Honeywell Home T850 Thera-EL Radiator Thermostat with Integrated Heat Element Datasheet

OBJ DOKU-1055-001

6

T850 Thera-EL

View

Product Information Search Results

Full PDF Document

Loading PDF...

−+Fit width100%View FullscreenDownload PDFPrint PDF

×

Loading PDF...

If the inline viewer fails, it will open the original document in compatibility mode automatically. You can also open the file directly.

Extracted Text

T850 Thera-EL
RADIATOR THERMOSTAT WITH INTEGRATED HEAT ELEMENT

PRODUCT DATA
Design
The radiator thermostat consists of: � Housing with base � M30 x 1.5 connection and 11.5 mm closingdimension � Sensor with support cage � Wax-filled sensing element � Spindle assembly � Connection nut � Heat element with connection cable
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

1

5

Application
The temperature of different rooms is controlled individually and energy is saved.
Thermostats of this type are temperature-controlled proportional action regulator. Thermostats of this type offer a considerable economical effect in two ways: depending on usage, rooms in a flat can be tempered differently. Furthermore thermostats of this type detect appearing external heat, for example solar heat, heat emission from persons, devices, illumination, etc., and closes the thermostatic valve adequately. In addition the set temperature can be electrically reduced remotely by 5...13K.
Thermostats of this type with M30 x 1.5 connection are suitable for all Honeywell Home TRV bodies and radiator inserts, all Honeywell Home valve series M, as well as other TRV bodies and radiator inserts with M30 x 1.5 connection and 11.5 mm closing dimension.

Features
� Remote reduction of set temperature by applyinga voltage of 12...24 V for a reduction of 5...13K
� Contains a wax-filled sensing element with an excellent control characteristic
� Large-area temperature receptivity
� Blocking, limiting and narrowing of settingrange possible

Specifications

Thermostat connection M30 x 1.5

Setpoint range

 - 1..5

Temperature range 6... 28�C (43...82�F)

Closing dimension

11.5 mm

Capacity

25 mW/K

Temperature reduction 13 K at 24 V AC/DC

Cable connection

0.14.. 0.5 mm2

Resideo Technologies Subject to change

EN0H-2009GE25 R1020

T850 THERA-EL

Dimensions and Ordering Information
closed 82.5 mm open 88.5 mm

 52

Fig. 1. Dimensions
Table 1. Available versions and OS-Nos (OS=Ordering Specification)

Type Thera-EL, wax-filled element, without zeroposition

OS-No. T850V24

Setpoint

Table 2. Thermostats of this type with zero-position('0')

Setpoint 0 �C �F



1

2

3

4

5

6 12 16 20 24 28

43 54 61 68 75 82

NOTE: All �C- and �F-values specified at ideal incident flow. This can differ from stated values depending on installation position and air flow.

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.
Temperature reduction
5 K at 12 V AC/DC 8 K at 16 V AC/DC 11 K at 20 V AC/DC 13 K at 24 V AC/DC
Please Note: � To avoid stone deposit and corrosion the composition of the
medium should conform with VDI-Guideline 2035 � Additives have to be suitable for EPDM sealings � System has to be flushed thoroughly before initial operation
with all valves fully open � Any complaints or costs resulting from non-compliance with
above rules will not be accepted by Honeywell Home � Please contact us if you should have any special require-
ments or needs

Accessories
Theft-protection ring, white (RAL9016)

Adapter TA6900A001

DA-Adapter from Danfoss snap connection RA to M30 x 1.5

TA1010DA01

Torx-Screwdriver for theft-protection ring
Decoring for connection nut white (RAL9016) 10 pair, 20 pieces white (RAL9016) 1 pair, 2 pieces chrome 10 pair, 20 pieces chrome 1 pair, 2 pieces

TA6900B001
TA1000A001 TA1000A011 TA1000A002 TA1000A022

Adapter

HZ-Adapter from M28 x 1.5 with 9.5 mm closing dimension to M30 x 1.5 with 11.5 mm closing dimension

TA1010HZ01

Special tool for assembly of thermostat

VA8210A001

www.resideo.com

Ademco 1 GmbH Hardhofweg 40 74821 Mosbach Phone: +49 1801 466 388 info.de@resideo.com homecomfort.resideo.com

@2020 Resideo Technologies, Inc. All rights reserved The Honeywell Home trademark is used under license from Honeywell International Inc. This product is manufactured by Resideo Technologies,Inc and its affiliates.