Danfoss WT-T Installation guide

Installation Guide

BasicPlus2 WT-T

Room thermostat

Installation Guide BasicPlus2 WT-T Room Thermostat

1. Installation Steps

GB

1. Installation must be done by an authorised
electrician.

2. The room thermostat should be installed at approx.

1.5 m above oor and where the eects of sunlight,
draught or other heat sources (eg. TV’s) are avoided,
see g. 1.

3. First of all, carefully remove the cover and dial knob,
see g. 2.

4. Connect the wire before mounting the back plate to
the wallbox using the enclosed screws. Then mount
the cover to the back plate, see g. 3.

2. Wiring

See g. 4 for dimensions and g. 5 for wiring diagram.
WT-T is often used with a Danfoss TWA actuator.
Depending on the conditions of power location and
actuator type (NC or NO), the wiring between room
thermostat and actuator is dierent.
Follow the illustrations to complete the wiring.

1. When power supply location is close to room

thermostat:

• Connect to actuator TWA 230 V NC type, see g. 6.

• Connect to actuator TWA 230 V NO type, see g. 7.

2. When power supply location is close to actuator:

• Connect to actuator TWA 230 V NC type, see g. 8.

• Connect to actuator TWA 230 V NO type, see g. 9.

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Installation Guide BasicPlus2 WT-T Room Thermostat

3. Notes

1. Correct wiring is essential; using instrument to con-

rm L and N before wiring is recommended.

2. Don’t remove too much of the insulation cover from

the wire to avoid short circuit caused by the naked
wire touching the metal 86 size mounting wall box.

3. Don’t let the screw press or touch the wire when

using screws to x room thermostat in wall box. A
short-circuit risk exists if the wire insulation cover is
damaged by the screw, and if the naked wire con­nects with the screw.

4. If walls must be painted, mount the room thermo-

stat after painting, to avoid dust or paint material
penetrating the room thermostat and thus damag­ing the PCB.

5. The max. load of relay is 3 A (resistive) or 1 A (induc-

tive, such as pump or motor). The relay will be dam­aged if the load exceeds the limit.

6. Don’t cover the thermostat, for instance by hanging

towels directly in front of it.

7. The room thermostat should be connected to the

corresponding loop actuator in individual room
temperature control.

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GB

Installation Guide BasicPlus2 WT-T Room Thermostat

4. Technical Specications

GB

Feature Description

Approval CE Marking, EN60730

Ambient temperature -10 - 60° C

IP Class 30

Max. load, inductive <1 A

Max. load, resistive <3 A

Power consumption 7 W

Power supply 230 Vac ±10%, 50/60 Hz

Room temp. set range 5 - 30° C

Shell material ABS + PC

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Installation Guide BasicPlus2 WT-T illustrations

Fig. 1

1.5 m

Fig. 2

Fig. 3

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Installation Guide BasicPlus2 WT-T illustrations

~

N
~

L

Fig. 4

Fig. 5

Fig. 6

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TWA
230V

NC

N

L

NO

NC

WT-T

NC NO L N

230 V

230 V

Installation Guide BasicPlus2 WT-T illustrations

N
~

L

N
230
L

N
230
L

Fig. 7

WT-T

TWA

230V

NO

NC NO L N

Fig. 8

TWA
230V

NC

V ~

NC NO L N

Fig. 9

TWA
230V

NO

V ~

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NC NO L N

230 V

WT-T

WT-T

Danfoss A/S

Floor Heating Hydronics
Ulvehavevej 61
DK-7100 Vejle
Denmark

Phone...[phone]

Fax ......[phone]

E-mail [e-mail]
www.heating.danfoss.com

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This also applies to products already on order provided that such alterations can be
made without subsequential changes being necessary in specications already agreed.
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the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

VICUL202 Produced by Danfoss Floor Heating Hydronics 03/2015