Rendamax E8.1121, Operating Instructions Manual, Page: 28 / 44

The parameters in this level change in
accordance with the heating circuit
function that has been selected
[HC FUNCTION]
HC FUNCTION (heating circuit function
selection)
If this parameter is modified the
controller is restarted. "RESET" briefly
appears in the display.
!
The special functions (02, 03, 04)
must be configured for heating
circuit 2 if a normal heating circuit
(00, 01) is additionally used in the
device.
00 => Standard heating circuit
01 => Control to fixed flow
temperatures
During the heating periods (see heating
program ) the heating circuit is
operated with a fixed preset flow
temperature [T-FLOW-DAY], and
during reduced mode operation with a
fixed preset flow temperature
[T-FLOW-NIGHT] accordingly.
02 => Swimming pool control (only
for heating circuit II)
This function can be used to heat a
swimming pool. The mixer controls the
flow temperature for the swimming pool
heat exchanger. The swimming pool
water temperature sensor is connected
to the room sensor connection for the
heating circuit (see FBR).
[Plug III; 1+2]
The flow temperature control operates
like normal room control
[ROOMS-INFL].
The set value for the water temperature
can be entered in the user area of the
associated heating circuit level
[POOL-TEMP 1/2/3]. The heating
program operates. No heating takes
place during the reduction period (frost
protection only).
The water temperature and the current
set value are displayed in the display
level [POOL-TEMP/RATED POOL-T].
28
Operation
Overview of display values and settings
Heating circuit I / II
Designation Value range Default IV
HC FUNCTION 00 - 04 00
PUMP MODE 00 - 03 00
MIXER OPEN
(not for HW circuit) 5-25 18
MIXER CLOSE
(not for HW circuit) 5-25 12
MAX FLOW-T 20°C - 110°C 80°C
MIN FLOW-T 10°C - 110°C 10°C
FROST PROT ----;
(-15)°C - (5)°C
0°C
OUT-TEMP-DEL 0:00 - 24:00 0:00
RETURN
Exit level using
Ä
SLOPE OFFSET 0K - 50K 5K
B-HEAT SINK 00, 01 (OFF/ON) 01 = ON
03 => Hot water circuit
This function can be used to operate
additional hot water circuits. The
heating circuit flow sensor is located in
the hot water storage tank.
The hot water temperature set value
can be entered in the user area of the
associated heating circuit level
[DHW-TEMP 1/2/3]. The heating
program for heating circuit acts as an
enable program for the storage tank.
The storage tank set value is set to
10°C during the reduction period.
The heat generator controller's hot
water priority function can be used
(partial priority acts like priority).
04 => Return flow temperature
increase via mixer motor
The heating circuit flow sensor is used
as a heat generator return flow sensor.
The mixer motor controls to the heating
circuit set value for 24 hours
[MIN-FLOW-T].
Installation tip: Mixer motor OPEN =>
heat generator flow is fed into the
return (=> return flow temperature
increase)
Mixer motor CLOSED => heating circuit
return is passed through. When the
mixer motor is open, it must be ensured
that there is circulation through the heat
generator (heat generator pump).
PUMP MODE (pump operating mode)
The circulation pumps are switched off
if heating is not required. The mixer
motors are closed at the same time =>
"The heating circuit is switched off".
(Switch on with 1K hysteresis)
The setting affects the weather-
controlled deactivation. Additionally,
the thermostat-controlled deactivation
takes effect if room regulation is
activated (ROOMS-INFL > 0).
-
Room temperature > room set
value + 1K
00 => Standard circulation pump
control
Heating time:
-
Outside temperature > room set
value +1K
Reduction time:
ROOMS-INFL =0:
-
The switch-off occurs during the
transition to reduction operation.
- Restart: Room temperature < room
set value The pump runs
continuously after switching on.
ROOMS-INFL = “--„:
-
Flow temperature setting < 20°C.