Refrigeration & Air Conditioning Mechanic Red Seal · Question
When installing an outdoor heat pump unit, what is the primary reason for ensuring it is elevated at least 15 cm (6 inches) above the expected maximum snow line?
Elevating the outdoor unit prevents snow accumulation from blocking airflow or causing ice buildup that can short-circuit the coil or damage the fan blades. Thi
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Question: When installing an outdoor heat pump unit, what is the primary reason for ensuring it is elevated at least 15 cm (6 inches) above the expected maximum snow line?
Answer options: ✅ To prevent ice bridging between the coil and the base during defrost cycles.
- To reduce noise transmission into the building's foundation.
- To allow for easier access during routine maintenance and cleaning.
- To comply with local aesthetic building codes for outdoor equipment.
Correct answer: To prevent ice bridging between the coil and the base during defrost cycles.
Explanation: Elevating the outdoor unit prevents snow accumulation from blocking airflow or causing ice buildup that can short-circuit the coil or damage the fan blades. This is crucial for proper defrosting and efficient operation.
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- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
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