Danfoss ICMTS 50-80 Motor Operated Valve Installation Guide
- June 12, 2024
- Danfoss
Table of Contents
ICMTS 50-80 Motor Operated Valve
Product Information
Product Name| Motor operated valve Type ICMTS 50/80 with actuator, type ICAD
600A-TS
---|---
Valve Size| DN 50 (50mm diameter)
DN 80 (80mm diameter)
Maximum Torque| Max. Nm: 133 +/- 5
Max. LB-feet: 84 +/- 5
Maintenance| Refer to maintenance instructions in the user manual.
Refrigerants| The ICMTS 50/80 is specifically designed for high pressure R744
applications. The valve is only recommended for use in closed
circuits. For further information, please contact Danfoss.
Pressure| The valves are designed for a max. working pressure of 140 bar
(2030 psig).
Function| The ICMTS can be used in suction, liquid, hot gas and
liquid/vapour lines. The ICMTS regulates the flow of the medium by
modulation or the on/off function, depending on the control impulse
to the actuator. Refer to the technical leaflet for details on
design and regarding selections. The ICMTS valve is designed for
use with the ICAD 600A-TS actuator from Danfoss.
Actuator| The ICAD 600A-TS actuator on the ICMTS ensures compatibility
with the regulators provided by Danfoss plus a range of other
controllers, especially PLC controllers. A control signal from a
Danfoss controller or PLC will activate the ICAD 600A-TS motor and,
through a magnetic coupling, rotate the spindle in the ICMTS to
change the opening degree of the cone.
Valve Installation| – The motor can be mounted in any position before locking
it
with the 3 Allen screws.
– ICMTS valves must not be mounted in systems where the outlet side
of the valve is open to atmosphere. The outlet side of the valve
must always be connected to the system or properly capped off, such
as the case with a welded-on end plate.
Welding or Brazing| – The top cover, complete with function module, should be
removed before welding or brazing to prevent damage to O-rings and
Teflon (PTFE) in the function module and to avoid getting welding
debris in the module.
– Only materials and welding methods compatible with the valve body
material must be applied.
– The valve should be cleaned internally to remove welding debris
on completion of welding and before the valve is reassembled.
– Avoid welding debris and dirt in the valve body and the function
module. The valve body must be free from stresses (external loads)
after installation.
Manual Operation| A magnetic coupling can be used to rotate the spindle
manually
if the actuator has been removed. To make use of the manual
operation, a multi-function tool (optional) is used. The code
number for the multi-function tool is 027H0181.
Product Usage Instructions
-
Follow the installation guide provided in the user manual for proper installation of the motor operated valve Type ICMTS 50/80 with actuator, type ICAD 600A-TS.
-
Ensure that the valve size matches the requirements of your system:
- DN 50 (50mm diameter)
- DN 80 (80mm diameter)
-
Perform regular maintenance as outlined in the maintenanceinstructions provided in the user manual.
-
For refrigerants, the ICMTS 50/80 is specifically designed for high pressure R744 applications. It is recommended for use in closed circuits only. For further information, please contact Danfoss.
-
The valves are designed to handle a maximum working pressure of 140 bar (2030 psig).
-
The ICMTS valve can be used in suction, liquid, hot gas, and liquid/vapour lines. It regulates the flow of the medium by modulation or on/off function, depending on the control impulse to the actuator. Refer to the technical leaflet for more details on design and selections.
-
The ICAD 600A-TS actuator on the ICMTS ensures compatibility with regulators provided by Danfoss and other controllers, especially PLC controllers. A control signal from a Danfoss controller or PLC activates the ICAD 600A-TS motor, which rotates the spindle in the ICMTS to change the opening degree of the cone.
-
Mount the motor in any position before locking it with the 3 Allen screws. Make sure that the outlet side of the valve isconnected to the system or properly capped off.
-
Follow the welding or brazing instructions carefully when
working with the valve. Remove the top cover with the function module before welding or brazing to prevent damage. Use materials and welding methods compatible with the valve body material. Clean the valve internally after welding and before reassembling. -
Avoid welding debris and dirt in the valve body and function module. Ensure that the valve body is free from external loads after installation.
-
For manual operation, use a magnetic coupling to rotate the spindle if the actuator has been removed. The multi-function tool (027H0181) can be used for manual operation.
