INSTRUCTION
i
Read this instruction before installation
and wiring of the product
MTIR
Consult documentation in all cases where this symbol
is used, in order to find out the nature of the potential
hazards and any actions to be taken
1
MTIR
Mechanical capillary thermostat
The MTIR electro-mechanical thermostats are constructed around a
fluid-filled capillary tube and sensor housing that transfers the chan
-
ges in temperature to a change-over relay. In thermostats constructed
for wall mounting, the capillary tube is wound and mounted on top of
the housing. The relay is capable of breaking up to 15 A at 230 V AC.
It comes in a 1-step or 2-step model.
Technical data
Sensor element
Liquid-filled coiled copper bulb
Contacts
Dust-tight microswitches with SPDT
contacts (heat/cool)
Switch capacity
15 (8) A, 24...250 V AC
Ambient temperature
-35…+65°C
Ambient humidity
10…90 % RH (non-condensing)
Max. bulb temperature
65°C
Housing
Bayblend
®
base, ABS cover
Protection class
IP65
Isolation class
1
Weight
450 g
Storage temperature
-40…+70°C
Storage humidity
up to 95% RH
Article
Temperature
range
Steps
Step diff.
max
Hysteresis
MTIR30S
-30...+30°C
1
2…15 K
MTIR30SH
-30...+30°C
1
2…15 K
MTIR30
-30...+30°C
1
1 K
MTIR30-2
-30...+30°C
2
2…5 K
1 K
MTIR60S
0...60°C
1
2…15 K
MTIR60
0...60°C
1
1 K
MTIR60SH
0...60°C
1
2…15 K
MTIR60-2
0...60°C
2
2…5 K
1 K
Article
Max. bulb
temp.
Hidden
setpoint
MTIR30S
65°C
MTIR30SH
65°C
*
MTIR30
65°C
MTIR30-2
65°C
MTIR60S
65°C
MTIR60
65°C
MTIR60SH
65°C
*
MTIR60-2
65°C
Before installation or maintenance, the power supply must first be discon
-
nected in order to prevent potentially lethal electric shocks! Installation or
maintenance of this unit should only be carried out by skilled professio
-
nals.
Installation
The unit can be mounted in any position.
Remove the external knob and unscrew both screws on the cover.
Use the supplied screws when mounting on wall or other surface.
Wiring
1-step models
Heating:
Connect to the red and blue terminal. The contact will open when the
temperature rises.
Cooling:
Connect to the red and white terminal. The contact will open when the
temperature drops.
2-step models
Heating:
Connect to the red and blue terminal. The contact will open when the
temperature rises. The step 2 contact will open first followed by the
step 1 contact.
Cooling:
Connect to the red and white terminal. The contact will open when
the temperature drops. The step 2 contact will open first when the
temperature drops, followed by the step 1 contact.
12972C
DEC 17
EN
Red
Blue
White
Red
Blue
White
