a wide range of factory installed options including: PSC, constant The LV series water-to-air heat pump provides an torque ECM or constant air flow ECM fan motors;...

  • Page 5: Initial Inspection

    In installations with high hydrogen sulfide, chlorine or ammonia, corrosion is a potential problem. In Do not use LV series units for temporary these installations a cupro-nickel heat exchanger is heating, air conditioning or ventilation recommended along with maintaining proper flow during construction, especially when and keeping air out of the system.

  • Page 6: Installation

    It is recommended that all fold-out flanges be The following are instructions to follow for folded-out once the heat pump is installed to installation of all LV Series components. insure that return and supply air flow is not Duct Flanges obstructed.

  • Page 7: Mounting Vertical Units

    (See Figure #2). local code. All major service access for the LV Series vertical and counterflow models is from the front side of the unit. When installing the unit in a confined...

  • Page 8: Converting Horizontal Supply Air Configuration

    Screw the panel Duct System into place. All LV Series models are provided with a return air 8. Replace the wires between the blower motor duct flange and supply air duct connections. and electrical box. Make sure to connect wires Refer to unit Dimensional Drawings for physical to the proper speed taps.

  • Page 9: Piping

    LV Heat Pump Series Installation | 9 if the unit will be installed in a new installation with Teflon tape sealer should be used when new duct work, the installation should be designed connecting water piping connections to the units using current ASHRAE procedures for duct sizing.

  • Page 10: Electrical - Low Voltage

    The fan motor and control circuit Note that the reversing valve on the LV series is power supply should be connected to a provided energized when the unit is in the cooling mode.

  • Page 11: Units Controls - Upm

    LV Heat Pump Series Units Controls - UPM | 11 Table 2: Low Voltage VA Draw Standard Construction Hot Gas Reheat or Optional Components Economizer Component Component Component Blower Relay (PSC Monitor Relay (VA draw 22-26 Total from ‘Standard’ motors only) per relay) Reversing Valve Additional Control...
  • Page 12 12 | Units Controls - UPM LV Heat PumpSeries When the HGRH DIP switch (Figure 7) is set to First Stage Compressor Operation “YES” the heat pump is configured for hot gas reheat. With hot gas reheat, when there is a call for dehumidification (the “H”...

  • Page 13: Sequence Of Operation

    LV Heat Pump Series Units Controls - UPM | 13 Sequence of Operation 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 14: General

    Cooling and Heating Modes at the unit malfunction output or relay. LV series heat pumps operate in cooling with the reversing valve energized. When the “O” terminal If the thermostat is provided with a malfunction...
  • Page 15 LV Heat Pump Series Units Controls - UPM | 15 • Evaporator freeze protection sensor, mounted If the thermostat is provided with a malfunction after the thermal expansion device and the light powered off of the hot (R) side of the evaporator, monitors refrigerant temperature transformer, then the thermostat malfunction between the evaporator coil and thermal...
  • Page 16 16 | Units Controls - UPM LV Heat PumpSeries • RANDOM START: Each controller has an unique UPM Board Factory Default Settings random start delay ranging from 270 to 300 seconds on initial power up to reduce the chance of multiple TEMP 30°F unit simultaneously starting at the same time after...

  • Page 17: Options

    LV Heat Pump Series Options | 17 • TEST DIP SWITCH: • INTELLIGENT RESET: If a fault condition is A test dip switch is provided initiated, the 5 minute delay on break time to reduce all time delays settings to 10 seconds period is initiated and the unit will restart after during troubleshooting or verification of unit these delays expire.

  • Page 18: Hot Gas Reheat

    (Available on size 015 and larger) compressor discharge gas to the low temperature LV series heat pumps size 015 and larger can be liquid entering the evaporator coil. This hot gas provided with hot gas reheat for active serves to warm the evaporator coil and reduces dehumidification.

  • Page 19: Economizer

    Options | 19 Economizer The LV series economizer is designed for LV series heat pumps can be provided an optional cooling only. If heating economizer operation water side economizer. The water side economizer option allows a cooling demand to be...

  • Page 20: Application Considerations

    20 | Application Considerations LV Heat PumpSeries APPLICATION CONSIDERATIONS It is imperative that all air is eliminated from Boiler/Cooling Tower Systems the closed loop side of the heat exchanger To assure adequate cooling and heating to prevent condenser fouling. performance, the cooling tower and boiler water loop temperature should be maintained between No unit should be connected to the supply or 50°F to 75°F in the heating mode and 60°F to...

