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Thermokon · Frost protection thermostat

TFR-R active

Name: TFR-R active
Brand: Thermokon

Capillary frost protection thermostat with a 1.8 to 12 m sensing length and a changeover relay, for heat exchangers in ventilation systems.

Availability and lead time confirmed on your quote

Length: 3 m

Part number430388

Quotes answered within 24 hours, no account needed
DHL, under 15 kg £13.50 ex VAT
Technical support from the people who commission it

Specification

Communication

Connection: Terminal block, max. 2.5 mm², M16 cable entry for 8 mm cable

Environment

Operating temperature: -35 to +70 °C
Humidity: Max. 85% rH, short term condensation
Protection: IP65 IP rating

Performance

Measuring range: Setpoint -10 to +15 °C, default +5 °C
Outputs: 1 single pole changeover relay, 250 V AC, max. 10 A, switching difference 2 K ±1 K
Accuracy: Repeatability ±0.5 K
Probe length: Capillary 1.8, 3, 6 or 12 m, copper, R507 filling, approx. 600 mm active length

Physical

Housing material: PA6 GK30, transparent ABS cover
Colour: Light grey

Part numbers

From the manufacturer's datasheet for TFR-R active.

Overview

The TFR-R monitors the air temperature downstream of a heat exchanger in ventilation and air conditioning plant. Its small switching difference and high repeatability make it accurate for frost protection. Reset can be automatic or manual, and the housing has a reset button. On a trip the contact can stop the fan, close the outside air damper, open the heating valve to 100%, start the heating pump, switch off the chiller and humidifier, or raise a frost alarm. The capillary comes in 1.8, 3, 6 and 12 m. The MF2 mounting flange can be used from 3 m.