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ECH16-5kW-P VOLTAGE
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ECH16 5kW P VOLTAGE SEQUENCE OF OPERATION
NOTE - Call for heat is first stage heat for CHA16 units and second stage heat for CHP16/20 units.
1- On a call for heat, thermal heat relay K32 and resistor
R6 are energized. Within 1-110 seconds, contacts
K32-1 close followed by K32-2.
2- When K32-1 closes, nothing happens since indoor
blower is already energized form first stage heat call.
3- When K32-2 closes, heating element HE1 is enerĆ
gized.
4- When heating demand is satisfied, heat relay K32 is
de-energized. Heating element HE1 de-energizes imĆ
mediately.
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