andrews FASTflo LWHC56 Owner'S Manual Manual Download Page 1

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CONDENSING GAS WATER HEATER

WHC56, LWHC56 (Internal)

OWNER’S GUIDE MANUAL

Andrews. Built to perform.

Please read and understand these instructions before commencing installation and leave this manual with the customer for future reference.

SBA8089-2

Summary of Contents for FASTflo LWHC56

Page 1: ...HEATER WHC56 LWHC56 Internal OWNER S GUIDE MANUAL Andrews Built to perform Please read and understand these instructions before commencing installation and leave this manual with the customer for future reference SBA8089 2 ...

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Page 3: ...ier 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 Owner s Guide Thank you for purchasing this ANDREWS WATER HEATERS Condensing Gas Water Heater Before using please Read this manual completely for correct installation ...

Page 4: ...arts 10 Initial Operation 11 How to Use When using RC 7508M Clock Adjustment 12 Running Hot Water 13 Setting Hot Water Temperature 14 Filling Up the Bath 16 Confirmation Beeper On Off 17 Other Setting Options 18 Preventing Damage from Freezing 20 When Unused for an Extended Period 21 Regular Maintenance 23 Troubleshooting 25 Follow up Service 29 Specifications 30 ...

Page 5: ...ous injury and even death when ignored Denotes content that may result in fire serious injury and even death when ignored Denotes content that may result in bodily injury and physical damage when ignored The content following this icon is necessary to understand for safe and easy use of this water heater Remarks Be sure to do Earth Electric Shock Danger If you detect a gas leak 1 Do not try to lig...

Page 6: ...less they have been given supervision or instruction concerning use of the appliance by a person respon sible for their safety Children should be supervised to ensure that they do not play with the appliance Leave the proper clearance between the water heater and nearby objects trees timber boxes with flammable materials etc Left side Min 50mm Right side Min 50mm Do not place combustibles such as ...

Page 7: ... use hair spray or spray detergent in the vicinity of the heater Do not install in locations where excessive dust or debris will be in the air If this unit will be installed in a salon or other location where hair spray or aerosols will be used locate the unit away from where these products are used Do not use condensate discharged from the drain pipe for drinking or for consumption by animals To ...

Page 8: ...ncluding the boiler should be drained to avoid the risk of freezing If it is snowing check the exhaust gas vent and exhaust vent terminal for blockage Remark Important Safety Information 3 Do not discharge cold water from the hot water tap when the power on off button is off When discharging hot water check to make sure the ON OFF is on When discharging cold water from the hot water supply tap whi...

Page 9: ...nsate Drainage Blockage As safety feature the water heater will stop working if the condensate drainage becomes blocked Dur ing freezing conditions period this may be due to the forming of ice in the condensate drainage at the ex ternal part which locates out of the house Remove ice blockage by using of warm cloths around the pipe and press the Power On Off Button to turn off then turn on again to...

Page 10: ...maximum It is not a water leak Do not plug or block the drain line as it must always be allowed to freely flow Drain pipe Installation example Overview of Condensing Gas Water Heater This water heater is a high efficiency fully condensing appliance Unlike a traditional water heater a condensing type captures heat from the exhaust gas and uses it to preheat the incoming cold water as it passes thro...

Page 11: ...tallation configuration may be slightly different Main Unit Flue Collar Burner on indicator Water Supply Valve Gas Supply Valve Water Drain Valve with Water Filter Inside Water Inlet p 24 Intake pipe Front Cover If there is a problem with the unit a lamp will flash on the front of the unit p 28 Drain Pipe Discharges the condensate ...

Page 12: ... between 60 80 C hi temp blinks for 10 seconds P15 High Temperature Display Eg 40 C Selection switches that can be operated are indicated by the bar display lighting up or blinking Selection Bar Display Temperature Setting This is displayed when the burner is on Burner On Display Eg 10 15 Error Display Error is displayed when malfunction occurs P28 Scroll display to prevent the remote controller s...

