Related Manuals for AAFIRST AAWA5
Summary of Contents for AAFIRST AAWA5
- Page 1 Service manual AA FIRST Wall Mount Quality – Reliability – Integrity Models: AAWA5 AA First verified original instructions: EN version. T210089 Online AAWA5 service manual v1.00 Oct 2024...
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Page 2: Table Of Contents
9.1 Fault finding ..............................24 SECTION 10 Spare parts ............................. 25 10.1 AAWA5 Spare Parts ............................25 SECTION 11 Wiring diagrams ..........................27 11.1 Wiring diagram for all models ........................27 Contact details ..............................28 T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 3: Section 1 Before You Start
This manual is also available at our website https://www.aafirst.co.uk/ Explanation of symbols Read the WARNING Danger of Hot surface Highly instructions electric shock flammable Explanation of acronyms DMM - Digital multi meter. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 4: Section 2 Important Safety Instructions
Application The appliance is intended to be installed in a commercial environment, where it is supervised by a trained operator, who can also train staff in it’s safe use. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 5: Section 3 Warnings & Regulatory Information
• Whilst reasonable precaution is taken to prevent an overflow, AA First cannot be held responsible for any damage caused as a result of incorrect installation or blockage of the overflow or failure to direct T210089 Online AAWA5 service manual v1.00 Oct 2024... - Page 6 2⁰ on any axis. • The appliance does not use materials containing flammable blowing gases. • The appliance does not contain asbestos or oils containing polychlorinated biphenyl. T210089 Online AAWA5 service manual v1.00 Oct 2024...
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Page 7: Section 4 Technical Data
Note *Depth measurement excludes tap protrusion (+85mm). A pressure limiting valve must be fitted for mains water pressures above the max. limits stated above in accordance with local plumbing regulations. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 8: Section 5 General Product Description
In normal daily use, the appliance may be used as soon as the READY indicator comes on, but on first install, wait 15 minutes before starting to use. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 9: Section 7 Servicing The Internal Components
• Push the pin out of the tap handle. (the pin has a bend in the middle). • Unscrew the plastic bonnet to replace broken spring. (Small diameter down). • Replace bonnet and handle. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 10: Removing The Access Cover
• To re-fit the access cover, use the reverse of the procedure above. Indicator panel Probe loom Earth & Tri LED Overfill probe strap wire Front cover 2x Access cover retaining screws T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 11: The Sensing Probes
• Unscrew the sensing probe nut & remove (18mm AF spanner). • Pull out the probe assembly. Sensing probe • Sensor probe replacement is a reversal of the above procedure. Sensing probe boss T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 12: The Thermistor (Thermal Resistor)
• Unscrew the thermistor & remove from its tank boss (13mm open ended spanner). • Pull out the thermistor. • Thermistor replacement is a reversal of the above procedure. Baffle plate Main PCB Thermistor tank boss Thermistor T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 13: The Heating Element
• The heating elements are made from Incoloy 800 material, which gives them a long life expectancy. They are sealed into the tank by three silicone rubber washers and secured by 1/4”BSP brass lock-nuts. Element rating • XEN175SP 3.0kW Heating element for the AAWA5. Element Resistance • 3.0kW : 19-20 Ω. -
Page 14: Boil-Dry Protection
• Unscrew the boil dry thermal cut out (17mm AF spanner), as shown adjacent. • Replacement, is a reversal of the above procedure. Boil dry thermal cut-out T210089 Online AAWA5 service manual v1.00 Oct 2024... - Page 15 • Remove the access cover,see page 10. • Push in the button on the back of the cut- out, as shown adjacent. • Refit the access cover, and turn on the supplies. Boil dry thermal cut-out T210089 Online AAWA5 service manual v1.00 Oct 2024...
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Page 16: Over Boil Protection (Air-Vent)
(the over boil thermal cut - out Over boil should automatically reset). thermal cut-outs Vent fitting Services bracket T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 17: The Triac
Working clockwise from the pink would Wiring be the live out to the elements bracket (Brown) leaving the other terminal for the Grey cable . • Reverse the above procedure get the appliance back to functionality. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 18: The Printed Circuit Board
It is a small PCB-board-mounted component, which can be adjusted using a very small electrical screwdriver. • Locate the potentiometer on the main PCB. • To adjust temperature; turn anti-clockwise to increase temperature and clockwise to decrease temperature. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 19: Solenoid Valve Removal And Replacement
• Disconnect external incoming mains water supply pipework. • Unscrew the 3/4" plastic nut. Rubber • Remove solenoid valve and replace, washer refitting the electrical connections. 15mm tail 3/4" plastic nut Services bracket T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 20: The Storage Tank
• Allow the water to flow into the Tank lid bucket. gasket • Re-fit the tank drain plug, ensure that the drain plug washer is in place. Drain plug washer Drain plug T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 21: Scaling (Including Cleaning Probes)
• Flush tank out with water, ensuring that all traces of de-scaler are removed before re-assembly. • Flush tank out with copious amounts of fresh water, ensuring that all traces of de-scaler are removed before re-assembly. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 22: Silicone Tubes & Gaskets
• When carrying out a descale or any other maintenance, it is worth checking the silicone pipes and gasket for this. Pay particular attention to the water inlet pipe which can degrade from the inside and become weak and burst in use. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 23: Section 8 Safety Testing
• All readings should be less than 1Ω. • If any of the reading are above this value, check the earth connection inside the appliance. <1.0 Ω Insulation resistance meter or DMM T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 24: Section 9 Troubleshooting
• Triac blown. Taste Problems • Washing appliances or dish washer on same feed BLUE or RED hoses on same feed. • Outside interference. • Expired filter on feed. • Foreign body in boiler. T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 25: Section 10 Spare Parts
3/4” BSP nut, washer & brass tail push-fit XETR5SP Boil-dry safety cut-out (set @ 120^C) WMB5GREYSP Plastic front facia WBA247CSP Brass Tank Drain Plug WBA501SP Fibre Washer Not available separately Inlet Elbow Phone for cost SS Baffle Plates T210089 Online AAWA5 service manual v1.00 Oct 2024... - Page 26 SECTION 10 Spare parts 10.1 AAWA5 Spare Parts continued AA FIRST AA FIRST AAWA5 D.81/AA BAFFLE PLATES TANK BACK PANEL CASE T210089 Online AAWA5 service manual v1.00 Oct 2024...
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Page 27: Section 11 Wiring Diagrams
BOTTOM PROBE (YELLOW – 15) TOP PROBE (ORANGE – 16) TRIAC XE150G EARTH (GREEN – 17) BLACK TRI-LED EARTH (GREEN – 19) GREEN OVERFILL PROBE (RED – 20) PURPLE LINK PURPLE TEMPERATURE THERMISTOR CONTROL ADJUSTMENT T210089 Online AAWA5 service manual v1.00 Oct 2024... -
Page 28: Contact Details
Contact details Quality – Reliability – Integrity AA First Cedar House Grange Farm Long Lane Shaw Newbury RG14 2TF Tel: 01635 20248 https://www.aafirst.co.uk/ T210089 Online AAWA5 service manual v1.00 Oct 2024...
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