Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
3 Ton Unit Dimensions Heat Pump Model Net Weight Gross Weight 3 Ton Model 320 lbs (145kg) 326 lbs (148kg) Table 4 3 Ton Unit Unit Weights Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
5 Ton Unit Dimensions Heat Pump Model Net Weight Gross Weight 5 Ton Model 434 lbs (197kg) 443 lbs (201kg) Table 6 5 Ton Unit Unit Weights | 11 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
Spreader bars, whose length exceeds the largest dimension across the unit, MUST be used across the top of the unit. 1 4 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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Every three months, wash the outdoor coil and any exposed cabinet surfaces. | 15 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
F or instructions on how to select fan speeds, refer to Section 6 workmanship. of this manual. 1 6 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
Wiring Diagram section for wiring instructions. If Y1 and Y2 are jumped, the unit will only run in high stage fan speed. | 17 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
DO NOT insert the screws through the casing. Outdoor ductwork must be insulated and waterproofed. 1 8 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
Tefl on paste, silicone or Tefl on tape and install by hand tightening. When making drain fitting connections to drain pan, do not overtighten. Over-tightening fi ttings can split pipe connections on the drain pan. | 19 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
National Electric Code (NEC). Grounding may be accomplished by attaching ground wire(s) to ground lug(s) provided in the unit wiring compartment. 2 0 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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Y2 wiring is optional for 4 speed fan control. For 2 stage fan B wire must be used with heat pump system only, the control Y2 wiring is required. reversing valve energizes in heating. | 21 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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WARNING: ELECTRICAL SHOCK / FIRE HAZARD Any power supply and circuits must be wired and protected in accordance with federal, state and local electrical codes. 2 2 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
Wait one (1) hour before starting the unit if compressor crankcase heater is used and the outdoor ambient temperature is below 70 °F. 60 MIN. Figure 21 Set system thermostat to ON. Figure 22 | 23 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
Accelerated cooling/heating function changes the initial target coil temperature to provide "enhanced comfort" by increasing unit capacity. 2 6 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
If TF > 165°F, the compressor and outdoor fan will stop. ii. If TF < 140°F, the compressor and outdoor fan will restart. 2 8 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
Description Always ON Normal Dehumidifi cation mode active Reserved Anti-cold air function active Temperature sensor fault (T1) Temperature sensor fault (T2) Communication error Table 21 | 29 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
21. ECM Motor Port 22. Compressor: W port 23. Compressor: V port 24. Compressor: U port 25. Power input 26. Power input 27. Reserve Figure 31 | 31 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
21. ECM Motor Port 22. Compressor: W port 23. Compressor: V port 24. Compressor: U port 25. Power input 26. Power input 27. Reserve Figure 32 3 2 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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Thermostat wire port (to ODU board) Transformer port Blower motor port T1, T2 sensor port Communication port (To ODU board) Reserve 10. 3 Amp Replaceable Fuse Figure 33 | 33 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
10 mins Check whether the Replace the board compressor current is more than 18A when protection Replace the compressor Figure 36 3 4 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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Operate normally normal for throttle when whether there`s the same fault again,if the same, replace heating (wire seated .coil) the EEV. Figure 40 Figure 38 | 35 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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No 9 (cooling) or No 10 (heating) check point value (by pressing check button) Check whether there is the Keep running same fault Figure 42 3 6 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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Check whether there are other Remove all the other heat sources around T3/T5 heat sources Check whether there is the Keep running same fault Figure 46 | 37 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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The system will Replace the control board recover when the electric supply stabilizes. Figure 49 3 8 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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Pull out the pressure Replace pressure transducer connection, transducer check if there is any display Replace ODU board Figure 54 | 39 Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
0 nor ∞ Restart the system Restart the unit to check if Finish Figure 56 the problem is resolved Replace indoor control board Figure 55 4 0 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
Do not use benzene, paint thinner, polishing powder or other solvents to clean the unit. Do not operate the system without a filter in place 4 4 | Bosch 15 SEER2 Inverter Ducted Packaged Heat Pump - BTC 761701319 A (12.2022)
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United States and Canada Bosch Thermotechnology Corp. 65 Grove St. Watertown, MA 02472 Tel: 866-642-3198 Fax: 954-776-5529 www.bosch-thermotechnology.us BTC 761701319 A | 12.2022 Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.