4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 1 Key to Symbols and Safety Instructions 1.2 Safety Please read before proceeding 1.1 Key to Symbols Warnings This document contains a wiring diagram and service information.
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Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 5 WARNING: PERSONAL INJURY/ENVIRONMENTAL HAZARD CAUTION: BURN HAZARD Any attempt to repair a central air conditioning Failure to follow this warning will result in abrupt ...
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 9 3.3 Dimensions - Left and Top Top view Left side view 5-1/16" 6-5/8" 11-3/4" 6-5/8" Figure 4 BTC 761701311 C | 04.2020 Data subject to change...
1 0 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 4 Installation Exercise care when moving the unit. Do not remove any packaging until the unit is near the place of installation. Rig the unit by attaching chain or 4.1 Pre-Installation...
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Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 11 Units should be elevated 3-12 inches above the pad or rooftop, depending on local weather. This additional height will allow drainage of snow and will permit condensate water to drain when the unit is in defrost mode.
1 2 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 4.4 Rooftop Installation - Curb Mounting The manufacturer does not supply roof curbs, they must be fi eld supplied. Refer to Figure 11 for recommended roof curb dimensions. On applications when a roof curb is used, the unit must be positioned on the curb so the front of the unit is tight against the curb.
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 13 5 Airfl ow Performance Airfl ow performance data is based on cooling performance with a coil and no fi lter in place. Check the performance table (Table 6) for appropriate unit size selection.
1 4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 6 Indoor Fan Motor Function Mid- SW6-4 SW6-1 SW6-2 High high System Operation and Function This unit can run with either 4 Stage Fan Control or 2 Stage Fan Control.
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 15 7 Ductwork Be sure to note supply and return openings. Refer to Figure 3 for information concerning supply and return air duct Field ductwork must comply with the National Fire Protection Association dimensions.
1 6 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 8 Condensate Drain Connection 9 Air Filter (Not Factory-Installed) Unit should be installed in accordance with national and local safety Filters and fi lter racks are not included with the unit and must be fi eld codes, including but not limited to ANSI/NFPS No.
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 17 10 Electrical Wiring 10.3 Control Wiring Field wiring must comply with the National Electric Code (NEC) and any applicable local ordinance. WARNING: FIRE HAZARD Low voltage control wiring should not be run in ...
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1 8 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Support 3H and 2C thermostat Support 4H and 2C thermostat BROWN BROWN YELLOW YELLOW PURPLE PURPLE GREEN GREEN BLUE BLUE WHITE WHITE WHITE/BLACK GRAY GRAY...
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 19 11 Start Up WARNING: ELECTRICAL SHOCK 11.1 System Start Up Label all wiring prior to disconnection when Ensure Sections 4, 5, 6, 7, and 8 have been completed.
2 0 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 12 System Charge Adjustment The unit comes precharged from the factory with 7-8 lb-oz of 80 ºF refrigerant. Follow Section 12 for charge adjustments i.e if components have been replaced, or if there is a suspected leak.
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Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 21 Connect gauges to refrigerant bottle and unit as illustrated (Figure 27 and 28). Purge all hoses. Open tank. Stop adding refrigerant when subcooling matches the charging chart (Table 14) Final Subcooling value.
2 2 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 13 System Operation and Troubleshooting 13.2 Sensors (Thermistors/Pressure Transducer) 13.1 Control Logic Description T1 = Return Air Temperature — Indoor Fan Control The variable speed system adopts the same 24VAC control as any ...
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 23 13.3 Defrost Description Manual Defrost: System must have a call for heat and have been operating for a The Demand Defrost Control (DDC) monitors the ODU coil ...
2 4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 13.6 Protection Functions Outdoor coil temperature protection (T3) i. If T3 > 143.6°F, compressor is de-energized. ii. If T3 < 129.2°F, compressor is energized.
2 6 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual 13.8 Parameter Point Check Table Normal Status, last two digits will display under the following To display system parameters, press the “Check” button to ...
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 27 13.9 Control Board Overview Outdoor Unit Control Board for 3 Ton Model No. Function description Compressor crankcase heater port Reserve Reversing valve port Thermostat wire connections...
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2 8 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Indoor Unit Control Board for 3 Ton Model No. Function description Thermostat wire connection terminal Electric Heat Kit E port Thermostat wire port (to ODU board)
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3 2 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Error Code Description Condenser coil sensor (T3) is seated fault in cooling E7 Compressor discharge sensor (T5) is seated fault) Diagnosis Handling Compressor discharge sensor (T5) is seated fault...
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Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 33 Error Code Description EEPROM fault E5 (High/low voltage protection) Diagnosis Handling Communication fault in main control chip High/low voltage protection Check whether the power Make sure the power...
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3 4 | Bosch Inverter Ducted Packaged Heat Pump 3 Ton Installation & Operation Manual Error Code Description Error Code Description L0-L9 IPM module protection Ambient Temperature Limited Table 29 Table 30 When error codes L0-L9 appears occasionally, no action is necessary. The When the ambient temperature returns to within the system will restart automatically after 6 minutes.
Installation & Operation Manual Bosch Inverter Ducted Packaged Heat Pump 3 Ton | 39 14 Maintenance 14.2 Regular Maintenance Your heat pump must be inspected regularly by a qualifi ed service technician. For continuing high performance and to minimize possible equipment failure, periodic maintenance must be performed on Inspect the air fi...
United States Bosch Thermotechnology Corp. 65 Grove Street Watertown, MA 02472 Tel: 866-642-3198 Fax: 603-965-7581 www.boschheatingandcooling.com BTC 761701311 C | 04.2020...