Lennox iComfort M30 - System Test Modes

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System Test Modes
After the thermostat has been installed and set-
up, the installer may run a system test function
(accessed through the installer settings menu), to
test all cooling, heating, emergency heating stages
and FAN outputs.
Select system test mode. A pop-up will be displayed
indicating all equipment will be stopped. Touch
conrm to continue.
Pressing the OFF button next to the desired option
will change the status to ON and will enable the
relay for that terminal. Pressing again will turn OFF
the relay. Touch the left arrow (<) to exit the system
test mode.
IMPORTANT
The thermostat System Test Mode provides the
technician the ability to test the thermostat relay
outputs and can be used to assist in the testing
and troubleshooting of the equipment. Important
information related to thermostat System Test
Mode are outlined in “Table 8. Thermostat Test
Modes”.
Table 8. Thermostat Test Modes
Test Description
Blower
Test will provide a relay output on “G”
and the equipment will operate on the
equipment continuous fan speed. Equipment
continuous fan speed may not be full cooling
air volume.
Cooing - 1st Stage
Test will provide a relay output on “Y1” for
the compressor, “G” for the blower and “O”
Reversing Valves (heat pump units). If the
dehumidication mode option was selected
during thermostat setup, the thermostat will
not provide a 24Vac Output on “D” during
the system test mode and the equipment will
operate at the dehumidication air volume.
The dehumidication air volume is typically
70% of the cooling air volume. If testing
requires 100% of the cooling air volume, a
jumper will need to be installed between “R”
and “DS” at in the indoor equipment.
Cooling - 2nd
Stage
Test will provide a relay output on “Y1” for
rst stage compressor “Y2” for second stage
compressor, “G” for the blower and “O”
Reversing Valves (heat pump units). If the
dehumidication mode option was selected
during thermostat setup, the thermostat will
not provide a 24Vac Output on “D” during
the system test mode and the equipment will
operate at the dehumidication air volume.
The dehumidication air volume is typically
70% of the cooling air volume. If testing
requires 100% of the cooling air volume, a
jumper will need to be installed between “R”
and “DS” at in the indoor equipment.