The installation diagram is indicative and does not replace the documentation for the construction of the heating
system made by an authorized person or company!
Trained and competent technicians must make hydraulic connections.
It’s allowed to make and other inspections in accordance with applicable country national laws where pellet boiler will be
installed and used.
Practical advice:
Take appropriate decisions when making connections for supply, return and drain the fluid in the heating system, which will
facilitate the removal of the pellet boiler if necessary in the future;
Water treatment:
Consider adding fluids against freezing and corrosion. Use softener, if water in the system has the values of hardness higher
than 19 dH.
Technician who installed the pellet boiler should provide suitable expansion vessel, depending on the type of system
that the device will serve.
It is obligatory installation of filter for incoming water. Failure to comply with this condition leads to FAILURE
WARRANTY of circulation pump!
Circulation pump
Delta Midi pumps are constructed with energy efficiency coefficient ≤ 0.20. they can reduce the
energy consumption with up to 80% compared with the standard circulation pump and at the
same time to keep the same level of power output and performance. The pump operates on the
principle of proportional pressure.
Technical data
Max. pumping
6.0 m
Max. flow rate
3,600
l/h
Electric consumption
P1(W)
3 - 42
Power supply
1 x 230V 50Hz
Noise levels
< 40 dB(A)
EEI
≤ 0.20
Safety class
IP 42
Heat class
TF 110
Surround temp.
0 °C до 40 °C
Fluid temp.
+5
до 110 °C
Max. pressure
10 bar (1 MPa)
Allowed liquids
Water for heating VDI 2035
Mixture water and glycol 1:1
Settings and pump outlet
The control of the pump is carried out by button:
All functions of the pump can be controlled with only one button. The pressing of the button activates different functions
depending from the pressing time.
• Short (< 3 sec.):
Select characteristic
Operation mode
PWM mode
• Long (3 - 8 sec.):
Select working characteristic
(constant,
Proportional or minimum)
• Long (8 - 13 sec.):
Venting programs
• Long (13 - 20 sec.):
PWM mode
• Long (> 20 sec.):
Lock/Unlock of the button
Venting program.
Pressing and holding of the button for 8-13 seconds is starting venting procedure. The duration is approx
4:30 minutes. The for LED’s are on up and down sequentially, and the program is going thru different levels with different
speeds and duration. The process can be interrupted by pressing and holding the button. The pump will return to the
previously selected mode.
H
(m)
0
1
2
3
4
5
6
0
1
2
3
4
Q m /h
3
Summary of Contents for CLASSIC 40C
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