Water Quality; Installation Check & Request For Startup - Yazaki AROACE Installation Instructions Manual

WATER QUALITY

Water used in the chilled water,
cooling water, and heat medium circuits
may cause scaling and/or corrosion if not
correctly maintained within specific limits.
In some areas, the water supply may
contain minerals that cause scaling or
may be extremely soft and corrosive.
Where these conditions exist, a water
ITEM
pH (at 77°F)
Conductivity (S/cm at 77°F)
-
Chloride ion (Cl ppm)
2-
Sulfate ion (SO
4
M-alkalinity (CaCO
Total hardness (CaCO
Calcium hardness (CaCO
Ionic silica (SiO ppm)
2
Total iron (Fe ppm)
Copper (Cu ppm)
2-
Sulfide ion (S ppm)
Ammonium ion (NH
Residual chlorine (Cl ppm)
Free carbon dioxide (CO
Ryzner stability index
NOTES:
1. ND (Not Detectable)
2. *Maximum total hardness of make-up water shall not exceed 70 ppm when bleed off is the only method used to control water
quality.
INSTALLATION CHECK & REQUEST FOR STARTUP
After the absorption chiller has been
installed, piped, and wired as described
in these instructions, but before any
attempt is made to start the unit, the
Yazaki Authorized
should be advised so that the startup can
be scheduled. Complete the REQUEST
FOR STARTUP form and send it to the
CHILLED
WATER
6.8 - 8.0
ppm)
ppm)
3
ppm)
3
ppm)
3
+
ppm)
4
ppm)
2
Table 5 – Water Quality
Service Provider
treatment company should be consulted.
If the absorption chiller is damaged as a
result of scaling, corrosion, or erosion
caused by poor water quality control, the
equipment warranty may be void. Water
quality should not exceed the following
limits:
COOLING
WATER
6.5 - 8.2
400 800
50 200
50 200
50 100
70 200*
50 150
30 50
1.0 1.0
1.0 0.3
ND ND
1.0 1.0
0.3 0.3
4.0 4.0
- 6.0 - 7.0
ASP or to Yazaki Energy Systems, Inc.,
at least 3 weeks prior to the required
startup date.
The contractor is expected to provide
personnel to assist the ASP with final
adjustments to the system controls and
fluid flow rates as may be necessary.
14
HEAT
MAKE-UP
MEDIUM
WATER
7.0 – 8.0
6.8 - 8.0
300 300
30 50
30 50
50 50
70 70*
50 50
30 30
1.0 0.3
1.0 0.1
ND ND
0.1 0.1
0.1 0.3
0.4 4.0
- -