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I N S P I R E D E F F I C I E N C Y H I G H E F F I C I E N C Y H O T W A T E R S Y S T E M S EXTR E ME HIGH EFFIC IENCY HO T WATER SY STEM S with INJEC TION D Y NAM IC S TECH NICAL D O CU M ENTATION ISSUE 01 /1 8 Rev.
TA BLE O F C ON TE NTS Technical Data Electrical Details Connection Details Dimensions Standing Losses Flow Characteristics Flow Characteristics Flow Characteristics continued Overview Description Operation Operation Installation Siting Over Heat Protection Open Vented Applications Discharge Pipework Discharge Pipework continued Unvented Mains Kit Valve Multiple Rapide Extreme Installation Electrical Connections...
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TE C HNI CAL DATA GENERAL EXTREME 200 EXTREME 300 EXTREME 500 Model Water Content of Appliance litre Weight (Empty) DHW Flow Connection 1” 1¼” 1½” DHW Return Connection ¾” ¾” 1” Primary Flow Connection Primary Return Connection 1” Mains Cold Water Supply Connection 1¼”...
F L O W C HA RA C TERIS TICS Rapide Extreme 200 Rapide Extreme 300 Rapide Extreme 500 1000 DHWS Flow (litres) ▲ FIGURE 01. 10 MINUTE PEAK OUTPUT AT 60°C Based on 80°C primary flow temperature, 50°C primary return temperature and a 10°C inlet temperature Rapide Extreme 200 Rapide Extreme 300...
FLOW C H ARA C T ER I ST I CS 300 350 450 500 550 1000 1050 1100 1150 1200 1250 1300 1350 1400 1450 1500 1550 1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 DHWS Flow (litres) ▲...
O VERV IE W DESCRIPTION The Mikrofill Rapide Extreme is a domestic hot water generator that combines the advantages of both an instantaneous water heater and a storage system, whilst ensuring that the associated boiler plant operates at its optimum efficiency during domestic hot water generation. The Rapide Extreme is suitable for open vented or unvented applications.
The primary connections of the plate heat exchanger are extended outside of the casing and made available for connection to a Mikrofill Ethos condensing boiler or other suitably sized boilers. To ensure only the correct minimum temperature is loaded and stored in the cylinder, the primary temperature sensor (TT4) will look for a minimum primary temperature before releasing the loading pump to allow the loading process to begin.
IN ST AL LA TION INSTALLATION IMPORTANT: Please read and understand these instructions before installing the Rapide Extreme hot water loading system. Incorrect installation may invalidate the guarantee. The Rapide Extreme must be installed by a competent installer in accordance with Building Regulation G3 (England and Wales), Technical Standard P3 (Scotland) or Building Regulation P5 (Northern Ireland).
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INS TAL LA TI O N INSTALLATION The Rapide Extreme can be fed directly from the mains cold water supply to the property without the need for seperate feed cisterns or vent pipes. It is supplied complete with all its necessary inlet and safety controls, thermal cut out and two port motorised valve in the mains unvented kit.
IN ST AL LA TION INSTALLATION The example below is for a G1/2 temperature relief valve with a discharge pipe (D2) having 4 no. elbows and a length of 7.0m from the tundish to the point of discharge. From Table 1: Maximum resistance allowed for a straight length of 22mm copper discharge pipe (D2) from a G1/2 temperature relief valve is 9.0m.
IN ST AL LA TION MULTIPLE EXTREME INSTALLATION The Rapide Extreme hot water cylinders can be installed in a multiple arrangement but all pipework must be installed in a parallel fashion, or the flow must be arranged to be equal to all cylinders for both primary and secondary water.
ELEC T R I C AL CO N N ECT I O N S Sensors 24 25 26 21 22 23 ▲ FIGURE 09. SCHEMATIC WIRING DETAIL Connections 2 and 3: External Legionella Circuit Connection: Sensor Connections Connections 4 and 5: N/A Connection: Loading Pump Supply Connections 6 and 7: N/A Connections 21, 22 and 23: Heating Demand Relay...
EL EC T RI CA L C O NN EC TIONS NTC SENSOR SCHEMATIC TT 3 DHW FLOW HEAT TT 4 SOURCE DHW SECONDARY RETURN TWO PORT VALVE TT 2 LOADING TT 1 PUMP MCW SUPPLY ▲ FIGURE 10. SCHEMATIC DETAIL FOR SENSOR POSITIONS TWO PORT VALVE WIRING GUIDE Live Connection to Valve from 9 on PCB Neutral Connection to Valve from 8 on PCB...
O P E RAT I O N OPERATING STATUS To alter the operating mode or requested set point, press the button briefly and the setting will cycle to the next option. Once you have achieved the required setting the unit will automatically adopt the new setting shown on the display.
O PERA TION FAULT DIAGNOSIS It is possible to interrogate the Rapide Extreme controller to determine sensor readings and fault history. To do this you must press and hold the button on the controller until “SO” appears, this will put the controller in to diagnosis mode, pressing the button again briefly will allow you to cycle through the sensor readings followed by a fault history.
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