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LAARS’ ProtoNode Startup Guide

Page 36 of 43

Appendix C.

Vendor Information - Laars

Appendix C.1. Sola Modbus RTU Mappings to BACnet MS/TP, BACnet/IP, Metasys N2 and LonWorks

Point Name

Modbus

Register

BACnet

Object

Type

BACnet

Object

N2 Data

Type

Point

Address

Lon Name

Lon SNVT

Demand source

40007

nvoXDemSrc

SNVT_count_inc_f

Outlet sensor

40008

nvoXOutletSensor

SNVT_count_inc_f

Firing rate

40009

nvoXFiringRate

SNVT_count_inc_f

Fan speed

40010

nvoXFanSpeed

SNVT_count_inc_f

Flame signal

40011

nvoXFlameSignal

SNVT_count_inc_f

Inlet sensor

40012

nvoXInletSensor

SNVT_count_inc_f

DHW sensor

40013

nvoXDHWSensor

SNVT_count_inc_f

S5 sensor

40014

nvoXS5Sensor

SNVT_count_inc_f

Stack sensor

40015

nvoXStackSensor

SNVT_count_inc_f

4 - 20 mA remote ctl input

40016

nvoXRemCtlInput

SNVT_count_inc_f

Active CH setpoint

40017

nvoXAct_CH_SP

SNVT_count_inc_f

Active DHW setpoint

40018

nvoXAct_DHW_SP

SNVT_count_inc_f

Active LL setpoint

40019

nvoXAct_LL_SP

SNVT_count_inc_f

Analog modulation input

40022

nvoXAnaModInput

SNVT_count_inc_f

Burner control status

40033

nvoXBrnrCtlStat

SNVT_count_inc_f

Lockout code

40035

nvoXLockoutCode

SNVT_count_inc_f

Alarm reason

40036

nvoXAlmReason

SNVT_count_inc_f

Hold code

40041

nvoXHoldCode

SNVT_count_inc_f

CH status

40065

nvoXCH_Status

SNVT_count_inc_f

CH setpoint source

40066

nvoXCH_SP_Src

SNVT_count_inc_f

CH heat demand

40067

nvoXCH_HeatDmnd

SNVT_count_inc_f

CH burner demand

40068

nvoXCH_BrnrDmnd

SNVT_count_inc_f

CH requested rate

40069

nvoXCH_ReqRate

SNVT_count_inc_f

DHW status

40081

nvoXDHW_Status

SNVT_count_inc_f

DHW Priority Count

40083

nvoXDHW_PriCnt

SNVT_count_inc_f

DHW heat demand

40084

nvoXDHW_HeatDmnd

SNVT_count_inc_f

DHW burner demand

40085

nvoXDHW_BrnrDmnd

SNVT_count_inc_f

DHW requested rate

40086

nvoXDHW_ReqRate

SNVT_count_inc_f

DHW pump status

40101

nvoXDHW_PmpStat

SNVT_count_inc_f

LAARS’ ProtoNode Startup Guide

Page 37 of 43

DHW Pump Idle Days Count

40105

nvoXDHW_PpIdDyCt

SNVT_count_inc_f

System pump status

40106

nvoXSysPmpStatus

SNVT_count_inc_f

System Pump Idle Days Count

40108

nvoXSysPmpIdDyCt

SNVT_count_inc_f

Boiler pump status

40109

nvoXBlrPmpStatus

SNVT_count_inc_f

Boiler Pump Idle Days Count

40111

nvoXBlrPmpIdDyCt

SNVT_count_inc_f

Burner run time

40131/40132

nvi/nvoXBrnrRunTime

SNVT_count_inc_f

DHW pump cycle count

40135/40136

nvi/nvoXDHWPmpCycCnt SNVT_count_inc_f

System pump cycle count

40137/40138

nvi/nvoXSysPmpCycCnt

SNVT_count_inc_f

Boiler pump cycle count

40139/40140

nvi/nvoXBlrPmpCycCnt

SNVT_count_inc_f

Controller Cycle Count

40143/40144

nvoXCtllerCycCnt

SNVT_count_inc_f

Controller run time

40145/40146

nvoXCtllerRunTim

SNVT_count_inc_f

Lead lag master status

40161

nvoXLdLgMstrStat

SNVT_count_inc_f

Lead lag slave status

40162

nvoXLdLgSlavStat

SNVT_count_inc_f

Lead Lag Master Setpoint Source

40163

nvoXLdLgMstSPSrc

SNVT_count_inc_f

Lead Lag Master Pump Demand

