Aprilaire 550 wiring diagram
Page 1: Specifications. WIRING DIAGRAM OPTIONS (SEE STEP 8 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS) The Model 600 Aprilaire
can be installed on either NOTE the supply or return plenum of a forced air FOR INSTALLATION IN MANUAL MODE, Page 1: Specifications The current Model 400 is identical to the previous Model 400A. READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING ATTENTION INSTALLER: Aprilaire Humidifier Parts Drawing 2007 This product must be installed by a qualified
heating and air conditioning contractor. Archived Documents . If you're servicing an older unit or need access to older versions of our install guides, owners manuals, specification sheets or submittal sheets you will find them below. Problem: Furnace will not ignite the gas to produce heat for your home. The furnace hot surface ignitor does not glow. When a furnace has a bad ignitor. This is what I see in the furnace sequence of operation: Hi! It sounds like the contactor is not getting enough voltage to the coil. I would suggest that you check the coil voltage and make sure it is getting a minimum of 24 volts if it is a 24-volt coil and 220 volts if you have a 220-volt coil.