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[. . . ] RADIATOR THERMOSTAT WITH INTEGRATED HEAT ELEMENT
PRODUCT DATA
T850 Thera-EL
Application
The temperature of different rooms is controlled individually and energy is saved. [. . . ] Thermostats of this type with M30 x 1. 5 connection are suitable for all Honeywell TRV bodies and radiator inserts, all Honeywell valve series M, as well as other TRV bodies and radiator inserts with M30 x 1. 5 connection and 11. 5 mm closing dimension.
34
12
5
Features
· Remote reduction of set temperature by applying a voltage of 12. . . 24 V for a reduction of 5. . . 13K · Contains a wax-filled sensing element with an excellent control characteristic
Design
The radiator thermostat consists of: · Housing with base · M30 x 1. 5 connection and 11. 5 mm closing dimension · Sensor with support cage · Wax-filled sensing element · Spindle assembly · Connection nut · Heat element with connection cable
· Large-area temperature receptivity · Blocking, limiting and narrowing of setting range possible
Specifications
Thermostat connection Setpoint range Temperature range Closing dimension Capacity Temperature reduction Cable connection M30 x 1. 5 - 1. . 5 6. . . 28°C (43. . . 82°F) 11. 5 mm 25 mW/K 13 K at 24 V AC/DC 0. 14. . . 0. 5 mm2
Materials
· Housing and socket made of plastic, white to RAL9010 · Support cage and spindle construction made of plastic · Sensor filled with wax · Connection nut made of nickel-plated brass · Connection cable LIYY, 2 x 0. 14-13
Honeywell
Subject to change
EN0H-2009GE25 R0108
T850 THERA-EL
Dimensions and Ordering Information
closed 82. 5 mm open 88. 5 mm
Function
Thermostats of this type control the TRV body. The medium passing around the sensor of the thermostat causes the sensor to expand when the temperatur rises. The sensor acts onto the valve spindle and this causes the TRV to close. When the temperature falls the sensor contracts and the spring-loaded valve spindle is opened. The TRV opens in proportion to the temperature of the sensor. Only the amount of water required to maintain the temperature set on the thermostat can flow through the valve.
52 mm
Temperature reduction
Fig. Available versions and OS-Nos (OS=Ordering Specification) Type Thera-EL, wax-filled element, without zeroposition OS-No. [. . . ] Subject to change · All rights reserved Manufactured for and on behalf of the Environmental and Combustion Controls Division of Honeywell Technologies Sàrl, Ecublens, Route du Bois 37, Switzerland or its authorized representative. [. . . ]
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