40164

nvoXLdLgMstPpDmd

SNVT_count_inc_f

Outdoor temperature

40171

nvoXOutdoorTmp

SNVT_count_inc_f

CH setpoint

40212

nvi/nvoXCH_SP

SNVT_count_inc_f

CH TOD setpoint

40213

nvi/nvoXCH_TOD_SP

SNVT_count_inc_f

DHW Demand Switch

40449

nvi/nvoXDHW_DmdSwitc SNVT_count_inc_f

Outlet high limit setpoint

40465

nvi/nvoXOutltHiLimSP

SNVT_count_inc_f

Lead Lag setpoint

40547

nvi/nvoXLeadLagSP

SNVT_count_inc_f

Leadlag modulation sensor

40559

nvi/nvoXLdLgModSensr

SNVT_count_inc_f

Warm weather shutdown setpoint

40629

nvi/nvoXWrmWthrShtSP

SNVT_count_inc_f

Lead Lag active service

40769

nvoXLdLgActSrvc

SNVT_count_inc_f

Slave 1 State

40771

nvoXSlv1State

SNVT_count_inc_f

Slave 1 firing rate

40773

nvoXSlv1FirRat

SNVT_count_inc_f

Slave 2 State

40775

nvoXSlv2State

SNVT_count_inc_f

Slave 2 firing rate

40777

nvoXSlv2FirRat

SNVT_count_inc_f

Slave 3 State

40779

nvoXSlv3State

SNVT_count_inc_f

Slave 3 firing rate

40781

nvoXSlv3FirRat

SNVT_count_inc_f

Slave 4 State

40783

nvoXSlv4State

SNVT_count_inc_f

Slave 4 firing rate

40785

nvoXSlv4FirRat

SNVT_count_inc_f

Slave 5 State

40787

nvoXSlv5State

SNVT_count_inc_f

Slave 5 firing rate

40789

nvoXSlv5FirRat

SNVT_count_inc_f

Slave 6 State

40791

nvoXSlv6State

SNVT_count_inc_f

LAARS Heating Systems

Page 36 of 43

Industrial Way, Rochester, NH, USA 03867

•

(800) 900-9276

•

www.Laars.com

Содержание ProtoNode FPC-N34

Страница 1: ... N34 and FPC N35 hardware and how to install it The instructions are effective for the above as of July 2015 800 900 9276 Fax 800 559 1583 Customer Service Service Advisors 20 Industrial Way Rochester NH 03867 603 335 6300 Fax 603 335 3355 Applications Engineering 1869 Sismet Road Mississauga Ontario Canada L4W 1W8 905 238 0100 Fax 905 366 0130 www Laars com Document Revision 9 C Auto Selector Tem...

Страница 2: ...ide direct support If LAARS needs to escalate the concern they will contact FieldServer for assistance Support Contact Information LAARS Service 20 Industrial Way Rochester NH 03867 Phone 800 900 9276 LAARS Service Phone 603 335 6300 Fax 800 559 1583 Email info LAARS com Website www laars com LAARS Heating Systems Page 2 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com ...

Страница 3: ...s 3 pin RS 485 port to the Field Protocol cabling or connect ProtoNode FPC N35 s 2 pin LonWorks port to the Field Protocol cabling Section 3 4 6 Connect Power to ProtoNode s 6 pin connector Section 3 5 7 BACnet IP or Modbus TCP IP FPC N34 Use the ProtoNode s embedded tool which is accessed with a browser referred to in this manual as the Web Configurator to change the IP address No changes to the ...

Страница 4: ...Statement LonMark International is the recognized authority for certification education and promotion of interoperability standards for the benefit of manufacturers integrators and end users LonMark International has developed extensive product certification standards and tests to provide the integrator and user with confidence that products from multiple manufacturers utilizing LonMark devices wo...

