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724-746-5500 | blackbox.com
Page 16
724-746-5500 | blackbox.com
Chapter 1: Introduction
CAUTION
When filling the water/glycol loop, all air must be bled from the piping system.
WARNING
Do not use chloride-based water-conditioning additives in the condensate drain pans. This will cause corrosion to
occur on the coil fins.
1.5 General Design
The Cold Row DX unit is housed in a steel frame type cabinet rated for indoor use. The exterior of the cabinet is coated with a
powder coat finish to protect against corrosion. Removable access panels are located on the front and rear of the cabinet for easy
access to all components. Operator controls are conveniently located on the front of the cabinet.
NOTE: Customer-specified non-standard features or design variations may not be described in this manual. Refer to the installation
and/or electrical drawings supplied with your unit for details of additional feature(s). In some cases, an addendum to this
manual may also be included to further describe the feature(s).
Figure 1-2 depicts a typical internal layout and identifies the major components of a typical Cold Row unit using direct expansion
(DX) refrigerant. The location of some components may vary depending on the cooling configuration selected (water, water/
glycol, or air cooled).
Figure 1-2. Typical internal layout: Cold Row DX.