user manual

8 UV-SVP01A-EN
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.
Table 1: Tracer™ ZN.520 Unit Controller features and coil availability
Coil
Multiple
Fan Speeds
Dehumid-
ification
Auto
Damper
Adjust
Face and
Bypass
Damper
Valve
Control
Economizer
Damper
Auxiliary
Heat
2
Entering
Water
Temperature
Sampling
2-pipe changeover X X X X X X X
2-pipe hot water
only
X X X X X X
2-pipe steam only X X X X X
2-pipe changeover/
electric heat
X X X X X X X
2-pipe cool only X X X X
2-pipe cool only/
electric heat
X
1
X
1
X X X
4-pipe hot water/
chilled water
X X X X
3
X X X
4-pipe changeover X X X X
3
X X X X
4-pipe steam/chilled
water
X X X X X
Electric heat only X X
DX/hot water X
1
X
1
X X X
DX/steam X
1
X
1
X X X
DX/electric heat X X
DX cooling only X
General Information