Start-Up Procedures - Trane Tracer ZN524 Installation Owner Diagnostics

Installation of New Units
WARNING
Hazardous Voltage!
Disconnect all electric power, including
remote disconnects before servicing.
Follow proper lockout/tagout proce-
dures to ensure the power can not be
inadvertently energized. Failure to dis-
connect power before servicing could
result in death or serious injury.
1. Follow all instruction for installation
of the water-source heat pump as
detailed in the unit's installation guide.
(Installation Operation Diagnostics
manual).
2. Disconnect power or disable the cir-
cuit breaker to unit.
3. Run communication link wire when
required. (See wiring diagram in the
unit).
4. Install zone sensor when required.
(See wiring diagram in the unit and
zone sensor submittals).
5. Reapply power.
6. Check for GREEN Status LED opera-
tion to ensure power has been made
to the Tracer TM ZN524 unit controller.
7. Check for YELLOW Comm LED opera-
tion to help ensure communication has
been made to the Tracer ZN524 unit
controller when applicable.
8. Write the Unit Identification number,
using the IDENTIFICATION TAG on the
unit, in the Appendix of this document,
or on building plans for future location
use.
4

Start-up Procedures

Power Up Sequence
Manual output test can be initiated at
any time in the power up sequence or
during normal operation.
When 24 VAC power is initially applied
to the controller, the following
sequence occurs:
1. Green Status LED turns on.
2. All outputs are controlled Off.
3. The controller reads input values to
determine initial values.
4. Stand-alone control is assumed
unless occupancy data is communicat-
ed.
5. Random start timer expires (5 to 30
seconds, random).
6. Power-up control Wait feature is
applied. When power up control Wait is
enabled, the controller waits 2-minutes
to allow ample time for communicated
control data to arrive. If, after 2-min-
utes, the controller does not receive a
communicated occupancy request, the
unit assumes standalone operation.
7. All valves and damper calibrate
closed.
8. Normal operation begins after 290
(potentially) seconds have passed.
Note: Manual output test can be
initiated at any time.
CNT-SVX11A-EN