Freeze Prevention - Daikin VRV II RXYQ5MATL Service Manual

R-410a heat pump 60hz
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Si39-504
6.6

Freeze Prevention

Freeze
When the temperature detected by liquid pipe temperature thermistor (R2T) of the indoor unit
heat exchanger drops too low, the unit enters freeze prevention operation in accordance with
Prevention by Off
the following conditions, and is also set in accordance with the conditions given below.
Cycle (Indoor
Unit)
Conditions for starting freeze prevention: Temperature is -1°C or less for total of 40 min., or
temperature is -5°C or less for total of 10 min.
Conditions for stopping freeze prevention: Temperature is +7°C or more for 10 min.
continuously
Ex: Case where temperature is -5°C or less for total of 10 min.
Function
Outline of Control (Indoor Unit)
101

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