Lochinvar

In designing

a water heater system, pay special attention to:

oWater Velocity

(See page 12 for Required Degree

Rise chart.)

oFactory Supplied Pump

Capacity

(See page 12 for Pump Operation.)

oManifold Pipe Size

When using more than one heater

(See page 14 for Common Water Manifold Size for Multiple Water Heater Installation Table.)

oStorage Tank Circulating

Tappings

(See page 14 for Manifold Pipe Size.)

oPlacement of Cold Water

Inlet and Building Return

(See Appendix A for Water Heater Piping Diagrams.)

oWater Hardness

(See page 13 for Water Treatment

Information.)

CODES

The equipment shall be installed in accordance with those installation regulations in effect in the local area where the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction shall be consulted before installations are made.

In the absence of such requirements, the installation shall conform to the latest edition of the National Fuel Gas Code, ANSI Z223.1. Where required by the authority having jurisdiction, the installation must conform to American Society of Mechanical Engineers Safety Code for Controls and Safety Devices for Automatically Fired Boilers, ASME CSD-1. Where required by the authority having jurisdiction, the installation must comply with the Canadian Association Code, CAN/CGA- B149.1 and/or B149.2 and/or local codes.

LOCATION OF UNIT

1.Locate the unit so that if water connections should leak, water damage will not occur. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the unit. The pan must not restrict combustion air flow.

Under no circumstances is the manufacturer to be held responsible for water damage in connection with this unit or any of its components.

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Lochinvar CW 745, CW 645 manual Codes, Location of Unit
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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.
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