Laars M4-LHS - Installation Manual User Manual

Document 4232Modulating and Condensing / Non-condensing Boiler controlM4-LHSHybrid Multi-Boiler ControlHTC# 059295-00 A WARNINGFOR YOUR SAFETY: This

HT# 059295-00 A10 M4-LHS Installation and Operation Manual INSTALLATIONEach of the M4-LHS or Extension consists of three primary enclosure component

HT# 059295-00 AM4-LHS Installation and Operation Manual 11INSTALL THE SENSORSSystem Sensor Installation• Only use the System sensor (CA002500 or eq

HT# 059295-00 A12 M4-LHS Installation and Operation Manual WIRING• All wiring must enter the enclosure through the bottom knockouts.• Class 1 vo

HT# 059295-00 AM4-LHS Installation and Operation Manual 13• When the Shutdown input is enabled by closing the dry contact, or when the Tstat input

HT# 059295-00 A14 M4-LHS Installation and Operation Manual Wiring the Boilers• When wiring Condensing and Non-Condensing boilers make sure that th

HT# 059295-00 AM4-LHS Installation and Operation Manual 15Connecting to the Extensions and 4-20mA EMS Interface ALERTTo set the Extension to a specif

HT# 059295-00 A16 M4-LHS Installation and Operation Manual Connecting to BACnet Interface Module• The M4-LHS can communicate to BACnet MSTP networ

HT# 059295-00 AM4-LHS Installation and Operation Manual 17-------- SETTINGS ---- Season Winter System Target 140oF <System Settings> <Maint

HT# 059295-00 A18 M4-LHS Installation and Operation Manual - EMS INPUT MODE -Disable EnableBACK ▲ ▼ SAVE-EMS 4ma SETPOINT -70 oF[ ]BAC

HT# 059295-00 AM4-LHS Installation and Operation Manual 19STARTUP SETTINGSProgram Change Switch SettingTo be able to change the M4-LHS settings the P

HT# 059295-00 A2 M4-LHS Installation and Operation Manual Hybrid Logic Overview . . . . . . . . . . . . . . . . . . 3Modulating Lo

HT# 059295-00 A20 M4-LHS Installation and Operation Manual EMS 4mA and 20mA Set Points4mA: can be set from 50°F/ 10°C to 200°F/93°C Default: 70°F/

HT# 059295-00 AM4-LHS Installation and Operation Manual 21Switch DelayAdjustablefrom0.0to12.0Hours Default:0.5hoursButton: MENU/<System St

HT# 059295-00 A22 M4-LHS Installation and Operation Manual HYBRID MODULATING BOILER SETTINGSModulating Output Type4-20mA,0-10V,1-10V(Custom)Outp

HT# 059295-00 AM4-LHS Installation and Operation Manual 23MODULATING BOILER SETTINGSBoiler NumberAdjustablefrom1to15 Default:1Button: MENU/<

HT# 059295-00 A24 M4-LHS Installation and Operation Manual STARTUP SETTINGS (CONTINUED)Prove/Indirect Domestic Hot Water (DHW) PriorityProve,DHWPr

HT# 059295-00 AM4-LHS Installation and Operation Manual 25Boost Mode(Not Available in Setback Mode)30Minutes,Disabled Default:DisableButton: MEN

HT# 059295-00 A26 M4-LHS Installation and Operation Manual BACNET MSTP COMMUNICATION MENU-------- SETTINGS ---- Season Winter System Target 140oF &

HT# 059295-00 AM4-LHS Installation and Operation Manual 27OPERATING SETTINGSProgram Change Switch SettingTo be able to change the M4-LHS settings, th

HT# 059295-00 A28 M4-LHS Installation and Operation Manual ALERTTo be able to change the M4-LHS settings the Program/Run Switch must be set to Prog

HT# 059295-00 AM4-LHS Installation and Operation Manual 29 ALERTTo be able to change the M4-LHS settings the Program/Run Switch must be set to Progra

HT# 059295-00 AM4-LHS Installation and Operation Manual 3HYBRID LOGIC OVERVIEWIn response to new advancement in condensing boiler design and size, ma

HT# 059295-00 A30 M4-LHS Installation and Operation Manual OffsetAdjustablefrom50Fº/28Cºto-50Fº/-28Cº Default:0Fº/0CºButton: MENU/System Targ

HT# 059295-00 AM4-LHS Installation and Operation Manual 31SYSTEM SETTINGSButton: MENU/<System Settings>Settings 1 and Settings 2 menus pr

HT# 059295-00 A32 M4-LHS Installation and Operation Manual • The System Run-On time should be set based on the size and type of the boilers and pu

HT# 059295-00 AM4-LHS Installation and Operation Manual 33MODULATING BOILER OPERATING SETTINGSGainAdjustablefrom-10to+10 Default:0Button: MENU/

HT# 059295-00 A34 M4-LHS Installation and Operation Manual STAGING BOILER OPERATING SETTINGSReaction TimeAdjustablefrom1to10minutes Default:

