Hot Water Generator Installation and Operation Manual
2Installation (continued)
Examining the unit
After the unit has been set in place and uncrated, it should be carefully examined to assure that neither the main unit nor components have been damaged during shipping. If any evidence of damage is detected that could affect the safe operation of the unit, contact Lochinvar Corporation, or your authorized sales representative, to report the damage and to receive instructions on how to proceed.
After the unit and all components have been inspected for damage, it is suggested that all pressure and temperature control components be checked to assure that they meet or exceed design specifications. If any discrepancy is found, contact Lochinvar Corporation, or your authorized representative, before proceeding with the installation.
Mounting the unit
The unit should be mounted to the floor, following applicable architectural / local code requirements, or accepted standards for the specific installation site. The unit should be installed in a location with sufficient
Connecting the cold water source and the hot water outlet
NOTICE | Before making any connections of water | ||||
inlet or outlet to the unit, assure that all | |||||
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| piping is clean and free of foreign material | ||||
| or scale. This can usually be accomplished | ||||
| by “blowing out” the pipe. Any foreign | ||||
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| performance. |
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Cold water source
The first step in the installation process is to connect the cold water source to the water inlet port. The exact location of this port for the specific unit, as well as inlet pipe diameter and thread size, can be determined from the CAD drawing supplied with the unit.
A manual shutoff valve should be installed upstream on the cold water source as an isolation device. The shutoff valve should be in the closed position and remain so until the installation is complete.
clearance to remove the tube bundle for repair or replacement.
Unit and components
NOTICE
For all piping connections, the use and / or type of joint compound or sealer on the joint should be determined by referring to local codes, accepted practices, or the requirements of the installing contractor.
Lochinvar Hot Water Generators are designed to make installation a relatively simple procedure. Because the unit is “Packaged”, after placing and mounting the unit, installation involves the following:
•Connecting the cold water source to the water inlet.
•Connecting the hot water outlet to the hot water feed line.
•Installing the control valve bulb into the tank bulbwell.
•Connecting the condensate / water return line and piping it to the recycling system.
•Piping the pressure relief valve to an acceptable drain.
•Connecting the energy source (steam or boiler water) to the unit.
•Wiring the applicable source of electricity (if the unit is packaged with a circulating pump or electrically activated pressure or temperature controls).
Each unit is supplied with CAD drawings that indicate the location and specifications for each connection that must be made. In addition, the drawing will enable the installer(s) to determine the flow direction of both the water and energy source.
If the cold water source is equipped with an
Hot water outlet
The next step in the installation process is to connect the hot water system piping to the hot water outlet port. The exact location of this port for the specific unit, as well as outlet pipe diameter and thread size, can be determined from the CAD drawing(s) supplied with the unit.
A manual shutoff valve should be installed downstream on the hot water outlet line as an isolation device in case the unit must be disconnected from the system. The shutoff valve should be in the closed position and remain so until the installation is complete.
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