andrews LWHi49 Owner'S Manual Download Page 19 | Manualshive

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17

General System Diagram

* The number of water heaters, fixtures, and

pumps will vary depending on the configuration of the hot water system.

Applicable Remote

Controller Functions

Functions other than

those shown on pages

28 to 31 can be used.

All functions
can be used.

Functions other than

those shown on pages

28 to 33 can be used.

Depending on the configuration of your system, not all functions may be used.

When you start using the system, cold
water in the piping must be discharged
before receiving hot water.

Water heater

Water heater

Instant hot
water is
available.

Hot water is circulated
in the piping.

Pump

Hot water

storage

tank

Instant hot
water is
available.

Water heater

Pump

Pump

Hot water is circulated
to the tank.

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Summary of Contents for LWHi49

Page 1: ...HiC56 Internal WHiX49 LWHiX49 WHiXC56 LWHiXC56 External OWNER S GUIDE Andrews Built to perform Please read and understand these instructions before commencing installation and leave this manual with the customer for future reference SBB80Z5 ...

Page 2: ......

Page 3: ...ollow 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 and operation instructions Ke...

Page 4: ...atic Water Heater ON or OFF Operation 20 Locking the Remote Controller 22 Clock Adjustment 23 Customizable Settings Misc settings 24 For System Rcrc Enabling Automatic Recirculation Operation 28 Manually Starting Recirculation Operation 29 Setting the Recirculation System Operation Timer 30 Single Water Heater Only Flow Meter Alarm 32 Preventing Damage from Freezing 34 When Unused for an Extended ...

Page 5: ...es 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 light any appliance 2 Do not touch any electric...

Page 6: ...nce and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved Children shall not play with the appliance Cleaning and user maintenance shall not be made by children without supervision Leave the proper clearance between the water heater and nearby objects trees timber boxes with flammable materials etc Left si...

Page 7: ...ay 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 Internal installation External installation Do not use condensate discharged from the drain pipe for drinking or for cons...

Page 8: ...tton is off condensation will occur within the heat exchanger causing poor combustion and damage to electrical components may occur as a result In the case of single lever water tap discharge cold water by completely turning the lever to the cold water side Do not use parts other than those specified for this equipment Preventing damage from freezing p 34 36 Damage can occur from frozen water with...

Page 9: ...maximum It is not a water leak Do not plug or block the drain line as it must always be allowed to freely flow 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 through the secondary heat exchanger...

Page 10: ...remote controller operation p 22 It is possible to automatically turn the water heater ON or OFF For recirculation systems It is possible to circulate hot water only during preferred times of day p 20 p 28 Automatically turned ON Automatically turned OFF Beep The initial setting is set to Powersave dsply No 1 If you use hot water or press a button Powersave dsply is released If you press the PROG ...

Page 11: ...r Heater Draining the water heater freeze prevention p 26 Restoring Default Settings Restoring default remote controller settings The set temperature can be restricted to a maximum level to prevent high temperature settings from being selected p 24 The remote controller can be muted so that it does not emit a tone when a button is pressed Beep Beep Beep Adjusting the Maximum Output Temperature Rem...

Page 12: ...or Inside Water Inlet p 39 If there is a problem with the unit a lamp will flash on the front of the unit p 44 The above illustration shows an example of installation The exact installation configuration may be slightly different Drain Pipe Condensing Model only Discharges the condensate WHiX49 LWHiX49 WHiXC56 LWHiXC56 Outdoor Wall Mounted Power flue Model General Parts 1 ...

Page 13: ... Mounted Power Vent Sealed Model Front Cover Intake Pipe Exhoust Pipe Gas Supply Valve Drain Pipe Discharges the condensate Water Drain Valve with Water Filter Water Supply Valve Inside Water Inlet p 39 External Weatherproof Power Point Main Unit Burner on indicator If there is a problem with the unit a lamp will flash on the front of the unit p 44 ...

Page 14: ...i49 Indoor Wall Mounted Power Vent Sealed Model Main Unit Front Cover Water Supply Valve Gas Supply Valve Coaxial Pipe Water Drain Valve with Water Filter Inside Water Inlet p 39 External Weatherproof Power Point General Parts 2 Burner on indicator If there is a problem with the unit a lamp will flash on the front of the unit p 44 ...

