Interfacing Multiple Appliances, Table W

Lochinvar 000 through 2, 1 warranty Interfacing Multiple Appliances, Table W

Page 46

INTERFACING MULTIPLE

APPLIANCES

PARALLEL CONNECTION

FIG. 59 E-Bus Connection to Controls

Connection between multiple Intelli-Finappliances is accomplished via an E-Bus connection. An E-Bus terminal is provided on the rear of each appliance. The minimum specification for the communication wire is for a Level IV,

22AWG (0.034 mm2) plenum or non-plenum rated (as applicable), unshielded, twisted pair, stranded wire. Use plenum rated wire where required. See “Wire Requirements” for a listing of manufacturers who supply communication wire meeting this specification. The twisted pair wire is used to make daisy chain connections between the E-Bus terminals on multiple appliances. The E-Bus connection uses a Free Topology Transceiver (FTT) to support a polarity-insensitive free topology wiring scheme for

star, loop and/or bus wiring. The maximum number of nodes per segment is 60. The maximum number of nodes in a two-segment FTT network is 120, when using a repeater between the two segments. Consult factory for additional information on interface wiring of multiple Intelli-Finappliances connected to an EMS.

FTT networks are flexible and convenient to install and maintain. However, it is imperative to plan the network layout and to create and maintain accurate documentation. Careful planning and up to date documentation facilitates compliance verification and future FTT network expansion. It also minimizes unknown or inaccurate wire run lengths, node to node (device to device) distances, node counts, total wire length, inaccurate repeater locations, and misplaced or missing terminations.

Wire to the terminal blocks as follows:

NOTE:

When attaching two or more wires to the same terminal, twist wires together (see Fig. 60). Deviation from this rule can result in improper electrical contact.

TABLE - W

Daisy-Chain Doubly Terminated FTT Network Bus Topology Specifications

	Maximum FTT network Bus length	Maximum node-to-node length
Wire/Cable Type	for segment(s) in feet (meters)	for segment(s) in feet (meters)
__________________________________	_________________________________	___________________________________
	_
Level IV 22 AWG unshielded, twisted		3773 (1150)
pair, stranded communications wire (use	4593 (1400)	3773 (1150)
pair, stranded communications wire (use	4593 (1400)
plenum rated wire where required)

TABLE - X

Singly Terminated FTT Network Bus Topology Specifications

	Maximum FTT network Bus length	Maximum node-to-node length
Wire/Cable Type	for segment(s) in feet (meters)	for segment(s) in feet (meters)
__________________________________	_________________________________	___________________________________
	_
Level IV 22 AWG unshielded, twisted		1312 (400)
pair, stranded communications wire (use	1640 (500)	1312 (400)
pair, stranded communications wire (use	1640 (500)
plenum rated wire where required)

