SCREEN DESCRIPTIONS
HeatNet Control V3
Page 87
Setpoint Source Messages
General Messages
0-10VDC Setpoint
Settings are configured to allow a 0-10VDC signal to change setpoint.
4-20mA Setpoint
Settings are configured to allow a 4-20mA signal to change setpoint.
DHW Setpoint
The DHW sensor is controlling the setpoint for DHW heating.
Local Setpoint
Boiler is watching the Local Setpoint.
.
OA Setpoint
The Outside Air sensor is controlling the setpoint.
.
System DHW
Setpoint
A Member boiler is being controlled by a HeatNet Master
–
Reference.
System Setpoint
Boiler is watching the System Setpoint from the HeatNet Master.
Air Switch (Blower)
If the ignition control closes its BLOWER relay, and the control does not see the Main Valve relay
close within (2) minutes, this message will be displayed. This alarm protects the boiler from freeze
ups being caused by a blower bringing in cold outside air with no fire.
BLOWER, RPM
FAULT
The Tach signal on J1 is present or is not present (depending on the Blower Type) when the blower
starts it's pre-purge. This may be caused by the Boiler Type setting being improperly set to a VFD
when an Ametek blower is present, or an Ametek blower being set when a VFD is present.
BLOWER, RPM
HIGH: (Ametek
Blower)
If the signal from the HeatNet control board to the Ametek blower exceeds the factory limits, or the
blower “runs away” excessive speed), this message will be displayed. With this event, the HeatNet
control will lockout the boiler and the boiler will require a manual reset to restart.
Blower Signal not
Received, Retrying
The Boiler attempted to start by sending the J5 FLAME SAFE ALARM signal to the Ignition Control. The
control then waited for the Blower signal from the Ignition Control and timed out.
Call For Service
When a start signal to the ignition control is sent and not received the, H-Net control waits 2 minutes.
A retry start ignition sequence for the duration of the local pump post purge time will occur. During
this time ,“
Blower Signal not Received, Retrying
” will be displayed. After 5) attempts the H
-Net
control will lock out.
Combustion Air
Damper Fault
Caused when the damper is detected closed, but should be open. Input on J12B.7 & J12B.8.
DHW Heating
The boiler is performing DHW Heating.
Failsafe: HeatNet
Communications
Lost
The control has entered the Failsafe mode due to a loss of HeatNet communications from the Master.
Содержание HEATNET 3.0 Torus Series
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