Radiator operators

Danfoss radiator thermostats help people to obtain comfort in their homes. By maintaining constant desired room temperatures, individually or room by room, and by helping to reduce energy consumption.

They can save approximately 20% compared to a manually operated valve due to utilization of free heat gains and constant room temperature.

Robustly built and designed to meet the rigors of domestic life, we offer an extensive range of radiator thermostats that increase comfort and save energy.

Features and benefits

Ensures optimal comfort at home, room by room.

The world’s only radiator thermostat with gas-filled sensor: One of the secrets of the radiator thermostat’s service life of over 20 years is the gas charged, precision-manufactured sensors. Unlike other fillings, gas maintains a high regulating capacity and reactivity.

How does a radiator thermostat work?

See how a Danfoss radiator thermostat works

Documents

Type	Name	Language	Valid for	Updated	Download	File type
Data sheet	Operator Replacement Identifier: Type RA / RAV to RA2000	English	United States	09 Mar, 2014	153.7 KB	.pdf
Installation guide	RA2000 RAVB Replacement Kit Installation Instructions (013X3180/82)	English	United States	02 Jul, 2014	613.9 KB	.pdf
Engineering sheet	RA2000 Submittal	English	United States	24 Jul, 2007	254.7 KB	.pdf
Installation guide	RA2000 Tamper-resistant operator installation instructions	English	United States	31 Jan, 2003	212.7 KB	.pdf
Data sheet	RA2000 Thermostatic Radiator Valve and Operator Datasheet	English	United States	09 Mar, 2014	1.0 MB	.pdf
Catalog	RA2000 Thermostatic Radiator Valve, Electric Zone Valve & Pressure Bypass Valve Catalog_VKGWC122	English	United States	21 Jun, 2015	1.3 MB	.pdf
Installation guide	Thermostatic Radiator Valve and Operator Cross Reference Guide_VQFNA122	English	United States	11 Apr, 2010	152.9 KB	.pdf

Videos

FAQ

General Info

How do i control room temperature with the operator?

Control of the space temperature at a comfortable level is easily accomplished by adjusting the dial clockwise or counterclockwise.

What do the numbers on the dial mean?

The dial has a numbered scale of 1 to 5 corresponding to temperatures of approximately 57°F to 79°F (14°C to 26°C).

I	*	1	2	3	4	5	I
45°F	50°F	57°F	63°F	68°F	73°F	79°F	86°F
7°C	9°C	14°C	17°C	20°C	23°C	26°C	30°C

How can I save energy when traveling?

Should the space be unoccupied for an extended period, the dial can be set to the star symbol (*) for freeze protection (50°F or 9°C) to save energy.

Mounting / Placement

What are some general tips on operator placement within the room?

The operator or sensing element must not be:

in a drafty location
covered
installed above a heat source

What is the correct mounting orientation of the operator?

The correct orientation direction is dependent upon the selected operator type. See the mounting guide visual below for reference.

Operator mounting correct orientation guide

Troubleshooting

What can I do if the radiator is producing too much heat?

There are a couple of reasons for overheating depending upon which system you have:

For One or Two-pipe systems:

Ensure operator is not in a cold or drafty spot
Check on dial adjustment knob as setting could be set too high
Add a vacuum breaker which allows steam supply to cycle properly

For Hot Water systems:

Check operator installation as it may not be seated properly

What if the radiator is not producing sufficient heat?

For 'under heating' issues:

Ensure radiator is not blocked by furniture, heavy curtains, etc.
Ensure operator is not in a 'hot' spot or wrong sensor location for that product selection.

Support

Technical Support

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