Tekmar 422 Universal Reset Module Manuel d'utilisateur Page 29
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29 of 32 © 2007 D 422 - 08/07
Error Messages (1 of 3)
Error Message Description
ADJUST ERROR
The control failed to read the Adjust menu settings, and reloaded the factory default settings.
Operation stops until you check the Adjust menu settings.
Note: To clear the error, the access level must be set to Advanced and the settings in the
Adjust menu must be checked.
MISCELLANEOUS ERROR
The control failed to read the Miscellaneous menu settings, and reloaded the factory default
settings. Operation stops until you check the Miscellaneous menu settings.
Note: To clear the error, the access level must be set to Advanced and the settings in the Misc
menu must be checked.
BOILER BUS ERROR
Communication has been lost on the boiler bus. Check the tN4, C and R wires for each tN4
device. Check the polarity of the C and R wires. Check for loose or broken wires.
BOILER BUS DEVICE LOST
Communication is lost to a tN4 device at address AA on the Boiler bus. The LCD on the lost
device displays Bus Boil OPn. Ensure that there is power to the lost device. Trace the wires
from the control to the lost device looking for loose or damaged wires.
Note: If you deliberately remove a tN4 device, hold the Up and Down buttons to clear the error.
BUS 1 ERROR
Communication has been lost on the Mix 1 bus. Check the tN4, C and R wires for each tN4
device. Check the polarity of the C and R wires. Check for loose or broken wires.
BUS 1 DEVICE LOST
Communication is lost to tN4 device AA on the Mix 1 bus. The LCD on the lost device displays
Bus 1 OPn. Ensure that there is power to the lost device. Trace the wires from the control to
the lost device looking for loose or damaged wires.
Note: If you deliberately remove a tN4 device, hold the Up and Down buttons to clear the
error.
BUS 2 ERROR
Communication has been lost on the Mix 2 bus. Check the tN4, C and R wires for each tN4
device. Check the polarity of the C and R wires. Check for loose or broken wires.
BUS 2 DEVICE LOST
Communication is lost to tN4 device AA on the Mix 2 bus. The LCD on the lost device displays
Bus 2 OPn. Ensure that there is power to the lost device. Trace the wires from the control to
the lost device looking for loose or damaged wires.
Note: If you deliberately remove a tN4 device, hold the Up and Down buttons to clear the error.
BUS 2 MODULE ERROR
The control lost communication with the Mixing Module or more than one Mixing Module has
been connected to Bus 2. Ensure that there is only one Mixing Module on Bus 2 and that there
is power to the Mixing Module. Trace the bus wires from the control to the Mixing Module looking
for any loose or damaged wires.
MIX 1 MODULE ERROR
A Mixing Module has been connected to the Mix 1 bus. Ensure that there is not a Mixing
Module on the Mix 1 bus.
- - Data Brochure 1
- Display and DIP Switches 2
- Access Level 3
- © 2007 D 422 - 08/07 4 of 32 4
- User Interface 5
- VIEW MENU 6
- Display Menus 6
- ADJUST MENU 10
- MISC MENU 13
- Testing the Control 14
- Max Heat 15
- Zone Test 15
- Sequence of Operation 16
- Warm Weather Shut Down (WWSD) 17
- Terminal Unit 17
- Outdoor Design Temperature 17
- Boiler Outdoor Reset 18
- Mix 1 and Mix 2 Outdoor Reset 18
- Boiler Target Temperature 19
- Boiler Minimum 19
- Boiler Maximum 19
- Fire Delay 19
- On-Off Boiler Operation 20
- Modulating Boiler Operation 20
- Voltage (dc) 21
- 012345678910 21
- Boiler Target 21
- Mixing Operation Section G 22
- Zone Load Shedding Section F 22
- Boiler Enable Section E 22
- 23 of 32 © 2007 D 422 - 08/07 23
- DHW Priority Override 24
- Setpoint 25
- Setpoint Demand 25
- Conditional DHW Priority 25
- DHW Post Purge 25
- DHW Mixing Purge 25
- Boiler Target During Setpoint 26
- Setpoint During UnOccupied 26
- Setpoint Modes 26
- Setpoint Priority Override 26
- Conditional Setpoint Priority 26
- Pump Operation Section K 27
- Pump Exercising Section L 27
- Error Messages 28
- Error Messages (1 of 3) 29
- Error Messages (2 of 3) 30
- Troubleshooting 31
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