Anti freeze switch QAF81

NegotiableUpdate on 10/04

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Antifreeze switch 1. Application areas: Used in refrigeration/air conditioning systems, for refrigeration and heating, for low-temperature antifreeze protection, and for air conditioning systems, for temperature monitoring and protection of fan coil units

Product Details

freeze protection
1. Application Fields
Applied to refrigeration/air conditioning systems
Applied to refrigeration, heating, low-temperature antifreeze protection, and air conditioning systems
Applied to temperature monitoring and protection of fan coil units, air duct temperature detection and control
Antifreeze protection control of refrigerants and freezers

2. Product advantages
High reliability, high precision, sealed and dustproof
Not affected by atmospheric pressure
Simple to set up and easy to adjust

3. Technical parameters
QAF81.3/QAF81.6/QAF81.6M
Set the measurement range to -5~15 ℃
Deviation ± 2K
Allowable voltage AC250V
Allowable current 10 (2) A
Protection level IP54
Installation method at any location
Wiring - normally open,- Normally closed
Remarks: Capillary tubes 3m, 6m, 6m/manual
Installation bracket AQM63.3, requires separate ordering

4. Installation precautions
Leave a 20cm capillary tube so that its function can be tested externally
If the supply air duct is located outdoors or in a space without heating devices, the measurement circuits of the sensing head and thermostat must be located inside the duct and on the downstream side of the heat exchanger
Install the capillary tube along the direction of air flow. When installing the capillary tube downstream of the first exposed hot coil, it should be installed diagonally with the heat exchanger pipeline
When installed in a drawer style unit, ensure that the circuit connection is long enough to allow the part to be removed
If a cold coil is installed upstream of the first heat exchanger, the antifreeze thermostat must be installed upstream of the cold coil, along the direction of the airflow
For the heat exchanger used, or a heat exchanger composed of multiple units, multiple anti freezing thermostats must be installed (at least one for each unit)