1 - INSTALLATION & CONFIGURATION 1.1 - Quick reference Guide 1. It is recommended that the boiler be connected to a 10 hour or similar off-peak tariff that provides some daytime off-peak hours. 2. Where the off-peak tariff is restricted a changeover relay should be used to switch power to the boiler when the off-peak supply is not available. 3. Fill the system with water prior to turning on the electrical supply to the boiler. 4. Ensure the system is flushed thoroughly before letting any air/water exit through the pressure relief valve (dirt can prevent the valve closing). 5. Check the system is full by turning the pressure relief valve cap, and check water exits correctly through the discharge pipe. 6. A manual pressure gauge should be used to check the system pressure when cold. The pressure should be set between 1 bar & 1.5 bar. Note all air should be removed from the system before measuring the system pressure. 6a Alternative with the electric supply off, the yellow bridge between terminals 10 and 11 may be removed before filling the system for the final time ( this prevents the elements turning on) and the boiler pressure gauge used to set the cold system pressure. Once set to 1-1.5bar, the boiler should be switched off and the yellow bridge returned to its position between terminals 10 & 11. POWERSTREAM Ascari -p. 3 -...
1. SPACE HEATING ONLY (recommended)-direct room thermostat Connection • The no-volt contacts of the room thermostat should be connected to terminals 1 and 2 of the boiler. • Menu option 4 should be set to 01 to allow the boiler to be controlled from the room thermostat. OPERATING WITH HOT WATER CYLINDER Redring recommend to use a direct electric unvented cylinder for the production and storage of the hot water as this is cheaper than an indirect cylinder, requires less plumbing (piping and valves) and is more thermally efficient. Installation Configuration –Heating & Hot Water Room thermostat Hot water...
1.3 - Boiler (serial numbers of 0500151 and over) Two options are available: Option 1 - Operating from a Switched Live Switched Live 1. The switched live from the 10-way connector block should be connected to terminal 25, which is located beside the relay located in top right of the boiler. 2. In the set-up menu, set option 04 to 1 3. Auto-adaptability (option 6 of the set-up menu) should be turned off. 4. The minimum central heating circuit temperature (option 3 of the set-up menu) should be selected to provide central heating and hot water safely. 5. The boiler should be set to operate in winter mode (press and hold the radiator key until the snowflake indicator illuminates). 6. All other options in the set-up menu should be set to the Menu options listed below. Option 2 – Direct Cylinder Thermostat & Room thermostat connections • The brown wires should be removed from terminals 1 and 2 and be placed into terminals 5 and 6 respectively. • The room thermostat no-volt Normally Open contacts of the room thermostat should be connected between terminals 1 and 2 of the boiler. In the set-up menu, set option 04 to 1. • The cylinder thermostat normally open contact (240V) should be connected to terminal 25, which is located beside the relay located in top right of the boiler. • In the set-up menu, set option 12 to 01 set option 13 to 00 POWERSTREAM Ascari -p.
1.4 - Menu Options The set-up menu should be configured as follows, some of these parameters will be modified by instructions in the previous sections. Option Setting or as required 21-80 or as required 21 C- maximum temperature set if operating from a switched live or if a room thermostat installed 0 if not. (Never select 2) if option 4 set to 1 recommended (unless instructed otherwise) 0 mandatory min or user defined 1-6 minutes delay in switching elements.
1.5 - Summer / Winter Mode The right-hand snow flake symbol should be illuminated indicating winter mode. If the sunshine symbol is illuminated, select winter mode by pressure and holding the radiator button on the boiler for 3 seconds. In Summer mode the heating circuit is switched off but hot water, if installed, will be still be heated. 1.6 - Underfloor Heating • For underfloor heating the 60 C internal temperature cut-out should be selected. • Where underfloor and hot water cylinder are used in the same heating circuit it is necessary to use the C temperature cut-out in the boiler and include a separate 60 C thermal cut-out for the underfloor heating circuit. POWERSTREAM Ascari -p. 7 -...