Page 15: ...e p 19 the flow meter alarm and other settings Remote Controller Part Number Use to change system settings or to return to the home screen If you press the menu button and press the temperature setting buttons is sometimes displayed however do not use this mode as it meant for installation or service personnel only Stops the tone that is emitted when an error occurs p 44 Cover shown in the open po...

Page 16: ...Screen Example The home screen is displayed when the button is ON Normally the hot water temperature and the clock etc are displayed Flame Symbol During normal operation the set temperature is displayed Display for Recirculation Operation Display for HighTemperature Temperature Setting Clock Display Error Code For systems that use recirculation operation the symbol is displayed when the power ON O...

Page 17: ...owing preparations Follow steps 1 through 4 1 2 3 4 Open the water supply valve CLOSED CLOSED OPEN OPEN Open a hot water fixture to confirm that water is available and then close the fixture again Hot water fixture Open the gas supply valve Turn on the power Ex WHiXC56 LWHiXC56 ...

Page 18: ...ulation operation During recirculation operation hot water is always circulated in the piping to provide instant hot water when a fixture is opened If you set the button to ON is displayed If synchro ON OFF is set to ON p 28 Water heater combined with a storage tank operation If a recirculation system is also installed hot water is always circulated in the piping to provide instant hot water when ...

Page 19: ...e used Functions other than those shown on pages 28 to 33 can be used Depending on the configuration of your system not all functions may be used When you start using the system cold water in the piping must be discharged before receiving hot water Water heater Water heater Instant hot water is available Hot water is circulated in the piping Pump Hot water storage tank Instant hot water is availab...

Page 20: ...se The indicator is lit The previously set hot water supply temperature is shown For systems with recirculation operation If you set the button to ON recirculation operation is automatically started If Synchro ON OFF was set to ON p 28 The setting temperature displayed may vary from the actual temperature at the fixture depending on conditions such as season or length of piping During operation th...

Page 21: ...e set for washing dishes etc if the incoming water temperature is already quite high it may be difficult to ensure the outgoing water temperature is as per the setting Please check the temperature displayed before using any hot water Be especially careful using hot water after the set temperature has been changed When the hot water temperature is adjusted using thermostat controlled water mixing v...

Page 22: ...tion For recirculation systems circulation is started or stopped according to the button condition ON or OFF The time changes in 10 minute increments with each press of the button and then in 1 hour increments if the button is kept pressed down If the previous setting is OK press the button without setting Start time If you do not want to set the Start time select located between AM 11 50 and PM 0...

Page 23: ...e your desired time Hint for operation Follwing this procedure allows for automated control of water heater operation without user interaction The setting time shown on the display of the remote controller is for example purposes only Ex 1 Both ON and OFF functions are automated Ex 2 Only ON function is automated Ex 3 Only OFF function is automated Automatically turned ON Automatically turned ON A...

Page 24: ...rations of and buttons are locked Approximately 3 seconds after locking the remote controller the display will return to the previous screen If you press these buttons Approximately 3 seconds after unlocking the remote controller the display will return to the previous screen To Unlock the Remote Controller Press and hold button for approximately 2 seconds to unlock the remote controller Cover sho...

Page 25: ...ton is kept pressed down If the display is left untouched for approximately 20 seconds without pressing the button the setting will be completed When the button is turned ON the home screen will be restored In the event of a power outage or after disconnecting power to the water heater when power is restored the clock on the display screen will show and the clock will need to be reset Normally whe...

Page 26: ...t using the buttons and then press the button Change the setting using the buttons Display Screen Power Saving Mode powersave dsply Yes the display will turn off and the clock will not be displayed when the power ON OFF button is turned OFF No 1 the display will not turn off and the clock will not be displayed when the power ON OFF button is turned OFF No 2 the display will not turn off and the cl...

Page 27: ... setting Normal Change the setting using the buttons Select using the buttons and then press the button Press the button inside the cover Select using the buttons Press the button The Misc settings screen appears Ex Normal Setting completed 3 1 2 Error Tone Settings System dependent option The remote controller can be muted so that it does not emit a tone when an error occurs Press the button insi...

Page 28: ...lowing steps 2 to 3 the drain function will stop 4 2 3 1 Restoring Default Settings Select settings can be restored to the factory default conditions See items marked with a in the Default Settings section p 53 button is OFF Press the button inside the cover Select using the buttons Press the button The Misc settings screen appears Select using the buttons and then press the button Select YES usin...

Page 29: ...27 Notes ...

