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WARNING
Read the Installation Manual carefully and be sure that your water heater has been properly
assembled, installed and maintained. Failure to follow these instructions exactly could result in a
fire or explosion, serious bodily injury and/or property damage.
Installation and service must be performed by a qualified plumber, a licensed gas fitter, or a pro-
fessional technician in accordance with all local codes.
Improper installation and/or operation by an unqualified person will void the warranty.
If the information in these instructions is not followed exactly, a fire or explosion may result,
causing property damage, personal injury, or death.
– 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.
• 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 performed by a qualified installer, service agency or the gas
supplier.
Date: 7/10/15
Marquis
User's Manual
Model
TWH180 / TWH180LP
Gas Condensing Water Heater
• Natural Gas ( NG ) – TWH180
• Liquid Propane Gas ( LP ) – TWH180LP
2015-7 Marquis User
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Related Manuals for TriangleTube Marquis TWH180
Summary of Contents for TriangleTube Marquis TWH180
- Page 1 Marquis User’s Manual Model TWH180 / TWH180LP Gas Condensing Water Heater • Natural Gas ( NG ) – TWH180 • Liquid Propane Gas ( LP ) – TWH180LP WARNING Read the Installation Manual carefully and be sure that your water heater has been properly assembled, installed and maintained.
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Page 2: Table Of Contents
Table of Contents Product and Safety Information Marquis Operation ......................1 Definitions ........................1 Operating Instructions ....................2-4 Method of Operation Before Operation ......................5 Operation ........................5 Display Panel ....................... 6 LCD Display ........................7 Operating Mode ......................8 DHW Setpoint Change Modes .................. -
Page 3: Product And Safety Information
Product & Safety Information Marquis Operation WARNING Cold water is heated by the burner as it passes To avoid product damage, personal injury, or through the stainless steel heat exchanger. The burn- even possible death, carefully read, under- er firing rate constantly adjusts to maintain the DHW stand, and follow all the instructions in the setpoint temperature. -
Page 4: Operating Instructions
Product & Safety Information OPERATING INSTRUCTIONS WARNING 1. STOP! Read the safety information above on FOR YOUR SAFETY READ this label. BEFORE OPERATING 2. Set the thermostat to lowest setting. (Do not use Water Heater unless it is completely If you do not follow these instructions exactly, filled with water.) a fire or explosion could result causing prop- 3. - Page 5 Product & Safety Information DANGER Vapors from flammable liquids can explode and catch fire causing death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the appliance. Keep flammable products DANGER Far away from Water Heater...
- Page 6 Product & Safety Information WARNING The Marquis Water Heater must be installed DO NOT attempt to install, repair, or service by a qualified plumber, a licensed gas fitter, the Water Heater by yourself. or a professional service technician. Contact a qualified technician if the Water Improper installation or operation can cause Heater needs repair or maintenance.
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Page 7: Method Of Operation
Method of Operation Before Operation Operation 1. Check the Gas Type (NG/LP) 1. Check for Gas leak When using the unit for the first time, check if gas Check for gas leak at the gas connection with soapy type matches with the gas type of the Water Heater. water. -
Page 8: Display Panel
Method of Operation Display panel Functionality Buttons Push (under 5 seconds) Hold (more than 5 seconds) ON/OFF Information mode with power ON. Installer mode with power OFF. Adjust set point (95°-125°) Adjust set point (125°-140°) Change temperature unit (°C / °F) Menu Scroll &... -
Page 9: Lcd Display
Method of Operation LCD Display S8~14 S15~19 Segment Name Description Anti-freeze mode Anti-Freeze mode indicated S8,S11,S14 Lock mode Lock mode indication S15 ~ S19 Communication state Communication state indication DHW mode Water heater operating indication S29 ~ S33 Dot, colon Separate indication Celsius mode Celsius temperature reading... -
Page 10: Operating Mode
Method of Operation Operating Mode After power on, the display shows a sequence of information during start-up. The following indications will appear: Indicate on digits Show Time Examples LCD test: All segments ON 1 seconds LCD test: All segments OFF 0.5 seconds Text “Pdn”... -
Page 11: Dhw Setpoint Change Modes
