Inverter Outdoor Unit (R-407C) (Rzp71 ~ 140D) - Daikin SkyAir Super Inverter 70 D Series Service Manual

Function Details
4.2

Inverter Outdoor Unit (R-407C) (RZP71 ~ 140D)

4.2.1 Restart standby
To prevent compressor from frequent ON/OFF and equalize pressure in refrigerant line,
conducts forced thermostat OFF for 3 minutes after compressor stopping. Moreover, outdoor
unit fan conducts residual operation for a period of time to expedite equalization and prevent
refrigerant from entering in evaporator.
4.2.2 Retry Control
In the following control, conducts retry when thermostat is OFF and confirms malfunction
depending on the frequency of retries.
4.2.3 Forced Thermostat OFF
Thermostat OFF
Conducts thermostat OFF under the following temperature and period of time to prevent the
due to Freeze-up indoor unit heat exchanger from freezing up.
Protection (Only
&
in cooling
operation)
Thermostat OFF If outside temperature is high, turns off thermostat at the following temperature to protect the
system.
due to Outside
Temperature
(Only in heating
operation)
82
Compressor
Motorized valve
Solenoid valve (SVG)
For model RZP71D
For model
RZP100~140D
Solenoid valve (SVC)
Outdoor unit fan
HPS activation
High inverter cooling fin temperature
Instantaneous overcurrent
Electronic thermal
Stall protection
High discharge pipe temperature
Malfunction of outdoor unit fan motor
High pressure increasing
Low pressure decreasing
Wet detection
{
Indoor unit heat exchange temperature<–5˚C for 1 continuous minute
Indoor unit heat exchange temperature<–1˚C for 25 integral minutes
Outside temperature>27˚C
Restart standby
Thermostat OFF complete
ON
OFF
ON
OFF
ON
Moves to "Stop" or "Starting
control" after completion of
ON
"Restart standby".
OFF
ON
OFF
ON
OFF
Residual
operation
For 3 minutes
(S2568)
SiE25-110
(S2544)
Function and Operation