Lochinvar CWN0495PM User Manual

COPPER-FIN

®

WATER HEATER

Submittal Sheet

CW-Sub-11

COPPER-FIN® GAS WATER HEATERS (MODELS CW495-2066)

JOB NAME ______________________________________________________________________
LOCATION ______________________________________________________________________
ARCH./ENGR.____________________________________________________________________
MECH. CONTRACTOR ___________________________________________________________
MODEL NO. _____________________________________________________________________
TYPE GAS ______________________________________________________________________
Btu/hr INPUT____________________________________________________________________
RECOVERY RATE IN GPH_______________________________________@________°F RISE
NOTES

Standard Features

• 81% Thermal Efficiency

• Electronic Temperature Control

• Fan Assisted Combustion

• Sealed Combustion Chamber

• Stainless Steel Burners

• Low NOx Operation Exceeds the most
Stringent Air Quality Requirements

• ASME Copper Finned Tube Heat Exchanger

• 160 psi Working Pressure

• Gasketless Heat Exchanger Design

• All Bronze Circulating Pump

• Pump Delay w/ Freeze Protection

• Remote Tank Thermostat

• Glass-Lined Water Surfaces

• Referenced Gas Valves

• Loch-Heat Ceramic Tile Combustion Chamber

• Hot Surface Ignition

• ASME Temperature & Pressure Relief Valve

• Adjustable High Limit w/ Manual Reset

• Flow Switch

• 24 Volt Control System

• BMS Terminal Strip

• Combustion Air Filter
(CW 986-2066)

• 5 Year Limited Warranty on
Heat Exchanger
(See warranty for details)

Optional Equipment

Alarm Bell
Contacts on any Failure
Contacts for Air Louvers
Cupro-Nickel Heat Exchanger
High and Low Gas Pressure

Switch w/ Manual Reset
Low Water Cut-Off
Stack Frame

MP2 Sequencer

Available Firing Systems

F9 HSI (Standard)
F7 California Code

Copper-Fin® Gas Water Heater Dimensions & Specifications

Model Btu/hr GPH @ Vent Gas Shipping
Number Input 100°F Rise A B C D E F G H Size Conn. Weight

CWN0495PM 495,000 486 33-1/4” 45-1/4” 22-1/4” 18-1/2” 12-1/2” 9-1/2” 30-3/4” 22-3/4” 6” 1-1/4” 490
CWN0645PM 645,000 633 33-1/4” 56-3/4” 22-1/4” 18-1/2” 12-1/2” 9-1/2” 30-3/4” 22-1/4” 8” 1-1/4” 555
CWN0745PM 745,000 731 33-1/4” 64” 22-1/4” 18-1/2” 12-1/2” 9-1/2” 30-3/4” 31-1/4” 8” 1-1/4” 610
CWN0986PM 985,000 967 36” 48-1/4” 33-1/2” 20-1/2” 15-3/4” 9-1/2” 33-3/4” 9-1/2” 10” 2” 900
CWN1256PM 1,255,000 1,232 36” 58-1/2” 33-1/2” 20-1/2” 15-3/4” 10-1/2” 33-3/4” 10-1/2” 12” 2” 1,020
CWN1436PM 1,435,000 1,409 36” 68-3/4” 33-1/2” 20-1/2” 15-3/4” 10-1/2” 33-3/4” 10-1/2” 12” 2” 1,065
CWN1796PM 1,795,000 1,762 36” 82-1/4” 33-1/2” 20-1/2” 15-3/4” 11” 33-3/4” 11” 14” 2” 1,265
CWN2066PM 2,065,000 2,027 36” 92-1/2” 33-1/2” 20-1/2” 15-3/4” 11” 33-3/4” 11” 14” 2” 1,400

Change ‘N’ to ‘L’ for LP gas models.
Water connections for models (CW 0495-0745) are 2” NPT on 6-1/2” centers. Water connections for models (CW 0986-2066) are 2-1/2” NPT on 11-1/4” centers.

Performance data is based on manufacturer test results.

Venting Options

Outdoor Vent Cap and Pump Cover
Intelligent Venting Solutions

Approx.
Model No. Fans Controls Pump Total
Amps

495 3.6 3.6 5.8 13
645 3.6 3.6 5.8 13
745 3.6 3.6 5.8 13
986 3.4 4.6 7.4 15.4
1256 3.4 4.6 7.4 15.4
1436 3.8 4.6 7.4 15.8
1796 3.8 4.6 7.4 15.8
2066 3.8 4.6 7.4 15.8

Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: [phone]

www.Lochinvar.com

10/10—Printed in U.S.A.