Giant UGC55S-100 Installation & Maintenance Manual
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Giant UGC55S-100 Installation & Maintenance Manual

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This manual must only be used by a qualified heating installer/service technician. Read and understand all instructions in this manual
before installing. Perform steps in the order given. Failure to comply will result in substantial property damage, severe personal injury, or
death.
NOTICE: GIANT 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.
www.giantinc.com
GI-IM048En-1013
UGC55S-100 / UGC55S-130 / UGC55S-160 / UGC55S-199
UGC80S-100 / UGC80S-130 / UGC80S-160 / UGC80S-199
UGC120S-100 / UGC120S-130 / UGC120S-160 / UGC120S-199
*A suffix of "LP" denotes propane gas
INSTALLATION
START-UP
MAINTENANCE
PARTS
Water Heater Models*

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Summary of Contents for Giant UGC55S-100

  • Page 1 Perform steps in the order given. Failure to comply will result in substantial property damage, severe personal injury, or death. NOTICE: GIANT reserves the right to make product changes or updates without notice and will not be held liable for typographical errors in literature.
  • Page 2 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 APPLIANCE. WHAT TO DO IF YOU SMELL GAS ...

  • Page 3: Foreword

    In some circumstances, the property owner or his/her agent assumes the role, and at government installations, the commanding officer or departmental official may be the AHJ. NOTE: GIANT, Inc. reserves the right to modify product technical specifications and components without prior notice. FOR THE INSTALLER This manual must only be used by a qualified heating installer/service technician.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS   FOREWORD ....................................3   FOR THE INSTALLER................................. 3   PART 1 – GENERAL SAFETY INFORMATION .......................... 6   A. PRECAUTIONS ..................................6   B. IMPROPER COMBUSTION ................................ 6   C. GAS ......................................6   D. WHEN SERVICING THE HEATER ............................. 6  ...
  • Page 5 PART 10 – TROUBLESHOOTING ............................46   A. ERROR CODE ..................................46   B. HEATER ERROR ..................................46   C. LOCKOUT ....................................46   PART 11 - MAINTENANCE ............................... 51   MAINTENANCE NOTES ....................................52   GIANT CUSTOMER INSTALLATION RECORD FORM ............................ 53 GI-IM048En-1013...

  • Page 6: Part 1 - General Safety Information

    PART 1 – GENERAL SAFETY INFORMATION A. PRECAUTIONS This water heater is for indoor installations only. Clearance to combustible materials: 0” top, bottom, sides and back. Unit must have room for service: 24” (61 cm) front and 12” (30 cm) sides are minimum recommended service clearances. (A combustible door or removable panel is acceptable front clearance.) This water heater has been approved for closet installation, and installation on combustible flooring.

  • Page 7: Part 2 - Before You Start

    PART 2 – BEFORE YOU START A. WHAT’S IN THE BOX Also included with the heater:  Intake PVC Tee with Screens  Exhaust PVC Coupling with Screens  Temperature and Pressure Relief Valve  Installation Manual  Warranty  Solar Addendum (Solar Models Only) ...

  • Page 8: Optional Equipment

    If the condensate outlet on the heater is lower than the drain, you must use a condensate removal pump (kit p/n 554200 available from GIANT.) In addition, local authorities may require a condensate neutralizer to neutralize the condensate. Condensate neutralizers are made up of lime crystals, marble or phosphate chips.

  • Page 9: Before Locating The Heater

    A. BEFORE LOCATING THE HEATER Incorrect ambient conditions can lead to damage to the heating system and put safe operation at risk. Ensure that the heater installation location adheres to the information included in this manual. Failure to do so could result in property damage, serious personal injury, or death.

  • Page 10: Clearances For Service Access

    C. CLEARANCES FOR SERVICE ACCESS Figure 1: Minimum Service Clearances NOTE: If you do not provide the minimum clearances shown in Figure 1, it might not be possible to service the heater without removing it from the space. The space must be provided with combustion/ventilation air openings correctly sized for all other appliances located in the same space as the heater.

  • Page 11: Direct Vent Installation Of Exhaust Vent And Intake Pipe

    1. DIRECT VENT INSTALLATION OF EXHAUST VENT AND INTAKE PIPE If installing a direct vent option, combustion air must be drawn from the outdoors directly into the water heater intake, and exhaust must terminate outside. There are three basic direct vent options detailed in this manual: 1.

