Hitachi RAS-2-HVNP Service Manual page 283

8. Troubleshooting
  
Check mode items
RAS-(2-2.5)HVNP / RAS-3HVNP
Item
Input/output state of outdoor micro-
computer
Capacity of operating indoor unit
Inverter order frequency to compressor
Indoor order frequency to compressor
Air flow ratio
Outdoor unit expansion valve opening
Temperature at the top of compressor
Evaporating temperature at heating
Ambient air temperature
Control PCB information
Control PCB information
Inverter secondary current
Outdoor unit address
Indoor unit expansion valve opening
Liquid pipe temperature of indoor unit
(freeze protection)
Indoor unit intake air temperature
Indoor unit discharge air temperature
Cause of indoor unit stoppage
Accumulated Operating Time of Com-
pressor
Accumulated Operating Time of Com-
pressor
Alarm code for abnormal stoppage of
compressor
Cause of stoppage at inverter
Abnormal data record
Total capacity of indoor unit connected
Connected indoor unit number
Refrigerant adress
269
SMGB0079 rev.0 - 01/2013
Item
Check In- In-
No. dic. dic.
Indicates only for the segments corresponding to the equipment in
SC 
01
the figure. (See figure above)
00~199
02 oP 11
In case that capacity is higher than 100, the last two digits flash
0~115 ( Hz)
03 HI 74
In case that frequency is higher than 100Hz, the last two digits flicker
0~115 ( Hz)
H2 74
04
In case that frequency is higher than 100Hz, last two digits flicker
00~100 (%)
05 Fo 80
In case that air flow ratio is 100%, "
00~100 (%)
06 Eo 30
In case that expansion valve opening is 100%, "
00~142 (ºC)
d 02
07
In case that temperature is higher than 100ºC, the last two digits flash
08 E 2 -19~80ºC
o -3
09 -19~80ºC
F 20
10 Internal information of the PCB
A1 12
11 Internal information of the PCB
00~199 (A)
A2 20
12
In case that current is higher than 100ºC, the last two digits flash
nA 00
13 00~63
00~100 (%)
In case that opening is
14 EA 20
100%. "
15 LA 05 -19~127 (ºC)
16 iA 28 -19~127 (ºC)
17 oA 20 -19~127 (ºC)
18 dA 05 (See table at the next page)
0 to 9,999 (x 10 hours)
19 UJ 00 Alternately upper 2 digits and lower 2 digits are indicated every
0.5 sec.
0 to 9,999 (x 10 hours)
cU 00
20 Alternately upper 2 digits and lower 2 digits are indicated every
0.5 sec.
AC 08
21 Alarm code on compressor
i 1
22 (See table at the next page)
One of the abnormal data record from latest (n1) to oldest (n9) is
23 n1 00
indicated. Alarm code or cause code is indicated.
00~96
24 CP 22
In case that capacity is higher than 100, the last two digits flash
AA 2
25 00~64
26 GA 0 00~63
Indication data
Contents
00 " flashes
In case of twin/triple/quad-type unit,
the information of 2nd to the 4th indo-
or units is indicated repeatedly.
00 " flashes
The right character of the indication
represents the indoor unit setting No.
Single: A
Twin: A, b
Triple: A, b, c
Quad: A, b, c, d
00 " flashes
8