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Danfoss
Baltimore, MD
Toll Free: 866-375-HVAC (4822)
Fax: 416-352-5981
www.heating.danfoss.us
Danfoss
Toronto, ON
Toll Free: 866-375-HVAC (4822)
Fax: 416-352-5981
www.heating.danfoss.us
VISXA222 © Danfoss 04/16
Installation
Instructions
RA2000 One Pipe Steam (1PS)
Thermostatic Radiator Valve
Symptoms Cause / Issue
“Spitting” air vent
• Check the pitch of the radiator
• Fully open the supply valve
• Check riser air vent for main system
• Verify if excessive pressure is within system
Overheating within room
• Ensure thermostatic operator is in an appropriate location
• Move remote sensor or dial/sensor to a different location
• The vacuum breaker mechanism may be clogged with debris
• Verify if excessive pressure is within system
Under heating within room
• Ensure thermostatic operator is in an appropriate location
• Move remote sensor or dial/sensor to a different location
• The air vent may be stuck closed
• Check riser air vent for main system
• Check the pitch of the radiator
• Verify if excessive pressure is within system
Troubleshooting:
Setting:
The user can easily set room temperature by turning the dial clockwise or
counterclockwise. The diagram to the left shows the approximate relationship
between dial scale numbers and room temperature.
At its lowest setting, the RA 2000-1PS provides frost protection and maintains
room temperature at approximately 45°F.
At its highest setting, the RA 2000-1PS maintains room temperature at
approximately 85°F.
The temperature on all RA 2000-1PS models may be limited or locked (see
instructions included with specic operator for details on this procedure).
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