HTP UFT-140W User Manual

272 Duchaine Blvd. New Bedford, MA 02745 www.htproducts.com
LP-542 REV. 6.2.16
Universal Fire Tube Boiler
Wall Mount
INSTALLATION
START-UP
MAINTENANCE
PARTS
WARRANTY
Models
UFT-80W / 100W / 120W / 140W / 175W / 199W
Heat Exchanger Bears the ASME “H” Stamp
NOTICE: HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors
in literature.
NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.
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.
WHAT TO DO IF YOU SMELL GAS
 Do not try to light any appliance.
 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.

HTP UFT-140W Specifications

General

Model	UFT-140W
Heating Capacity	140, 000 BTU/hr
Heating Capacity (kW)	41 kW
Efficiency	95% AFUE
Efficiency (%)	95
Fuel Type	Natural Gas or Propane
Boiler Type	Condensing
Heat Exchanger Material	Stainless Steel
Operating Pressure	30 psi
Dimensions (mm)	440
Type	Wall-mounted condensing boiler

Summary

Safety and Operating Information

Read Before Operating

Essential safety precautions and warnings for operating the boiler safely and correctly.

Operating Instructions

Step-by-step guide for safely starting, operating, and turning off the boiler unit.

FOR THE INSTALLER

PART 2 – SAFETY REGULATIONS

OPERATION AND INSTALLATION WARNINGS

Critical warnings for safe installation and operation, covering hazards like gas leaks and CO.

IMPROPER COMBUSTION

WHEN SERVICING THE BOILER

Safety precautions to follow when performing maintenance or service on the boiler.

BOILER WATER CHEMISTRY

PART 4 – PREPARE BOILER LOCATION

BEFORE LOCATING THE BOILER

CLEARANCES FOR SERVICE ACCESS

EXHAUST VENT AND INTAKE PIPE

PREVENT COMBUSTION AIR CONTAMINATION

Critical warnings about contaminants in combustion air and their effects.

REMOVING A BOILER FROM A COMMON VENT SYSTEM

WALL-MOUNTING THE BOILER

Instructions and warnings for securely mounting the boiler to a wall.

PART 5 – VENTING

INTAKE PIPE AND EXHAUST VENT GUIDELINES

Rules for installing vent systems in compliance with codes and manufacturer specs.

APPROVED VENT MATERIALS

VENT TERMINATION

Details on proper termination of vent pipes for various configurations.

PART 6 – INSTALL THE CONDENSATE DRAIN

PART 7 – GAS PIPING

GAS PIPE SIZING TABLES

GAS CONNECTION REQUIREMENTS

Details on gas connection fittings, supply line sizing, and shut-off valves.

PART 8 – WATER PIPING

CH PRESSURE RELIEF VALVE

Installation and safety guidelines for the central heating pressure relief valve.

BUILT-IN LOW WATER CUT-OFF (LWCO)

PART 9 – CONNECT ELECTRICAL POWER / INITIAL STARTUP

WIRING INFORMATION

Guidance on proper grounding, electrical connections, and wiring diagrams.

WIRING A CASCADE SYSTEM

Instructions for wiring multiple boilers together in a cascade system.

PART 10 – OPERATING SYSTEM INSTRUCTIONS

CHANGING THE CH SET-POINT

INSTALLER MODE

Accessing and navigating installer settings for boiler configuration.

ERROR MODE

Information on accessing and interpreting boiler error codes and history.

SETTING UP A CASCADE SYSTEM

Procedure for programming boilers for cascade operation.

ERROR TREE ANALYSIS

Flowcharts for diagnosing common boiler errors like flame or gas detection.

APS/BURNER OVERHEAT LIMIT / CONDENSATE BLOCK SWITCH

PART 11 – START-UP PREPARATION

BOILER WATER CHEMISTRY

Critical water chemistry checks and requirements before boiler installation.

CHECK FOR GAS LEAKS

Procedure for checking gas supply lines for leaks before boiler startup.

FILL AND TEST WATER SYSTEM

Steps for filling the system with water, pressurizing, and checking for leaks.

PURGE AIR FROM SYSTEM

Detailed procedure for removing air from the heating system and boiler.

FINAL CHECKS BEFORE STARTING BOILER

ADJUSTING GAS PRESSURE AT THE BOILER

Procedure for checking and adjusting gas inlet pressure.

SETTING AND VERIFYING THE COMBUSTION SETTING

Steps for setting and verifying combustion parameters using a analyzer.

PART 13 – TROUBLESHOOTING

Check Exhaust Vent and Intake Piping

Check Primary and Gas Piping

Performing gas leak inspections and checking primary/system piping.

Limited Warranty for UFT Boilers

COVERAGE

Details the warranty period and coverage for boiler components and repairs.

OWNER RESPONSIBILITIES

WARRANTY EXCLUSIONS

Lists conditions and actions that will void the boiler's limited warranty.

MAINTENANCE REPORT

INSPECTION ACTIVITIES

ADDITIONAL INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS

5.08: Modifications to NFPA-54, Chapter 10