Regulus CSE SOL G P User manual

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CSE SOL G P
CSE SOL G P
EN
Installation and Operation Manual
CSE SOL G P SOLAR PUMP STATION

1. Introduction
CSE SOL G P Solar pump station allows a simple and fast connection to a solar thermal circuit
thanks to its design. It is equipped with a high-e󰀩ciency solar pump of the latest generation that
permits continuous ow control.
The pump station is intended for controllers with PWM control or 230V switching (on/o󰀨).
2. Pump Station Description
Main Features
Application This solar pump station involves all necessary components, except for a
controller, needed for everyday e󰀩cient operation of a solar thermal system.
Description It consists of a UPM3 Hybrid 25-70 pump, check and safety valves, 2 ball
valves, ow rate indicator, pressure gauge, thermometer, installation kits
and insulation.
The pump station further involves:
● outlet for expansion vessel connection
● outlet from safety valve, incl. extension piping led below the pump station
for an easy connection
● solar system lling, draining and topping-up valves
Installation on a tank or wall
Working uid water-glycol mixture (max. 1:1)
Code corresponding to connection size
Connections G 3/4“ M G 1“ M
Flow rate measurement range 2-12 l/min 8-28 l/min
Code 18958 18957
3. Pump Station Data
Data for CSE 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
Overall dimensions 470 x 265 x 120 mm
Total weight 6,6 kg
Min. working pressure values**
Min. working pressure values at the suction
port depending on temperature
0,8 bar at 50 °C
1,2 bar at 90 °C
1,8 bar at 110 °C
** for standard installations this condition is met when the initial system pressure is set following the formula (see the collector guide):
p = 1,3 + 0,1·h [bar], where h ... height from the pressure gauge to the middle of the collector array [m]

3.1 Pump Station Pressure Drop Graph
1 – FLOW RATE INDICATOR W. BALL VALVE
2 – CIRCULATION PUMP
3 – CHECK VALVE
4 – FILL/DRAIN HOSE SOCKET
5 – BALL VALVE WITH T-BRANCHE FOR
SAFETY GROUP
6 – THERMOMETER (IN INSULATION UPPER
PART)
7 – PRESSURE GAUGE
8 – EXPANSION VESSEL CONNECTION
POINT, ¾” M
9 – 6 BAR SAFETY VALVE
10 – FILLING BALL VALVE
11 – SPANNER FOR BALL VALVE WITH
T-BRANCHE
12 – DRAIN BALL VALVE
13 – SAFETY VALVE DISCHARGE PIPE,
22 mm diam.
4. Pump Station Components
1
2
3
4
5
6
7
89
10
11
12
13
Flowmeter 2-12 l/min Flowmeter 8-28 l/min

4.1 Check Valve
The check valve prevents the tank from being cooled down by gravity circulation during periods of
no sunshine. It is located between the ball valves so it can be removed and cleaned without the need
to drain solar uid from the entire solar circuit.
The right position during operation.
When the mark is on the left-hand side, the check valve is set to normal
operation position. If you need to open the valve (e.g. to drain the sys-
tem), rotate its control so that the red dot is on the right-hand side. The
check valve function is thus out of operation.
It is important for proper operation of the pump station under normal use
to have the check valve control always in the right position, i.e. the red
mark on the left-hand side (see g.).
!
4.2 Ball Valves
Ball valves are intended to isolate the pump station from a solar circuit. Then it is not necessary to
drain the solar circuit for servicing (incl. cleaning the non-return valve). In order to have a more solid
hydraulic section of the pump station, the upper ball valve is xed to the rear mounting plate.
The upper ball valve is controlled by a lever that is not present on the valve during operation. To
control the lower ball valve that is a part of the ow rate indicator a spanner of pliers are needed.
The valve is closed by turning the lever (or spanner/pliers) clockwise by 90°. It is opened by turning
the lever anti-clockwise. Prior to turning the lever, the upper part of the insulation needs to be re-
moved. Thanks to that, shutting o󰀨 the solar circuit is reserved to installers and servicing sta󰀨. The
user cannot simply shut o󰀨 the solar circuit, bringing about stagnation and subsequent solar uid
degradation.
The ball valves are tted with a gland with two O-rings (8.7x1.8 mm) that can be easily replaced after
the control element with stops is removed and the gland nut released using a #21 spanner.
WARNING! IMPORTANT!
The safety relief valve, expansion vessel and upper lling valve always remain connected with the
solar thermal system, even when the ball valves are shut o󰀨! Never try to isolate them from a lled
solar thermal system as there is a risk of serious injury and damage to the system!
Never close the safety valve discharge piping, it shall remain free for uid eventually discharged
by the safety valve!
5. Accessories
Accessories (not included in supply) Code
Straight Pipe Fitting, Cu 22 x Cu 22 7629
Straight Pipe Fitting, Cu 22 x G 3/4“ M 13695
These accessories are not included in supply.

6. Installation Options
The solar pump station is designed to be mounted on a wall or a tank. In the rear section of the insu-
lation there are two mounting holes. The lower hole is accessible only when the electronic controller
and wiring box are removed from the insulation rear section (see the g. below).
The package includes a mounting kit that is used to x the pump station to the intended place.
7. Pump Station Connection Diagram
HOLES IN THE REAR IN-
SULATION SECTION FOR
MOUNTING THE PUMP
STATION
KEY
1 hot water storage tank
2 electric heating element with thermostat
3 solar collectors
4 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 a PWM signal by selecting a suitable mode and pump performance curve
• by an external PWM C control signal (prole for use in solar thermal systems)
WARNING – IMPORTANT
The pump permits also control by a PWM A control signal (prole for use in heating sys-
tems).
This mode must not be used for solar thermal systems.
Using the PWM A mode would cause system damage.
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.
CONTROL MODE DESCRIPTION
Proportional pressure
I The 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
I The 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
c) INTERNAL CONTROL - Constant speed
• The pump runs at a constant speed.
• Pump operating point: moves up or down on the selected constant 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 set constant speed
curve depending on the current PWM value.
• The speed will increase with the increase of the PWM value. If PWM equals 0, the pump will
stop.
e) EXTERNAL CONTROL - PWM A (heating)
WARNING – USING PWM A MODES IS PROHIBITED
Using PWM A modes (I, II, III) in a solar pump station would lead to system damage.

Settings Display
DISPLAY - LED MARKING
The LED marking is further omitted for better
clarity.
DISPLAY CONTROL MODE
green LED FLASHING INTERNAL
1Proportional pressure AUTOADAPT
2Constant pressure AUTOADAPT
3
Proportional pressure
I
4II
5III
6
Constant pressure
I
7II
8III
9
Constant speed
I
10 II
11 III
DISPLAY CONTROL MODE
green LED NOT FLASHING EXTERNAL
12 PWM C
13
PWM A
IWARNING
– USING
THESE
MODES IS
PROHIBITED
14 II
15 III

GREEN LEDS FLASHING
FREQUENCY CONTROL PWM SIGNAL RECEPTION
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)
power supply (A)
and signal (B) terminals
N (blue)
L (brown)
PE (yellow-green)
PWM GND (blue)
PWM out (black)
PWM in (brown)

©2021 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
v1.0-11/2021
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 open. The ball valve above the pump is operated by means of the enclosed spa-
nner. Connect the lling pump to the ll and drain ball valves using hoses – see Chap. 4, and open
these valves. After lling the solar thermal system, close the ll and drain ball valves, disconnect
the hoses and re-open the ball valve above the pump.
Prior to commissioning the system, both the ball valves must be open!
CLOSED
OPEN