  • Page 12: Removing A Heater From A Common Vent System

    PRODUCTS TO AVOID AREAS LIKELY TO HAVE CONTAMINANTS Spray cans containing fluorocarbons Dry cleaning/laundry areas and establishments Permanent wave solutions Swimming pools Chlorinated waxes/cleaners Metal fabrication plants Chlorine-based swimming pool chemicals Beauty shops Calcium chloride used for thawing Refrigeration repair shops Sodium chloride used for water softening Photo processing plants Refrigerant leaks...

  • Page 13: Water Chemistry

    Chemical imbalance of the water supply may affect efficiency and cause severe damage to the water heater and associated equipment. GIANT recommends having water quality professionally analyzed to determine whether it is necessary to install a water softener. It is important that the water chemistry on both the domestic hot water and central heating sides are checked before installing the water heater, as water quality will affect the reliability of the system.
  • Page 14 Figure 3 – *All dimensions are approximate – A suffix of “LP” denotes propane gas - LP-179-B UNCRATING HEATER – Any claims for damage or shortage in shipment must be filed immediately against the transportation company by the consignee. GI-IM048En-1013...

  • Page 15: Part 4 - Heater Piping

    COLD WEATHER HANDLING – If the heater has been stored in a very cold location (BELOW 0 F (-18 C)) before installation, handle with care until the plastic components come to room temperature. Remove all sides of the shipping crate to allow the heater to be lifted into its installation location. PERFORMANCE SPECIFICATIONS FOR PHOENIX MODELS Temperature Rise BTU/HR...

  • Page 16: Scalding

    B. SCALDING APPROXIMATE TIME / TEMPERATURE RELATIONSHIPS IN SCALDS F (49 More than 5 minutes F (52 1 ½ to 2 minutes F (54 About 30 seconds F (57 About 10 seconds F (60 Less than 5 seconds F (63 Less than 3 seconds F (66 About 1 ½...

  • Page 17: Water Piping

    EXPANSION TANK AND MAKE-UP WATER 1. Ensure that the expansion tank is sized to correctly handle heater and system water volume and temperature. Undersized expansion tanks cause system water to be lost from the relief valve, causing make-up water to be added. Eventual heater failure can result due to excessive make-up water addition.

  • Page 18: Piping Diagram

    H. PIPING DIAGRAM Figure 4: Phoenix With Air Handler NOTES: 1. Minimum pipe size should match unit connection size. Upsize pipe accordingly if greater flow is required. 2. A thermal expansion tank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold water inlet.
  • Page 19 Figure 5: Phoenix with Air Handler on Side NOTES: 1. Minimum pipe size should match unit connection size. Upsize pipe accordingly if greater flow is required. 2. A thermal expansion tank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold water inlet.
  • Page 20 Figure 6: Reverse Manifold and Piping Diagram for Phoenix - LP-179-N NOTES: 1. Minimum pipe size should match unit connection size. Upsize pipe accordingly if greater flow is required. 2. A thermal expansion tank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold water inlet.
  • Page 21 Figure 7: Closed Loop with Radiant Heating - LP-179-U NOTES: 1. Minimum pipe size should match unit connection size. Upsize pipe accordingly if greater flow is required. 2. A thermal expansion tank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold water inlet.
  • Page 22 Figure 8: Phoenix With Storage Tank NOTES: 1. Minimum pipe size should match unit connection size. Upsize pipe accordingly if greater flow is required. 2. A thermal expansion tank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold water inlet.
  • Page 23 Figure 9: Phoenix with Recirculation Line and Thermostatic Mixing Valve Piping NOTES: 1. Minimum pipe size should match unit connection size. Upsize pipe accordingly if greater flow is required. 2. A thermal expansion tank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold water inlet.

  • Page 24: Part 5 - Venting, Combustion Air And Condensate Removal

    PART 5 – VENTING, COMBUSTION AIR AND CONDENSATE REMOVAL The heater must be vented as detailed in this Venting Section. Ensure exhaust vent and intake piping complies with these instructions regarding vent system. Inspect finished exhaust vent and intake piping thoroughly to ensure all joints are well secured, airtight, and comply with all applicable code requirements, as well as with the instructions provided in this manual.

