Honeywell V2880 PRODUCT DATA

Honeywell y Subject to change EN0H-2110GE25 R0708

V2880, Therafix Design

Thera Design Edition - H-Block with TRV Insert

WITH HIGH QUALITY SURFACE FOR DESIGN RADIATORS

PRODUCT DATA

Straight

Angle right

Angle left

Design

The Therafix design H-Block consist of:

• Valve housing PN10, DN15 with

• external thread connection on inlet

• external thread connection with union-nut and radiator tail-

piece on outlet

• Pre-settable valve insert

• Protection cap

Materials

• Valve housing made of brass with chrome or white (RAL

9016) surface

• Valve insert made of brass with EPDM O-rings and soft seals

and stainless steel spindle

• Protection cap made of plastic

• Union-nut and tailpiece made of chrome plated brass with

EPDM O-ring

Application

The Thera Design Edition is particularly styled for use with de-

sign radiators. With their high class appearance they perfectly

fit to all kinds of ambients.

The Therafix Design is used to connect design radiators with

50 mm connection distance to 2-pipe hydronic heating sy-

stems. Therafix Design is equipped with a pre-settable TRV in-

sert in the supply, a pre-settable lockshield insert in the return

and an M30 x 1.5 thermostat thread.

H-Blocks of this type have quiet operation and are fitted to the

50mm connection on 2-pipe systems with medium flow rates.

The valve insert can be replaced while the system is running

and without draining using the service tool (see ‘Accessories’).

H-Blocks of this type are suitable for

• Honeywell radiator thermostats with M30 x 1.5 connection

and from an optical aspect especially the Thera-4 Design

series

Features

• For radiators with

" internal thread

• Perfect finishing with high quality surface in chrome or

white (RAL9016)

• Varius versions in angle and straight available to fit a

visual appealing installation

• Including a chromed tail piece with integrated O-ring

• Functions: control, pre-setting, shut-off

• For 2-pipe systems

• Standard M30 x 1.5 thermostat connection

• Connections for all types of pipework available

Specifications

Medium Water or glycol-water mixture,

quality to VDI 2035

pH-value 8…9,5

Operating temperature 2...130°C (36...266°F)

Operating pressure PN10

Differential pressure max. 1 bar (14.5 psi) –

max. 0.2 bar (2.9 psi) recommended

for quiet operation

Thermostat connection M30 x 1.5

Closing dimension 11.5 mm

Stroke 2.5 mm

Connection distance 50 mm

THERA DESIGN EDITION - H-BLOCK WITH TRV INSERT

EN0H-2110GE25 R0708 2 Honeywell y Subject to change

Function

The Therafix Design connects individual radiators to the

heating loop. Together with a radiator thermostat, e.g. Thera-4

Design (not supplied with the valve) the Therafix Design

controls the amount of heating water flowing through the radi-

ator depending on the ambient room temperature. When the

temperature increases the sensor inside the thermostat ex-

pands and acts onto the valve spindle of the thermostatic insert

of the Therafix Design. The valve is closed and the flow through

the radiator is throttled. When the room temperature decreases

the sensor contracts and the spring-loaded thermostatic insert

opens again – more heating water can flow through the radi-

ator.

The radiator is pre-settable with shut-off over the lockshield

insert integrated into the return of the valve. Pre-setting allows

throttling the flow through a radiator to realize a hydronic

balance. The shut-off function separates the radiator from the

heating loop, e.g. for removal.

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 require-

ments or needs

Pre-setting

The TRV is open by factory setting. Pre-setting is done by first

closing the valve insert (head black with pre-setting-figure 0-9)

on top of the valve body 2 turns right and then opening to the

pre-setting-figure derived from the flow diagram.

NOTE: One complete turn refers to pre-setting-figure 10,

2 complete turns to pre-setting-figure 20 and so on.

Another possiblility to preset the TRV is to open the lockshield

insert in the return to the pre-setting-figure derived from the

flow diagram of lockshield insert.

NOTE: Factory setting of lockshield insert is closed.

Application Examples

Fig. 1. Straight version Fig. 2. Angle version

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