Electronically controlled instantaneous water heater MCX: 27300, 27400 and 27600 models Installation instructions These appliances deliver water not exceeding 50 ºC in accordance with AS3498.
1. Overview When ordering spare parts, please always specify the appliance model and serial number. 4 5 6 1 2 7 3 Pos. Part.-No. Description Pos. Part.-No. Description 1 Hood with control panel 2 801119 MCX heating cartridge 3.5 kw /230V 801120 MCX heating cartridge 4.4 kw /230V 801121 MCX heating cartridge 5.7 kw /230V 3 MCX Safety temperature limiter (STB) with modification instructions, contact fitting, seals etc. 2-pole 1-pole 4 801122 MCX Filter 5 MCX water connector-set with two water connectors and seals (mounted and greased) fastening safety earthing terminal and filter 6 MCX complete fixing set (wall bracket with screws and dowels) 7 801123 Temperature sensor (polarity protection) not shown: 2 MCX 3 mains cable with earthed plug, cable seal and strain relief MCX 4 mains cable (without plug), cable seal and strain relief MCX 6 mains cable (without plug), cable seal and strain relief MCX set of small spare parts (seals, nozzle for cable entry, terminal, installation grease, screws, wheel nut & discs) Parts in Bold Type are available as Spare Parts. Other parts are available on request.
Contents 1. Overview............................................................................................... 2 2. Environment and recycling.................................................................................. 3 3. Safety instructions........................................................................................ 4 4. Technical specifications.................................................................................... 5 5. Typical Installations........................................................................................ 6 6. Description of appliance.................................................................................... 8 7. Installation.............................................................................................. 8 8. Commissioning.......................................................................................... 12 9. Flow rate adjustment..................................................................................... 12 10. Removing the appliance from the wall bracket................................................................. 13 11. Maintenance.......................................................................................... 14 12. Fault finding........................................................................................... 14 13. Notes................................................................................................ 15 2. Environment and recycling This symbol on the products and / or accompanying documents means that used electrical and electronic products should not be mixed with general household waste. For proper treatment, recovery and recycling, please take these products to designated collection points. Alternatively, in some countries you may be able to return your products to your local retailer upon the purchase of an equivalent new product. Disposing of this product correctly will help to save valuable resources and prevent any potential negative effects on human health and the environment which could otherwise arise from inappro priate waste handling. Please contact your local authority for further details of your nearest designated collection point. Penalties may be applicable for incorrect disposal of this waste, in accordance with national legislation. If you are a business user and you wish to discard electrical and electronic equipment, please contact your dealer or supplier for further information. This symbol is only valid in the European Union. 3
3. Safety instructions Installation, initial operation and maintenance of this appliance must only be conducted by an authorised professional, who will then be responsible for adherence to applicable standards and installation regulations. We assume no liability for any damages caused by failure to observe these instructions. Do not use the appliance until it has been correctly installed and unless it is in perfect working order. The appliance is suitable but not limited to domestic use and similar applications inside closed, frost-free rooms, and must only be used to heat potable water from mains supply. The appliance must never be exposed to frost. The appliance must be earthed at all times. The minimal specific water resistance must not fall below the value stated on the label. The maximum water pressure must not exceed the value on the label. Before commissioning for the first time and each time the appliance is emptied (e.g. due to work on the plumbing system, if there is a risk of freezing or in case of maintenance), the appliance must be vented correctly in accordance with the instructions in this manual. Do not remove the front cover under any circumstances before switching off the mains electrical supply to the unit. Never make technical modifications, either to the appliance itself or the electrical leads and water pipes. Pay attention to the fact that water temperatures in excess of approx. 