Lochinvar 000 - 2, 495, 065 service manual Installation with a Chilled Water System, Table L

Page 26

Hydronic Heating Boilers and Domestic Water Heaters

INSTALLATION

Continued

Sludge formed as the result of excessive oxygen in the system can restrict water flow resulting in a premature boiler failure. Any boiler damage due to excessive oxygenation is non- warrantable.

Installation with a Chilled Water System

Pipe refrigeration systems in parallel. Install duct coil downstream at cooling coil. Where the hot water heating boiler is connected to a heating coil located in the air handling units which may be exposed to refrigeration air circulation, the boiler piping system must be equipped with flow control valves or other automatic means to prevent gravity circulation of the boiler water during the cooling cycle. The coil must be vented at the high point and hot water from the boiler must enter the coil at this point. Due to the fast heating capacity of the boiler, it is not necessary to provide a ductstat to delay circulator operation. Also, omit thermostat flow checks as the boiler is cold when heating thermostat is satisfied. This provides greater economy over maintaining standby heat (see Figure 29).

EXPANSION

TANK

HEATING AND

COOLING COIL

LOW WATER

 

 

 

 

 

 

PUMP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLOW SWITCH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 28 - Boiler with Low Temperature Bypass Piping

OUT IN

BOILER

GAS

SUPPLY

WATER SUPPLY

CHILLER

Figure 29 - Installation with a Chilled Water System

TABLE - L

System Temperature Rise Chart Based on Btu/hr Input

 

 

System Temperature Risased on Btu/hr Input

 

￿T

 

￿T

 

 

￿T

 

￿T

 

￿T

 

￿T

 

 

 

 

10ºF

 

20ºF

 

30ºF

 

40ºF

50ºF

 

60ºF

 

 

 

 

 

 

 

 

Input

Output

GPM FT. HD GPM FT.HD

GPM FT.HD

GPM FT.HD

GPM FT.HD

GPM FT.HD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

495,000

400,950

80+

*

40

4.0

27

1.6

20

0.7

16

0.6

13

0.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

645,000

522,450

129+

*

52

5.1

35

3.0

26

1.6

21

0.8

17

0.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

745,000

603,450

149+

*

60

*

40

4.0

30

2.3

24

1.2

20

0.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

985,000

831,600

197+

*

80

5.2

53

2.4

40

1.4

32

1.0

27

0.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1,255,000

1,058,400

251+

*

102+

*

68

4.3

51

2.5

41

1.6

34

1.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1,435,000

1,209,000

288+

*

116+

*

78

6.0

58

3.7

47

2.2

39

1.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1,795,000

1,512,000

360+

*

146+

*

97+

*

73

6.2

58

4.2

49

2.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2,065,000

1,738,800

414+

*

168+

*

112+

*

84

8.7

67

6.0

56

4.5

 

+These flow rates exceed recommended flow rates of boiler. If these system temperature rises are used, an external piping by-pass must be installed. * These foot head calculations exceed the maximum allowable flow rate of the boiler. Requires Cupro-Nickel heat exchanger.

