DEFAULT SETTINGS & MENU ITEM DESCRIPTIONS
HeatNet Control V3 3.x
Page 113
LOCAL DELAY
10 Seconds
0-255 seconds
Seconds
is the time in seconds that the local pump/valve will remain
on after the DHW pump/valve is enabled before shutting off. This is
part of the changeover process when the boiler was running in space
heating mode and now needs to provide DHW heating.
This timer may also be used for race conditions when operating
valves. The Local Pump Flow Prove time would be used to prove
flow, but with valves, the local valve may still have flow when the
DHW valve begins to open. This would cause a flow fault when the
local valve closes and the DHW valve still has not opened.
These timers work in parallel, but this timer only counts down when
flow is present. It stops counting down when flow stops but will not
cause a flow fault until its time expires. The Local Pump Flow Prove
timer counts down, but normally when flow occurs, it proves, and the
boiler is allowed to run. This local delay timer would then take over
instead of allowing the boiler to run and wait until its time expires
before allowing the boiler to start. This timer proves that there is
flow, whether interrupted or not, for x(setting) seconds. If pumps are
used, this value can be set to a few seconds.
PURGE TO
TANK
TANK, SPACE
TANK
-will keep the DHW pump/valve enabled for the DHW POST
PURGE time thus purging some of the boiler’s heat into the tank.
SPACE-
will turn off the DHW pump after 5 seconds and enable the
local pump/valve when a DHW heating cycle completes. This allows
dumping some of the remaining heat from the boiler into the heating
space (dump zone) and preventing the tank from overheating.
HYBRID SENSOR
OFF
OFF, SUPPLY,
DHW, RETURN
Hybrid Sensor mode for DHW method 5B
OFF
-This sensor is selectable for DHW Method 5B only.
SUPPLY-
In DHW Method 5B will maintain the DHW setpoint at
the supply sensor when the OR OVR input is closed.
DHW
-In DHW Method 5B will maintain the DHW setpoint at the
DHW sensor when the OR OVR input is closed. This sensor is
optional and needs to be added. It can be moved around and placed
in the Tank, pipe feeding the tank, or other location to maintain a
setpoint at that location.
RETURN-
In DHW Method 5B will maintain the DHW setpoint at
the RETURN sensor when the OR OVR input is closed.
TIME
This time needs to be entered at first turn-on and in the event that
power has been lost for more than 3 days. The time is required for an
accurate Night setback, log entry timestamp, and fault timestamp.
MONTH
DAY
YEAR
WEEKDAY
SAVE BUTTON
The SAVE button must be pressed after all time values have been
entered to save all time values at once.