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Data Sheet
Basic Plus
2
Floor Heating Room Thermostats
Application
VDCUC302
WT-T WT-D/WT-DR
All room thermostats are used for room temperature control in water-based floor heating systems.
By controlling room temperature in accordance with the temperature desired by the user, the room thermostats provide optimal energy savings while upholding optimal thermal comfort in the room.
Functions
Room Thermostat, WT-T (Dial)
By turning the dial to the desired setpoint temperature, optimal thermal comfort in the room is achieved. In addition to temperature, the thermostat setting scale includes a frost symbol allowing for minimal energy consumption while avoiding freezing temperatures in the room.
The thermostat is equipped with diodes, which display a green light through the front cover while the thermostat is ON, but without heat demand.
A red light is displayed when the thermostat is ON and there is heat demand.
Features of Room Thermostats, WT- D (display) and
WT-P (display and programmable):
• Modern design with white backlight.
• AWAY function.
• Child safety lock.
• 3 selectable temperature control modes:
1. Room temp. control (default).
2. Room with floor temp. limit control.
3. Floor temp. control.
• 2 selectable floor temperature control modes:
1. High
2. Low
• Max. and min. limit settings for room and floor temperature.
• Optional room temperature display when power is OFF (default setting: no display).
Room Thermostats, WT- DR (display) and WT-PR
(display and programmable)
The thermostats have voltage-free auxiliary SPST relay for controlling the external equipment, such as a boiler.
Additional features:
• Programmable 5/2-day feature with 4 time segments (WT-P & -PR).
• Clock in 12-hour or 24-hour format (WT-P & -PR).
Other functionalities are identical with those listed for WT-D and WT-P.
WT-P/WT-PR
• Floor sensor terminals. For thermostats equipped with LCD display, enabling control of maximum floor temperature and reducing the risk of overheated and damaged floors (for specific maximum floor temperatures, refer to the recommendations from floor suppliers).
• Frost protection mode. Use this feature instead of turning the thermostat OFF completely to protect against damages due to low temperatures. The room temperature will be maintained around 5° C.
• Temperature calibration. This function allows you to change the temperature setpoint of the room thermostat, to compensate for a possible temperature deviation between the room thermostat and, for example, the centre of the room.
• Advanced programmable timer. This function allows you to set a timer-controlled program for automatic comfort temperature and energysaving lower setback temperature when standard room comfort temperature is not required.
© Danfoss | FHH | 2015.09 | 1
Data Sheet
Ordering
Basic Plus
2
Floor Heating Room Thermostats
Product
Basic Plus
Basic Plus
2
2
WT-T Toggle
WT-D Display
Type
Supply voltage
Output voltage
Code no.
WT-T 230 V AC 230 V AC 088U0620
WT-D 85–250 V AC 85–250 V AC 088U0622
Basic Plus
Basic Plus
2
2
WT-DR Display and Relay
WT-P Programmable
WT-DR 85–250 V AC 85–250 V AC 088U0624
WT-P 85–250 V AC 85–250 V AC 088U0625
Basic Plus 2 WT-PR Programmable and Relay WT-PR 85–250 V AC 85–250 V AC 088U0626
Accessories
Product
BasicPlus floor sensor
Type Code no.
FH-CWF 088U0610
Technical specifications
Feature
Type
Operating room temperature
Operating floor temperature
Ambient temperature
Fault indication
Hysteresis
LCD backlight
Max. load, inductive
Max. load, resistive
Auxiliary relay
Temperature calibration
Power consumption
Power supply
Sensor, room
Sensor, floor
Shell material
IP class
WT-T
Dial with LED indicator
Off, 5 - 30° C
WT-D/DR
LCD display with push buttons
WT-P/PR
LCD display with push buttons, programmable
Off, 5 - 35° C
-
No
7 W
230 V AC ±10 %,
50/60 Hz
NTC 10K, accuracy: ±1%
-
-
-
1° C, below the setpoint temperature
-
Off, 20 - 45° C
-10 - 60° C
Yes
1° C, symmetrical around the setpoint temperature
Yes, white
< 1 A
< 3 A
Volt-free relay (WT-DR and WT-PR), e.g. boiler
Yes (+/-10° C)
2 W
85–250 V AC,
50/60 Hz
Optional (FH-CWF)
ABS, non-inflammable
30
NTC 100K, accuracy: ±1%
ErP class
Approval
Colour
Dimensions
(1%)
CE marking, EN 60730
White RAL9010/Dark Grey RAL7024
86 × 86 × 30 mm 86 × 86 × 16.0 mm
2 | © Danfoss | FHH | 2015.09
VDCUC302
Data Sheet
Wiring connections
Dimensions
Basic Plus
2
Floor Heating Room Thermostats
Room thermostat, WT-T
N
L
NO
NC
230 V ~
Room thermostat, WT-D/P
S2
S1
N
NC
NO
L
230 V ~
S1, S2: floor sensor
Room thermostat, WT-DR/PR
N
NC
NO
L
S2
S1
A1
A2
230 V ~
S1,S2: floor sensor
A1,A2: volt-free auxiliary relay, e.g. boiler
Room Thermostat, WT-T (Dial)
0
60.0
86.0
Room Thermostat, WT-D/WT-P
30.0
86.0
Room Thermostat, WT-DR/WT-PR
16.0
24.5
50.0
86.0
16.0
24.5
46.2
VDCUC302 © Danfoss Danfoss | FHH | 2015.09 | 3
Application examples
Individual room temperature control
Reference room temperature control
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Individual room temperature control
Reference room temperature control
0
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Danfoss A/S
Floor Heating Hydronics • Ulvehavevej 61 • DK-7100 Vejle • Denmark • Phone: +45 7488 8500 • Fax: +45 7488 8501 [email protected] • www.floorheating.danfoss.com
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
4 | © Danfoss | Danfoss | FHH | 2015.09
VDCUC302
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