Air Source Heat Pump Installation and Maintenance Manual Model Numbers: RC090MHXEA RC160MHXEA January 2013 www.samsungehs.co.
The outdoor unit (boiler) Deciding on Where to Install the Outdoor Unit The outdoor unit must not be placed on its side or upside down, as the compressor lubrication oil will run into the cooling circuit and seriously damage the unit. Choose a location where the noise of the Air to Water Heat Pump when running and the discharged air do not disturb any neighbours.
The 9kW unit has 1 inch BSP male connections; these should be connected to flexi hoses. To maintain flow rate we recommend 22mm pipework is used with this machine. All Pipework including the flexis need to be insulated with 23mm lagging It is essential to connect an expansion vessel, pressure gauge, pressure relief valve, filling loop, magnetic filter/strainer and automatic bypass. A pump will be required, normally in the flow. Dependant on system resistance some times, 2 pumps may be required.
The 16 kW unit has 1 inch BSP male connections, these should be connected to flexi hoses (supplied). To maintain flow rate we recommend 28mm pipework is used with this machine. All Pipework including the flexis need to be insulated with 23mm lagging It is essential to connect an expansion vessel, pressure gauge, pressure relief valve, filling loop, magnetic filter/strainer and automatic bypass. A pump will be required, normally in the flow. Dependant on system resistance some times, 2 pumps may be required.
Other components you need to supply and fit: An expansion vessel, pressure gauge, pressure relief valve and filling loop Most heating engineers use a robokit with the appropriate size expansion vessel, this is sized exactly the same way as when using a boiler. Pump Your pump needs to supply 20l/min for the 9kW and 30l/min for the 16kW unit. The static resistance through the unit is 10kPa for the 9kW and 15kPa for the 16kW unit.
The Cylinder The cylinder needs to be installed less than 15m from the control box to allow for the temperature sensor cable. Note the size and weight of the cylinder. Full installation instructions are included with the cylinder. We only recommend using Gledhill heat pump stainless steel cylinders however other cylinders can be used IF the coil area is more than 2.5m^2. Smaller coils are not acceptable and cannot be used.
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Wiring and Power Supply Information Power The EHS system needs 2 power supplies: One connects into the outdoor unit, 20 Amp for the 9kW and 32 Amp for the size 16 The one for the control box is 16 Amp and wires into the top of the breaker (mcb) in the box Immersion Heater The immersion heater is connected into the control box terminals A3 Neutral and A4 Live, The control box controls the operation of the immersion heater. If a fused spur is used it must be labelled as switching it off will cause an error.
Start Up Procedure Disable the cooling function, with the power OFF, remove the front of the remote controller, slide it upwards, turn it over and flick dip switch 1 to on. Cooling will no longer be available On the outdoor unit remove the front cover, there are 2 screws at the top and one at the bottom, slide the cover down.
Starting it up in heating mode If you have two port valves you should find the heating valves are open and the hot water valve closed. If you have a 3 port valve it should be open to heating mode. Start the unit my Pressing heating on off button (top left inside the door) to start the unit, set the mode to heating (sun symbol) Set the desired water temperature i.e. 50C using the up and down buttons.
What the symbols mean: Setting the correct time www.samsungehs.co.
Telling the unit it has a tank. When the unit is delivered it doesn’t think there is a hot water cylinder tank installed. You have to tell the unit about the cylinder.
Run test in hot water mode In hot water mode check that the 3 port valve or the 2 x 2 ports are sending water into the hot water cylinder, if not check the wiring. Using the check button (blue) on the remote controller check the hot water cylinder temperature and note it down, the hot water temperature is displayed when the tap symbol shows. After 15 minutes of running check the hot water temperature again, it should have risen, again note the temperature.
Field Settings Many field settings will need to be made: NOTE the set button is the grey one not the blue When finished or if you get lost press cancel delete 2 x to return to the normal screen Note: if you set a field setting and go back to check it, it will not have changed, the field setting do not get written to the PCB until you finish setting and exit.
Operating the System in heating mode using an external thermostat and / or a boiler run signal from an under floor manifold. You have now set the unit up to run from an external signal; the controller no longer drives the unit. Using a field supplied room thermostat or signal from an under floor heating system.
Maintenance Monobloc systems The Samsung heat pump should be maintained at least once a yea r to comply with warranty and RHI. Maintenance procedure Stop the unit, clean the strainer or magnetic filter in accordance with manufacturer’s recommendations and replace it. Test the concentration of the Anti-freeze (glycol) in the system using a Glycol tester the level should be 25%. If you don’t have a glycol tester a Samsung glycol tester can be bought from your heat pump supplier or online.
Leave this with the Homeowner Your Samsung heat pump heats the house and hot water cylinder much like a normal fossil fuel boiler however there are a couple of differences which you should notice. 1 The radiator temperatures are lower than normal and will alter as the outdoor temperature changes. The colder it is outside the warmer the rads and vice versa. This function is automatic and is designed to save you money. At hottest they will reach 50C.
Samsung EHS Warranty Unit 2 Warrior Park Eagle Close Chandlers Ford SO534NF Web site www.samsungehs.co.uk Email sales@samsungehs.co.
Samsung EHS Warranty Unit 2 Warrior Park Eagle Close Chandlers Ford SO534NF Web site www.samsungehs.co.uk Email sales@samsungehs.co.uk Warranty Registration Card Please complete both sides of this warranty card and return it to activate the warranty For terms and conditions of the warranty please refer to the warranty document at www.samsungehs.co.uk / information / downloads / technical downloads. www.samsungehs.co.
