tekmar 269 One Stage Steam Control - Manual (Page 10)

Copyright © D 269 - 06/00 10 of 12
Step Seven Operational test of control functions - Test button
Test Button
The One Stage Steam Control 269 has a Test button which can be used to test all of the main control
functions at any time. When the Test button is pushed the control automatically runs through the
following test procedure.
All red lights on
On power-up, and at the start of each test routine, all of the red status lights are switched on for
approximately 5 seconds. During this time the control searches for sensor faults and, if no faults are
found, proceeds to the next step. If a sensor fault exists, the control exits the test routine and indicates
the fault by flashing a combination of lights. These Error Messages are listed on page 11.
Power light on — Boiler light on
The control turns on the Boiler relay for 10 seconds and proceeds to the next step or; if during the
10 seconds the Test button is pressed, the test routine will be halted, the "Test" light will flash, and
the control will be held in a pause mode for 5 minutes. After the 5 minutes, the control will
automatically exit the test routine and return to normal operating mode. Pushing the Test button
during the 5 minute pause will allow the control to proceed to the next step of the test routine.
Power Light on — Auxiliary light on
The control turns on the Auxiliary relay for 10 seconds and proceeds to the next step or; if
during the 10 seconds the Test button is pressed, the test routine will be halted, the "Test" light
will flash, and the control will be held in a pause mode for 5 minutes. After the 5 minutes, the
control will automatically exit the test routine and return to normal operating mode. Pushing
the Test button during the 5 minute pause will allow the control to proceed to the next step of
the test routine.
Power Light on — Warning light on
The control turns on the Warning relay for 10 seconds and proceeds to normal operation
mode, or if during the 10 seconds the Test button is pressed, the test routine will be halted,
the "Test" light will flash, and the control will be held in a pause mode for 5 minutes. After the
5 minutes, the control will automatically exit the test routine and return to normal operating
mode. Pushing the Test button during the 5 minute pause will allow the control to proceed to
the normal operation mode.
Power Light on— Test light off
The control has exited the test routine, entered operating mode and will function according to the sequence of operation
described on pages 2 to 6.
One or more of the indicator lights may be on. Refer to pages 3 to 5 for a description of the
possible indicator light combinations under operating conditions.
Step Eight Troubleshooting
As in any troubleshooting procedure, it is important to isolate a problem as much as possible before proceeding. The Error
Messages and Test button greatly simplify troubleshooting of the One Stage Steam Control 269.
If a fault occurs during operating mode or during the test routine and the control is flashing an Error Message, identify the fault
from the look-up table on the next page and then follow standard testing procedures to confirm the problem.
If you suspect a wiring fault, return to steps four and five and carefully check all external wiring and wiring connections.
During normal operation, if the Outdoor Sensor develops either a short circuit or an open circuit, the control will cycle the boiler
50% on at a rate determined by the Cycle Length dial. Also, the Warning relay will turn on to indicate there is a fault and the
appropriate error lights will be flashing.
During normal operation, if one Indoor Sensor develops either a short circuit or an open circuit when two Indoor Sensors are used,
the control will use the operational Indoor Sensor reading. If one Indoor Sensor is installed, and it develops either a short circuit
or an open circuit, the control will default to the Occ./UnOcc dial setting. The Warning relay will turn on to indicate there is a fault
and the appropriate error lights will be flashing.
Test
Test
Boiler
Power Steam
Established
Heating
Cycle
UnOcc.
Auxiliary
WWSD
Early Start
Warning
Test
Boiler
Power Steam
Established
Heating
Cycle
UnOcc.
Auxiliary
WWSD
Early Start
Warning
Test
Boiler
Power Steam
Established
Heating
Cycle
UnOcc.
Auxiliary
WWSD
Early Start
Warning
Test
Boiler
Power Steam
Established
Heating
Cycle
UnOcc.
Auxiliary
WWSD
Early Start
Warning