DELTA Ultimate technology

Transcription

1 D Series with DELTA Ultimate technology Water Heater Instruction Manual Assembly, installation, start-up and operating instructions

2 Thank you. Many thanks for your confidence in our Rointe products. Before you start to use the low-consumption digital electrical D Series with Delta Ultimate technology water heater we recommend that you read this manual carefully in order to use the product correctly with the maximum guaranteed results.

3 INDEX OF CONTENTS 1. INTRODUCTION TECHNICAL ESPECIFICATIONS GENERAL REQUIREMENTS PLUMBING INSTALLATIONS ELECTRICAL INSTALLATION FILLING AND COMMISSIONING DESCRIPTION OF THE D SERIES WATER HEATER Description of the front panel Switch On and Off (Stand By) Select Temperature Lock the Control Panel Adjust Date and Time Main Menu ADVANCED FUNCTIONALITY FUZZY LOGIC ENERGY CONTROL RECOMMENDATIONS SERVICING AND MAINTENANCE FOULDT FINDING GUARANTEE INSTALLATION, COMMISSIONING AND SERVICE RECORD

4 1. INTRODUCTION The D Series electric water heater is a high quality unvented enamelled steel domestic hot water cylinder suitable for domestic hot water systems where the cold mains water supply has a maximum supply pressure of 0.9 MPa. Reduced performance is available at lower pressures but the units are not suitable for pressures lower than 0.15 MPa and flow rate of 20 litres per minute. Rointe offers the possibility to acquire all the necessary safety equipment to comply with legislation governing the installation of such systems. 2. TECHNICAL ESPECIFICATIONS TECHNICAL SPECIFICATIONS - 50L, 75L & 100L MODEL NOMBER DWI050DHW2 DWI075DHW2 DWI100DHW2 Storage capacity (l) Power (W) 2,400 2,400 2,400 Depth (mm) Width (mm) Overall height incl T/P valve 780 1,000 1,250 Height excl T/P valve ,150 Weight when full (kg) Cold feed/hot draw off connections (mm) Maximum water supply pressure (MPa)

5 D Series with DELTA Ultimate technology TECHNICAL SPECIFICATIONS - 50L, 75L & 100L MODEL NUMBER DWI050DHW2 DWI075DHW2 DWI100DHW2 System operating pressure (pre-set) (MPa) Expansion vessel charge pressure (MPa) Expansion relief valve set pressure (MPa) Temperature and pressure relief valve settings: Lift pressure (MPa) Lift temperature (ºC) MPa pressure reducing valve 0.6 MPa expansion relief valve INSTALLATION KIT (OPTIONAL) - 50L, 75L & 100L Expansion vessel ltr mm to 22mm Tundish Isolation valve Heat up time 15 to 65 ºC (min) Reheat time for 70% of contents (min) PERFORMANCE - 50L, 75L & 100L

6 TECHNICAL SPECIFICATIONS - 150L & 200L MODEL NUMBER DWI150DHW2 DWI200DHW2 Storage capacity (l) Power (W) 2,400 2,400 Depth (mm) Width (mm) Overall height incl T/P valve 1,060 1,220 Height excl T/P valve 960 1,120 Weight when full (kg) Cold feed/hot draw off connections (mm) Maximum water supply pressure (MPa) System operating pressure (pre-set) (MPa) Expansion vessel charge pressure (MPa) Expansion relief valve set pressure (MPa) Temperature and pressure relief valve settings: Lift pressure (MPa) Lift temperature (ºC) INSTALLATION KIT (OPTIONAL) - 150L & 200L 0.3 MPa pressure reducing valve 6

7 D Series with DELTA Ultimate technology INSTALLATION KIT (OPTIONAL) - 150L & 200L MODEL NUMBER DWI150DHW2 DWI200DHW2 0.6 MPa expansion relief valve Expansion vessel ltr mm to 22mm Tundish Isolation valve PERFORMANCE - 150L & 200L Heat up time 15 to 65 ºC (min) Reheat time for 70% of contents (min) Component Check List The D Series water heater comes with the following components. Please check through the components supplied and ensure that all parts are present: Water Heater with sheathed heating elements, digital thermostat, TFT screen and manual reset thermal cut-out T/P valve 0.7 MPa 90ºC and electrolytic fittings Installation and user manual Please contact our customer service department to find out how to acquire the safety fittings. 7

8 3. GENERAL REQUIREMENTS 3.1. The D Series domestic hot water cylinder MUST be installed by a competent person in accordance with section G3 of the current Building Regulations Important It is important that the installer reads and understands these instructions and unpacks and familiarises themselves with the equipment before commencing the installation. Failure to observe these installation instructions could invalidate the warranty Water supply The water supply to the cylinder should be potable water direct from a public mains water supply with any water treatment equipment functioning correctly. For optimum performance the unit should be fed via a 15 mm or 22 mm diameter supply pipe direct from the mains water entry point to the property with supplies a maximum pressure of 0.9 MPa. The unit can operate with a minimum supply pressure of 0.15 MPa and a flow rate of at least 20 litres per minute, but flow from the outlets will be low if several outlets are used simultaneously. The cylinder control equipment is factory set to limit the system operating pressure to 0.3 MPa. The maximum supply pressure into the pressure-reducing valve is 0.9 MPa Taps and fittings All taps and fittings incorporated in the unvented system should have a rated operating pressure of 0.7 MPa or above. 8

