Danfoss iC7 Series Installation Manual page 8

Installation Guide | iC7 Series Liquid-cooled L Filter OF7Z5
3 Cooling Requirements
Safety in Liquid-cooling
3.1
POISONOUS COOLANTS
Glycols and inhibitors are poisonous. If touched or consumed, they can cause injury.
Prevent the coolant from getting into the eyes. Do not drink the coolant.
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HOT COOLANT
Hot coolant can cause burns.
Avoid contact with the hot coolant.
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PRESSURIZED COOLING SYSTEM
Sudden release of pressure from the cooling system can cause injury.
Be careful when operating the cooling system.
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INSUFFICIENT COOLING CAPACITY
Insufficient cooling can cause the product to become too hot and thus become damaged.
To make sure that the cooling capacity of the cooling system stays sufficient, make sure that the cooling system is vented and

that the coolant circulates properly.
DAMAGE TO COOLING SYSTEM
If the coolant circulation is stopped too soon, high-temperature components can cause rapid local increase in the coolant
temperature, which can damage the cooling system.
Do not stop the cooling system when stopping the drive. Keep the coolant circulation flowing for 2 minutes after the drive

has been stopped.
General Information on Cooling
3.2
For more detailed information about the requirements for liquid-cooling, see the iC7 Series Liquid-cooled System Modules Design
Guide.
The product is cooled with liquid. The liquid circulation of the drive is usually connected to a heat exchanger (liquid-to-liquid or liquid-to-
air) that cools down the liquid circulating in the cooling elements. The cooling elements are made of aluminum.
If there is no risk of freezing, purified water can be used as coolant. Freezing water permanently damages the cooling system. Purified
water is demineralized, deionized, or distilled water.
The allowed antifreeze coolants are the following ethylene glycols and propylene glycols.
Ethylene glycols: DOWCAL 100 or Clariant Antifrogen N
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Propylene glycols: DOWCAL 200 or Clariant Antifrogen L
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Cooling Requirements
AN447722950367en-000201 / 172K1111B