Diagrams: DR-
SG120, DR-SG121
page 4 / 4
DHW release request
Release (1620) 24/24
Setting the anti-legionella cycle (if desired)
Activate the anti-legionella function
Anti-legionella function (1640)
stop / periodic / fixed day
of the week
Choice of repetition. From daily to every
7 days. 1640 = periodic
Function anti-legionella periodical (1641) 1 to 7 days
Choice of the day of the week
if 1640=fixed weekday
Function anti-legionella day week (1642) Monday ... Sunday
Anti-legionella launch time
Anti-legionella function time (1644) 00:00
Heating T° setpoint for anti-legionella
function
Anti-legionella setpoint (1645) as needed (°C)
Anti-legionella T° holding time
Anti-legionella function duration (1646) as needed (min)
•
DHW tank
menu
Adjust burner request
Outlet setpoint T° over-value (5020) +4 °C
DHW restart hysteresis
Differential (5024) 5 °C
•
Switch the DHW mode to permanent
comfort (as per parameter 1620)
OR
•
Switch the DHW regime to permanent
reduced
If you want to lower the DHW setpoint (reduced setpoint) for a specific time range, use the
following settings
Line No. Value
• Heating gas
menu DHW
DHW release request
Release (1620) Timer programme
4/DHW
• Timer program
menu 4/DHW
Choose the programming range
Preselection (560) e.g.: Monday-Sunday
Set the start of the comfort setpoint range
1st phase ON (561)
e.g.: 06:00 h
Set the end of the comfort setpoint range
1st phase Off (562)
e.g.: 22:00 h
•
Switch the DHW mode to permanent
comfort (as per parameter 1620)
Refer to the “§Electrical validation” chapter for the regulator input/output tests
Page 58 / 104
00U07337760-A
DORCHESTER DR-SG -
Installation, Operation and Maintenance