York SCOH070K Technical Information

Also see for SCOH-070K: Installation instructions

York SCOH070K Technical Information Manual pdf 35 page image

35��Duct electric heaters for SICH-070 to 300BThese duct electric heaters are designed to provide backupheat in heat pump units, and complementary heat in cool onlyunits. On and off cycles are governed by the air conditioningequipment control system. These should be fitted directly tothe impulse outlet of the indoor section of the unit.Technical specificationsThese duct electric heaters include the following compo-nents:- Galvanised sheet casing, covers and supports.- Exposed nickel-chrome wire electric resistance mountedon steatite supports.- Power supply contactor with a 400 V coil.- Two thermal switches located at the top of the heater. Thefirst, with automatic reset, disconnects the heater when atemperature of 77°C is reached. The second, accessibleexternally and with manual reset, disconnects the heaterwhen a temperature of 138°C is reached. With 2-stage heat-ers, there are four thermal protectors, 2 for each stage.- Interlock with the indoor fan thermal relay. The controlsystem of the unit does not allow operation of the heaterwhen the indoor fan thermal relay fails.- Plug-in connector for interconnection between the controlpanel of the air conditioning unit and the heater.- PVC gasket for heater-air conditioner joint and self-thread-ing screws for fastening the accessory.General dimensions mm