English (GB)
6
5. Product description
Fig. 1
System principle
The Grundfos RCME rainwater system consists of a pressure-
boosting unit and a control cabinet with a Grundfos CU 361
control unit. The system also includes a Grundfos SPO
submersible pump which functions as feed pump for the RCME
pressure-boosting unit. Install the feed pump in a rainwater
collecting tank.
The RCME unit incorporates back-up of mains water supply.
This function is automatically activated if the collecting tank is
emptied, for example during long periods without rain.
The RCME system is operated and monitored via the user-
friendly control panel on the CU 361 control unit that monitors and
controls the rainwater system.
The RCME system can communicate in many different ways, for
example with a building management system.
5.1 Overview of system components
The RCME system consists of the following components:
•
RCME 5-4 pressure-boosting unit
– CME 5-4 booster pump
– buffer tank
– integrated pressure vessel
– mains water valve
– steel base plate with outlet connection
•
control cabinet with CU 361 control unit
•
SPO 5-55 submersible feed pump with floating suction strainer
•
hydrostatic pressure sensor for collecting tank
•
hose for connection between the booster pump and the base
plate outlet connection.
6. Identification
6.1 Nameplate
Fig. 2
Nameplate
6.2 Type key
T
M
05
41
12
45
1
1
Pos.
Description
1
Mains water supply
2
Wastewater
3
RCME pressure-boosting unit
4
Control cabinet with CU 361 control unit
5
Rainwater collecting tank with SPO pump, floating
suction strainer and hydrostatic pressure sensor
3
4
5
2
1
TM
05
27
09
04
12
Pos.
Description
1
Type designation
2
Model
3
Supply voltage [V]
4
Maximum current [A]
5
Maximum pressure [MPa/bar]
6
Country of origin
7
Frequency [Hz]
8
Input power [kW]
9
Enclosure class
10
Rated flow [m
3
/h]
11
Head at rated flow [m]
12
Maximum head [m]
13
Maximum ambient temperature [°C]
14
Maximum liquid temperature [°C]
Example
R
CME
05
03
Rainwater
Pump type
CME: Centrifugal Modular booster pump with
integrated frequency converter
Rated flow rate
Rated flow rate at 50 Hz [m
3
/h]
Number of phases of the electrical supply
98145234
Type
Model
f
Hz
7
P1
W
m /h
m
m
3
8
TAmb max
°C
°C
13
Tliq, max
14
Ip
9
Qnom
10
Hnom
11
Hmax
12
2
1
U
V
A
MPa/bar
I
3
4
5
6
max
p
max
