Daikin EUWL KZW1 Series Service Manual page 119

ESIE-0303
Water quality The table below contains the required water quality specifications.
Items to be checked
pH at 25°C
Electrical conductivity mS/m
(at 25°C)
Chloride ion
mg Cl
Sulphate ion
mg SO
M-alkalinity (pH 4.8) mg CaCO
Total hardness mg CaCO
Calcium hardness mg CaCO
Silica ion mg SiO
Items to be referred to
Iron mg Fe/l
Copper mg Cu/l
Sulphide ion
mg S
Ammonium ion
mg NH
Remaining chloride mg Cl/l
Free carbide mg CO
Stability index
Part 4 – Commissioning and Test Run
Evaporator water
Circulating Supply water
water (< 20°C)
6.8~8.0 6.8~8.0
< 40 < 30
- < 50 < 50
/l
< 50 < 50
2-
/l
4
/l < 50 < 50
3
/l < 70 < 70
3
/l < 50 < 50
3
/l < 30 < 30
2
< 1.0 < 0.3
< 1.0 < 0.1
2- Not detectable Not detectable
/l
+ < 1.0 < 0.1
/l
4
< 0.3 < 0.3
/l < 4.0 < 4.0
2
– –
Heated water (low temperature)
Circulating water Supply water
(20°C-60°C)
7.0~8.0 7.0~8.0
< 30 < 30
< 50 < 50
< 50 < 50
< 50 < 50
< 70 < 70
< 50 < 50
< 30 < 30
< 1.0 < 0.3
< 1.0 < 0.1
Not detectable Not detectable
< 0.3 < 0.1
< 0.25 < 0.3
< 0.4 < 4.0
– –
Pre-Test Run Checks
Tendency if out of
criteria
Corrosion + scale
Corrosion + scale
Corrosion
Corrosion
Scale
Scale
Scale
4
Scale
Corrosion + scale
Corrosion
Corrosion
Corrosion
Corrosion
Corrosion
Corrosion + scale
4–7
1
3
5