Regulus CSE OTS MFB+ZV W User manual

www.regulus.eu
CSE OTS MFB+ZV W
CSE OTS MFB+ZV W
EN
Installation and Operation Manual
CSE OTS MFB+ZV W PUMP STATION

│2
1. Introduction
CSE OTS MFB+ZV W Pump Station is designed for installation on a heating system flow pipe. The
pump station contains two ball valves, one ball valve is fitted with an integrated filter and magnet.
The filter can be easily removed and cleaned without any tools. The pump station is intended for
installation directly on a pipe, the minimum pipe centre distance from wall is 100mm.
2. Description of the Pump Station
Main Features
Application heating system flow
Description consists of PARA 25/8 SC 130 mm pump, ball valve w. non-return
valve, ball valve w. filter and magnet, thermometer, insulation
Working fluid water, water/glycol mixture (max. 1:1) or water-glycerine mixture
(max. 2:1)
Installation flow pipe, min. pipe centre distance from wall = 100 mm
Code 17818
Data for CSE OTS MFB+ZV W Pump Station
Fluid working temperature 5 - 95 °C
Max. working pressure 10 bar
Min. working pressure 0.5 bar
Ambient temperature 5 - 40 °C
Max. rel. humidity 80 % non condensing
Power supply 230 V, 50 Hz
Insulation material EPP RG 60 g/l
Overall dimensions 345 x 140 x 150 mm
Total weight 3.6 kg
Connections 2 x G 1" F
3. Direction of Flow through the Pump Station
SMĚR PROUDĚNÍ
FLOW DIRECTION

3 │
1. POWER SUPPLY (1 ~ 230V, 50 Hz)
brown (L)
blue (N)
yellow-green (PE)
4. Wilo Para 25/8 SC 130 mm Pump
Wilo Para 25/8 SC circulation pump is a wet-running circulation pump permitting to set speed
control to Δp-v, Δp-c or n=constant. The operating status and possible faults of the pump
are displayed by means of LEDs directly on the pump display. It is used exclusively for the
circulation of liquids in hot water heating systems. Operating the pump in other systems
or in systems lacking water, containing air bubbles or not pressurized can lead to its rapid
destruction.
Data for Wilo Para 25/8 SC Pump
Power supply 230 V, 50 Hz, from external controller
Power input (min./max.) 2 / 75 W
Current (min./max.) 0.03 – 0.66 A
Max. speed 4800 rpm
Speed control frequency converter
Energy Efficiency Index (EEI) ≤ 0.21 by EN 16297/3
IP rating IPX4D
Motor protection integrated
Max. head 8.4 m
Pump Wiring

│4
4.1. PUMP SPEED CONTROL
Variable differential pressure (Δp-v)
The Variable differential pressure operating mode
is recommended in systems where it is advisable
to reduce the discharge pressure of the pump in
parallel with the decreasing required flow rate. A
typical example is a heating circuit with radiators
equipped with thermostatic valves, where the
selection of this operating mode can reduce the
noise from thermostatic valves which is caused
by closing too many radiators in the system. This
mode, on the other hand, is unsuitable for
circuits with heat sources where the reduction
of the head and flow can make these sources
even inoperable.
By reducing the discharge as the flow decreases,
the pump‘s power consumption and therefore
the operating costs are significantly reduced
(see graph Q-P). In larger heating circuits and in
circuits where there are significant differences in
heating demand in separate heating zones, this mode may temporarily cause insufficient
heating. In these systems, it may be preferable to switch the pump to Δp-c mode.
Constant differential pressure (Δp-c)
The Constant differential pressure (constant
delivery head) operating mode is suitable for
hydraulic circuits of heat sources (boilers, heat
pumps, solar thermal systems etc.), hot water
storage tanks, heaters, underfloor heating
systems and large heating circuits where the
previous mode Δp- v could cause insufficient
heating through discharge reduction.By
decreasing the required flow, the pump maintains
a constant delivery head, thus the pump power
consumption decrease is more gentle than in the
Δp-v mode.
0
1
2
3
4
5
6
7
0
20
40
60 III
I
II
III
I
II
H [m]
max.
Δp-v
max.
Q [m³/ h]
0 1 2 3 4
P [W]
1
Q [m³/ h]
0 1 2 3 4
Δp-v (variabilní)
Δp-v (variable)
III
II
I
0
2
4
6
8
0
20
40
60 III
I
II
max.
Δp-c
max.
H [m]
P [W]
1
0 1 2 3 4
0 1 2 3 4
Q [m³/ h]
Q [m³/ h]
Δp-c (konstantní)
Δp-c (constant)

