Download Print this page

Bosch LM024 Operating Instructions Manual

Lm cs series
Hide thumbs

Advertisement

LM CS Series Heat Pump
LM024 | LM036 | LM048 | LMO60 | LM070
Installation, Operation and Maintenance Manual

Advertisement

loading

  Related Manuals for Bosch LM024

  Summary of Contents for Bosch LM024

  • Page 1 LM CS Series Heat Pump LM024 | LM036 | LM048 | LMO60 | LM070 Installation, Operation and Maintenance Manual...
  • Page 2: Table Of Contents

    LM CS Series Heat Pump CONTENTS CS/AH Pairing ..............3 Key to Symbols..............3 Safety Warnings..............3 LM CS Standard package............ 4 GENERAL DESCRIPTION ............ 4 MOVING AND STORAGE ............. 4 INITIAL INSPECTION ............4 LOCATION................. 5 Condensing Section ............. 5 Air Handler ..............
  • Page 3: Cs/Ah Pairing

    Paired Air Handler Before performing service or maintenance Unit 1 Unit 2 operations on the system, turn off main LM024-1CSC LM024-1AVX LM024-1AHX power to the unit. Electrical shock could LM036-1CSC LM036-1AVX LM036-1AHX cause personal injury or death. LM048-1CSC LM048-1AVX LM048-1AHX...
  • Page 4: Lm Cs Standard Package

    4 | LM CS Standard package LM CS Series Heat Pump LM CS STANDARD PACKAGE The Water-to-Air Heat Pumps are designed to operate with entering fluid temperature between 20°F to 80°F in the heating mode and between 50°F to 110°F in the cooling mode. 50°F Minimum Entering Water Temperature (EWT) for well water applications with sufficient water flow to prevent freezing.
  • Page 5: Location

    LM CS Series Heat Location | 5 LOCATION INSTALLATION To maximize system performance, efficiency and Loosen compressor mounting bolts. reliability, and to minimize installation costs, it is always best to keep the refrigerant lines as short as possible. Every effort should be made to locate NOTE: The installer should comply with all the air handler and the condensing section as close as possible to each other.
  • Page 6: Condensate Drain

    6 | Condensate Drain LM CS Series Heat Pump CONDENSATE DRAIN Use cupra-nickel condenser in ground water application due to possibility of containing high mineral and corrosive properties Both the supply and discharge water lines will sweat if subjected to low water temperature. These lines should be insulated to prevent damage from condensation.
  • Page 7: Safety Devices And The Upm Controller

    LM CS Series Heat Electrical | 7 The unit is provided with a concentric knock-out [9] ECM Interface Board(Option, mounts on E-Box for attaching common trade sizes of conduit, route cover) power supply wiring through this opening. [10] Comfort Alert Module (Option) Always connect the ground lead to the grounding [11] DDC (Option) lug provided in the control box and power leads to...
  • Page 8 8 | Electrical LM CS Series Heat Pump • Water side freeze protection sensor, mounted If the unit is being connected to a thermostat close to condensing water coil, monitors with a malfunction light, this connection is made refrigerant temperature between condensing at the unit malfunction output or relay.
  • Page 9 LM CS Series Heat Electrical | 9 • MALFUNCTION OUTPUT: Alarm output is If pulse is Normally Open (NO) dry contact. UPM Board Factory Default Settings selected the alarm output will be pulsed. The TEMP 30°F fault output will depend on the dip switch setting for "ALARM".
  • Page 10: Comfort Alert Module

    10 | Comfort Alert Module LM CS Series Heat Pump COMFORT ALERT MODULE set to 4) within an hour the UPM controller will enter into a hard lockout condition. It will The Comfort Alert diagnostics module (CADM) is a constantly monitor the refrigerant temperature breakthrough innovation for troubleshooting heat with the sensor mounted close to the pump system failures.
  • Page 11 25 FT. 35 FT. 45 FT. 50 FT. 75 FT Charge (Oz)* LIQ. SUC. LIQ. SUC. LIQ. SUC. LIQ. SUC. LIQ. SUC. LM024 LM036 LM048 LM060 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 LM070 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 CAPACITY MULTIPLIER 1.00 .995...
  • Page 12: Options

    12 | Options LM CS Series Heat Pump OPTIONS Number of factory installed options are available on LM CS Series of Heat Pumps. The following details the purpose, function and components of each option. Pump Status Switch The pump status switch is a Current Transformer (CT) that monitors the current flow from the condenser pump motor.
  • Page 13: Sequence Of Operation

    LM CS Series Heat Sequence of Operation | 13 SEQUENCE OF OPERATION Once the thermostat is satisfied, the compressor shuts down and the fan ramps down either fan only Cooling Mode mode or off over a span of 30 seconds. If Energizing the “O”...
  • Page 14 14 | Sequence of Operation LM CS Series Heat Pump 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 Record Alarm Start Counter (If Applicable)
  • Page 15: Application Considerations