Image 46

Contents

Special Instructions To Owner WarrantyIFB/IFW-i&s-05 Table of Contents What to do if YOU Smell GAS Checking EquipmentDo not Owner WarningTable a Installation Procedure Location of UnitRecommended Service Clearances Clearances from Combustible ConstructionCombustion Air Direct from Outside AIR Supply to Mechanical Room Table BMinimum Recommended Combustion 500 in2 3226 cm2 667 in2 4303 cm2 000 in2 12,903 cm2Construction AIR Filter Construction Air FilterTable D Construction AIR Filter Kits Table CVenting Category IV Flue Pipe SizesCategory IV Flue Pipe Materials Category IV Positive Pressure Venting SystemCategory IV Venting Venting Guidelines for a Category IV VentGeneral Category IV Vent Termination Clearances Drain Tee InstallationExceed a maximum of 100 equivalent feet 30.5 m in length Masonry Chimney Installations Vertical Venting TerminationsSidewall Vent Cap Kits Sidewall Venting TerminationsTable E Sidewall VentLocation of a Sidewall Vent Termination Direct Vent INTELLI-VENT SystemsAir Inlet Table FDirect Vent and Intelli-Vent Flue Air Inlet Pipe Sizes Length of Air Inlet PipeVertical Direct Vent Systems Combined Combustion Air Inlet PointsMultiple Vertical Direct Vent Installations Horizontal Direct VentTable G Sidewall Combustion AIR InletLocation of a Sidewall Air Inlet Cap Multiple Horizontal Direct Vent Installations These areMaximum Length of an Intelli-Vent System Table HCombined Air Inlet Points Air Inlet Sidewall Input Flue Pipe Btu/hr SizeBtu/hr Size Cap Kit Horizontal INTELLI-VENT with Vertical Combustion AIRAir Inlet Sidewall Input Flue Pipe 500,000 SVK3026Vertical Combustion Horizontal INTELLI-VENT AIR Inlet Location of a Rooftop Air Inlet CapTable J GAS Connection GAS Supply GAS Pressure TestTable K Table LTable M Recommended Gas Pipe Size Single Appliance InstallationsMultiple Appliance Installations Gas Pipe Size Chart Table NGAS Piping GAS Manifold Pressure AdjustmentInstall Piping to Control Checking GAS Supply PressureChecking Manifold GAS Pressure Water Connections Water ConnectionsInlet and Outlet Connections Secondary Heat Exchanger Primary Heat ExchangerMinimum Pipe Size Requirements Integral Bypass Bypass Valve SynchronizationOptional Intermittent Pump Operation Bypass Piping AssemblyIntegral Circulator Bypass Initial Set-up of Maximum Water FlowTable P Minimum Water TemperaturesBtu/hr Input Temperature Rise Bypass OperationLOW Water Cutoff Water Flow SwitchTable Q GAS Train and ControlsRelief Valve Diaphragm GAS Valve Ratio GAS ValveJacket Assembly Electrical ConnectionsAccess to Components and Controls Front Control Panel LocationsVariable Frequency Drive Transformer and Relay LocationsLOW AIR Pressure Switch High GAS Pressure Switch LOW GAS Pressure Switch OptionalExcel Be used as a diagnostic indicator Table S Temperature AdjustmentDefault Values Pre-programmed in the Excel To Activate the Manual OverrideTable T Display Default Values Password FunctionConfiguring Command Display Accessing the SIX Changeable Points from Command DisplaySet Point Temp Calculated Set PointTotal Run Time Sequencing TypeCommand Display Data Screen Status Point Operational Modes Status PointsTable U Hot Surface Igniter OnOutdoor Reset Function Selections Optional on Heating Boilers OnlyMultiple Appliance Installations Efficiency Optimized with Time EqualizationInterfacing Multiple Appliances Singly Terminated FTT Network Bus Topology SpecificationsTable W Wire Termination for E-Bus Connection Additional Components Used to Interface Multiple AppliancesHigh Water Temperature Limit Control Typical Building Management System DiagramHOT Surface Ignition System Service PartsIgnition Module Lockout Functions Ignition and Control Timings Diagnostic Status IndicationTable Y Table ZBurner OPERATION/DIAGNOSTIC LIGHTS, Resets and SwitchesIndicator Table AACombustion AIR Blower Combustion Air Blower and Transition ChamberTable BB Condensate ManagementSystem Optional Condensate Drain Location On RearCondensate Trap Installation Condensate TestingReplenishing the Neutralizer Install Condensate Trap Lighting InstructionsTo Turn OFF GAS to Appliance Ignition System CheckoutSequence of Operation Heat Transfer ProcessMaintenance End of SequenceBurner Removal and Cleaning Burner MaintenanceBurner Cleaning Procedure Location of Primary Heat ExchangerSecondary Heat Exchanger Inspection Lubrication Freeze Protection Water Treatment Heating Boiler InstallationsFreeze Protection for a Heating Boiler System If Required Water Connections Heating Boilers onlyBoiler Circulator Pump Limitations Primary Loop Circulator Pump SpecificationsPiping Lengths Circulator Pump OperationMinimum Boiler Water Temperatures PRIMARY/SECONDARY Boiler PipingMaximum Flow for Heating Boiler Boiler Temperature Rise Chart Table DDTable CC Btu/hr Input Maximum FlowTypical Heating Boiler Installations TEMPERATURE/PRESSURE GaugePlacing the Boiler Operation Boiler Operating Temperature Control Installation with a Chilled Water SystemBoiler Operation Water Velocity Control Typical Water Heater Piping with Storage TankTable FF Table EEMaximum Flow Rate Btu/hr Input Water Chemistry Piping Multiple Unit Installations Single Water Heater Piping with Two Storage TanksHeat Exchanger Table GGPump Operation Common ManifoldThermostat Settings Table HHThermal Expansion Optional Relief ValveCathodic Protection Ladder Diagram PWM Wiring Diagram

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Lochinvar 000 through 2, 1 warranty Interfacing Multiple Appliances, Table W