new HVAC & door bell quit
with the new furnaces now a days they use sensitive control boards.adding the doorbell directly to this is not recommended. your doorbell should have its own transformer and probally did, but was installed on the old furnace. You need( 24/120volt transformer) to operate door bell .this will require some one who knows how to install a t-former. tell the hvac co that the doorbell transformer was mistakenly taken with the old furnace and if they would kindly come back and install the transformer
terminal R and C on board. BEAWARE if you damage something or accidentally damage something (they have the right to charge you for service and parts)
Last edited by coolmen; 04-15-2006 at 01:10 PM.