Service Menu - Only For The Installer; Anode; Legionella - CTC EcoWater 300 Instructions D'installation Et D'entretien

Man.days
This parameter displays the number of holiday days. The holiday days can be selected with the
1
rotary/push button. The possible selections are between: 1-99.
ReDays
This parameter displays the status of the remaining number of holiday days.
0
The possible values are 0-99
Boost
This parameter activates/deactivates the BOOST operating mode in the case of additional need
Off
for DHW. If the BOOST operating mode is activated, "ON", the DHW production will be made by
the HP and the supplementary electrical heating will either be for a maximum cycle of 1 hour or
up until T max is reached. Possible values are "Off", "On". The default setting is "OFF".
Fan Pause
When activated, the fan will stop for either 15 or 30 seconds every full operating hour, according
Off
to the selected value.
3.4

Service menu - Only for the installer

Language
Danish, Swedish, German, English, Spanish, Portug., Dutch, French, Polish.
English
Software
The menu presents actual software version.
1.31
Defrost
Shows defrosting method: "GAS" (standard).
Def.Gas

Anode

"Off", "On"
Off
Activated if signal anode is installed.
T max
"T max" is the highest temperature allowed, set in menu "SETPOINT".
55 °C
Temperature range from 5 °C to 62 °C.
(Please note that the efficiency of the heat pump is reduced at higher temperatures)
3.2 Anode
The storage tank is corrosion protected internally with enamel. To prevent corrosion in the small defect that can
appear with enameled corrosion protection an automatic sacrificial anode is placed in the storage. The anode menu
will show "Auto", and alarm no. 9 will light up if the anode is worn and has to be replaced.
Defrosting
If the temperature at the evaporator is -2 °C or less, defrosting is activated. The time interval between the defrosting
periods is 2 hours. This means that a defrost sequence is started every 2 hours as long as the evaporator
temperature is below -2 °C. During the defrost sequence the bypass valve opens, the compressor will run and the
fan is switched off. When the evaporator temperature reaches +5 °C, the defrost cycle is stopped and the bypass
valve closes, and the fan starts. If the temperature for the evaporator does not reach +5 °C within 20 minutes, the
defrosting will stop and the normal operation is continued anyway. If the evaporator temperature reaches -18 °C or
less the heat pump will stop. The supplementary heating source (if activated) will be used.
3.3

Legionella

The legionella function can be activated in the control system. If the function is activated the sequence will start
immediately. After 7 days (168 hours) a new legionella sequence will start. During the legionella sequence the water
temperature is raised to 65 °C using the heat pump and the additional heating source. This temperature is held for
1 hour before switching back to normal mode. If the temperature is not reached in 12 hours the function will timeout.
An alarm will be presented in the display. The alarm will be reset as soon as a successful sequence is made (or if the
alarm is confirmed by user). Reasons for a timeout; too low air temperature and/or water use is higher than the power
input and/or supplementary heating is blocked.
!
For best performance, the Legionella function shall be activated when the
domestic hot water demand is low. for example at 22.00.
English
15
CTC EcoWater