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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]
Hydraulic connection
Article number Type Cooling capacity [kW] Heating Capacity* [kW] Hydraulic connection E-shop
J036151900001 Romeo-ECM-1M-NC/L/2P 0.70 0.87 Left
J036151900002 Romeo-ECM-2M-NC/L/2P 1.49 1.77 Left
J036151900003 Romeo-ECM-3M-NC/L/2P 2.04 2.34 Left
J036151900004 Romeo-ECM-4M-NC/L/2P 2.53 2.78 Left
J036151900005 Romeo-ECM-5M-NC/L/2P 2.84 3.12 Left
J036151900006 Romeo-ECM-6M-NC/L/2P 3.19 3.60 Left
J036151901001 Romeo-ECM-1M-NC/R/2P 0.70 0.87 Right
J036151901002 Romeo-ECM-2M-NC/R/2P 1.49 1.77 Right
J036151901003 Romeo-ECM-3M-NC/R/2P 2.04 2.34 Right
J036151901004 Romeo-ECM-4M-NC/R/2P 2.53 2.78 Right
J036151901005 Romeo-ECM-5M-NC/R/2P 2.84 3.12 Right
J036151901006 Romeo-ECM-6M-NC/R/2P 3.19 3.60 Right
J036151910001 Romeo-ECM-1M-RC/L/2P 0.70 0.87 Left
J036151910002 Romeo-ECM-2M-RC/L/2P 1.49 1.77 Left
J036151910003 Romeo-ECM-3M-RC/L/2P 2.04 2.34 Left
J036151910004 Romeo-ECM-4M-RC/L/2P 2.53 2.78 Left
J036151910005 Romeo-ECM-5M-RC/L/2P 2.84 3.12 Left
J036151910006 Romeo-ECM-6M-RC/L/2P 3.19 3.60 Left
J036151911001 Romeo-ECM-1M-RC/R/2P 0.70 0.87 Right
J036151911002 Romeo-ECM-2M-RC/R/2P 1.49 1.77 Right
J036151911003 Romeo-ECM-3M-RC/R/2P 2.04 2.34 Right
J036151911004 Romeo-ECM-4M-RC/R/2P 2.53 2.78 Right
J036151911005 Romeo-ECM-5M-RC/R/2P 2.84 3.12 Right
J036151911006 Romeo-ECM-6M-RC/R/2P 3.19 3.60 Right
J036151920001 Romeo-ECM-1M-RC/TD/L/2P 0.70 0.87 Left
J036151920002 Romeo-ECM-2M-RC/TD/L/2P 1.49 1.77 Left
J036151920003 Romeo-ECM-3M-RC/TD/L/2P 2.04 2.34 Left
J036151920004 Romeo-ECM-4M-RC/TD/L/2P 2.53 2.78 Left
J036151920005 Romeo-ECM-5M-RC/TD/L/2P 2.84 3.12 Left
J036151920006 Romeo-ECM-6M-RC/TD/L/2P 3.19 3.60 Left
J036151921001 Romeo-ECM-1M-RC/TD/R/2P 0.70 0.87 Right
J036151921002 Romeo-ECM-2M-RC/TD/R/2P 1.49 1.77 Right
J036151921003 Romeo-ECM-3M-RC/TD/R/2P 2.04 2.34 Right
J036151921004 Romeo-ECM-4M-RC/TD/R/2P 2.53 2.78 Right
J036151921005 Romeo-ECM-5M-RC/TD/R/2P 2.84 3.12 Right
J036151921006 Romeo-ECM-6M-RC/TD/R/2P 3.19 3.60 Right
J036151930001 Romeo-ECM-1M-RC/TD/App/L/2P 0.70 0.87 Left
J036151930002 Romeo-ECM-2M-RC/TD/App/L/2P 1.49 1.77 Left
J036151930003 Romeo-ECM-3M-RC/TD/App/L/2P 2.04 2.34 Left
J036151930004 Romeo-ECM-4M-RC/TD/App/L/2P 2.53 2.78 Left
J036151930005 Romeo-ECM-5M-RC/TD/App/L/2P 2.84 3.12 Left
J036151930006 Romeo-ECM-6M-RC/TD/App/L/2P 3.19 3.60 Left
J036151931001 Romeo-ECM-1M-RC/TD/App/R/2P 0.70 0.87 Right
J036151931002 Romeo-ECM-2M-RC/TD/App/R/2P 1.49 1.77 Right
J036151931003 Romeo-ECM-3M-RC/TD/App/R/2P 2.04 2.34 Right
J036151931004 Romeo-ECM-4M-RC/TD/App/R/2P 2.53 2.78 Right
J036151931005 Romeo-ECM-5M-RC/TD/App/R/2P 2.84 3.12 Right
J036151931006 Romeo-ECM-6M-RC/TD/App/R/2P 3.19 3.60 Right
Prices right version = prices left version

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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