Steffes HPB22 Troubleshooting Guide Manuale Utente

V3 TROUBLESHOOTING GUIDE FOR HEAT PUMP BOOSTERS MODELS: HPB11, HPB15, & HPB22

Page 8 EXPLODED VIEW DIAGRAM

Page 9 HPB PARTS LIST NOTE: When ordering replacement parts, please include unit model number and serial number. DWG. REF. NO. DESCRIPTION HPB

Page 10 DWG. REF. NO. DESCRIPTION HPB11 ITEM NO. HPB15 ITEM NO. HPB22 ITEM NO. 39. Core Blower Wheel 1020002R 1020002R 1020002R 40. Slam Gate In

PREFACE This guide contains instructions for troubleshooting the Steffes Corporation room heating units: Models HPB 11, HPB 15, and HPB 22. In compi

Page 1 Heat Pump BoosterFunction: Core ChargingProblem: Unit will not charge (Unit has no core charge) or Control Board lights are off.Before startin

Page 2 Heat Pump BoosterFunction: Core ChargingProblem: Unit underchargesBefore starting any of the procedures below, check voltage on load side of a

Page 3 Heat Pump BoosterFunction: Core ChargingProblem: Unit overcharges on warm daysBefore starting any of the procedure below, check voltage on load

Page 4 Heat Pump BoosterFunction: Air DeliveryProblem: Cool discharge airBefore starting any of the procedure below, check voltage on load side of

Page 5 Heat Pump BoosterFunction: Air DeliveryProblem: Blower does not runBefore starting any of the procedure below, check voltage on load side of a

DISCHARGE AIR Check-Out Procedure Models: HPB11B, HPB15B and HPB22B Page 6 CHECK OUT PROCEDURE: The failure of the melt link is often the result of

Discharge Air Check Out Procedure Continued… Page 7 15. Energize the control circuit and check the #4 yellow LED light on the interface board. It