Installation
Refrigerants
The ICMTS 50/80 is specifically designed for high pressure R744 applications.
The valve is only recommended for use in closed circuits. For further
information, please contact Danfoss.
- Temperature range
- Allowable TS: -60/+150 °C (-76/+302 °F) Operation: -40/+50 °C (-40/+122 °F)
- Ambient: -30/+50 °C (-22/+122 °F)
In systems with continuous media temperatures above +50 °C (+122 °F) Danfoss recommend to inspect the valve annually and replace the PTFE valve seat if needed.
Pressure
The valves are designed for a max. working pressure of 140 bar (2030 psig).
Function
- ICMTS is a balanced valve which remains in its position. The return function must be provided by use of the actuator.
- The ICMTS can be used in suction, liquid, hot gas and liquid/vapour lines. The ICMTS regulates the flow of the medium by modulation or the on/ off function, depending on the control impulse to the actuator. Refer to the technical leaflet for details on design and regarding selections. The ICMTS valve is designed for use with the ICAD 600A-TS actuator from Danfoss.
- The ICAD 600A-TS actuator on the ICMTS ensures compatibility with the regulators provided
by Danfoss plus a range of other controllers, especially PLC controllers. A control signal from a Danfoss controller or PLC will activate the ICAD 600A-TS motor and, through a magnetic coupling, rotate the spindle in the ICMTS to make the cone change opening degree.
Valve sizes
ICMTS is available in sizes from
- ICMTS 50-A (Kv : 9,0 m3/h)
- ICMTS 80-A (Kv : 18 m3/h)
- ICMTS 80-B (Kv : 27 m3/h)
Installation
-
ICMTS + ICAD 600A-TS can be installed in pipelines with the actuator pointing upwards (fig. 1) or in 45 °C angle to vertical up.
-
The motor can be mounted in any position before locking it with the 3 Allen screws (fig. 6, pos. 2).
-
The ICMTS valve must be installed with the arrow in the direction of flow. When installing an ICMTS, refrigerant must not be allowed to escape, and dirt must not be allowed to enter the valve. The valve is designed to withstand
a high internal pressure. However, the piping system should be designed to avoid liquid traps and reduce the risk of hydraulic pressure caused by thermal expansion. It must be ensured that the valve is protected from pressure transients like “liquid hammer” in the system. -
ICMTS valves must not be mounted in systems where the outlet side of the valve is open to atmosphere. The outlet side of the valve must always be connected to the system or properly capped off, such as the case with a welded-on end plate.
Welding or brazing (fig. 3 & 4)
The top cover, complete with function module, should be removed before welding
or brazing to prevent damage to O-rings and Teflon (PTFE) in the function
module and to avoid getting welding debris in the module. Be careful not to
damage the sealings and sealing surfaces and make sure the complete bonnet is
protected from dirt and water while removed.
The internal surfaces and weld connections of the enclosed ICMTS valve have been applied with an anti-corrosion treatment. To maintain the effectiveness of this anti-corrosion treatment, it is important to ensure that the valve is disassembled just prior to commencing the welding / brazing process. In the event that the function modules are to be left disassembled for any length of time, please ensure that the function modules are further protected by placing in a polyethylene bag or by applying a rust protection agent (e.g. refrigeration oil) on the surfaces.
Only materials and welding methods, compatible with the valve body
material,must be applied. The valve should be cleaned internally to remove
welding debris on completion of welding and before the valve is reassembled.
Avoid welding debris and dirt in the valve body and the function module. The
valve body must be free from stresses (external loads) after installation.
Brazing (fig. 4)
When brazing, Danfoss recommends using Ag40 minimum 450 – 700 °C filler or
better which are suitable for the working pressure, and following procedure
observed (fig. 4):
- Remove top cover/insert
- Clean connections with cleaning agent
- Wrap around wet cloth
- Apply flux on piping ends
- Apply inert gas internal
- Heat up piping
- Braze with recommended brazing material and within temperature range specified
- Remove residual flux
Manual operation
A magnetic coupling can be used to rotate the spindle manually if the actuator
has been removed. To make use of the manual operation, a multi-function tool
(optional) is used (see fig. 7). The code number for the multi-function tool
is 027H0181.
