Emerson Vilter VSS Serie Manual De Instalación, Operación Y Mantenimiento página 170

ICM/ICAD Motorized Valve
Installation (continued)
© Danfoss (AC-SMC/MWA), 11-2011
Installation, Programming, and Troubleshooting
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:
Valve Body
ICM 20
ICM 25
ICM 32
ICM 40
ICM 50
ICM 65
ICM 100 through 150
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).
DKRCI.EI.HT0.B2.22 / 520H4763
Nm ft lbs
40 29
100 74
120 88
120 88
140 103
150 110
220 162
6