  • Page 25: Requirements For Installation In Canada

    When installing AL29-4C vent piping, install a PVC-to-stainless adapter at the heater vent connection, and at the termination when using an GIANT PVC termination kit. DO NOT mix AL-29-4C piping from different manufacturers unless using adapters specifically designed for the purpose by the manufacturer.

  • Page 26: Determine Intake Pipe Location

    g. When adjacent to a public walkway, locate exit terminal at least seven (7) feet (2.1 m) above grade. h. Do not locate the exhaust directly under roof overhangs to prevent icicles from forming. i. Provide four (4) feet (1.2 m) clearance from the inside corner of vertical walls, chimneys, etc., as well as horizontal corners created by roof overhangs.

  • Page 27: Exhaust Vent And Intake Pipe Sizing

    E. EXHAUST VENT AND INTAKE PIPE SIZING 1. The exhaust vent and intake pipe size is 2" (5 cm) for the PH100 and PH130 and 3" (7.6 cm) for the PH160 and PH199. 2. The maximum total equivalent length of 2” (5 cm) exhaust vent and intake pipe must not exceed 85 feet (26 m). The total maximum equivalent length of 3”...

  • Page 28: Exhaust Vent And Intake Pipe Installation

    14. A screened straight coupling is provided with the heater for use as an outside exhaust termination. 15. A screened inlet air tee is provided with the heater to be used as an outside intake termination. Table 8 lists optional intake air/exhaust vent terminations available from GIANT: DESCRIPTION STOCK CODE 2”...
  • Page 29 Be sure to locate the heater such that the exhaust vent and intake piping can be routed through the building and properly terminated. Different vent terminals can be used to simplify and eliminate multiple penetrations in the building structure (refer to the Venting Section).
  • Page 30 Figure 11: Sidewall Venting - NOTE: This drawing is meant to demonstrate system venting only. The installer is responsible for all equipment and detailing required by local codes. GI-IM048En-1013...
  • Page 31 Figure 12: Concentric Venting - NOTE: This drawing is meant to demonstrate system venting only. The installer is responsible for all equipment and detailing required by local codes. GI-IM048En-1013...
  • Page 32 Figure 13: LP-179-F - NOTE: This drawing is meant to demonstrate system venting only. The installer is responsible for all equipment and detailing required by local codes. GI-IM048En-1013...

  • Page 33: Venting Through An Existing System

    Figure 14: Horizontal Venting - NOTE: Drawing is meant to demonstrate system venting ONLY. NOTES: A. For every 1” (2.5 cm) of overhang, the exhaust vent must be located 1” (2.5 cm) vertical below overhang (overhang means top of building structure and not two adjacent walls [corner of building]).
  • Page 34 CONCENTRIC VENTING THROUGH AN EXISTING SYSTEM NOTE: The following instructions refer only to venting through an existing vent system, and not to venting with GIANT’s concentric vent kits. Refer to Concentric Vent Kit installation manual (LP-166) for further concentric venting information and instructions.

  • Page 35: Indoor Combustion Air Installation In Confined Or Unconfined Space

    VENT / AIR INLET SIZE MINIMUM EXISTING VENT / CHASE SIZE 2” (5 cm) 4” (10 cm) 3” (7.6 cm) 5” (13 cm) 4” (10 cm) 7” (18 cm) Table 9 – Minimum Vent / Chase Sizing VENTING AS A CHASE When venting as a chase, follow all instructions included in Part 5 –...
  • Page 36 Figure 18 GI-IM048En-1013...

  • Page 37: Condensate Removal System

    If the heater condensate outlet is lower than the drain, you must use a condensate removal pump (kit p/n 554200 available from GIANT). If required by local authorities, a condensate filter of lime crystals, marble, or phosphate chips will neutralize slightly acidic condensate.

  • Page 38: Part 6 - Wiring

    The heater has the capability of an outdoor reset. Connecting an outdoor sensor allows the heater to operate at optimum efficiency. GIANT offers an outdoor sensor, p/n 7250P-319. The outdoor sensor must be a 12K NTC sensor. Use a minimum 22 AWG wire for runs of 100 feet (30.5 m) or less and minimum 18 AWG wire for runs up to 150 feet (45.7 m).

  • Page 39: Internal Wiring Diagram

    D. INTERNAL WIRING DIAGRAM Figure 21: Wiring Diagram GI-IM048En-1013...
  • Page 40 Figure 22: LP-179-L GI-IM048En-1013...

  • Page 41: Part 7 - Gas Connections

    PART 7 – GAS CONNECTIONS Failure to follow all precautions could result in fire, explosion, severe injury or death! The gas supply shall have a maximum inlet pressure of less than 14" water column (35.6 cm), ½ pound pressure (3.5 kPa), and a minimum of 3.5"...

  • Page 42: Gas Valve

    Figure 24: Gas Valve LP-179-P Do not do a gas conversion on this water heater without an officially approved conversion kit and instructions supplied by GIANT. Failure to use a conversion kit when converting the heater to fire on Natural or LP gas will result in extremely dangerous burner operation, leading to fire, explosion, severe injury or death.

  • Page 43: Part 8 - Start-Up Procedure

    PART 8 – START-UP PROCEDURE FOR YOUR OWN SAFETY READ BEFORE OPERATING 1. This water heater does not have pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. 2.

  • Page 44: Outdoor Reset

    Function Value |d1| Actual temperature from upper tank sensor |d2| Actual temperature from lower sensor |d3| — (Not used) |d4| — |308| (Not used) |d5| Outdoor sensor |d6| Actual fan speed multiplied by 10 (Example: If fan speed displayed is |410| RPM x 10 = 4100 actual fan speed) |d7|...

  • Page 45: Test Mode

    ‘‘DU’’ setting / Function 9 Function 11 Function 12 Figure 25 - NOTE: The maximum tank temperature is 160 F (71 C), independent of all settings described above. E. TEST MODE This function is intended to simplify the gas valve adjustment if needed. Listed below are the recommended limits on each heater and the combustion settings.

  • Page 46: Part 9 - Shutdown

    In unusually dirty or dusty conditions, care must be taken to keep water heater burner door in place. Failure to do so VOIDS WARRANTY! Allowing the heater to operate with a dirty combustion chamber will hurt operation. Failure to clean the heat exchanger as needed by the installation location could result in heater failure, property damage, personal injury, or death.
  • Page 47 (If the switch is not functioning properly, replace it. 1. Check line voltage. Must be between 100 – 128 volts. 2. If available, connect a PC and, using GIANT service software, check the 24v supply display in the lower left corner of the screen. The number displayed must be greater than 128 and should be greater than 250.
  • Page 48 If the display flashes a code other than F01, follow the troubleshooting guide for that code. 7. If the flue temperature increases to over 190 F (88 C), consult GIANT for further assistance. Interrupted or shorted 1. Check the electrical connection to the appropriate temperature sensor.
  • Page 49 Figure 26: LP-179-J GI-IM048En-1013...
  • Page 50 Figure 27: LP-179-H GI-IM048En-1013...

  • Page 51: Part 11 - Maintenance

    PART 11 - MAINTENANCE In unusually dirty or dusty conditions, care must be taken to keep water heater cabinet door in place at all times. Failure to do so VOIDS WARRANTY! Allowing the water heater to operate with a dirty combustion chamber will hurt operation. Failure to clean the heat exchanger as needed by the installation location could result in water heater failure, property damage, personal injury, or death.

  • Page 52: Maintenance Notes

    MAINTENANCE NOTES GI-IM048En-1013...

  • Page 53: Giant Customer Installation Record Form

    GIANT CUSTOMER INSTALLATION RECORD FORM The following form should be completed by the installer for you to keep as a record of the installation in case of a warranty claim. After reading the important notes at the bottom of the page, please also sign this document.
  • Page 54 Giant Factories Inc. Telephone: (514) 645-8893 Toll free: 1-800-363-9354 General fax: (514) 640-0969 Customer Service fax: (514) 645-8413 www.giantinc.com GI-IM048En-1013...

This manual is also suitable for:

Ugc55s-130Ugc55s-160Ugc55s-199Ugc80s-100Ugc80s-130Ugc80s-160 ... Show all

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