9 D Series with DELTA Ultimate technology 3.5. Location The unit is designed to be vertically wall mounted, indoors, in a frost-free environment. When choosing a suitable location for the cylinder, consideration should be given to the routing of the discharge pipe to a convenient point and also the availability of an adequate power supply for connecting the sheathed heating elements. The wall onto which the cylinder is mounted should be of good sound masonry construction capable of holding the weight of the cylinder when full of water (see technical specifications for weights). The position of the cylinder should be such that easy access is provided for servicing the controls and replacing the sheathed heating element should the need arise. Pipe runs should be made as short as possible and lagged to prevent heat loss. To allow for servicing and repairs the unit must be mounted at least 540 mm above any surface or object, so that access can be gained to electric connectors and the heating elements may be removed (see Fig. 1). The unit should be mounted close to an external wall so that the discharge pipe D2 (Fig. 2 - Pt. 6) can be routed to a safe visible place. The tundish should be mounted in a visible location so that it may easily be inspected. 9

10 150 mm 100 mm 100 mm H 540 mm C Figure 1 - Minimum margins for servicing and repairs. The distance between holes for the wall mounting depends on the model, see the following table for reference: Model DWI050DHW2 DWI075DHW2 DWI100DHW2 Horizontal width between holes Height between upper and lower holes 350 mm 350 mm 350 mm 340 mm 573 mm 768 mm Model DWI150DHW2 DWI200DHW2 Horizontal width between holes 350 mm 350 mm Height between upper and lower holes 595 mm 685 mm 10

11 D Series with DELTA Ultimate technology 3.6. Storage and handling If the cylinder is not being installed immediately, it should remain in its box with all pipe end protective caps in situ to prevent damage. We recommend that the cylinder be transported to its installation position with the outer box in place Pipework connections All pipework connections to the cylinder MUST be made in accordance with Figure Safety This water heater can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they are supervised or have been given instruction concerning use of the appliance in a safe way and understand the hazards involved. Cleaning and user maintenance shall not be made by children without supervision. Children must be supervised at all times to ensure that they do not play with the product. 4. PLUMBING INSTALLATION 4.1. Connections Connections MUST be made to the cylinder in accordance with Figure 1 and Figure 2. A drain cock (not supplied) (Fig. 2 - Pt. 7) should be fitted in the position shown in Figure 2 to facilitate draining of the cylinder. 11

12 4.2. Electrolytic fittings The electrolytic fittings (Fig. 2 - Pt. 11) must be fitted to the water heater. If not, the guarantee will be void. Check the T/P Relief Valve (Fig. 2 - Pt. 10) to ensure it is connected with the electrolytic fittings. If not, please contact us Cold water supply For best results, the cylinder should be fed by an uninterrupted supply pipe into the pressure reducing valve (PRV) (Fig. 2 - Pt. 3) with a maximum supply pressure of 0.9 MPa. The cylinder should not be used on any system with a supply pressure below 0.15 MPa and a flow rate of less than 20 litres per minute Temperature and pressure relief valve The temperature and pressure relief valve (T/P Valve) is supplied (Fig. 2 - Pt. 10). Once the T/P valve is fitted should not be removed from the cylinder or tampered with in any way. The valve is pre calibrated to lift at 0.7 MPa or 90 degrees centigrade and any attempt to adjust it will invalidate the warranty and could affect the safety performance of the unit. The outlet of the T/P valve should be routed in 15 mm copper piping in a downward direction alongside the water heating unit to the tundish in a frost-free environment. The outlet of the expansion relief valve must be T d into this pipe before the tundish so that any water exiting either valve can be seen draining through the tundish see figure 2 and 3. 12

13 D Series with DELTA Ultimate technology Water Flow CW to tap Hot water Outlet To tap Cold water inlet mm MIN 6 Figure 2 D Series Cylinder Connection Arrangement 100 mm MAX 13

14 Figure 2 - D Series Cylinder Connection Arrangement 1 Mains cold water supply 2 Stop cock (not supplied) 3 Pressure reducing valve * 4 Check valve * 5 Expansion relief valve * 6 Discharge pipe 22 mm 7 Drain cock (not supplied) 8 Tundish * 9 Expansion vessel * 10 T/P relief valve (included) 11 Electrolytic fittings (included) * Available in optional Installation Kit 4.5. Pressure reducing valve The pressure reducing valve (Fig. 2 - Pt. 3) should be installed in the cold water supply to the water heating unit with the arrow pointing in the direction of water flow as shown in figure 2. This can be connected to a maximum supply pressure of 0.9 MPa Expansion relief valve (Fig. 2 - Pt. 5) This must be installed between the pressure reducing valve and the water heating unit in accordance with Figure 2. No other valve should be fitted between this valve and the cylinder. The expansion relief valve contains a non return valve. 14

