High-efficiency Circulator Pump

Rio-Eco N / Rio-Eco Z N

Type Series Booklet

Legal information/Copyright

Type Series Booklet Rio-Eco N / Rio-Eco Z N

All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,edited or processed for any other purpose, nor otherwise transmitted, published or made available toa third party without the manufacturer's express written consent.

Subject to technical modification without prior notice.

© KSB Aktiengesellschaft, Frankenthal 14.09.2016

Contents

Building Services: Heating .................................................................................................................................4

Variable-Speed Circulator Pumps .................................................................................................................................. 4

Rio-Eco N / Rio-Eco Z N .............................................................................................................................................. 4

Main applications ................................................................................................................................................ 4

Fluids handled ...................................................................................................................................................... 4

Operating data .................................................................................................................................................... 4

Designation .......................................................................................................................................................... 4

Design details ....................................................................................................................................................... 4

Materials .............................................................................................................................................................. 5

Product benefits ................................................................................................................................................. 5

Certifications ........................................................................................................................................................ 5

FluidFuture energy efficiency concept developed by KSB ................................................................................ 5

Selection information .......................................................................................................................................... 6

Programme overview / selection tables ............................................................................................................. 8

Technical data ...................................................................................................................................................... 8

Characteristic curves ............................................................................................................................................ 9

Dimensions ......................................................................................................................................................... 10

Flange design ..................................................................................................................................................... 11

Installation information .................................................................................................................................... 11

Scope of supply .................................................................................................................................................. 11

Accessories ......................................................................................................................................................... 12

Contents

3

Building Services: Heating

Variable-Speed Circulator Pumps

Rio-Eco N / Rio-Eco Z N

Main applications

Heating, ventilation, air-conditioning, cooling and circulationsystems

▪ One-pipe and two-pipe systems

▪ Underfloor heating systems

▪ Boiler or primary circuits

▪ Storage tank circuits

▪ Solar power systems

▪ Heat pumps

Fluids handled

▪ Heating water to VDI 2035Higher-viscosity fluids (e.g. water/glycol mixture up tomixing ratio of 1:1)

▪ Pure, thin, non-aggressive and non-explosive fluids notcontaining any mineral oil, solids or long fibres

▪ Fluids with a viscosity of max. 10 mm2/s

Operating data

Operating properties

Characteristic ValueFlow rate Q [m3/h] Rio-Eco N

≤ 65Rio-Eco Z N≤ 55

Q [l/s] Rio-Eco N≤ 18Rio-Eco Z N≤ 15,3

Head H [m] ≤ 12Fluidtemperature

T [°C] -10 to +110

Ambienttemperature

T [°C] ≤ 40

Characteristic ValueOperatingpressure

p [bar] ≤ 10

Sound pressurelevel

[dB (A)] Rio-Eco N< 50

Connection Flange: DN 80

Designation

Example: Rio-Eco Z N 80-120

Designation key

Code DescriptionRio Type seriesEco High-efficiency pumpZ Twin pumpN Single pump80 Nominal diameter of pipe connection

80 = DN 80120 Head in m x 10 (example: 120 = 12 m)

Design details

Design

▪ Highly efficient, maintenance-free wet rotor pump(glandless)

▪ Flange connection

▪ Continuously variable differential pressure control

Operating modes

▪ Automatic mode with variable differential pressure

▪ Open-loop control mode with external 0 - 10 V setpointsignal for speed

▪ Open-loop control mode with manual setpoint input

Automatic functions

▪ Continuous output adjustment depending on theoperating mode

▪ Deblocking function

▪ Soft start (slow start)

▪ Full motor protection

Manual functions

▪ Setting the operating mode

▪ Setting the differential pressure setpoint

▪ Setting the speed level

External control functions

▪ Control input "start/stop"

▪ Control input for remote speed adjustment 0-10 V

Signalling and display functions

▪ General fault indication (volt-free changeover contact)

▪ Fault indication, display of error codes

Interfaces

▪ Serial digital Modbus RTU interface for connecting higher-level automation systems via the RS485 system bus

Twin pump management

▪ Duty/stand-by mode with timer-controlled pumpchangeover every 24 hours and automatic changeover inthe event of a fault

Building Services: HeatingVariable-Speed Circulator Pumps

4 Rio-Eco N / Rio-Eco Z N

Drive

▪ High-efficiency electric motor with continuously variabledifferential pressure control

