Lochinvar CW 645, CW 745 System Pump Relief Valve TEE Elbow Union Expansion Tank, Thermometer

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WAT E R H E AT E R P I P I N G D I A G R A M S

A P P E N D I X A

PIPING DIAGRAM

SINGLE HEATER - SINGLE TANK

 

 

 

 

 

 

 

BUILDING HOT

WATER SUPPLY

COLD WATER SUPPLY

LOCHINVAR

WATER HEATER

RELIEF

VALVE

INLET

OUTLET

LOCK-TEMP

STORAGE

TANK

DRAIN

BUILDING RETURN

This illustration is for concept only and should not be used for any actual installation without engineering

LIT0133

or technical advice from a licensed engineer. All necessary equipment may not be illustrated.

L E G E N D

FULL PORT BALL VALVE

SYSTEM

PUMP

SYSTEM

RELIEF VALVE

TEE

ELBOW

UNION

EXPANSION

TANK

CHECK VALVE

THERMOMETER

L o c h i n v a r D E S I G N E R S G U I D E C O P P E R - F I N W A T E R H E A T E R 6 1 5 - 8 8 9 - 8 9 0 0

A 1

 

 

 

 

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Contents DESIGNER’S Guide COPPER-FINWATER Heater Page Table of Contents Location of Unit CodesTable a Clearances from Combustible Construction Special Location Outdoor USEHOT Water Outlet Flue Products Vent Right SideLeft Side GAS AIR Connection Inlet HOT Water Outlet FrontCombustion & Ventilation AIR Contaminants VentingGeneral Exhaust FansVent Terminations Barometric Dampers Venting OptionsConventional Venting Masonry Chimney Outdoor InstallationGAS Supply Freeze Protection Outdoor InstallationHigh Altitude Applications Water ConnectionsInlet and Outlet Water Connections Example of High Altitude ApplicationsWater Velocity Control LOW Water Temperature DeliveryPump Operation Ball valvesWater Treatment Water Flow SwitchRelief Valve Electrical RequirementsThermometer System Pump Relief Valve TEE Elbow Union Expansion TankBuilding HOT Water Supply Relief Valve Single Heater TWO TankTWO Temperature Installation Single HEATER-SINGLE Tank Reducing TEE Cold Water Supply Drain OutletTWO HEATERS-TWO Tanks MULTI-STACK Frame W/ Water Heaters and Storage Tank LIT0396Page Lochinvar Corporation Lebanon, TN 615-889-8900 / Fax

CW 645, CW 745 specifications

The Lochinvar CW 645 and CW 745 are advanced water heater models from Lochinvar, a leading manufacturer of water heating solutions. These high-efficiency units are designed to meet the demands of both commercial and residential applications, combining cutting-edge technology with robust performance.

One of the defining features of the CW series is its commitment to energy efficiency. With their stainless steel construction, these water heaters boast a high thermal efficiency rating. The CW 645 and CW 745 utilize modulating technology, allowing them to adjust the heating output based on real-time demand. This results in reduced energy consumption and lower operational costs, making them an ideal choice for environmentally conscious consumers.

These models are equipped with a powerful burner system designed to provide optimal heating performance. The burners are engineered for reliability and longevity, ensuring consistent hot water supply even under heavy usage. Additionally, the CW 645 and CW 745 feature a compact footprint, making them suitable for installation in tight spaces or areas with limited access.

The advanced control system in these units takes user experience to the next level. With intuitive controls and a digital display, users can easily set temperatures and monitor system performance. The integrated diagnostics feature ensures quick troubleshooting, enhancing reliability and reducing maintenance time.

Safety is another paramount consideration in the design of the CW series. Both models come equipped with multiple safety features, including a flame safeguard system and a high-temperature limit switch. These safety mechanisms provide peace of mind while ensuring compliance with local building codes.

Furthermore, the CW 645 and CW 745 models are versatile in their applicability. They can be used for a variety of applications including restaurants, schools, and hospitals. Their ability to provide consistent hot water makes them particularly valuable in high-demand situations.

In summary, the Lochinvar CW 645 and CW 745 are exceptional water heating solutions that epitomize efficiency, safety, and performance. With advanced features, user-friendly controls, and solid construction, these units are well-suited to meet the hot water needs of both commercial and residential users. Investing in a CW series water heater not only secures a reliable source of hot water but also contributes to long-term energy savings and environmental sustainability.