REMKO 4-Way Switching Valve User Manual

REMKO

4-WAY SWITCHING VALVE

Installation · Operation · Technology

Edition GB - W04

Contents

Safety instructions

4

Environmental protection and recycling

Warranty

Description

Operation

Installation

Electrical connection

Electrical connection diagram

Technical data

Spare parts list

4

5

5

6

7-9

9

10

11

11

Made by REMKO

Read this installation manual carefully before
commissioning / using these units!

This manual is an integral part of the unit and must
always be kept in the vicinity of the installation location
or on the unit itself.
This operating manual is a translation of the German origi­nal.

Subject to modifications; no liability accepted for errors
or misprints!

REMKO FOUR-WAY SWITCHING VALVE

Safety instructions

Carefully read the operating manual be­fore placing the unit in service for the first
time. It contains useful tips and notes
such as hazard warnings to prevent
injury and material damage. Failure to
follow the directions in this manual can
result in endangerment to persons, the
environment and the equipment itself
and will void any claims for liability.

■ Keep this manual in the vicinity of the

units.

■ The units and components should be

set up and installed only by qualified
personnel.

■ The set-up, connection, and opera-

tion of the unit and its components
must be in accordance with the
operating conditions stipulated in this
manual and comply with all applicable
local regulations.

■ Modification of units and components

supplied by REMKO is not permitted
and can cause malfunctions.

■ Units and components may not be

operated in areas where there is an
increased risk of damage. Observe
the minimum clearances.

■ The electrical supply is to be adapted

to the requirements of the units.

■ The operational safety of units and

components is only assured if they are
fully assembled and used as intended.
Safety devices may not be modified
or bypassed.

■ Do not operate units or components

with obvious defects or signs of dam­age.

■ The units and components must be

kept at a safe distance from inflam­mable, explosive, combustible,
aggressive and dirty areas or atmos­pheres.

■ Installation, repair and maintenance

work may be carried out only by au­thorised specialists. Visual inspections
and cleaning can be performed by the
operator as long as power is discon­nected from the equipment.

■ To preclude any danger from the unit,

take appropriate hazard-prevention
measures when performing installa­tion, repair or maintenance work or
cleaning the units.

Environmental pro­tection and recycling

Disposing of packaging

All products are packed for transport
in environmentally friendly materials.
You can make a valuable contribution
to reducing waste and sustaining raw
materials by only disposing of packaging
at approved collection points.

Disposal of
components

The manufacturing process for the units
is subject to continuous quality control.
Only high-grade materials are processed,
the majority of which
are recyclable. You can also
contribute to environmental protection by
only disposing of components in accord-

ance with local regulations and in
an environmentally safe manner,

e.g. through authorised disposal
and recycling specialists or at collection
points.

4

Warranty

The warranty conditions are listed in the
"General terms and conditions".
Please contact your contractual partner
in the first instance.

gate valve allows the medium to be re­directed in a way which is not depend­ent on the differential pressure.
This gate valve is controlled by an ac­tuator.
The gate valve can also be operated
manually via a lever located on the plas-

Description

tic housing.

This makes it possible to also operate
The four-way switching valve serves to
incorporate a boiler into systems (the

the four-way switching valve by hand,

without the electric motor.
hydraulic diagram pictured below is an
example).
It is comprised of an electrical actuator

The housing consists of corrosion-resist-

ant gunmetal (bronze).
and a hydraulic lower section.

The connections have a 5/4" inside
Due to its shape, the installed cylindrical

thread on both the inlet and outlet

sides.

Hydraulic diagram as an example of the installation of a four-way switching valve

Outdoor unit

F9

Indoor unit
CMF

A9

II
0
I

V

V

F17

Gas/oil boiler

F11

A8

Heating/cooling water

storage tank

A8

M

KPS 300

F8

Heating
circuit 1

A1

Heating
circuit 2

F5

A2

M

Cooling circuit

A10

A4/A5

Tmax

B

A3

A6

AB

A

F6

Domestic water

storage tank

HPS 500

Fresh water

station

Taps

A12

l/h

CW inlet

5

REMKO FOUR-WAY SWITCHING VALVE

Operation

Mode of operation

All the moving parts and all valve gaskets
are incorporated into a cartridge.
The outer surface of the piston has O­rings which guarantee that the paths are
hermetically sealed.

