Honeywell 2080WL, T7500 User Manual

T7500

2080WL

THERMOSTAT WITH REMOTE SENSOR FOR WATER AND AIR

PRODUCT DATA

Application

Thermostats of this type are proportional controller without
external energy requirement for the temperature-dependent
control of warm air heaters, hot water generators, heat ex­changers, etc. The remote sensor is directly immersed into the
medium. Alternatively a sensor immersion pocket is available
separately as an accessory.

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.

Features

• Liquid-filled sensing element

• Memory-clip

• Equipped with concealed limiting and blocking tabs

Design

The radiator thermostat consists of:

• Housing with lid and socket

• M30 x 1.5 connection and 11.5 mm closing dimension

• Liquid-filled sensing element with capillary tube (length 2m)

• Capillary tube

• Connection nut

Materials

• Handwheel and lid made of plastic, white to RAL9010

• Socket made of black plastic

• Support cage and spindle construction made of plastic

• Liquid-filled copper sensor phial with nickel-plated copper
capillary tube

• Connection nut made of nickel-plated brass

Specifications

Operating temperature max. 130°C (266°F)

Differential pressure max. 0.3...1 bar (4.4...14.5 psi),

dependent upon used TRV body

Thermostat connection M30 x 1.5

Setpoint range 2..7

Temperature range 20...70°C (68...158°F)

at nominal flow rate

Closing dimension 11.5 mm

NOTE: P-bands given in the flow diagrams of thermostatic

valves have to be multiplied with two when the valves
are used with the 2080WL.
Example: kv-value 0.45 at 2K P-band for use with a
normal thermostat changes to kv-value 0.45 at 4K
P-band for use with the 2080WL.

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.

Honeywell y Subject to change EN0H-2005GE25 R1206

T7500 - 2080WL

Dimensions

Fig. 1. 2080WL with remote sensor

NOTE: All dimensions in mm unless stated otherwise.

Ordering Information

OS-No.: T750120

Setpoint

NOTE: All °C and °F-values approximate.

Setpoint234567

°C 20 30 40 50 60 70

°F 68 86 104 122 140 158

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

• Please contact us if you should have any special require­ments or needs

Installation Examples

Fig. 2. Control of air heater Fig. 3. Mixer control for underfloor

heating

Accessories

Theft-protection ring

with Allan screws TA2080A001

with double-punch screws TA2080A002

Screwdriver for double-punch screws

TA2080B002

Brass sensor pocket

Sealing kit for installation 2080WL

Special tool for assembly of thermostat

Fig. 4. For hot water storages and heat

exchangers

R1/2" TA2085A001

R1/2" TA2085B001

VA8210A001

Automation and Control Solutions

Honeywell GmbH

Hardhofweg

74821 Mosbach, Germany

Phone: [phone]

Fax: [phone]

www.honeywell.com

EN0H-2005GE25 R1206
Dezember 2006
© 2006 Honeywell International Inc.
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 by its Authorized Representative.