SETUP & OPERATION
HeatNet Control V3 2.x
Page 12
configured as PRIORITY 1 with the highest runtime will be
stopped
LAST
(
example
). As long as the stop condition and
SHED DELAY time are met, all remaining PRIORITY 1 set
of boilers will stop based on runtime. If the Stop condition
changes and/or is not met (such as with: OA T or RET
temp), the PRIORITY 2 set of boilers will stop first/next
based on their highest runtime.
A boiler‘s firing Priority can be designated as such in:
ADVANCED SETUP:SYSTEM:BOILER TYPE:FIRING
PRIORITY : 1
menu on each boiler. A Priority of ‗1‘ is
the highest priority, a ‗2 the lowest (default is always 2).
Figure 3
Mixed Boilers: Example: Condensing/Non-Condensing
In the example
Mixed Boilers: Condensing/Non-
Condensing
, condensing boilers and non-condensing boilers
are used, but other combinations may also be used. Another
example could use (2) small boilers and set them to
Priority 1 and then use (3) larger boilers and set them to
Priority 2. Using these Priority settings (with the conditions
menu), the small boilers can run first during the shoulder
months (Spring and Fall) and the larger boilers can fire last
during the colder Winter season (base loading set).
Before the MIXED method can be used, the firing mode on
the Master boiler must be set to
MIXED. ADVANCED
SETUP:FIRING MODE: MODE: MIXED
. Pressing the
SELECT key when the cursor is pointing to
MIXED
will
enter the conditions menu. The
START
and
STOP
conditions
for starting and stopping the Priority boiler set may be
configured here. Temperatures are adjustable.
Once the conditions menu has been entered, the firing order
and stop order of the Priority 1 boiler set can be selected
based on up to (3) conditions in the conditional settings
menu. All conditional settings apply to the Priority 1 boiler
set. When the conditional settings do not apply to the
Priority 1 set, the conditional settings will apply to the
Priority 2 boiler set.
Note:
If the firmware version for a HeatNet V2 board is at
least 3.47(or a version 3 board), the non-condensing boiler
may hold itself off from being added to the HeatNet
Master’s available to fire list. This would effectively keep
the non-condensing boiler from firing in a condensing
mode, but as a result, may not satisfy the system setpoint.
See: SETUP:AUX FUCTIONS:HEAT EXCHANGER TEMP
DISAB:
S T A R T P R I O R I T Y 1
> S E T : F I R S T
S T O P P R I O R I T Y 1
S E T : O A T < 1 5 ° F
Summary of Contents for HeaetNet V3 KN-10
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