23 |
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