Page 13: ...er make the following preparations Follow steps 1 through 4 1 Open the water supply valve Open a hot water fixture to confirm that water is available and then close the fixture again 3 Open the gas supply valve Hot water fixture 2 Turn on the power CLOSED 4 OPEN ...

Page 14: ...n the SET button is pressed or the console is left untouched for about 20 seconds the settings screen ends Eg AM 10 15 The time changes in 1 minute increments with each press on the button and then in 10 minute increments if the button is kept pressed down Eg 40 C In the event of a power cut or after disconnecting the power supply when the power is restored the clock on the display screen shows 0 ...

Page 15: ...controller first and then test the hot water temperature by hand Be especially careful if using hot water after previously using water at 60 C or above to prevent scalding While the shower is being used no one other than the user should change the temperature the power switch must not be turned off WARNING WARNING This is to prevent scalding if the temperature rises Conversely if the temperature d...

Page 16: ...hen using RC 7508M While the shower is being used no one other than the user should change the temperature the power switch must not be turned off WARNING This is to prevent scalding if the temperature rises Conversely if the temperature drops or the power switch is turned off the user may be upset when the water suddenly becomes much colder Here The ON OFF is lit ...

Page 17: ...ratures are approximations and may differ from actual temperatures depending on external factors such as the season and length of piping involved When low temperatures are set for washing dishes etc if the ambient water temperature is already quite high it may be difficult to ensure the resultant water temperature is as per the setting When the hot water temperature is adjusted using thermostat co...

Page 18: ...he bathplug into the plughole Turn on hot water Display example Check When the bath is full turn off the taps Please set to the highest temperature when using thermostat controlled water mixing valves WARNING Check the bathwater temperature with your hand be fore getting into the bath To prevent scalding Preparation The ON OFF is lit ...

Page 19: ...ss the ON OFF button for about five seconds Completion of setting Setting is possible regardless of whether the power switch is ON OFF The remote controller will emit a sound when any button is pushed This sound can be muted if it is desired Initial factory setting is with sound ...

Page 20: ...set to drain the unit On this Display 2 Initial setting factory setting 3 Scroll display P10 no yes Scroll display is turned on Scroll display is turned off 75 C 50 C no yes Condition is suitable for draining the unit P21 Stops draining the unit 48 C 40 C in 1 C increments 80 C Draining the unit P21 Maximum tempera ture setting P15 in 5 C increments ...

Page 21: ...mpletion of setting When the SET button is pressed or the console is left untouched for about 20 seconds the settings screen ends Repeat procedures 2 3 again to adjust other settings Operation On this Display Modification of the maximum temperature setting The maximum temperature setting can be modified Power is switched Off again This may not be displayed depending on the installation conditions ...

Page 22: ...nit from freezing Protect this plumbing with insulation If you are still worried that your heater will freeze contact the nearest ANDREWS WATER HEATERS agent When the temperature drops the freeze prevention heaters are automatically activated to keep the unit warm and prevent it from freezing Normal cold outside temperatures between 0 C 10 C with no wind The heater and piping can be damaged if col...

Page 23: ...minutes and then turn off the tap For conjunct setting Allow at least 2 minutes per unit Error display 11 may appear on the remote controller but this is not an error Do not turn the power switch Off Manual draining 3 4 5 When the water is completely drained replace all drain plugs and close the hot water fixtures 5 Open all cleanout plugs by turning them to the left Position of the cleanout plugs...

Page 24: ...ound the appliance is well ventilated open a window or a door if necessary Then operate the unit and verify that condensate is coming out of the drain pipe During normal use of the water heater condensate will begin to discharge from the drain pipe within 30 minutes of use However depending on the season and or installation site conditions it may take longer If water does not appear at the end of ...

