Lochinvar CWL0647PM User Manual
COPPER-FIN
®
WATER HEATER
Submittal Sheet
CW-Sub-13
COPPER-FIN® GAS WATER HEATERS (MODELS CW 0497-2067)
JOB NAME ______________________________________________________________________
LOCATION ______________________________________________________________________
ENGINEER_______________________________________________________________________
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
• 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
M9 HSI (Standard)
M7 California Code
Registered under U.S. Patent 5,989,020
HLW
Copper-Fin® Gas Water Heater Dimensions & Specifications
Input GPH @ Inlet Outlet
Model Max. 100°F Gas Water Water Vent Shipping
Number Btu/hr Rise A B C D E F G Conn. Conn. Conn. Size Weight
CWN0497PM 495 486 31-1/2” 45-1/4” 22-1/4” 12-1/2” 9-1/2” 22-3/4” 29-1/2” 1-1/4” 2” 2” 6” 490
CWN0647PM 645 633 31-1/2” 56-3/4” 22-1/4” 12-1/2” 9-1/2” 28-1/2” 29-1/2” 1-1/4” 2” 2” 8” 555
CWN0747PM 745 731 31-1/2” 64” 22-1/4” 12-1/2” 9-1/2” 32” 29-1/2” 1-1/4” 2” 2” 8” 610
CWN0987PM 985 967 36” 48-1/4” 33-1/2” 15-3/4” 8-1/2” 8-1/2” 33-1/4” 2” 2-1/2” 2-1/2” 10” 900
CWN1257PM 1,255 1,232 36” 58-1/2” 33-1/2” 15-3/4” 9-1/2” 10-1/2” 33-1/4” 2” 2-1/2” 2-1/2” 12” 1,020
CWN1437PM 1,435 1,409 36” 68-3/4” 33-1/2” 15-3/4” 10-1/2” 10-1/2” 33-1/4” 2” 2-1/2” 2-1/2” 12” 1,065
CWN1797PM 1,795 1,762 36” 82-1/4” 33-1/2” 15-3/4” 11” 11” 33-1/4” 2” 2-1/2” 2-1/2” 14” 1,265
CWN2067PM 2,065 2,027 36” 92-1/2” 33-1/2” 15-3/4” 11” 11” 33-1/4” 2” 2-1/2” 2-1/2” 14” 1,400
Change ‘N’ to ‘L’ for LP gas models.
Water connections for models (CW 0497-0747) are 2” NPT on 6-1/2” centers. Water connections for models (CW 0987-2067) 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
Lochinvar, LLC
300 Maddox Simpson Parkway
Lebanon, Tennessee 37090
P: 615.889.8900 / F: 615.547.1000
Lochinvar.com
Approx.
Model No. Fans Controls Pump Total
Amps
497 3.6 3.6 5.8 13
647 3.6 3.6 5.8 13
747 3.6 3.6 5.8 13
987 3.4 4.6 7.4 15.4
1257 3.4 4.6 7.4 15.4
1437 3.8 4.6 7.4 15.8
1797 3.8 4.6 7.4 15.8
2067 3.8 4.6 7.4 15.8
5/15—Printed in U.S.A.
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