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Technical data
Service manual
450
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Wiring
symbol
Component
Description
Trigger
Error
Action type
R15T
Compressor body
thermistor
Overheat
protection
Temperature >135˚C for 3 times
within 100 minutes
Reset: Temperature <100˚C
F3
Forced stop
R21T,
R22T
Discharge pipe
thermistor
Overheat
protection
Temperature >120˚C for 2 times
within 10 minutes
Reset: Temperature <100˚C
F3
Forced stop
R15T
Compressor body
thermistor
Overheat
protection
Temperature >120˚C for 2 times
within 10 minutes
Reset: Temperature <100˚C
F3
Forced stop
A3P,
A6P,
A4P,
A7P
Radiation fin
temperature
Overheat
protection
Temperature >110˚C
Reset: Temperature <107˚C
Drop control
Temperature >114˚C
L4
Forced stop
Drop control is visible through service checker tool.
Retries are monitored by field setting Mode 1 (monitor mode): 1-23/24/25. See
455].
Forced stops will trigger error codes. Active errors are visible on the outdoor unit
7-Segment LED Display, remote controller displays and central controller devices.
To consult the error history, see "To check the error history" in
Содержание VRV IV+
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