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Giant UG40 - User Manual

Giant UG40
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RESIDENTIAL GAS WATER HEATERS
Canadian Installation and Operating Manual
04/2023
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
POWER DIRECT VENT GAS MODELS
WITH HOT SURFACE IGNITION
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
For Your Safety
AN ODOURANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
Read and understand instruction
manual and safety messages
before installing, operating or
servicing this water heater.
Failure to follow instructions and
safety messages could result in
death or serious injury.
Instruction manual must remain
with water heater.
WARNING
ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS
PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE CONTACT THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER.
100363229_2000619026_01
- Do not store or use gasoline or other flam-
mable vapours and liquids in the vicinity of
this or any other appliance.
- 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 sup-
plier's instructions.
If you cannot reach your gas supplier, call
the fire department.
- Installation and service must be performed by
a qualified installer, service agency or the
gas supplier.
WARNING: If the information in these instruc-
tions is not followed exactly, a fire or explosion
may result causing property damage, personal
injury or death.
VACATION
WARM
COOLER HOTTER
VERY
HOT
A
B
C

Table of Contents

Other manuals for Giant UG40

Questions and Answers

Summary

Safe Installation, Use, and Service

Important Definitions

Defines key terms like Qualified Installer, Service Agency, and Gas Supplier for clarity.

General Safety Warnings

Fire and Explosion Hazard Warnings

Alerts users to risks of fire and explosion from improper use or storage of flammable materials.

Burn Hazard Warnings

Highlights the danger of scalding from hot water, especially for vulnerable individuals.

Carbon Monoxide and Flammable Vapors Warnings

Warns about CO poisoning risk and hazards from flammable vapors near the unit.

Introduction and Installation Preparation

Preparing for Installation Steps

Outlines essential preparatory steps before installing the water heater, including reading the manual.

Typical Installation Overview

Water Heater Component Identification

Lists and visually identifies all major parts and components of the water heater with corresponding numbers.

Water Piping and Heater Operation

Mixing Valve Usage and Scald Prevention

Provides guidance on using mixing valves to prevent scald hazards from hot water.

Water Heater Operational Sequence

Details the step-by-step process of the water heater's operation when a call for heat is initiated.

Electrical Requirements and Wiring

Electrical Safety and Connections

Covers essential electrical safety precautions, wiring requirements, and connection diagrams.

Safety Lockouts and Location

Safety Lockout Mechanisms

Explains the functions of high limit controls and pressure switches that shut down the heater.

Water Heater Location Considerations

Guides users on selecting an appropriate and safe location for the water heater installation.

Installation Clearances and Ambient Conditions

Air Requirements and Venting Notes

New Water Heater Installation

Water Piping and Hot Water Safety

Covers water piping installation and the significant risks associated with hot water scalding.

Space Heating System Integration

Explains requirements for integrating the water heater with space heating systems.

Combo Heating System Installation

Combo Heating System Requirements

Lists the essential components, standards, and conditions for Combo Heating system installations.

Combo Heating Installation Procedures

Details the necessary steps and considerations for installing a Combo Heating system.

Water Systems: Closed and Thermal Expansion

Understanding Closed Water Systems

Explains how water systems can become closed and the implications for pressure.

Thermal Expansion Hazards and Mitigation

Describes risks from thermal expansion in closed systems and how to mitigate them with expansion tanks.

Temperature-Pressure Relief Valve

T&P Valve Explosion Hazard and Requirements

Highlights explosion risks if the T&P valve is not properly installed or maintained.

T&P Valve Discharge Pipe Safety

Specifies crucial safety requirements for the T&P valve discharge piping installation.

High Altitude and Gas Piping Installation

T&P Relief Valve Insulation

Instructions for insulating the temperature-pressure relief valve to minimize heat loss.

High Altitude Installation Warnings

Addresses safety considerations and required modifications for operating the heater at high altitudes.

Gas Piping Safety and Hazards

Covers essential safety precautions and potential hazards related to gas piping installation.

Gas Supply, Piping, and Sediment Traps

Filling the Water Heater

Water Heater Filling Procedure and Cautions

Provides steps for filling the tank and essential safety precautions to avoid damage.

Vent Termination Clearances (Side Wall)

Side Wall Vent Terminal Clearance Table

Presents a table with minimum clearance requirements for side wall vent terminations.

Venting System Installation

Carbon Monoxide and Venting Hazards

Warns about the risks of carbon monoxide poisoning and venting system failures.

Side Wall Vent Terminal Installation

Provides specific instructions and diagrams for installing vent terminals on exterior walls.

Side Wall Venting for Cold Climates

Vent Termination Types

Tee and Roof Vent Terminal Installation

Details the installation requirements for tee fittings and roof vent terminals.

Concentric Vent Termination Installation

Vent Pipe Installation and Materials

Multiple Concentric Vent Spacing

Defines spacing requirements when installing multiple concentric vent terminations.

Approved Vent Pipe Materials

Lists the approved materials for exhaust and air intake vent pipes, including PVC, CPVC, and polypropylene.

