Brunton Microline^® Thermostat for wall mounting -
Type MTU

Thermostat for surface wall mounting type MTU

• Recommended for control of underfloor heating and electrical heating.
• Electronic on/off control up to 2300W, 10A.
• Built-in setback mode for automatic comfort and setback temperature via timer.
• Surface wall mounting.

PRODUCT PROGRAMME

Type	Product
230 V MTU-1991HN	Thermostat with setback mode 5°C incl floor sensor 3 m Remote room sensor can be connected
MTU-1999HN	Thermostat with setback mode 5°C with built-in air sensor 1)
110 V MTU-2991HN	Thermostat with setback mode 5°C incl floor sensor 3 m Remote room sensor can be connected
MTU-2999HN	Thermostat with setback mode 5°C with built-in air sensor 1)
Accessories
ETF-944/99-H	Remote room sensor for surface wall mounting
MTC-AH	Protective cover

THERMOSTAT FUNCTIONS
Thermostat control:
Type MTU 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 MTU with setback mode 5°C which is activated with a day/week timer. The timer is programmed with the required comfort and setback periods.

TECHNICAL DATA

Supply voltage	230V + - 10%, 50/60 Hz 110V + - 10%, 50/60 Hz
Output relay	SPST
w/ floor sensor	10A, max. 2300W
w/ air sensor	8A, max. 1800W
Temperature range	+5/+40°C
Setback mode (via remote timer)	5°C
On/off differential	0.4°C
Ambient temperature	0/+50°C
Housing	IP 20
Sensor type	NTC
Dimensions (H/W/D)	84/84/28 mm

Temperature setback:
Type MTU 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.

MOUNTING
Mounting of the thermostat:

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. Thermostat with internal sensor is mounted approx. 1.6 m above the floor. Draught, direct sunlight or any other direct heating outlet must be avoided. If it is not possible to mount the thermostat in the correct position, remote room sensor type ETF-944/99 is recommended. Type of thermostat incl. floor sensor is used, but a room sensor is mounted instead of floor sensor.