15 D Series with DELTA Ultimate technology 4.7. Expansion vessel A suitable expansion vessel (Fig. 2 - Pt. 9) with a pre-charge pressure of 0.15 or 0.3 MPa is available in an optional kit for fitting to all water heating units in the range. The expansion vessel MUST be fitted to the safety group. The expansion vessel MUST be positioned with the entry point at the bottom see Figure 2. IMPORTANT: Regular checks must be carried out to ensure that the expansion vessel is correctly pressurised to 0.15 or 0.3 MPa at all times. see Figure Tundish The tundish (Fig. 2 - Pt. 8) must not be positioned above or in close proximity of any electrical current carrying devices or wiring. The installation should conform with the requirements of item 4.9 below Discharge arrangement The tundish (Fig. 2 - Pt. 8) must be installed in a position so that it is clearly visible by the user. In addition, the discharge pipe (Fig. 2 - Pt. 6) from the tundish should terminate in a safe place where there is no risk to persons in the vicinity of the discharge, be of metal, and: (a) Be at least one pipe size larger than the normal outlet size of the safety device unless its total equipment hydraulic resistance exceeds that of a straight pipe 9m long, i.e. discharge pipes between 9m and 18m equivalent resistance length should be at least two sizes larger then the normal outlet size of the safety device, between 18m and 27m at least three sizes larger and 15

16 so on. Bends must be taken into account in calculating the flow resistance. Refer to the diagram, tables and worked example detailed below. Safety device (Eg: Temp relief valve) Metal discharge pipe from temperature relief valve to tundish 600mm MAX TUNDISH 300mm MIN Discharge pipe (D2) from tundish, with continuous fall. Discharge below fixed grating Fixed Grating Figure 3 - Typical discharge pipe arrangement. Trapped Gullley (b) Have a vertical section of pipe at least 300 mm long below the tundish before any elbows or bends in the pipework. (c) Be installed with a continuous fall. 16

17 D Series with DELTA Ultimate technology (d) Have discharges visible at both tundish and the final point of discharge, but where this is not possible or practically difficult, examples of acceptable discharge arrangements are: Ideally below a fixed grating and above the water seal in a trapped gully. External surfaces such as car parks, hard standings, grassed areas, etc.) are acceptable providing that where children play or otherwise come into contact with discharges, a wire cage or similar guard is positioned to prevent contact whilst maintaining visibility. Discharge at high level, e.g. into a metal hopper and metal down pipe with the end of the discharge pipe clearly visible (tundish visible or not) or onto a roof capable of withstanding high temperature discharges of water and 3 m from any plastic guttering system that would collect such discharges (tundish visible). Where a single pipe serves a number of discharges such as in blocks of flats, the number served should be limited to not more than six systems so that any installation discharging can be traced reasonably easily. The single common discharge pipe should be at least one pipe size larger than the largest individual discharge pipe to be connected. If unvented hot water storage systems are installed where discharges from safety devices may not be apparent (i.e. in dwellings occupied by blind, or disabled people), consideration should be given to the installation of an electrically operated device to warn when discharge takes place. 17

18 WARNING! The discharge will consist of scalding water and steam. Asphalt, roofing felt and non-metallic rainwater goods may be damaged by such discharges. SIZING OF COPPER DISCHARGE PIPE D2 FOR COMMON TEMPERATURE RELIEF VALVE OUTLET SIZES Valve outlet size (diameter, inches) Min size of discharge pipe D1 (mm) Min size of discharge pipe D2 from tundish (mm) Max resistance allowed, expressed as a length of straight pipe, i.e. no elbows or bends Resistance created by each elbow or bend (m) up to 9 up to 18 up to up to 9 up to 18 up to up to 9 up to 18 up to Worked example The example below is for a diameter temperature relief valve 18

19 D Series with DELTA Ultimate technology with a discharge pipe (D2) having 4 22mm elbows and a length of 7m from the tundish to the point of discharge. The maximum resistance allowed for a straight length of 22mm copper discharge pipe (D2) from a diameter temperature relief valve is: 9.0m. Subtract the resistance for 4 No 22mm elbows at 0.8m each = 3.2m. Therefore, the maximum permitted length equates to: 5.8m. 5.8m is less than the actual length of 7m, therefore, calculate the next largest size. Maximum resistance allowed for a straight length of 28mm pipe (D2) from a diameter temperature relief valve equates to: 18m. Subtract the resistance for 4 No 28mm elbows at 1.0 each = 4m. Therefore the maximum permitted length equates to 14m. As the actual length is 7m, a 28mm diameter copper pipe will be satisfactory. 5. ELECTRICAL INSTALLATION WARNING! THIS EQUIPMENT MUST BE EARTHED. All electrical wiring must be carried out by a competent person and in accordance with the current I.E.E. Wiring Regulations. All pipework should be earthed! 5.1. The sheathed heating elements Two parallel 1.2kW 230v 50Hz sheathed heating elements are pre fitted to the cylinder at the factory. They are wired in accordance with the instructions given in Figure 4. 19

