Installation and Maintenance Manual Combi Hybrid
Contents
1. OO I JA Dy rr 6 amp 6 amp gt EIQ amp R Power input 1 Power supply 240V 20A for size 9 ToS Heating pump 32A for size 16 a used only when Thermostat a buffer is 2 port valve open when heat ae installed pump punning Brown wire to B6 Blue to B5 a ly 2014 qe KA Freedmarm5t m samsungehs co uk G Hendra September 2014 Heat Pumps SAMSUNG Wiring and Power Supply Information Changing the wiring to your combi boiler Existing Combi wiring will be like this Remove the stat from the combi and wire it to the grey wire on 2 port valve 2 Stat 24 230V U 50 60Hz Your boiler may have different terminal numbers than the ones shown above Connect T2 or run terminal to the grey wire of the 2 port valve see next page MAKE SURE YOUR COMBI RUNS ON 240V signals first If not a relay is required 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 3 Amp and wires into the top of the breaker mcb in the box a Z Ag fA A W 4 3 A4 6 63 amp 6 amp 62 6 6 6 Communication cable This must be run from the outdoor unit to the control box Use 2 core flex 0 5 1mm its 16V ac Sensors Sensors cannot not be cut or extended Keep sensors ELCB away from mains cables please The blue cylinder sensor is not required it is normally used in the cylinder The2. it is warmer than 3 C outside below 3c the boiler takes over the heating You will notice the radiators will be much hotter in boiler mode NOTE as the temperature is rising the heat pump wont restart at 3 C it restarts 3 degrees higher than the set temperature so in this case at 6 C Hot water Your system will keep the hot water cylinder hot at all times automatically as you use the water the heat pump will constantly top up the cylinder A cold cylinder should be reheated within an hour An anti legionella operation will be completed at a predetermined time every Tuesday morning The hot water will be hotter on a Tuesday morning than the rest of the week F reed o mtwsamsungehs co uk OG Hendra September 2014 21 Heat Pumps
3. left button to turn the pump on and leave it running while in test mode to avoid a fault Press the top left button the unit will run the pump The grey set button will start the backup boiler Using the blue view button you can see 5 temperature sensors inlet and outlet to the heat exchanger the red sensor where used water cylinder and sensor in the remote controller To test the external run signal or stat is connected adjust If stat is wired to B22 Heat1 will replace test on screen If stat is wired to B24 Heat 2 will be displayed If both stats 1 and 2 are operating heat 1 and 2 will flash one after the other Watch out for this wireless stats can cause problems where they send a signal which the unit sees on both terminals it sees this through the neutral if this happens you will need a relay To exit service mode press and hold cancel delete for 6 seconds Heat Pumps Back up Boiler IG in Show five temp sensor IG 5 wt LE i values in order IG Pr tk g gt F reed o mwsamsungehs co uk G Hendra September 2014 11 Test 1 To Avoid further problems we 5 n M S U N G recommend you set the units up in test mode before starting the heat pump Firstly in test mode run the pump press blue set button and test button together for 6 seconds The controller will display TEST Immediately press the top left button to turn the pump on and leave it running while in test mode When the pump is running a little ho
4. red safety sensor is to avoid over temperature clip it to the outlet of the combi boiler It plugs into a red socket T3 on the controller PCB There is a black wire with a red plug in the box this is not used Diverter Valves 2 port valve no 1 for the heat pump wire B6 live and B5 Neutral 2 port valve no 2 for combi wire to B4 live and B5 Neutral wire the orange B24 and grey to the run signal in the combi Thermostats timers and under floor heating manifolds we recommend in all cases the heating should be controlled by an external field supplied room stat setback stat time clock etc or run signal from a boiler enable signal from under floor manifolds If both rads and u floor are used in the same system the heat pump can be controlled to run at 2 different set points one for each thermostat terminal To run the unit with a stat make a connection from B20 B24 B20 is permanently live 240V ac B19 is Neutral When the stat is made the unit will run when the stat opens the unit will stop NOTE the pump will run on for 6 minutes after the unit is told to stop Pump The circulation pump must be wired Live to B6 and neutral to B5 MAX pump power is 500 Watts If two pumps are used wire them both to these terminals o Freedmarm5t m samsungehs co uk G Hendra September 2014 7 Heat Pumps SAMSUNG Checklist Checklist Outdoor unit Is there 300mm to the left of the outdoor unit Is there 600mm to the right of the outdoo
