Daikin ZUWV - Page 39

SINGLE SCREW CHILLERS IMM
Engineered for Flexibility and Performance 35
See water quality indexes in the following table:
Item
Chiller
Baseline
Value
Item
Corrosion
Scaling
Baseline Items
pH(25°C)
—
6.5-8.0
O
O
Electrical
Conductivity(25°C)
S/cm
<800
O
O
Chloride Ion
Cl

mg(
Cl

)/L
<200
O
Sulfate Ion
2
4
SO

mg
2
4
SO

/L
<200
O
Acid Consumption
(pH=4.8)
mg(
3
CaCO
)/L
<100
O
Total Harness
mg(
3
CaCO
)/L
<200
O
Reference
Items
Ferrum Fe
mg(Fe)/L
<1.0
O
O
Sulphion
2
S

mg(
2
S

)/L
Not
Detected
O
Ammonium Ion
NH

mg(
NH

)/L
<1.0
O
Silicon Oxide
2
SiO
mg(
2
SiO
)/L
<50
O
Notes:
1. water quality requirement refers to GB/T18430.1-2007 Water chilling(heat pump)
packages using the vapor compression cycle—Part 1:Water chilling (heat pump)
packages for industrial & commercial and similar application, appendix D cooling
water quality.
2. Sign “O” shows possible harmfulness of corrosion and fouling.
3. If water quality can’t meet the requirements showed above, please handle the water
according to GB50050-2007 Code for design of industrial recirculating cooling water
treatment
We recommend you add water process device and contact Daikin professional servicer
to deal with it.