Troubleshooting; General Symptoms - Daikin EKHBX008BB3V3S Installation Manual

A
PPENDIX
(for restricted power supply condition mode only)
First Second
code code Setting name
d Restricted power supply condition mode/local shift value weather dependent
00 Not applicable. Do not change the default value.
01 Not applicable. Do not change the default value.
02 Restricted power supply condition mode
03 Local shift value weather dependent
04 Not applicable.
05 Pump operation forced off or permitted during
backup heater is forced off at benefit kWh rate
power supply ([d-00]=0 or 1)
06 Not applicable.
E Unit information readout
00 Software version
01 EEPROM version
02 Unit model identification. Do not change the default
value.
03 Liquid refrigerant temperature
04 Inlet water temperature
F Option setup
00 Pump operation stop
01 Space cooling permission temperature
02 Bottom plate heater ON temperature
03 Bottom plate heater hysteresis
04 Functionality of X14A
Underfloor heating screed dry-out program
05 Action number selection
06 Heating set point of selected action number [F-05]
07 Time of selected action number [F-05]
08 Underfloor heating screed dry-out program enabled/
disabled
09 Latest action number executed
(a) Only possible to modify the first 3 minutes after power ON.
(b) For all action numbers of [F-05].
11. T
ROUBLESHOOTING

11.2. General symptoms

Symptom 10: Unexpected backup heater operation
P
OSSIBLE CAUSES
Entering water temperature is too
low and leaving water temperature
>25°C.
Too frequent use of the backup
heater during heating operation or
domestic water heating.
Installation manual
57
(a)
.
C
ORRECTIVE ACTION
Increase the water flow.
The water volume in the cicuit is too
low.
Installer setting at variance with default value
Date Value Date
Default
Value value Range
0 0/1/2/3
0 (OFF) 0/1/2
0 (OFF) 0/1
0 (OFF) 0/1/2/3/4
— —
0 (forced
0/1
off)
— —
Read only —
Read only —
depending
—
on model
Read only —
Read only —
0
0/1
(enabled)
20 10~35
3 3~10
5 2~5
1 0/1
1 1~20
(b)
25.0 15~55
(b)
0 0~72
0 (OFF) 0/1
0~21
0
(Read only)
Indoor unit for air to water heat pump system
Step Unit
1 —
1 —
— —
1 —
— —
1 —
— —
— —
— —
— —
1 °C
1 °C
1 —
1 °C
1 °C
1 °C
— —
1 —
1 °C
12 hour
1 —
0 —
EKHBX008BB3V3S
4PW62597-1 – 10.2010