Operation Parameter - HTW ECO-THERMAL PLUS -V18WD2RN8PLUS Manuel De L'utilisateur Et D'installation

Symptom 8: DHW mode can't change to Heat mode immediately
POSSIBLE CAUSES
Heat exchanger for space
heating not big enough
Space heating load is small
Disinfect function is
enabled but without TBH
Manual turn on the FAST WATER
function, after the hot water meets
the requirements, the heat pump
fails to switch to the air-conditioning
mode in time when the air
conditioner is in demand
When the ambient temperature is
low, the hot water is not enough
and the AHS is not operated or
operated late
DHW mode priority
Symptom 9: DHW mode heat pump stop work but setpoint not reached, space heating require heat but unit stay in DHW mode
POSSIBLE CAUSES
Surface of coil in the tank
not large enough
TBH or AHS not available

13.3 Operation parameter

This menu is for installer or service engineer reviewing the operation parameters.
At home page, go to ''MENU''>''OPERATION PARAMETER''.
Press ''OK''. There are six pages for the operating parameter as following. Press ''▼ ''、 ''▲'' to scroll.
OPERATION PARAMETER
ONLINE UNITS NUMBER
OPERATE MODE
SV1 STATE
SV2 STATE
SV3 STATE
PUMP-I
ADDRESS
OPERATION PARAMETER
T5 WATER TANK TEMP.
Tw2 CIRCUIT2 WATER TEMP.
TIS' C1 CLIMATE CURVE TEMP. 35°C
TIS2' C2 CLIMATE CURVE TEMP. 35°C
TW_O PLATE W-OUTLET TEMP. 35°C
TW_I PLATE W-OUTLET TEMP.
ADDRESS
• Set "t_DHWHP_MAX" to minimum value, the suggested value is
60min.
• If circulating pump out of unit is not controlled by unit, try to
connect it to the unit.
• Add 3-way valve at the inlet of fan coil to ensure enough water
flow.
Normal , no need for heating
• Disable disinfect function
• add TBH or AHS for DHW mode
Manual turn off the FAST WATER function
• Set "T4DHWMIN", the suggested value is ≥ -5℃
• Set "T4_TBH_ON", the suggested value is ≥ 5℃
If there is AHS or IBH connect to the unit, when the outdoor unit failed, the
indoor unit must run DHW mode till the water temperature reach the setting
temperature before change to heating mode.
The same solution for Symptom 7
Heat pump will stay in DHW mode untill "t_DHWHP_MAX" reached or
setpoint is reached. Add TBH or AHS for DHW mode,TBH and AHS should
be controlled by the unit.
#01 OPERATION PARAMETER
1 PUMP-O
COOL PUMP-C
ON PUMP-S
OFF PUMP-D
OFF PIPE BACKUP HEATER
ON TANK BACKUP HEATER
ADDRESS
1/9
#01 OPERATION PARAMETER
53°C Tbtu BUFFERTANK_UP TEMP.
35°C Tbtl BUFFERTANK_LOW TEMP. 35°C
IDU SOFTWARE
30°C
ADDRESS
4/9
60
CORRECTIVE ACTION
CORRECTIVE ACTION
OPERATION PARAMETER
#01
GAS BOILER
OFF
T1 LEAVING WATER TEMP.
OFF
WATER FLOW
OFF
HEAT PUMP CAPACTIY
OFF
POWER CONSUM.
OFF
Ta ROOM TEMP
ON
ADDRESS
2/9
#01 OPERATION PARAMETER
35°C ODU MODEL
COMP.CURRENT
01-09-2019V01 COMP.FREQENCY
COMP.RUN TIME
COMP.TOTAL RUN TIME
EXPANSION VALVE
ADDRESS
5/9
#01
OFF
35°C
1.72m /h
3
11.52kW
1000kWh
25°C
3/9
#01
6kW
12A
24Hz
54 MIN
1000Hrs
200P
6/9