Testing the control – tekmar 262 Boiler Control Installation User Manual
Page 27

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Copyright © D 262 -
12/08
Testing the Control
The Boiler Control 262 has a built in test routine which is used to test the main control functions.
The 262 continually monitors the sensors and displays an error message whenever a fault is
found. See the following pages for a list of the 262’s error messages and possible causes.
When the
Test button is pressed, the Test light is turned on. The individual outputs and relays
are tested in the following test sequence.
TEST SEQUENCE
Each step in the test sequence lasts 10 seconds.
During the test routine, the test sequence is paused by pressing the
Test button. While paused, the control displays the testing step as
well as the word PAUS. If the
Test button is not pressed again for 5 minutes while the test sequence is paused, the control exits the entire
test routine. If the test sequence is paused, the
Test button can be pressed again to advance to the next step. This can also be used
to rapidly advance through the test sequence. To reach the desired step, repeatedly press and release the
Test button until the
appropriate device and segment in the display turn on.
Step 1
- The boiler pump
(Boil P1) is turned on for 10 seconds.
NOTE: Only if there is a boiler demand can the control be paused in step 1.
Step 2
- The
zccontact is turned on for 10 seconds.
NOTE: Only if there is a boiler demand can the control be paused in step 2.
The type of setback override that is in effect.
DIP switch =
Setback
AWAY is available even if DIP
≠ Setback
NONE, TMPY Occ Ovr, PERM
Occ Ovr, TMPY UnOcc Ovr,
PERM UnOcc Ovr, AWAY Ovr
Default = NONE
262 RTU Schd (Schedule) Menu (1 of 1)
Section
RTU
063
RTU
062
A
LT
D
USER INST ADV
Range
Access
Level
Description
Item Field
•
•
•
•
•
Test
not testing
testing
testing paused
off
red
red
262 RTU Misc (Miscellaneous) Menu (1 of 1)
•
•
•
•
•
RTU
063
RTU
062
•
•
•
•
•
•
•
•
•
•
•
The access level that is to be used by the RTU.
DIP switch =
Unlock
˚F, ˚C
Default =
°F
OFF, 30 sec, ON
Default = ON
ADV, INST, USER, LTD
Default = INST
The units of measure that all of the temperatures are
to be displayed with in the RTU.
The operating mode for the back lighting on the LCD
as well as the time of keypad inactivity until the RTU,
automatically returns to the view menu.
BACKLITE = OFF (returns after 10 seconds)
BACKLITE = 30
sec (returns after 30 seconds)
BACKLITE = ON (returns after 90 seconds)
LT
D
USER INST ADV
Range
Access
Level
Description
Item Field