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.
