HTP ELU Series User's Information Manual
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HTP ELU Series User's Information Manual

High efficiency condensing wall-hung gas boiler
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User's Information Manual
IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING
PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE. DO NOT STORE GASOLINE OR OTHER FLAMMABLE VAPORS
AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER BOILER.
•
Do not try to light any boiler.
•
Do not touch any electrical switch.
•
Do not use any phone in your building.
•
Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.
•
If you cannot reach your gas supplier, call the fire department. Installation and service must be provided by a qualified
installer, service agency, or the gas supplier.
Improper installation, adjustment, alteration, service, or maintenance could void product warranty and cause property
damage, severe personal injury, or death.
California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer, birth
defects, or other reproductive harm.
The manufacturer reserves the right to make product changes or updates without notice and will not be held liable for
typographical errors in literature.
The surfaces of these products contacted by potable (consumable) water contain less than 0.25% lead by weight as required
by the Safe Drinking Water Act, Section 1417.
NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.
272 Duchaine Blvd.
ELU and EFTU
High Efficiency Condensing
Wall-Hung Gas Boilers
WARNING
!
WHAT TO DO IF YOU SMELL GAS
NOTICE
New Bedford, MA 02745
Heat Exchanger Bears the ASME "H" Stamp
420010970100 - LP-699 Rev. 000 Rel. 001 Date 6.11.20
www.htproducts.com

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Summary of Contents for HTP ELU Series

  • Page 1 ELU and EFTU High Efficiency Condensing Wall-Hung Gas Boilers User’s Information Manual Heat Exchanger Bears the ASME “H” Stamp WARNING IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE. DO NOT STORE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER BOILER.
  • Page 2 WARNING The combustion chamber insulation in this product contains ceramic fiber material. Ceramic fibers can be converted to cristobalite in very high temperature applications. The International Agency for Research on Cancer (IARC) has concluded, “Crystalline silica inhaled in the form of quartz or cristobalite from occupational sources is carcinogenic to humans (Group 1).

  • Page 3: Special Attention Boxes

    Table of Contents Part 1 - Product and Safety Information A. Before Operating the Boiler B. Primary Water C. Freeze Protection SPECIAL ATTENTION BOXES D. Combustion Air Contamination Prevention E. General Cautionary Statements The following defined terms are used throughout this manual to 1.

  • Page 4: Combustion Air Contamination Prevention

    When operating the boiler for the first time, ensure the connected WARNING gas type matches the boiler gas type. HTP boilers are factory set to operate on Natural Gas. BEFORE OPERATING WITH PROPANE Closed loops that use glycol as heat transfer fluid must be serviced the boiler must be converted to Propane operation by a qualified periodically.
  • Page 5 Areas Likely Have Products to Avoid Contaminants Spray cans containing Dry cleaning / laundry areas fluorocarbons and establishments Permanent wave solutions Swimming pools Figure 3 - Lockout Error Example Chlorinated waxes / cleaners Metal fabrication plants If the error condition occurs often contact a qualified service technician. Chlorine-based swimming pool Beauty shops chemicals...

  • Page 6: Part 4 - Maintenance Procedures

    Part 3 - Maintenance Schedule Part 4 - Maintenance Procedures DANGER A. Owner Maintenance Periodically The boiler must be inspected and serviced annually, preferably at • Check area around the boiler. the start of the heating season, by a qualified service technician. In addition, the maintenance and care of the boiler as outlined in this •...
  • Page 7 expansion tank. • Visually inspect for leaks around the internal boiler water connections and around the heat exchanger. Visually inspect the • Contact a qualified service technician if pressures are low or external system piping, circulators, and system components and high, or if there is an issue with boiler operation.

  • Page 8: Part 5 - Troubleshooting For The User

    Part 5 - Troubleshooting for the User Review and perform the following initial diagnostic steps before calling a qualified service technician. Problem Possible Solution Make sure the the boiler is turned ON If the control panel display is blank, ensure the power cord is intact and plugged in. Check the circuit breaker or fuse box.

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Eftu series

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