Johnson Controls Frick IDC2, Руководство по обслуживанию, Страница: 10 / 20

IDC2 EVAPORATIVE CONDENSERS
OPERATION
140.940-IOM (DEC 13)
Page 10
Figure 13 - IDC2 Evaporative Condenser
CAUTION
Mechanical and operational methods must be employed
to protect these products against damage and/or reduced
effectiveness due to possible freeze-up. Please refer to
www.johnsoncontrols.com/frick or contact your local Frick
Representative for recommended protection alternatives.
CAUTION
Pressure greater than 10.0 psig may cause damage to the
distribution system.
GENERAL MAINTENANCE INFORMATION
The services required to maintain a piece of evaporative cooling
equipment are primarily a function of the quality of the air and
water in the locality of the installation:
• Air: The most harmful atmospheric conditions are those with
unusual quantities of industrial smoke, chemical fumes, salt
or heavy dust. Such airborne impurities are carried into the
equipment and absorbed by the recirculating water to form
a corrosive solution.
• Water: The most harmful conditions develop as water
evaporates from the equipment, leaving behind the dissolved
solids originally contained in the makeup water. These dis-
solved solids may be either alkaline or acidic and, as they are
concentrated in the circulating water, can produce scaling or
accelerated corrosion.
The extent of impurities in the air and water determines the
frequency of most maintenance services and also governs the
extent of water treatment which can vary from a simple continu-
ous bleed and biological control to a sophisticated treatment sys-
tem. Refer to “Water Treatment” and “Biological Control” in the
Common Operation & Maintenance Manual for more details.
Axial­Fan
Fan­Guard
Large­Access­
Door
Motor
Motor­Removal­
Davit­(Optional)
Louvers
Fan­Cowl
Coil­Connection:­
Refrigerant­In
Coil
Coil­Connection:­
Refrigerant­Out
Secondary­
Pump­(Optional)
Primary­Pump
Inclined­Ladder­
(Optional)
Cold­Water­
Basin
IBC­Cross­­
Bracing­(Optional)
Terminal­Box­
(Optional)
Adjustable­
Float