▪ Integrated motor protection

▪ 230 V - 50 Hz

▪ IP42 enclosure

▪ Thermal class F

▪ Temperature class TF 110

▪ Variable speed electric drives to EN 61800-3 EMCrequirements

▪ Interference emission standard EN 55014-1 orEN 61000-6-3

▪ Interference immunity standard EN 55014-2 orEN 61000-6-2

Bearings

▪ Product-lubricated special plain bearing

Materials

Overview of available materials

Component MaterialVolute casing Grey cast iron (EN-GJL-200)Shaft Stainless steel 1.4034Impeller Grey cast iron (EN-GJL-150)Bearings Ceramics/carbon (metal-

impregnated)Can Stainless steel 1.4301

Product benefits

▪ Maximum savings of operating costs by high-efficiencymotor combined with speed control

▪ "All-in" concept saves costs

▪ Design principle ensures long service life and high level ofcomfort

▪ Universal use reduces storage costs

▪ High operating availability due to dual pump operation

Certifications

Overview

Label Effective in: CommentEurope EEI ≤ 0.23

Germany All sizes

FluidFuture energy efficiency concept developed by KSB

http://www.ksb.com/fluidfuture

Building Services: HeatingVariable-Speed Circulator Pumps

Rio-Eco N / Rio-Eco Z N 5

Selection information

Minimum pressure

The minimum pressure pmin at the pump suction nozzle servesto avoid cavitation noises at an ambient temperature of +40 °Cand the indicated fluid temperature Tmax.

The indicated values are applicable up to 300 m above sealevel. For installation at altitudes > 300 m, an allowance of0.01 bar / 100 m must be added.

Minimum pressure pmin [bar] specified for the fluid temperature [°C]

Size Fluid temperature Minimum pressure

[°C] [bar]80-120 Up to 80 0,8

81 to 95 1,5

Fluid temperature [°C] specified for the ambient temperature [°C]

Size Fluid temperature Ambient temperature

[°C] [°C]80-120 90 30

70 40

Building Services: HeatingVariable-Speed Circulator Pumps

6 Rio-Eco N / Rio-Eco Z N

Description of the characteristic curve

0

0,5

1,0

1,5

2,0

2,5

3,0

3,5

4,0

0

5

10

15

20

25

P1 [W]

H [m]

30

Q [m3/h]10 0,5 1,5 2,5 32

Q [m3/h]10 0,5 1,5 2,5 32

A

a)b)

c)

1

3

1

.4

43

2

a)

2 b)

c)

Selection example

The characteristic curve can be continuously adjustedbetween a) and c) by turning the control knob.

1 Level 1 = open-loop control n = constant2 Level 2 = open-loop control n = constant3 Level 3 = open-loop control n = constant4 Level 4 = open-loop control n ≠ constantA Point of maximum pump power output (Q x H = Pmax.)

Control rangea) Control curve, maximum headb) Characteristic curve for maximum pump power output

(factory setting)c) Control curve, minimum head

Description of the Modbus interface

Description see operating manual of the pump.

Building Services: HeatingVariable-Speed Circulator Pumps

Rio-Eco N / Rio-Eco Z N 7

Programme overview / selection tables

Features and functions

Features and functions

FunctionsOperating modesΔp-v for variable differential pressureFixed speed operationManual functionsSetting the operating modeSetting the differential pressure setpointSetting the speed level (open-loop control)Vent plugAutomatic functionsContinuous output adjustment depending on the operating mode (Δp control)Deblocking functionSlow startExternal control functionsIntegrated control input for remote setting of speed 0 - 10 V Integrated "start/stop" control inputSignalling functions and display functionsDisplay of error codesGeneral fault message (volt-free NC contact)Fault indicator lampData exchangeIntegrated serial digital Modbus RTU interface for connection to a building management system via RS485 bus systemDual-pump managementDuty/stand-by mode (automatic changeover in the event of a fault, timer-controlled pump changeover)Features / scope of supplySealing elements for connection (not fitted)Installation/operating manual

Technical data

Rio-Eco N selection table

Size DN PN P1

Sig

nal

ling

co

nta

cts Nominal current Mat. No. [kg]

[W] 1~230 V [A]

80-120 DN 80 6 150 - 1400 SSM 1,3 - 9,0 29134172 38.580-120 DN 80 10 150 - 1400 SSM 1,3 - 9,0 29134173 38.5

Rio-Eco Z N selection table

Size DN PN P1

Sig

nal

ling

co

nta

cts Nominal current Mat. No. [kg]

