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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
Type
Cooling capacity [kW]
Heating Capacity* [kW]
# pipes
AC or EC engine
Horizontal or vertical
Hydraulic connection
Article number Type Cooling capacity [kW] Heating Capacity* [kW] # pipes AC or EC engine Horizontal or vertical Hydraulic connection E-shop
J035531012010 UTV-ECM-10/L/2P 3.83 5.02 2 EC Vertical Left
J035531012020 UTV-ECM-20/L/2P 7.05 8.61 2 EC Vertical Left
J035531012030 UTV-ECM-30/L/2P 9.2 11.3 2 EC Vertical Left
J035531012040 UTV-ECM-40/L/2P 10.6 12.94 2 EC Vertical Left
J035531012050 UTV-ECM-50/L/2P 13.1 16.99 2 EC Vertical Left
J035531012060 UTV-ECM-60/L/2P 27.8 32.9 2 EC Vertical Left
J035531012070 UTV-ECM-70/L/2P 50.55 60.9 2 EC Vertical Left
J035531013010 UTV-ECM-10/R/2P 3.83 5.02 2 EC Vertical Right
J035531013020 UTV-ECM-20/R/2P 7.05 8.61 2 EC Vertical Right
J035531013030 UTV-ECM-30/R/2P 9.2 11.3 2 EC Vertical Right
J035531013040 UTV-ECM-40/R/2P 10.6 12.94 2 EC Vertical Right
J035531013050 UTV-ECM-50/R/2P 13.1 16.99 2 EC Vertical Right
J035531013060 UTV-ECM-60/R/2P 27.8 32.9 2 EC Vertical Right
J035531013070 UTV-ECM-70/R/2P 50.55 60.9 2 EC Vertical Right
J035531014110 UTV-ECM-10/L/4P 3.6 4.18 4 EC Vertical Left
J035531014120 UTV-ECM-20/L/4P 7.00 7.01 4 EC Vertical Left
J035531014130 UTV-ECM-30/L/4P 9.01 9.16 4 EC Vertical Left
J035531014140 UTV-ECM-40/L/4P 9.57 10.60 4 EC Vertical Left
J035531014150 UTV-ECM-50/L/4P 13.63 12.65 4 EC Vertical Left
J035531014160 UTV-ECM-60/L/4P 24.95 38.85 4 EC Vertical Left
J035531014170 UTV-ECM-70/L/4P 45.55 70.15 4 EC Vertical Left
J035531015020 UTV-ECM-20/R/4P 7.00 7.01 4 EC Vertical Right
J035531015030 UTV-ECM-30/R/4P 9.01 9.16 4 EC Vertical Right
J035531015040 UTV-ECM-40/R/4P 9.57 10.60 4 EC Vertical Right
J035531015060 UTV-ECM-60/R/4P 24.95 38.85 4 EC Vertical Right
J035531015070 UTV-ECM-70/R/4P 45.55 70.15 4 EC Vertical Right
J035531022020 UTC-ECM-20/L/2P 7.05 8.61 2 EC Horizontal Left
J035531022030 UTC-ECM-30/L/2P 9.20 11.33 2 EC Horizontal Left
J035531022040 UTC-ECM-40/L/2P 10.60 12.94 2 EC Horizontal Left
J035531022050 UTC-ECM-50/L/2P 13.10 16.99 2 EC Horizontal Left
J035531022060 UTC-ECM-60/L/2P 27.80 32.91 2 EC Horizontal Left
J035531022070 UTC-ECM-70/L/2P 50.55 60.90 2 EC Horizontal Left
J035531023010 UTC-ECM-10/L/4P 3.60 4.18 4 EC   Left
J035531023020 UTC-ECM-20/R/2P 7.05 8.61 2 EC Horizontal Right
J035531023030 UTC-ECM-30/R/2P 9.20 11.33 2 EC Horizontal Right
J035531023040 UTC-ECM-40/R/2P 10.60 12.94 2 EC Horizontal Right
J035531023050 UTC-ECM-50/R/2P 13.10 16.99 2 EC Horizontal Right
J035531023060 UTC-ECM-60/R/2P 27.80 32.91 2 EC Horizontal Right
J035531023070 UTC-ECM-70/R/2P 50.55 60.90 2 EC Horizontal Right
J035531032010 UTV-ECM-10/R/4P 3.6 4.18 4 EC Horizontal Right
J035531032020 UTC-ECM-20/L/4P 7 7.01 4 EC Horizontal Left
J035531032030 UTC-ECM-30/L/4P 9.01 9.16 4 EC Horizontal Left
J035531032040 UTC-ECM-40/L/4P 9.57 10.60 4 EC Horizontal Left
J035531032050 UTC-ECM-50/L/4P 13.63 12.65 4 EC Horizontal Left
J035531032060 UTC-ECM-60/L/4P 24.95 38.85 4 EC Horizontal Left
J035531032070 UTC-ECM-70/L/4P 45.55 70.15 4 EC Horizontal Left
J035531033010 UTC-ECM-10/R/4P 3.60 4.18 4 EC Horizontal Right
J035531033020 UTC-ECM-20/R/4P 7 7.01 4 EC Horizontal Right
J035531033030 UTC-ECM-30/R/4P 9.01 9.16 4 EC Horizontal Right
J035531033040 UTC-ECM-40/R/4P 9.57 10.60 4 EC Horizontal Right
J035531033050 UTC-ECM-50/R/4P 13.63 12.65 4 EC Horizontal Right
J035531033060 UTC-ECM-60/R/4P 24.95 38.85 4 EC Horizontal Right
J035531033070 UTC-ECM-70/R/4P 45.55 70.15 4 EC Horizontal Right

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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