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FOR INDOOR APPLICATIONS ONLY
UGTC-199N
UGTC-199P
UGTC-152N
UGTC-152P
ANS Z21.10.3
READ ALL OF THE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR OPERATING THIS WATER HEATER.
safety
performed.
WARNING
— Do not store or use gasoline or other flammable vapors 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.
If you cannot reach your gas supplier, call the fire department.
—
CSA 4.3
may result causing property damage, personal injury or death.
Direct Vent Tankless Water Heater
-29.
GI-IM045En-0213
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Table of Contents
Related Manuals for Giant UGTC-199N
Summary of Contents for Giant UGTC-199N
- Page 1 Direct Vent Tankless Water Heater FOR INDOOR APPLICATIONS ONLY UGTC-199N UGTC-199P UGTC-152N UGTC-152P ANS Z21.10.3 CSA 4.3 READ ALL OF THE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR OPERATING THIS WATER HEATER. safety -29. performed. WARNING may result causing property damage, personal injury or death.
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Page 2: Table Of Contents
If you have any questions or feel that the manual is incomplete contact Giant at 1-800-363-9354 Safety Definitions This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. -
Page 3: Safety Behaviors And Practices For The Consumer And Installer
Safety Behaviors and Practices for the Consumer and Installer WARNING Before operating, smell all around the appliance Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not area for gas. -
Page 4: Installation Instructions
Installation Instructions Installer Qualifications General Instructions A licensed professional must install the appliance, DO NOT inspect it, and leak test it before use. The warranty Do not install the UGTC-152 or the UGTC-199 will be voided due to improper installation. outdoors. -
Page 5: Prepare For Installation
Prepare for installation You must follow the installation instructions and Parts included those in Care and Maintenance for adequate combustion air intake and exhaust. Tankless water heater INFORMATION MC-91-2 temperature controller (integrated into If a water heater is installed in a closed water the front panel) supply system, such as one having a backflow preventer in the cold water supply line, means... -
Page 6: Determine Installation Location
Determine Installation Location You must ensure that clearances will be met and that Environment the vent length will be within required limits. Air surrounding the water heater, venting, and vent Consider the installation environment, water quality, termination(s) is used for combustion and must be and need for freeze protection. -
Page 7: Vent Termination Clearances
Vent Termination Clearances You must install a vent termination to bring in combustion air and expel exhaust. TERMINATION INSIDE CORNER DETAIL Clearance in Ref. A also applies to anticipated snow line SNOW FIXED CLOSED OPERABLE FIXED AIR SUPPLY INLET CLOSED OPERABLE VENT TERMINAL AREA WHERE TERMINAL... -
Page 8: Additional Clearances
Additional clearances Check on whether local codes supersede these clearances. Avoid termination locations near a dryer vent. Avoid termination locations near commercial cooking exhaust. You must install a vent termination at least 12 (0.30 m ) to inches from the ground. -
Page 9: Freeze Protection
Unit clearances Freeze Protection Make sure that in case of freezing weather that the to top water heater and its water lines are protected to prevent freezing. Damage due to freezing is not covered by the warranty. Loss of freeze protection may result in water damage to front from a burst heat exchanger or water lines. -
Page 10: Maximum Vent Length
Maximum vent length Maximum vent length with concentric venting Maximum vent length for Centrotherm 2 Pipe InnoFlue Vent System (single wall SW, 3 inch 1. Determine the number of 90 degree elbows in diameter) the vent system. (Two 45 degree elbows count as one 90 degree elbow.) 2. -
Page 11: Checklist To Determine Installation Location
Mount to Wall Checklist to Determine Installation Location □ The water heater is not exposed to corrosive compounds in the air. □ The water heater location complies with the wall installation clearances. brackets □ The planned venting will not exceed the maximum length for the number of elbows used. -
Page 12: Installation Of Venting
The vent system must vent directly to the outside If it becomes necessary to access an enclosed vent of the building and use outside air for combustion. system for service or repairs, Giant is not responsible Avoid dips or sags in horizontal vent runs by for any costs or difficulties in accessing the vent installing supports per the vent manufacturer’s... - Page 13 Flue Installation with Concentric Venting Install the venting termination according to the diagrams and instructions below. Horizontal Termination Slope the venting toward the appliance according to the vent manufacturers installation instructions. Dispose of condensate per local codes. Vertical Termination Slope the venting toward the appliance according to the vent manufacturers installation instructions.
- Page 14 Flue Installation with Centrotherm Venting Install the venting termination according to the diagrams and instructions below. Comply with the exhaust clearances found in the Giant Operation and Installation Manual. Only one appliance can be attached to the vent system.
