27
2) Applicable standard of water quality for the unit
Table 8-9
PH value
6.8~8.0
Sulfate
<50ppm
Total hardness
<70ppm
Silicon
<30ppm
Conductivity
<200μV/cm (25°C)
Iron content
<0.3ppm
Sulfide ion
No
Sodium ion
No requirement
Chloride ion
<50ppm
Calcium ion
<50ppm
Ammonia ion
No
/
/
8.6.9 Installation of multi-module water system pipeline
Multi-module combination installation involves special design of the unit, so relevant explanation is given as follows.
1) Installation mode of multi-module combination water system pipeline
No.n module
No. (n-1)address
No.1 module
No.0 address
No.(n-1) module
No.(n-2) address
Pump
Drill dead hole at the position,
and move the total euent
temperature sensor at No.0
address to the position
Fig.8-24 Installation of multi-module (no more than 16 modules)
2) Table of diameter parameters of main inlet and outlet pipes
Table 8-10
Cooling capacity
Total inlet and outlet water pipe inside nominal diameter
15≤Q≤30
DN40
30
＜
Q≤90
DN50
90
＜
Q≤130
DN65
130
＜
Q≤210
DN80
210
＜
Q≤325
DN100
325
＜
Q≤510
DN125
510
＜
Q≤740
DN150
740
＜
Q≤1300
DN200
1300
＜
Q≤2080
DN250
CAUTION
• Please pay attention to the following items when installing multiple modules:
- Each module corresponds to an address code which cannot be repeated.
- Main water outlet temperature sensing bulb, target flow controller and auxiliary electric heater are under control
of the main module.
- One wired controller and one target flow controller are required and connected on the main module.
- The unit can be started up through the wired controller only after all addresses are set and the aforementioned
items are determined. The wired controller is ≤500m away from the outdoor unit.
