Lochinvar 399, 999 - 750, CF-CH(E)-i&s-08 Hydronic Heating Boilers and Domestic Water Heaters

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Hydronic Heating Boilers and Domestic Water Heaters

Table of Contents

General Product Information . . . . . . . . . . . . . . . . . . . . . . . . .3 Special Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Locating Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Clearances from Combustible Construction . . . . . . . . . .6 Base for Combustible Floors . . . . . . . . . . . . . . . . . . . . .7 Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Pump Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Hydronic System Antifreeze . . . . . . . . . . . . . . . . . . . . . .7 Outdoor Boiler Installation . . . . . . . . . . . . . . . . . . . . . . .7 Shutdown and Draining . . . . . . . . . . . . . . . . . . . . . . . . .8 Freeze Protection for a Heating Boiler System . . . . . . . . . . .8 Combustion and Ventilation Air . . . . . . . . . . . . . . . . . . .8 Combustion Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Combustion Air Options . . . . . . . . . . . . . . . . . . . . . . . . .9 Exhaust Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Venting Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Vertical Vent Termination Clearances and Location . .11 Sidewall Vent Termination Clearances and Location . .12 Combustion Air Inlet Piping . . . . . . . . . . . . . . . . . . . . .13 Combined Air Inlet Points . . . . . . . . . . . . . . . . . . . . . .15 Vent System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Barometric Damper Location . . . . . . . . . . . . . . . . . . . .15 1. Conventional Negative Draft Venting . . . . . . . . . . .16

2. Vertical DirectAire™ Venting . . . . . . . . . . . . . . . . . . .17

3. Sidewall Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4. Horizontal DirectAire™ Venting . . . . . . . . . . . . . . . .21

5. Direct Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

6. Outdoor Installation Venting . . . . . . . . . . . . . . . . . .26 Connecting to Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . .28 Gas Pressure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Connecting Gas Piping to Unit . . . . . . . . . . . . . . . . . . .28 Gas Train and Controls . . . . . . . . . . . . . . . . . . . . . . . . .29 Combination Gas Valves . . . . . . . . . . . . . . . . . . . . . . .30 Venting of Combination Gas Valves . . . . . . . . . . . . . .30 Checking Gas Supply Pressure . . . . . . . . . . . . . . . . . . .30 Gas Manifold Pressure Adjustment . . . . . . . . . . . . . . .31 Connecting to Water Supply . . . . . . . . . . . . . . . . . . . . . . . .32 Inlet and Outlet Connections . . . . . . . . . . . . . . . . . . . .32 Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Water Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Low Water Cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 Connecting to Electrical Supply . . . . . . . . . . . . . . . . . . . . .33 Boiler System Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Primary/Secondary Boiler Piping . . . . . . . . . . . . . . . . .35

Table of Contents

Low Temperature Return Water Systems . . . . . . . . . . .36 Radiant Floor and Snow Melt Heating Systems . . . . . .37 Boiler Flow Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Boiler Bypass Requirements . . . . . . . . . . . . . . . . . . . . .38 Temperature/Pressure Gauge . . . . . . . . . . . . . . . . . . . . .38 Placing the Boiler in Operation . . . . . . . . . . . . . . . . . . .38 Installation with a Chilled Water System . . . . . . . . . . .39 Boiler Operating Temperature Control . . . . . . . . . . . . .39

Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Terminal Strip Connection Options . . . . . . . . . . . . . . .40

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Lighting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . .42

To Turn Off Gas To Appliance . . . . . . . . . . . . . . . . . . .43

Programming Temperature Control . . . . . . . . . . . . . . .43

Quick Programming Overview . . . . . . . . . . . . . . . . . . .43

Adjust Menu Setting Descriptions . . . . . . . . . . . . . . . .44

Access Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Placement of Sensors . . . . . . . . . . . . . . . . . . . . . . . . . .46

Staging Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Hot Surface Ignition System . . . . . . . . . . . . . . . . . . . . . . . .49

Operation and Diagnostic Lights . . . . . . . . . . . . . . . . . . . . .51

Domestic Water Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Water Velocity Control . . . . . . . . . . . . . . . . . . . . . . . . .52

