Installation
3.Install the drain plug, (if no drain is used) or ensure the drain shutoff valve is closed.
4.While filling the chiller system with solution, vent the air from the system at the highest points.
NOTICE
To prevent possible damage to the equipment, do not use untreated or improperly treated water in the system.
Field Installed Power Wiring
An overall dimensional layout for the field installed wiring entrance into the unit is illustrated in Figure 3 to Figure 8. To insure that the unit’s supply power wiring is properly sized and installed, follow the guidelines outlined below.
Note: Ensure the water drain shutoff valve is closed.
Verify that the power supply available is compatible with the unit’s nameplate ratings. The available supply power must be within 10% of the rated voltage stamped on the nameplate.
NOTICE
Use only copper conductors to connect the
Disconnect Switch External Handle (Factory Mounted Option)
Units ordered with the factory mounted nonfused disconnect switch comes equipped with an externally mounted handle. This allows the operator to disconnect power from the unit without having to open the control panel door. The handle locations and its three positions are shown below;
“ON” - Indicates that the disconnect switch is closed, allowing the main power supply to be applied at the unit.
“OFF” - Indicates that the disconnect switch is open, interrupting the main power supply to the unit controls.
“OPEN COVER/RESET” - Turning the handle to this position releases the handle form the disconnect switch, allowing the control panel door to be opened.
Once the door has been opened, it can be closed with the handle in any one of the three positions outlined above, provided it matches the disconnect switch position.
The handle can be locked in the “OFF” position. While holding the handle in the “OFF” position, push the spring loaded thumb key, attached to the handle, into the base slot. Place the lock shackle between the handle and the thumb key. This will prevent it from springing out of position.
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