5. used it must be 25mm longer and wider than the base of the unit to catch all the drips Dimensions Size 16 1420mm h 940mm w 330mm d 103kg Size 9 998mm h 940mm w 330mm d 75kg 300 or more The space around the unit is very important allow 150mm to the left hand side facing the front of the unit 600mm to the right of the unit 300mm to the rear of the unit and 1500mm to the front of the unit 300 or more 600 or more 1500 or more The unit will not benefit from being mounted on the North or South of the building any aspect is fine you E i should avoid very exposed positions to avoid wind SSS SPS blowing into the back or front of the unit and very sheltered positions An exposed location may increase difficulty for full unit defrost The Control Box When the heat pump is delivered it comes with a control box which also contains the flow switch Install the control unit indoors as it s not waterproof It needs to be sited within 15m of the hot water cylinder 100m of the outdoor unit and as near as possible to the pump flow switch and any zone valves The box is 323mm wide 339mm high 131mm deep F reed o mtwsamsungehs co uk OG Hendra September 2014 3 Heat Pumps SAMSUNG 19100 NLM a 5 J I I PLIGAH IqUuIoO SAIBA UNO uou Y23UD ajHuls e q ueo dund jeauy yLOZ unf eipuaH 50 JN 09 SYSDUNSWES MMM 6G y UO AJLA OU D lt TD V an ae Si ses 252853 a
6. you finish setting and exit Field settings combi and heating only hybrids e 1061 30scs backlight on duration e 2011 same setting as 4033 low ambient setting for optimisation e 201215 high ambient temp for optimisation e 2031 50C for rads 45C for Ufloor Hi water temp for optimisation e 2032 37C lowest water temp for optimisation e 2092 1 tells unit to use an external stat or u floor run signal e 4031 1 tells unit a backup boiler is present e 4032 1 tells unit to use backup boiler e 4033 3C changeover temperature from HP to boiler system specific A full list of field settings are in the installation and user manual which come with the outdoor unit F reed o mtwsamsungehs co uk OG Hendra September 2014 15 Heat Pumps ee SAMSUNG 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 Using a field supplied room thermostat or signal from an under floor heating system through B20 B22 and or B20 B24 the controller no longer drives the unit When the contact is made the unit will start and the water temperature will be controlled by the heat pump you will not have any control over it The water temperature is determined by the outdoor temperature the colder it is outside the warmer the water The unit is running in weather comp mode You will see 0 0C on the Weather Compensation screen the uni
7. 1 and B14 To exit service mode press and hold cancel delete for 6 seconds Freedmamn m samsungehs co uk G Hendra September 2014 12 Heat Pumps Caution in Cold weather If the water in the system is below 10C the heat pump WILL NOT START Press the blue view button you can see 4 sensor readings press it until the pump symbol shows a circle round a house This is the water temperature if it s below 10C the unit will not start but the pump will run i edt me Td Wy a You must warm up the water to get the unit to run the easiest way to do this is to run the backup boiler using the test run page 11 to preheat the heating circuit Once it s warm come out of test run and check the heat pump works ok SAMSUNG Further cold weather cautions If everything is cold less than 5C the remote controller the water the tank etc the unit will not operate correctly it can t understand how the house has got so cold You will find the on off button for heating won t work and if you try to use HW mode it will switch itself off You need to allow the unit to warm up first Make sure the remote controller is in a heated room Starting it up in heating mode S If you have two port valves you should find the heating preg valves are open and the hot water valve closed If you gt 9 0 have a 3 port valve it should be open to heating mode 88 6 Start the unit my Pressing heating on off button top l
8. 10kPa for the 9kW and 15kPa for the 16KW unit The flow meter has a resistance of around 5kPa The total resistance of the components will be approximately 39kPa for the size 9 unit and if the cylinder is piped using both coils and approximately 44kPa for the size 16 unit if using both coils Flow switch and flow meter The unit requires 16L min flow at all times if you don t achieve this E911 error will occur to check this flow switch is installed The flow switch comes with the control box The flow Switch MUST be installed either horizontally or vertically with at least 150mm of Straight pipe either side connection is 1 female BSP The wire is 2m long and needs to connect into the wiring station This wire can be extended to suit We recommend a flow meter is installed into the flow side of the flow switch as per the photo Adaptors may be required to enable this join The flow switch is not IP65 rated weatherproof and so must not be installed externally gt Diverter valves dl You will need to put a 2 port valve on both the heat pump and the boiler to shut gr them off when they are not operating you need to supply these The valve on the heat pump can be a single check non return valve Bypass Valve You must install a bypass valve in the heating circuit as far away from the heat pump as possible The bypass valve enables flow to be maintained as the tevs shut down at all times to prevent unit flow fault Buffer