Страница 5: ...tch for the Modbus RS 485 Device Network 18 3 3 BACnet MS TP or Metasys N2 FPC N34 Wiring Field Port to BMS Network 19 3 4 LonWorks FPC N35 Wiring Field Port to LonWorks Network 19 3 5 Power Up ProtoNode 20 4 BACnet IP and Modbus TCP IP Change the Protonode IP Address 21 4 1 Connect the PC to ProtoNode via the Ethernet Port 21 4 2 BACnet IP and Modbus TCP IP Setting IP Address for Field Network 22...

Страница 6: ...Switch on the ProtoNode N34 left and ProtoNode N35 right 17 Figure 11 Modbus RS 485 End Of Line Termination Switch on the ProtoNode N34 left and 18 Figure 12 Connection from ProtoNode to RS 485 Field Network 19 Figure 13 RS 485 BMS Network EOL Switch 19 Figure 14 LonWorks Terminal 19 Figure 15 Required current draw for the ProtoNode 20 Figure 16 Power Connections 20 Figure 17 Web Configuration Scr...

Страница 7: ...us protocols are stored within the ProtoNode and are selectable via DIP switches for fast and easy installation It is not necessary to download any configuration files to support the required applications The ProtoNode is pre loaded with tested Profiles Configurations for the supported devices 1 BACnet is a registered trademark of ASHRAE 2 Metasys is a registered trademark of Johnson Controls Inc ...

Страница 8: ...etting on all of the devices connected to the ProtoNode All of the Serial devices connected to ProtoNode MUST have the same Baud Rate Data Bits Stop Bits and Parity settings Figure 2 specifies the device serial port settings required to communicate with the ProtoNode Serial Port Setting Device Protocol Modbus RTU Baud Rate 38400 Parity None Data Bits 8 Stop Bits 1 Figure 2 Modbus RTU COM Settings ...

Страница 9: ...et IP and BACnet MS TP Sola 2 Deg_F On Off Off Off BACnet IP and BACnet MS TP Sola 3 Deg_F Off On Off Off BACnet IP and BACnet MS TP Sola 4 Deg_F On On Off Off BACnet IP and BACnet MS TP Sola 5 Deg_F Off Off On Off BACnet IP and BACnet MS TP Sola 6 Deg_F On Off On Off BACnet IP and BACnet MS TP Sola 7 Deg_F Off On On Off BACnet IP and BACnet MS TP Sola 8 Deg_F On On On Off BACnet IP and BACnet MS ...

Страница 10: ... Off On On BACnet IP and BACnet MS TP Sola 6 Deg_C On Off On On BACnet IP and BACnet MS TP Sola 7 Deg_C Off On On On BACnet IP and BACnet MS TP Sola 8 Deg_C On On On On See Appendix B 1 for the Configuration DIP switch settings for 1 through 8 Sola to Metasys N2 and Modbus TCP IP NOTE When setting DIP Switches please ensure that power to the board is OFF 2 3 1 2 LonWorks DIP Switch Settings The fo...

Страница 11: ...P MAC Address from 128 to 255 Addresses from 128 to 255 are Slave Addresses and can not be discovered by BMS Front Ends that support auto discovery of BACnet MS TP devices Set DIP switches A0 A7 to assign MAC Address for BACnet MS TP for the ProtoNode FPC N34 Please refer to Appendix D 1 for the complete range of MAC Addresses and DIP switch settings NOTE When setting DIP Switches please ensure th...

Страница 12: ...evices are o Device 1 Instance 50 011 o Device 2 Instance will then be 50 011 Device Instance 1 1 50 012 o Device 3 Instance will then be 50 012 previous Device Instance 1 50 013 2 3 3 1 BACnet MS TP or BACnet IP Assigning Specific Device Instances With the default Node_Offset value of 50 000 the Device Instances values generated will be within the range of 50 001 to 50 127 The values allowed for ...

Страница 13: ... is set for 9600 DIP Switches B0 B3 are disabled for Metasys N2 on ProtoNode FPC N34 B0 B1 B2 B3 NOTE When setting DIP Switches please ensure that power to the board is OFF 2 3 5 1 Baud Rate DIP Switch Selection Baud B0 B1 B2 B3 9600 On On On Off 19200 Off Off Off On 38400 On On Off On 57600 Off Off On On 76800 On Off On On Figure 6 BMS Baud Rate Factory default setting 38 400 Figure 5 Baud Rate D...

