2 • Installation 026-1727 Rev 3
2 Mounting and Powering
The DAC is usually mounted by the HVAC equipment manufacturer. Therefore, the installer need only make
the necessary connections between the boards and the site controller(s).
In some instances, an installer may be required to mount the DAC. There are no restrictions on the location
of the DAC; however, the controller should be mounted in a location protected from moisture. Typically,
mounting inside the electrical control panel of a package unit is acceptable. If there is no room to mount the
controller inside the HVAC unit, it may be mounted inside a weatherproof enclosure on the outside of the unit.
2.1. Installation
The DAC uses a DIN mount installation.
2.2. Powering the DAC
Retail Solutions supplies a wide variety of 24VAC
transformers with varying sizes without center taps.
Table 2-2 shows the transformer sizes and are non-
center-tapped.
Figure 2-1 - DIN Mounting
Mount: On a DIN rail (EN 50022, DIN
43880)
Fastened with screws via the
removable plastic flaps.
Material: PC-ABS Thermoplastic
Self-extinguishing: V0 (UL94)
Comparative
Tracking Index
(CTI):
300V
Color: White
Table 2-1 - DAC Enclosure Specifications
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