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15.10. Energy recovery ventilation (ERV)
ERV
ERV Switch
• Non-Voltage a-contact input
• Contact rating voltage >= 15 VDC
ERV output
CNER input
Cool/Heat/Fan operation
OFF
Cool/Heat/Fan operation
ON
1
The G/Y1 signal to the furnace is energized to turn on the furnace blower. If kumo cloud
second stage blower speed, the Y/Y2 signal is also energized.
2
It is recommended to set Modes 25 and 27 to 2, in order to have the indoor fan stop running when set temperature is met. Otherwise,
CN2C will energize the ERV 24/7.
Specifications are subject to change without notice.
PAA-A18, 24, 30, 36, 42AA1/BA1/CA1
12vdc
coil
Part Number: PAC-740
ERV switch (field)
max 30 ft.
• Contact rating current >= 0.1 A
• Minimum applicable load <= 1mA at DC
Condition
Furnace blower
(expected operation)
Defrost
STOP
Defrost
STOP
Part Number: CN24RELAY-KIT-CM3
(expected furnace blower
1 2
ON
STOP
STOP
1
ON
STOP
1
ON
®
app is used and configured to operate a
91
Control Board in Control Box
Control Box
CN2C output
output)
ON
OFF
OFF
ON
OFF
ON
© 2022 Mitsubishi Electric US, Inc.
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