A11 MODEL – CONSTANT DIFFERENTIAL THERMOSTAT WITH AUXILIARY SWITCH
The A11 type is a constant differential thermostat and therefore the differential between cutin and cut-out temperatures is constant over the whole range. The minimum differential that can be obtained is 3°C. The A11 type has an auxiliary switch in series with the main switch, which is operated by rotating the shaft clockwise from MIN position to STOP. Calibration is carried out at a barometric pressure of 740mmHg.
Thermostats A11 are used to control the evaporation temperature in:
– single door refrigerators
– freezers without alarms
– bottle coolers
– ice cream cabinets
A11 type thermostats are compact, robust, and small in size. All their components are made in conformance to Directive 2002/95/CE R0HS, and in particular they have no Cr VI, while the gas used is CFC FREE in compliance with environmental
ELECTRICAL CHARACTERISTICS ANS TERMINALS
The terminals are disconnectable tabs with three standard sizes:
2.8 x 0.5mm, 6.3 x 0.8mm and 4.8 x 0.8mm
A11 thermostats have 2 terminals for earth connections:
6.3 x 0.8mm and 4.8 x 0.8mm fastons
3-4 Terminals: 6(6)A250V~µ
3-6 Terminals: 6(6)A250V~µ
The capillary tubes are made of copper with 3µ tin finishing. They can be supplied covered with a white extruded sleeve.
Standard length: 300mm with steps of 50mm up to 3000mm. Upon request we can supply capillary ends with bulbs or curl.
To ensure correct position, it must be in contact with the coldest part of the appliance. There must be a good physical contact between the evaporator and at least the last 120mm of the capillary, it is advisable to position this part of the capillary pointing slightly downwards. If there is insufficient space, the end of the capillary can be bent around the evaporator respecting the minimum bending radius.
ENEC 03 / UL / CSA