EMW90HDNC1A Air-cooled Chiller
Operation steps for replacing coolant in the chiller
are as follows:
1. Cut off the power and wait at least 10
2. Use a drain hose with a quick connector to
3. Open the ball valves at the coolant drain port
to drain the coolant to the coolant storage
tank. After draining, close the valve and
remove the drain pipe.
Ethylene glycol is a substance that pollutes
groundwater, so the equipment operator must abide
by the relevant national and local regulations, and
may not discharge it at will.
4. Remove the filter element of the filter for
cleaning or replacement.
For details, see 7.4.3Replacing the
Electrical Heater and Circulation Pump.
5. Add the coolant, check the PH value and
electrolyte concentration of the coolant.
For details, see 5 Coolant Filling and
Replenishment.
6. After the coolant replenishment is completed,
close the ball valve at the coolant filling port
and remove the pipe.
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