Lochinvar 90, 500 service manual Ratings, Copper-fin =B=R Rating

Page 5

Installation & Service Manual

Ratings

Copper-fin

I=B=R Rating

 

 

 

 

 

Net

Model Number

Input

 

Gross

I=B=R

 

Ratings

 

MBH

 

Output

Note: Change “N” to

 

 

 

MBH

Water,

 

 

 

 

MBH

“L” for L.P. gas models.

(Note 4)

 

 

 

 

 

 

 

 

 

 

 

(Note 1)

(Note 2)

 

Min

 

Max

 

 

 

 

CBN315

158

 

315

258

224

 

 

 

 

 

 

CBN360

180

 

360

295

257

 

 

 

 

 

 

CBN399

200

 

399

328

285

 

 

 

 

 

 

CBN500

250

 

500

410

357

 

 

 

 

 

 

Other Specifications

Boiler Water

Water

Gas

Vent

Content

 

Connections

Connections

Size

Gallons

 

 

 

 

 

 

 

 

(Note 3)

 

 

 

 

1.09

2"

3/4"

8"

 

 

 

 

1.12

2"

1"

9"

 

 

 

 

1.22

2"

1"

10"

 

 

 

 

1.30

2"

1"

10"

 

 

 

 

NOTICE Maximum allowed working pressure is located on the rating plate.

Notes:

1.

The ratings are based on standard test procedures

 

 

prescribed by the United States Department of Energy.

 

2.

Net I=B=R ratings are based on net installed radiation of

 

 

sufficient quantity for the requirements of the building and

 

 

nothing need be added for normal piping and pickup.

 

 

Ratings are based on a piping and pickup allowance of 1.15.

 

3.

Copper-fins require special gas venting. Use only the vent

 

 

materials and methods specified in the Installation and

 

 

Service Manual.

 

4.

The Copper-fin is orificed for operation up to 2000 feet

Figure A High Altitude Label Location

 

altitude. The appliance will be derated 4% per 1000 feet

 

above 2000 feet elevation. Consult the factory for

 

 

installations above 2000 feet elevation.

 

5.

Ratings have been confirmed by AHRI.

 

UNIT EQUIPPED FOR

HIGH ALTITUDE

UP TO 2000 FT.

5

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Contents Models 90,000 500,000 Btu/hr Contents Checking equipment Please read before proceedingCodes Copper-fin =B=R Rating RatingsCopper-fin Specifications Gas connection pipe Copper-fin How it worksModels CWN270 Front View Model CWN399 Front View 422 Location of unit Determine unit location3Combustion Air Direct from Outside Determine boiler location6Combustion Air from Outside Single Opening Minimum Recommended Combustion AIR Supply to Equipment Room Vent Pipe Sizes VentingConventional Negative Draft Venting System Venting Less from Ridge From Parapet Wall Vertical Vent Termination ClearancesVent Materials Masonry Chimney InstallationSidewall Venting Number7CB with Vent Damper and Vent Damper Terminal Block Automatic Vent DamperGas Supply Gas Pressure Test Gas connectionsGas Connection Manifold PressureGas Piping Install Piping to ControlClockwise to raise regulator gas pressure, counterclockwise Gas Manifold Pressure Adjustment Procedure4Gas Supply Pressure Checking Gas Supply PressureTwo Stage Burner Control System Combination Gas ValvesVenting of Combination Gas Valves Relief Valve Water Flow Switch if equippedHydronic piping Low Water Cutoff if equipped Typical Heating Boiler InstallationsMinimum Required Flow For Heating Boiler General Plumbing RulesPiping of the Boiler System System Temperature Rise ChartCirculator Pump Specifications Heat Exchanger Pressure Drop ChartWater Connections Heating Boilers Only Circulator Pump RequirementsPrimary/Secondary Boiler Piping Boiler Flow Rates Three Way Valves4Primary / Secondary Piping of a Single Boiler Primary / Secondary PipingNot to Exceed 4 Pipe DIA or MAX. of 12 Apart 8Multiple Boilers Zoned with Circulators Boiler Operating Temperature Control Terminal Strip WiringPower Venter Connection to Terminal Strip Electrical connectionsOperating Temperature Control Temperature AdjustmentPump Wiring for a Heating Boiler Temperature Control Settings Locating Temperature ControlMaximum SET Point Determination Maximum Set Point DeterminationInlet Water Temperature Sensor Temperature Control SensorsMulti-Purpose Temperature Sensor Outdoor Air Temperature SensorInstallation of a Tank Sensor Water Heater Application Outdoor Air Reset OptionInstallation of a Remote Sensor Boiler Application Additional Temperature Controls Manual Reset High Water Temperature Limit Control Blocked Vent and Flame Roll-Out / Flame Interlock SwitchInitial Start-up Pre-start ChecklistStart-up 1Gas Valve 90,000 270,000 Btu/hr Models Lighting InstructionsTo Turn OFF GAS to Appliance Safety Shutoff Test For Standing Pilot Ignition SystemOperating Instructions Intermittent Pilot Spark Ignition System F9/M9 Safety Shutoff Test for Spark Ignition Pilot SystemFreeze Protection To Turn Off Gas to ApplianceFreeze Protection for a Heating Boiler System if required Water TreatmentRequired Temperature Rise Required Temperature RiseDomestic water heaters Domestic Water Heaters 90,000 500,000 Btu/hr ModelsPump Operation Water ChemistrySoftened Water Systems 1Single water heatersingle tank 2Single water heatermultiple tank 3Multiple water heatersingle tank Thermostat Settings Remote Sensor InstallationMinimum Pump Performance Heat Exchanger5Danger Warning Pressure Only Relief Valve Water Flow Switch if equippedThermal Expansion Cathodic ProtectionService technician Maintenance and annual startupOwner maintenance See the User’s Information Manual for instructionsMaintenance Check Relief Valve Check Expansion TankCheck Control Settings Check All WiringCombustion Air Adjustment Perform Start-up and ChecksInspection and Cleaning Procedure Inspect and Clean BurnerHeat Exchanger / Burner Access Clear Area Pilot Flame Adjustment ProcedureInspection of Heat Exchanger Waterways Water Circulating PumpGas Train and Controls Review with ownerTroubleshooting Pilot or replace Schematic Diagram F1 Unit DiagramsWiring Diagram F1 Unit 90,000 270,000 Btu/hr Models315,000 399,999 Btu/hr Models Schematic Diagram F9 UnitWiring Diagram F9 Unit Diagrams Diagrams Page Revision a ECO #C06290 initial release CFA-I-S Rev a 09/10
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