I am working on the load calculations for the project in Brooklyn NY 3500SF townhouse. In the notes I see that Geothermal HVAC will be used but no specs provided. Can someone direct me where I can find electrical requirements for different sizes systems or maybe someone worked on one and can tell me details. I am new to this.
Appreciate any help.
You didn’t say what the total square footage of the project is, this would be critical in sizing the well pumps and the BTU’s/hour.
Accounting for the total draw from the well(s) and what BTU’s is obtainable is really important here.
This is certainly an RFI issue, it certainly could
have truly be a missed item, if it’s not on your drawing, then hopefully the call outs are on the mechanical drawings.
Sometimes the mechanical supplies all of it, or as your trying to question well what size is all the services.
Here’s a run down of the last service, I've installed. the total job was ~ 1/2M Sq FT
Rental Spaces (commercial)
3 Pumps - 30 Amp motor control disconnect with thermal overloads
1 Pump – 40 Amp motor control disconnect with thermal overloads
(Both need line and load - runs)
1 – #8 circuit with a disconnect for each HVAC unit in each Space
1- 30 Amp for Aux. Heater per unit.
Residential
1 – 60 Amp for main HVAC Unit with 1- 30 Amp for Aux. Heater, both with disconnects
There were also roof top A/C units 1- 40 amp service
There was no engineering done as to the proposed layout requirements, there was no drawing for placement of the
services and while the piping could be plastic pipe they went with steel most piping for the mechanical will blow out any small space. Lucky, I had the pumps close to the main services
The upsale is to put in some VFD's to control everything, the motors where left running wide open, not so "green"! :roll:
Good Luck
