HT# 059299-00 A
/<Maintenance>/ Gain
• In this Mode, the Gain adjusts the modulation aggressiveness of the
control PID logic See "Operating Mode" on page 28
--------- GAIN ---------
+0
[
]
• A Gain of 0 is a good starting point for all systems
• If during normal load conditions, the system temperature/pressure tends
to oscillate signicantly, decrease the Gain by two numbers (for example,
from 0 to -2)
• If during normal load conditions the system temperature/pressure tends
to remain consistently below the Set Point (or consistently above the Set
Point), increase the Gain by two numbers (for example, from 0 to 2)
• After each change wait for at least 15 minutes before evaluating the
change's effect on the system
• In this mode, the Gain acts as a throttling range around the target See
"Operating Mode" on page 28
• When the actual temperature/pressure is equal to the target, only the
lead stage is on at 100% modulation
• Each Gain range above or below the target controls one stages
modulation linearly from 0 to 100%
• The Process Gain Table below shows the relationship between the Gain
and stage modulation
The Process Gain Table does
not show all the possible
modulation values The
table is for example only
The Multi-MOD Platinum will
control the modulation in one
percent increments based on
the target and Gain
/<System Settings>/<More Settings>/Purge Delay
• The Purge Delay is designed to match the boilers purge period before it
is brought on line and can begin generating output
• When activating a new stage, the Multi-MOD Platinum holds its
modulation at the Ignition % until the Purge Delay ends Once the Purge
Delay is over, the control begins adjusting its modulation
• Set the Purge Delay according the stage's manufacturer specication
--- PURGE DELAY ---
1.0m
[
]
To Next Page
Loading...
Need help?
General