Siemens HVAC products RWD68U Free Express Shipping

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Siemens HVAC products RWD68U

Universal Controller RWD68 For comfort control in HVAC & R-Systems 
• Standalone electronic universal controller with P or PI response
• Operating voltage in accordance to type AC 24 V • Control application selectable via Application Number 
• Active input scale can be selectable • Limit & direction of the output scale is able to be freely assigned 
• Two universal inputs for Ni 1000, Pt 1000 temperature sensors & 0…10 V signals
• Unit can be set as ºC, ºF, % or no specified unit 
• One modulating output with DC 0…10 V signal output, direct or reverse action 
• One two-position output, direct or reverse action 
• One digital input for day/night changeover 
• Entering or changing of all data via operating buttons on the controller, possible without additional tools 
• PC connection for downloading canned applications via the software tool

  • PI limiter function (absolute and relative limit)
  • Remote setpoint
  • Setpoint compensation
  • Winter/summer mode changeover (analogue or digital input)
  • Cascade control
  • Maximum priority for cooling / dehumidifying

About Us 

Here at Sembol LTD we sell new, refurbished, surplus and used hardware products. 

All products are subject to availability and passing our QA testing and inspection by our qualified technicians. 

We currently stock over 4,000 items with an MSRP greater than $1 million dollars.

Sembol LTD offers substantial cost savings while receiving quality products. 

Thank you again for visiting Sembol LTD. For any questions please contact us via the Ebay Message System/Contact Seller. 


  • Sembol LTD ships worldwide and accepts PayPal. 
  • All items are priced each. 
  • All products are subject to availability and passing our QA testing and inspection by our qualified technicians. 
  • For Customer Service please contact us via the Ebay Message System/Contact Seller. 


  • Pay with PayPal and you are fully protected.

Packaging and Handling 

  • Items are safely packaged in custom shipping cartons for protection. 

Turnaround Time 

  • Please contact us via the Ebay Message System/Contact Seller if you have any further questions about turnaround time.


  • We ship worldwide from Turkey, using PTT, USPS, UPS, FedEx, DHL or other couriers when needed. Let us know if you like to use a shipping service other than the ones listed.
  • International Customers are responsible for all Customs fees, import taxes, VAT, and other fees applied by their respective countries.

Return and Warranty Policy 

  • 30 days refund, buyer pays return postage.
  • Product must be returned in purchased condition.
  • If you are dissatisfied with a product from Sembol LTD you may return the product within 30 calendar days of the invoice date. No returns will be accepted 30 days after the invoice date. 
  • We do not accept returns of discounted products based on the date manufactured or the cosmetic condition of product or packaging.
  • All used products  are repackaged in custom shipping containers. Some used products may not come with manual(s) or other accessories normally supplied when buying factory new. 
  • Refunds will be issued only upon receipt and testing. 


Sembol LTD sells new, refurbished, surplus and used products also develops channels to purchase such products. 

Sembol LTD is not affiliated with nor an authorized distributor or representative of any manufacturer, brand or product listed. 

Designated trademarks, brand names and brands appearing herein are the property of their respective owners.