Страница 14: ...ING PROTONODE TO DEVICES 3 1 ProtoNode FPC N34 and FPC N35 Showing Connection Ports Figure 7 ProtoNode BACnet FPC N34 upper and ProtoNode FPC N35 lower LAARS Heating Systems Page 14 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com ...

Страница 15: ...RS 485 GND Pin 3 is not typically connected Pins 4 through 6 are for power Do not connect power wait until Section 4 Device Pins ProtoNode Pin Pin assignment Pin RS 485 Pin 1 RS 485 Pin RS 485 Pin 2 RS 485 Pin GND Pin 3 RS 485 GND Power In Pin 4 V Power In Pin 5 V Frame Ground Pin 6 FRAME GND Figure 8 Power and RS 485 Connections The LAARS Gateway LER and RER Startup Guide Page 15 of 43 20 Industr...

Страница 16: ...Phoenix connector Figure 9 Connect terminal B2 RS 485 to Pin 2 A on the ProtoNode s 6 pin Phoenix connector Pin C Ground does not need to be grounded to the ProtoNode SYSTEM OPERATOR DISPLAY A B C A B C 1 2 3 4 5 6 8 7 24 VAC COM 24 VAC COM1 COM2 Figure 9 Sola wiring using Display LAARS Heating Systems Page 16 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com ...

Страница 17: ... straddle the 4 pins closest to the outside of the board of the ProtoNode See Figure 10 Only turn biasing ON o IF the BMS cannot see more than one device connected to the ProtoNode o AND you have checked all the settings Modbus COM settings wiring and DIP switches To turn biasing ON move the 2 RED biasing jumpers to straddle the 4 pins closest to the inside of the board of the ProtoNode RS 485 Bia...

Страница 18: ...otoNode o On short cabling runs the EOL switch does not to need to be turned ON If the ProtoNode is placed at one of the ends of the trunk set the blue EOL jumper to the ON position straddling the pins closest to the outside of the board of the ProtoNode Always leave the single Red Jumper in the A position default factory setting Modbus RS 485 EOL Switch Leave in A Position Figure 11 Modbus RS 485...

Страница 19: ... default setting from the factory is OFF switch position right side o To enable the EOL Termination turn the EOL switch ON switch position left side 3 4 LonWorks FPC N35 Wiring Field Port to LonWorks Network Connect ProtoNode to the field network with the LonWorks terminal using a twisted pair non shielded cable LonWorks has no polarity BMS RS 485 Wiring ProtoNode Pin Pin Assignment RS 485 Pin 1 R...

Страница 20: ...24VDC VAC 30VDC FPC N34 Typical 170mA 100mA 80mA FPC N34 Maximum 240mA 140mA 100mA FPC N35 Typical 210mA 130mA 90mA FPC N35 Maximum 250mA 170mA 110mA Note These values are nominal and a safety margin should be added to the power supply of the host system A safety margin of 25 is recommended Figure 15 Required current draw for the ProtoNode Power to ProtoNode ProtoNode Pin Pin Assignment Power In P...

Страница 21: ...lt IP Address of ProtoNode is 192 168 1 24 Subnet Mask is 255 255 255 0 If the PC and ProtoNode are on different IP Networks assign a static IP Address to the PC on the 192 168 1 xxx network Go to Right click on Local Area Connection Properties Highlight Select Use the following IP address Click twice The LAARS Gateway LER and RER Startup Guide Page 21 of 43 20 Industrial Way Rochester NH USA 0386...

Страница 22: ...he IP address of the ProtoNode the default address is 192 168 1 24 The Web Configurator will be displayed as the landing page Figure 17 From the Web Configurator landing page click on the Diagnostics Debugging button in the bottom right side of the page to access the FST Web GUI Figure 17 Web Configuration Screen LAARS Heating Systems Page 22 of 43 20 Industrial Way Rochester NH USA 03867 800 900 ...

Страница 23: ...ay field Note If the ProtoNode is connected to a router the IP Gateway of the ProtoNode should be set to the IP address of the router that it is connected to Click the System Restart button at the bottom of the page to apply changes and restart the ProtoNode Unplug Ethernet cable from PC and connect the ProtoNode to the network hub or router Record the IP address assigned to the ProtoNode for futu...

