8-19
CONTROL SYSTEM
Revision Y05-01
Service Manual - DNC Series
(RT - SPT) [
o
c]
+3
+2
+1
0
-1
-2
-3
ON
OFF
ON
OFF
H/M/L/OFF
L/OFF
ON
OFF
ON
OFF
COMP
& OFAN
HE1
HE2
IFAN
RV
H/M/L/OFF
L/OFF
USER FAN SPEED
H/M/L/OFF
L/OFF
Auto Cool Mode
Auto Heat Mode
> 4 min
> 3 min
> 3 min
> 2 min
(3)
(3)
(4)
(4)
(5)
Auto Heat Mode
Notes:
1) Refer to Sect 4.1 and 4.2 for the heating operations (i.e.
when RV is ON)
2) Refer to Sect 3.1 and 3.2 for the cooling operations (i.e.
when RV is OFF)
3) Refer to Sect 5.0.4 for the minimum mode-change delay
from COMP OFF.
4) 3 min delay from COMP-OFF to RV change state. (Cf.: Sect
2.8.8).
5) Because of the low ICT, IFAN is turned OFF while changing
from Auto Cool to Auto Heat mode. (Cf.: Sect 4.0.3). In
addition, HEs will not operate until IFAN is ON (Cf.: Sect
4.0.4).