Hitachi PC-ARFG-E Installation & Operation Manual page 96
Wired remote controller
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Also See for PC-ARFG-E:
- Instruction manual (164 pages) ,
- Installation & operation manual (105 pages) ,
- Instruction manual (12 pages)
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SERVICE & INSTALLATION MENU
Checking the current operating condition
Contents in Check 1
Temperature Status Display
1
Set Temp.
2
Inlet air temperature
3
Outlet air temp
4
Liquid pipe temp.
5
Remote thermistor temperature
6
Outdoor temp.
7
Gas pipe temperature
8
Evaporating temp. at heating
Control information
9
Condensing temp. at cooling
10
Comp. top temperature
11
Thermo temp. of wired controller
12
Control information
Unit control display
13
I.U Micro-computer
14
O.U Micro-computer
15
I.U Control software number
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82
PMML0565 rev.1 - 04/2022
When Auto Cool/Heat is activated with the dual set point option, both
b1
22
temperature settings are displayed by "b1" parameter
Normal
b2
20
Abnormal
b3
55
?
b4
20
During transition such as start-up, "--" may be
indicated temporarily.
b5
25
The value is indicated only when the remote thermistor is installed. Otherwise
"--" is indicated.
b6
10
b7
25
For the indoor unit with multiple thermistors. For Evaporating Temperature at
b8
02
Heating, the minimum temperature is indicated.
The internal information of the wired remote controller is indicated. For multi-
b9
--
type indoor units, the number of running compressors is indicated.
The inlet gas temperature is indicated.
b9
06
"FF" is indicated if the temperature is above 201°C. For the indoor unit
bA
41
installed with multiple compressors, the average temperature of the running
compressor is indicated.
bb
23
For flexible multi-type, the value of Inverter Compressor in Unit A is indicated.
bC
00
No Indication
C1
C2
-
C3
0000
(except for multi-type unit)
No Indication
?
N O T E
If the (output) relay is not listed depending on the type of the indoor unit, there
is no indication.
Temperature indication
--
Thermistor is disconnected
Or
or PCB is broken
00
(for "10 Comp. top temp." only)
FF
Thermistor is short
N O T E
circuited or PCB is broken
Segments Indication
Cool only type unit
Alarm
Operation
H2
Thermo-ON
for Cooling
Segments Indication
Tenant type unit
Y21
Y52C
Y20A
YCH
Outdoor fan
Wired
remote
controller
checks
connection
parts on
PCB
Cool heat type unit
No Indication
Alarm
H2
Thermo-ON
for Heating
52H
Thermo-ON
for Cooling
Multi-type uni
Y21
No Indication
1
Y52C
2
Y21
2
Y20A
Outdoor fan
Y20B
Y52C
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