Lochinvar 673 1 Copper-Fin Boiler Dimensions & Specifications, Standard Features, Venting, Input

Copper-Fin®Boiler Dimensions & Specifications

Copper-Fin Heating Boiler

Dimensions & Specifications

Input

Heating

Net

Model

Max

Thermal Capacity I=B=R

Gas

Vent

Shipping

Number MBH Efficiency

MBH

MBH

A

B

C

D

E

F

G

Conn.

Size

Weight

CBN0497

495

81%

401

349

31-1/2”

45-1/4”

22-1/4”

12-1/2” 9-1/2”

22-3/4” 29-1/2”

1-1/4”

6”

440

CBN0647

645

81%

522

454

31-1/2”

56-3/4”

22-1/4”

12-1/2” 9-1/2”

28-1/2” 29-1/2”

1-1/4”

8”

510

CBN0747

745

81%

603

524

31-1/2”

64”

22-1/4”

12-1/2” 9-1/2”

32”

29-1/2”

1-1/4”

8”

550

CBN0987

985

81%

798

694

36”

48-1/4”

33-1/2”

15-3/4” 8-1/2”

8-1/2” 33-3/4”

2”

10”

845

CBN1257

1255

81%

1,017

884

36”

58-1/2”

33-1/2”

15-3/4” 9-1/2”

10-1/2” 33-3/4”

2”

12”

905

CBN1437

1435

81%

1,162

1,010

36”

68-3/4”

33-1/2”

15-3/4” 10-1/2”

10-1/2” 33-3/4”

2”

12”

1050

CBN1797

1795

81%

1,454

1,264

36”

82-1/4”

33-1/2”

15-3/4”

11”

11”

33-3/4”

2”

14”

1193

CBN2067

2065

81%

1,673

1,455

36”

92-1/2”

33-1/2”

15-3/4”

11”

11”

33-3/4”

2”

14”

1350

Notes: Change ‘N’ to ‘L’ for LP gas models. No deration on LP models.

Performance data based on manufacturer test results.

Water connections for models CB 0497-747 are 2” NPT on 6-1/2” centers. Water connections for models CB 0987-2067 are 2-1/2” NPT on 11-1/4” centers.

Standard Features

• 81% Thermal Efficiency	• Flow Switch
• Electronic Temperature Control	• 24 Volt Control System
• Fan Assisted Combustion	• BMS Terminal Strip
• Sealed Combustion Chamber	• Combustion Air Filter
• Stainless Steel Burners	• Freeze Protection
• Low NOx Operation Exceeds the most	• 10 Year Limited Warranty on Heat
Stringent Air Quality Requirements	Exchanger (See warranty for details)
• ASME Copper Finned Tube	Optional Equipment
Heat Exchanger
• 160 psi Working Pressure	• Alarm Bell
• Gasketless Heat Exchanger Design	• Contacts on any Failure
• Pump Relay w/ Delay	• Contacts for Air Louvers
• Down Stream Test Valve	• Cupro-Nickel Heat Exchanger
• Referenced Gas Valves	• High & Low Gas Pressure Switch
• Loch-Heat Ceramic Tile	w/ Manual Reset
Combustion Chamber	• Outdoor Reset Control
• Hot Surface Ignition	• Manual Reset Low Water Cut-Off
• Adjustable High Limit w/ Manual Reset	w/ test
• ASME Pressure Relief Valve	• Stack Frame
• Temperature & Pressure Gauge	• MP2 Sequencer

Available Firing Systems

M9 Hot Surface Ignition with Electronic Supervision (Standard)

M13 GE GAP/FM/CSD1

M7 California Code

Venting

•Outdoor Vent Cap

Registered under U.S. Patent # 5,989,020

For Ease In Ordering

By Model Number

C B	N	0 4 9 7	M 9
	.		FIRING

This boiler is a 495,000 Btu/hr,

natural gas Copper-Fin. It has M9 firing controls

Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000

www.Lochinvar.com

CBN-07(Replaced CBN-06 3/10) FG-10M-5/11-Printed in U.S.A.