Danfoss BasicPlus2 WT-DM User manual

Installation Guide
BasicPlus2WT-DM
Room thermostat

1 Installation Steps
2 Wiring
Installation Guide
WT-DM Installation Instruction
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The User Guide can be downloaded from: heating.danfoss.com.
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. See g.2.
4. Connect the wire before mounting the back plate to the
wall box using the enclosed screws. Then mount the cover
to the back plate. See g.3.
1. Dimensions, see g.4.
2. Wiring diagram,see g.5. (S1,S2:oor sensor terminals;A+,B-:
Modbus communication terminals).
3. WT-DM is often used with Danfoss TWA actuator. Depending
on the conditions of power location and actuator type (NC or
GB

1. When power supply location is close to room thermostat:
type,see g.6.
type,see g.7.
type,see g.8.
type,see g.9.
NO), the wiring between room thermostat and actuator is dif-
ferent.Follow the illustrations to complete the wiring:
3

Technical Specifications
Communication protocol Modbus RTU
Communication interface RS485
4

DM
CN
安装指南
WT-DM 安装说明书
必须由经过专业培训合格的电工进行安装。
1.
2.
室内温控器应当安装在地面上方大约1.5米处，并且避免
受到日光、气流或者其他热源（例如：电视）的影响。
请见图1。
在将背板固定至暗线箱之前，使用随附的螺钉连接导
线，然后将盖子安装至背板。请见图
5

CN
6

CN
通讯协议 Modbus RTU
通讯接口 RS485
7

Fig. 1
1.5 m
Fig. 2
Fig. 3
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8

Fig. 4
86.0
86.0
24.516.0
62.3
46.2
Fig. 5
S2
S1
B-
A+
N
NC
NO
L
230 V ~
Modbus Communication
Floor Sensor
Fig. 6
N
230 V
~
L
TWA
230V
NC
WT-DM
L NO NC N A+ B- S1 S2
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Danfoss Heating Solutions10
Installation Guide BasicPlus2WT-DM
Fig. 7
N
230 V
~
L
TWA
230V
NO
L NO NCN A+ B- S1 S2
WT-DM
Fig. 8
N
230
V ~
L
TWA
230V
NC
L NO NC N A+ B- S1 S2
WT-DM
Fig. 9
N
230
V ~
L
TWA
230V
NO
L NO NC N A+ B- S1 S2
WT-DM