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Summary of Contents for Bosch BIWA Series
- Page 1 Installation and Operating Instructions Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units 1.5-3 Ton Capacity | R454B...
- Page 2 Installation and Operating Instructions Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024)
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Page 3: Table Of Contents
7.6 Electric Heat Kit MCA/MOP Data 8 Airflow Performance 9 Ductwork 10 Leak Dissipation System 10.1 Leak Dissipation System Status 11 Refrigerant Connections 11.1 Condensate Drain Connection Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 4: Key To Symbols And Safety Instructions
Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) - Page 5 Most consumers are aware that products present safety and health risks, when improperly used, handled and maintained. Blower Motor Mounting Bolt Figure 1 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024)
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Page 6: Refrigerant Charge
Personal injury! The unit must be permanently grounded. Failure to do so may result in electrical shock causing personal injury or death. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) - Page 7 • Equipment marking must remain visible and legible. Markings and signs that are illegible shall be corrected. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024)
- Page 8 Cylinders shall be complete with pressure-relief valve and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024)
- Page 9 Do not use the air conditioner until a service person confirms that the refrigerant leak is repaired. Keep ventilation openings clear of obstruction. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024)
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Page 10: General
The installed unit must have the required clearances as shown in Figure 10. Failure to follow these instructions may result in equipment damage and/or premature equipment failure. 10 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 11: Dimensional Data
3/8 / 3/4 (9.5) / (19) 39-1/2 (1004) 22 (559) 19 (483) 18-4/5 (478) 9-1/2 (242) 3/8 / 3/4 (9.5) / (19) Table 2 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 11... -
Page 12: Unit Back Dimensions
5-15/16" [150] 2-7/16"[61] 28-1/4" [717] 5-15/16" [150] 2-7/16"[61] 28-1/4" [717] 5-15/16" [150] 2-7/16"[61] 31-5/16" [795] 5-15/16" [150] 2-7/16"[61] 31-5/16" [795] Table 3 12 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 13: Components
Installation and Operating Instructions 4 Components Figure 4 COMPONENT IDENTIFICATION: Main Control Board Motor Blower Housing All Aluminum Coil A2L Refrigerant Sensor Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 13... -
Page 14: A2L Refrigerant Sensor
The allowed maximum refrigerant charge (Mmax) and the required minimum room area (Amin) can be determined according to Table 5 and Table 6-8. 14 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 15: Unit Location Considerations
• TA: The total area of the conditioned space connected by air ducts. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 15... - Page 16 ≥25/32'' ≥ 50% of Anvmin the leaking refrigerant before entering any room. ≤11-13/16'' ≤7-7/8'' ≤3-15/16'' Figure 6 16 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024)
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Page 17: The Allowed Maximum Refrigerant Charge And Required Minimum Room Area
17.6 38.0 14-2 18.5 6-13 39.0 14-5 39.9 14-12 19.5 20.4 40.8 15-0 21.3 7-11 41.8 15-7 22.2 42.7 15-14 Table 5 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 17... - Page 18 49.4 50.8 51.8 53.2 54.2 55.7 58.7 52.1 53.6 54.7 56.2 57.2 58.7 61.8 54.9 56.5 57.5 59.1 60.2 61.8 Table 8 18 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024)
- Page 19 Table 5 or Table 6-8. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 19...
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Page 20: Applications
NOTE: MOUNTING WALL AND SUPPORTING STRUCTURE MUST BE ABLE TO SUPPORT A MINIMUM OF 150 LBS. Wall mounting side view Figure 7 20 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 21: Frame Mount
The installed unit must have the required clearances as shown in Figure 10. Failure to follow these instructions may result in equipment damage and/or premature equipment failure. Frame mount Figure 9 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 21... -
Page 22: Return Air Panel Configuration
Refer to Figure 2 for High Voltage knock out locations. • High voltage wiring must be connected to the red and black wiring in the control section of the air handler. 22 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 23: Control Wiring
Model Voltage Hertz Speeds Motor Circuit Protector 208/230 15(A) 208/230 15(A) 208/230 15(A) 208/230 15(A) Table 10 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 23... -
Page 24: Electric Heat Kit Mca/Mop Data
10 kW Heat Kit, Double Pole Breaker Table 12 [ m eans available, X means not available ] 24 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 25: Airflow Performance
Airflow is equivalent for front or bottom return configurations. SCFM is nearly the same with cooling performance airflow, the gap is in the 1 to 2%. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 25... -
Page 26: Ductwork
Secure the supply and return ductwork to the unit flanges, using proper fasteners for the type of duct used and tape the duct-to-unit joint as required to prevent air leaks. 26 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 27: Leak Dissipation System
A2L Sensor Hardware Error 4 Flash / Cycle A2L Sensor Communication Error 8 Flash / Cycle A2L Sensor Over Service Life Table 14 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 27... -
Page 28: Refrigerant Connections
2" / 51 mm Drain on MIN drain either side of unit Primary 2" / 51 mm Drain Figure 17 28 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 29: Air Filter (Not Factory-Installed)
Filter rails Figure 18 Filters are not included with the unit and must be field supplied. Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 29... -
Page 30: Maintenance
Components and units must be properly disposed in accordance with federal or Do not operate the system without a filter in place. local regulations. 30 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) -
Page 31: Wiring Diagrams
Note: Any time the electric heat elements are active, the indoor fan will run in high stage. Support 3H and 1C thermostat non-communicating setup Thermostat wiring diagram for BOVA 15 with BIWA Figure 19 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 31... -
Page 32: Schematic Diagram
8: The rated operating condition of ALARM is 24 VAC/1A or 30 VDC/1A or 250 VAC/1A. Please refer to the manual for wiring methods. Indoor unit wiring diagram Figure 20 32 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) - Page 33 LIMIT SWITCH FIELD POWER WIRING FUSE LINK FUSE LINK FACTORY POWER WIRING Electric heat kit 7.5kW & 10kW wiring diagram Figure 22 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 33...
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Page 34: Led Flashing Troubleshooting
No service needed. A2L sensor exceed 140 F? Figure 26 Replace the A2L refrigerant sensor and power the unit back up again. Figure 24 34 | Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) - Page 35 Alternatively, please visit our Service & Support webpage to find FAQs, videos, service bulletins, and more; www.boschheatingcooling.com/service or use your cellphone to scan the code below. Figure 27 Bosch IDS Heat Pump BIWA Series Wall Mounted Air Handler Units - BTC 762003313 A (11.2024) | 35...
- Page 36 United States and Canada Bosch Thermotechnology Corp. 65 Grove St. Watertown, MA 02472 Tel: 800-283-3787 www.bosch-homecomfort.us BTC 762003313 A / 11.2024 Bosch Thermotechnology Corp. reserves the right to make changes without notice due to continuing engineering and technological advances.
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