20 5.2. Wiring diagram a) The power supply to the heater must be via a double pole isolator switch or controller, having contact separation of at least 3 mm, to comply with BS 6141 and must be fully earthed. In case of an electric problem, check that the wiring follows the diagram below: i. The Earth wire is connected to the terminal on the cylinder marked with the earth symbol. ii. The Live wire is connected to the high temperature cut-out terminal. iii. The Neutral wire is connected to the high temperature cut-out terminal. WARNING! DO NOT SWITCH ON THE ELECTRICITY SUPPLY UNTIL INSTRUCTED TO DO SO IN THE COMMISSIONING PROCEDURE AND ONCE THE UNIT IS FULL OF WATER. Wiring diagram - D Series water heater. COLD HOT THERMAL CUT OUT HEATING ELEMENTS EARTH CONNECTION 20

21 D Series with DELTA Ultimate technology HEATING ELEMENTS THERMAL CUT OUT EARTH CONNECTION BLUE RED RED NTC SENSOR BLUE BLACK Figure 4 - Assembly schematic. 21

22 6. FILLING AND COMMISSIONING 6.1. Check that the expansion vessel charge pressure is 0.15 or 0.3 MPa Check that all water and electric connections are correctly configured Open the main stopcock and fill the unit. Open successive hot taps starting with the tap furthest from the heater. Leave each tap open for a few moments to allow all air and debris from the system to exit. Close all of the taps Turn off the mains water supply to the cylinder and drain the system through the drain cock Refill the cylinder with hot taps open and close when water flows freely Manually lift (by rotating the knob) both the expansion relief and the temperature and pressure relief valves for a short period to remove trapped air from behind the valve seating and to check the correct function of the discharge arrangement Check all joints for leaks and rectify as necessary With the heater full of water, switch on the electricity supply. Check that the cylinder heats the water and the thermostat operates. Turn on the hot taps to check that warm water is delivered Check that while the unit is heating up, no water exits from either the expansion relief valve or the temperature and pressure relief valve. If water does exit through the valves check the expansion vessel pressure and installation Increase the temperature to maximum and allow the unit to heat and the temperature to stabilise. Check that no water discharg- 22

23 D Series with DELTA Ultimate technology es from the valves. Turn on the hot taps to drain the heater of hot water. Set the thermostat to the required temperature and allow the heater to reheat ready for use. 7. DESCRIPTION OF THE D SERIES WATER HEATER 23

24 7.1. Description of the front panel ICON INDICATION On / Off - Accept Decrease temperature - Move left Increase temperature - Move right Access / Return to Menu - Move up Access programming Menu - Move down TFT Display

25 D Series with DELTA Ultimate technology NUM. INDICATION 1 Hours programmed - AUTO 2 Days of the week 3 Time 4 Selected temperature 5 Locking the control panel 6 Manual / Automatic / Pilot wire functions 7 Comfort / Economy / Anti-frost modes 8 Net connection status 9 Heating Element in operation 10 Consumption behaviour indicator ICON DESCRIPTION Consumption indicator green / yellow / red Water heater heating element on Connected to the router and server - sending and receiving Connected to the router and server - maximum internet signal Connected to the router and server - minimum internet signal Connected to router but not connected to server nor internet Not connected to server. Not connected to the router Comfort Mode activated Eco mode activated Anti-frost mode activated Automatic mode activated 25

26 Manual mode activated Pilot Wire Control mode activated Not available in UK. Only upon demand Automatic function activated in USER mode Manual function activated in USER mode Pilot wire control function on when USER function is working. Not available in UK. Only upon demand Locked through radiator control panel. Remote lock. Locked through IR remote control or Rointe Connect App 7.2 Switch On and Off (Stand-by) The D Series with DELTA Ultimate technology water heater is switched on or off using the button. The following welcome appears on the TFT screen when the water heater is switched on. DELTA Ultimate The main temperature screen will appear after 5 seconds. If you press the button again when the water heater is switched on it will revert to stand-by mode and the words Stand-By will appear. 5 seconds later and the Rointe logo will appear. 26

27 D Series with DELTA Ultimate technology 7.3 Temperature selection You can change the desired temperature using the keys or. If the temperature of the room is less than is desired then the water heater will begin to heat up and the symbol will appear. 7.4 Locking the control panel You can lock the product from the actual control panel of the water heater or remotely via the Rointe Connect App or the Air Control remote control. On the product control panel you can lock the keypad by pressing and holding down the and buttons at the same time for 3 seconds. The locked icon will appear. When you press any button the image on the right will appear on the screen. You can unlock the product again by pressing and holding down the and buttons for 3 seconds. If we lock the product via the application or remote control then the remote locked icon will appear on the screen. When you press any button on the water heater control panel, the image on the right will appear on the screen. If the product is locked in this way, you can only unlock the water heater via the Rointe Connect app or the Air Control remote control. 27

