AHU Heater_Type of Load 1

[alanElec]

Hi All,
I'm working in an HVAC contracting company.I'm preparing a load schedule to be submitted to our Consultant for one of our projects.I have to mention specifically the type of load(Continuos,standby,intermittent).As per my understanding AHU & ACCU are continuous loads.is it correct?.What type of load is AHU Heater? Intermittent?

 

[racookpe1978]

Clarify your term AHU heater.

 

[ScottyUK]

Air handling unit. Typically a big electric heating element in a sheet steel box.

If it is an intake pre-heat battery I would treat it as continuous, but I don't know what your code is to comment objectively.

 

[7anoter4]

See [for information]:

http://www.halfacreconstruction.com/pdf/drawings/northwest/plans_8_of_8.pdf

 

[alanElec]

This is a heater built inside the AHU.The HVAC engineer says it is used for humidification/dehumidification...Also will a heater have specified power factor and electrical efficiency?checked the catalogues and couldnt find any..

 

[ScottyUK]

Heaters usually have a unity power factor because they're resistors. Efficiency? Generally considered to be 100% efficient at converting electricity to heat, occasionally known to produce light. I've never really thought about heaters having an 'efficiency' as such.

 

[alanElec]

Good..Even my idea is the same..But the consultant have given me a wierd format to enter all such parameters for hvac equipments we are installing...Guess I'll have to modify the format then..Thanks a lot..