    LM CS Series Heat Application Considerations | 15 APPLICATION CONSIDERATIONS pressure must always be maintained in the heat exchanger. This can be accomplished with either Well Water Systems control valve or a bladder type expansion tank. Copper is adequate for ground water that is not When using a single water well to supply both high in mineral content.
  • Page 16 16 | Application Considerations LM CS Series Heat Pump It is imperative that all air be eliminated from the Pressure/temperature ports are recommended in closed loop side of the heat exchanger to insure both supply and return lines for system flow against fouling.
  • Page 17: Geothermal Systems

    LM CS Series Heat Application Considerations | 17 Geothermal Systems installation easy. Anti-freeze solutions are utilized when low evaporating conditions are expected to Closed loop and pond applications require occur. Refer to the GLP installation manuals for specialized design knowledge. No attempt at these more specific instructions.
  • Page 18: System Checkout

    18 | System Checkout LM CS Series Heat Pump SYSTEM CHECKOUT UNIT START-UP After completing the installation, and before 1. Put the UPM board in “test” mode. energizing the unit, the following system checks 2. Set the thermostat to the highest setting. should be made: 3.
  • Page 19: Maintenance

    60 days is sufficient. In other applications such as motels, where daily LM024 vacuuming produces a large amount of lint, filter changes may need to be as frequent as biweekly.
  • Page 20: 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 21: Troubleshooting

    LM CS Series Heat Troubleshooting | 21 TROUBLESHOOTING Troubleshooting Information Solution column may reflect a possible fault that may be one of, or a combination of causes and solutions. Check each cause and adopt "process of elimination" and or verification of each before making any conclusion.
  • Page 22 Compressor Ohms UPM Board LED Indications Model Start Winding Run Winding Indication Color Blinks Description LM024 1.64 GREEN Solid 18-30 VAC Power is present LM036 1.52 0.88 High pressure lockout LM048 1.86 0.52...
  • Page 23 LM CS Series Heat Troubleshooting | 23 HRP Troubleshooting Problem Possible Cause Checks and Corrections NO FLOW No Power Check power supply LOW FLOW On/Off Switch Position Set switch to “ON” position Compressor Contactor Engage heat pump contactor Broken or loose wires Repair or tighten wires Air Lock Purge air from piping system...
  • Page 24 24 | Troubleshooting LM CS Series Heat Pump Comfort Alert Module -Flash Codes Status LED Status LED Description Status LED Troubleshooting Information Solution YELLOW "ALERT” Open Start Circuit Run capacitor has failed (may not be bad, verify) FLASH CODE 6 Current only in run Open circuit in compressor start wiring or connections circuit...
  • Page 25: Operating Temperatures And Pressures

    14-17 18-20 98-122 291-356 20-23 50° 124-151 204-250 19-22 110-130 298-364 21-24 134-163 249-305 13-16 17-20 112-136 304-372 8-10 22-26 LM024 60° 128-156 233-287 18-21 117-143 312-381 23-28 Part 138-168 281-341 13-16 17-19 124-152 318-389 9-11 24-29 Load 70° 133-161...
  • Page 26 26 | Operating Temperatures and Pressures LM CS Series Heat Pump 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 27 LM CS Series Heat Operating Temperatures and Pressures | 27 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 18-22...
  • Page 28 28 | Operating Temperatures and Pressures LM CS Series Heat Pump 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 29 LM CS Series Heat Operating Temperatures and Pressures | 29 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 17-21...
  • Page 30: Wiring Diagrams

    30 | Wiring Diagrams LM CS Series Heat Pump WIRING DIAGRAMS Figure # 17 8 733 920 847 (2014/01) Subject to change without prior notice LM CS Series Heat Pump...
  • Page 31: Dimensional Drawings

    LM CS Series Heat Dimensional Drawings | 31 DIMENSIONAL DRAWINGS Revised 01-14 8 733 920 847 (2014/01)
  • Page 32: Notes

    32 | Notes LM CS Series Heat Pump NOTES 8 733 920 847 (2014/01) Subject to change without prior notice LM CS Series Heat Pump...
  • Page 33 LM CS Series Heat Notes | 33 Revised 01-14 8 733 920 847 (2014/01)
  • Page 34 34 | Notes LM CS Series Heat Pump 8 733 920 847 (2014/01) Subject to change without prior notice LM CS Series Heat Pump...
  • Page 35 LM CS Series Heat Notes | 35 Revised 01-14 8 733 920 847 (2014/01)
  • Page 36 601 N.W. 65th Court, Ft. Lauderdale, FL 33309 Phone: 866-642-3198 | Fax: 954-776-5529 www.boschtaxcredit.com | www.FHP-MFG.com Revised 01-14...

This manual is also suitable for:

Lmo60Lm036Lm070Lm048