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

UV-SVN03F-EN 19
Pre-Installation
Jobsite Inspection
Always perform the following checks before accepting a
unit:
1. Verify that the nameplate data matches the data on the
sales order and bill of lading (including electrical data).
2. Verify that the power supply complies with the unit
nameplate specifications.
3. Visually inspect the exterior
of the unit, for signs of
shipping damage. Do not sign the bill of lading
accepting the unit(s) until inspection has been
completed. Check for damage promptly after the
unit(s) are unloaded. Once the bill of lading is signed at
the jobsite, the unit(s) are now the property of the
SOLD TO party and future freight claims MAY NOT be
accepted by the freight company.
Jobsite Storage
This unit is intended for indoor use only. To protect the unit
from damage due to the elements, and to prevent possible
IAQ contaminant sources from growing.
1. Place the unit(s) on a dry surface or raise above the
ground to assure adequate air circulation beneath the
unit.
2. Cover the unit(s) with a water proof tarp to protect
them
from the elements.
3. Make provisions for continuous venting of the covered
units to prevent moisture from standing on the unit(s)
surfaces.
4. Do not stack units.
NOTICE:
Microbial Growth!
Wet interior unit insulation can become an
amplification site for microbial growth (mold), which
may cause odors and damage to the equipment and
building materials. If there is evidence of microbial
growth on the interior insulation, the insulation should
be removed and replaced prior to operating the system.
UV-SVN03_.book Page 19 Thursday, January 24, 2013 5:27 PM