Vent Pipe Sizing and Length Guidelines

Vent Screens Installation

Vent Screen Selection and Fitting

Guides users on choosing the correct vent screen based on vent length and proper installation methods.

General Vent Pipe Installation Rules

Vent Pipe Run Configuration

Specifies rules for routing vent pipes to prevent condensation buildup and ensure proper airflow.

Blower Assembly and Vent Connections

Blower Assembly Installation Steps

Details the procedures for safely installing and securing the blower assembly to the water heater.

Connecting Vent Pipes to Blower

Explains how to properly connect the vent piping to the blower assembly using couplings and clamps.

Condensate Management and Sound Suppression

Condensate Formation and Drainage

Describes how condensate forms in the vent system and provides instructions for its proper drainage.

Optional Sound Suppressor Use

Explains the function and installation of an optional sound suppressor to reduce noise.

Installation Checklist

Lighting Instructions

Pre-Lighting Safety Checks

Crucial safety steps and warnings to review before attempting to light the water heater.

Water Heater Lighting Procedure

Step-by-step instructions for safely lighting the water heater's burner using the ignition system.

Operating the Temperature Control System

Setting Water Temperature for Safety

Recommends setting lower temperatures to reduce scald hazards and improve energy efficiency.

Hot Water Scald Hazard Awareness

Reinforces the dangers of hot water and the importance of proper temperature settings.

Gas Control Valve;Thermostat Operation

Important Information for Operation

Startup Conditions and Condensation

Details normal condensation that may occur during initial startup and how to identify it.

Operational Conditions: Smelly Water

Addresses the common issue of smelly water and provides solutions, including anode rod maintenance.

Hydrogen Gas Hazard Warning

Alerts users to the potential risk of hydrogen gas buildup in unused systems.

Periodic Maintenance Schedule

General Upkeep and Cleaning

Provides guidance on routine checks, cleaning of the unit, and vent piping.

Venting System and Burner Inspection

Outlines annual inspection procedures for the vent system and burner for safety and performance.

Combustion Chamber and Burner Cleaning

Housekeeping and T&P Valve Test

Covers maintaining a safe area around the heater and testing the temperature-pressure relief valve.

Draining and Flushing the Water Heater

Draining the Water Heater Storage Tank

Step-by-step instructions for draining sediment and water from the tank.

Flushing the Water Heater Storage Tank

Instructions for flushing the tank to remove any remaining sediment.

Anode Rod Maintenance and Replacement

Anode Rod Removal and Installation

Provides detailed steps for removing and installing the anode rod for tank protection.

Service and Leakage Checkpoints

Identifying Water Leak Sources

Guides users on how to diagnose and locate the source of water leaks around the unit.

Reference Parts Listing

Troubleshooting Guidelines

Lockout Conditions and Resetting

Explains different lockout types and the procedure for resetting the heater control.

System Error Codes

Intelli-Vent System Error Codes

Provides a detailed guide to system error codes, their causes, and corrective actions.

Other Symptoms and Solutions

Addressing Common Water Heater Problems

Offers solutions for various symptoms like insufficient hot water, overheating, and slow recovery.

Summary

Safe Installation, Use, and Service

Important Definitions

Defines key terms like Qualified Installer, Service Agency, and Gas Supplier for clarity.

General Safety Warnings

Fire and Explosion Hazard Warnings

Alerts users to risks of fire and explosion from improper use or storage of flammable materials.

Burn Hazard Warnings

Highlights the danger of scalding from hot water, especially for vulnerable individuals.

Carbon Monoxide and Flammable Vapors Warnings

Warns about CO poisoning risk and hazards from flammable vapors near the unit.

Introduction and Installation Preparation

Preparing for Installation Steps

Outlines essential preparatory steps before installing the water heater, including reading the manual.

Typical Installation Overview

Water Heater Component Identification

Lists and visually identifies all major parts and components of the water heater with corresponding numbers.

Water Piping and Heater Operation

Mixing Valve Usage and Scald Prevention

Provides guidance on using mixing valves to prevent scald hazards from hot water.

Water Heater Operational Sequence

Details the step-by-step process of the water heater's operation when a call for heat is initiated.

Electrical Requirements and Wiring

Electrical Safety and Connections

Covers essential electrical safety precautions, wiring requirements, and connection diagrams.

Safety Lockouts and Location

Safety Lockout Mechanisms

Explains the functions of high limit controls and pressure switches that shut down the heater.

Water Heater Location Considerations

Guides users on selecting an appropriate and safe location for the water heater installation.

Installation Clearances and Ambient Conditions

Air Requirements and Venting Notes

New Water Heater Installation

Water Piping and Hot Water Safety

Covers water piping installation and the significant risks associated with hot water scalding.

Space Heating System Integration

Explains requirements for integrating the water heater with space heating systems.

Combo Heating System Installation

Combo Heating System Requirements

Lists the essential components, standards, and conditions for Combo Heating system installations.

Combo Heating Installation Procedures

Details the necessary steps and considerations for installing a Combo Heating system.

Water Systems: Closed and Thermal Expansion

Understanding Closed Water Systems

Explains how water systems can become closed and the implications for pressure.

