Trane Tracer Unit Ventilator General Information, Auto, Face and, Entering, Multiple, Dehumid

General Information

Table 1: Tracer™ ZN.520 Unit Controller features and coil availability
			Auto	Face and				Entering
	Multiple	Dehumid-			Valve	Economizer	Auxiliary	Water
Coil			Damper	Bypass
	Fan Speeds	ification			Control	Damper	Heat2	Temperature
			Adjust	Damper
								Sampling
2-pipe changeover	X		X	X	X	X	X	X
2-pipe hot water	X		X	X	X	X	X
only
2-pipe steam only	X		X	X		X	X
2-pipe changeover/	X	X	X		X	X	X	X
electric heat
2-pipe cool only	X		X		X	X
2-pipe cool only/	X1		X1		X	X	X
electric heat
4-pipe hot water/	X	X	X	X3	X	X	X
chilled water
4-pipe changeover	X	X	X	X3	X	X	X	X
4-pipe steam/chilled	X		X		X	X	X
water
Electric heat only						X	X
DX/hot water	X1		X1		X	X	X
DX/steam	X1		X1		X	X	X
DX/electric heat						X	X
DX cooling only						X

1.Multiple fan speeds are available in hydronic units only.

2.Auxiliary heat is designed to bring on baseboard heat as the second stage of heating. The baseboard heat must be the same type as the

unit heating coil.

3.Units with face bypass dampers cannot actively dehumidify.

8 UV-SVP01A-EN