Daikin EHY2KOMB28AA — руководство по установке и использованию гликоля в системах отопления [86/236]

Daikin EHY2KOMB28AA [86/236] Installation
9 | Installation
Installer reference guide
86
EJHA04AAV3 + EHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P531180-1B – 2020.02
Lowest expected outdoor
temperature
Prevent from bursting Prevent from freezing
–15°C 20% 35%
–20°C 25%
–25°C 30%
–30°C 35%
NOTICE
The required concentration might differ depending on the type of glycol. ALWAYS
compare the requirements from the table above with the specifications provided
by the glycol manufacturer. If necessary, meet the requirements set by the glycol
manufacturer.
The added concentration of glycol should NEVER exceed 35%.
If the liquid in the system is frozen, the pump will NOT be able to start. Mind that
if you only prevent the system from bursting, the liquid inside might still freeze.
When water is at standstill inside the system, the system is very likely to freeze
and get damaged.
The types of glycol that can be used depend on whether the system contains a
domestic hot water tank:
If… Then…
The system contains a domestic hot
water tank
Only use propylene glycol
(a)
The system does NOT contain a
domestic hot water tank
You can use either propylene glycol
(a)
or
ethylene glycol
(a)
Propylene glycol, including the necessary inhibitors, classified as CategoryIII according to
EN1717.
WARNING
Ethylene glycol is toxic.
NOTICE
Glycol absorbs water from its environment. Therefore do NOT add glycol that has
been exposed to air. Leaving the cap off the glycol container causes the
concentration of water to increase. The glycol concentration is then lower than
assumed. As a result, the hydraulic components might freeze up after all. Take
preventive actions to ensure a minimal exposure of the glycol to air.

Содержание

Узнайте, как правильно использовать гликоль в системах отопления для предотвращения замерзания и повреждений. Важные рекомендации и предупреждения.

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