Страница 24: ...n that Device Instance Node_Offset A Bank Setting o Then Node_Offset required Device Instance desired A Bank Setting For example o Device 1 has a Modbus Node ID of 1 o Device 2 has a Modbus Node ID of 2 o Device 3 has a Modbus Node ID of 3 o A Bank DIP switches setting 11 o Desired Device Instance for 1 st device 1 011 o Node_Offset required 1 011 A Bank Setting 1 011 11 1 000 o The Node_Offset va...

Страница 25: ...XIF 6 1 1 Instructions to Download XIF File from ProtoNode FPC N35 Using Browser Connect a Cat 5 Ethernet cable Straight through or Cross Over between the PC and ProtoNode The Default IP Address of ProtoNode is 192 168 1 24 Subnet Mask is 255 255 255 0 If the PC and ProtoNode are on different IP Networks assign a static IP Address to the PC on the 192 168 1 xxx network For Windows XP Go to Right c...

Страница 26: ...otoCessor fserver xif Example 192 168 1 24 fserver xif If the web browser prompts you to save file save the file onto the PC If the web browser displays the xif file as a web page save the file on your PC as fserver xif Figure 21 Sample of Fserver XIF File Being Generated LAARS Heating Systems Page 26 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com ...

Страница 27: ...m activation twoweek and fill in all the information Enter Vendor Code Laars2BACnet Once completed the email address that was submitted will be registered Go to the following web site download and install the CAS BACnet Explorer to your PC http www chipkin com technical resources cas bacnet explorer Open CAS BACnet Explorer in the CAS Activation form enter the email address that was registered and...

Страница 28: ...ke sure that the BACnet MS TP box is green o Click on discover o Check all 4 boxes o Click Send 7 2 2 CAS BACnet BACnet IP Setup See Section 4 1 to set the IP address and subnet of the PC that will be running the CAS Explorer Connect a straight through or cross Ethernet cable from the PC to ProtoNode In CAS Explorer do the following o Click on settings o Check the BACnet IP box and uncheck the BAC...

Страница 29: ...t to the ProtoNode Click on Diagnostics and Debugging Button then click on view and then on connections If there are any errors showing on the Connection page please refer to Appendix A 2 for the relevant wiring and settings Figure 24 Error messages screen The LAARS Gateway LER and RER Startup Guide Page 29 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com 1604 Document 423...

Страница 30: ...ierra Monitor Corporation Appendix A 3 Appendix A 3 Take Diagnostic Capture With the FieldServer Utilities Once the Diagnostic Capture is complete email it to support sierramonitor com The Diagnostic Capture will allow us to rapidly diagnose the problem Ensure that FieldServer Toolbox is Loaded on the PC that is currently being used or download FieldServer Toolbox zip on the Sierra Monitor Corpora...

Страница 31: ... Click on the diagnose icon of the desired device o Select full Diagnostic o If desired the default capture period can be changed o Click on Start Diagnostic The LAARS Gateway LER and RER Startup Guide Page 31 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com 1604 Document 4236E ...

Страница 32: ... 2 Send Log o Once the Diagnostic test is complete a zip file will be saved on the PC o Choose open to launch explorer and have it point directly at the correct folder Send the Diagnostic zip file to support sierramonitor com LAARS Heating Systems Page 32 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com ...

Страница 33: ...main Web Configuration screen update the Network Number with the network_nr field and click submit The default value is 50 There is a Network number field for BACnet IP and a Network number field for BACnet MS TP please fill in the appropriate box Figure 26 Web Configurator showing setting the network number for BACnet The LAARS Gateway LER and RER Startup Guide Page 33 of 43 20 Industrial Way Roc...

Страница 34: ...up It will turn off after 5 seconds A steady red light will indicate there is a system error on ProtoNode If this occurs immediately report the related system error shown in the error screen of the GUI interface to FieldServer Technologies for evaluation RX The RX LED will flash when a message is received on the host port TX The TX LED will flash when a message is sent on the host port PWR This is...