• Pump protection - once a day operation when system is off • Pump overrun facility • 4-stage stepped turn on/off • Weekly alternative switch start-up for prolonged life • Automatic water temperature variation for 50% on-off cycles (with room thermostat) • Switch operation counter – monitors switch usage • System pressure display Water Heating It is recommended that the boiler be used for central heating purposes only and hot water be stored and heated by a direct electric hot water cylinder. This allows hot water to be heated over night on an off-peak tariff and reduces heat losses between the boiler and the cylinder. 2.1 - Introduction The Redring Powerstream Ascari boiler is an all electric domestic central heating boiler suitable for use on a 230V 52A 50Hz supply. The unit is easy to install and requires no flue, making it ideal for apartments or properties in conservation areas. The unit is supplied ready for operation as a 12kW 230V (13kW 240V) single phase boiler and will automatically modulate down to 10, 8 and 6kW. The maximum output power may also be manually limited to operate at maximum power levels of 10, 8 , 6 or 4 kW with the boiler proportionally modulating to lower power levels. Finished in a clean white case and with dimensions of 620mm height x 405mm width, the boiler is suitable for installation in a kitchen area. With thermal cut out selectable at 60 C or 100 C the boiler is suitable for standard wet radiator systems or underfloor heating. There are no specific ventilation requirements associated with the operation of this boiler, however it is recommended that the room is dry and well ventilated.
• All wiring should conform to the regulations in force at the time. The appliance is approved to a protection rating of IPX1. Therefore if the appliance is to be installed in a room containing a bath or a shower, any electrical switch or control utilising mains electricity must be so situated that it cannot be touched by a person using the bath or shower. Attention is drawn to the requirements of the current BS 7671 (I.E.E Wiring Regulations) and in Scotland the electrical provisions of the Building Regulations applicable in Scotland. • Complete all plumbing work before connecting the boiler to the electricity supply. • This appliance must be earthed! • The boiler should be permanently connected to the electricity supply, direct from a 63A fused supply on the consumer unit via a double pole linked switch with minimum contact gap of 3mm. No other appliances should be powered from this supply. • The expansion vessel is pre-charged to 1 bar (0.1MPa). During the installation process and before operating the boiler this should be checked using a suitable pressure gauge. • A 3 bar (0.3MPa) pressure relief device is incorporated within the product, the cold system pressure should not exceed 1.5bar (0.15MPa). • When using with radiators fitted with TRV controls the heating system must have a bypass radiator fitted capable of circulating water at 350litres/hour. • The system should be flushed prior to connecting the boiler to remove all particles from the pipework. Do not use the fitted pressure relief valve to flush the system as particles trapped in the valve will cause incorrect valve operation. • The outlet of the pressure relief valve should be left open to the atmosphere, any connection to the outlet pipe must be of a minimum diameter of 15mm, should fall continuously and should terminate so that water/steam may visibly and safely discharge. Should any water or steam be seen to be exiting from this outlet the boiler electricity supply should be switched off and the Redring customer service centre contacted. POWERSTREAM Ascari -p. 10 -...
• A drain cock should be installed at the lowest point in the heating system to allow the water in the heating system to be drained as fully as possible. • While the boiler and heating system may be filled from the cold mains water supply, the boiler must be isolated from the cold mains water supply by a suitable break in the supply pipe during normal operation. • Filling Loop- this boiler is not fitted with a filling loop. Any filling loop being fitted should comply with the water supply (water fittings) regulations 1999 Section G24.1 and G24.2. A filling loop should be fitted at some point to allow the CH system to be filled. • The boiler must be installed in an upright position away from nearby objects (see installation section for clearances) in a clean, dry, frost free place. 2.3 - Technical Specification ELECTRICAL Supply 12 kW@ 230V 52A 50Hz 13 kW@ 240V 54A 50Hz Maximum Power Output 12 kW manually convertible to 10, 8, 6 or 4kW Modulation Automatic three or four stage reduction in 2kW steps 12 kW - 10-8-6 10 kW - 8-6-4 8 kW - 6-4-2 6 kW - 4-2 Fuse requirements 63Amp Number and cross-section 3 x 16² (Phase + Neutral + Earth)
MecHanical Weight 38kg Dimensions 620mm h x 405mm w x 280mm d Rating IPX1 Storage capacity 5 litres Connections 1"( 26/34) female Heat Exchanger Cast Iron Elements 2 heaters comprising 3 x 2kW incoloy elements Expansion Vessel 8 litres Pump 3-speed manually selectable Thermal cut-outs 2 units manually selectable 60 C or 100 2.4 - Preparation 2.4.1 - Opening case The boiler is opened by unscrewing the bottom two bolts a couple of turns (they do not need to be removed completely). The front cover is then be pulled out from the bottom and lifted off the two top pins. Switch off the electricity supply to the boiler before opening the internal cover.
