I have two new systems, ~barely months old. Need some tech help.
Downstairs: Aprilaire 8620W tstat, and a Bosch system of BOBV-36HDN1-M18M compressor, B6H96M080B3A propane furnace, and BMAC4248BNTF cased coil.
Upstairs: Aprilaire 8620W tstat, and a Bosch system of BOBV-36HDN1-M18M compressor, and BVA-24WN1-M18 airhandler.
Challenge is this: upstairs is two-speed fan and downstairs is three speed fan. Trying to work with the contractor to get upstairs where fan/circ uses first/low-speed and heat-cool uses second hi-speed. Similarly, downstairs trying to get fan/circ mode to use first/lowest speed fan, and cool third/highest speed. Gas furnace is two-stage so second speed for first stage and highest speed for second stage.
Makes sense? Surely it can be done, or why would Bosch go to the expense and trouble of making multispeed fans? Maybe 8620 wasn't the correct choice for thermostat.
Downstairs: Aprilaire 8620W tstat, and a Bosch system of BOBV-36HDN1-M18M compressor, B6H96M080B3A propane furnace, and BMAC4248BNTF cased coil.
Upstairs: Aprilaire 8620W tstat, and a Bosch system of BOBV-36HDN1-M18M compressor, and BVA-24WN1-M18 airhandler.
Challenge is this: upstairs is two-speed fan and downstairs is three speed fan. Trying to work with the contractor to get upstairs where fan/circ uses first/low-speed and heat-cool uses second hi-speed. Similarly, downstairs trying to get fan/circ mode to use first/lowest speed fan, and cool third/highest speed. Gas furnace is two-stage so second speed for first stage and highest speed for second stage.
Makes sense? Surely it can be done, or why would Bosch go to the expense and trouble of making multispeed fans? Maybe 8620 wasn't the correct choice for thermostat.
source https://hvac-talk.com/vbb/threads/2235380-Bosch-IDS-multispeed-airhandlers?goto=newpost
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