Regulus CSE2 SOL G P Manuale utente
www.regulus.eu
CSE2 SOL G P
CSE2 SOL G P
EN
Installation and Operation Manual
CSE2 SOL G P SOLAR PUMP STATION
1. Introduction
Thanks to its design, CSE2 SOL G P solar pump station enables a simple and quick conenction
into a solar circuit. It is tted with a high-eciency solar pump of the latest generation that permits
continous ow control.
This pump station is intended for controllers with PWM control or with 230 V switching (ON/OFF).
2. Pump Station Description
Main Features
Application This twin-line solar pump station contains all components (except for a
controller) necessary for current and ecient operation.
Description The pump station consist of a UPM3 Hybrid 25-70 pump, check and safety
valves, 3 ball valves, ow indicator, pressure gauge, air separator with air
discharge, thermometer, installation kit and insulation.
The pump station further involves:
● connection point for an expansion vessel
● safety valve outlet
● ball valves for lling, draining and topping up a solar thermal system
Installation on a tank or wall
Working uid water-glycol mixture (max. 1:1)
Codes corresponding to connection sizes
Connection G 3/4“ M G 1“ M
Flow measurement range 2-12 l/min 8-28 l/min
Code 19990 19983
3. Pump Station Data
Data for CSE2 SOL G P Pump Station
Max. uid working temperature 110 °C
Max. working pressure 6 bar
Min. system pressure 1.3 bar with the pump stopped
Power supply 230 V, 50 Hz
IP rating IP20
Ambient temperature 5 - 40 °C
Max. relative humidity 85 % at 25 °C
Insulation material EPP RG 60 g/l
Overall dimensions (W x H x D) 310 x 490 x 155 mm
Total weight 5.9 kg
Min. values of working pressure**
Values of min. working pressure
at the pump suction port
depending on temperature
0,8 bar at 50 °C
1,2 bar at 90 °C
1,8 bar at 110 °C
** this condition is met for current installations when the initial system pressure is set following the formula (see the Instructions for
solar collectors): p = 1,3 + 0,1·h [bar], where h… is the height from pressure gauge to the middle of collector array [m]
3.1 Pressure drop diagram
1 - FLOWRATE INDICATOR W. BALL VALVE
2 - CIRCULATION PUMP
3 - CHECK VALVE
4 - BALL VALVE ON THE INCOMING PIPE
FROM SOLAR COLLECTORS
5 - BALL VALVE W. SIDE OUTLET FOR SAFE-
TY GROUP
6 - THERMOMETER (IN THE UPPER PART
OF INSULATION)
7 - PRESSURE GAUGE
8 - EXPANSION VESSEL CONNECTION
POINT, 3/4“ M
9 - 6 BAR SAFETY VALVE
10 - 3/4“ M FILL/DRAIN BALL VALVE
11 - SPANNER FOR CONTROL OF BALL
VALVE W. SIDE OUTLET AND BALL
VALVE OF THE INCOMING PIPE
12 - 3/4“ M FILL/DRAIN BALL VALVE
13 - AIR SEPARATOR W. AIR VENT VALVE
4. Pump Station Components
1
12
3
10
7
4
6
8
5
9
2
11
13
G 3/4“ M connection - code 19990 G 3/4“ M connection - code 19983
4.1 Check valve
The check valve prevents the tank from cooling down due to gravity circulation when the sun is not
shining. It is located below the ball valves and can therefore be removed and cleaned without having
to drain the solar uid from the entire circuit.
4.2 Ball valves
Ball valves are used to separate the pump station from the solar circuit. During servicing (including
cleaning of the check valve) there is no need to drain the uid from the solar system. For greater
rigidity of the hydraulic part of the pump station, the upper ball valve is attached to the xing back
plate.
The upper ball valves are operated by a lever which is not located on the valve during operation.
A wrench or pliers must be used to operate the lower ball valve, which is part of the ow indicator.
Turning the lever or the key or pliers a quarter turn to the right closes the ball valve. It opens when
the lever is turned to the left. Before closing / opening the ball valve, it is necessary to remove the
top part of the insulation. As a result, closing the system is reserved for installation or service tech-
nicians only. Thus, the user cannot simply close the solar circuit and cause stagnation and subse-
quent degradation of the solar uid.
