Ferroli RMA series, Installation And Operator'S Manual

Page: 36 / 44

36
CONTROL SYSTEM
Label Description RW
Register
address
Bit
number
Lsb CPL EXP UM
Dec Hex
COOL
Set point cooling RW 16900 4204 16 0 Y -1 °C
HEAT
Set point heating RW 16902 4206 16 0 Y -1 °C
CF19
Remote stand by enable RW 49303 C097 8 0 Y 0 -
CF20
Remote Cooling-Heating enable RW 49304 C098 8 0 Y 0 -
CF63
Device serial address RW 49178 C01A 8 0 N 0 -
tr01
Heat pump enable RW 49665 C201 8 0 N 0 -
tr17
Heat pump lock set point RW 16930 4222 16 0 Y -1 °C
PI05
Modulating pump speed : cooling RW 49749 C255 8 0 N 0 %
PI11
Modulating pump speed : heating RW 49757 C25D 8 0 N 0 %
Hi02
Integrative electrical heaters enable RW 49858 C2C2 8 0 N 0 -
CP01
Compressor operating hours R 753 02F1 16 0 N 0 ore
PU01
Pump operating hours R 763 02FB 16 0 N 0 ore
AI01
Water inlet probe R 344 0158 16 0 Y -1 °C
AI02
Water outlet probe R 346 015A 16 0 Y -1 °C
AI03
Liquid line probe R 348 015C 16 0 Y -1 °C
AI04
Outdoor air probe R 350 015E 16 0 Y -1 °C
- Unit operating in COOLING R 33028 8104 1 4 N 0 -
- Unit operating in HEATING R 33028 8104 1 6 N 0 -
- Unit in STAND BY (user interface or serial communication) R 33028 8104 1 2 N 0 -
- Unit in STAND BY (digital input) R 33028 8104 1 3 N 0 -
- Unit in OFF R 33028 8104 1 0 N 0 -
- COOLING mode enable * W 33471 82BF 1 3 N 0 -
- HEATING mode enable * W 33471 82BF 1 4 N 0 -
- STAND BY enable * W 33471 82BF 1 5 N 0 -
- Unit switching on ( 1 = ON ; 0 = OFF ) W 33471 82BF 1 7 N 0 -
- Alarm
Er05
R 33037 810D 1 5 N 0 -
- Alarm
Er20
R 33039 810F 1 4 N 0 -
- Alarm
Er30
R 33040 8110 1 6 N 0 -
- Alarm
Er41
R 33042 8112 1 1 N 0 -
- Alarm
Er45
R 33042 8112 1 5 N 0 -
- Alarm
Er46
R 33042 8112 1 6 N 0 -
- Alarm
Er60
R 33044 8114 1 4 N 0 -
- Alarm
Er61
R 33044 8114 1 5 N 0 -
- Alarm
Er62
R 33044 8114 1 6 N 0 -
- Alarm
Er68
R 33045 8115 1 4 N 0 -
* If several operation modes are enabled by mistake :
- OFF has priority over STAND BY, HEATING, COOLING
- STAND BY has priority over HEATING, COOLING
- HEATING has priority over COOLING
Temperature Resistance
[°C]
[k
Ω
]
0 25,7950
5 21,3963
10 17,7477
15 14,7213
20 12,2110
25 10,1287
30 8,4015
35 6,9688
40 5,7805
45 4,7948
50 3,9771
55 3,2989
Probes characteristics
The temperature probes used are NTC 10K (10 kΩ at 25°C).
When the probe bulb is at the temperature of 25°C the electrical resi-
stance measurable at the probe ends is 10 kΩ.
The thermistor of these probes has a negative temperature coefficient:
the electrical resistance value decreases as the temperature increases.
To find out if a temperature probe is faulty or disconnected, check the
correspondence between the resistance value in kΩ and the bulb tem-
perature in °C according to the table.
For a reliable verify it is not necessary to check all the single values but
is enough to check some random values. If the instrument indicates
neverending resistance then the probe is interrupted.