28 7.5 Adjusting time and date It is possible to change the time on the water heater from the control panel. However it is better to wait for the automatic synchronization once the product has been paired with the Rointe Connect app and the product is connected to the E-Life technology servers. Here we explain how to change the time from the water heater control panel. Press the menu button to access the main menu. Select the sub-menu by using the and buttons then press to access. In the configuration sub-menu, use the and buttons to select the clock then press to access. By pressing the button, the hours, minutes and days will flash depending on the number of times the button is pressed (1 for hours, 2 for minutes and 3 for the day of the week). We can change any of these by pressing the or buttons. To confirm, press the button. To exit the time/day mode wait 30 seconds or press the after selecting the day of the week. button 28

29 D Series with DELTA Ultimate technology 7.6 Main menu Press the button to access the main menu of your D Series with DELTA Ultimate technology water heater. You can move between the different options on the menu by pressing the and buttons. The sub-menu which you have selected will be highlighted with a frame. The following icons allow you to access different sub-menus which we will now explain: Configuration Sub-Menu Energy Sub-Menu Balance Function Programming Sub-Menu Configuration Sub-menu The configuration sub-menu consists of 4 technical parameters of the product. To access this menu, press on the main menu screen. The screen on the right will appear and we can move between the various options of the sub-menu by using the and buttons. We can access the various sub-menus, which we can now explain, using the following icons: Screen backlight Internet settings Language Adjust day / time 29

30 Screen backlight function This function allows you to change the brightness of the screen in the STAND-BY and BACKLIGHT (ON) modes. We can change between the 2 modes by using the and buttons. We can increase or decrease the brightness by using the and buttons. The cursor shows the intensity of the light within the range. Press the button to confirm and to exit. Internet Settings This option prepares the product to communicate with a special network enabling it to be paired. Press the internet settings option to access this mode. On the next screen the name of the WIFI network (NET) and password (PIN) which have been created will appear. Exit the PAIRING mode by pressing the button which will allow us to return to the main screen. ROW 30

31 D Series with DELTA Ultimate technology Pairing your product with the Rointe Connect App In order to pair your Rointe D Series with DELTA Ultimate technology product(s) with your local WI-FI signal, please follow the instructions in the attached document Delta Ultimate technology. Quick set-up guide. Language You can select the language you wish using this function. Select the language you wish by pressing the and buttons. Press the button to confirm the language highlighted. LANGUAGE ENGLISH FRANÇAIS ESPAÑOL PORTUGUÊS Adjust date / time This function allows you to change the hour, minutes and day of the week on the product control panel. To adjust the time/date please revert to section

32 7.6.2 Energy Sub-menu The Energy Sub-menu allows access to the functions relating to the energy management of the product. Select the icon from the main menu by using the and buttons. Press to access this screen. The following icons allow you to access distinct sub-menus: Water heating progress Anti legionnaire s disease Effective power function Information Water heating progress We can see the progress of the water heating process towards the userestablished target temperature. In this image, 100% of the water contained in the water heater is at the user-defined target temperature. When the water in the tank is not yet at the user-defined target temperature indicated on the TFT screen, a percentage value is displayed. This represents the heating progress towards this target temperature. 32

33 D Series with DELTA Ultimate technology Anti legionnaire s disease The water heater is automatically set to over 60ºC for at least one hour once a week. Whilst this mode is active, you will see the following screen. Within the legionella function you can choose the time period in days for the activation of the legionella function. (By default this period is 7 days) ANTILEGIONAIRE S DISEASE FUNCTION PERIOD (DAYS) 7 Effective Power Function This function shows the working time and total time that the product has been connected on the main screen. The nominal and effective power will appear on the screen after 6 seconds without pushing any buttons The effective power is the actual consumption of our product during the total time it is switched on. 33

34 Information This option shows the software version, the release date and the nominal power of the product. Select the icon by using the and buttons, then press the button to confirm. To exit from the information screen, press. This option shows the status of the WIFI connection, the IP address, subnet mask and connection port. Select the icon by using the and buttons then press the button to confirm. To exit from the information screen, press. POWER 2400W WIFI STATUS dhcp:assigned IP, NM, GW: xxx.xxx.x.xxx xxx.xxx.xxx.x xxx.xxx.x.xxx This option shows the MAC and RSSi address and signal strength which is measured in dbm. Select the icon by using the and buttons then press the button to confirm. To exit from the information screen, press. WIFI STATUS MAC: 0 :50:93 C4:03:F6 RSSI:-70 34

35 D Series with DELTA Ultimate technology Balance Sub-menu The balance sub-menu forces the water heater to work in manual mode at a constant 19ºC. Select the icon from the main menu using the and buttons. Press the button to confirm. By pressing this button the water heater will return to the main screen with a set temperature of 55ºC and the Manual icon will appear Programming sub-menu In this section we will explain the aspects of the water heater in relation to how they work in their various functions and modes. The programming sub-menu provides access to the functions related to programming the product. Select the icon from the main menu. The icons shown below allow access to the distinct sub-menus which we will describe later: / Manual / Automatic Function Start Programming User Function Pilot Wire Mode (Only upon demand) 35