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Page 15: Condensate
A condensate neutralizer kit, P/N 50000100-A , is Use only corrosion resistant materials for the available from Giant. The kit allows condensate to condensate drain lines such as PVC pipe or plastic flow through neutralizing media that raises the pH hose. -
Page 16: Installation Of Plumbing
Do not place any other type valve or shut off device between the relief valve and the water Giant strongly recommends the installation of heater. isolation valves on the cold and hot water lines because they provide the ability to isolate the water MUST DO heater from the structure’s plumbing and allow quick... - Page 17 Piping Diagram for Basic Installation Cold water Water inlet drain plug connection Condensate Condensate Hot water drain line trap drain plug outlet The condensate drain pipe (along its entire length) must be at least the same diameter as the drain line, (1/2 inch NPT). Refer to the Condensate section in the venting instructions...
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Page 18: Checklist For Plumbing
□ Check for proper water pressure to the water corrosive.) heater. Minimum water pressure is 50 psi. Giant Use approved connectors to connect the unit to recommends 60-80 psi for maximum the gas line. - Page 19 Example: 1300 The heating value of natural gas for your location is 1000 BTU/FT . The gas input of the UGTC-199N is 1110 199,000 BTU/HR. Additional appliances at the loca- tion require 65,000 BTU/hr. Therefore the cubic feet per hour = (199,000 + 65,000) / 1000 = 264 FT /HR.
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Page 20: Connect Electricity
Connect Electricity Adjust for High Altitude WARNING The gas and power to the water heater should be turned off. On the SW1 DIP switch (tan switches), set Do not use an extension cord or an adapter plug with switches 2 and 3 to the values shown in table below this appliance. -
Page 21: Adjust For Vent Length
Installation of Temperature Controller Adjust for Vent Length Adjust switch No. 1 in the SW1 DIP switch (tan WARNING switches) if required. Refer to the section “Maximum Turn the power off. Do not attempt to connect the vent length”. temperature controllers with the power on. Although the controller is a low voltage device, there is 120 volt potential next to the temperature controller connections inside the unit. -
Page 22: Mounting The Controller
Mounting the controller Configurations 1. Make three holes in the wall as shown. A maximum of 4 temperature controllers can be installed for a water heater or bank of water heaters. Outline of Remote This includes the controller built into an indoor water heater. -
Page 23: Final Checklist
Final Checklist □ □ Check the gas lines and connections for leaks. The water heater is not subject to corrosive compounds in the air. □ Confirm that the gas inlet pressure is within limits. □ The water supply does not contain chemicals or □... -
Page 24: Technical Data
Technical Data Specifications UGTC-152 UGTC-199 Minimum Gas Consumption Btu/h 15,200 Maximum Gas Consumption Btu/h 152,000 199,000 0.26 - 8.0 GPM 0.26 - 9.8 GPM Hot water capacity (Min - Max) * (1.0 - 30 L/min) (1.0 - 37 L/min) Temperature Setting (no controller) 120°... -
Page 25: Dimensions
Dimensions Inches (millimeters) ø 5.4 (137) 10.1 (257.7) 2.0 (52) 8.7 (222) (70.1) DIMENSION Inches (mm) A (GAS) 1.6 (40.2) A (COLD) 2.0 (50.2) A (HOT) 1.6 (41.2) A (CONDENSATE 0.9 (22.4) OUTLET) 5.0 (127.2) 1.9 (47.8) 0.52 (13.3) 2.2 (56.3) 2.3 (58.3) 5.0 (127.2) 2.0 (50) -
Page 26: Pressure Drop And Water Flow Curves
UGTC-152 Water Flow (gpm) The chart below only applies to incoming water temperatures of 70°F (21°C) or less. For NOTICE incoming water temperatures greater than 70°F (21°C) please contact Giant. Outlet Flow Data UGTC-199 UGTC-152 delta T - Temperature Rise (°F) -
Page 27: Ladder Diagram
Ladder Diagram UGTC Series Manual... -
Page 28: Recirculation Mode
Recirculation Mode For Comfort mode, set the 8th switch in the white The Giant water heater has the ability to control a set of switches (SW2) to ON. recirculation pump. Two modes are available, Economy and Comfort, which recirculate the water in 5. - Page 29 Recirculation Mode Sequence of Operation Water Heater Typical Pump ON Intervals* DIP switches (SW2 - white switches, #4, #8) should be Temperature set correctly for recirculation and mode. The Giant (minutes) Setting water heater should be turned on. Economy Comfort Pump recirculation begins when the water heater is °F...
