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UNT-IOM-6 3
UniTrane
®
fan-coil and Force Flo cabinet heaters units are single
room units with load capabilities of 200 to 1200 cfm. See Figure 1
for unit components. Fan-coil units are available as 2-pipe with or
without electric heat (one hydronic circuit) or 4-pipe (two hydronic
circuits). Force Flo units feature 2-pipe hydronic coils, electric heat
only, or steam only. Also, units feature a variety of factory piping
packages. See the Appendix on page 100 for more information on
available factory-installed piping packages.
Three control options are available with the UniTrane
®
fan-coil and
Force Flo cabinet heater units.
1. fan mode switch
2. Tracer
®
ZN.010 and ZN.510, ZN.520
3. terminal unit controller (TUC)
All control options are available as unit or wall mounted. Units with a
Tracer
®
ZN.010, ZN.510, ZN.520 or TUC also feature a split combina-
tion: unit mounted fan mode switch with a wall mounted setpoint dial.
The Tracer
®
controllers (ZN.010, ZN.510 and ZN.520) utilize binary
outputs to operate 2-position control valves, supply fan/s, 2-position
dampers, and electric heat.
The TUC utilizes binary outputs to control the fan and optional
auxiliary heat. In addition, it operates 2-position or 3 wire floating
point control valves and the fresh air damper.
Available supply and return openings vary with each cabinet style. In
addition, a fresh air opening with either a manual or motorized air
damper is an available option. See pages 4-5 for available cabinet
styles.
General Information
Hydronic coil
Fan motor(s)
Throwaway filter
Supply fan(s)
Piping package
Control panel
Figure 1. Main components of a fan-coil or cabinet heater unit.
*Auxiliary
drain pan
*Main drain pan
*Featured on fan-coils only