Page 25: ... clean the remote controller deformation may occur The remote controller is water resistant but not water proof Keep it is dry as possible Caution Regular Maintenance 1 Inspection Once a month Equipment Remote Controller Wipe the surface with a wet cloth For dust and soot in the exhaust vent or flue terminal Check For abnormalities in external appearance discoloration or flaws Check For abnormal s...

Page 26: ... receive the discharged water 1 Close the water supply valve 2 Open all hot water fixtures 3 Remove the inlet and outlet drain plugs about 2L will drain out 4 Take the water drain valve with water filter out of the inlet See illustration to right 5 Clean the water drain valve with water filter with a brush under running water 6 Replace the water drain valve with water filter Take care not to lose ...

Page 27: ...than the temperature set on the remote controller If only a small amount of hot water is demanded it is possible for the temperature to be higher than the temperature set on the remote controller The water is too hot Have you allowed enough time for the cold water in the pipes to drain out Water takes time to become hot when turning the hot water fixture No water is available when a fixture is ope...

Page 28: ...ter available has decreased over time Is the water filter clogged P24 If the supply water is hard and has not been treated scale can build up in the water heater and decrease the maximum amount of hot water available To prevent scale from forming in the water heater a water softener or scale inhibitor is recommended Continued The temperature does not increase to set hot water temperature If the ho...

Page 29: ... For LP Is there enough gas in the tank Can other gas devices such as stoves be used This is normal The white smoke is actually steam White smoke comes out of the exhaust vent on a cold day Other Sounds The hot water is turbid This is harmless Small bubbles appear as the air in the water is heated and depressurized rapidly to atmospheric pressure The water appears blue The bath tub wash basin has ...

Page 30: ...ilure you are notified by the burner on indicator blinking at the front of the unit Please resolve the problem in accordance with the table below Fault occurs with the unit Make sure that the gas valve is open Close the hot water tap then reopen it and it is back to normal if the burner on indicator is no longer lit Burner on indicator Details of Failure Remedy Continuously blinking Lit Unlit Plea...

Page 31: ... this unit for a minimum of ten years after production has ceased These are the parts necessary to repair or maintain this unit Warranty First follow the instructions in the troubleshooting section P25 to P28 If the error is not corrected contact ANDREWS WATER HEATERS A request for service may be rejected if the water heater is installed in a location where working on the unit may be dangerous Con...

Page 32: ...Device Overheat Prevention Device Freezing Prevention Device Fan Rotation Detector Anchoring Screws Specifications Specifications Specifications may be changed without prior notice The capacity may differ slightly depending on the water pressure water supply piping conditions and water temperature Performance Item Model Name Type Ignition Minimum Pressure for Maximum flow Minimum Flow Rate Dimensi...

Page 33: ...22 59 27 61 26 Other load profiles for which the water heater is suitable to use and the corresponding water heating energy efficiency and annual electricity consumption 3 Thermostat temperature setting C 40 40 40 40 40 40 40 40 Sound power level L WA indoors dB 57 57 57 57 57 57 57 57 Ability to off peak hours functioning 3 Enables smart control settings 4 1 Electricity 2 Fuel 3 If applicable 4 I...

Page 34: ...evel indoors L WA dB 57 57 57 57 57 57 57 57 Daily fuel consumption Qfuel kWh 30 452 30 452 30 332 30 332 27 73 27 46 33 57 33 01 Emissions of nitrogen oxides NO X mg kWh 70 70 70 70 52 52 60 60 Weekly fuel consumption with smart controls Qfuel week sm kWh Weekly electricity consumption with smart controls Qelec week sm kWh Weekly fuel consumption without smart controls Qfuel week kWh 213 213 212 ...

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Page 36: ...03 Register now to activate your warranty www andrewswaterheaters co uk register a warranty Please make sure you attach proof of purchase for your warranty to be monitored All descriptions and illustrations provided in this document have been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the Conditions of Sale which are available on r...

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