DEFAULT SETTINGS & MENU ITEM DESCRIPTIONS
HeatNet Control V3 3.x
Page 121
DECELERATE
3.0%/s
.1 – 8.0 %/s
If a signal is sent to decrease the blower rpm, the blower’s
deceleration speed will change at this rate until its rpm is equal to
the signal sent. % Per second. Setting this value too low will slow
down the response of the boiler to get to setpoint. Setting this value
too high may cause undershooting of the blower rpm and
temporarily dropping below low fire of the boiler (Due to this
condition, the deceleration rate is automatically decreased as the
rpm approaches low fire).
SOFT START:
2
2 – 4 seconds
In order to start the Ametek blower, the control signal must be
applied to start the blower at a low rpm. If the low-speed start time
is too low the Ametek blower may not start and lock out with its
current limit. This may result in the need for the boiler to be
recycled. If this is to be avoided, the Stage 4 relay may need to be
wired to the Ametek Blower’s contactor. Doing this will allow (3)
attempts to restart the blower every 10 minutes. If the time is too
high, pre-purge time of the blower is lost.
OFF BOILER
–
BLOWER
0
0-50%
Setting this value to any value other than 0, will run the Blower at
this percentage when the boiler is OFF. This is primarily used to
maintain a positive pressure in the vent pipe in extreme situations.
PID Control
8
2-10
Setting this value will increase or decrease the PID control.
Both Space heating and DHW heating have separate PID controls
designed to match each individual load.
Control Settings Menu
— Page 3