Danfoss REP24CO3 Especificaciones descargar pdf (Pagina 14)

RA2910 temperature range 5-26°C•

RA2920 tamperproof•

All models have locking and limiting •

feature

Use with RA-N, RA-FN or RA-G valves•

RA2000 sensors are high performance

temperature sensors ideally suited

for commercial applications. The

temperature sensor uses frictionless

bellows charged with a small volume

of liquiﬁed gas. The sensor relies upon

the state change from liquid to a gas as

the temperature of the liquid increases

to modulate the valve towards the

closed position. When the temperature

falls the gas condenses back to a

liquid and the spring within the sensor

allows the valve to modulate open

until the bellows pressure and spring

pressure are equal, and the valve cone

is stationary.

This type of saturated vapour pressure

sensor has many advantages including

low thermal mass giving quick reaction

times and a deﬁned sensor location at

coolest part of bellows system.

This latter feature gives the product a

very low ﬂow temperature dependence

making it ideal for use in systems

with weather compensated ﬂow

temperatures.

The range includes standard

temperature range (5-26°C) and low

temperature range (5-22°C) models.

Both incorporate range locking

and limiting features that allow the

commissioning engineer to lock or limit

the setting range of the sensor.

For best performance built-in

temperature sensors should be

mounted horizontally. Care should be

taken not to cover the thermostat or to

locate it where it may be inﬂuenced by

heat from electrical appliances or cold

draughts.

RA2910 Built in Sensor

RA2000 Built-in Sensors

Type Code No Sensor (max sensor temp 60°C) Temp Range Xp = 2K

RA2910 013G291000 Built-in 5-26°C

RA2914 013G291400 Built-in, low temperature range model 5-22°C

RA2920 013G292000 Tamperproof 5-26°C





Sensor Mounting

Locking and Limiting



Built-in Sensors - Standard and Tamperproof

RA2000

RA2920 Tamperproof Sensor

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 83 84

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