Service Manual

GSM-204-423
Testing the thermal management system (TMS)
31st Oct 01
Inst. 7–16
Installation & Configuration: Horizon
macro
outdoor
CONTROLLED INTRODUCTION
68P02902W03-A
Testing the thermal management system (TMS)
Overview of
TMS test
Objective
The TMS test verifies whether or not the TMS is operating correctly.
Test equipment
The TMS test does not require any test equipment.
Commands
The TMS test does not require any software commands.
Test facilities
A four button test switch is mounted on the alarms interface board next to the
power supply unit (PSU).
Provision is made to perform the following tests:
Operate the fans (minimum speed).
Change the recirculation air (internal) fan speed.
Change the ambient air (external) speed.
Operate the heater.
NOTE
Heater function is indicated by the illumination of an LED,
mounted on the rear vertical wall at the top right of the
recirculation air outlet aperture, below and in front of the
power supply enclosure.