4 Operation
User reference guide
11
RGSQH10S18AA9W
ROTEX HPU ground
4P374247-1 – 2014.03
In scheduled mode, you can do the following:
You can…
Location
Read out
the active or next scheduled desired
temperature.
DHW tank
temperature
home page
Overrule
the active or next scheduled desired
temperature
.
Condition: is displayed on the DHW tank
temperature home page.
Activate
the DHW tank
booster mode.
Select
a DHW tank temperature
schedule
.
Menu structure
Program
a DHW tank temperature
schedule
.
Define preset values
that are used by the
DHW tank temperature schedule.
(Only for field supplied domestic hot water
pump for secondary return)
Program a domestic hot water pump schedule
to determine when to turn ON and OFF the pump.
When turned ON, the pump runs and makes sure
hot water is instantly available at the tap. To save
energy, only turn ON the pump during periods of
the day when instant hot water is necessary.
See also:
▪
"4.5.5 Using the DHW tank temperature home page" on page 11
▪
"4.5.6 Using the DHW tank booster mode" on page 12
▪
"4.7 Preset values and schedules" on page 14
4.5.4
Sch reheat mode
In sch reheat mode ( ), the domestic hot water control is
the same as in scheduled mode. However, when the DHW tank
temperature drops below a preset value (=reheat tank temperature –
hysteresis value = [6-0C]–[6-08]; example: 35°C), the DHW tank
heats up until it reaches the reheat set point ([6-0C]; example: 45°C).
This ensures that a minimum amount of hot water is available at all
times.
Example:
t
Tt
60°C
00:00
07:00
50°C
45°C
15°C
14:00
21:00
35°C
1
2
4
5
3
[6-0C]=
[6-0B]=
[6-0A]=
[6-0C]–[6-08]=
[6-08]
T
t
DHW tank temperature
t
Time
[6-0A]
Storage comfort
[6-0B]
Storage eco
[6-0C]
Reheat
[6-08]
Reheat hysteresis
In sch reheat mode, you can do the following:
You can…
Location
Do the same things as in scheduled mode.
—
Adjust the preset value
(Reheat).
Menu structure
See also:
▪
"4.5.3 Scheduled mode" on page 10
▪
"4.7 Preset values and schedules" on page 14
4.5.5
Using the DHW tank temperature home
page
Typical DHW tank temperature home pages
Depending on the user profile, the user interface gives you either a
basic or a detailed home page. Depending on an installer setting,
either an actual temperature or a number of people is displayed to
indicate the domestic hot water tank temperature. The examples in
the illustrations below are in DHW tank mode = Scheduled.
User profile = Basic
User profile = Detailed
0RQ
7DQN
'HVLUHGWHPSHUDWXUH
r&
0RQ
7DQN
6WRUDJHFRPIRUW
r&
7XH
0RQ
7DQN
'HVLUHGWHPSHUDWXUH
0RQ
7DQN
6WRUDJHFRPIRUW
7XH
Depending on an installer setting, you have to define how much hot
water you want differently:
If you see…
Then you have to define…
r&
To which temperature the
DHW tank has to heat up.
For how many people you need
hot water. The software then
automatically calculates the
corresponding DHW tank
temperature based on installer
settings.
To read out and adjust the desired reheat temperature (in
scheduled and reheat mode)
1
Go to [7.4.3.3]:
> User settings > Preset values > Tank
temperature > Reheat.
Result:
You can read out the desired reheat temperature.
2
Press
or
to adjust.
To read out and overrule the active or next scheduled desired
temperature (in scheduled mode or sch reheat mode)
1
Go to the DHW tank temperature home page (Tank).
Result:
r&
or
is displayed.
t
a
b
Tt
A1 A2
B1
B2
A1
A1 A2
B1
B2
A1
T
t
DHW tank temperature
t
Time
