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INSTALLATION & MAINTENANCE MANUAL
PVI ELECTRIC HOT WATER SUPPLY BOILER
Installation and service must be performed by a qualified service installer or service agency.
IMPORTANT: THIS MANUAL CONTAINS INFORMATION REQUIRED FOR INSTALLATION, OPERATION AND
MAINTENANCE OF THIS EQUIPMENT. READ AND FOLLOW THE INFORMATION IN THIS MANUAL AND ALL OTHER
PROVIDED INSTRUCTIONS, LABELS AND MARKINGS BEFORE INSTALLI NG, OPERATING OR SERVICING THIS UNIT.
TO THE INSTALLER: After installation, these instructions must be given to the equipment user or left near the appliance.
SPECIAL INSTRUCTIONS TO THE OWNER: Retain this manual for future reference. These instructions contain
important information that will help you in maintaining and operating this appliance.
PVI INDUSTRIES, LLC - Fort Worth, Texas 76111 - Web www.pvi.com - Phone 1-800-433-5654
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TABLE OF CONTENTS
1. Safety Considerations
2. Product Description
3. Standard Features and Equipment
3.1 Warranty
4. Boiler Installation
4.1 Checking Equipment Before You Install
4.2 Codes
4.3 Electrical Connections
4.4 Location
4.5 Installation
4.6 Service Clearances
4.7 Clearances to Combustible Surfaces
4.8 Electronic Low Water Cutoff
5. Optional Equipment
5.1 Shunt Trip Circuit Interrupter
5.2 Time Sequencer
5.3 Proportional Sequencer
6. Start-up Procedures and Operation
7. Element Continuity Checks
8. Maintenance
9. Troubleshooting Guide
Warranty forms ship separately with each product.
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1 SAFETY CONSIDERATIONS
WARNING: If the information in the supplied manual(s) is not followed exactly, a fire, explosion or exposure to
hazardous materials may result, causing property damage, personal injury or loss of life.
WARNING: Installation and service must be performed by a qualified installer or service agency, who must read and
follow the supplied instructions before installing, servicing or removing this appliance. Refer to the information
contained in this manual. Improper installation, adjustment, alteration, service or maintenance can cause property
damage, personal injury, exposure to hazardous materials or loss of life.
WARNING: Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the unit and to replace any part of the control system, all electric controls and all other items
affecting safe appliance operation and which has been under water.
WARNING: In an emergency shut the main electric supply to the appliance from a location safely away from the
emergency. Failure to follow these instructions can cause property damage, personal injury, and exposure to
hazardous materials or loss of life.
WARNING:
Outlet water is only for Process use. Do
not allow human contact and do not
connect to a piping system intended for
human contact, such as hand sinks, slop
sinks, showers, etc. Hot water from the
outlet can scald and may flash to steam
when released to atmosphere. Failure to
follow this warning can result in personal
injury or death.
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2 PRODUCT DESCRIPTION
FIGURE 1
1. Electrical Entry 6. Manual Fused Disconnect
2. Temperature Limiting Device 7. Water Level Control (LWCO/Pump Control)
3. Operating Control 8. Pressure Controls
4. Control Switch and Fuse 9. Inspection Fitting - Handhole
5. Heating Element 10. Electronic LWCO
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3 STANDARD FEATURES AND EQUIPMENT
3.1 Warranty
Factory warranty does not cover improper installation or operation. (See warranty for complete details.)
Warranty exclusions include but are not limited to failure or malfunctions resulting from:
1. Failures to properly apply, install, operate, or maintain the appliance in accordance to printed instructions.
2. Abuse, alteration, accident, fire, flood and the like.
3. Sediment or lime buildup, freezing or any other conditions causing inadequate circulation.
4. Corrosive or contaminated atmosphere.
4 HOT WATER SUPPLY BOILER INSTALLATION
4.1 Checking Equipment Before You Install
Inspect the unit completely upon receipt from the freight carrier before signing the bill of lading. Inspect the
appliance and all accompanying parts for signs of impact or mishandling. Verify the total number of pieces shown
on packing slips with those actually received. Contact the freight carrier immediately if any damage or shortage is
detected.
4.2 Codes
The equipment must be installed in accordance with those installation regulations in force in the local area where
the installation is to be made. These shall be carefully followed in all cases. Authorities having jurisdiction must be
consulted before installation is made. In the absence of such requirements, the installation shall conform to the
latest edition of the National Electrical Code, NFPA 70. 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, No. (CSD-1). All appliances conform to the latest edition of the ASME Boiler
and Pressure Vessel Code. Where required by the authority having jurisdiction, the installation must comply with the
Canadian Electric Code, CAN/CSA-C22.1 Part 1 and/or local codes.
4.3 Electrical Connections
Check rating plate on front for correct voltage, phase and amperage. Refer to wiring diagram for control
components mounted on boiler.
Use proper wire size and branch circuit protection as required by National Electrical Code and state and local
codes. The PVI electric hot water supply boiler data decal shows the volts, amps and phase of power to be
connected.
Use correct size ground wire, attach to bottom ground terminal connection on the terminal block assembly marked
with decal "GR".
Connect supply feeders to distribution block (or circuit interrupter if furnished) inside electrical en-closure on the
boiler.
IMPORTANT: Check all wiring connections in boiler and element enclosure to assure tightness prior to energizing.
NOTE: Use only copper wire of proper sizing for incoming service. Damage resulting from use of aluminum wiring is
excluded from coverage under the warranty of this unit.
4.4 Location
1. Locate the unit in a clean and dry area as close as possible to the greatest hot water usage and as near to
water and electrical power as practical.
2. Install the unit on a firm, level foundation.
3. Locate the foundation on a pitched floor near a suitable drain, or make other provisions to prevent contact to
areas of the building subject to water damage should the boiler or a water connection leak. The drain must be
sufficient to contain water in excess of 210°F.
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