Страница 35: ... Off Off Off Off Off Off Metasys N2 Sola 6 Deg_F On Off On Off On Off Off Off Off Off Off Metasys N2 Sola 7 Deg_F Off On On Off On Off Off Off Off Off Off Metasys N2 Sola 8 Deg_F On On On Off On Off Off Off Off Off Off Metasys N2 Sola 1 Deg_C Off Off Off On On Off Off Off Off Off Off Metasys N2 Sola 2 Deg_C On Off Off On On Off Off Off Off Off Off Metasys N2 Sola 3 Deg_C Off On Off On On Off Off O...

Страница 36: ...oNode Startup Guide DHW Pump Idle Days Count 40105 AI 30 AI 30 nvoXDHW_PpIdDyCt SNVT_count_inc_f System pump status 40106 AI 31 AI 31 nvoXSysPmpStatus SNVT_count_inc_f System Pump Idle Days Count 40108 AI 32 AI 32 nvoXSysPmpIdDyCt SNVT_count_inc_f Boiler pump status 40109 AI 33 AI 33 nvoXBlrPmpStatus SNVT_count_inc_f Boiler Pump Idle Days Count 40111 AI 34 AI 34 nvoXBlrPmpIdDyCt SNVT_count_inc_f B...

Страница 37: ... high limit setpoint 40465 AV 49 AO 49 nvi nvoXOutltHiLimSP SNVT_count_inc_f Lead Lag setpoint 40547 AV 50 AO 50 nvi nvoXLeadLagSP SNVT_count_inc_f Leadlag modulation sensor 40559 AV 51 AO 51 nvi nvoXLdLgModSensr SNVT_count_inc_f Warm weather shutdown setpoint 40629 AV 52 AO 52 nvi nvoXWrmWthrShtSP SNVT_count_inc_f Lead Lag active service 40769 AI 53 AI 53 nvoXLdLgActSrvc SNVT_count_inc_f Slave 1 ...

Страница 38: ...42 Off On Off On Off On Off Off 43 On On Off On Off On Off Off 44 Off Off On On Off On Off Off 45 On Off On On Off On Off Off Address A0 A1 A2 A3 A4 A5 A6 A7 46 Off On On On Off On Off Off 47 On On On On Off On Off Off 48 Off Off Off Off On On Off Off 49 On Off Off Off On On Off Off 50 Off On Off Off On On Off Off 51 On On Off Off On On Off Off 52 Off Off On Off On On Off Off 53 On Off On Off On O...

Страница 39: ...f Off Off On 138 Off On Off On Off Off Off On Address A0 A1 A2 A3 A4 A5 A6 A7 139 On On Off On Off Off Off On 140 Off Off On On Off Off Off On 141 On Off On On Off Off Off On 142 Off On On On Off Off Off On 143 On On On On Off Off Off On 144 Off Off Off Off On Off Off On 145 On Off Off Off On Off Off On 146 Off On Off Off On Off Off On 147 On On Off Off On Off Off On 148 Off Off On Off On Off Off ...

Страница 40: ...n Off On On 219 On On Off On On Off On On 220 Off Off On On On Off On On 221 On Off On On On Off On On 222 Off On On On On Off On On 223 On On On On On Off On On 224 Off Off Off Off Off On On On 225 On Off Off Off Off On On On 226 Off On Off Off Off On On On 227 On On Off Off Off On On On 228 Off Off On Off Off On On On 229 On Off On Off Off On On On 230 Off On On Off Off On On On 231 On On On Off...

Страница 41: ...The LAARS Gateway LER and RER Startup Guide Page 41 of 43 20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com 1604 Document 4236E ...

Страница 42: ...SD EN61000 4 3 EMC EN61000 4 4 EFT Humidity 5 90 RH non condensing Specifications subject to change without notice Figure 28 Specifications Appendix E 1 1 Compliance with UL Regulations For UL compliance the following instructions must be met when operating ProtoNode The units shall be powered by listed LPS or Class 2 power supply suited to the expected operating temperature range The interconnect...

Страница 43: ... This Limited Warranty also will not apply to interconnecting cables or wires consumables or to any damage resulting from battery leakage In all cases Sierra Monitor Corporation s responsibility and liability under this warranty shall be limited to the cost of the equipment The purchaser must obtain shipping instructions for the prepaid return of any item under this warranty provision and complian...

Страница 44: ...20 Industrial Way Rochester NH USA 03867 800 900 9276 www Laars com ...

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