HT# 059295-00 AM4-LHS Installation and Operation Manual 35Avoiding Conicting Boiler LimitsThe temperature limits set on the boilers MUST be set cons

HT# 059295-00 A36 M4-LHS Installation and Operation Manual DAY - NIGHT SCHEDULE(Available when "Shutdown or Tstat" is selected from the Sh

HT# 059295-00 AM4-LHS Installation and Operation Manual 37Output Modulation Trim(Available for modulating boilers only)Adjustablefrom-1.0to+1.0

HT# 059295-00 A38 M4-LHS Installation and Operation Manual BOILER STATUSThe M4-LHS boiler status gives immediate access to each boiler stages or mod

HT# 059295-00 AM4-LHS Installation and Operation Manual 39OD= 55oF SYS=143oF <<A>> B 67% 20%STAGE ◄ ► MENUSTAGE A SETTINGSMode Auto &

HT# 059295-00 A4 M4-LHS Installation and Operation Manual MODULATING LOGIC OVERVIEWThe Modulation PID logic is capable of controlling multiple modul

HT# 059295-00 A40 M4-LHS Installation and Operation Manual Auto The M4-LHS will control the boiler’s operation to maintain the desired Set Point.

HT# 059295-00 AM4-LHS Installation and Operation Manual 41TROUBLESHOOTINGSENSOR INPUTSDisplay shows Sensor OPEN or SHORT When the display shows sen

HT# 059295-00 A42 M4-LHS Installation and Operation Manual Too Little Heat• ResetRatioandOffset- If reduced heat occurs only in certain weathe

HT# 059295-00 AM4-LHS Installation and Operation Manual 43SPECIFICATIONSVoltageInput: . . . . . . . . . . . . . . . . . . . .

HT# 059295-00 A44 M4-LHS Installation and Operation Manual HYBRID - OUTDOOR RESET - BACNET VARIABLE LISTHybrid Object ID Object Type Object Value Ob

HT# 059295-00 AM4-LHS Installation and Operation Manual 45MODULATION - OUTDOOR RESET - BACNET VARIABLE LISTHybrid Object ID Object Type Object Value

HT# 059295-00 A46 M4-LHS Installation and Operation Manual MODULATION - SET POINT - BACNET VARIABLE LISTHybrid Object ID Object Type Object Value Ob

HT# 059295-00 AM4-LHS Installation and Operation Manual 47BACNET PICS STATEMENTProduct Model Number Protocol Revision Software Version Firmware Vers

HT# 059295-00 A48 M4-LHS Installation and Operation Manual SYSTEMABCD12RUNPROGRAMDO NOT APPLY ANY VOLTAGETO INPUT TERMINALS3456789101112131514171618

HT# 059295-00 AM4-LHS Installation and Operation Manual 49Boiler 1Boiler 2Boiler 3Boiler 4Boiler 1Boiler 24 - 20 mAModulatingSignal OutputsOutdoor Se

HT# 059295-00 AM4-LHS Installation and Operation Manual 5OUTDOOR RESET CONCEPTThe M4-LHS has multiple operating modes that satisfy most hydronic syst

HT# 059295-00 A50 M4-LHS Installation and Operation Manual SYSTEMABCD12RUNPROGRAMDO NOT APPLY ANY VOLTAGETO INPUT TERMINALS3456789101112131514171618

HT# 059295-00 A48 M4-LHS Installation and Operation Manual SYSTEMABCD12RUNPROGRAMDO NOT APPLY ANY VOLTAGETO INPUT TERMINALS3456789101112131514171618

HT# 059295-00 AM4-LHS Installation and Operation Manual 49Boiler 1Boiler 2Boiler 3Boiler 4Boiler 1Boiler 24 - 20 mAModulatingSignal OutputsOutdoor Se

HT# 059295-00 A50 M4-LHS Installation and Operation Manual SYSTEMABCD12RUNPROGRAMDO NOT APPLY ANY VOLTAGETO INPUT TERMINALS3456789101112131514171618

HT# 059295-00 AM4-LHS Installation and Operation Manual 51Boiler 3Boiler 4Boiler 1Boiler 2Boiler 3Boiler 4Boiler 1Boiler 24 - 20 mAModulatingSignal O

20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • FAX 603.335.33551355 Kuehner Drive, Simi Valley, CA 93063 • 800.900.9267 • FAX 800.559.1583 (S

HT# 059295-00 A6 M4-LHS Installation and Operation Manual PART NUMBER # CA00920012RUNPROGRAMDO NOT APPLY ANY VOLTAGETO INPUT TERMINALS34567891011121

HT# 059295-00 AM4-LHS Installation and Operation Manual 7PART NUMBER # CA004400Ext AM4ExtFULL MODULATION SEQUENCING EXTENSIONFHJPowerEGICommKMOLNPCAU

HT# 059295-00 A8 M4-LHS Installation and Operation Manual FEATURESLaars designed the M4-LHS with Hydronic building heating, using both condensing an

HT# 059295-00 AM4-LHS Installation and Operation Manual 9Setback or Day/Night SchedulingTwo Setback modes are available for the M4-LHS:• The Day/Ni