  • Page 21: Geothermal Closed Loop Systems

    Application Considerations | 21 Geothermal Closed Loop Systems Utilizing Ground Loop Pumping Package (GLP), Operation of an LV Series unit on a closed loop makes the installation easy. Anti-freeze solutions application requires the extended range option. must be utilized when low loop temperatures are Closed loop and pond applications require expected to occur.

  • Page 22: Open Well Water Systems

    22 | Application Considerations LV Heat PumpSeries Open Well Water Systems An upsized VA transformer may be required in either case. The discharge water from the heat When a water well is used exclusively for supplying pump is not contaminated in any manner and can water to the heat pump, the pump should operate be disposed of in various ways depending on local only when the heat pump operates.

  • Page 23: Certified Performance Table

    LV Heat Pump Series Certified Performance Table | 23 CERTIFIED PERFORMANCE TABLE Table 4: LV Series AHRI Ratings PSC Motor (Base) MODEL WLHP GLHP Cooling Heating Cooling Heating Capacity Capacity Capacity Capacity LV007 6,100 12.20 7,800 5.30 6,800 15.10 4,900 3.40...

  • Page 24: Fan Motor Options

    Permanent Split Capacitor Motors (PSC) the fan relay. The standard motor for all LV series heat pumps is 5. If the motor is a 460 V motor and the speed is a PSC motor. For all models other than 575 V changed from high to medium or low, connect units, the supplied motor is a three speed motor.
  • Page 25 LV Heat Pump Series Fan Motor Options | 25 Table 5: PSC Motor Performance Data LV-041 1220 1190 1150 1120 1080 1020 1200 1450 1380 1320 1250 1190 1120 1210 1210 1190 1160 1120 1080 LV-042 1460 1450 1430 1390 1330 1250 1400...

  • Page 26: Constant Torque Motors (Ecm)

    26 | Fan Motor Options LV Heat PumpSeries Constant Torque Motors (ECM) 1. Disconnect power to the heat pump. 2. Remove the blower access panel. For installations where the efficiency of an electronically commutated brushless DC motor 3. Remove the speed tap wire from the terminal it (ECM) motor is required, but the features of a is currently connected to and connect it to the constant airflow motor are not required, the LV...
  • Page 27 LV Heat Pump Series Fan Motor Options | 27 Table 6: Constant Torque Blower Motor Data 1130 1100 1070 1030 1000 LV-041 1200 1210 1180 1143 1100 1060 1010 1290 1260 1217 1170 1120 1050 1370 1340 1290 1240 1180 1090 1000 1270...

  • Page 28: Constant Airflow Motors (Ecm)

    (such as with high MERV value filters) Board section of this manual) the LV series is offered with a constant air flow ECM motor option. This option provides ECM 4. A “TEST” mode that operates the motor at a motor efficiency combined with a constant air 70% torque setting.
  • Page 29 LV Heat Pump Series Fan Motor Options | 29 Table 7: Constant Airflow Motor Performance Table B - Low 1190 1190 1190 1190 1190 1190 1190 1190 1190 1190 LV-042 Normal 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 B - Hi...

  • Page 30: Standard Blower Motor

    30 | Standard Blower Motor LV Heat PumpSeries STANDARD BLOWER MOTOR Table 8: Electrical Data Table - Standard Blower Motor Compressor MODEL Voltage Code Rated Voltage Voltage Min/Max Fan Motor Fan Motor HP Total Unit FLA Min Circuit Max Fuse 208-230/60/1 187/253 17.7...
  • Page 31 LV Heat Pump Series Standard Blower Motor | 31 Table 8: Electrical Data Table - Standard Blower Motor 208-230/60/1 187/253 28.3 0.75 33.8 40.9 208-230/60/3 187/253 19.2 0.75 24.7 29.5 LV070 460/60/3 414/506 66.1 0.75 11.5 13.7 575/60/3 517/633 55.3 0.75 11.2 LV Heat Pump Series...
  • Page 32 32 | Standard Blower Motor LV Heat PumpSeries Constant Torque ECM Blower Motor Table 9: Electrical Data Table - Constant Torque ECM Blower Motor Compressor Total MODEL Voltage Rated Voltage Motor Unit Circui Code Voltage Min/Max Motor Fuse 208-230/60/1 187/253 0.33 LV015 265/60/1...

