Envicool EMW90HDNC1U - Reference; Barcode; Coolant Specifications

User Manual
8 Reference
44
EMW90HDNC1U Air-cooled Chiller
8 Reference
8.1 Barcode
Figure 8-1 shows a barcode example for an air
conditioner.
Figure 8-1 Air conditioner barcode sample

The first 13 digits: customized by the
manufacturer (M019048004500).

14th~18th digits: production date, for example,
21621 means June 21, 2021. A/B/C means
October/November/December.

The last 4 digits: the serial number of this batch
of products.
8.2 Coolant Specifications
The specifications of the coolant used in the
air-cooled chiller must meet the requirements of
Table 8-1.
Table 8-1 Coolant specifications
Parameter Value
PH (7) 7.5-8.5
Conductivity 200-1000 μS/cm
Evaporation
residue
< 500 mg/dm³
Sedimentary
material
< 3 mg/dm³
Hardness
3-8°dH (for
German-speaking regions)
Ca + Mg
0.5-2 mmol/l (for
international regions)
Bicarbonates
1-5 mmol/dm³ (60-300
mg/dm³)
Free carbon
monoxide
< 10 mg/dm³
Sulfide < 0.01 mg/dm³
Chloride < 50 mg/dm³
Parameter Value
Sulfate < 250 mg/dm³
Nitrate < 25 mg/dm³
Nitrite < 0.1 mg/m³
CSB < 7 mg/dm³
NH4 < 0.05 mg/dm³
Fe < 0.1 mg/dm³
Mn < 0.1 mg/dm³
Cu < 0.1 mg/dm