readydave8
re member
- Location
- Clarkesville, Georgia
- Occupation
- electrician
"Design of air handling and ventilation systems must incorporate engineering controls to prevent intrusion of hazardous airborne contaminant (i.e. shut-off system, detection devices, and control air circulation and purging of contaminant from the building envelope)."
Dept of education note, it's not a public school but some kind of evening program
Customer wants me to install E-stops based on this
There is a building with conventional split system heat pump, a trailer with a minisplit, and a trailer with a Ptac.
I thought about running power to T/stats through stop switch but I think Blower would keep running for a minute or 2 until it cools off, how bout interrupting control voltage at unit?
And the minisplit has integral controls, so run line voltage through a contactor?
Dept of education note, it's not a public school but some kind of evening program
Customer wants me to install E-stops based on this
There is a building with conventional split system heat pump, a trailer with a minisplit, and a trailer with a Ptac.
I thought about running power to T/stats through stop switch but I think Blower would keep running for a minute or 2 until it cools off, how bout interrupting control voltage at unit?
And the minisplit has integral controls, so run line voltage through a contactor?