Refrigeration & Air Conditioning Mechanic Red Seal · Question
A technician is commissioned to install supplemental electric resistance heating elements in an existing forced-air duct system alongside a primary furnace. According to CSA C22.1, Canadian Electrical Code (CE Code), what is a critical consideration for the sizing and installation of the electric elements?
The Canadian Electrical Code requires that electric resistance heating elements and their circuits be adequately protected by overcurrent devices and have acces
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Question: A technician is commissioned to install supplemental electric resistance heating elements in an existing forced-air duct system alongside a primary furnace. According to CSA C22.1, Canadian Electrical Code (CE Code), what is a critical consideration for the sizing and installation of the electric elements?
Answer options:
- The total connected load of the electric heaters must not exceed the original furnace's blower motor circuit capacity. ✅ Each bank of heating elements must be individually protected by overcurrent devices and have a disconnect switch within sight.
- The electric elements must be rated for continuous duty, operating at a maximum of 80% of their nameplate capacity.
- The electric elements should be positioned downstream of any humidifiers to prevent condensate from dripping onto them.
Correct answer: Each bank of heating elements must be individually protected by overcurrent devices and have a disconnect switch within sight.
Explanation: The Canadian Electrical Code requires that electric resistance heating elements and their circuits be adequately protected by overcurrent devices and have accessible means of disconnect for safety and servicing.
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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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