tekmar 324 tN2 Zone Expansion Module - Manual (Page 3)

3 of 4 © 2009 D 324 - 03/09
LED Status Indicators
Zone Expansion Module 324
Power Zone 1
Zone 2
Zone 3
Zone 4
tN4
Zone Group Pump
Cooling
Fan
Power LED
Green:
Normal operation.
Amber:
Power is present but the fuse for the internal 24 V (ac)
transformer is blown.
Off:
No power to the Power Input of the Zone Manager.
tN4 LED
Green:
The Zone Manager has established tN4 communication.
Off:
There is no tN4 communication.
Zone Group Pump LED
Green:
The Zone Group Pump relay is on.
Off:
The Zone Group Pump relay is off.
Cooling LED
Green:
The cooling relay is on.
Off:
The cooling relay is off.
•
•
•
•
•
•
•
•
•
Fan LED
Green:
The fan relay is on.
Off:
The fan relay is off.
Zone 1, 2, 3, 4 LEDs
Green:
The zone is on.
Off:
The zone is off.
•
•
•
•
When an error is present, an LED will flash. If there are multiple errors, then multiple LEDs may flash. Once the error has
been corrected, the LED will stop flashing.
Zone 1 LED Flashing Zone 3 LED Flashing
Zone 1 has an open or short
circuit and communication
to the thermostat on zone 1
has been interrupted. Check
the wiring between the
thermostat and the 324 for
open or short circuits. If the
thermostat was intentionally
removed, power off the 324,
wait 10 seconds, and then
reapply power to the 324. Zone 3 has an open or short
circuit and communication
to the thermostat on zone 3
has been interrupted. Check
the wiring between the
thermostat and the 324 for
open or short circuits. If the
thermostat was intentionally
removed, power off the 324,
wait 10 seconds, and then
reapply power to the 324.
Zone 2 LED Flashing Zone 4 LED Flashing
Zone 2 has an open or short
circuit and communication
to the thermostat on zone 2
has been interrupted. Check
the wiring between the
thermostat and the 324 for
open or short circuits. If the
thermostat was intentionally
removed, power off the 324,
wait 10 seconds, and then
reapply power to the 324. Zone 4 has an open or short
circuit and communication
to the thermostat on zone 4
has been interrupted. Check
the wiring between the
thermostat and the 324 for
open or short circuits. If the
thermostat was intentionally
removed, power off the 324,
wait 10 seconds, and then
reapply power to the 324.
Power Zone 1
Zone 2
Zone 3
Zone 4
tN4
Zone Group Pump
Cooling
Fan
Power Zone 1
Zone 2
Zone 3
Zone 4
tN4
Zone Group Pump
Cooling
Fan
Power Zone 1
Zone 2
Zone 3
Zone 4
tN4
Zone Group Pump
Cooling
Fan
Power Zone 1
Zone 2
Zone 3
Zone 4
tN4
Zone Group Pump
Cooling
Fan
Flashing LED Indicated Error Messages