If the valve rod is moved to position I, the
flow passes through the openings of the
cylindrical gate valve, taking the route
"A" and "B" and "C" and "D".
If, on the other hand, the valve rod is in
position II (outlet position), then the flow
takes route "A" and "D" and "B" and
"C".

Valve position

Valve position I
(only heat pump in operation):
Switch position: A<->B and C<->D

The switching process and the running
time for 90° is 60 seconds. The valve can
be adjusted manually using the supplied
rotary knob.
Manual actuation of the valve is useful
whenever the line system is being refilled,
drained or bled, but also if the electric
motor is no longer functional (e.g. due to
power failure).
When the four-way switching valve is
reconnected to the power supply after a
power cut, the actuator and the valve re­turn automatically to the normal position.

Valve position II
(bivalent mode):
Switch position: A<->D and B<->C

B

B

A

A

C

C

D

D

6

Installation

NOTE

Installation may only be performed
by authorised specialists.

NOTE

Do not use any boiler accessories,
soldering material or wet materi­als of a mineral oil basis, or which
contain mineral oil, hydrocarbon or
ethylene glycol acetate.
If diluted with at least 50% water,
diethylene glycol, ethylene glycol
and propylene glycol can be used
(anti-freeze agent).

Installation

The unit can be installed basically inde­pendent of position. However, wherever
possible, the actuator should not be
installed upside down.

Orientation for installation

The four-way switching valve is com­prised of an electrical actuator and a
hydraulic lower section.

Hydraulic
lower section

Rotary knob for
manual operation

■ Install the hydraulic lower section in

the heat distribution system in ac­cordance with the hydraulic diagram.
Use the appropriate transitions for the
connection threads with 5/4" internal
thread and suitable sealing material.

■ In order to bleed and carry out a

function check on the system, we
first recommend operating the system
manually.

7

REMKO FOUR-WAY SWITCHING VALVE

After installation is complete and the
subsequent leak test has been per­formed, the actuator must be attached
to the lower section.

CAUTION

!

All connections must be made with
the unit in a de-energised state
(electrical system).

■ To do this, remove the rotary knob

used for manual operation.

1

■ Then insert the supplied plastic

coupling piece on to the axle of the
hydraulic lower section.

■ Attach the first of the two supplied

indicators for the direction of rotation
on the front of the actuator above the
rotary knob.
To do this, remove the rotary knob of
the actuator.

3

Indicator for
direction of rotation
(x2)

First
indicator

Rotary knob

■ Attach the second indicator to the

back of the actuator.

4 2

Plastic

coupling piece

Second indicator

8

Electrical connection

■ Then screw the actuator on to the

hydraulic lower section.

5

CAUTION

!

Perform the function check by oper­ating the unit manually, before com­pleting the electrical connection! (To
do this, proceed as described further
down!)

Manual mode

For maintenance and/or servicing work
when the actuator has already been
fitted, the four-way switching valve can
be operated manually for inspection
purposes.

■ To do so, simply pull out the rotary

knob until it comes detached.
The four-way switching valve can
then be moved into any position by
hand.

CAUTION

!

All electrical installation work is to
be performed by specialist compa­nies. Disconnect the power supply
when connecting the electrical ter­minals.

M

N

bu

NOTE

The servo motor has one limit
switch each at both of the left and
right stops for shutdown purposes.

CCW
bk

CW
bn

NOTE

Installation may only be performed
by authorised specialists.

9

REMKO FOUR-WAY SWITCHING VALVE

Electrical connection diagram CMF/CMT 120/160

On-site

sub-distribution

Relay switch

Observe the technical

requirements of the lo-

cal power company

four-way switching valve

*) There is an option for the boiler enabling to occur without voltage or

with 230 V (phase-bridged from X2.19)

with which a normally-closed switch or a normally-open switch can be employed.

