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

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

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

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

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

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

MCS-CONFIG- Setpoints cont. Control set points #21- 45 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 #121-145 LOOP 6 Set points #146-170 LOOP 7 Set points #171-195 LOOP 8 Set points #196-220 Set points #221-255 are available to be used in user logic points.

MCS-CONNECT – LOOP STATUS Color Coded Chillers Unit status

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

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

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

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

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

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

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!

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

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)

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

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

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

LWC Edgewood- MCS CONTROLLER

LWC Edgewood- MCS CONTROLLER

For additional information please visit our website www. mcscontrols For additional information please visit our website www.mcscontrols.com Or call MCS at 239-694-0089 5580 Enterprise Pkwy. Fort Myers, FL 33905 Office: 239-694-0089 Fax: 239-694-0031 www.mcscontrols.com