Bosch LM024 Installation, Operation And Maintenance Manual
Lm ah series heat pump
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Also See for LM024:
- Operating instructions manual (36 pages) ,
- Installation, operation and maintenance manual (60 pages) ,
- Installation manual (12 pages)
Related Manuals for Bosch LM024
Summary of Contents for Bosch LM024
- Page 1 LM AH Series Heat Pump LM024 | LM036 | LM048 | LMO60 | LM070 Installation, Operation and Maintenance Manual...
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Page 2: Table Of Contents
LM Series Heat Pump AH CONTENTS CS/AH Pairing ..............3 Key to Symbols..............3 Safety Warnings..............3 LM AH Standard Package ........... 4 INITIAL INSPECTION ............4 GENERAL DESCRIPTION ............ 4 MOVING AND STORAGE ............. 4 SAFETY CONSIDERATIONS..........4 LOCATION................. 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 Ah Standard Package
4 | LM AH Standard Package LM Series Heat Pump AH In the cooling mode, the air coil in the air handler To avoid equipment damage, DO NOT use section serves as an evaporator and the water-to- these units as a source of heating or cooling refrigerant heat exchanger serves as a condenser. -
Page 5: Location
LM Series Heat Pump LOCATION | 5 LOCATION INSTALLATION To maximize system performance, efficiency and Remove all shipping blocks from the inside reliability, and to minimize installation costs, it is and/or putside of the air handler section always best to keep the refrigerant lines as short prior to final installation. -
Page 6: Condensate Drain
6 | CONDENSATE DRAIN LM Series Heat Pump AH The secondary drain pan is usually placed on a The air handler should be pitched approximately 1/ plywood base isolated from the ceiling joists by 4" towards the drain in both directions, to facilitate additional layers of vibration absorbing mesh. -
Page 7: Electrical
LM Series Heat Pump ELECTRICAL | 7 ECM Interface Board The return air inlet to the heat pump must have at least one 90 degree turn away from the space return air grille. If air noise or excessive air flow are a problem, the blower speed can be changed to a lower speed to reduce air flow. -
Page 8: Thermostat Connections
LM Series Heat Pump AH Harness wiring can be loose, based on the Packaged heat pumps are equipped with options installed for the unit. See the Wiring detachable Thermostat connectors. These Harness Drawing notes for further details. connectors are located in different locations based on the blower motor that is installed in the unit. - Page 9 LM Series Heat Pump If the unit is being connected to a thermostat with Just above the connector block is a single red LED a malfunction light, this connection is made at the labeled CFM that will blink intermittently when the unit alarm output.
- Page 10 10 | LM Series Heat Pump AH Figure 11: Motor Profile Air-Flow Table CFM EMERG PLUS MINUS TAP COOL/ MODEL COOL/ COOL/ ONLY HEAT HEAT HEAT/DELAY HEAT HEAT 1050 1225 1225 1225 1400 1050 1500 1500 1500 1700 1275 1200 1500 2000 2000...
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Page 11: Options
Figure 12: Heater Kit Compatibility Table Btu/h Product Series Compatibility Heater Model 208V 230V 208V 230V LM024 LM036 LM048 LM060 LM070 HK/HP050-1201 12300 16300 HK/HP100-1201 24600 32700 HK/HP150-1201 10.8... -
Page 12: Heating Mode
12 | SEQUENCE OF OPERATION LM Series Heat Pump AH Heating Mode Emergency heat (W2/EM) energizes the emergency heat relay in the heater control box, Heating operation follows the same sequence as bringing on all of the heating elements at once. The cooling only without the “O” terminal. During fan immediately ramps up to full electric heat air heating operation if the thermostat calls for flow. -
Page 13: Well Water Systems
LM Series Heat Pump WELL WATER SYSTEMS | 13 WELL WATER SYSTEMS Consult the dimensional drawingsfor piping sizes. Teflon tape sealer should be used when (Figure #10) connecting to the unit to insure against leaks and In well water applications water pressure must possible heat exchanger fouling. - Page 14 14 | COOLING TOWER/BOILER SYSTEMS LM Series Heat Pump AH Figure # 15 Well Water Applications [1] Line Voltage Disconnect (unit) [2] Flex Duct Connect [3] Low Voltage Control Connection [4] Line Voltage Connection [5] Vibration Pad [6] P/T Ports [7] Hose Kits (optional) [8] Ball Valves [9] Solenoid Valve Slow Closing [10] Condensate Drain Connection...
- Page 15 LM Series Heat Pump COOLING TOWER/BOILER SYSTEMS | 15 Figure # 16 Cooling Tower/Boiler Application [1] Line Voltage Disconnect (unit) Typical Layout Illustration. See Figure #5 for [2] Low Voltage Control Connection Condensate Drain Connection [3] P/T Plugs (optional) [4] Hose Kits (optional) [5] Ball Valves [6] Supply and Return lines of central system [7] Flex Duct Connection...
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Page 16: Earth Coupled Systems
16 | EARTH COUPLED SYSTEMS LM Series Heat Pump AH Figure # 17 Earth Coupled Application EARTH COUPLED SYSTEMS Typical Layout Illustration. See Figure #5 for (Figure #13) Condensate Drain Connection Closed loop and pond applications require specialized design knowledge. No attempt at these installations should be made unless the dealer has received specialized training. -
Page 17: System Checkout
LM Series Heat Pump SYSTEM CHECKOUT | 17 SYSTEM CHECKOUT MAINTENANCE After completing the installation, and before 1. Filter changes or cleanings are required at energizing the unit, the following system checks regular intervals. The time period between should be made: filter changes will depend upon type of environment the equipment is used in. -
Page 18: Troubleshooting
18 | Troubleshooting LM Series Heat Pump AH 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 19: Unit Lockouts
LM Series Heat Pump Troubleshooting | 19 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 20: 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 21 LM Series Heat Pump Troubleshooting | 21 COOLING HEATING Entering Water Suction Discharge Water Suction Discharge Water Model Water Flow Pressure Pressure Temp Temp Pressure Pressure Temp Temp Temp. °F PSIG Rise °F Drop °F PSIG PSIG Drop °F Rise °F PSIG 74-90 244-299...
- Page 22 22 | Troubleshooting LM Series Heat Pump AH COOLING HEATING Entering Water Suction Discharge Water Suction Discharge Water Model Water Flow Pressure Pressure Temp Temp Pressure Pressure Temp Temp Temp. °F PSIG PSIG Rise°F Drop °F PSIG PSIG Drop °F Rise °F 68-84 256-313...
- Page 23 LM Series Heat Pump Troubleshooting | 23 COOLING HEATING Entering Water Suction Discharge Water Suction Discharge Water Model Water Flow Pressure Temp Temp Pressure Pressure Temp Temp Pressure Temp. °F PSIG Rise °F Drop °F PSIG PSIG Drop °F Rise °F PSIG 71-87 259-316...
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Page 24: Wiring Diagrams
24 | Wiring Diagrams LM Series Heat Pump AH WIRING DIAGRAMS Figure # 18 LM - No Electric Heat Kit 8 733 920 847 (2014/01) Subject to change without prior notice LM Series Heat Pump AH... - Page 25 LM Series Heat Pump Wiring Diagrams | 25 Figure # 19 LM- With Electric Heat Kit Revised 01-14 8 733 920 847 (2014/01)
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Page 26: Dimensional Drawings
26 | Dimensional Drawings LM Series Heat Pump AH DIMENSIONAL DRAWINGS 8 733 920 847 (2014/01) Subject to change without prior notice LM Series Heat Pump AH... - Page 27 LM Series Heat Pump Dimensional Drawings | 27 Revised 01-14 8 733 920 847 (2014/01)
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Page 28: Notes
28 | Notes LM Series Heat Pump AH NOTES 8 733 920 847 (2014/01) Subject to change without prior notice LM Series Heat Pump AH... - Page 29 LM Series Heat Pump Notes | 29 Revised 01-14 8 733 920 847 (2014/01)
- Page 30 30 | Notes LM Series Heat Pump AH 8 733 920 847 (2014/01) Subject to change without prior notice LM Series Heat Pump AH...
- Page 31 LM Series Heat Pump Notes | 31 Revised 01-14 8 733 920 847 (2014/01)
- Page 32 32 | Notes LM Series Heat Pump AH 8 733 920 847 (2014/01) Subject to change without prior notice LM Series Heat Pump AH...
- Page 33 LM Series Heat Pump Notes | 33 Revised 01-14 8 733 920 847 (2014/01)
- Page 34 601 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...