APPENDIX B
HeatNet Control REV 1.38-1
Page 80
Line # 4 Message
Description
AIR SWITCH(BLOWER)
If a call is made to the ignition control to start and the HeatNet control
detects a blower start, but no Pilot within two minutes, the boiler locks
out. This log entry indicates that the blower was ON with no flame in
the boiler. Freeze up protection.
LOST BOILER #
FOUND BOILER #
These log entries indicate that HeatNet has either discovered a boiler
or lost a boiler using it’s auto detection algorithm.
FAIL SAFE H-NET LOST
FAIL SAFE LOW TEMP
If the Fail Safe modes are active, these log entries indicate that they
became active for some reason and the boiler had entered Fail Safe
mode.
BASE LOAD BOILER
The Base load Boiler Relay K8 is Active if ON
Inactive if OFF
CALL SERVICE
If the H-Net control closes the last interlock string connected to the
ignition control and the ignition control never closes its Blower Relay,
the H-Net control will wait 2 minutes. The H-Net control will then retry
for the duration of the local pump post purge time and then retry the
ignition sequence. During this time “retry strt” will be displayed in the
status screen. After (5) attempts the H-Net control will lock out and
display call service.