36 What are the manual, automatic and pilot wire modes? Manual Mode This mode allows you to change between comfort, eco and anti-frost modes changing the temperature as described in section 7.3. Automatic Mode This mode activates the programming which has been set in the water heater. Pilot Wire Mode Not available in UK. Only upon demand This mode allows you to control the water heater via a central control. What are the comfort, Eco and Anti-Frost modes? These modes represent different ranges of temperatures available within the products. Icon Mode Temperature Range Comfort From 55ºC to 73ºC Eco From 40ºC to 54.5ºC Anti-Frost 7ºC 36

37 D Series with DELTA Ultimate technology Manual/Automatic Function Press the button to change between the Manual and Automatic modes. On the main screen the symbol will appear in Automatic mode and the symbol will appear in Manual mode. The Automatic Mode will activate the programming which you have already set in the product. Start Programming To start programming, use the and buttons to choose the icon and confirm by pressing the button. 1 Select the COMFORT temperature Use the and keys to select the COMFORT temperature, between 55ºC and 73ºC. The symbol and the temperature will flash. Once selected, press to confirm. 37

38 2 Select the ECO temperature Continue and select the ECO temperature, between 40ºC and 54.5ºC. The symbol and the temperature will flash. Press to confirm. 3 Select DAYS After pressing the button, the days of the week will flash showing the days as Day1, Day 2 etc. We can use the and buttons to go forwards or backwards through the days. Press the button to select the day or days which you wish to program with the same programming. 4 Asign mode to each HOUR To access the hourly programming of the chosen days press until you pass day number 7. You can move back and forward between the hours by using the and buttons. The hours are shown as 0h, 1h, 2h 12h By using the button you can chose between the COMFORT, ECO and OFF modes. Once the hours of the selected days have been programmed, press or wait 30 seconds without touching any button. You can program day by day or you can program several days at the same time. 38

39 D Series with DELTA Ultimate technology User Function To access the User Function, use the and buttons to select the icon and confirm by pressing. USER Function This allows the user to establish a limited working temperature range (maximum and minimum temperature). By way of a 4 digit code you can access a menu where you can activate or deactivate this function, change the password and fix a maximum and minimum temperature range for the product When the product is working with this function one of the following symbols will appear on the main screen depending on whether it is in Automatic mode, Manual mode or Pilot Wire mode. 39

40 Enter the PIN to access. The default PIN number is Select the numbers by using the and buttons and confirm by pressing. Press OK to access. If the pin number is wrong then the words INCORRECT PIN will appear on the screen. INSERT PIN CANCEL 0 OK INCORRECT PIN When the PIN number has been entered correctly the main screen of the basic configuration will appear. The following icons allow access to the various sub-menus which we will now describe: Activate/ Deactivate Function Change Password Maximum Temperature Limit Minimum Temperature Limit 40

41 D Series with DELTA Ultimate technology Activate function Allows you to activate or deactivate the USER function. Select ON to activate or OFF to deactivate the function by using the and buttons. Once the chosen mode has been selected, press to select and exit. USER FUNCTION ON OFF The icon or will appear at the top of the screen depending whether it is on Automatic mode or Manual mode. If the product is in Pilot Wire Mode then the icon will appear. Change the PIN code NEW PIN You can change the access PIN code for this feature. Use the,, and buttons. To introduce the current PIN code. To confirm select OK. The screen will show PIN CHANGED CANCEL 0 OK PIN CHANGED 41

42 Maximum temperature This allows you to set the maximum working temperature of the water heater. Using the and buttons you can increase or reduce the temperature between 55ºC and 73ºC. Press to exit once the desired temperature has been chosen. UPPER TEMPERATURE LIMIT 65.0ºC Minimum temperature This allows you to set the minimum working temperature of the water heater. Using the and buttons you can increase or reduce the temperature between 40ºC and 54.5ºC. Press to exit once the desired temperature has been chosen. LOWER TEMPERATURE LIMIT 45.0ºC To exit, press the button or wait 30 seconds. Pilot Wire Function Not available in UK. Only upon demand Activate or deactivate the Pilot Wire Control function. Select ON to activate or OFF to deactivate by using the keys and. Press to confirm and exit. The symbol will appear on the screen. PILOT WIRE ON OFF 42

43 D Series with DELTA Ultimate technology WARNING! The Pilot Wire function only allows you to control your heating via the pilot wire programmer not via the Rointe Connect App. 8. ADVANCED FUNCTIONALITY 8.1. Anti Legionnaire s Disease Our D Series is designed with safety in mind, and all the anti legionnaires disease regulations are complied with. The water heater is automatically set to over 60ºC for at least one hour once a week. As indicated at the section yoy can choose the time period in days for the activation of the legionella function.whilst this mode is active, you will see the following screen: 8.2. Water Heating Progress As indicated at the section we can see the progress of the water heating process towards the user-established target temperature. In this image, 100% of the water contained in the water heater is at the user-defined target temperature. 43

44 When the water in the tank is not yet at the userdefined target temperature indicated on the TFT screen, a percentage value is displayed. This represents the heating progress towards this target temperature. 9. FUZZY LOGIC ENERGY CONTROL This product includes Fuzzy Logic Energy Control technology to efficiently manage the energy consumption of the water heater. Fuzzy Logic Energy Control bases its operation on thousands of micropulses being sent to the heating elements to keep a stable water temperature with a consumption as low as posible. When the symbol replaces the, then the Optimizer Energy Plus technology is working. 10. RECOMMENDATIONS When a hot tap is turned on there may be a short surge of water. This is quite normal with unvented systems and does not mean there is a fault. 44