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Page 30: Operation Instructions
UGTC-152P Important Facts about your Water Heater Thank you for purchasing a Giant Tankless Water Heater. For proper operation and safety, it is important to follow the instructions and adhere to all safety precautions. Read all of the instructions and the warranty thoroughly before operating this water heater. Keep this manual in a safe place. -
Page 31: Consumer Operation Guidelines For The Safe Operation Of Your Water Heater
Consumer Operation Guidelines for the Safe Operation of your Water Heater FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. ... -
Page 32: How To Use The Temperature Controller
How to use the Temperature Controller Dimensions (inches): 3.5 W x 4.75 H x 0.75 D The MC-91-2 controller is the standard temperature controller that is supplied with the water heater. On In Use indoor models it is integrated into the front panel. Indicator Priority The MCC-91-2 controller is for commercial and... -
Page 33: How To Set The Temperature
How to Set the Temperature This water heater requires a minimum flow rate to operate. This rate can be found on the specification page in this manual. In some cases when you are not getting hot water or if the water alternates between hot and cold, it is due to the water flow being below or close to the minimum flow rate. - Page 34 Temperatures Available with a Controller The water heater can deliver water at only one temperature setting at a time. The available temperatures are provided below. A temperature lower than 98° F (37° C) can be obtained at the tap by mixing with cold water. To change the temperature scale from Celsius to Fahrenheit or vice versa, press and hold the “On/Off”...
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Page 35: Diagnostic Codes
Temperature Options Without a Temperature Controller The default temperature setting for this appliance installed without a temperature controller is 120° F (49° C). If desired, the temperature setting can be changed to 140° F (60° C) by adjustment of a switch. In the SW1 tan switches, set switch 5 to ON to obtain 140°... -
Page 36: Diagnostic Codes And Remedies
Diagnostic Codes and Remedies WARNING Some of the checks below should be done by a licensed professional. Consumers should never attempt any action that they are not qualified to perform. Code Definition Remedy Power interruption during Bath Fill (Water will not flow when Turn off all hot water taps. - Page 37 LC2,…) Off button on the temperature controller 5 times. Repeated LC codes will eventually lockout “LC”) the water heater. Please call Giant technical department at 1-800-363-9354. Maintenance has been Indicates a licensed professional performed maintenance or corrected an issue. performed Clean inlet water supply filter.
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Page 38: Required Maintenance
Required Maintenance The appliance must be inspected annually by a licensed professional. Repairs and maintenance should be per- formed by a licensed professional. The licensed professional must verify proper operation after servicing. WARNING To protect yourself from harm, before performing maintenance: ... -
Page 39: Pressure Relief Valve
WARNING Freeze Protection Make sure that in case of freezing weather that the Testing the pressure relief valve should only be water heater and its water lines are adequately performed by a licensed professional. Scalding hot protected to prevent freezing. Damage due to water may be released under pressure. -
Page 40: Flushing The Heat Exchanger
An LC0~LC9 or “00” or 58 diagnostic code indicates the unit is beginning to lime up and must be flushed. Failure to flush the appliance will cause damage to the heat exchanger. Damage caused by lime build-up is not covered by the unit’s warranty. Giant strongly recommends installation of isolation valves to allow for flushing of the heat exchanger. -
Page 41: Manual Draining Of The Water Heater
Manual draining of the water heater WARNING To avoid burns, wait until the equipment cools down before draining the water. The water in the appliance will remain hot after it is turned off. If the water heater is not going to be used during a period of possible freezing weather, it is recommended that the water inside the water heater be drained. -
Page 42: State Regulations
State Regulations NOTICE BEFORE INSTALLATION This direct-vent appliance must be installed by a licensed professional. If you are not properly trained, you must not install this unit. IMPORTANT: In the State of Massachusetts (248 CMR 4.00 & 5.00) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:... -
Page 43: Consumer Warranty
A timer added to a standard recirculating pump is not considered as on demand. [2] Period of coverage is reduced to five (5) years from date of purchase if the Giant water heater temperature setting exceeds 160° F (71° C). - Page 44 To any damage or failure caused by utilizing the heater in conjunction with any other energy saving device or other source(s) of energy not approved Giant; or for other than use with potable water without any additives such as salt, chlorine, or chemicals other than those added for the purpose of rendering the water fit to drink.
- Page 45 (including damages from leakage) will be accepted. LIMITATION ON WARRANTIES Giant Factories Inc. shall not be liable for indirect, incidental, special, consequential or other similar damages that may arise, including lost profits, damage to person or property, loss of use, inconvenience, or liability arising from improper installation, service or use.
- Page 46 Notes/Maintenance Information...