HTP UFT-80W 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-80W Specifications

General

Brand	HTP
Model	UFT-80W
Category	Boiler
Language	English

Summary

Installation

Start-Up

Maintenance

Operating Instructions

What To Do If You Smell Gas

Immediate steps to take if a gas leak is detected to ensure safety.

To Turn Off Gas To Appliance

For the Installer

Flammable Vapors Warning

Warning about the explosion hazard of flammable vapors near the boiler.

Installation Compliance Requirements

Lists codes and standards that must be followed for boiler installation.

Safety Regulations

Technical Specifications

Prepare Boiler Location

Connect Electrical Power / Initial Startup

Wiring Information

Guidelines for proper electrical grounding and wiring connections to the boiler.

Part 2 - Safety Regulations

Operation and Installation Warnings

Read and understand all precautions to avoid serious injury or death.

Improper Combustion

Gas

When Servicing The Boiler

How the Boiler Operates

Stainless Steel Heat Exchanger

10 to 1 Modulating Combustion System

Control System Features

Integrated Control System

Combustion System

System Safeties

Lists integrated safety features for reliable and safe operation.

Cascade Operation

Clearances For Service Access

Minimum Installation and Service Clearances

Specifies required clearances around the boiler for installation, operation, and maintenance.

Residential Garage and Closet Installations

Precautions for Garage/Closet Installations

Wall-Mounting The Boiler

Positioning the Boiler on the Wall

Step-by-step instructions for attaching the wall bracket and hanging the boiler.

Venting

Intake Pipe and Exhaust Vent Guidelines

Covers vent system installation in accordance with codes, materials, and termination requirements.

Approved Vent Materials

Allowed Combined Vent Lengths

Tightening Boiler Collar to Exhaust Vent and Intake Pipe

Vent Termination

Direct Vent, Two Pipe Roof and Sidewall Vent Terminations

Illustrates and explains direct vent termination methods for sidewall and roof installations.

Direct Vent, Optional Horizontal and Vertical Vent Kits

Sidewall Venting with Kit

Shows sidewall venting configurations using specific kits.

Roof Venting with Concentric Vent Kit

Illustrates roof venting with a concentric vent kit, including important notes.

Sidewall Venting with Concentric Vent Kit

Shows sidewall venting using a concentric vent kit with key installation details.

Snorkel Venting

Horizontal Venting

Diagram illustrating horizontal snorkel venting system configuration and notes.

Power Vent, Indoor Combustion Air Installation in Confined or Unconfined Space

Install The Condensate Drain

Condensate Properties and Drainage

Boiler produces acidic condensate; must be drained and disposed according to local regulations.

Condensate Neutralizer and Piping

Condensate Line Blockage

Part 7 - Water Piping

Additional Precaution For Excess Flow Valve (EFV)

Gas Pipe Sizing Tables

Gas Pipe Sizing

Reference information for gas pipe sizing based on manufacturer specifications.

Natural Gas Pipe Sizing

Tables listing maximum natural gas delivery capacity for corrugated stainless steel and black iron pipe.

LP (Liquid Propane) Gas Pipe Sizing

Tables listing maximum liquid propane delivery capacity for corrugated stainless steel and black iron pipe.

Part 8 – Water Piping

General Plumbing Connection Guidelines

General guidelines for pipe material, cleaning, torch use, isolation valves, and insulation.

Central Heating Piping System Water Piping Methods

EXPANSION TANK AND MAKE-UP WATER

Ensure expansion tank is correctly sized and located according to recognized design methods.

Zoning with Zone Valves and Indirect Water Heating - Direct Piping

Zoning with Pumps and Indirect Fired Water Heater - Direct Piping

Zoning with Zone Valves and Indirect Water Heating - Primary / Secondary Shown

Zoning with Pumps and Indirect Fired Water Heater - Primary/Secondary Shown

NOTES

System piping concept explanation for primary/secondary zoning with pumps.

