EcoSmart ES50LVP Installation, Operation And Maintenance Manual - Sequence
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P a g e
SEQUENCE
OF
OPERATION
Full Modulation
Heating Mode –(ecosmart outdoor sensor installed)
Thermostat calls for heat
• R is connected to W
• Heat generator is turned on
• Auxiliary 24VAC power is turned on
• Pump turns on 100%
• After a 15 second delay to allow for system water to heat up coil, fan ramps up to HEAT
CFM speed
• ecosmart control automatically adjusts fan and pump speeds to meet the outdoor
temperature conditions
Thermostat is satisfied
• R is disconnected from W
• Heat generator is turned off
• Auxiliary 24VAC power is turned off
• Pump turns off and fan speed ramps down to zero, extracting any remaining heat in the
coil
Step Modulation
Heating Mode –(ecosmart outdoor sensor not installed)
Thermostat calls for heat
• R is connected to W
• Heat generator is turned on
• Auxiliary 24VAC power is turned on
• Pump turns on 100%
• After a 15 second delay to allow for system water to heat up coil, fan ramps up to HEAT
CFM speed
• ecosmart goes through three steps:
• 50% of HEAT CFM setting for 5 minutes – pump LO
• 75% of HEAT CFM for 5 minutes – pump MID
• 100% of HEAT CFM until thermostat is satisfied – pump HI