User manual APPLIED ENERGY SELECTRONIC

[. . . ] (Confirmed with a single bleep) The unit will start and the motorised valve will reset. When the unit has got close to this setting it sounds a double bleep and the unit is ready for use. Flow light (green) will be on high. 2 fig 1. To Increase Temperature - Press the warmer button once in the centre (Confirmed with a single bleep). Wait for a few seconds for the shower to increase the temperature to the new setting. [. . . ] The electronics senses the incoming water temperature and the flow of water through the heat exchanger. It then works out how many heaters to switch on so that the shower temperature matches the temperature selected by the buttons. The amount of hot water available at the selected temperature is limited by the total power of the heater. The water is turned on and off by the solenoid valve built into the shower. A stabiliser is built into the flow valve to automatically compensate for small fluctuations in water pressure that frequently occur in households. There are three further controls to cater for exceptional reductions in water pressure to prevent the shower from getting too hot. a) If the flow of water is less than 1. 0 l/min the power to the elements is switched off, but the solenoid valve remains open allowing water to flow through the shower. b) If the outlet temperature sensor senses an excessive temperature the flow of water and the heating elements will automatically switch off. The electronics will signal over temperature condition (see "over temperature shutdown" section). c) A two stage mechanical thermal cut-out is mounted on the top of the heat exchanger independent of the electronics. Stage one switches the power off to the elements if it senses an excessive temperature. The switch operates with an audible click and will reset if cold water is run through the shower. The cut out will permanently switch off and it will then have to be replaced. A pressure relief device is fitted to safeguard against other extreme conditions. 5. Troubleshooting If the performance of the shower deteriorates in service, follow the checks in the "self help" table opposite before calling out the contractor. If these fail to restore the performance you should seek professional help. The person who installed the shower is probably the best one to repair it and is certainly the person to contact if you have a problem in the guarantee period. 6 Self Help Check List a) Water too HOT Press the cooler button when in NORMAL operation. Switch off electricity at ceiling / isolating switch, wait a few seconds, switch on again. (Note the shower should be switched off each time after use at the ceiling switch). Note: It there is no water flowing then the shower will automatically switch off after 30 seconds Check the water supply is turned on. Unit in over temperature mode see section on "purging" Check ceiling switch is on. There is a motor inside the shower used to adjust the flow and this always operates at the start of each shower. b) Water too COLD c) Spray pattern poor d) Display behaves erratically e) Water does not flow when Start / Stop button is pressed lights on "o" and then "t" flashing in display no lights f) Warmer / cooler buttons do not function g) Unit makes a whirring noise, especially at the start of the shower session Professional Service Check List This additional checklist is provided for the benefit of the qualified service representative. [. . . ] Check that the unit operates correctly (see temperature lock operation section). Fig. 14 10 Optional Accessories (standard fittings only) 2 Metre smooth shower hose 2 Metre convoluted shower hose 83-593530 83-792578 1 Metre riser rail Care pack (1 Metre rail / 2 Metre smooth hose) 83-792354 83-593529 Grab rail 83-593568 Spares Solenoid valve + seals Triac PCB Flow transducer Flow assy + motor (no outlet) Valve motor Cutout assy + cables Hose outlet assy complete 93-594101 93-594102 93-594103 93-594104 93-594105 93-594109 93-594110 Cable entries (top / bottom) Side section Logic PCB Front cover assy complete PRV housing complete Cable pack (all internal cables) Multi-mode handset 93-594111 93-594112 93-594113 93-594114 93-594115 93-594116 93-593565 Fig. 17 FIXING HOLE HOSE RETAINER Standard Accessories Style Accessories 11 Guarantee We, Applied Energy Products Ltd. , guarantee that should any part of this instant water heater prove to be defective by reason of faulty workmanship or material within 36 months (for outside U. K. contact your local distributor) of the date of purchase, we will replace the defective parts FREE OF CHARGE on condition that :(a) The appliance has been correctly installed and used on the supply circuit or voltage printed on the rating plate. [. . . ]