45 D Series with DELTA Ultimate technology When you first fill a basin the water may sometimes appear milky. This is due to very tiny air bubbles in the water which will clear very quickly If water is seen dripping through the tundish at any time switch off the electricity supply immediately and call the installer or the Rointe customer service department on the number listed at the end of this manual. 11. SERVICING AND MAINTENANCE Servicing and maintenance must only be carried out by a competent unvented hot water heater installer or by Rointe authorised personnel Before any work whatsoever is carried out on the installation, it MUST first be isolated from the mains electricity supply Only use spare parts authorised by Rointe. The use of other parts will invalidate the warranty Drain the cylinder When draining the cylinder, always switch off the water heater. Turn off the water supply at the stopcock (see Figure 2). Connect a hosepipe to the drain cock (see Figure 2) and route it to a convenient gully. Open the drain cock and all hot taps that are served by the cylinder. The cylinder may take several minutes to empty completely The magnesium anode must be checked at least once a year, and must be replaced if worn or defective Remove the cartridge from the pressure reducing valve. Check the strainer and if necessary remove any debris from in front of it. Replace the cartridge. 45

46 11.7. Check the charge pressure in the expansion vessel and top up as necessary. The charge pressure should be 0.15 or 0.3 MPa Close the drain cock, disconnect the hose, refit the heating element and close all hot water taps before reopening the stopcock. Allow the cylinder time to fill whilst checking for any leaks. Release any air from the system by opening each hot water tap individually, starting with the one furthest from the cylinder Manually lift the expansion relief and temperature and pressure relief valve one at a time, every 12 months (more frequently in hard water areas) to prevent debris from building up behind the valve seat. Whilst carrying out this operation, check that the discharge to waste is unobstructed. Check that each valve seals correctly when released. As the valves are pre-calibrated, they require no further maintenance Finally, when the heater is full of water switch on the mains electricity supply to the water heater. As the system heats up, check again for any leaks and rectify as necessary In the event of the manual reset cut-out operating, isolate the heater from the mains supply, investigate and identify the cause of the operation of this cut-out, rectify the fault before manually resetting the cut-out via the reset button on the cut-out. Finally switch the mains electricity supply back on. 46

47 D Series with DELTA Ultimate technology 12. FAULT FINDING Notice: Disconnect electrical supply before removing any electrical equipment cover. FAULT POSSIBLE CAUSE REMEDY No hot water Water from hot taps is cold 1. Mains supply off. 2. Strainer in pressure reducing valve blocked. 3. Pressure reducing valve incorrectly fitted. 1. Programmer if fitted is not switched on. 2. High limit thermostat has tripped. 1. Open stopcock. 2. Turn water supply off, remove strainer and clean. 3. Re-fit correctly. 1. Switch on the programmer. 2. Check and re-set. Intermittent water discharge through tundish on warm-up 1. Expansion vessel has lost its charge pressure. 1. Turn off stopcock, open a hot water tap, check vessel charge pressure and recharge Continuous water discharge 1. Pressure reducing valve not working. 2. Expansion relief valve not seating correctly. 3. Temperature and pressure relief valve not seating correctly. 1. Check pressure from pressure reducing valve if greater than 0.3 MPa replace cartridge. 2. Manually lift the valve once or twice to clear any debris from the seat otherwise replace valve. 47

48 13. GUARANTEE Rointe guarantee all electrical and mechanical controls supplied with the cylinder for a period of 2 years from the date of purchase provided that they have been installed for their intended use by a competent person and have not been modified in any way In addition Rointe also guarantees the hot water cylinder for a period of 5 years from the date of purchase against faulty material or manufacture provided that: a) It has been installed by a competent person in accordance with this installation manual and all current regulations and codes of practice at the time of installation. b) It has been used solely for the purpose of heating potable water that complies with current (at the time of installation) UK standards and is not fed with water from a private source. c) It has not been modified in any way. d) It has not been subjected to excessive pressure or electrolytic action from dissimilar materials, or attack from any salt deposits. e) It has been installed indoors in a frost-free environment. f) A copy of the certificate of guarantee (page 55) is completed and returned to Rointe within 90 days of installation. g) Electrolytic fittings must be properly installed. 48

49 D Series with DELTA Ultimate technology h) Maintenance must be carried out every year to retain the guarantee EXCEPTIONS: The following cases state exceptions from the present guaranteed cover, for which all repairs will be charged to the user: Damage caused deliberately, through negligence, or wrong use of the water heater by the client or third parties. The failures produced by chance causes, strong forces (atmospheric or geologic phenomena) and generally the failures caused by elements that don t belong to the heater. Corrosion caused by direct exposure to salt water is excluded from the guarantee. When the product is installed no more than 200m from the coast the guarantee for damages caused by corrosion the period will be reduced by 50%. Faults that result from an incorrect installation or lack of maintenance of the heater, made by a professional without the necessary qualification. Guidance can be found within the recommendations for installation and use as found in the installation manual and in the instruction booklet. Aesthetic wear and tear produced by use, the cleaning of limescale accumulation, revision and substitution of the magnesium anode as well as other operations of maintenance of the heater. All heaters must be installed in a way that allows access for our technicians. The user is responsiblefor any costs and organization required to provide access to the heaters for their repair and / or substitution. 49

