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Start-up and Commissioning
Quick Cool Down: is Off.
2
Quick Cool Down incremental drop: __(deg) is the value used for each interval when quick cool down is
3
required. Use the default value initially and adjust as required.
Initially use the default value 1.25 (deg) for the First Reset. Adjust after observing the response. This value
4
should be between 0.7 and 2.0 (deg).
Input Smoothing is reasonable
5
NOTE You should start with the default of 50 and then fine tune it according to your system after it has been
running for a while.
System Response Time in minutes is set to the default initial response time of 15 minutes.
6
NOTE Start with 10 / 15 minute value for a small / medium commercial building.
Set Minimum and Maximum Reset Increments & Algorithm Reset Gains, starting with:
7
Minimum Reset = 1 (deg)
○
Maximum Reset = 2 (deg)
○
Reset Increment Coarse Gain = 5
○
Reset Increment Fine Gain = 0
○
NOTE Adjust if required.
Bias for reset of CHWS temperature setpoint for warmer temperatures are off at this time.
8
Reset Output is setup for the actual setpoint range of the desired chilled water supply temperature. Use the
9
default range of 42 degrees to 52 degrees as a start, or fine tune to your system requirements.
10 Select NO for the Current Setpoint Input > Use the chilled water supply temperature (CURR STPT IN) as the
optimizer starting setpoint?.
Chilled water optimizer reset - Start-up
After you have completed the check out and verification of both the General Conditions & Status and the Chilled
Water Temperature Optimizer Reset, enable the optimizer.
To Start & Run the Optimizer
General Conditions & Status > Section 1 - Optimizer – Primary Enable Conditions (page 60)
All the enable conditions must be On.
1
Set the Main ON Switch to ENABLED.
2
NOTE This switch ONLY enables the program, but not the individual reset functions. Continue below to
enable the chilled water reset function.
Chilled Water System Optimizer v2
Installation and Start-up Guide
36
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