2.4.2 - Electrical Compartment With the cover removed access to the electrical connections is achieved by undoing the screw of the electric box. Once opened access is gained to the electrical connectors, for easy installation. 2.4.3 - Selecting Thermal cut-out The thermal cut-outs are situated at the top of the boiler and may be selected during the installation by re-routing the electrical connections. The boiler is factory set with the 100 C cut-out selected for use with radiator heating systems. If the Boiler is to be used with underfloor heating remove the connectors from the 100 C sensor and connect to the 60 C sensor ensuring there is a good connection. Connector 60°C 100°C Thermal cut-out selection (100°C for radiators, 60°C for underfloor) Where both underfloor and hot water cylinder are used, it is necessary to use the 100°C temperature cut-out in the boiler and include a separate 60°C thermal cut-out for the underfloor heating circuit. POWERSTREAM Ascari -p. 13 -...
2.5 - Installation Requirements 2.5.1 - Location • The boiler must be located at least 300mm above any object to allow the elements to be removed. At least 100mm is required at the top of the boiler to allow for connection of pipework. • 10mm is required at the sides of the unit. • The boiler must be mounted on an internal solid masonry wall capable of withstanding the weight of the product when full of water. • Consideration should be given to the routing of electric cables to the product and the wiring to a thermostat (if used). • The location must be free from frost and excessive moisture.
2.6.2 - Plumbing 2.6.2.1 - Radiators / Underfloor Room thermostat Air bleeders Service valves Radiators Pump Under Floor safety limiter if used with hot water cylinder Expansion Relief Valve Drain Expansion vessel Underfloor heating • Install the heating system bringing the flow and returns to the boiler location. • The system should be flushed prior to connecting the boiler to remove all particles from the pipework. Do not use the fitted pressure relief valve to flush the system as particles trapped in the valve will cause incorrect valve operation. •...
• A filling loop must be installed that isolates from the cold mains water supply from the heating system and complies with the current building and water regulations in force at the time. • The boiler incorporates an 8-litre expansion vessel which is suitable for heating systems as follows: 2.6.3 - Filling loop This boiler is not fitted with a filling loop. Any filling loop being fitted should comply with the water supply (water fittings) regulations 1999 Section G24.1 and G24.2. A filling loop should be fitted at some point to allow the CH system to be filled. Two types are shown below: METHOD B METHOD A Temporary Flexible Hose Connection To be removed immediately after Cistern & filling Overflow Stop Mains Stop Stop valve water valve valve supply Mains water Double...
2.7 - Electrical • Wiring external to the appliance must be in accordance with the current I.E.E Wiring regulations (BS 7671) for electrical installation and any local regulations, which apply. • With the boiler plumbed in, the electrical connections can be made to the boiler. • This appliance must be earthed! • The Ascari boiler comes with cage-clamp connectors. These are operated using a 2.5mm x 0.4mm blade screwdriver for accessory terminals and 3.5mm x 0.5mm blade screwdriver for power terminals. • The boiler should be permanently connected to the electricity supply, direct from a 63A fused supply on the consumer unit via a double pole linked switch with minimum contact gap of 3mm. No other appliances should be powered from this supply. • The number and cross-section of connector is mandatory 3 x 16² (phase + neutral + earth) (see § 2.15 "connection to the electricity supply") • To connect a wire, insert the blade of the screwdriver into the opening located just above or below the central mark of the terminal block and pivot the blade towards the centre. The wire may then be inserted into the cage and the screwdriver blade removed (see § 2.14 "Power terminal"). • ROOM THERMOSTAT - The no voltage connections of a room thermostat may be connected to terminals 1 (common contact) and 2 (Normally Open contact) of the boiler (please check compatibility with thermostat manufacturers installation instructions), routing the cable through the smaller cable entry points. If using a non-programmable room thermostat it is recommended that the no-voltage switched contacts of a separate timer / programmer be connect in series with the room thermostat to terminal 2 of the boiler. WARNING- a switched live must not be connected to the boiler terminals. • If used the cylinder thermostat normally open contact (240V) should be connected to terminal 25 of the boiler’s electrical connectors ( see section Boiler electrical connections) •...
NOTE: British Standard BS7593: 1992 stresses the importance of cleansing and flushing of the system to ensure it continues to run efficiently with the minimum of maintenance necessary. Redring fully supports this professional approach and recommends that the system is cleansed with an effective chemical cleanser and protected long term with a suitable inhibitor.