Water Chemistry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Pipe Size Requirements . . . . . . . . . . . . . . . . . . . . . . . .53

Circulating Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Minimum Pump Performance . . . . . . . . . . . . . . . . . . . .54

Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

Potable Hot Water Temperature Control Settings . . . . .54

Location of Cold Water Supply Piping Connections . .55

High Water Temperature Limit Control . . . . . . . . . . . .55

Optional Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . .55

Thermal Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Cathodic Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Cleaning and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . .56

Combustion and Ventilation Air . . . . . . . . . . . . . . . . . .57

Adjusting Differential Air Pressure . . . . . . . . . . . . . . . .58

Servicing Hot Surface Igniter and Ignition Module . . .59

Ignition System Checkout . . . . . . . . . . . . . . . . . . . . . . .59

Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

Troubleshooting Guide 399,999 - 750,000 Btu/hr Models . . . . . . .62

Troubleshooting Guide 990,000 - 2,070,000 Btu/hr Models . . . . . .63

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

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Contents Domestic Water Heaters Hydronic Heating Boilers and Domestic Water Heaters General Product Information UnpackingSafety Information Installation Installation Clearances from Combustible ConstructionFreeze Protection Outdoor Boiler InstallationLocation Pump OperationCombustion and Ventilation AIR Shut-Down and DrainingFreeze Protection for a Heating Boiler System if required Combustion Air FilterCombustion Air Options Outside Combustion Air, No DuctsCombustion Air from Interior Space General Information VentingExhaust Fans Vertical Vent Termination Clearances and LocationSidewall Vent Termination Clearances and Location ChimneySidewall Air Inlet Combustion Air Inlet PipingLength of Air Inlet Pipe Vertical Rooftop Air Inlet ClearancesBarometric Damper Location Vent System OptionsCombined Air Inlet Points Flue Outlet Piping Conventional Negative Draft VentingNegative Draft Vertical DirectAire Venting Vertical Vent Termination Clearances and LocationInstallation Vent Kits Venting of Flue ProductsSidewall Venting Termination Sidewall VentingSidewall Fan Sidewall Venting Without FanVenting Guidelines Masonry Chimney Installation Horizontal DirectAire VentingVent Kits Direct VentingVertical DV Venting Termination Flue Pipe Materials Connecting the Air Inlet Pipe to the UnitHorizontal DV Venting Termination Combustion Air Inlet PipingAir Inlet Piping Materials Sealing PVC, CPVC, ABS, Dryer Vent, and Flex Duct Vent PipeOutdoor Installation Venting MaximumOutdoor Vent/Air Inlet Location Outdoor Vent Cap KitGas Piping Connecting to GAS SupplyConnecting Gas Piping to Unit Gas Pressure TestBtu/hr Distance From Meter in feet Gas Train and ControlsTABLE-J Input 51-100 101-200 201-300 301-500Venting of Combination Gas Valves Combination Gas ValvesChecking Gas Supply Pressure Table L Gas Manifold Pressure AdjustmentMultiple Unit Installations Gas Supply Pipe Sizing Connecting to Water Supply Low Water Cutoff Water Flow SwitchRelief Valve Circulator Pump Requirements General Plumbing RulesWater Connections Heating Boilers Only Pump Installation and Maintenance Heat Exchanger Pressure Drop ChartCirculator Pump Specifications Primary/Secondary Boiler PipingInput LTV Valve Kit Btu/hr Low Temperature Return Water SystemsTable O LTV Valve Kits Radiant Floor and Snow Melt Heating Systems 10ºF 20ºF 30ºF 40ºFPlacing the Boiler in Operation Temperature/Pressure GaugeBoiler Flow Rate Boiler Bypass RequirementsInstallation with a Chilled Water System Boiler Operating Temperature ControlWater Treatment Terminal Strip Connection OptionsFor Your Safety Read Before Operating Remote ON/OFF Boiler or Water HeaterOperation To Turn Off Gas To Appliance Power UpQuick Programming Overview Standard Btu/hr ModelsTABLE-Q Adjust Menu Setting DescriptionsAdjust Menu Settings for Operating Modes TABLE-RProgramming Buttons Ignition Systems and StagesOperating Modes Placement of Sensors Access LevelsTemperature Control Staging Logic Graphic SymbolsProgramming For Mode 1, Boiler Operation Remote Mounting of Sensors Programming For Mode 2, Water Heating OperationProgramming For Mode 3, Sequenced Operation TABLE-SHot Surface Igniter and Ignition Control Module Error and Warning MessagesHOT Surface Ignition System Hot Surface Ignition Control ModuleIgnition Control Diagnostic Codes Diagnostic Status IndicationAccess to Internal Control Panel Removing the Control PanelIgnition and Control Timings Operation and Diagnostic LightsStatus LED Diagnostic Codes Hot Surface Ignition Module Timings NominalWater Velocity Control Required Temperature RiseTemperature Rise Chart Water ChemistryTABLE-X Pipe Size RequirementsCirculating Pump 399,999 750,000 Btu/hr ModelsHeat Exchanger Potable Hot Water Temperature Control SettingsMinimum Pump Performance TABLE-YThermal Expansion High Water Temperature Limit ControlOptional Relief Valve Location of Cold Water Supply Piping ConnectionsAppliance Area Flue Gas Passageways Cleaning ProceduresBurner Removal and Cleaning Water Circulating PumpCombustion and Ventilation Air Heat Exchanger CleaningElectrical Adjustment Procedure Adjusting Differential Air PressureSet Up Procedure Servicing Hot Surface Igniter and Ignition Module Ignition System CheckoutSequence of Operation Ignition Troubleshooting Guide 990,000 2,070,000 Btu/hr Models Domestic Water Heaters Hydronic Heating Boilers Ladder Diagram 399,999 750,000 BTU/HR Models Hydronic Heating Boilers and Domestic Water Heaters Installation Ladder Diagram 990,000 2,070,000 BTU/HR Models Models Wiring Diagram Hydronic Heating Boilers and Domestic Water Heaters BTU/HR Models
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Manual 76 pages 58.86 Kb