Page 30: ... will be restored To check system status p 16 When synchro ON OFF is set to Yes recirculation can be activated automatically To change synchro ON OFF from Yes to No follow the same procedure as described below Select Synchro ON OFF and press the button 1 Press 2 Press the button Cover shown in the open position 1 Press the button inside the cover Select Recirc menu using the buttons 2 Press the bu...

Page 31: ...ll be completed 1 2 Display when the recirculation is set to OFF 1 Select Recirc on off using the buttons 2 Press the button Display when recirculation is set to ON Cover shown in the open position 2 1 1 Press the button inside the cover Select Recirc menu using the buttons 2 Press the button Operation Screen Display Description You can set this function if the button is ON Manually Starting Recir...

Page 32: ...ally The previous setting is displayed Every time when you press the button the time changes by one hour To keep the current Start time Press the button without changing the Start time and proceed to step 4 To add additional time periods to the current setting or to cancel the previous setting 1 Press the button without setting Start time 2 Press the button without setting End time 3 Follow the pr...

Page 33: ... 1 to 2 2 Select Cancelled using the buttons 3 Press the button To Cancel the Recirculation System Operation Timer The timer will not activate without pressing the button If the time is not set the time setting screen is displayed p 19 Until the timer is deactivated the recirculation system will operate daily at the set Start and End times All settings are cleared 3 Adjust the time period followin...

Page 34: ...n If the display is left untouched for approximately 20 seconds without pressing the button the setting will be completed and the home screen will be restored Preparation Default setting Alarm off Operation Screen Display Description If the flow meter alarm is being used to indicate when water delivery volume is reached to the preset volume If any hot water is being used besides what is going into...

Page 35: ...ature is same as the setting temperature The setting temperature displayed may vary from the actual temperature at the fixture depending on conditions such as season or length of piping Turn off the hot water when the alarm sounds to prevent overfilling If the hot water temperature has been set so that it does not require mixing set the mixing valve to its highest setting The hot water in the bath...

Page 36: ...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 37: ...nd close If multiple units are being used drain two minutes for each unit An 11 Error Code may appear on the remote controller This is not a malfunction of the unit Do not turn Power ON OFF Button OFF Manual Draining Close the water supply valve and disconnect the electrical power supplied to the unit 3 4 5When the water is completely drained replace all drain plugs and close the hot water fixture...

Page 38: ...tions it may take longer If water does not appear at the end of the drain line a qualified service technician must clean the condensate line Freezing is prevented within the device automatically by the freeze prevention heater Freezing cannot be prevented when the power plug is unplugged Recommendation the power plug is plugged when heater does not use Only for condensing model Water in an interna...

Page 39: ...ler deformation may occur The remote controller is water resistant but not water proof Keep it is dry as possible Caution Regular Maintenance 1 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 sounds during operation Check For water leaks from...

Page 40: ...the outside surface with a wet cloth then dry the surface Use a neutral detergent to clean any stains Do not use benzene oil or fatty detergents to clean the remote controller deformation may occur The remote controller is not water resistant Wipe the surface with a wet cloth Periodic Maintenance CAUTION Check Check Check Check For dust and soot in the flue exhaust For dust or debris in the air in...

Page 41: ... Close the water supply valve 2 Open all hot water fixtures 3 Remove the inlet and outlet drain plugs about 1 7 L L WHiXC56 and L WHiC56 0 8L L WHiX49 and L WHi49 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 T...

Page 42: ...button turned on No water is available when a fixture is opened Is the water supply cut off Is the heater frozen The hot water is not the correct temperature Is the hot water fixture sufficiently open Water takes time to become hot when turning the hot water fixture Have you allowed enough time for the cold water in the pipes to drain out The water is too hot Are the gas and water supply valves fu...

Page 43: ...mbing conditions can cause the temperature and pressure at a fixture to be unstable but it should stabilize after a short time There are some types of hot water taps that discharges large volumes of hot water at first but stabilize after time To keep the temperature stable the heater limits the amount of water that can flow through it to a small amount initially but the amount increases over time ...

Page 44: ...le the remote controller is locked these buttons cannot be used p 22 The plastic on the surface or buttons of the remote controller has torn peeled or air bubbles inside The surface of the remote controller is affixed with a protective sheet to prevent surface scratching etc at time of shipment This sheet can be removed or left as it is When leaving the protective sheet on areas frequently touched...