26

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Contents Domestic Water Heaters Save this manual for future referenceHydronic Heating Boilers and Domestic Water Heaters Safety Information General Product InformationHydronic Heating Boilers and Domestic Water Heaters Product Identification Front and Rear ViewBase for Combustible Floors InstallationClearances from Combustible Construction Shut-Down and Draining Outdoor Boiler InstallationHydronic System Antifreeze Pump OperationCombustion Air Filter Installing Combustion Air FilterFreeze Protection for a Heating Boiler System if required Combustion Air Options One OpeningExhaust Fans Installation VentingGeneral Information Venting SupportTABLE-A Flue Pipe Sizes Vent System OptionsTable B TABLE-CFlue Outlet Piping Conventional Negative Draft VentingNegative Draft Common Venting SystemsOutdoor Installation Venting Masonry Chimney InstallationsOutdoor Vent/Air Inlet Location Table DOutdoor Vent Kits Outdoor Vent KitInput Max Min Gas Pressure TestGas Piping Connecting Gas Piping to Unit Gas Train and ControlsVenting of Combination Gas Valves Combination Gas ValvesChecking Gas Supply Pressure Gas Manifold Pressure Adjustment Measuring Gas Supply Pressure at Combination Gas ValveNET Manifold Pressure Regulator Pressure Less Front Chamber PressureRelief Valve Water Flow SwitchLow Water Cutoff If EquippedNominal AMP Draw Data Terminal Strip Connection OptionsTable J Water Connections Heating Boilers Only General Plumbing RulesPrimary/Secondary Boiler Piping Input LTV Valve Kit Btu/hr Low Temperature Return Water SystemsRadiant Floor and Snow Melt Heating Systems Table L Installation with a Chilled Water SystemSystem Temperature Rise Chart Based on Btu/hr Input 10ºF 20ºF 30ºF 40ºF 50ºF 60ºFBoiler Bypass Requirements Temperature/Pressure GaugeBoiler Flow Rate Filling the SystemOperation Lighting InstructionsLocating Temperature Control To Turn Off Gas To ApplianceSet Point Temperature Control SettingsTable M Maximum Set Point DeterminationShutdown Outdoor Air Reset OptionHigh-Fire Offset Outdoor Air Max O.A. MaxBoiler Application Temperature Control SensorsPlacement of Sensors Water Heater ApplicationHot Surface Igniter and Ignition Control Module Remote Wire ConnectionWire Maximum Gauge Table NIgnition and Control Timings Diagnostic Status IndicationHot Surface Ignition Control Module Ignition Module Lockout FunctionsTable P Status LED Diagnostic CodesTable O Domestic Water Heaters Required Temperature RiseTemperature Rise Chart Water Velocity ControlCirculating Pump Pipe Sizing ChartWater Chemistry Table RDomestic Water Potable Hot Water Temperature Control SettingsDomestic Water Temperatures Minimum Pump PerformanceOptional Relief Valve High Water Temperature Limit ControlLocation of Cold Water Supply Piping Connections Thermal ExpansionCleaning Maintenance Flue Gas Passageways Cleaning ProceduresCombustion and Ventilation Air Heat Exchanger CleaningElectrical Adjustment Procedure 495,000 1,255,000 Btu/hr Models Cleaning and MaintenanceSet Up Procedure Servicing Hot Surface Igniter and Ignition Module Sequence of Operation Ignition System CheckoutManual Reset High-Limit Thermostat Power SupplyON/OFF Rocker Switch Safety Device TerminalsHeat Transfer Process Gas Valves, Burner Electronic Temperature ControllerIgnition Module Schematic Diagram BTU/HRHI-LIMITS PWR SW Main Unit GAS Valves Blower Pressure Switch Wiring Diagram 15AMPSControl BOX Connections Control BOX Connections

000 - 2, 065, 495 specifications

Lochinvar 000 - 2,495,065 is a cutting-edge water heating solution designed to meet the needs of modern residential and commercial applications. This high-efficiency unit combines advanced engineering with robust technologies, providing unmatched performance and reliability.

One of the standout features of the Lochinvar 000 - 2,495,065 is its high thermal efficiency, which often exceeds 95%. Utilizing condensing technology, the unit harnesses heat from exhaust gases, allowing it to recover otherwise lost energy, thereby reducing operational costs significantly. This efficiency not only lowers energy bills for users but also lessens the environmental impact by minimizing greenhouse gas emissions.

The Lochinvar 000 - 2,495,065 is equipped with a lightweight stainless steel heat exchanger. This construction ensures exceptional corrosion resistance and longevity, extending the lifespan of the unit while maintaining optimal performance. The stainless steel design also contributes to faster heating times, making it ideal for high-demand environments.

In terms of control technologies, the Lochinvar 000 - 2,495,065 features an intuitive touchscreen interface. This user-friendly design allows for seamless operation, real-time monitoring, and easy adjustments to temperature settings. Additionally, it facilitates remote diagnostics, promoting efficient maintenance and reducing downtime, which is crucial for busy facilities.

For enhanced safety, the Lochinvar 000 - 2,495,065 includes multiple safety mechanisms, such as over-temperature protection, flame safeguard, and leak detection systems. These safety features ensure secure operation and give users peace of mind.

Moreover, the unit is compatible with various fuel sources, including natural gas and propane, making it versatile and adaptable to different infrastructure requirements. This flexibility ensures that the Lochinvar 000 - 2,495,065 can be integrated into various settings, from residential homes to large commercial buildings.

Another significant characteristic is its compact design, allowing for easy installation in tight spaces. The footprint of the Lochinvar 000 - 2,495,065 makes it an ideal solution for applications where space is at a premium, without compromising on performance.

In summary, Lochinvar 000 - 2,495,065 represents a premium choice for water heating solutions, merging advanced technologies, high efficiency, and user-friendly design to cater to a wide range of heating needs while ensuring safety and sustainability.
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