43 C are perceived as hot, especially by children, and may cause a feeling of burning. Please note that the fittings and taps may be very hot when the appliance has been in use for some time. Water inlet temperature must not exceed 70 C. In case of malfunction, disconnect the fuses immediately. In case of leaks, cut off the cold water supply instantly. Repairs must only be carried out by the customer service department or an authorised professional. This appliance must not be used by any person (including children) with limited physical, sensorial or mental abilities or failing experience and/or knowledge unless they are supervised by a person responsible for their safety or received instructions about how to use the appliance. Children should be supervised in order to make sure that they do not play with the appliance. 4
4. Technical specifications Type MCX 3 MCX 4 MCX 6 Part no. 27300 27400 27600 Capacity (Liter) 0,2 0,2 0,2 Nominal pressure MPa (bar) 1 (10) 1 (10) 1 (10) Heating system IES system bare resistance element Required water resistance at 15 C in cm 1100 800 800 Electric supply 1/N/PE ~ 220 V 240 V Nominal power rating 3,5 kw 4,4 kw 5,7 kw Nominal current 15 A 19 A 25 A Temperature choice 35 C 38 C 45 C Factory temperature setting 38 C 38 C 38 C Maximum inlet temperature 70 C 70 C 70 C Factory flow setting at 0.3MPa (3 bar) 2,0 l/min 2,5 l/min 3,3 l/min Maximum temperature increase at rated power and a flow rate of... 1 2,0 l/min 25 K 31 K 41 K 2,5 l/min 20 K 25 K 33 K 3,0 l/min 17 K 21 K 27 K 3,5 l/min 14 K 18 K 23 K 4,0 l/min 12 K 16 K 20 K Required l/min to switch on (l/min) 1,2 1,5 1,5 Required l/min to switch off (l/min) 1,0 1,3 1,3 Min. required cable size 2) See note 2) Weight filled with water (kg) approx. 1,5 Dimensions H W D (mm) 135 186 87 Protection class acc. to VDE 1 Ingress protection according to VDE IP 25 1) Temperature rise (Kelvin) + cold-water temperature = maximum hot-water temperature ( C) 70 C 2) The cross sectional area of the connection cable must be in accordance with the power rating of the appliance and the specific requirements of AS/NZS 3000. 5
5. Typical installations Vented installation with special open outlet tap Flow controller MCX 3/4 : CSP 3 MCX 6 : CSP 6 Electrical connection with mains power cable (shorten if necessary) Angle valve G 1/2 Cable entry approx. 553 Axis wall bracket approx. 520 Dimensions in mm 6 Angle valve approx. 550 Top edge of wash basin approx.. 850
5. Typical installations Unvented installation (closed outlet) with tap for pressurised appliances Flow controller MCX 3/4 : CSP 3 MCX 6 : CSP 6 Electrical connection with mains power cable (shorten if necessary) Cable entry approx. 553 Axis wall bracket approx. 520 Dimensions in mm 7 Angle valve approx. 550 Angle valve G 1/2 Top edge of wash basin approx.. 850
6. Description of applicance The Zip instantaneous water heaters are compact electronically controlled water heaters. It is intended to provide economical heating of water for a wash basin when installed together with a sanitary water fitting. When the hot-water tap is opened, the heater switches itself on automatically when the minimum water flow rate is exceeded and heats the water as it passes through the appliance. There are 3 available temperature settings, 35ºC, 38ºC and 45ºC (Max). For best performance, always fit the special flow controller included with the appliance. This controller is inserted into the outler at the end of the tap and fits into any standard sleeve size M 22/24. The maximum possible outlet temperature is determined by the temperature of the incoming water, the rate of flow and the heating power of the appliance. This appliance delivers water not exceeding 50ºC in accordance with AS3498. 