AHRI K2WT, Installation, Operating And Service Instructions

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indication Condition Possible Cause
Zone Panel
Setup
Flashing
Zone Panel 1
Setup
Flashing
Zone Panel 1 communication lost, typical for Panel 1 through 4: The zone panel’s
communication was established and then lost. Check the following to correct the
issue:
• Wiring between panel and boiler.
• Zone panel DIP switch settings have changed:
- Set Master/Slave switch to “Master”
- Set Zone Control switch ZC1 to “ON”
- Cycle power
Zone Panel Electronics Failure: A Zone Panel
Duplicate Zone: The Control has detected duplicate zone panel numbers. Check the
following to correct:
• Each Zone Control DIP Switch must be set to a Unique setting:
Note that when multiple ZC switches are set on ON the Zone Panel
is reported as Zone Panel 1.
Sequencer
Setup
Sequencer
Setup
Fault
This alarm is active if the slave boiler has lost communication with the Sequence
Master. Check the following:
- RJ 45 peer-to-peer network disconnected
- Sequencer Master was Enabled and then Disabled
- Master’s Boiler has been powered down.
- To clear fault restore communication or cycle power
Boiler Size
Setup
Boiler
Size
Fault
Warning!
Boiler size setting may not match actual boiler size.
The Boiler size setting determines min, max and light-off blower speeds. Incorrect
boiler size can cause hazardous burner conditions and improper operation that may
result in PROPERTY LOSS, PHYSICAL INJURY, OR DEATH.
Refer to page 109 for boiler size setting instructions.
XIV. Troubleshooting
(continued)
C. Help Screen Faults
Zone Panel
Failure
Flashing
Duplicate
Zone
Flashing
D. Help Screen Diagnostic Features
indication Possible Cause
Lockout History is stored in a first-in, first-out basis. Each History file is stored with boiler run hour of when the
lockout occurred.
The “When happened” and “Current” provide:
- “Current” is the run hour and status the boiler just finished.
- “When happened” is the run hour and status when the lockout occurred.
For Service Contact :
CONTRACTOR NAME
CONTRACTOR ADDRESS 1
CONTRACTOR ADDRESS 2
PHONE NUMBER
The user is given the contact information of the responsible service provider. Refer to page 116 for data entry
instructions.