User guide

9-18
Safety thermostats
http://products.ecc.emea.honeywell.com/europe
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Sealing pipe thermostat with well.
The temperature monitor can be used for heating systems according to DIN 4751 for steam and hot
water systems and for district heating systems.
Accessories
Flue gas thermostat for safety control of solid fuel boilers (in combination with oil boilers).
Safety limiting thermostat, automatic reset (TWP1)
Protection class IP54
Housing material Aluminium diecasting with plastic cover
Ambient temperature 0 ... 80
o
C
Switch function/capacity SPDT 230 Vac, 10 A
Mechanical lock/reset no mechanical lock
Immersion depth 100 mm
Certificates TUEV-approval TW 89 201
Thermostat application immersion tube thermostat
Thermostat functions temp. setting inside, automatic reset
Temp. setpoint range 20 ... 150
o
C
Mounting place in pipe
Immersion well material red brass, nickel plated
Immersion well thread R1/2"
Max. perm. temp. at
sensor
175
o
C
Type
TWP1
Steel well R1/2" x 150 mm
T4NST
Flue gas thermostat
Switch function/capacity SPDT 10A/250Vac
Setpoint device inside
Mounting place flue gas vent
Temp. setpoint range 20 ... 400
o
C
Differential setting range 10 ... 18
o
C
Type
RGT240