  • Page 33: Constant Cfm Ecm Blower Motor

    LV Heat Pump Series Standard Blower Motor | 33 Constant CFM ECM Blower Motor Table 10: Electrical Data Table - Constant CFM ECM Blower Motor Compressor Total MODEL Voltage Rated Voltage Motor Unit Circui Code Voltage Min/Max Motor Fuse 208-230/60/1 187/253 0.33 LV015...

  • Page 34: Unit Start Up

    34 | Unit Start Up LV Heat PumpSeries UNIT START UP 2. An annual “checkup” is recommended by a licensed refrigeration mechanic. Recording the 1. Set the thermostat to the highest setting. performance measurements of volts, amps, 2. Set the thermostat system switch to “COOL”, and water temperature differences (both and the fan switch to the “AUTO”...

  • Page 35: Unit Check Out 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: (954) 776-5471 Bosch.Fhp.TechSupport@us.bosch.com...

  • Page 36: Troubleshooting

    36 | Troubleshooting LV Heat PumpSeries TROUBLESHOOTING UNIT TROUBLESHOOTING Problem Mode Check Possible Cause Action Cooling Heating Check water valves and/or pumps High Pressure fault - no for proper operation. Check for or low water flow water coil blockage. High Pressure fault - high Check water temperature - is it in water temperature range?
  • Page 37 LV Heat Pump Series Troubleshooting | 37 UNIT TROUBLESHOOTING Problem Mode Check Possible Cause Action Check condensate pan for high Condensate fault - poor water level. Check drain line for drainage blockages, double trapping or inadequate trapping. Is fault LED Blinking Check condensate pan for high 4 times? water level.
  • Page 38 38 | Troubleshooting LV Heat PumpSeries UNIT TROUBLESHOOTING Problem Mode Check Possible Cause Action Check for supply voltage at the load Open compressor side of the contactor. For 3 phase overload models check phase rotation and voltage at all 3 phases. Look for signs of heat on the wiring insulation.
  • Page 39 LV Heat Pump Series Troubleshooting | 39 UNIT TROUBLESHOOTING Problem Mode Check Possible Cause Action Check for 24 VAC between "G" and "C". Check all wiring connections. No fan operation signal Make sure that the thermostat connection plug is securely connected.
  • Page 40 40 | Troubleshooting LV Heat PumpSeries UNIT TROUBLESHOOTING Problem Mode Check Possible Cause Action Fan speed setting too Consult blower performance table Air flow too high high and reduce fan speed if possible. Loss of refrigeration Check refrigerant pressures with Low refrigerant capacity gauge set.

  • Page 41: Temperature/Pressure Table

    LV Heat Pump Series Temperature/Pressure Table | 41 TEMPERATURE/PRESSURE TABLE OPERATING DATA COOLING HEATING ENTERING SUCTION DISCHARGE SUCTION DISCHARGE WATER WATER TEMP, WATER FLOW PRESSURE PRESSURE WATER TEMP AIR TEMP PRESSURE PRESSURE TEMP DROP, AIR TEMP MODEL ˚F PSIG PSIG RISE, ˚F DROP, ˚F PSIG...
  • Page 42 42 | Temperature/Pressure Table LV Heat PumpSeries 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 18-21 162-198 293-358 20-24 50˚ 121-148 207-253 19-23 170-208 300-366 21-25 131-160...
  • Page 43 LV Heat Pump Series Temperature/Pressure Table | 43 72-87 296-361 21-25 30˚ 75-92 301-368 22-26 114-139 155-190 14-17 22-27 88-107 314-384 24-29 40˚ 108-132 147-180 10-12 23-28 92-112 321-392 25-30 116-142 192-234 13-16 21-26 104-127 333-407 27-33 50˚ 111-135 182-222 9-12 22-27 109-133...
  • Page 44 44 | Temperature/Pressure Table LV Heat PumpSeries 64-78 248-303 15-18 30˚ 67-82 254-311 16-19 109-134 183-224 18-22 19-23 75-91 261-319 17-21 40˚ 105-128 172-210 10-12 20-25 79-96 267-327 18-23 118-144 214-261 18-22 19-23 142-173 273-334 8-10 20-24 50˚ 113-138 201-245 10-12 20-24 149-182...
  • Page 45 LV Heat Pump Series Temperature/Pressure Table | 45 68-84 256-313 19-23 30˚ 73-89 261-319 20-25 117-143 182-222 15-19 21-26 81-99 277-339 22-26 40˚ 114-139 170-208 11-14 22-27 86-105 283-346 23-28 120-147 215-263 15-18 20-25 93-114 299-365 24-29 50˚ 117-143 201-246 11-14 21-26 99-121...

