Crown CSHB60-90XE - Manuals

All installations and services must be performed by qualified service personnel. 9 • Check and plug leaks in return ducts, cabinet Comfort Check • Check proper airflow settings • Low static pressure for lowest noise • Set low continuous-fan CFM • T’stat in bad location? Figure 3: ECM PIN CONNECTORS ...

All installations and services must be performed by qualified service personnel. 11 BLOWER Off- Delay Active? Sequence of Operation BURNER On 1. A/C Off 2. COOL mode Off 3.BLOWER Off-Delay Started 4. Status LED Off BLOWER = LOW BLOWER = COOL COOL Mode On? Y Active? On-Delay Ended? Yes Yes Yes Yes No...

All installations and services must be performed by qualified service personnel. 12 Sequence of Operation Glossary Inputs: LIMIT - 120vac power from the High Limit Switch used to power the burner. W- Switched 24vac indicating a Heat call from the thermostat. Y - Switched 24vac indicating a Cool call...