Daikin Altherma 3 H HT F Installer's Reference Manual page 18

3 | Specific installer safety instructions
Installer reference guide
18
WARNING
Due to the presence of glycol, corrosion of the system is possible. Uninhibited glycol
will turn acidic under the influence of oxygen. This process is accelerated by the
presence of copper and high temperatures. The acidic uninhibited glycol attacks
metal surfaces and forms galvanic corrosion cells that cause severe damage to the
system. Therefore it is important that:
▪
the water treatment is correctly executed by a qualified water specialist,
▪
a glycol with corrosion inhibitors is selected to counteract acids formed by the
oxidation of glycols,
▪
no automotive glycol is used because their corrosion inhibitors have a limited
lifetime and contain silicates which can foul or plug the system,
▪
galvanized pipes are NOT used in glycol systems since the presence may lead to
the precipitation of certain components in the glycol's corrosion inhibitor.
WARNING
Ethylene glycol is toxic.
Electrical installation (see
DANGER: RISK OF ELECTROCUTION
WARNING
Electrical wiring connection method MUST be in accordance with the instructions
from:
▪
This manual. See
▪
The wiring diagram of the outdoor unit, which is delivered with the unit, located
at the inside of the service cover. For a translation of its legend, see
diagram: Outdoor
▪
The wiring diagram of the indoor unit, which is delivered with the unit, located on
the inside of the indoor unit switch box cover. For a translation of its legend, see
"16.5 Wiring diagram: Indoor
WARNING
ALWAYS use multicore cable for power supply cables.
WARNING
▪
All wiring MUST be performed by an authorised electrician and MUST comply
with the applicable legislation.
▪
Make electrical connections to the fixed wiring.
▪
All components procured on-site and all electrical construction MUST comply
with the applicable legislation.
"9 Electrical installation" [
4
"9 Electrical installation" [
4
unit" [ 271].
unit" [ 4 276].
4 104])
104].
"16.4 Wiring
EPRA14~18D + ETVH16SU18+23E
Daikin Altherma 3 H HT F
4P644738-1A – 2022.03