Daikin EWAD740-C19C-XR - Page 82

General Outline ESIE10-01
1–76 Part 1 – System Outline
3
11
4
5
1.26 Water Charge, Flow and Quality
Items
(1)(5)
Cooling Water
Cooled Water
Circulating System Once Flow
Circulating
water
Supply
water
(4)
Flowing
water
Circulating
water
[Below 20°C]
Supply
water
(4)
Items to be controlled
pH at 25°C 6.5~8.2 6.0~8.0 6.0~8.0 6.0~8.0 6.0~8.0
Electrical conductivity [mS/m] at 25°C Below 80 Below 30 Below 40 Below 40 Below 30
(
μS/cm) at 25°C
(Below 800) (Below 300) (Below 400) (Below 400) (Below 300)
Chloride ion [mgCl2-/l] Below 200 Below 50 Below 50 Below 50 Below 50
Sulfate ion [mgSO2-4/l] Below 200 Below 50 Below 50 Below 50 Below 50
M-alkalinity (pH4.8) [mgCaCO3/l] Below 100 Below 50 Below 50 Below 50 Below 50
Total hardness [mgCaCO3/l] Below 200 Below 70 Below 70 Below 70 Below 70
Calcium hardness [mgCaCO3/l] Below 150 Below 50 Below 50 Below 50 Below 50
Items to be referred to
Silca ion [mgSiO2/l] Below 50 Below 30 Below 30 Below 30 Below 30
Iron [mgFe/l] Below 1.0 Below 0.3 Below 1.0 Below 1.0 Below 0.3
Copper [mgCu/l] Below 0.3 Below 0.1 Below 1.0 Below 1.0 Below 1.0
Sulfite ion [mgS2-/l] Not
detectable
Not
detectable
Not
detectable
Not
detectable
Not
detectable
Ammonium ion [mgNH+4/l] Below 1.0 Below 1.0 Below 1.0 Below 1.0 Below 1.0
Remaining chloride [mgCL/l] Below 0.3 Below 0.3 Below 0.3 Below 0.3 Below 0.3
Free carbide [mgCO2/l] Below 4.0 Below 4.0 Below 4.0 Below 4.0 Below 4.0
Stability index 6.0~7.0
Items
(1)(5)
Heated water
(2)
Tendency if out
of criteria
Low temperature High temperature
Circulating
water
[20°C~60°C]
Supply
water
(4)
Circulating
water
[20°C~60°C]
Supply
water
(4)
Items to be controlled
pH at 25°C 7.0~8.0 7.0~8.0 7.0~8.0 7.0~8.0 Corrosion + Scale
Electrical
conductivity
[mS/m] at 25°C Below 30 Below 30 Below 30 Below 30 Corrosion + Scale
(
μS/cm) at
25°C
(Below 300) (Below 300) (Below 300) (Below 300) Corrosion + Scale
Chloride ion [mgCl2-/l] Below 50 Below 50 Below 30 Below 30 Corrosion
Sulfate ion [mgSO2-4/l] Below 50 Below 50 Below 30 Below 30 Corrosion
M-alkalinity (pH4.8) [mgCaCO3/l] Below 50 Below 50 Below 50 Below 50 Scale
Total hardness [mgCaCO3/l] Below 70 Below 70 Below 70 Below 70 Scale
Calcium hardness [mgCaCO3/l] Below 50 Below 50 Below 50 Below 50 Scale
Items to be referred to
Silca ion [mgSiO2/l] Below 30 Below 30 Below 30 Below 30 Scale
Iron [mgFe/l] Below 1.0 Below 0.3 Below 1.0 Below 0.3 Corrosion + Scale
Copper [mgCu/l] Below 1.0 Below 0.1 Below 1.0 Below 0.1 Corrosion
Sulfite ion [mgS2-/l] Not detecta-
ble
Not detecta-
ble
Not detecta-
ble
Not detecta-
ble
Corrosion
Ammonium ion [mgNH+4/l] Below 0.3 Below 0.1 Below 0.1 Below 0.1 Corrosion
Remaining chloride [mgCL/l] Below 0.25 Below 0.3 Below 0.1 Below 0.3 Corrosion
Free carbide [mgCO2/l] Below 0.4 Below 4.0 Below 0.4 Below 4.0 Corrosion
Stability index Corrosion + Scale