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Kevin WhiteSep 6, 2025
How to fix structure-bourne noise in Bosch Heat Pump?
- JJoseph LopezSep 7, 2025
Mount unit on vibration pad.
How to fix structure-bourne noise in Bosch Heat Pump?
Mount unit on vibration pad.
What to do if the compressor of my Bosch Heat Pump doesn't operate, but the fan runs because of brown out fault?
If the compressor isn't running but the fan is, and you suspect a brown out fault due to low voltage supply, check the primary voltage to ensure it's within the limits listed on the unit data plate.
How to adjust fan speed setting too high in Bosch Heat Pump?
Consult blower performance table and reduce fan speed if possible.
Why is the compressor not running, but the fan is on my Bosch CL, and the return air is blocked?
If the compressor isn't running but the fan is, and you suspect a condensate fault due to blocked return air, check the air filter and return air duct work for blockage. Ensure adequate space between the return air opening and any obstructions.
Why is the compressor not working, but the fan is running on my Bosch Heat Pump, and the water temperature is high?
If the compressor isn't running but the fan is, and you suspect a high-pressure fault due to high water temperature, check the water temperature to ensure it's within the acceptable range.
How to check refrigerant level in Bosch CL Heat Pump when compressor doesn't operate but fan runs because of freezer fault, air coil?
Check refrigerant pressure with a gauge set.
How to reduce air noise from my Bosch Heat Pump?
Ensure the ductwork and grills are properly sized for the unit air flow.
What to do if there is freezer fault, air coil because of blocked return air in my Bosch Heat Pump?
Check that there is adequate space between the return air opening and walls or other obstructions on free return applications.
How to clean scaled or fouled water coil elevating heat pressure in Bosch Heat Pump?
Clean/descale water coil.
How to fix high water temperature or low water flow rate elevating head pressure in Bosch Heat Pump?
Increase water flow rate and/or reduce water temperature if possible.
Covers critical safety instructions for installation, servicing, and handling of refrigerants.
Explains signal words, icons, and notices used for risk communication.
Details the structure and meaning of each character in the model number.
Overview of CL Series heat pumps, their applications, and certifications.
Specifies environmental, power, and operating limits for the units.
Lists compatible supplementary electric heater kits for various models.
Guidelines for moving, storing, initial inspection, and unpacking units.
Criteria for selecting a suitable indoor installation location.
Instructions for mounting vertical and horizontal units, including air orientation.
Details on connecting condensate drains, water piping, and duct systems.
Guidance on high-voltage, low-voltage wiring, and ECM interface board.
Configuring units for well water, cooling tower, and geothermal systems.
Ensuring proper water quality for heat pump operation and longevity.
Acceptable water characteristic values for copper and cupro-nickel heat exchangers.
Performing essential checks before energizing the unit and verifying compressor rotation.
Step-by-step guide for initiating unit operation in cooling and heating modes.
Recording system vitals and completing the checkout sheet.
Overview of the Unit Protection Module and its safety monitoring capabilities.
Explanation of fault codes, DIP switch settings, and operational logic.
Details on internal water valves, economizers, and hot gas reheat functionalities.
Information on boilerless heat control and the function of the option card.
Description and performance data for PSC, CT, and CA fan motor options.
Guidelines for filter changes, annual checkups, and drain cleaning.
Procedures for safe servicing, repairs, and handling of refrigerants.
Information on accessing electrical boxes and blower assemblies for service.
Guidelines for protecting the environment during decommissioning.
Steps for safe decommissioning and proper equipment labeling.
Guides for diagnosing and resolving common unit and option card issues.
Comprehensive tables for operating conditions, pressure drops, and dimensions.
Technical specifications for compressor winding resistance and capacitors.
Wiring diagrams for single-phase units with PSC, CT, and CA motors.
Wiring diagrams for three-phase units with PSC, CT, and CA motors.
Detailed dimensions and cabinet option sizes for vertical units.
Detailed dimensions and cabinet option sizes for horizontal units.
Required clearances for blower, compressor, and electrical access.
Glossary of common acronyms and technical terms used in the manual.
Template for recording unit nameplate and operating data during checkout.
General notes and disclaimers regarding product specifications and changes.
General