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

Installation & Service Manual

Ratings

Copper-fin

I=B=R Rating

					Net
Model Number	Input			Gross	I=B=R
Model Number	Input			Gross	Ratings
	MBH			Output	Ratings
Note: Change “N” to				MBH	Water,
Note: Change “N” to					MBH
“L” for L.P. gas models.	(Note 4)				MBH
“L” for L.P. gas models.
				(Note 1)	(Note 2)
	Min		Max	(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			Vent

		Connections	Connections	Size
	Gallons	Connections	Connections


				(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	Figure A High Altitude Label Location
	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

Image 5

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

Contents

Models 90,000 500,000 Btu/hr Contents Checking equipment Please read before proceeding Codes Copper-fin =B=R Rating Ratings Copper-fin Specifications Gas connection pipe Copper-fin How it works Models CWN270 Front View Model CWN399 Front View 422 Location of unit Determine unit location 3Combustion Air Direct from Outside Determine boiler location 6Combustion 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 Clearances Vent Materials Masonry Chimney InstallationSidewall Venting Number 7CB with Vent Damper and Vent Damper Terminal Block Automatic Vent Damper Gas Supply Gas Pressure Test Gas connectionsGas Connection Manifold Pressure Gas Piping Install Piping to Control Clockwise to raise regulator gas pressure, counterclockwise Gas Manifold Pressure Adjustment Procedure 4Gas Supply Pressure Checking Gas Supply Pressure Two 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 Rules Piping of the Boiler System System Temperature Rise Chart Circulator Pump Specifications Heat Exchanger Pressure Drop ChartWater Connections Heating Boilers Only Circulator Pump Requirements Primary/Secondary Boiler Piping Boiler Flow Rates Three Way Valves 4Primary / Secondary Piping of a Single Boiler Primary / Secondary Piping Not 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 connections Operating Temperature Control Temperature AdjustmentPump Wiring for a Heating Boiler Temperature Control Settings Locating Temperature ControlMaximum SET Point Determination Maximum Set Point Determination Inlet Water Temperature Sensor Temperature Control SensorsMulti-Purpose Temperature Sensor Outdoor Air Temperature Sensor Installation 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 Switch Initial Start-up Pre-start ChecklistStart-up 1Gas Valve 90,000 270,000 Btu/hr Models Lighting Instructions To Turn OFF GAS to Appliance Safety Shutoff Test For Standing Pilot Ignition System Operating Instructions Intermittent Pilot Spark Ignition System F9/M9 Safety Shutoff Test for Spark Ignition Pilot SystemFreeze Protection To Turn Off Gas to Appliance Freeze Protection for a Heating Boiler System if required Water Treatment Required Temperature Rise Required Temperature RiseDomestic water heaters Domestic Water Heaters 90,000 500,000 Btu/hr Models Pump 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 Exchanger 5Danger Warning Pressure Only Relief Valve Water Flow Switch if equippedThermal Expansion Cathodic Protection Service technician Maintenance and annual startupOwner maintenance See the User’s Information Manual for instructions Maintenance Check Relief Valve Check Expansion Tank Check Control Settings Check All WiringCombustion Air Adjustment Perform Start-up and Checks Inspection and Cleaning Procedure Inspect and Clean BurnerHeat Exchanger / Burner Access Clear Area Pilot Flame Adjustment ProcedureInspection of Heat Exchanger Waterways Water Circulating Pump Gas Train and Controls Review with owner Troubleshooting Pilot or replace Schematic Diagram F1 Unit DiagramsWiring Diagram F1 Unit 90,000 270,000 Btu/hr Models 315,000 399,999 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