5 │
Constant speed (n=const.)
Constant speed operating mode means that
the pump does not adjust its speed in any way
depending on the flow rate or discharge of the
hydraulic circuit. The flow and discharge of the
pump are thus entirely dependent on the speed
setting set (I, II, III) and the hydraulic circuit
settings. This mode is used when the more
economical Δp-c mode is not suitable. This is the
same mode as in the older types of classic
circulation pumps where the speed I, II, III was
set by a selector switch.
For example, this mode may be suitable for older
circuit types where flow is regulated by throttling
and this method required to be maintained.
Furthermore, it may be suitable for solid fuel
boilers that are equipped with older types of
TSV valves with balancing using a manual
throttle valve, or in other similar specific cases of
requiring a constant pump performance.
0 1 2 3 4
max.
0
2
4
6
8
0
40
60
I
III
II
I
III
II
max.
Q [m³/ h]
Q [m³/ h]
H [m]
P [W]
1
0 1 2 3 4
konstantní otáčky I, II, III
20
constant speed I, II, III
4.2. TROUBLESHOOTING, RESTART, FACTORY SETTINGS
If air is present in the pump:
Activate the pump venting function by pressing and holding the
operating button for 3 sec. The upper and lower rows of LEDs will
flash in 1sec interval, see Fig.
Pump venting takes 10 minutes, after that the pump returns to current
mode. In order to cancel pump venting, press and hold the operating
button for 3 sec.
sec3
min10

│6
Operating button locking/unlocking
To lock the operating button, press it for 8 seconds.
The selected setting then starts flashing and cannot be changed. To
unlock, hold down the operating button again for 8 seconds and the
LEDs will stop flashing.
Manual restart
If the pump has been inactive for a long time or is blocked, activate
the manual restart by holding the operating button for 5 seconds.
The LEDs flash sequentially clockwise. The manual restart takes
max. 10 minutes before the pump returns to normal operation.
To cancel the manual restart, hold down the operating button for
5 seconds.
If the pump does not get unblocked, contact a qualified technician.
Factory settings
To return to the factory settings, press and hold the operating button for at least 4 seconds
(all LEDs flash for 1 second) and turn off the pump by unplugging. When switched on again,
the pump will run at the factory settings.
4.3. FAULTS, THEIR REASONS AND REMOVAL
The LED light signals a defect. The pump will switch off (depending on the defect
type) and try to restart.
sec
5
min10
sec
8
GREEN IS LIT
RED IS LIT
FLASHING RED
FLASHING RED AND GREEN
1 - pump is running in trouble-free operation
1 - rotor is blocked
2 - electric motor winding defect
1 - power supply lower/higher than 230 V
2 - electric short circuit in pump
3 - pump overheated
1 - unforced uid circulation through the pump
2 - pump speed lower than desired
3 - air in pump
LED signals State description and possible fault reasons

7 │
5. Ball Valve with Filter & Magnet
5.1. Maintenance, Cleaning
1. Close the ball valve by turning the lever by 90° in the direction of the OFF arrow (Fig. 1)
2. Unscrew the lid with magnet manually and take out the strainer (Fig. 2, 3).
3. Remove impurities from the magnet and strainer.
4. Return the clean strainer back to its place and screw on the lid with magnet.
5. Open the ball valve by turning the lever by 90° in the direction of the ON arrow (Fig. 4).
Fig. 1 Fig. 2
Fig. 3 Fig. 4

©2022 We reserve the right to errors, changes and improvements without prior notice.
REGULUS spol. s r.o.
E-mail: [email protected]
Web: www.regulus.eu
v1.1-08/2022