ESIE09-08A Wiring Diagrams
Appendix 249
*: included in option kit
#: field supplied
*: included in option kit
Part number Description
A1P Main PCB
A2P User interface PCB
A3P Control PCB
A4P Inverter control PCB
A5P Inverter PCB
A6P Filter PCB
A7P * Digital I/O PCB (optional)
A8P * Demand PCB (optional)
A10P * Thermostat PCB (optional)
A11P * Receiver PCB (optional)
R1H (EKRTR) * Humidity sensor (optional)
R1T (EKRTW/R) * Ambient sensor (optional)
R2T (EKHTS*) * Domestic hot water tank thermistor (optional)
R2T (EKRTETS) * External sensor (floor or ambient) (optional)
R3T Liquid thermistor R-410A
R4T Returning water thermistor
R5T Leaving water thermistor
R6T Discharge thermistor
R7T Liquid thermistor R-134a
R8T Fin thermistor
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