78
Start-up - initial settings and functions
8.2 Initial unit setting (requires a specialised Technician)
8.2.1 DHW (Domestic Hot Water) mode settings
MENU > FOR SERVICEMAN > 1. DHW MODE SETTING
1 DHW MODE SETTING 1/5
1.1 DHW MODE
YES
1.2 DISINFECT
YES
1.3 DHW PRIORITY
YES
1.4 PUMP D
YES
1.5 DHW PRIORITY TIME SET
NONE
ADJUST
Fig. 68
1.1 DHW MODE (standard: YES - settable: YES/NO)
Enables/disables Domestic Hot Water mode
1.2 DISINFECT (standard: YES - settable: YES/NO)
Enables/disables the anti-legionella cycle
1.3 DHW PRIORITY (standard: YES - settable: YES/NO)
Defines whether DHW mode has priority over operation in Heating/Cooling mode
1.4 PUMP_D (standard: NO - settable: YES/NO)
Enables DHW recirculation management by the unit
1.5 DHW PRIORITY TIME SET (standard: NO - settable: YES/NO)
• Enables two controls and their respective parameters:
• in the presence of a DHW request, it defines a maximum operating time in Heating/Cooling mode before
switching to DHW (managed with parameter t_DHWHP_RESTRICT);
• in the presence of a system request, it defines a maximum operating time in DHW before switching to
Heating/Cooling mode (managed with parameter t_DHWHP_MAX).
MIN(T5S,T5stop)
MIN(T5S,T5stop)
dt5_ON
t_DHWHP
_MAX
t_DHWHP
time
T
tank
Fig. 69
w
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