7. Installation The following regulations must be observed: Installation must comply with all statutory regulations, AS/NZS 3000, AS/NZS 3500, as well as those of the local electricity and water supply companies. The specifications on the rating plate. The rating plate is located under the appliance s cover. See Section 10 on removing the cover. Technical specifications. These instructions must be read and fully understood before commencing the installation. If in doubt, or in need of further guidance please ring Zip on 1800 638 633. Zip Instantaneous Hot Water heaters must be installed by a competent person familiar with electric instantaneous water heaters. Zip Instantaneous Hot Water heaters must be installed according to the specifi cation on the rating plate and the technical specifi cations. The appliance must be permanently connected to the electrical supply through an isolation switch as per AS/NZS 3000. To protect the appliance, a circuit breaker must be fi tted with a rating suitable for the nominal current of the appliance. The cross sectional area of the connection cable must be in accordance with the power rating of the appliance and the specifi c requirements of AS/NZS 3000. Take care to protect the wiring from damage during installation and ensure that the wiring is not directly accessible after installation. Check that the power supply is switched off prior to electrical connection. This appliance must be earthed. 8
7. Installation Installation site Appliance must only be installed in frost-free rooms. Never expose appliance to frost. The Appliance is designed for wall mounted installation and has to be installed with water connectors upwards. The appliance complies with protection class IP 25. In order to avoid thermal losses, the distance between the instantaneous water heater and the tapping point should be as small as possible (< 0.5m). For maintenance work, a shut-off valve should be installed in the supply line. The appliance must be accessible for maintenance work. The hot water pipes must be thermally insulated. See Section 4 for the specific resistance of the water of each model at 15 C. The specific resistance can be asked for with your water supply company. Installing the appliance 1. Secure the wall bracket to the wall with screws and wall plugs supplied (Fig. 1). 2. Place the appliance on the wall bracket and snap into position (Fig. 2). NB: This appliance is intended for under sink installation with the water connections pointing vertically upwards. See Section 11 if the appliance has to be removed from the wall bracket. Fig. 1 Fig. 2 9
7. Installation Pipe connection 1. The cold water inlet (blue) and hot water outlet (red) are marked on the rating plate. Connect the appropriate pipes from the tap to the water inlet and outlet accordingly. Avoid exerting any mechanical pressure on the appliance by applying a spanner on the flats of the inlet and outlet connections when tightening the pipe connectors (Fig.3). 2. Once the water connections have been made, check for any leaks and rectify as necessary. 3. In order to obtain an optimum water jet at low flow rates, always screw the jet regulator supplied with the unit onto the tap outlet. This insert fits commercially available sleeves with an M22 or M24 thread. 4. To remove the water heater, insert a wide bladed screwdriver behind the unit from above and gently lever the unit out of the wall bracket. Fig. 3 Seal Strainer Cold Water Connection (inlet, G1/2 ) Seal Hot Water Connection (outlet, G1/2 ) 10
7. Installation Electrical connection Do not switch on the electric power at this time. WARNING! To prevent damage to the appliance, the instantaneous water heater must be purged of air before using it for the first time. Purging Before connecting the electrical supply, open and close the hot water tap until the water runs smoothly and no more air emerges. NOTE! Every time the appliance is drained (e.g. after work on the plumbing system, if there is a risk of frost or following repair work), the heater must be purged in this way before reconnecting the power supply. WARNING! This appliance must be earthed. Installation must be carried out by a qualified electrician. The electrical installation including earthing and cross bonding should comply with current Australian regulations and any Local Authority requirements. IMPORTANT: The appliance must be installed according to the specification on the rating plate and the technical specifications. Ensure that the voltage marked on the appliance matches the power supply. The appliance must be permanently connected to the electrical supply. To protect the appliance, a circuit breaker must be fitted with a rating suitable for the nomi nal current of the appliance. The cross sectional area of the connection cable must be in accordance with the power rating of the appliance and the specific requirements of AS/NZS 3000. Take care to protect the wiring from damage during installation and ensure that any uninsulated wiring is not directly accessible after installation. The cable must be adequately secured. WARNING! Check that the power supply is switched off prior to electrical connection! Fig. 4 PE N L (220-240V~) MCX 3..6 L 1 Circuit diagram 1. Electronic regulator 2. Safety thermal cut-out 3. Heating element 11 3 2
