Motor operated valve, type ICMTS
with actuator, type ICAD 600A-TS
The ICMTS is a direct operated motorised valve
driven by actuator type ICAD 600A-TS. The
ICMTS is designed to regulate the ow of
transcritical gas or subcritical liquid from the
gascooler in transcritical CO2 systems. The
ICMTS can also be used for other control
functions in CO2 systems. The ICMTS valve is
designed so that the opening and closing
forces are balanced.
ICAD 600A-TS actuators can be controlled using
the following signals:
• 0 – 20 mA
• 4 – 20 mA (default)
• 0 – 10 V
• 2 – 10 V
ICAD 600A-TS actuators can also operate an
ICMTS valve as an On/O function supported
by a digital input.
The ICMTS valve can be operated manually via
the ICAD 600A-TS actuator or via the Multifunction tool for ICMTS (see the Ordering).
The actuator type 600A-TS is designed
specically for ICMTS valves. The actuator type
900 can be used for ICMTS as well, however it
consumes more energy than ICAD 600A-TS for
similar applications.
The ICAD 600A-TS is controlled via a
modulating analogue signal (e.g. 4 – 20 mA / 2
– 10 V) or a digital ON/OFF signal. ICAD 600A-TS
incorporates an advanced MMI (Man Machine
Interface), including continuous display of
Opening Degree, which gives the user a very
advanced and exible setup procedure that can
meet many dierent applications. The ICMTS
valve is typically controlled by the Danfoss EKC
326A controller.
AI217586428573en-001101
Motor operated valve, type ICMTS with actuator, type ICAD 600A-TS
Features
Valves
• Designed for high pressure CO2 systems with applications for a maximum working pressure of 140 bar / 2030 psig.
• Applicable to R744 (CO2)
• Direct coupled connections
• Connection types are DIN butt weld
• Non-alloyed quality steel
• Low weight and compact design
• Regulating cone ensures optimum regulating accuracy, particularly at part load
• Manual opening possible via ICAD 600A-TS or Multi-function tool
• The PTFE seat provides excellent valve tightness
• Magnet coupling - real hermetic sealing
• ICAD 600A-TS include encoder function that will provide a true valve position feedback to Danfoss controller or
non-Danfoss control systems.
Actuator
• Specically designed for ICMTS valve
• Advanced and high speed Digital Stepper Motor Technology
• Seven segment LCD display including three programming keys
• Valve opening degree can be observed continuously
• Can easily be congured to dierent applications on-site. (change speed, ON/OFF, modulating valve)
• Open – Close time: 3 seconds
• Modulating or ON/OFF operation
• Multiple speed selection during operation
• Logging of old alarms
• Password protection
• Control input signal: 4 – 20 mA, 0 – 20 mA, 0 – 10 V, 2 – 10 V
• Position feed back: 0 – 20 mA, 4 – 20 mA (ICMTS)
• 3 digital ON/OFF feedback
• Resolution: 20 micron/step (0.02 mm stroke pr. step)
• Total steps: 250
• Auto Calibration, Neutral zone
• In the event of a power failure, multiple fail safe options are possible. During power failure, ICAD 600A-TS can be
selected to:
Close ICMTS
Open ICMTS
Stay in the position it was in, prior to power failure. Go to a specic ICMTS valve opening degree.
• Hermetic magnetic motor
• Enclosure: IP 67 (~NEMA 6)
• Approvals: CE, UL, CRN
• Connectors for easy installation and servicing
• Can be controlled by Danfoss EKC 326A controller and integrated into Danfoss ADAP-KOOL® system.
Motor operated valve, type ICMTS with actuator, type ICAD 600A-TS
Function
ICMTS valve
The ICMTS motor valve is designed for use with ICAD 600A-TS.
The driving force from the actuator is transferred via a magnetic coupling (a) through the stainless steel top housing
(b), thus eliminating the need for a packing gland. The rotational movement of the magnetic coupling (a) is
transferred to a spindle (c) which in turn provides the vertical movement of the cone (d) and PTFE valve plate (e), to
open and close the valve. The closing force of the actuator combined with the PTFE valve plate (e) and valve seat (f)
provides an eective seal to prevent leakage across the valve port, when the valve is in the closed position. To
prevent damage to the PTFE valve plate (e) and seat (f) from system debris, it is recommended to install a lter in
the system.
Valve inlet pressure (P1) acting on the underside of the PTFE valve plate (e) also passes through the hollow cone
assembly (d) on to the top of the piston (g) and balances the pressure acting on the piston (g). Any trapped liquid
across the throttle cone (d) is equalised down to the valve outlet without aecting the valve performance.
Figure 1: ICMTS
The actuators have a fully weather protected enclosure with none of the moving parts exposed to the environment.
The fast acting actuators and balanced valve design results in the valve being able to move from the fully closed to
the fully open position in about 3 seconds.
The smallest cones (A33 and A) are log-shaped in order to provide optimum regulation at small capacities and high
pressure dierentials.
The rst version of the ICMTS valve features V-shaped A cones. Please contact your local Danfoss sales
company for further info.
Bigger cones (B and C) are V-shaped in order to provide an optimum regulating curve for higher capacities.
ICAD 600A-TS actuator
The design of ICAD 600A-TS is based on a digital stepper motor technology combined with an advanced MMI (Man
Machine Interface), that gives excellent possibilities for having a high degree of exibility with the same type of
ICAD 600A-TS actuator.
The Opening Degree (0-100 %) of the actual ICMTS valve installed can be continuously observed on the ICAD 600ATS display.
Motor operated valve, type ICMTS with actuator, type ICAD 600A-TS
The advanced menu system will allow several parameters to be adjusted to obtain the required function.
