Hitachi RCUE40AG2 Service Manual page 93

Troubleshooting
PCB RSW1,2 (SW5): Setting Temperature in Cooling Mode with to digits and the sign indicated in
−
B1
SW5
(PCB RSW1,2 & SW5: No function)
B2
In case of Brine 2 Option can be set negative temperatures.
PCB RSW3,4: Setting Temperature in Heating Mode with to digits (Only available in Heat Pump
−
B1
Models- RHUEXXXAG2)
(PCB RSW3,4: No function)
B2
PCB RSW5,6,7: CT Sensor function (Supplied as standard)
−
B1
(PCB RSW5,6,7: No function)
B2
Num. "X" Model (HP)
2 40
3 50/100
5 60/120/180
6 70/140/210/280/350
7 80/160/240/320/400
e.g.:
RCUE40AG2: Compressor load is "down" and "hold" for 30min (Y=3; 3*10min) when compressor current is
higher than 48 A (X=2; 1.2*40A).
PCB RSW8: Temperature band for Neutral Zone (See also DSW5)
−
B1
(PCB RSW8: No function)
B2
Figure 0
Band (degree) 0.5
pag. 91
SMGB0003 rev.0 - 01/2007
X
1
,
RSW5
RSW6
Y
X
RSW7
Compressor load is kept for period when CT sensor measures set current
1 2 3 4
1.0 1.5 2.0 2.5
40A 40 HP
50 HP
X
60 HP
50A 70 HP
80 HP
10 min.
5 6 7
3.0 3.5 4.0
5 5
8 9
4.5 5.0