Mitsubishi Electric PAA-A18AA1 Manual De Instalación página 94

PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
15.10. Energy recovery ventilation (ERV)
Part Number: CN24RELAY-KIT-CM3
Control Board in Control Box
12vdc
coil
ERV
Part Number: PAC-740
ERV switch (field)
max 30 ft.
Control Box
ERV Control
Sequence of operation:
1. The ERV demand switch closes CNER.
2. 12VDC is provided to CN2C to turn on ERV.
3. If the unit goes into defrost, CN2C stops 12VDC output.
ERV Switch
• Non-Voltage a-contact input
• Contact rating voltage >= 15VDC
• Contact rating current >= 0.1 A
• Minimum applicable load <= 1mA at DC
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