Page 45: ... is heated and depressurized rapidly to atmospheric pressure The water appears blue The bath tub wash basin has turned blue Colouration to a blue colour may be noticed from small traces of copper ion contained in the water and fat furring However there are not problems concerning health Colouration of the bath tub wash basin can be prevented by cleaning frequently Frequent water discharge from dra...

Page 46: ...s with combustion of the unit Please contact ANDREWS WATER HEATERS 99 F99 In the event of a failure 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...

Page 47: ... warranty Details of problem flashing error codes etc in as much detail as possible Your name address and telephone number Follow up Service 1 1 2 Model code Product name of water heater is displayed Ex Error code Screen display Example Operation Screen Display Description If more than one water heater is installed this procedure cannot be used Press the button button is pushed again Return to pre...

Page 48: ...e the parts necessary to repair or maintain this unit Warranty 1Press the button inside the cover Screen display Example Screen display Example Identifying units that require service system dependent Operation Screen Display Description If you press the button the screen of step 1 is displayed If you press the button the screen returns to the previous screen If the button is pushed or it is left u...

Page 49: ... 3 4 R 3 4 R 3 4 R 1 2 220 240V AC 50Hz Zincified Steel Plate Polyester Coating Stainless Steel Copper Sheeting Copper Tubing Flame Rod Thermal Fuse Pressure Relief Valve Lightning Protection Device ZNR Overheat Prevention Device Freezing Prevention Device Fan Rotation Detector Anchoring Screws Specifications Performance Item Model Name Type Ignition Minimum Pressure for Maximum flow Minimum Flow ...

Page 50: ...2 0 Litre R 3 4 R 3 4 R 3 4 220 240 VAC 50Hz Zincified Steel Plate Polyester Coating Stainless Steel Copper Sheeting Copper Tubing Flame Rod Thermal Fuse Pressure Relief Valve Lightning Protection Device ZNR Overheat Prevention Device Freezing Prevention Device Fan Rotation Detector Anchoring Screws Item Model Name Type Ignition Minimum Pressure for Maximum flow Minimum Flow Rate Dimensions Weight...

Page 51: ...s Steel Copper Sheeting Copper Tubing Flame Rod Thermal Fuse Pressure Relief Valve Lightning Protection Device ZNR Overheat Prevention Device Freezing Prevention Device Fan Rotation Detector Anchoring Screws Item Model Name Type Ignition Minimum Pressure for Maximum flow Minimum Flow Rate Dimensions Weight Water Holding Capacity Accessories Installation Air Supply Exhaust Connection Sizes Power Su...

Page 52: ...lief Valve Lightning Protection Device ZNR Overheat Prevention Device Freezing Prevention Device Fan Rotation Detector Anchoring Screws Item Model Name Type Ignition Minimum Pressure for Maximum flow Minimum Flow Rate Dimensions Weight Water Holding Capacity Accessories Installation Air Supply Exhaust Connection Sizes Power Supply Materials Water Inlet Hot Water Outlet Gas Inlet Supply Consumption...

Page 53: ... 47 20 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 61 66 61 66 58 62 58 62 Ability to off peak hours functioning 3 Enables smart control settings 4 1 Electricity 2 Fuel 3 If applicable 4 If smart ...

Page 54: ...ion with smart controls Qfuel week sm Weekly electricity consumption with smart controls Qelec week sm Weekly fuel consumption without smart controls Qfuel week Weekly electricity consumption without smart controls Qelec week kWh kWh kWh kWh kWh kWh WHi49 WHiX49 LWHi49 LWHiX49 WHiC56 WHiCX56 LWHiC56 LWHiCX56 0 233 0 205 0 202 0 216 0 227 0 194 0 227 0 215 30 433 30 321 29 779 30 114 26 334 26 211 ...

Page 55: ... item that can be restored to default See p 26 Restoring Default Settings Default Settings Water Quality If the heater is in a hard water area a suitable water conditioning device must be installed to prevent the build up of limescale within the heat exchanger Heat exchangers damaged by scaling are not covered by the manufacturer s warranty WATER QUALITYTABLE Maximum levels Description pH Total Di...

Page 56: ...ter as follows a Remove the free end of the drain hose H3 from the pail Place in sink or outside to drain b Close service valve V2 and open shutoff valve V4 Do not open shutoff valve V3 c Allow water to flow through the water heater for 5 minutes d Close shutoff valve V4 When unit has finished draining remove the inline filter at the cold water inlet and clean out any residue Place filter back int...

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Page 60: ...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 requ...

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