8. Commissioning Commissioning 1. Close the circuit breaker to connect the electrical supply. 2. Check everything is working as it should and the water temperature is achieving the desired temperature. If not follow the guide below to correct the temperature. 9. Flow rate adjustment Adjustment of the flow rate is to be done by a Qualified Technician. Adjustments are done by turning the adjusting screw located under the appliance s cover. Removing the cover The rating plate and the adjusting screw for the flow rate is located under the cover. 1. Push the cover on the corrugated side towards the wall bracket. 2. At the rear corners press the cover down (A) until the front edge lifts (B). 3. Remove the cover by pulling forward and upwards. A A B Replacing the cover To replace the cover, reverse the process as described in the process for removing the cover above. 1. Push the cover flat towards the wall bracket under the edges of the water connections. 2. Press down the front edge of the cover and push it forward again at the rear edge until it fits. 12
9. Flow rate adjustment Adjustment of the flow rate is to be done by a Qualified Technician. Decreasing the flow rate: Turning the adjusting screw clockwise decreases the flow rate, thus making a higher outlet temperature possible. Increasing the flow rate: Turning the adjusting screw counter-clockwise increases the flow rate, thus reducing the possible outlet temperature. Direction Flow Temperature in crease (+) / decrease (-) + + 10. Removing the appliance from the wall bracket To remove the appliance from the wall bracket: 1. Insert a flat head screwdriver all the way into the lock. 2. Gently angle the screwdriver upwards by approximately 10 as shown in the image below. 3. Pull the appliance forwards by approximately 15 as shown in the image below. 4. Carefully pull the appliance upwards to complete the removal process. NB: See Section 8 on reinstalling the appliance. 13
11. Maintenance The appliance and fittings should only be cleaned with a damp cloth. Do not use abrasive or chlorine-based cleaning agents or solvents. Keep the control panel area dry. Clean the jet regulator regularly and replace as necessary. Dirt and scale deposited in the pipes and appliance will affect its function. Typical indications of this are a reduced flow rate or noisy flow. In such cases, have the appliance inspected by a qualified technician and, if necessary, have the filter in the cold-water inlet cleaned. 12. Fault finding Repairs should only be carried out by qualifi ed tradespersons familiar with electric instantaneous water heaters. All service work should be performed by an authorized Zip service technician for details of the full range of services available call Zip Service on 1800 460 222. When calling for service, please always specify the appliance model and serial number. The following table will be helpful in determining the causes of some common problems and their solutions. Problem Cause Solution Cold water at outlet Slow water fl ow rate at outlet Circuit breaker tripped Water fl ow is not suffi cient Flow controller not fi tted Water pressure not suffi cient Reset circuit breaker Increase the water fl ow to the appliance Fit the correct fl ow controller (see Section 6) or contact Zip Service Contact Zip Service Dirt in the pipes Clean fi lter, if problem persist, contact Zip Service No water at outlet Water supply is turned off Turn on water supply Appliance switches itself on and off Hot water temperature not stable during use Hot water temperature too low and/or one LED fl ashes slowly Varying water pressure / fl ow rate is too low Supply voltage varies / Water connections reversed Flow rate is too high Voltage supply is too low Clean fi lter, increase the water fl ow to the appliance. If problem persist, contact Zip Service Contact Zip Service Adjust the fl ow either at the tap, the valve or the fl ow adjustment screw. Zip Service should be contacted to adjust the fl ow adjustment screw Contact Zip Service One LED fl ashes fast and water remains cold All LEDs fl ashing fast and water is warm All LEDs fl ashing fast and water is cold LEDs turn off shortly after key press Faulty heating element Contact Zip Service Defective temperature sensor Contact Zip Service Faulty heating element Contact Zip Service Defective control panel Contact Zip Service Defective power unit Contact Zip Service Keylock function is active Deactivate Keylock, see instructions on page 8 14
13. Notes 15
Head Office Zip Heaters (Aust) Pty. Ltd. ABN: 46 000 578 727 67 Allingham Street Condell Park NSW 2200 Postal: Locked Bag 80 Bankstown 1885 Australia Website: www.zipheaters.com Facsimile: (02) 9796 3858 Telephone: (02) 9796 3100 Free Call: 1 800 638 633 As Zip policy is one of continuous product improvement, changes to specifications may be made without prior notice. Images in this booklet have been modified and may not be true representations of the finished goods. 12. Quick reference guide