Method of Operation DHW Setpoint Change Mode The display shows the following information during water heating temperature setpoint changes. Indicate Indicator Current setpoint temperature 2, 3, 4 Temperature sign Celsius or Fahrenheit S35 or S38 If display is connected to main controller, normally the communication state will be S15 ~ S19 indicated. -
Page 12: Error Mode
Method of Operation Error mode The display will show the following information when an Error occurs. Indicate Indicator Error ‘ Er : ’ sign Segment 1 is blinking at 1Hz 1, 2 ,S30 Error Code 3, 4 If display is connected to main controller, normally the S15 ~ S19 communication state will be indicated. -
Page 13: Information Mode
Method of Operation Information mode When button ‘B’ is pressed shortly in standby mode, information display mode will be activated. Index Parameter Description A: Li or A: GA DHW Flow Current flow value(Li: L/m, GA: GPM) b: Fr Fan rpm Current fan rpm value C: Lc Lock Mode... -
Page 14: Installer Mode
Method of Operation Installer Mode When button ‘B’ is pressed for 5 seconds with the unit turned off via button ‘A’, installer mode will be activated. Index Numbers Parameter Description 1: EH Error History Previous fault codes (H0~H9) 2: cE Clear Error History Clears error history 3: In... -
Page 15: Maintenance
Maintenance Regular Maintenance Maintenance procedures [ Daily ] - This manual should remain with the Water Heater. - Check power source. After Water Heater installation is completed, the Make sure that the power cord is correctly connect- installation manual should be placed in a location ed. - Page 16 Maintenance - Cleaning Air Intake Filter - To properly maintain the water heater, you should clean air intake filter every month. A dirty air intake filter could cause unreliable operation. To clean air intake filter: 1. Press Power button on the control panel to turn off the water heater. 2.
- Page 17 Maintenance - Flushing the Water Heater - Close service valve, (V4), and open shutoff valve, Flushing the Heat Exchanger of the water heater is (V2). Do not open shutoff valve, (V1). required for optimal performance. Refer to the fol- - Allow water to flow through the water heater for 5 lowing instructions carefully before attempting the minutes.
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Page 18: Troubleshooting
Troubleshooting Troubleshooting Symptom Possible Causes Make sure that the ON/OFF button on the Control Panel has been turned ON. If the monitor on the Control Panel is blank, make sure the power cord is plugged in and fuses on the main controller are good. Make sure that water flows to the unit. -
Page 19: Diagnostics
Troubleshooting Diagnostics and suggested corrective actions This controller is able to record information about the water heater condition at the time of the ten previous faults or error. The control will display the following information. Display Condition Diagnostic Corrective Action(s) Check wiring for short Correct wiring per wiring diagram. -
Page 20: Diagnostics
Troubleshooting Display Condition Diagnostic Corrective Action(s) Burner may be operating too hot due to incorrect combustion. Occurs when flame Reset using manual switch. is detected when Reset screen on control FLAME FAULT Check for flame at burner through observation there should be no panel. -
Page 21: Error Codes
Error Codes Error codes Error Lockout Error Code Description Possible Remedies Code Type Press the Power button to clear the Error Code. If Error happens again: 1. Monitor the gas pressure to the water heater while in operation. Ensure pressure is between 3.5 and 14”... - Page 22 Error Codes Error Lockout Error Code Description Possible Remedies Code Type This Error Code will go away when operating water temperature decreases. If Error happens again: Operating Temperature Sensor 1. Check operating temperature sensor. Ensure connections are secure. Soft Lock Open or Short 2.
- Page 23 Error Codes Error Lockout Error Code Description Possible Remedies Code Type Press the Power button to clear the Error Code. If Error happens again: 1. Turn power OFF and ON at the main power switch internal to the water heater. Supply Water Valve Error Hard Lock 2.
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Page 24: Control Logic
Error Codes 1. Flame Detection... - Page 25 Error Codes 2. Gas Detection 3. Sensing air pressure.
- Page 26 Error Codes 4. ‘I/T’, ‘DHW’, ‘OP’ Sensor detects Error code contents Inlet water NTC open or short DHW NTC open or short OP NTC open or short Exhaust NTC open or short...
- Page 28 - Fully modulating - Natural gas or propane - Stainless steel construction - Direct vent with standard schedule 40 PVC - Outdoor Reset 1240 Forest Pkwy, Suite 100 • West Deptford, NJ 08066 p (856) 228 8881 f (856) 228 3584 www.triangletube.com...
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