50 VERY IMPORTANT: in order to be covered by this guarantee, it is essential that the user can prove to the guarantor s Official Technical Assistance Service the date of purchase by means of the invoice from the seller of the heater, the serial number, the reference number and the certificate of guarantee. In the case of heaters supplied in newly built premises, it is sufficient to prove the date of availability of the heater to the user. In the event of any problems, you can contact ROINTE on its TECHNICAL ASSISTANCE HELPLINE or us at support@rointe.co.uk Cancellation of the present guarantee This guarantee will be annulled and therefore without any effect, if the heater has been manipulated, modified or repaired by unauthorized people. It will also be annulled if the heater is not correctly installed with security fittings and the suitable protective sockets. This warranty is not transferrable. This warranty does not include claims due to frost or limescale damage. Proof of purchase will be required for any claim. This guarantee does not affect your statutory rights. For help about the D Series please contact Rointe Technical Support: Tel: support@rointe.co.uk 50

51 D Series with DELTA Ultimate technology DIMENSIONS AND TECHNICAL CHARACTERISTICS REFERENCE DWI050DHW2 DWI075DHW2 DWI100DHW2 DWI150DHW2 DWI200DHW2 CAPACITY (L) POWER (W) 230 V~ 2,400 2,400 2,400 2,400 2,400 HEATING ELEMENTS 2 x 1,200 W 2 x 1,200 W 2 x 1,200 W 2 x 1,200 W 2 x 1,200 W THERMAL LOSS kw in 24h. at 65 C 1,1 1,2 1,4 1,9 2,3 PLACEMENT Vertical Vertical Vertical Vertical Vertical WATER INTAKE (inches) 1/2 1/2 1/2 3/4" 3/4" EMPTY WEIGHT (kg) DIMENSIONS (mm) A , ,070 B , ,120 C 780 1,000 1,250 1,060 1,220 D E F G H I J K L EAN CODE E L D J C B A H I K G F 51

52 European Directive (WEEE) 2012/19/UE Under the European Directive 2012/19/UE on waste electrical and electronic equipment (WEEE), the apparatus cannot be disposed in the usual council bins and containers. They must be separated to optimize the recovery and recycling of all of the components and materials and reducing the impact to human health and the environment. The symbol of the container crossed out over a horizontal line is marked on all of ROINTE s products to remind the consumer of the obligation to separate them on disposal.the consumer should contact the local authority or original point of sale to learn more about the correct disposal of this product. 52

53 D Series with DELTA Ultimate technology 14. INSTALLATION, COMMISSIONING AND SERVICE RECORD NAME CUSTOMER DETAILS ADDRESS TEL No. COMPANY NAME ADDRESS TEL No. INSTALLER NAME INSTALLER DETAILS DATE REGISTRATION No. COMMISSIONING ENGINEER (IF DIFFERENT) COMPANY NAME DATE ADDRESS TEL No. INSTALLER NAME REGISTRATION No. MODEL CAPACITY (litres) CYLINDER DETAILS SERIAL NO. 53

54 SERVICE RECORD DETAILS Before completing the appropriate Service Interval Record below, please ensure you have carried out the service as described in the manufacturer s instructions and in compliance with all relevant codes of practice. It is recommended that your hot water system is serviced regularly and that your service engineer completes the appropriate Service Interval Record below. SERVICE 1 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE SERVICE 2 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE SERVICE 3 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE SERVICE 4 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE SERVICE 5 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE SERVICE 6 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE SERVICE 7 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE SERVICE 8 DATE: SERVICE ENGINEER TEL NO. REGISTRATION NO. SIGNATURE 54

55 Cut along the dotted line CERTIFICATE OF GUARANTEE In the event of detecting any defect in the product within the period of guarantee, you must fill in the following Guarantee Certificate and send it to us stamped together with a copy of the sales invoice via to support@rointe.co.uk or to the following postal address: INDUSTRIAS ROYAL TERMIC, S.L., C/E, Parcela 43, Santomera (Murcia, Spain). For new constructions, it is essential that you attach the Certificate of First Occupation. CERTIFICATE OF GUARANTEE REFERENCE: Nº SERIES: USER: HOME ADDRESS: TOWN: POSTCODE: PROVINCE: COUNTRY: TELEPHONE: SELLER S STAMP: PURCHASE DATE: NB: This certificate of Guarantee must be filled in out in full in order to obtain guarantee rights. The date of purchase and seller s stamp are compulsory. Please, attach a copy of your sales invoices. In addition, for new constructions include the Certificate of First Occupation.

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60 ROINTE UK Catalyst House 720 Centennial Court, Centennial Park Elstree, Herts, WD6 3SY T F Technical Support T MDTUK16V1