• Refill the system from the filling loop, to a pressure between 1-1.5bar (0.1-0.15MPa) and operate the pressure relief valve manually to check that water runs away correctly, and that the valve closes correctly. • When boiler is in stand by mode, help the air bleeding of installation by starting a forced circulation for 2 minutes (press • Top up the system to 1.0bar (0.1MPa). • Disconnect the system from the filling loop. • Important! Check tightness of all internal electrical connections. • Check that all covers etc. have been replaced. Turn on the electricity supply to the boiler and allow the unit to do its self diagnosis. Refer to § 2.24 if a fault is displayed. • Use ethylene glycol only with incorporated corrosion inhibitor. Glycol ratia must be under 10%. 2.9 - Boiler configuration Once the boiler has initialised the feature options can be selected (see quick reference guide for options): Press – and + together for 3 seconds to enter the selection menu. With reference to § 2.21 the top display should show a flashing 01. Use the +/- keys to select the parameter to be changed and the tap or radiator keys to change...
Man for 3 seconds to return to normal operating mode. 2.10 - Pump Speed The boiler is factory set at pump speed 3, for lower pump speeds the selector in the centre of the pump may be turned to 1 or 2 using a large flat bladed screwdriver. 2.11 - Troubleshooting The boiler has many selectable options. Please ensure the correct selections are made for the type of installation you have made. If you have selected the use of a room thermostat, or hot water cylinder, the boiler will not operate until these devices are connected. • The boiler indicates a boiler fault by flashing in front of the symbol "°C", and in front of the symbol "bar" Please call the Redring Customer Service department – see Servicing section. • FLASHING SEGMENTS in front of bar – indicate the system pressure has fallen below the minimum operating pressure. • check if water has discharged from the pressure relief valve. If so call a Redring service agent. • check for leakage in the system. Once the fault has been cleared the boiler will turn on again if the system is filled and pressurised to over 0.5 bar. 2.12 - Servicing It is recommended that the Boiler be installed and serviced regularly by a REDRING service agent to ensure continual trouble-free operation. For details of service agents in your area please contact: Applied Energy Products Ltd.
2.14 - Power terminal Put the self-sealing nut (supplied with the boiler) for connection to mains from the top of the casing. In Put the self-sealing nut (supplied with the boiler) for this case remove the plastic cap and close the hole connection to mains from the bottom of the casing. below casing using same. Screw A Plastic cap moved from top to bottom 5 self-sealing nuts for accessories connections (Ambience thermostat, outside and/or Domestic Hot Water sensor and remote cut-out) Connections are cage-clamp terminals, to be used as to follow : - For accessories terminals use a 3.5 x 0.5mm blade screwdriver - For power terminal use a 5.5 x 0.8mm blade screwdriver.
2.15 - connection to the electricity supply Ground 16² Neutral 16² : 63A fused supply on the consumer unit via a double pole limited switch with minimum contact gap of 3mm. Phase 16² : Stripped length of wires between 17 and 20 mm POWERSTREAM Ascari -p. 23 -...
2.17 - control accessories wiring 2.17.1 - Operating from a switched live 1 - 2 External command relay contact 3 - 4 5 - 6 10 - 11 Total cut-out DT (remove the bridge) and / or 65°C heating floor safety limitator (mandatory) with manual reset. See § 1.3.1. 12 - 13 : Partial cut-out DP1 (remove the bridge) 14 - 15 : Partial cut-out DP2 (remove the bridge) External command of switched live (use phase 230V common to the boiler on pin L1) • Connectors will be of electrolytic quality brass (no corrosion of stripped ends at connection).
2.17.2 - Direct room thermostat connections and direct cylinder thermostat 1 - 2 Direct room thermostat connections 3 - 4 5 - 6 The brown wires should be removed from terminals 1 and 2 and be placed into terminals 5 ans 6 respectively 10 - 11 Total cut-out DT (remove the bridge) and / or 65°C heating floor safety limitator (mandatory) with manual reset. See § 1.3.1. 12 - 13 : Partial cut-out DP1 (remove the bridge) 14 - 15 : Partial cut-out DP2 (remove the bridge) External command from direct cylinder thermostat (use phase 230V common to the boiler on pin L1) • Connectors will be of electrolytic quality brass (no corrosion of stripped ends at...
2.18 - Wiring diagrams black white GND 1 grey yellow +Vdc 2 white pressure sensor connect. yellow OUT 4 +Vdc pink 230 V / 12 V pink Outside sensor (S.Ext) grey adaptator grey DHW sensor black white white white boiler’s sensor (SC) brown brown ambience thermostat (TA)
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black yellow white black white live L4 A1 External command white brown brown blue bleu bleu Key : AQS1 60°C Safety limitor with manual reset K1 to K4 : 20A power breakers AQS2 100°C safety limitor with manual reset T1 & T2 : 6kW heating elements POWERSTREAM Ascari -p.
