- 36 -
WARNING!
Ethanol is flammable, pay attention to fire prevention and ventilation!
3)
Ethanol explosion limit: 3.5% to 18.0% (volume); open flash point: 13°C.
4)
Users can choose the appropriate secondary refrigerant according to their needs.
5)
It is strictly forbidden to use brine (KCl/H2O, NaCl/H2O, CaCl2/H2O) as a secondary
refrigerant.
6)
The secondary refrigerant should not corrode stainless steel, chromium, and silicone rubber
materials.
2.
Adding secondary refrigerant
The DL-400 liquid storage tank is an open type. Open the upper cover of the liquid filling port and
add secondary refrigerant from the liquid filling port. The liquid level must be higher than the
evaporator coil, and the liquid should be added to the position shown in the figure.
3.
Power connection
1)
Provide power according to the nature of the power required on the equipment nameplate;
2)
The power supply must be reliably grounded.
4.
Startup and parameter setting
Liquid level
Evaporator coil