Installation, Operation and Maintenance Manual
Marvel BMS
8
Subject to change without notice.
120.5-IM (0419)
Bacnet
Modbus
Carel
R/W
United CoolAir Description
Value Range
Binary
Digital
Digital
1
10002
1
R/W
Keypad - System On/Off
0=Off, 1=On
2
10003
2
R
Operating Mode - Cooling
1=Cooling
Analog
Analog
Analog
1
40002
1
R
Room/Return Air Temperature
-450 - 1850
2
40003
2
R
Outdoor Air Temperature
-450 - 1850
Integer
Integer
Integer
1
40130
1
R
Supply Blower Run Hours
2
40131
2
R
Compressor 1 Run Hours
CSV Files
At the current time ALL programs have the BMS descriptions
built into the Bacnet communications� These descriptions
can be pulled from the card under “Discovery Mode”� This
means that a points list will not be necessary for marvel
point’s description assignment�
TIPs on points to control�
There must be a great deal of thought when choosing how to
control the unit� UCA units can be independently controlled
entirely on their own. They are setup to be as efficient as
possible, the efficiency setup is kept intact when the system
maintains its sequence of operations that are carefully
programmed by the factory� There is a vast amount of manual
control points that can be controlled by a BMS system� Their
main function is for testing of equipment not for operating
them on a daily bases� It is a must to read and understand
the computer controller IOM for your unit prior to attempting
to control/monitor anything other than your system on off
and occupied unoccupied control�
Points list’s referencing
UCA will provide points list’s for the different programs on
the website� www�unitedcoolair�com/ the points lists are laid
out in a table� The table can be navigated as such in the
example below� Notice the following from left to right� On
the top of the page there is the header information� It has
listed the different protocols and what their programmed
access point number is for the variable� R/W stands for read
write capability� If there is an R/W you can write and read the
values� If there is only an R you can only read the values�
The description lists a description of what the variable is
based on its operation or control. The first row there it is
understood that the variable will turn the system on and off�
The Value range column simply shows the available values
and if necessary what those values represent� LonWorks
has their own specific tables but are laid out the same way.
