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Creating the Successful System
Creating the successful commercial water heating system is a joint venture involving many persons and skills.
In order to select the right system using either tank type or copper type heaters, one should understand the role that each of the persons concerned with the installation plays.
The following chart summarizes the responsibilities for each of the roles.
Remember, your customer’s success or profit may depend upon the continued availability of hot water . . . and you will achieve that goal through proper system selection and sizing.
IDENTITY | RESPONSIBILITY |
|
|
Customer | Must define his needs |
|
|
System designer* | Designs a water heating system to satisfy |
| the customer’s needs. Acts as an interface |
| between all involved parties. |
|
|
Water Heater Supplier | Furnishes the equipment to meet the system |
and/or | specifications. May aid the designer in |
Manufacturer | equipment selection or specifications with |
| his knowledge of product performance |
| and availability. |
|
|
Plumbing and Electrical | Must understand system concept to provide |
Installation Contractors | installation, startup and customer instruction. |
| Also provide maintenance and service for |
| continued satisfaction. |
|
|
Energy Supplier | Advises characteristics of energy available |
| at job site and how to achieve best use. |
| Particularly important when electricity is |
| the fuel. |
|
|
Water Supplier | Advises characteristics of water, lowest |
| temperature, maximum pressure and |
| hardness. May influence heater selection and |
| use of a pressure reducing valve. |
|
|
*The system designer may be the architect, engineer, installing contractor or water heater supplier.
Sizing Without Prepared Information
The following procedures will establish heater recovery and storage tank capacities for intermittent use systems.
Continuous use systems are sized so that heater recovery equals or exceeds demand. Therefore the size of the tank (when proposing a tank type heater system) is unimportant.
The procedures for one and two temperature systems are essentially the same:
1.Establish the hourly 1 / hot water demand in gallons and the maximum temperature rise.
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