background image

DKCD

VD.51.Q1.

12 © Danfoss 10/2003

3

7

9,5

14

17

20 °C

l

¬

1

2

3 •

5

7,5

12

15

18 °C

7

9,5

14

17

20

23

26 28°C

l

¬

1

2 • • 3 • • 4

5

l

5

7,5

13

15

18

21

24 26°C

10

14

18

22

26

30°C

¬

1

2 • • • 3 • • • 4

5

8

12

16

20

24

28°C

¬

 = Frost protection setting

RA 5062, RA 5065, RA 5068

RA 2914 RA 2916

RA 2920, RA 2922

RA 2910, RA 2912

To support the range of RA2000 radiator
thermostats, a wide selection of spare parts and
accessories for both sensors and valve bodies is
available. The table above lists the more popular
parts including fittings.

Replacement Gland Seals
All Danfoss radiator thermostats manufactured
since the early 1960’s have gland seals which are
replaceable without the need to drain down the
system.

Replacement Sensors for earlier  Danfoss
Thermostats
In order to provide a service and upgrade option for
earlier RAV and RAVL valve bodies, a range of
service sensors is available.
Please request details.

The required room temperature is set by rotating
the sensor handle to match the scale number with
the setting register. The correlation between scale

Setting the temperature

numbers and room temperatures (at Xp=2K) is
shown on the right.
The values shown are for guidance only.

Accessories

Data Sheet

Radiator thermostats for one-pipe and two-pipe systems

Accessories for RA 2000 sensors

Code  no.

Anti.theft plugs for sensors

(50 pcs)

013G1232

Threaded range limiting pins

(30 pcs)

013G1237

RA 2020/2022 scale cover

(20 pcs)

013G1233

Toolkit, comprising allen key & locking pin tool

013G1236

Accessories for RA-FN and RA-G valves

Code  no.

Gland seal for RA-FN and RA-G valves (Can be replaced without draining down)

013G0290

Manual positive shut-off knob

013G5002

Spare protective green cap

013G0275

Compression fittings for RA-FN valves

Code  no.

3/8" x 10 mm

for RA-FN 10

013G4100

3/8" x 12 mm

for RA-FN 10

013G4102

½" x 10 mm

for RA-FN 15

013G4110

½" x 12 mm

for RA-FN 15

013G4112

½" x 15 mm

for RA-FN 15

013G4115

¬

 = Frost protection setting

¬

 = Frost protection setting

Summary of Contents for RA 2000

Page 1: ...hout draining down the system The protective cap supplied with each new valve may be used for manual control during installation only It should not be used as isolation device A manual shut off device...

Page 2: ...ure is 2 C higher at de sign load condition 2 Remote sensors are supplied with all the capillary tube coiled within the sensor When installing the sensor only the length required should be uncoiled 3...

Page 3: ...ase request details The required room temperature is set by rotating the sensor handle to match the scale number with the setting register The correlation between scale Setting the temperature numbers...

Page 4: ...o temperature variations The time constant fig 3 depends on the specific heat and surface of the sen sor At a sudden change of the ambient temperature at time 0 the thermostat will react as shown rela...

Page 5: ...sible To ensure that the valve capacity of a fully opened valve is not significantly greater than that at 2 degrees C P deviation all RA FN valves have a modified valve characteristic This improved va...

Page 6: ...Capacities Use the following sizing charts to select the correct valve for the radiator in question Heat requirement 2 05 kW Temperature drop 11 C Differential pressure across the radiator 0 05 bar 5...

Page 7: ...ard beneath the radiator if free of surface pipes All remote sensors are now supplied with ultra thin capillary Simply pull out the length required 2m max and fix using clips provided Remote temperatu...

Page 8: ...perature adjuster DN D d2 RA FN 10 10 Rp 3 8 R3 8 60 85 27 52 22 47 96 22 27 RA FN 10 UK 10 Rp 3 8 R3 8 103 26 51 22 22 27 RA FN 15 15 Rp 1 2 R1 2 67 95 30 58 26 47 96 27 30 RA FN 15 UK 15 Rp 1 2 R1 2...

Reviews: