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Solar / opt. functions / Add new function / Cooling mode
Adjustment
channel
Description
Adjustment range /
selection
Factory setting
Var.
Cooling logic variant
Col. cool, Syst. cool., Off Off
Tcolmax.
Collector maximum temperature 70 … 190 °C
100 °C
Store (1 … 4) Store succession order
system dependent
system dependent
St cooling
Store cooling
Yes, No
No
∆
Ton
Switch-on temperature difference 1.0 … 30.0 K
20.0 K
∆
Toff
Switch-off temperature difference 0.5 … 29.5 K
15.0 K
Holiday
Holiday function
Yes, No
No
Activation
Activation mode
Manual, Timer
Timer
On
Holiday function switch-on date
Dates up to 31.12.2099 Current date
Off
Holiday function switch-off date
Dates up to 31.12.2099 On + 7 days
Input
Holiday function switch input
system dependent
system dependent
Stmax (1 … 4)
Maximum store temperature
Holiday function
4 … 95 °C
40 °C
The Holiday function works like the store cooling function but aims to cool the
store further down during times without DHW consumption in order to prepare
it for solar loading on the following day. This function can only be activated if the
store cooling function is activated.
The holiday function can either be activated manually when a phase with no DHW
consumption begins, or a time frame, during which the function is to become ac-
tive, can be set in advance. If Manual is selected, an input can be allocated to the
function. When a switch is connected to the allocated input, it will act as an on/off
switch for the holiday function.
Drainback option
Solar / opt. functions / Add new function / Drainback
Adjustment
channel
Description
Adjustment range /
selection
Factory setting
Filling time
Drainback fi lling time
1 … 30 min
5 min
Stab. time
Stabilisation time
1.0 … 15.0 min
2.0 min
Initialis.
Initialisation time
1 … 100 s
60 s
Booster
Booster option
Yes, No
No
Relay
Booster pump relay selection
system dependent
system dependent
Drain impulse Drain impulse option
Yes, No
No
Delay
Delay time
1 … 30 min
3 min
Duration
Drain impulse loading duration
1 … 60 s
10 s
Funct.
Activation / Deactivation
Activated, Deactivated Deactivated
S1
S3
S2
S4/TR
R1
R2
Booster pump
Exemplary drainback system layout (R2 = booster pump)
Содержание BW/H Komfort HE
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