Myson 7-4 Installation, Operating, Maintenance And After Sales Manual

Also see for 10-6: Installation & maintenance manual

Contents

Myson 7-4 Installation, Operating, Maintenance And After Sales Manual Manual pdf 3 page image

03HI-LINE RC & HI-LINE RC Heater/Cooler1.0 General Information2.0 Heating System Designl This MYSON HI-LINE RC fan convector is designed forwall-mounted installation with a maximum installation heightof 7ft to the underside of the unit.l The minimum installation height is 6ft to the underside of theunit.l The minimum clearance between the top of the unit and theceiling should be 2 inches.l The minimum side clearance is 4 inches.l The HI-LINE RC should only be used on closed circulation,two pipe, pump assisted central heating systems (HI-LINE) onheating and cooling systems (HI-LINE Heater/Cooler), or as astand alone zone.l In rooms with ceiling heights above 10ft a ceiling fan or othermeans of heating stratification should be considered.l Before proceeding with the installation, the heating systemdesign must be considered and the unit correctly sized tomeet the heat loss requirements of the room at normal fanspeed.l This unit is supplied with an infra red remote control systemand has 3 operating modes:Automatic – the desired room temperature is programmed into the unit and the fan speed is automatically adjusted untilthe desired room temperature is achieved.Fan only – allows user selection of any of the 3 availablefan speeds irrespective of room temperature or watertemperature in the coil.Fan only with water temperature control – allows the user toselect any of the available fan speeds, which will operate onlyif the water temperature in the coil is above 90°F. Thisenables control of the unit via an externally mounted roomthermostat if desired.This fan convector can be fitted on a series loop with mono-floor venturi Tees, on a two pipe system or as a stand alone zone.For optimum fan convector heating performance the systemmust be capable of providing sufficient hot water through theheat exchanger. This means that:1. Care must be taken in sizing both the pump and piping.2. The minimum pipe size from boiler to fan convector must beat least 1 /2 inch.3. Where the unit is fitted on to a system with other emitters aseparate circuit for the fan convector should be consideredto provide adequate water flow.4. The system water must be above 90°F for heating mode.5. Optimum performance of this unit will require effectivebalancing of the whole system.6. This unit should NOT be used to replace a radiator in anexisting system unless an adequate flow of water can beguaranteed through the unit.7. The loop must be pumped. HI-LINE fan convectors are notsuitable for gravity circulation systems.3.0 Unit Selection/SizingHeat output performance is given in the Technical Data sectionof this manual. Outputs are shown for the 3 fan speeds,however, it is important to size the unit to match the calculatedheat loss requirements of the room with the unit operating onthe normal fan speed. The higher fan speeds are used inautomatic mode when the room temperature is significantlylower than the preset temperature.When establishing the temperature difference, i.e. enteringwater to room temperature, allowance should be made fortemperature drop in the system. It is the water temperature atthe unit that dictates the output.4.0 Locationl This HI-LINE RC unit may be fitted to any convenient wall ata height from floor level that suits the application, providingan unimpeded flow of warm air into the area to be heated.l The maximum distance from the underside of the unit to floorlevel is 7ft.l The minimum distance to the underside of the unit is 6ft.l This unit should not be installed in locations with ceilingheights greater than 3m.l For cooling applications, the need for disposal of condensatemay influence the position of the unit.l Prior to installation the wall should be checked to make sureit is straight and flat to avoid twisting the unit.1.02.03.04.0