[W] 1~230 V [A]

80-120 DN 80 6 160 - 1350 SSM 1,35 - 9,40 29134716 87.480-120 DN 80 10 160 - 1350 SSM 1,35 - 9,40 29134182 70

SSM = General fault message

Building Services: HeatingVariable-Speed Circulator Pumps

8 Rio-Eco N / Rio-Eco Z N

Characteristic curves

Rio-Eco N 80-120

H [m]

P1 [W]

Q [m3/h]

0

2

4

6

8

10

12

0 10 20 30 40 50 60 70

0

200

400

600

800

1.000

1.200

1.400

1.600

0 10 20 30 40 50 60 70Q [m3/h]

1~230 VACDN 80

Rio-Eco Z N 80-120

0

2

4

6

8

10

12

0 5 10 15 20 25 30 35 40 45 50 55 60

0

200

400

600

800

1.000

1.200

1.400

1.600

0 5 10 15 20 25 30 35 40 45 50 55 60

1~230 VACDN 80

Q [m3/h]

Q [m3/h]

P1 [W]

H [m]

Building Services: HeatingVariable-Speed Circulator Pumps

Rio-Eco N / Rio-Eco Z N 9

Dimensions

Pump dimensions

a b c d

e

H

Flanged pump

Rio-Eco N dimensions [mm]

Size DN a b c d e H80-120 80 240 100 105 170 170 360

Twin pump dimensions

a

b

c

f g

e

d

h

Flanged pumps

Rio-Eco Z N dimensions [mm]

Size DN a b c d e f g h80-120 80 513 275 245 360 160 205 240 175

Building Services: HeatingVariable-Speed Circulator Pumps

10 Rio-Eco N / Rio-Eco Z N

Flange design

n x Ø d

Ø D Ø k

DN Ø d

L

Flange

Dimensions [mm]

Flange ØD Ød PN 6 PN 10 PN 6 PN 10

Øk Øk n × d2 n × d2DN 80 200 132 150 - 4 × Ø14 -DN 80 200 132 - 160 - 8 × Ø19

Installation information

Permissible installation positions

Sizes Rio-Eco N

Rio-Eco Z N

Scope of supply

▪ Pump

▪ Installation/operating manual

Building Services: HeatingVariable-Speed Circulator Pumps

Rio-Eco N / Rio-Eco Z N 11

Accessories

Electrical accessories

Description Cable length Mat. No. [kg]

[m]BACnet IP communication module

Suitable for mounting in a control cabinet, with 100 data points forconnecting several Rio-Eco N/Rio-Eco Z N pumps

01550857 0.995

Modbus data cable

Pre-configured plug for Rio-Eco N

5 19075536 0.2

Data cable

For connecting two single Rio-Eco N pumps for dual pump operation,pre-configured with plug1)

1 19075537 0.1

Communication module

Suitable for wall mounting, for connecting up to 6 Rio-Eco N/Rio-Eco Z N pumps, for signalling an "in operation" or alarm message(general fault message)

01550860 1

Cold water insulation

Description For size Mat. No. [kg]Diffusion-tight insulation for cooling applications for Rio-Eco N pumps 80-120 PN 6/10 19075545 0.1

Spacers

Description Matingflange

PN Length Mat. No. [kg]

Spacer F8 DN 80 6/10 10 mm 19075574 2Spacer F9 DN 80 6/10 15 mm 19075575 2Spacer F10 DN 80 6/10 20 mm 19075576 2Spacer F11 DN 80 6/10 25 mm 19075577 2Spacer F12 DN 80 6/10 30 mm 19075578 2Spacer F13 DN 80 6/10 40 mm 19075579 2Spacer F14 DN 80 6/10 40 mm 19075580 2Spacer F15 DN 80 6/10 80 mm 19075581 2

1) Included in the scope of supply of Rio-Eco Z N

Building Services: HeatingVariable-Speed Circulator Pumps

12 Rio-Eco N / Rio-Eco Z N

1140

.51/

03-E

N14

.09.

2016

KSB Aktiengesellschaft67225 Frankenthal • Johann-Klein-Str. 9 • 67227 Frankenthal (Germany)Tel. +49 6233 86-0 • Fax +49 6233 86-3401www.ksb.com