**) Only in a set-up without hot water meters

***) Only in a set-up with hot water meters

Connection layout CMF/CMT 120/160

enable

Connection of the

2. heat source *)

(4-way) switch­ing valve

2. heat source

3-way mixer HK2

Flow monitor **)

or

jumper ***)

Circulation pump
HK 1

Circulation pump
HK 2
Mixer circuit

Switching valve
Hot-water usage

Switching valve,
cooling

Circulation pump,
cooling

Circulation pump,

solar or circulation or
Solid-fuel combustion vessel

Charging pump,
indoor module

F 17 Return, heat pump

F 15 Flow rate transmitter

F 14 Solar collector
F 13

Solid-fuel combustion vessel
F 12 Reference sensor, lower
buffer storage
F 11 Inlet, heat pump

F 9 Outdoor temperature
F 8 T-collector (com. inlet)
F 6 Warm-water storage

F 5 Inlet HK2 (mixing circuit

Analogue remote control with
room sensor

Outdoor-module supply
CMF/CMT 120: e.g.:NYM 3x4mm

CMF/CMT 160: e.g.:NYM 5x2.5mm
Outdoor-module supply

e.g.:NYM 3x1.5mm

E-heater supply
e.g.:NYM 5x2.5mm

Power enable/disable (230 V~)
e.g.:NYM 3x1.5mm

M

-

br

blu

2

2

2

Normally-closed switch

Normally-open switch

blk

br

blu

blu

CMF/CMT 120

L1
N

2

2

S1
S2
S3

X1.1
X1.2
X1.3
X1.4

X1.5

X1.6

X1.7
X1.8

X1.9

X2.1
X2.2
X2.3

X2.4
X2.5
X2.6

X2.7
X2.8-N
X2.9

X2.10
X2.11-N
X2.12

X2.13
X2.14
X2.15

X2.16
X2.17
X2.18

X2.19-L1.1
X2.20-L1.1
X2.21-L1.1

X2.22
X2.23-N

X2.24

X2.25
X2.26-N

X2.27

X2.28
X2.29-N

blk

white

X2.30

X2.31
X2.32-N

X2.33

X2.34
X2.35-N

X2.36

X2.37
X2.38-N

X2.39

X2.40
X2.41-N

X2.42

X3
X3.1
X3.2
X3.3
X3.4

X3.5
X3.6
X3.7
X3.8
X3.9
X3.10
X3.11
X3.12
X3.13

X3.14
X3.15
X3.16
X3.17
X3.18
X3.19

Outdoor unit

CMF/CMT 160

L1
L2
L3
N

S1
S2
S3

Indoor unit

Terminal block X1

Inputs/outputs

(Merlin I/O circuit board)

Terminal block X2

A4/A5

E1

A1

A2 A3 A10 A10 A12 A9

Terminal block X3

F17

(F15)

F14
F13
F12
F11
F9
F8
F6
F5
F3
F2

(F1)

10

Technical data

Unit type

Cvs value (pressure loss 1 bar) m3/h 8

Nominal pressure bar 10

Max. differential pressure kPa 400

Running time 90° s 60

Medium connectors Inches 5/4" internal thread

Electrical connection V 220-240/1~N

Protection class IP41

Frequency Hz 50-60

Max. torque Nm 6

Power consumption W 4

Apparent output VA 5

Current capacity of the auxiliary contacts A/V 3/250

Connection line length mm 1000

Permissible ambient temperatures °C -10 - +65

Min./max. heating water temperatures °C 1-95

Nominal diameter DN 32

EDP no. 260071

We reserve the right to modify the dimensions and constructional design as part of the ongoing techni­cal development process.

Four-way switching

valve

Spare parts list

No. Description EDP no.

1 Actuator for four-way switching valve 1120181

2 Hydraulic lower section, 5/4" 1120182

11

REMKO INTERNATIONAL

...and right in your own location too!
Benefit from our experience and advice

REMKO GmbH & Co. KG
Air conditioning and heating technology

Im Seelenkamp 12 D-32791 Lage
Postfach 1827 D-32777 Lage
Telephone [phone]
Fax [phone]
e-mail [e-mail]
Website www.remko.de

We reserve the right to make technical changes, and provide no warranty as to the accuracy of this data!