Discharge Pipe Temperature Control - Daikin F-Series Service Manual

Control Specification
3.3.4 3-Minute Standby
Prohibit to turn ON the compressor for 3 minutes after turning it off.
(Except when defrosting. (Only for Heat Pump Model).)
3.3.5 Compressor Protection Function
When turning the compressor from OFF to ON, the upper limit of frequency must be set as
follows. (The function must not be used when defrosting (only for heat pump model).)
3.4

Discharge Pipe Temperature Control

Outline The discharge pipe temperature is used as the compressor's internal temperature. If the
discharge pipe temperature rises above a certain level, the operating frequency upper limit is
set to keep this temperature from going up further.
Detail Divide the Zone
Management within the Zones
48
50/60class,
71-90FVMA
71FVM(T)
FCG 3 85 80
FCG 2 70 65
FCG 1 55 55
Stop zone
A˚C
Drooping
B˚C
zone
Keep zone
Discharge pipe
Reset zone
temperature
Zone
Stop zone
Drooping zone
Keep zone
Reset zone
C˚C
D˚C
E˚C
(R5205)
When the temperature reaches the stop zone, stop the compressor and
correct abnormality.
Start the timer, and the frequency will be drooping.
Keep the upper limit of frequency.
Cancel the upper limit of frequency.
50/60 class 71/80/90 class
A 110
B 103
C 101.5
D 100
E 95
Control contents
Function and Control
Si04-703A
120
111
109
107
107