Heating Circuit 1 And 2 Functions - Fujitsu Super High Power Series Design & Technical Manual

3-4. Heating circuit 1 and 2 functions

• Heating circuit 1
Line Access
710 U
712 U
714 U
716 S
720 I
721 I
I
When the average of the outdoor temperatures over the past 24 hours reaches 18°C, the
730
regulator switches off the heating (as an economy measure). During summer mode, the display
shows "Eco". This function is only active in automatic mode.
I
740
(With dynamic radiator, adjust from 30 to 35°C)
I
Floor heating system = 50°C/Radiator = 65°C
741
Important
Maximum temperature limitation is not a safety function as required by ground heating.
750 S
S
As soon as the room temperature = [Setpoint line 710 (ex. 20°C) + Room temperature limitation
760 setpoint line 760 (ex. 0.5°C)] > 20.5°C → The heat pump is stopped.
It restarts when the room temperature falls below the setpoint.
(ex. room temperature < 20.0°C)
780 S
790 S
791 S
800 S
801 S
830 S
834 S
I
• Off: Early interruption of the current program, program inactive
• Operational heating
• Heating ready for occupation
850
• Operational heating + ready heating
• Ready heating + Operational heating
• Manual: Manual mode enables you to program your own concrete slab drying time.
The function ends automatically after 25 days.
I
851
This function enables you to set the custom concrete slab drying temperature. This temperature
remains fixed. The concrete slab drying program stops automatically after running for 25 days.
856 I
857 I
S
900
Operating mode at the end of concrete slab drying period.
3-4. Heating circuit 1 and 2 functions
Function
Comfort setpoint
Reduced setpoint
Frost protection setpoint
Comfort setpoint maximum
Heating curve slope
Offset of the heating curve
Summer/winter heating limitations
Flow temperature setpoint minimum 8°C...Flow temp setpoint maximum 17°C
Flow temperature setpoint
maximum
Room influence
Room temperature limitation
Quick setback
Optimum start control maximum
Optimum stop control maximum
Reduced setpoint increase start
Reduced setpoint increase end
Mixer valve boost
Actuator running time
Floor curing function
Floor curing setpoint manually
Floor curing day current
Floor curing days completed
Operating mode changeover
Setting range or display
Reduced setpoint...Comfort setpoint
maximum
Frost protection setpoint...Comfort
setpoint
4 °C...Reduced setpoint
20...35°C
0.1... 4
-4.5...4.5°C
8...30°C
Flow temp setpoint minimum...70°C 55°C
1...100%
0.5...4°C
Off
Down to reduced setpoint
Down to frost protection setpoint
0...360 minutes
0...360 minutes
-30...10°C
-30...10°C
0...50°C
30...873 seconds
0...95°C
0...32
0...32
None, Protection mode, Reduced,
Comfort, Automatic
- (03-12) -
Factory
setting
20°C
19°C
8°C
28°C
0.5
0°C
18°C
50%
0.5°C
Off
180 minutes
30 minutes
---°C
-5°C
0°C
240 seconds
Off
25°C
Reduced
3. Function table