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AFP • Antifreeze valves

  • Hydraulic accessories
  • Antifreeze valves

The mechanical antifreeze valve (iStop® 108701) is used to keep the water in the heating and cooling circuit running and to prevent ice formation. When the temperature of the medium reaches 3°C, the internal sensor opens and allows water to drain out of the system. This valve is designed for systems with monobloc heat pumps and prevents damage to the machine and the circuit components if the power supply is cut off and the temperature of the medium drops below 3°C.

Brand

Caleffi

Composition

  • Sold by piece

Installation

The device must only be installed in a vertical position, with the outlet facing downwards, to allow the drained water to flow out properly and free from obstructions. The antifreeze valves must be installed outdoors, where the lowest temperatures are reached if the heat pump is blocked. The antifreeze valves must be positioned far away from heat sources in order to maintain proper operation. It is recommended to install the antifreeze valves on both pipes (flow and return). Otherwise, the pipe may remain filled with water, leading to the risk of ice formation.

The complete installation and commissioning instructions can be found in the manual under “Downloads”.

Specifications

  • Connection: G 1 1/4" A (ISO 228-1) M
  • Maximum operation pressure: 10 bar
  • Liquid temperature range: 0–65°C
  • Ambient temperature range: -30–60°C
  • Opening temperature: 3°C
  • Closing temperature: 4°C
  • Material: brass

Accessories

Loose nut coupling, type: LCJ

Applicable outdoor units

  • Monoblock, type: CGW-M
  • Monoblock, type: CGW-M SG

Articles

Article selection assistant
Diameter [mm]
Airflow range [m³/h]
Factory setpoint [m³/h]
Article number Type Diameter [mm] Airflow range [m³/h] Factory setpoint [m³/h] E-shop
B020102080015 KVR-R Ø80 15m³/h 80 15 - 50 15
B020102080025 KVR-R Ø80 25m³/h 80 15 - 50 25
B020102080030 KVR-R Ø80 30m³/h 80 15 - 50 30
B020102080045 KVR-R Ø80 45m³/h 80 15 - 50 45
B020102080050 KVR-R Ø80 50m³/h 80 15 - 50 50
B020102100015 KVR-R Ø100 15m³/h 100 15 - 50 15
B020102100025 KVR-R Ø100 25m³/h 100 15 - 50 25
B020102100030 KVR-R Ø100 30m³/h 100 15 - 50 30
B020102100045 KVR-R Ø100 45m³/h 100 15 - 50 45
B020102100050 KVR-R Ø100 50m³/h 100 15 - 50 50
B020102100060 KVR-R Ø100 60m³/h 100 51 - 100 60
B020102100075 KVR-R Ø100 75m³/h 100 51 - 100 75
B020102100090 KVR-R Ø100 90m³/h 100 51 - 100 90
B020102100100 KVR-R Ø100 100m³/h 100 51 - 100 100
B020102125015 KVR-R Ø125 15m³/h 125 15 - 50 15
B020102125025 KVR-R Ø125 25m³/h 125 15 - 50 25
B020102125030 KVR-R Ø125 30m³/h 125 15 - 50 30
B020102125045 KVR-R Ø125 45m³/h 125 15 - 50 45
B020102125050 KVR-R Ø125 50m³/h 125 15 - 50 50
B020102125060 KVR-R Ø125 60m³/h 125 51 - 100 60
B020102125075 KVR-R Ø125 75m³/h 125 51 - 100 75
B020102125090 KVR-R Ø125 90m³/h 125 51 - 100 90
B020102125100 KVR-R Ø125 100m³/h 125 51 - 100 100
B020102125120 KVR-R Ø125 120m³/h 125 101 - 180 120
B020102125150 KVR-R Ø125 150m³/h 125 101 - 180 150
B020102125180 KVR-R Ø125 180m³/h 125 101 - 180 180
B020102150050 KVR-R Ø150 50m³/h 150 15 - 50 50
B020102150100 KVR-R Ø150 100m³/h 150 51 - 100 100
B020102150120 KVR-R Ø150 120m³/h 150 101 - 180 120
B020102150150 KVR-R Ø150 150m³/h 150 101 - 180 150
B020102150180 KVR-R Ø150 180m³/h 150 101 - 180 180
B020102150210 KVR-R Ø150 210m³/h 150 181 - 300 210
B020102150240 KVR-R Ø150 240m³/h 150 181 - 300 240
B020102150250 KVR-R Ø150 250m³/h 150 181 - 300 250
B020102150270 KVR-R Ø150 270m³/h 150 181 - 300 270
B020102150300 KVR-R Ø150 300m³/h 150 181 - 300 300
B020102160050 KVR-R Ø160 50m³/h 160 15 - 50 50
B020102160100 KVR-R Ø160 100m³/h 160 51 - 100 100
B020102160120 KVR-R Ø160 120m³/h 160 101 - 180 120
B020102160150 KVR-R Ø160 150m³/h 160 101 - 180 150
B020102160180 KVR-R Ø160 180m³/h 160 101 - 180 180
B020102160210 KVR-R Ø160 210m³/h 160 181 - 300 210
B020102160240 KVR-R Ø160 240m³/h 160 181 - 300 240
B020102160250 KVR-R Ø160 250m³/h 160 181 - 300 250
B020102160270 KVR-R Ø160 270m³/h 160 181 - 300 270
B020102160300 KVR-R Ø160 300m³/h 160 181 - 300 300
B020102200180 KVR-R Ø200 180m³/h 200 101 - 180 180
B020102200210 KVR-R Ø200 210m³/h 200 181 - 300 210
B020102200240 KVR-R Ø200 240m³/h 200 181 - 300 240
B020102200250 KVR-R Ø200 250m³/h 200 181 - 300 250
B020102200270 KVR-R Ø200 270m³/h 200 181 - 300 270
B020102200300 KVR-R Ø200 300m³/h 200 181 - 300 300
B020102200350 KVR-R Ø200 350m³/h 200 301 - 500 350
B020102200400 KVR-R Ø200 400m³/h 200 301 - 500 400
B020102200450 KVR-R Ø200 450m³/h 200 301 - 500 450
B020102200500 KVR-R Ø200 500m³/h 200 301 - 500 500
B020102250300 KVR-R Ø250 300m³/h 250 181 - 300 300
B020102250350 KVR-R Ø250 350m³/h 250 301 - 500 350
B020102250400 KVR-R Ø250 400m³/h 250 301 - 500 400
B020102250450 KVR-R Ø250 450m³/h 250 301 - 500 450
B020102250500 KVR-R Ø250 500m³/h 250 301 - 500 500
B020102250550 KVR-R Ø250 550m³/h 250 501 - 700 550
B020102250600 KVR-R Ø250 600m³/h 250 501 - 700 600
B020102250650 KVR-R Ø250 650m³/h 250 501 - 700 650
B020102250700 KVR-R Ø250 700m³/h 250 501 - 700 700
=> Stock product central warehouse, except sales
=> Stock product local warehouses, except sales

The antifreeze valve allows drainage of the medium in the circuit when the circuit temperature reaches a value of 3°C.

Configuration

A: 1 1/4"
B: 59mm
C: 83mm
D: 36mm
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