The ball valves are equipped with a spindle packing with two O-rings with dimensions of 8.7x1.8
mm that can be easily replaced by removing the control element with stop ends and loosening the
packing nut with a # 21 spanner.
WARNING! IMPORTANT!
The safety valve, expansion vessel and upper ll/drain ball valve always remain connected to the
solar thermal system, even if the ball valves are closed! For this reason, never try to separate them
from the lled solar system, as there is a risk of serious injury and damage to the solar system!
Never close the drain line of the safety valve, it must always be free for any liquid leaking from the
safety valve!
5. Air Separator with Air Vent Valve
In order to remove air from the circuit perfectly, the pump station is equipped
with a so-called air separator with an air vent valve. After lling or topping up the
uid in the circuit and during the pre-season check, it is always recommended
to release the air using the air vent valve.
6. Installation Options
The solar pump station is designed to be mounted on a wall or a tank. In the rear section of the in-
sulation there are three mounting holes. The two upper holes are intended for installation on a wall
using the mounting kit included in supply. The two lower holes are intended for installation on a tank
(160 mm pitch) using the mounting kit included in supply. When mounting the pump station on a
tank, use large washers between the tank and pump station for both the holes; the third washer shall
be used for the lowest hole between the bolt head (M6x25) and the pump station. The washers are
included in supply.
7. Pump Station Connection Diagram
Contents of the mounting kit included in supply::
- for wall mount:
2 dowels, 8 TX
2 truss head screw, 5x50
2 large washers, (3xD)6.4
- for tank mount:
1 socket hex pan-head screw, M6x16 (middle hole)
1 socket hex pan-head screw, M6x25 (lower hole)
3 large washers, (3xD)6.4
Openings for wall mounting
Openings for tank mounting
KEY
1 – hot water storage tank
2 – el. heating element w. thermostat
3 – solar collectors
4 – CSE2 SOL solar pump station
5 – pump station for DHW recirculation – CSE TVMIX ZV
6 – safety kit for HW storage tank
7 – solar expansion vessel
8 – DHW expansion vessel
SV – cold water
TV – hot water
CV – hot water recirculation
KK – ball valve
ZV – check valve
AOV – automatic air vent valve
PTR – pressure temperature relief valve
REDV – pressure reducing valve (optional)
VK – drain valve
SVE – expansion vessel service valve
8. UPM3 HYBRID 25-70 Pump
Pump control
The circulation pump can be controlled:
• internally without PWM signal by selecting a constant pressure or constant speed mode
and a desired pump curve.
• externally by PWM C control signal (prole for solar systems)
WARNING – IMPORTANT
The pump permits to be controlled also by PWM A signal (prole for use in heating systems).
This mode must not be used for solar thermal systems.
Using the PWM A pump prole would cause system damage.
Using the proportinal pressure mode in the internal pump control is also not advisable.
Performance curves
Line type Description
Constant speed
Proportional pressure
Constant pressure
Description of Pump Frofiles
a) INTERNAL CONTROL - Proportional pressure
• Head (pressure): reduced with growing system
pressure drop and increased with sinking system
pressure drop.
• Pump operating point: moves up or down on the selected proportional pressure curve
depending on the current system pressure drop.
• Using the proportinal pressure mode for solar thermal systems is not advisable.
CONTROL MODE CONTROL MODE
Proportional pressure
IThe lowest curve of proportional pressure
II The middle curve of proportional pressure
III The highest curve of proportional pressure
AUTOADAPT
Automatically controls performance in the range from the
highest to the lowest proportional pressure curve
b) INTERNAL CONTROL - Constant pressure
• Head (pressure): kept constant, disregarded of
the system pressure drop.
• Pump operating point: moves on the selected constant pressure curve depending on the
current system pressure drop.
CONTROL MODE DESCRIPTION
Constant pressure
IThe lowest curve of constant pressure
II The middle curve of constant pressure
III The highest curve of constant pressure
AUTOADAPT
Automatically controls performance in the range from the
highest to the lowest constant pressure curve.
