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EShop-nummer
Wachtwoord
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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
Battery type
Configuration
Type
Size
Article number Battery type Configuration Type Size E-shop Spare parts
I100880000601 BC DIVA SILVERTOP 06 PRE BC DIVA 6
I100880000602 BC LOBBY SILVERTOP 06 PRE BC LOBBY 6
I100880000801 BC DIVA SILVERTOP 08 PRE BC DIVA 8
I100880000802 BC LOBBY SILVERTOP 08 PRE BC LOBBY 8
I100880001501 BC DIVA SILVERTOP 15 PRE BC DIVA 15
I100880001502 BC LOBBY SILVERTOP 15 PRE BC LOBBY 15
I100880001503 BC MAC2 SILVERTOP 15 PRE BC MAC2 15
I100880001504 BC QUATTR SILVERTOP 15 PRE BC QUATTR 15
I100880002301 BC DIVA SILVERTOP 23 PRE BC DIVA 23
I100880002302 BC LOBBY SILVERTOP 23 PRE BC LOBBY 23
I100880002303 BC MAC2 SILVERTOP 23 PRE BC MAC2 23
I100880002304 BC QUATTR SILVERTOP 23 PRE BC QUATTR 23
I100880003501 BC DIVA SILVERTOP 35 PRE BC DIVA 35
I100880003502 BC LOBBY SILVERTOP 35 PRE BC LOBBY 35
I100880003503 BC MAC2 SILVERTOP 35 PRE BC MAC2 35
I100880003504 BC QUATTR SILVERTOP 35 PRE BC QUATTR 35
I100880005201 BC DIVA SILVERTOP 52 PRE BC DIVA 52
I100880005202 BC LOBBY SILVERTOP 52 PRE BC LOBBY 52
I100880005203 BC MAC2 SILVERTOP 52 PRE BC MAC2 52
I100880005204 BC QUATTR SILVERTOP 52 PRE BC QUATTR 52
I100881000601 BE DIVA SILVERTOP 06 PRE BE DIVA 6
I100881000602 BE LOBBY SILVERTOP 06 PRE BE LOBBY 6
I100881000801 BE DIVA SILVERTOP 08 PRE BE DIVA 8
I100881000802 BE LOBBY SILVERTOP 08 PRE BE LOBBY 8
I100881001501 BE DIVA SILVERTOP 15 PRE BE DIVA 15
I100881001502 BE LOBBY SILVERTOP 15 PRE BE LOBBY 15
I100881001503 BE MAC2 SILVERTOP 15 PRE BE MAC2 15
I100881001504 BE QUATTR SILVERTOP 15 PRE BE QUATTR 15
I100881002301 BE DIVA SILVERTOP 23 PRE BE DIVA 23
I100881002302 BE LOBBY SILVERTOP 23 PRE BE LOBBY 23
I100881002303 BE MAC2 SILVERTOP 23 PRE BE MAC2 23
I100881002304 BE QUATTR SILVERTOP 23 PRE BE QUATTR 23
I100881003501 BE DIVA SILVERTOP 35 PRE BE DIVA 35
I100881003502 BE LOBBY SILVERTOP 35 PRE BE LOBBY 35
I100881003503 BE MAC2 SILVERTOP 35 PRE BE MAC2 35
I100881003504 BE QUATTR SILVERTOP 35 PRE BE QUATTR 35
I100881005201 BE DIVA SILVERTOP 52 PRE BE DIVA 52
I100881005202 BE LOBBY SILVERTOP 52 PRE BE LOBBY 52
I100881005203 BE MAC2 SILVERTOP 52 PRE BE MAC2 52
I100881005204 BE QUATTR SILVERTOP 52 PRE BE QUATTR 52

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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