Thermal Expansion Hazards and Mitigation

Describes risks from thermal expansion in closed systems and how to mitigate them with expansion tanks.

Temperature-Pressure Relief Valve

T&P Valve Explosion Hazard and Requirements

Highlights explosion risks if the T&P valve is not properly installed or maintained.

T&P Valve Discharge Pipe Safety

Specifies crucial safety requirements for the T&P valve discharge piping installation.

High Altitude and Gas Piping Installation

T&P Relief Valve Insulation

Instructions for insulating the temperature-pressure relief valve to minimize heat loss.

High Altitude Installation Warnings

Addresses safety considerations and required modifications for operating the heater at high altitudes.

Gas Piping Safety and Hazards

Covers essential safety precautions and potential hazards related to gas piping installation.

Gas Supply, Piping, and Sediment Traps

Filling the Water Heater

Water Heater Filling Procedure and Cautions

Provides steps for filling the tank and essential safety precautions to avoid damage.

Vent Termination Clearances (Side Wall)

Side Wall Vent Terminal Clearance Table

Presents a table with minimum clearance requirements for side wall vent terminations.

Venting System Installation

Carbon Monoxide and Venting Hazards

Warns about the risks of carbon monoxide poisoning and venting system failures.

Side Wall Vent Terminal Installation

Provides specific instructions and diagrams for installing vent terminals on exterior walls.

Side Wall Venting for Cold Climates

Vent Termination Types

Tee and Roof Vent Terminal Installation

Details the installation requirements for tee fittings and roof vent terminals.

Concentric Vent Termination Installation

Vent Pipe Installation and Materials

Multiple Concentric Vent Spacing

Defines spacing requirements when installing multiple concentric vent terminations.

Approved Vent Pipe Materials

Lists the approved materials for exhaust and air intake vent pipes, including PVC, CPVC, and polypropylene.

Vent Pipe Sizing and Length Guidelines

Vent Screens Installation

Vent Screen Selection and Fitting

Guides users on choosing the correct vent screen based on vent length and proper installation methods.

General Vent Pipe Installation Rules

Vent Pipe Run Configuration

Specifies rules for routing vent pipes to prevent condensation buildup and ensure proper airflow.

Blower Assembly and Vent Connections

Blower Assembly Installation Steps

Details the procedures for safely installing and securing the blower assembly to the water heater.

Connecting Vent Pipes to Blower

Explains how to properly connect the vent piping to the blower assembly using couplings and clamps.

Condensate Management and Sound Suppression

Condensate Formation and Drainage

Describes how condensate forms in the vent system and provides instructions for its proper drainage.

Optional Sound Suppressor Use

Explains the function and installation of an optional sound suppressor to reduce noise.

Installation Checklist

Lighting Instructions

Pre-Lighting Safety Checks

Crucial safety steps and warnings to review before attempting to light the water heater.

Water Heater Lighting Procedure

Step-by-step instructions for safely lighting the water heater's burner using the ignition system.

Operating the Temperature Control System

Setting Water Temperature for Safety

Recommends setting lower temperatures to reduce scald hazards and improve energy efficiency.

Hot Water Scald Hazard Awareness

Reinforces the dangers of hot water and the importance of proper temperature settings.

Gas Control Valve;Thermostat Operation

Important Information for Operation

Startup Conditions and Condensation

Details normal condensation that may occur during initial startup and how to identify it.

Operational Conditions: Smelly Water

Addresses the common issue of smelly water and provides solutions, including anode rod maintenance.

Hydrogen Gas Hazard Warning

Alerts users to the potential risk of hydrogen gas buildup in unused systems.

Periodic Maintenance Schedule

General Upkeep and Cleaning

Provides guidance on routine checks, cleaning of the unit, and vent piping.

Venting System and Burner Inspection

Outlines annual inspection procedures for the vent system and burner for safety and performance.

Combustion Chamber and Burner Cleaning

Housekeeping and T&P Valve Test

Covers maintaining a safe area around the heater and testing the temperature-pressure relief valve.

Draining and Flushing the Water Heater

Draining the Water Heater Storage Tank

Step-by-step instructions for draining sediment and water from the tank.

Flushing the Water Heater Storage Tank

Instructions for flushing the tank to remove any remaining sediment.

Anode Rod Maintenance and Replacement

Anode Rod Removal and Installation

Provides detailed steps for removing and installing the anode rod for tank protection.

Service and Leakage Checkpoints

Identifying Water Leak Sources

Guides users on how to diagnose and locate the source of water leaks around the unit.

Reference Parts Listing

Troubleshooting Guidelines

Lockout Conditions and Resetting

Explains different lockout types and the procedure for resetting the heater control.

System Error Codes

Intelli-Vent System Error Codes

Provides a detailed guide to system error codes, their causes, and corrective actions.

Other Symptoms and Solutions

Addressing Common Water Heater Problems

Offers solutions for various symptoms like insufficient hot water, overheating, and slow recovery.

Giant UG40 Specifications

General IconGeneral
BrandGiant
ModelUG40
CategoryWater Heater
LanguageEnglish

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