DA Data Cool Series Installation, Operation And Maintanance Manual - page 20
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The wiring diagram in the evaporator will indicate field interface terminals to the secondary heat exchanger.
The internal wiring of the heat exchanger is found on a separate diagram which can be found on the
inside cover of the heat exchanger electrical box. Both diagram types are also placed inside the shipping/
warranty packet that is placed inside the evaporator.
Evaporator wiring diagrams will have a drawing number which starts out with the three letter designation,
“DCX”. The wiring diagram for the Data Cool is DCX-S-776. Wiring diagrams for the condensing unit
start out with the three letter designation, “DRC”. An example of a typical diagram is DRC-S-001.
Wiring diagrams for fluid coolers start out with the three letter designation, “DFC”. An example of a
typical diagram is DFC-S-001.
7.0 REGULAR MAINTENANCE ITEMS
7.1
Air Filters
Air filters should be checked on a regular basis and changed when they become dirty. This will ensure
efficient operation of the unit. Spare air filters should be kept in stock as these tend to be a frequently
replaced maintenance item. Air filters may require changing as often as monthly. Note also that
construction dust on new installations will quickly clog new filters.
Air filters that require changing can restrict airflow and create problems such as coil icing or
poor air distribution.
7.2
Bearings
Blower bearings used on Data Cool units are permanently lubricated and do not require maintenance.
7.3
Humidifier Canisters
The optional steam generator type humidifier does not require maintenance other than to replace the
canister as required. This frequency will depend on usage and water type. A set of manufacturer’s
instructions for the humidifier is sent as part of the paperwork placed inside the unit when it ships.
7.4
Fuses
Fuses may occasionally require changing especially with installations where the voltage is not consistent.
Drops in voltage can create brief periods of high amp draw, causing fuses to blow. Always replace
fuses with those of the equivalent rating with regard to: 1) amperage, 2) voltage, and 3) speed. For
instance compressors and motors are inductive loads which require time delay fuses. Electric reheat
and humidifiers are resistive loads requiring fast acting fuses.
7.5
Heating Elements
The optional heating elements do not normally require maintenance. However sometimes they may
accumulate a film of dust or dirt when unused for extended periods of time. When energized, the burning
debris can create smoke or unpleasant odor. To help avoid this, periodic cleaning is recommended.