Yazaki AROACE CH-MG150, Руководство по установке

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26
WATER QUALITY
Water used in the chilled/hot water
and cooling 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 treatment
company should be consulted. If the
absorption chiller-heater 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:
ITEM
CHILLED/
HOT WATER
COOLING
WATER
MAKE-UP
WATER
S
tand
ar
d
pH (at 77°F) 6.8 - 8.0 6.5 - 8.2 6.8 - 8.0
Conductivity (

S/cm at 77°F) 400 800 300
Chloride ion (Cl
-
ppm) 50 200 50
Sulfate ion (SO
4
2-
ppm) 50 200 50
M-alkalinity (CaCO
3
ppm) 50 100 50
Total hardness (CaCO
3
ppm) 70 200 70*
Calcium hardness (CaCO
3
ppm) 50 150 50
Ionic silica (SiO
2
ppm) 30 50 30
Ref
er
en
ce
Total iron (Fe ppm) 1.0 1.0 0.3
Copper (Cu ppm) 1.0 0.3 0.1
Sulfide ion (S
2-
ppm) ND ND ND
Ammonium ion (NH
4
+
ppm) 1.0 1.0 0.1
Residual chlorine (Cl ppm) 0.3 0.3 0.3
Free carbon dioxide (CO
2
ppm) 4.0 4.0 4.0
Ryzner stability index - 6.0 - 7.0 -
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.
Table 6
INSTALLATION CHECK & REQUEST FOR STARTUP
After the absorption chiller-heater has
been installed, piped, and wired as
described in these instructions, but
before any attempt is made to start the
unit, the Yazaki Authorized Service
Provider should be advised so that the
startup can be scheduled. Complete the
REQUEST FOR STARTUP form and
send it to the 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.