THE SMART SOLUTION FOR ENERGY EFFICIENCY
MPC MultiProtoCol DDC Controls
November 19, 2018
54
Equipment Touch Screen Descriptions
Manual Setpoint Adjustment
Password Protected
Sets the maximum amount (degrees) by which the user
can adjust the zone's setpoints from a zone sensor. The
adjustment range is dened as +/- the value of Manual
SP Adjust. Example: If Manual SP Adjust is = 2 the
adjustment range would be +/- degrees from the Master
Zone Temperature ( 72°) or from 70° to 74°.
1. Manual Setpoint Adjust (AV:37) - Sets the Adjust-
ment span when not in metric mode.
2. Manual Setpoint Adjust (AV:44) - Sets the Adjust-
ment span when in metric mode.
Compressor Setup
Password Protected
The Compressor Setup screen contains all control points
listed below and a button for accessing the Status sub
screen and the Help Screen.
1. Load Balancing Mode - Denes the mode
of operation for the runtime balancing of a 2
Compressor application. The modes are set by
entering the following in AV:59
a. AV:59 = 01- Runtime comparison mode - The
compressor with the least runtime becomes
the stage 1 compressor while the high time
compressor becomes the stage 2 compressor.
b. AV:59 = 02 - Manual C1 is Stage 1, C2 is
Stage 2.
c. AV:59 = 03 - Manual C2 is Stage 1 and C1 is
Stage 2.
d. AV:59 = 04 - Time Toggle- C1 and c2 swap
stages every 12 hours dependent on demand.
2. Compressor Enable/Disable - This setting either
enables or disables both C1/ C2 Compressor
outputs.
3. Compressor Runtime Resets - This resets the C1/
C2 runtime counters back to zero. The compressor
alarms are set to trigger at 5000 hours.
4. Compressor Cycle Alarm Resets - Resets the
Alarm that gets triggered when there are more than
6 compressor demand cycles within any one Hour
period of time.
5. Compressor Manual ON controls - These points are
used to manually turn on the C1 or C2 outputs. Unit
must be in test mode for these to function.
Figure 31:
Figure 32:
To Next Page
Loading...
Need help?
General