EE Measures Technical Information Flashcards
Return line on Domestic Hot Water Should be?
Hot. If there is a pump, it could benefit from a temperature sensor connected to an on demand pump controller.
Supply line on Domestic Hot Water Should be?
City Supplied Cold Water. Could benefit from a temperature sensor connected to an on-deman pump controller.
The return line in a DHW on-demand system will trigger the pump on when?
The water is not hot enough. Technically, this temperature is at a point lower than the set point for the pump controller. Ex// return line is at 106 degrees and set point is 110 degrees.
Recirculating pump in DHW pump controller can be kept on 24hr in what mode?
Override mode.
What is After Delay Run in DHW pump controller system?
This allows the DHW recirculation pump to run for a set time after the on-demand cycle has run in order to maintain more hot water.
What is the Sequence of Operation in HVAC controls?
This is the programming logic used to control HVAC and is based on the sense data of the changing building conditions.
What is purpose of HVAC controls?
The purpose is to sense and regulate the building environment.
What are the types of HVAC control operation?
The types are manual (switch, thermostat dial, et), automatic (aka programmable) (programmable thermostat, timer switch, programmable valve), and connected (aka Smart) (smart thermostat, connected switch, connected TRV valve).
