User Manual Q&AAnswer
Feb 25, 2025 - 08:53 PM
To install the Danfoss ICM 100 to 150 Motor Operated Valve, follow these steps:
1. Ensure that the valve is suitable for the refrigerants you are using. It is applicable to HCFC, non-flammable HFC, R717 (Ammonia), and R744 (CO2). Flammable hydrocarbons are not recommended. The valve is designed for use in closed circuits.
2. The valve should be installed in horizontal pipelines with the actuator pointing upwards.
3. The top cover of the valve can be rotated in any direction without affecting the valve's function. The motor can be mounted in any position before locking it with the 3 Allen screws.
4. The valve must be installed with the arrow indicating the direction of flow.
5. Take precautions to prevent refrigerant from escaping and dirt from entering during installation.
6. Ensure that the piping system is designed to avoid liquid traps and reduce the risk of hydraulic pressure caused by thermal expansion.
7. Protect the valve from pressure transients like "liquid hammer" in the system.
8. Do not mount the valve in systems where the outlet side of the valve is open to the atmosphere. The outlet side must always be connected to the system or properly capped off.
9. If welding is required, ensure that the welding method is controlled and does not produce debris. Only materials and welding methods compatible with the valve body material should be used. Clean the valve internally to remove welding debris after welding. Open flame welding is not allowed.
10. Manual operation of the valve is possible using a multi-function tool if the actuator has been removed. The multi-function tool allows for manual rotation of the spindle.
11. Insulation of the valve and actuator is only necessary if energy considerations require it. No insulation is necessary for the function of the valve within temperature limits.
12. The valve is zinc-chromated from the factory. If further corrosion protection is required, the valve can be painted. Protect the magnet coupling during painting.
13. Precise identification of the valve is made via the ID plate on the top cover. Protect the ID plate when repainting the valve.
14. Before assembly, remove welding debris and dirt from pipes and valve body. Apply a small amount of refrigerant oil on both O-rings of the insert for ease of installation. Use the magnetic tool when mounting the top cover.
15. Tighten the top cover/function module with a torque wrench according to the values indicated in the manual.
16. For maintenance, a precise service schedule cannot be given as it depends on operating conditions. Inspect the spindle and cast iron nut against wear once a year. The valve is easy to dismantle, and spare part kits are available for servicing. Do not open the valve while it is still under pressure.
17. When dismantling the valve, remove the top cover after removing the bolts. Use screwdrivers to release the function module and its O-rings from the valve body.
18. To service or replace the function module, unscrew the spindle and bearing house from the piston assembly. Replace worn parts according to the spare part kits and reassemble the valve. Oil the new O-rings on the insert with a small amount of refrigerant oil during reassembly.
19. Use only original Danfoss parts, including O-rings and gaskets, for replacement.
Please refer to the Danfoss ICM 100 to 150 Motor Operated Valve Installation Guide for more detailed instructions and illustrations.
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