Serviceparts
This Parts List effective with Valve Serial No. C641. * All 4 must be replaced, do not use old ones with new. When communicating with Ing Westad AS regarding operation of a control, always give the Model No. and Serial No. If ordering service parts, also include the Description, Part No., and quantity desired. If any parts are ordered by Reference No. only, please also include the Form No. and Revision No.
DN200 D replacement
Model D is a 3-way TCV with flanges and manual override which is obsolete.Ing Westad AS can support the process of obtaining spare parts for service and maintenance or replacement valves which can be 8BR TCV or 08GG ACV.
The TCV is a direct-acting, internal-sensing, self-actuated 2- or 3-way temperature control valve. The regulation takes place automatically as a result of the temperature of the liquid flowing through the valve.
Maintenance
Properly applied and installed, AMOT Thermostatic Valves require minimal maintenance. An inspection at 3 year intervals is adequate to detect and make provision for normal wear. A feature of Mode D Valves is that the element assembly may be removed from the valve for inspection or maintenance without removing the valve from the connecting piping.
Remove Cover (20) and the sliding valve assembly by removing ten Capscrews (38). Eye Bolts (42) can be used as jack screws to break the seal. Sliding Valve (48) should be in the position shown on the assembly drawing with Port C in the fully closed position. If not, break Wire Seal (32), remove Cap (33), loosen Nut (34) and with a wrench turn the flat end of Pushrod (50) clockwise moving Sliding Valve (48) to the closed position. Remove Ring (23) and Plug (57) from Element Tube (55). Temperature Elements (56) and Guide (54) are then removed from the Element Tube. On reassembling, use reverse procedure, making sure that Temperature Elements and the Guide are correctly inserted into the Element Tube. New Temperature Elements are factory calibrated for exact replacement without setting on the job.
