MCAC-2008-11 Air-cooled Modular Chiller
40
Water Quality
The demanded quality of the water used by system is shown as follows:
The freezing point and the boiling point of the glycol liquor(The consistency of glycol for preventing
freezing)
poidometer
5 10 15 20 25 30 35 40
Liquor
Consistency%
volumenometer 4.4
8.9
13.6 18.1 22.9 27.7 32.6 37.5
freezing point
℃
-1.4 -3.2 -5.4 -7.8 -10.7 -14.1 -17.9 -22.3
boiling point(100.7kpa)
℃
100.6 101.1 101.7 102.2 103.3 104.4 105.0 105.6
The following is the standard of water quality:
PH value:
6.5
～
8.0
Total rigidity:
<50ppm
Conductivity: <200
μ
V/cm (25 )
℃
Sulfur
hydronium: None
Chlorine hydronium:
<50ppm
Ammonia hydronium:
None
Vitriol hydronium:
<50ppm
Xi:
<30ppm
Iron thickness
<0.3ppm
Natrium hydronium:
None
Calcium hydronium:
<50ppm
Relationship of water quality, furring and causticity
Water quality
Furring
Causticity
Remark
1 PH
≤
6 acidic water
Hard
Big
Hard C
a
SO
4
will be built easily
2 PH
≥
8 acidic water
Soft
--------
Soft deposit with Fe
3+
&Cl
-
will be
made.
3
Water of Ca
2+
, Mg
2+
Hard
--------
Hard furring will be built easily.
4
Water of Cl
-
Dirt
resultant
Very
strong
Causticity will be very strong
special for iron and copper.
5
Water of SO
4
2-
, SiO
2
2-
Hard
Big
Hard C
a
SO
4
& C
a
SO
2
will be built
easily
6
Water of Fe
3+
Hard &
Dirt
l
Big
Deposit of Fe(OH)
3
& Fe
2
O
3
-
will
be made.
7 Feculent
water
Dirt
resultant
Very
strong
Causticity will be very strong for
copper.
8
Organic compound of water
Dirt
resultant
--------
Furring will be built easily.
9
Water of exhaust gas
--------
Big
Copper pipe will be causticized
and perforated
10 Water of plastic dust
Dirt
resultant
-------- --------
11 Water of sulfurous acid gas in atmosphere
--------
Very
strong
--------
12
Water interfused by natural effects of pollution, for ex.
humidity nearby sea or hexapod body of garden belt
Dirt
resultant
Big --------
Summary of Contents for MGA-D30W/SN1
Page 23: ...MCAC 2008 11 Air cooled Modular Chiller 23 10 Exploded View 10 1 MGA F30W SN1...
Page 25: ...MCAC 2008 11 Air cooled Modular Chiller 25 10 2 MGA F65W SN1...
Page 27: ...MCAC 2008 11 Air cooled Modular Chiller 27 10 3 MGA D30W SN1...
Page 38: ...MCAC 2008 11 Air cooled Modular Chiller 38 Reference figure of water system installation...