2.19 - 3 Speed water pump I I I 3 speed (I, II and III) water pump for adjustment to operating needs, depending on insulation and circuit The boiler is factory set at pump speed 3, for lower pump speeds the selector in the centre of the pump may be turned to 1 or 2 using a large flat bladed screwdriver. Electrical data POWERSTREAM Ascari -p. 30 -...
2.20 - Control pannel description Usual operating functions Boiler’s temperature display in °C. When the boiler is off and the two middle horizontal LEDs on, antifrost protection is operating. (flashing in case of sensor failure) (Lit • displays normal Summer mode green LED operating) Winter mode green LED U s e d d e c r e a s e temperature during settings (instant touch) or cancel (press 3 sec) Used to increase temperature during settings (instant...
2.21 - Regulation settings For fitter’s use only. The regulation must be adjusted according the use of the boiler. • Press (3 sec) to start setting menu for 4 minutes. • Parameter # starts flashing in front of "°C" • Press (instant touch) to select next parameter, i.e °C, ... until °C • To start setting the displayed parameter press (instant touch). • The parameter value, i.e starts flashing in front of "bar". • Press (instant touch) to change setting. • Press (instant touch) to confirm setting and return to setting menu. • Press (3 sec) any time to exit the setting menu. POWERSTREAM Ascari -p. 32 -...
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PARAMETERS LISTING Press during 3 sec to access parameters menu. Available Condition Parameter # Description ex-work settings settings Depending to the boiler Manufacturer Output level number 2 ; 3 ; 4 ; 5 or 6 Output Maximum requested boiler's temperature 21 to 80°C 75°C (TCMA) Minimum requested boiler's temperature 21 to TCMA °C 50°C (TCMI) Ambience thermostat connected (no = 0 ;...
2.22 - Operating Display in front of symbol "°C" means the boiler is off, connected to power supply, with anti frost protection operating (boiler starts automatically when the boiler’s temperature or the Domestic Hot Water temperature turns below 5°C). Press to turn the boiler On or Off. 2.22.1 - Automatic / Manual Operation The boiler must be set to Manual operation as follows : Press the Auto/Man button. The display will show Au or Man, press the Auto/Man button again for a short period to toggle the display so that it shows Man. With the correct display showing, press and hold Auto/ Man for 3 seconds to return to normal operating mode. 2.22.2 - Requested heating temperature setting in manual mode to display the requested temperature flashing in front of symbol "°C". Press Press or to increase or decrease the requested temperature between TCMI and TCMA.
2.22.4 - Programming the maximum output setting of the boiler The boiler is delivered with a maximum output of 12kW (parameter = 1). Set the parameter Set parameters of to requested value according following tables to adjust the maxi- mum output of the boiler : Power stage # Power stage value 4 kW 2 kW 0 kW 4 kW 0 kW 2 kW Parameter number 12 kw Parameter value 10 kW to obtain the requested...
= 1 or if used to automatic operation -see § 2.20-), in front of "°C" is flashing, is flashing in front of symbol "bar". The boiler is restricted to heating. In case of Domestic Hot Water sensor failure (if parameter = 1), in front of symbol "°C" is flashing, is flashing in front of symbol "bar". The boiler is automatically restricted to heating. Please call the Redring Customer Service department -see Servicing section- Pressure FLASHING in front of bar (for example ) -indicate the system pressure has fallen below the minimum operating pressure. • Check if water has discharged from the pressure relief valve. If so call a Redring service agent. • Check for leakage in the system. Once the fault has been cleared the boiler will turn on again if the system is filled and pressurised to over 0.5 bar. POWERSTREAM Ascari -p. 36 -...
2.25 - Maintenance Once a year we recommend to have the boiler checked by a qualified technician. - Pressure inside the heating circuit needs to be controlled on a regular basis (pressure when cold will have to remain over 1 bar). Important : A few days after installation, and then at least once a year, check tightness of the electric connections of the heating elements and power supply. 2.26 - Overheating and replacement of heating elements - Floor heating: In case of overheat the temperature limitator (60°C) will cut power supply to heating elements .
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à Fastening the pump If the pump is producing some abnormal noise, slightly unscrew without creating leakage, then screw again following instructions below. 1 - Tighten the two opposite screws to a torque 2 - Tighten the other two opposite screws to a of 3 Nm. torque of 3 Nm 3 - Tighten the first two opposite screws to a 4 - Tighten the last two opposite screws to a torque of 5 Nm. torque of 5 Nm. SPARE PARTS LIST Designation Reference PSA 12 EB06001...
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