399, CF-CH(E)-i&s-08, 999 - 750 specifications

Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 is a cutting-edge boiler designed for commercial heating applications. With its robust construction and high efficiency, this model stands out in the crowded market of heating solutions.

One of the main features of the Lochinvar 999 - 750 is its exceptional thermal efficiency rating. The unit incorporates advanced condensing technology that allows it to recover heat from flue gases, which helps in achieving efficiency levels of up to 99%. This efficiency not only reduces energy consumption but also lowers operational costs, making it an excellent investment for businesses looking to minimize their carbon footprint.

The boiler is designed to provide a powerful output of 750 kW, ensuring it meets the heating demands of larger buildings or commercial spaces. Its capacity makes it suitable for a range of applications including schools, hospitals, and industrial facilities. Moreover, the unit features a built-in cascading system that enables multiple boilers to be connected, enhancing system reliability and flexibility.

In terms of technology, the Lochinvar 999 - 750 is equipped with a user-friendly touchscreen interface. This innovative control system allows operators to monitor and adjust settings with ease, providing real-time performance data and alerts for maintenance needs. The intelligent controls optimize operation to match the heating load, further enhancing energy efficiency.

Safety is a top priority with this model. It is built with multiple safety features such as automatic shut-off valves, pressure relief valves, and flame monitoring systems, ensuring safe operation under various conditions. The unit also adheres to stringent industry standards and regulations, making it a reliable choice for commercial applications.

Furthermore, the Lochinvar 999 - 750 is designed with serviceability in mind. Its compact footprint and accessible components simplify maintenance, reducing downtime and associated costs. The unit also supports a variety of fuel sources, including natural gas, propane, and biodiesel, providing flexibility to meet different facility requirements.

In summary, the Lochinvar 999 - 750, CF-CH(E)-i&s-08,399 represents a blend of efficiency, reliability, and safety in commercial heating. Its advanced technologies and thoughtful design make it a powerful solution for various heating needs, making it an ideal choice for businesses aiming for excellence in energy management and operational efficiency.
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