DX Coil Control

[tonyk]

Hell there, I have been asked to connect a Toshiba RAV-SM564ATP-E condenser unit to a DX coil mounted in a AHU. Am I right to assume that as the expansion device is in the condenser unit I need no further control at the coil?
Pipe sizes are 1/4" and 1/2"
The condenser is the same type you would fit on a split a/c system.
Many thanks in advance for any advice on this

[Martin Davies]

Hi Tony, I have worked on similar equipment and I was instructed to install TXV at the coil as this is where the change in state is happening and so where the flow needs to be monitored and controlled.

[al]

No TXV needed, Toshiba should have provided an AHU interface kit with temperature sensors, these are fitted on the evap coil and connect to the interface.

[tonyk]

Thanks guys Al your right managed to get some more paperwork on this project and your right, sensors and interface kit provided..