AUTOadapt mode mode is not advisable for solar
thermal systems.
c) INTERNAL CONTROL - Constant speed
• The pump runs at constant speed.
• Pump operating point: moves up or down on the selected curve depending on the current
system pressure drop.
CONTROL MODE Max. H (upper graph) Max. P1(lower graph)
Constant speed
I5 m 33 W
II 6 m 39 W
III 7 m 52 W
d) EXTERNAL CONTROL - PWM C (solar)
• The pump runs up to the max. head following the constant speed curve
set depending on the current PWM value.
• The speed will increase when the PWM value increases. If PWM equals 0, the pump will stop.
e) EXTERNAL CONTROL - PWM A (heating)
WARNING – IT IS PROHIBITED TO USE PWM A PUMP PROFILES
Using the PWM A (I, II, III) pump proles in a solar pump station would cause system damage.
Settings Display
DISPLAY - MARKING OF LEDs
For clarity, the marking of the LEDs is further
omitted.
DISPLAY CONTROL MODE
green LED NOT FLASHING INTERNAL
1Proportional pressure AUTOADAPT - not used for
solar thermal systems
2Constant pressure AUTOADAPT - not used for solar
thermal systems
3
Proportional pressure - not used
for solar thermal systems
I
4II
5III
6
Constant pressure
I
7II
8III
9
Constant speed
I
10 II
11 III
DISPLAY CONTROL MODE
green LED FLASHING EXTERNAL
12 PWM C
13
PWM A
I
WARNING
- DO NOT
USE THESE
MODES
14 II
15 III
FLASHING FREQUENCY OF
GREEN LEDS CONTROL RECEIVING PWM SIGNAL
Not flashing Internal -
1 flash per second External NO
12 flashes per second External YES
WARNING: LEDs may be turned by 90° or 180°, or mirrored, depending on the specific pump type.
When switched on, the pump runs at factory settings or the last setting. The display shows the
current pump performance.
Setting selection
To select your desired setting, press the button repeatedly until you find the setting you need (see
the table above). If you pass the desired setting, you have to go one more round until it appears
again. The order of modes corresponds to the table.
Error Display
DISPLAY CONTROL MODE
Seized pump
Too low power supply voltage
Electric fault
Pump Wiring
socket for power supply (A)
and signal transmission (B)
connector for power supply (A)
and signal transmission (B)
N (blue)
L (brown)
PE (yellow-green)
PWM GND (blue)
iPWM out (black)
PWM in (brown)
©2023 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
v1.0-07/2023
9. Filling a Solar Thermal System
For lling a solar thermal system, the ball valve above the pump must be closed and the ball valve
below the pump and on the incoming pipe from solar collectors open. The ball valves above the
pump are operated by means of the enclosed spanner. Connect the lling pump to the ll and
drain ball valves using hoses – see Chap. 4, and open these valves.
Prior to commissioning the system, all the three ball valves must be open!
OPEN
OPEN
10. Solar System Air Venting
• During operation of the lling pump, close the lower drain valve and increase the pressure to
about 5 bar;
• close the upper lling valve and turn o the lling pump, open the ball valve above the pump, do
not disconnect the lling pump hoses!
• Set the circulation pump to the highest level in the constant speed mode and, by turning it on and
o several times, vent the system using the air vent valve of the air separator and other automa-
tic air vent valves, especially on the solar collectors and others, if they are installed in the system
(the de-aerated pump works almost silently);
• continuously monitor the system pressure and if it drops, increase it to 5 bar by turning on the
lling pump and opening the lling valve;
• repeat the venting until the oat of the ow indicator takes a stable position during pump opera-
tion, shows a measurable ow and no bubbles appear in the sight glass. Then let the circulation
pump run for at least 5 minutes;
• close the air vent valve of the air separator after air discharge is complete, and if an automatic
venting valve(s) is (are) anywhere in the solar circuit, also close this valve after venting.
After lling and air venting the solar thermal system, close the ll/drain ball valve, adjust the sys-
tem pressure to the required value, disconnect the hoses of the lling pump and re-open the ball
valve above the pump.
THIS VALVE MUST BE
CLOSED
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