Installation and Maintenance Manual
Table Of Contents
- Warnings, Cautions and Notices
- Model Number Descriptions
- General Information
- ECM Application Notes
- Dimensions and Weights
- Receiving and Handling
- Pre-Installation
- Installation—Mechanical
- Installation—Piping
- Installation—Sensors
- Installation—Electrical
- ECM Overview and Setup
- Time Clock
- Wired Controllers—Communication Wiring
- Pre-Start
- Startup
- Tracer ZN520 Unit Startup
- Tracer UC400 Unit Startup
- General Information
- Fan Mode Switch Operation
- Tracer ZN520 Operation
- UC400 Controller Operation
- Tracer ZN520 Sequence of Operation
- UC400 Sequence of Operation
- Power-up Sequence (UC400)
- Random Start (UC400)
- Occupancy Modes (UC400)
- Timed Override Control (UC400)
- Zone Temperature Control (UC400)
- Discharge Air Tempering (UC400)
- Heating or Cooling Mode (UC400)
- Entering Water Temperature Sampling Function (UC400)
- Fan Operation (UC400)
- Exhaust Control (UC400)
- Valve Operation (UC400)
- Modulating Outdoor/Return Air Damper (UC400)
- Two-position Control Of A Modulating Outdoor Air Damper (UC400)
- Electric Heat Operation (UC400)
- Dehumidification Operation (UC400)
- Peer-to-peer Communication (UC400)
- Unit Protection Strategies (UC400)
- Maintenance
- Diagnostics
- Replacing ECM Components

Dimensions and Weights
UV-SVN03F-EN 17
Note: 1-3/8 in. OD and 2-1/8 in. ID crossover piping
1. Crossover piping is available for all 2- or 4-pipe coils
selections. Trane provides the crossover for the hot
water only. The crossover pipe is factory insulated with
3/8 in.-thick insulation.
2. Expansion compensation between the factory piping
package and the crossover piping is achieved using a
flex hose rated at 250 psi working pressure. Flex hose
i
s only available with factory mounted piping
packages.
3. Expansion compensation for the
crossover piping
must be handled external to the unit ventilator.
4. Crossover connections term
inate in the same end
pocket as the heating coil on all 2- and 4-pipe coils.
Figure 7. Crossover piping
FLUSH
FLUSH
1 1/2"
1 1/4"
3"
24"
19 3/8"
3 5/8"
5 3/8"
RETURN
7/8" I.D. FIELD
CONN. W/ SHUT
OFF VALVE
7/8" I.D. FIELD
CONN. W/ SHUT
OFF VALVE
RETURN
TOP VIEW
SIDE VIEW
TOP VIEW
SIDE VIEW
16 5/8" DEPTH UNIT
21 1/4" DEPTH UNIT
SUPPLY
3"
24"
19 3/8"
3 1/2"
4 1/2"
8 1/4"
10"
SUPPLY
RS
3 1/2"
4 1/2"
RS
UV-SVN03_.book Page 17 Thursday, January 24, 2013 5:27 PM