Wiring Diagrams ESIE09-08B
232 Appendix
*: included in option kit
#: field supplied
*: included in option kit
X1Y- X4Y Connector
Y1R 4 way valve
Z1F - Z5F (A*P) Noise filter
Part number Description
A1P Main PCB
A2P User interface PCB
A3P Control PCB
A4P Inverter PCB
A5P QA PCB
A6P Filter PCB
A7P * Digital I/O PCB
A8P * Demand PCB
A9P Service PCB
A10P * Thermostat PCB
A11P * Receiver PCB
R1H (EKRTR) * Humidity sensor
R1T (EKRTW/R) * Ambient sensor
R2T (EKHTS*) * Domestic hot water tank thermistor
R2T (EKRTETS) * External sensor (floor or ambient)
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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