Many dierent parameters can be congurated, among these:
• Modulating and ON/OFF control
• Analogue input
0 – 20 mA or 4 – 20 mA
0 – 10 V or 2 – 10 V
• Analogue output
0 – 20 mA or 4 – 20 mA
• Automatic or manual control
• Change of ICMTS valve speed
• Automatic calibration
• Multiple Fail Safe set-up options during power cut
For service all Input and Output signals can be recalled and observed from the ICAD 600A-TS display.
A password protection has been linked to the parameter of entering the correct ICMTS valve to avoid unintentional
and non-authorised operation.
The design of ICAD 600A-TS is based on a digital stepper motor technology combined with an advanced MMI (Man
Machine Interface), that gives excellent possibilities for having a high degree of exibility with the same type of
ICAD 600A-TS actuator.
The Opening Degree (0-100 %) of the actual ICMTS valve installed can be continuously observed on the ICAD 600ATS display.
The advanced menu system will allow several parameters to be adjusted to obtain the required function.
Many dierent parameters can be congurated, among these:
• Modulating and ON/OFF control
• Analogue input
0 – 20 mA or 4 – 20 mA
0 – 10 V or 2 – 10 V
• Analogue output
0 – 20 mA or 4 – 20 mA
• Automatic or manual control
• Change of ICMTS valve speed
• Automatic calibration
• Multiple Fail Safe set-up options during power cut
Motor operated valve, type ICMTS with actuator, type ICAD 600A-TS
Application
ICMTS valve
Figure 2: Application
The ICMTS valve is developed for transcritical CO2 applications. The ICMTS valve can be used in systems with ash
gas bypass, parallel compression as well as in stand-alone application. The ICMTS valve can be used in transcritical
and subcritical conditions.
The most typical application is with ash gas bypass.
Pressure optimisation is performed by the Danfoss EKC 326A controller and the ICMTS valve which is installed at the
outlet of the gas cooler (see Figure 2: Application). This design provides the possibility to optimise gas cooler
pressure and intermediate receiver pressure independently.
The pressure in the receiver is one important parameter, but the design of the receiver is also important. It typically
acts as a liquid separator as well.
In order to keep the intermediate pressure low, ash gas is expelled through a gas bypass valve to the suction side
of the compressor. The two phase mixture from the ICMTS valve has to be separated before gas enters the gas
bypass.
Please refer to the Danfoss Application guide, DKRCE.PA.R1.A for more information on CO2 systems.
Motor operated valve, type ICMTS with actuator, type ICAD 600A-TS
Media
Refrigerants
Applicable to R744 (CO2). ICMTS valves must not be used with ammable refrigerants. For further information,
please contact your local Danfoss sales company.
New refrigerants
Danfoss products are continually evaluated for use with new refrigerants depending on market requirements.
When a refrigerant is approved for use by Danfoss, it is added to the relevant portfolio, and the R number of the
refrigerant (e.g. R513A) will be added to the technical data of the code number. Therefore, products for specic
refrigerants are best checked at store.danfoss.com/en/, or by contacting your local Danfoss representative.
ICMTS valves are available with DIN butt weld connections.
Design
Valve body and top cover material
Temperature range
Media: –60/+120 °C (–76/+248 °F)
Pressure
Max. working pressure: 140 bar g (2030 psig)
Surface protection
The external surface is treated in order to provide good corrosion protection
Max. opening pressure dierential (MOPD)ICMTS: 90 bar (1305 psi)
The time it takes to move from Closed to Open position or in reverse order with maximum selected speed at ICAD 600A-TS
is 3 seconds.
Features
Specications
Materials
Housing: Aluminium
Top part of ICAD 600A-TS: PBT thermo plastic
Weight
ICAD 600A-TS: 1.2 kg (2.64 lb)
Temperature range (ambient)
–30 °C / +50 °C (–22 °F / 122 °F)
Enclosure
IP 67 (~NEMA 6)
Cable connection
Can be ordered with or without cables included.
If ordered with cables:
2 cables in length of 1.5 m length (60 in.) with M12 connectors included
Supply voltage is galvanic isolated from Input/Output
Supply voltage
Load: 24 V DC, + 10% / -15%
ICAD 600A-TS: 1.2 A
Fail safe supply
Min. 19 V DC, max. 26.4 V DC
Load: ICAD 600A-TS: 1.2 A
Battery capacity
For each open/closed cycle
ICAD 600A-TS:
Speed Parameter i04=100 (max. speed): 2 mAh
Speed Parameter i04=1 (min. speed): 200 mAh
Analogue input
Current: 0/4 – 20 mA
Load: 200 Ω
Voltage: 0/2 – 10 V DC
Load: 10 kΩ
Analogue output
Current: 0/4-20 mA
Load: ≤ 250 Ω
Digital input
Digital ON/OFF input by means of volt-free contact (Signal/Telecom relays with gold-plated contacts recommended) –
Voltage input used
• ON: contact impedance < 50 Ω)
• OFF: contact impedance > 100 kΩ
Digital output
3 pcs. NPN transistor output
External supply: 5 – 24 V DC
(Same supply as for ICAD 600A- TS can be used, but please note that the galvanically isolated system will then be spoiled).
Output load: 50 Ω
Load: Max. 50 mA
Motor operated valve, type ICMTS with actuator, type ICAD 600A-TS
Product specication
Technical data
ICMTS valve
Table 1: Technical data - Valve
ICAD 600A-TS actuator
Table 2: Technical data - Actuator
Table 3: Electrical connections
Cable connection
Cable connection - Two 1.5 m (60 in) cables premounted