Quick Start Guide | ICM/ICAD Motorized Valves - Installation, Programming, and Troubleshooting
© Danfoss | DCS (MWA) | 2016.07
DKRCI.EI.HT0.B3.22 | 520H4763 | 6
Care should be taken to protect the ICM function module when it is removed and stored during
installation of valve body.
3. Weld the valve body in line making sure that the arrow on the valve body is pointing in the direction
of flow.
- For ICM 20 through 65, make sure that all debris is removed from valve body before bonnet/
function module is re-installed.
- For the ICM 20, make sure that the removable orifice seat is re-installed in the valve body with the
small o-ring between the orifice seat and the body. Use a 13mm socket to tighten the ICM20-A33 or
ICM20-A valve seat to a torque of 6.5 ft-lbs (9 N-m). Use a 12 mm hex key to tighten the ICM 20-B66,
ICM20-B or ICM20-C valve seat to a torque of 1.5 ft-lbs (2 Nm).
DO NOT OVERTIGHTEN THE REMOVABLE SEAT.
Make sure that the bonnet gasket is installed and in good condition.
- For the ICM 25 through ICM 65, check that the two o-rings are installed on the function module and
that the gasket located on the top of the valve body is installed and all are in good condition.
A light coating of refrigerant oil on the bonnet o-rings and the cover gasket will facilitate assembly
of the valve.
4. Install the bolts and torque to the following specifications:
5. Install the ICAD Motor on the ICM valve:
The ICM valve must not be in its full opened position while the ICAD motor is calibrated with the valve
(at a later step). Therefore, if the opening degree of the ICM valve was changed from the factory
setting, it should be set to an opening degree between 0% and 75% using the manual magnet tool.
To easily ensure correct positioning, turn the manual tool counter-clockwise until it is clear that it
cannot be turned any further.
- Make sure that the ICM adapter/valve stem and inner ICAD magnets are completely dry and free
from any debris.
- For applications below freezing, the ICM adapter O-ring (position 2c in the diagram on page 5)
must be removed and Molycote G 4500 grease (supplied with ICAD motor) needs to be applied in
the O-ring groove on the adapter and on the O-ring before it is re-installed on the ICM adapter.
The Molycote grease ensures a good seal between the ICAD motor and the ICM adapter to prevent
moisture from entering the ICAD magnets.
- Place the ICAD motor on the valve stem.
- Push the ICAD motor completely down to the identification ring on the valve stem. Using a 2.5 mm
hex key, tighten the set screws evenly so the ICAD motor is centered on the ICM valve stem.
Torque the set screws to approximately 3 Nm (2.5 ft-lbs).
Installation (continued)
Valve Body
Nm
ft lbs
ICM 20
40
29
ICM 25
100
74
ICM 32
120
88
ICM 40
120
88
ICM 50
140
103
ICM 65
150
110
ICM 100 through 150
220
162