Cascaded System - Zoning with Pumps and Indirect Fired Water Heater - Primary/Secondary Shown

Cascaded System - Zoning with Zone Valves and Indirect Water Heating - Primary / Secondary Shown

NOTES

Piping concept for cascaded systems, primary/secondary zoning, and zone valve connections.

CH Pressure Relief Valve

Wiring a Cascade System

Control Panel

Boiler Control Panel Detail

LCD Display Descriptions

LCD Display Detail

Start-Up Sequence

Changing the CH Set-Point

CH Set-Point Screen

Changing the Time

Status Display Mode

Installer Mode

Error Mode

Error Code Descriptions

Error Code Descriptions

Er:10 Flame has Extinguished

Er:20 Condensate - Closed is Normal, Open is Fault

Er:41 Fan Speed too High with Flame On

Er:85 Freeze Protection

Er:11 Ignition has Failed

Er:28 Overheat Sensor Open or Short

Er:42 Low Water Cutoff (LWC) Circuit is Open

Er:94 Exhaust Sensor

Er:16 Operating Temperature Sensor detects Water Temperature Greater than 203°F

Er:29 APS Open

Er:43 Burner Overheat Switch Open

Er:30 System Sensor Short

Er:61 Fan Speed Feedback Signal Abnormal

Er:31 Return Temperature Sensor Open or Short

Er:70 Register, Ram, Rom, I/O Port, AD Abnormal

Er:32 DHW Sensor Short

Er:72 Flame Signal Detected before Ignition

Er:33 CH Temperature Sensor Open or Short

Er:78 Poor Communication

Er:35 Exhaust Sensor Open or Short

Er:80 Cascade Communication Error

Critical error for cascade communication issues between boilers.

Er:37 Abnormal Supply Frequency

Er:81 Low Water Level Sensor

Er:38 Error Appears When Control Stores Data, but Data is not Saved

Er:40 Gas Leakage is Detected

Critical error for gas leakage detection, requiring immediate action and technician intervention.

Diagnostics and Suggested Corrective Actions

Display Not Appearing

Display Repeatedly Goes Through Initialization

Setting Up a Cascade System

Program the Master and Follower Boilers

Program the Master Boiler

Description

Final programming steps for the master boiler in a cascade system.

Outdoor Temperature Mode (Optional)

0-10 Volt Input

Step Modulation

Description

Error Tree Analysis

FLAME DETECTION

APS / Burner Overheat Limit / Condensate Block Switch

GAS DETECTION

DHW / OP / CH Overheat / Exhaust Overheat Sensors

Start-Up Preparation

Clean system to remove sediment

Check For Gas Leaks

WARNING

Description

Propane boilers only - verify correct odorant level in the gas supply.

Fill And Test Water System

WARNING

Ensure boiler is full of water before firing burner to prevent damage.

Purge Air From System

CAUTION

Ensure air vent on top of boiler remains fully open for proper fill and operation.

Check Thermostat Circuit(s)

Description

Final Checks Before Starting Boiler

Description

Final verification steps before the initial boiler startup.

Adjusting Gas Pressure At The Boiler

ADJUSTING GAS PRESSURE AT THE BOILER

Steps for adjusting gas pressure at the boiler using a manometer.

Setting and Verifying the Combustion Setting

WARNING

Visually looking at the burner does not determine quality; use analyzer for CO measurements.

Part 12 – Installation and Start-Up Checklist

LIGHT OFF ACTIVITIES

Checklist items to be completed before the boiler is energized and tested.

FINAL INSTALLATION APPROVALS

Section for technician sign-off confirming final installation approval.

Part 13 – Troubleshooting

TROUBLESHOOTING CHART

A table listing common problems, possible causes, and suggested remedies.

Part 14 – Annual Maintenance Procedures

DANGER

Boiler must be inspected and serviced annually by a qualified technician to ensure safety.

Check the Surrounding Area

Inspect the area around the boiler for combustible materials and air contaminants.