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Hydro-Air and A/C
Jason_13
Member Posts: 305
Have a job to convert from oil to gas. This is a job with new oil furnace, Oil hot water heater heating basement baseboard system and electric hot water heater.
New system, gas h/w boiler, IWH and hydro-coil for duct system.
Question, have you ever done hydro-coil and A/C coil both on the supply side of the fan? I realize normally the a/c is on the inlet of the fan and the hydro-coil on discharge side of the fan. No room to move the A/C coil to return.
The blower is an ECM motor.
New system, gas h/w boiler, IWH and hydro-coil for duct system.
Question, have you ever done hydro-coil and A/C coil both on the supply side of the fan? I realize normally the a/c is on the inlet of the fan and the hydro-coil on discharge side of the fan. No room to move the A/C coil to return.
The blower is an ECM motor.
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Comments
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Please explain your question a little better0
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I'd think you'd want a external slab cased evap for this, then the HW coil down the line. Sounds like you're keeping existing air handler. Was it solely electric coils and a blower?0
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A single coil which does heating and cooling is not something exotic .You didn't get what you didn't pay for and it will never be what you thought it would .
Langans Plumbing & Heating LLC
732-751-1560
Serving most of New Jersey, Eastern Pa .
Consultation, Design & Installation anywhere
Rich McGrath 732-581-38330 -
I think what he means is this confugeration
Hot water coil top
DX coil middle
blower/ IDF on bottom
I believe he is worried about freezing the coil. Not really a big deal just install a freeze Stat on the system and set it around 35-40 degrees.0 -
Sorry for not being too clear.
My concern is as follows. I am used to having the A/C coil on the return side of the blower and the H/W coil on the supply. This job will be set up as follows.
Return from ceiling to a return air box. Blower cabinet on the supply side of air box. Exiting the supply side of the blower see's the H/W coil first and than the A/C coil. My concern is too much resistance on the supply and very little on the return.0 -
What manufacturer are you looking at?
What's is that static pressure of the current system?
What is the static pressure drop of the hot water coil?0 -
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