Frost protection thermostat
Model A2G-65


Applications

  • For air-side temperature control and prevention of frost damage to water heating coils in ventilation and air-conditioning systems
  • Through the frost protection thermostat switching, the following frost-protection measures, for example, can be initiated:
    - Ventilator OFF
    - External air damper CLOSED
    - Heating coil valve 100 % OPEN
    - Heating coil pump START
    - Chiller (condenser) and air-humidifier OFF
    - Activation of the visible and/or audible frost warning alarm

Special Features

  • Automatic resetting
  • Small switching difference
  • High repeatability
  • Simple mounting
  • Incl. mounting accessories
Frost protection thermostat model A2G-65
Frost protection thermostat model A2G-65

Description

 

Design
CE conformity: 2004/108/EG Electromagnetic compatibility (EMC)
Product safety: 2001/95/EC Product safety
EMC: EN 60730-1: 2002
Product safety: EN 60730-1: 2002

Adjustable range for setpoint
-10 … +15 °C (Factory setting: 5 °C)

Switching difference
≤ 2 ±1 °C

Repeatability
±0.5 °C

Sensor active length
approx. 60 cm

Switching output
Changeover contact, max. 250 V AC, max. 10 A
Contact material: Ag / Ni (90 % / 10 %), gold-plated (3 μm)

Permissible temperature
Storage: -30 … +70 °C
Ambient: -30 … +70 °C, max. 85 % rH, non-condensing
Medium: w + minimum 2 K … 70 °C
(w = selected setpoint)

Ingress protection
IP 65 per EN 60529 / lEC 529

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