1. Loop Water Controller Overview
MCS LWC MAGNUM
REV. C - 11/28/2018

2. MCS LWC MAGNUM ORIGINAL CONCEPTS
Designed to Control Loop Systems
Build to be generic and handle many configurations of Loop Controllers
Type of Loop, WATER WITH PUMP, AIR WITH FANS is selected
Enable ice making / cooling stages
Enable heating stages
Handle multiple VFD (variable-frequency drive)
Allows for peak hour scheduling
Provide control based upon loop (similar to circuit control)
Could be used as a front end to other MCS Controllers

3. MCS LWC MAGNUM OVERVIEW
Provides a general loop control system
Provides flexibility with multiple options
Control each loop independently
Actual control of heating/cooling stages or provide run enable indication to other loops or systems
Provides meaningful status of the system

4. MCS LWC MAGNUM Supports up to 8 individual loops
Supports up to 12 pumps or fans per loop
Supports 16 cooling/ice making an heating stages per loop
Supports 1 VFD(variable frequency drive) for pumps or fans per loop with unique control sensor
Supports 1 VFD for heating stages per loop
Supports 1 VFD for cooling stages per loop

5. LWC MCS-CONFIG SETUP
Since each loop can be named it is suggested that the set points names relate to the loop name.

6. MCS-CONFIG- Setpoints
Color Coded Setpoints match color code of Chillers

7. MCS-CONFIG- Setpoints cont.
Control set points # for loop 1
These set points will be repeated for the other loops: (note the different coloring of the # column on next page and also in MCS-CONNECT)
LOOP 2 Set points #46-70
LOOP 3 Set points #71-95
LOOP 4 Set points #96-120
LOOP 5 Set points #
LOOP 6 Set points #
LOOP 7 Set points #
LOOP 8 Set points #
Set points # are available to be used in user logic points.

8. MCS-CONNECT – LOOP STATUS
Color Coded Chillers
Unit status

9. MCS LWC Magnum
Supports control of loops on: peak load schedules, on or off all day or based on daily schedule
Supports 2 daily schedules per loop
Supports separate run/stop and run override per loop
Supports individual setpoints per loop
Supports individual state names (status) per loop

10. MCS LWC Magnum Supports up to 80 Relay Outputs
Supports up to 112 Sensors Inputs
Supports up 28 Analog Outputs
Supports 255 Set points
Supports storage of last 100 alarms
Supports 1008 History Samples for all inputs & outputs

11. LWC Options (Specified by loop)
Individual setpoints for each loop
Individual loops controlled on: - Run/Stop indicator (digital and/or network) - Run/Stop indicator plus temperature
Low Ambient control: - None - Loop off - Run only pumps - Enable loop to run

12. LWC Options (Specified by loop)
Control of primary and backup pumps or fans with rotation
Control of cooling loops and enable rotation
Separate Control Zones with ROC control logic for cooling and heating

13. LWC Schedule Schedule: - Run loop on a day schedule
ON ALL DAY OFF ALL DAY ON SCHEDULE
Do not run on peak demand hours

14. LWC Options Loop override indicator
Ice making options, control on: - Temperature only - Ice level in the tank or - Both temperature and ice level
Increase Heat Target based upon Ambient
Adjust Cool & Heat Targets based upon sensor input
Adjust Pump Targets based upon sensor input

15. All of the standard Magnum advantages!
The Magnum master board may handle entire applications (large systems with ice making capability may require additional boards):
Number of Inputs (16: 12 either analog or digital & 4 fixed digital )
Number of Outputs (10)
Number of Analog Outputs (4)
Loop enabling based upon RO
Magnum Display:
Designed to show Loop Control data, not chiller data
Loops are identified by their name
Loop & pump status is displayed
VFD speed is displayed
Graphing capability
All of the standard Magnum advantages!

16. LWC Sample Applications
Provides pump control with heating and cooling with ice making (Edgewood School)
Provides pump control with VFD and backup rotation
Provides fan control with VFD - multiple fans with backup and rotation
Provides pump control and turn on run enable indicator to other chiller packages
Provides control to an outside air system and modulate the damper, enable cooling or heating as needed
Provides control of units with cooling, heating and reheat functions

17. LWC Review Edgewood School
Three loops Loop #1, building loop
Run/Stop with override
No temperature control on start
Ambient temperature option
Day of week schedule
Control on supply temperature to the building
2 pumps max 1 control on pressure differential with rotation
1 cooling stage with valve (control temperature to building)

18. LWC Review Edgewood School
Three loops Loop #1 determines which chiller
(loop#2 or #3) will be enabled.
Loop #2 & 3, chiller loops:
Run/Stop with override
No temperature control on start
No ambient temperature option
Peak Off Schedule
Control on ice tank temperature
1 pumps max 1 control on pressure differential with rotation
1 cooling stage enable chiller to make ice

19. LWC Edgewood New Application
Control two class rooms independently
Individual run/stop & schedules
1 pump with cooling (valve) & heating stages per room
Set up 2 loops to control – 1 per room
PROBLEM: temperature OK but humidity was too high
Added a temperature sensor before heating coil per room
Added a loop per room with enthalpy control

20. LWC Edgewood New Application
Control the following 2 chiller packages:
Rotate the chiller packages
1 pump
1 chiller enable
1 condenser pump
1 condenser fan
And if running package cannot maintain the cooling temperature after 5 minutes enable the second unit
And if unit running fails switch to the other unit

21. LWC Edgewood- MCS CONTROLLER

22. LWC Edgewood- MCS CONTROLLER

23. For additional information please visit our website www. mcscontrols
For additional information please visit our website
Or call MCS at
5580 Enterprise Pkwy.
Fort Myers, FL 33905
Office:
Fax: