Hitachi UTOPIA RAS-4HVRP2E - Defrost for Cold Area; Defrost for Cold Area (Jo); Priority Capacity Mode Setting (Nu); Slo Defrost Setting (Bj)

6 Optional functions
RAS-(4-6)H(V)(R/N)(C/P)2E
SMGB0136 rev.0 - 07/2021
137
6
6.2.3.6 Defrost for cold area (J)
Press PSW1 and select the setting condition “0” to “2” at the defrost for the cold area “J” to change the temperature
condition for starting defrost operation
Setting
condition
Standard specications Cold area specications Warm area specications
When change of defrost condition
is not set “J=0”
When change of defrost condition
is set
“J=1”
When change of defrost condition
is set
“J=2”
Temperature
conditions
under
defrosting
operation
6
4
9
-19
-10
A: Outdoor evaporation temperature (pipe) (ºC)
B: Defrost operation in the stop area.
C: Outdoor temperature (ºC)
D: Defrost operation in the start area.
6.2.3.7 SLo defrost setting (bJ)
Press PSW1 and select the settings condition “0” to “1” at the SLo defrost setting “bJ”.
The indoor fan stops during the defrost operation and starting of heating operation. However, the indoor fan can operate
at low speed during the defrosting operation and starting of heating operation.
Setting
condition
Indoor fan operation
At Start of Compressor Operation in Heating Operation During Defrost Operation After Defrost Operation
0 STOP STOP STOP
1 STOP SLo Speed SLo Speed
? NOTE
Theindoorfanmayoperateatotherspeeddependingonoutletairtemperatureoftheindoorunit.
6.2.3.8 Priority capacity mode setting (nU)
Press PSW1 and select the setting condition “0” to “3” at the priority capacity mode setting “nU”. By setting this function,
the target frequency, current limit of the compressor and the maximum indoor fan motor step are set higher.
? NOTE
• Donotusethesettingcondition“2”and“3”unlessthepowersupplywiringisofsufcientampacity,becausethetargetfrequencyand
currentlimitofthecompressorduringtheoperationaresethigher.
• Level1<level2<level3.
Setting condition Compressor frequency and current limit
0 Default setting
1 Compressor frequency limit is set higher to level 1
2 Compressor frequency limit is set higher to level 2
3 Compressor frequency limit is set higher to level 3