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FOR INDOOR APPLICATIONS ONLY
UGT-199N
UGT-199P
UGT-180N
UGT-180P
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
-28.
GI-IM044En-0213
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Table of Contents
Related Manuals for Giant UGT-199N
Summary of Contents for Giant UGT-199N
- Page 1 Direct Vent Tankless Water Heater FOR INDOOR APPLICATIONS ONLY UGT-199N UGT-199P UGT-180N UGT-180P ANS Z21.10.3 CSA 4.3 READ ALL OF THE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR OPERATING THIS WATER HEATER. safety -28. 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 appliance outdoors. will be voided due to improper installation. Do not install the appliance in an area where water The installer should have skills such as: leakage of the unit or connections will result in... -
Page 5: Prepare For Installation
Prepare for installation The appliance must be isolated from the gas supply Parts included piping system by closing its individual manual shutoff valve during any pressure testing of the gas Tankless water heater supply piping system at test pressures equal to or ... -
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 60" (1.52 m) Check on whether local codes supersede these clearances. between terminals at Avoid termination locations near a dryer vent. different levels Avoid termination locations near commercial cooking exhaust. You must install a vent termination at least 12 inches from the ground. - Page 9 Unit clearances to Non- to Combustibles Combustibles inches (mm) inches (mm) Top of Heater 6 * (152) 2 *(51) Back of Heater 0 (zero) 0 (zero) Front of Heater 6 (152) 6 (152) Sides of Heater 2 (51) 1/2 (13) Ground/Bottom 12 (305) 12 (305)
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Page 10: Maximum Vent Length
Maximum vent length Freeze Protection Make sure that in case of freezing weather that the 1. Determine the number of 90 degree elbows in water heater and its water lines are protected to the vent system. (Two 45 degree elbows count as prevent freezing. -
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
Flue Installation Install the venting termination according to the diagrams and instructions below. Horizontal Termination without using the Condensate Collector WARNING * The condensate collector must be used in horizontal terminations if a vertical rise in If the condensate collector is not used, the drain pipe the vent system exceeds 5ft. -
Page 14: Condensate
Condensate INFORMATION Condensate formation can occur in high efficiency direct vent appliances. Without proper drainage A condensate trap is available, P/N 50000101-A. condensate will damage the heat exchanger. Regions of cold climate will create more To prevent condensate damage follow these condensate in the vent system. -
Page 15: Installation Of Plumbing
The relief line should allow for complete Isolation Valves drainage of the valve and the line. Giant strongly recommends the installation of Do not place any other type valve or shut off isolation valves on the cold and hot water lines... - Page 16 Piping Diagram for Basic Installation Rinnai Water Heater Rinnai Equipment List Rinnai Water Heaters RIK-KIT (Optional) (3/4" Fittings Include: 2 Unions, 2 Ball Valves, 2 Drain Valves and 1 Pressure Relief Valve.) 3/4" Hot Water Supply Line For Building Fixtures This is not an engineered drawing.
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Page 17: Checklist For Plumbing
□ Check for proper water pressure to the water corrosive.) heater. Minimum water pressure is 20 psi. Giant Use approved connectors to connect the unit to recommends 30-80 psi for maximum the gas line. - Page 18 Example: 1300 The heating value of natural gas for your location is 1000 BTU/FT . The gas input of the UGT-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 19: Connect Electricity
Connect Electricity Adjust for High Altitude (or U.S. installations) WARNING The gas and power to the water heater should be Do not use an extension cord or an adapter plug with turned off. On the SW1 DIP switch (tan switches), set this appliance. -
Page 20: 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 vent length”. Turn the power off. Do not attempt to connect the temperature controllers with the power on. Although the controller is a low voltage device, there is 120 volt Checklist for Gas and Electricity potential next to the temperature controller... -
Page 21: 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 22: Final Checklist
□ Final Checklist A manual gas control valve has been placed in the gas line to the water heater. □ The water heater is not subject to corrosive □ Check the gas lines and connections for leaks. compounds in the air. □... -
Page 23: Technical Data
Technical Data Specifications UGT-180 UGT-199 Minimum Gas Consumption Btu/h 10,300 Maximum Gas Consumption Btu/h 180,000 199,000 0.26 - 7.5 GPM 0.26 - 9.8 GPM Hot water capacity (Min - Max) * (1.0 - 28.5 L/min) (1.0 - 37.0 L/min) Temperature Setting (no controller) 120°... -
Page 24: Dimensions
Dimensions Inches (millimeters) UGT-180, UGT-199 9.27 (235.5) 14.04 (356.6) 0.4~1.8(10~45) Variable 5.05 (128.1) DIA 0.62 (1.59) DIMEN- DIMEN- Inches Inches (mm) SION SION (mm) A (GAS) 1.31 (33.2) 4.33 (110) A (COLD) 1.93 (49) 2.89 (73.3) A (HOT) 1.35 (34.4) 1.85 (47) 4.21 (106.9) 3.44 (87.3) -
Page 25: Pressure Drop And Water Flow Curves
0.00 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. Water Flow Curve UGT-199 UGT-180 delta T - Temperature Rise (° F) -
Page 26: Ladder Diagram
Ladder Diagram UGT-199 ONLY UGT-199 ONLY UGT Series Manual... -
Page 27: Recirculation Mode
Recirculation Mode 4. Adjust the dip switch by moving the 4th switch in This water heater has the ability to control a the whie set of switches (SW2) to ON. recirculation pump. Two modes are available, For Economy mode, set the 8th switch in the Economy and Comfort, which recirculate the water in white set of switches (SW2) to OFF (default). - Page 28 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 water (minutes) Setting heater should be turned on. Economy Comfort Pump recirculation begins when the water heater is °F °C turned on.
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Page 29: Operation Instructions
UGT-180P 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 the safety precautions. Read all of the instructions and the warranty thoroughly before operating this water heater. Keep this manual in a safe place. -
Page 30: 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. A. -
Page 31: 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 32: 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 33 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 34: Temperature Options Without A Temperature Controller
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 Dip switch (tan switches), set switch 5 to ON to obtain 140°... -
Page 35: 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 36 Code Definition Remedy Electrical Grounding Check all components for electrical short. Outgoing Water Check sensor wiring for damage. Temperature Sensor Measure resistance of sensor. Clean sensor of scale build-up. Heat Exchanger Outgoing Replace sensor. Temperature Sensor Check for restrictions in air flow around unit and vent terminal. Check sensor wiring for damage.
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Page 37: 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 38: 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 39: Flushing The Heat Exchanger
An LC0~LC9 or “00” 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 40: 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 41: 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 42: Consumer Warranty
A timer added to a standard recircu- lating 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 43 5.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 addi- tives such as salt, chlorine, or chemicals other than those added for the purpose of rendering the water fit to drink.
- Page 44 No claims for incidental or consequential damages (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.