Chapter 1 Overview and specifications
2 CNT-SVX05B-EN
Table 1. Tracer AH540/541 air-handling unit configuration options
1
Unit configuration
Options
Preheat Cool Reheat
Heating only • Steam coil
• Hydronic heats coil
• Electric heat
• Face-and-bypass hydronic heat-
ing
Cooling only • Hydronic cooling
• DX cooling
Heating and cooling • Steam coil
• Hydronic heat coil
• Electric heat
• Face-and-bypass hydronic heat
Cooling and heating — • Hydronic cooling
• DX cooling
• Steam coil
• Hydronic heat coil
• Electric heat
Two-pipe changeover • Heat/cool changeover
• Heat/cool changeover • Electric heat
• Electric heat • Heat/cool changeover
• Face-and-bypass heat • Heat/cool changeover
• Face-and-bypass heat • Heat/cool changeover • Electric heat
1 Not all configuration options will be available on all air-handling units.
Table 2. Tracer AH540/541 controller functions
Function
Space
temperature
control
Discharge air
temperature
control
Fan control On/Off Variable or On/Off
Duct static pressure control X
Hydronic cooling X X
Hydronic heating X X
Steam heat X X
Face bypass heating X X
Ventilation control X X
Economizer damper X X
Warm-up functions X X
Mixed-air temperature control X X
Exhaust fan (on/off) X X
DX cooling X X
Electric heat X X
Dehumidification X
Two-pipe changeover X