Manual operation is also possible with the actuator mounted on the valve and the power supply connected to the actuator. If the signal connections are wired to the actuator, it is possible to use the manual operation function built into the actuator electronics which allows the motor to step in 1% increments meaning that 100 steps will correspond to a fully open valve. Please refer to the separate instruction manual on ICAD to address the manual function.
Insulation
Insulating the valve and its actuator is only necessary if an energy
consideration in the plant requires this. Regarding the function of the ICMTS
- ICAD 600A-TS, no insulation is necessary when kept inside temperature limits.
Surface treatment and identification
The ICMTS valves are surface treated from factory. If further corrosion
protection is required, the valves can be painted.
Note: Magnet coupling must be protected. Precise identification of the valve is made via the ID plate. After welding, the external surface around the connections of the valve body must be protected to prevent against corrosion with a suitable coating. When repainting the valve, it is recommended to protect the ID plate.
Assembly
Remove welding debris and any dirt from pipes and valve body before
assembly. Use the manual magnetic tool (fig. 7) to achieve rotation through
the top. A small amount of refrigeration oil on both O-rings can make the
insert easier to install into the valve body.
Tightening
Tighten the bonnet with a torque wrench, to the values indicated in the table
(fig. 2). Please note that the table (fig. 2) containing maximum torque must
be adhered to and never exceeded.
ICAD 600-TS configuration To work with ICMTS 50/80 the ICAD parameter i26
Valve configuration shall be set to 3 (ICM 32).
Maintenance
Service
- A precise service schedule cannot be given for the valve as service intervals will depend on operating conditions, i.e. how often the valve operates and the amount of impurities and dirt the system carries.
- The ICMTS valves are easy to dismantle, and all parts inside can be replaced by changing the function module.
- Do not open the valve while the valve is still under pressure.
- Be aware that the valve can be under pressure from both sides and that the manual magnet tool (fig. 7) can be used to open the seat to equalize pressure internally before removing the top cover.
- Before servicing the valve, isolate it from the system. Drain CO₂ liquid e.g. to above 5,2 bar to prevent large formation of dry ice before evacuation to zero pressure. Check for refrigerant pressure before unscrewing and removing the top cover. If the flat gasket (fig. 6, pos. 1) or the O-ring sealing (fig. 6, pos. 3) has been damaged, it must be replaced using the ICMTS inspection kit.
Replacement of the function module
- Remove the old module.
- Oil the O-rings (fig. 6, pos. 3 & 4) on the new module with a small amount of refrigeration oil.
The spindle inside the valve must not be greased or oiled (fig. 5).
Repair of the function module
The ICMTS 50/80 seat PTFE sealing can be replaced using Danfoss repair kit.
- Unscrew the 4 M4 Allen screws (fig. 8)
- Fasten the cylindrical assembly lower part in a vise at the flat surfaces and unscrew the upper part with a wrench at the flat surfaces (fig. 8, pos. 1 & fig. 9)
- Disassemble the assembly into two parts (fig. 10)
- Replace the PTFE sealing with the one from the repair kit (fig. 10, pos. 1)
- Reassemble the 2 parts and tighten the assembly by use of vise and wrench to the torque indicated in fig. 11
- Clean and reassemble the entire insert with the 4 M4 Allen screws tightened to torque
- Nm (3.7 lb-feet) (fig. 12)
- Add refrigeration oil to the new O-ring and replace the O-ring (fig. 12, pos. 1)
- Replace the Flat gasket (fig.6, pos. 1) and assemble the valve to the torque indicated in fig. 2
- The piston is not subject for replacement, but it may be cleaned including the Ø2,5 mm equalization hole.
- The spindle inside the valve must not be greased or oiled (fig. 5).
- In case the piston has been damaged, the entire top module shall be replaced.
- Charge CO₂ gas to above 5,2 bar to prevent large formation of dry ice when charging with CO₂ liquid or equalizing with system pressure.
- Use only original Danfoss parts, including
- O-rings and gaskets for replacement. Materials of new parts are certified for the relevant refrigerant.
- In cases of doubt, please contact Danfoss. Drawings are only for illustration, not for dimensioning or construction. Danfoss accepts no responsibility for errors and omissions. Danfoss Industrial Refrigeration reserves
the right to make changes to products and specifications without prior notice.
Danfoss A/S
Climate Solutions
- danfoss.com
- +45 7488 2222
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