  • Page 46: Waterside Pressure Drop Table

    46 | Waterside Pressure Drop Table LV Heat PumpSeries WATERSIDE PRESSURE DROP TABLE Water Flow Water Side Pressure Drop with Water Side Pressure Drop with Internal Model Rate (GPM) out Internal Valve (PSI) Valve (PSI) LV007 LV009 LV012 LV015 12.5 LV018 LV024 11.4...

  • Page 47: Compressor Characteristics

    LV Heat Pump Series Compressor Characteristics | 47 COMPRESSOR CHARACTERISTICS Compressor Data Plate Cold Winding Resistance Values (+/- 10%) Voltage Compressor Model Rated Voltage Capacitor Code Description Single Phase Three Phase (μF/V) Phase Line-Line LV007 VT & CF 208-230/60/1 RGA5453BXD 17.7 4.08 6.63...

  • Page 48: Water Coil Volume

    Total Left Front* Right Front* Left Back Right Back Left Front* Right Front* Left Back Right Back LV007-HZ LV009-HZ LV012-HZ LV015-HZ LV018-HZ LV024-HZ LV030-HZ LV036-HZ LV042-HZ LV048-HZ LV060-HZ LV070-HZ *Front is control box end CORNER WEIGHTS (HZ) LV Series Coaxial Coil Volume (gal) 0.04 0.06 0.08 0.09 0.14 0.14 0.24 0.27 0.27 0.27 0.49 0.62 0.62...

  • Page 49: Wiring Diagrams

    LV Heat Pump Series Wiring Diagrams | 49 WIRING DIAGRAMS Figure # 14 Dwg LV111000- Single Phase Base Unit, PSC Fan Motor LV Heat Pump Series 8 733 905 683 (2013/04)
  • Page 50 50 | Wiring Diagrams LV Heat PumpSeries Figure # 15 Dwg 311000 8 733 905 683 (2013/04) Subject to change without prior notice LV Heat Pump Series...
  • Page 51 LV Heat Pump Series Wiring Diagrams | 51 Figure # 16 Dwg LV111007- Single Phase Base Unit, Constant Torque ECM Fan Motor LV Heat Pump Series 8 733 905 683 (2013/04)
  • Page 52 52 | Wiring Diagrams LV Heat PumpSeries Figure # 17 Dwg LV111003 - Single Phase Base Unit, Constant Airflow ECM Fan Motor 8 733 905 683 (2013/04) Subject to change without prior notice LV Heat Pump Series...
  • Page 53 LV Heat Pump Series Wiring Diagrams | 53 Figure # 18 Dwg LV111001- Three Phase Base Unit, PSC Fan Motor LV Heat Pump Series 8 733 905 683 (2013/04)
  • Page 54 54 | Wiring Diagrams LV Heat PumpSeries Figure # 19 Dwg LV111002- Single Phase Unit with Waterside Economizer, PSC Fan Motor 8 733 905 683 (2013/04) Subject to change without prior notice LV Heat Pump Series...
  • Page 55 LV Heat Pump Series Wiring Diagrams | 55 Figure # 20 Dwg 311003- Three Phase Base Unit, Constant Airflow ECM Fan Motor LV Heat Pump Series 8 733 905 683 (2013/04)

  • Page 56: Dimensional Drawings

    56 | Dimensional Drawings LV Heat PumpSeries DIMENSIONAL DRAWINGS Vertical 8 733 905 683 (2013/04) Subject to change without prior notice LV Heat Pump Series...

  • Page 57: Horizontal

    LV Heat Pump Series Dimensional Drawings | 57 Horizontal LV Heat Pump Series 8 733 905 683 (2013/04)

  • Page 58: Notes

    58 | Notes LV Heat PumpSeries NOTES 8 733 905 683 (2013/04) Subject to change without prior notice LV Heat Pump Series...
  • Page 59 LV Heat Pump Series Notes | 59 LV Heat Pump Series 8 733 905 683 (2013/04)
  • Page 60 601 N.W. 65th Court, Ft. Lauderdale, FL 33309 Phone: 954-776-5471 | Fax: 954-776-5529 www.boschtaxcredit.com |www.bosch-climate.us Revised 04-13...

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