LG Hydro Kit, Руководство по установке

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Installation
24 Hydro Kit
Freezing protection
• For Medium Temperature
In areas of the country where entering water temperatures drop below 15 ℃(59 ℉), the water pipe
must be protected by using an approved antifreeze solution. Consult your
Hydro Kit
unit supplier for
locally approved solutions in your area. Calculate the approximate volume of water in the system.
(Except the
Hydro Kit
unit.) And add antifreeze solution to the total volume to allow for the water
contained in Hydro Kit unit.
CAUTION
• If the unit is installed at existing hydraulic water loop, it is important to clean hydraulic pipes to
remove sludge and scale.
• Installing sludge strainer in the water loop is very important to prevent performance degrade.
• Chemical treatment to prevent rust should be performed by installer.
!
CAUTION
1. Use only one of the above antifreeze.
2. If a antifreeze is used, pressure drop and capability degradation of the system can occur.
3. If one of antifreezes is used, corrosion can occur. So please add corrosion inhibitor.
4. Please check the concentration of the antifreeze periodically to keep same concentration.
5. When the antifreeze is used (for installation or operation), take care to ensure that antifreeze
must not be touched.
6. Ensure to respect all laws and norms of your country about Anti-freeze usage.
7. When hydro kit is applied for cooling, the antifreeze must be added in the water circuit to
prevent freezing.
8. Set the DIP S/W and short key to Anti Freeze mode only after the addition of brine(Anti-freeze).
Or else the product may get damage due to freezing and bursting.
!
WARNING
Do not add brine(Anti-freeze) to the water circuit when it is used for hot water.
!
Type of Antifreeze
Minimum Temperature for Freeze Protection
15 ℃(59 ℉) ~ -5 °C(23 °F) -10 ℃(14 ℉) -15 ℃(5 ℉) -20 ℃(-4 ℉) -25 ℃(-13 ℉)
Ethylene glycol 12 % 20 % 30 % - -
Propylene glycol 17 % 25 % 33 % - -
Methanol 6 % 12 % 16 % 24 % 30 %
• For High Temperature
In areas of the country where entering water temperatures drop below 0 ℃(32 ℉), the water pipe must
be protected by using an approved antifreeze solution. Consult your
Hydro Kit unit supplier for
locally approved solutions in your area. Calculate the approximate volume of water in the system.
(Except the
Hydro Kit
unit.) And add antifreeze solution to the total volume to allow for the water
contained in Hydro Kit unit.
Type of Antifreeze
Minimum Temperature for Freeze Protection
0 ℃(32 ℉) -5 ℃(23 ℉) -10 ℃(14 ℉) -15 ℃(5 ℉) -20 ℃(-4 ℉) -25 ℃(-13 ℉)
Ethylene glycol 0 % 12 % 20 % 30 % - -
Propylene glycol 0 % 17 % 25 % 33 % - -
Methanol 0 % 6 % 12 % 16 % 24 % 30 %