Posts Tagged ‘BC controller’

Mitsubishi City Multi goes into Ontario Airport

Wednesday, September 22nd, 2010

Embassy Suites, California

The new Embassy Suites hotel located at the Ontario airport in California will have guestrooms served by a VRV system by Mitsubishi.  This is following the Embassy Suites in Palmdale with the identical system completed in early 2010. 

Here are a series of photos taken during construction to showing how this system is constructed in the corridors and guestrooms.

 

This photo shows a typical guestroom fan coil unit located above the guestroom entry soffit.  The units are very compact. 

 

This shows a closer view of the fan coil unit.  The ductwork to the guestroom space is flex duct.  The two black pipes in the foreground are insulated refrigerant pipes.   The white PVC pipe is the condensate drain.  The strange grey tube with corrugations between the PVC and the fan coil is the proprietary Mitsubishi condensate trap.  It solves the problem of the P-trap which otherwise requires additional ceiling cavity height to accommodate.  Note that the electrical J-box is in the upper left corner of the photo.  All connections are on one side of the fan coil.

 

This photo shows the BC controller located in the corridor ceiling cavity.  Note the refrigerant piping connected to the left side with the brass fittings.  There are two pipes per guestroom and each pair of pipes is stacked vertically.  There are thirteen rooms connected to this BC controller.  For a typical hotel floor with about 26 guestrooms per floor, two BC controllers are provided.

 

This is another view of the BC controller with the condensate piping and main refrigerant connections shown on the end of the unit.

 

This shows the BC controller nestled amongst the other systems in the corriodor including the ventilation supply duct nearest the wall.

 

This photo shows the refrigerant piping as it splays out to the guestrooms along the corridor.  As we move further from the BC controller, the congestion becomes less and less as refrigerant pipes “drop off” to the guestrooms. 

 

This shows a small bundle of refrigerant pipes near the most remote guestrooms.  Note that the ceiling space becomes very comfortable at this point. (If we could only rent out this unused space. J)

 

This photo shows an electrical J-Box with the access panel framed in.  I have included it just so my electrical engineers do not feel left out.