Room Thermostat with limitation sensor type OTD
- Recommended for control of underfloor heating and electrical heating.
- Electronic on/off control up to 3600W, 16A.
- Built-in setback mode for automatic comfort and setback temperature via timer.
- Flush mounting or wall mounting.
PRODUCT PROGRAMME
| Type |
Product |
| OTD-1999H |
Thermostats with built-in air sensor and limitation floor sensor 3 m |
| Accessories |
|
| OTN-VH |
Baseplate for surface wall mounting |
THERMOSTAT FUNCTIONS
Thermostat control:
Type OTD is an electronic on/off thermostat with control of temperature by means of NTC sensor. The heat output is switched on and off with a difference of only 0.4°C. Red LED indicates when heating is on.
Temperature setback:
Type OTD with setback mode, adjustable 2-8°C, standard set to 5°C which is activated with a day/week timer, e.g. MM-7595. The timer is programmed with the required comfort and setback periods.
Temperature limitation:
OTD is obtainable with built-in room sensor and incl. floor sensor. Sensor 1 is used for control of comfort temperature. Sensor 2 can be used for one of the following functions:
a) Min. temperature limitation.
b) Max. temperature limitation.
c) Regulation of the comfort temperature in two zones in large rooms.
TECHNICAL DATA
| Supply voltage |
230V +10/-15%, 50/60 Hz |
| Output relay SPST |
16A, max. 3600W |
| Built-in interrupter |
2-pole |
| Temperature range |
+5/+40°C |
| Setback mode (via remote timer) |
2-8°C |
|
Temperature limitation
- min limitation
- max limitation |
+15/+30°C
+25/+50°C
|
| On/off differential |
0.4°C |
| Ambient temperature |
0/+50°C |
| Housing |
IP 20 |
| Sensor type |
NTC |
| Dimensions (H/W/D) |
80/80/50 mm |
Temperature setback: Type OTD with setback mode can be connected to day/week timer, which is programmed with the required comfort and setback periods. Adjustment of the thermostat: Temperature range +5/+40°C for easy setting of required temperature. With the locking rings behind the thermostat button the min./max. temperature setting can be selected.
MOUNTING
Mounting of the thermostat:
1. Flush mounting in standard wall socket.
2. In combination with light switch types Busch-Jaeger, Merten, Ensto, and Eljo. Relevant type double frame is used.
3. Surface wall mounting with baseplate type OTN-VH.
Type of temperature sensor:
Type OTD is delivered with built-in air sensor and incl. floor sensor.
Mounting of floor sensor:
Floor sensor is used for comfort heating of floor. The sensor is mounted in conduit of consideration of replacement. The conduit is mounted between heating cables and ended towards the floor surface. If required, the floor sensor can be extended up to 100 m with a standard installation cable.
Mounting of room sensor:
Room sensor is used for room heating. The thermostat is mounted approx. 1.6 m above the floor. Draught, direct sunlight or any other direct heating outlet must be avoided.
Mounting of limitation sensor:
Max. temperature limitation is used for protection of installation or construction against excessive temperature. The sensor is mounted at a place where excessive temperature may arise.
Min. temperature is used for better heating comfort. The sensor is mounted as floor sensor. |
