TECH
10
Example:
Monday
set: 3
00
AM, temp -10
0
C (weekly control setting– 10
0
C)
set: 4
00
AM, temp -10
0
C (weekly control setting– 10
0
C)
set: 5
00
AM, temp -10
0
C (weekly control setting– 10
0
C)
In this case, if the pre-set temperature of the CH boiler is 60
0
C, from 3
00
AM to 6
00
AM on Monday
the pre-set temperature will drop by 10
0
C, so it will be 50
0
C.
How to configure mode 2:
In order to configure mode 2, select Set mode 2 – the display shows a panel with two day groups
– Monday-Friday and Saturday-Sunday. Select the group to be edited and follow the same
procedure as with mode 1.
Example:
Monday-Friday
set: 3
00
AM, temp -10
0
C (weekly control setting – 10
0
C)
set: 4
00
AM, temp -10
0
C (weekly control setting – 10
0
C)
set: 5
00
AM
, temp -10
0
C (weekly control setting – 10
0
C)
Saturday-Sunday
set: 4
00
PM, temp 5
0
C (weekly control s5
0
C)
set: 5
00
PM, temp 5
0
C (weekly control s5
0
C)
set: 6
00
PM, temp 5
0
C (weekly control s5
0
C)
In this case, if the pre-set temperature of the CH boiler is 60
0
C, on each weekday (Monday –
Friday) from 3
00
AM to 6
00
AM the pre-set temperature will drop by 10
0
C, so it will be 50
0
C. During
the weekend, from 4
00
PM to 7
00
PM the pre-set temperature of the CH boiler will increase by 5
0
C,
so it will be 65
0
C.
NOTE
In order for the weekly control to function properly it is necessary to set current time
and day of the week in Fitter’s menu >> Time settings.
Delete
This function enables the user to delete all previous weekly control settings.
V.h.3)
DHW weekly control
This function enables the user to program daily DHW temperature changes. The temperature
deviation setting range is +/-10⁰C. To configure DHW weekly control settings follow the steps
described in CH boiler weekly control.
V.i)
Operation modes
The user may choose one of the following operation modes depending on individual needs:
V.i.1)
House heating
When this function is selected, only the house is heated. CH pump is activated when the
temperature is above the pump activation threshold. Below this temperature value (minus 2
O
C –
hysteresis) the pump is disabled.
V.i.2)
Water tank priority
In this mode, the water tank (DHW) pump is activated first and it operates until the pre-set DHW
temperature is reached (the valves close to the maximum and the valve pumps are switched off).
After the pre-set temperature has been reached, the pump is switched off and the mixing valves
are activated (along with the pumps – according to their settings).
The valves operate continuously until the water tank temperature drops below the pre-set
value minus hysteresis. Then, the valve pumps are disabled and the DHW pump is activated.
Содержание ST-979
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