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Chapter 1 Overview and specifications
2 CNT-SVX07C-EN
Storage environment
If a Tracer ZN521 zone controller is to be stored for a substantial amount
of time, store it in an indoor environment that meets the following
requirements:
• Temperature: –40° to 185°F (–40° to 85°C)
• Relative humidity: 5–95%, noncondensing
Dimensions
Plastic-cover model dimensions
For complete dimensional drawing, see Figure 1 on page 3.
• Height: 5.375 in. (137 mm)
• Width: 6.875 in. (175 mm)
• Depth: 2 in. (51 mm)
Metal-cover model dimensions
For complete dimensional drawing, see Figure 2 on page 3.
• Height: 9.0 in (25 mm)
• Width: 10.37in. (263 mm)
• Depth: 2.25 in. (58 mm)
Clearances
Plastic-cover model
(see Figure 1 on page 3)
• Front: 4.0 in. (102 mm)
• Each side: 1.0 in. (25 mm)
• Top and bottom: 4.0 in. (102 mm)
Metal-cover model
(see Figure 2 on page 3)
• Front: 24.0 in. (610 mm)
• Each side: 2.0 in. (51 mm)
• Top and bottom: 1.0 in. (25 mm)