9. SAMSUNG Air Source Heat Pump Installation and Maintenance Manual Combi Hybrid Model Numbers RCO90MHXEA RC160MHXEA z a a D ir gt H a pg _ Imp E lt p r FJ i f 3 3 A ha Sa Mn SMART ine _ SS gt ere Smart Heating Approved Installer F re edo wsamsungehs co uk G Hendra September 2014 1 Heat Pumps SAMSUNG A hybrid or Bi valent heating system uses a heat pump and the existing boiler together They are set up to NEVER run at the same time Hybrid or Bi Valent heat pumps This type of system is popular as it means there is no work required to modify the existing heating system all radiators are kept the same as Is pipework controls etc Like a hybrid car when the going is easy the electric system operates and when the going is hard the oily bit does the work In the case of the heating system when the outdoor temperature is warmer typically above 3C the heat pump will heat the hous e and when the temperature is cold the boiler will take over We normally recommend the old boiler continues to supply hot water and the heat pump helps out with just the heating this is especially true if you arre using a combi boiler aid Keep the boller the rads the tank and connect in a monobloc system F re edo wsamsungehs co uk G Hendra S
10. boiler is changed or any major works are carried out to the system When installing any Heat pump we insist on a thorough system flush prior to connection of the new equipment your warranty will be at risk if a suitable flush is not carried out and the system becomes blocked during normal operation The recommended procedure is to power flush the system in both forward and reverse directions at 110 of the normal flow rate and to use a chemical flushing agent where required Filling Using the power flusher fill the system with water and 25 Propylene Glycol to more than 1 bar DON T fill the unit with a hose expecting no air locks the heat pump is prone to air locking at the outdoor unit there is no auto air vent here Don t pour neat glycol into the unit there is no chance of the heating pump moving neat glycol around the system With the power OFF remove the front of the remote controller slide it upwards turn it over DON T TOUCH THE PCB there are 8 dip switches near the red sensor using a small screwdriver flick dip switch 1 and 5 to on Cooling will no longer be available Put the controller back on the wall On the outdoor unit remove the front cover there are 2 screws at the top and one at the bottom slide the cover down Inside the unit on the back of the white switch box there is a baseplate heater PCB see picture Which is not normally required in the UK disconnect the bottom wire with the white plug and tuck it out the wa
11. eft inside the door to start the unit set the mode to heating En sun symbol Stas Display Set the desired water owing temperature i e 50C Compressor On er aka por Once the unit starts the pump will start inmediately the compressor will start after 3 minutes you will see the symbol for the compressor in the status screen The pipework will begin to heat up check the flow temperature by pressing blue Hodder taler view button once the temp of the flow is shown next to a On l symbol of a house in a circle Over time this will warm up now check all the radiators or U floor loops are hot as well Solar thermal 3 NOTE panel On On the latest software if there is a problem with flow no error shows for 10 minutes it s waiting for the air to come out the Back up boiler i system If the compressor outdoor unit fails to start this could be due to flow problems See next page Domestic water On Defrost operation On Anti freezing operation On Sanitary operation On F reed o twsamsungehs co uk G Hendra September 2014 13 Heat Pumps SAMSUNG E911 and compressor not running READ THIS When the pump is running a little house with a circle around it in the status window of the controller The unit wants to see 16 I min flow to activate the flow switch if there is not enough flow the compressor will fail to start after a few minutes an E911 fault will show every 15 seconds Check The flo
12. eptember 2014 2 Heat Pumps SAMSUNG 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 Install the outdoor unit on a flat stable surface with plenty of drainage gravel or grass IS ideal make sure the base can support its weight Position the outdoor unit so that the air flows into an open area Place the outdoor unit where there are no plants and animals When installing the outdoor unit near sea make sure it is not directly exposed to sea breeze The golden rule is if you can see the sea from the position of the outdoor unit you need to apply Blygold or equivalent anti corrosion coating on the whole unit The unit needs to be securely Drain Hole 20 x 4ea mounted at least 100mm off the ground on rubber feet or wall brackets the unit must be bolted down for security using 10mm bolts and Zebedee bolts The unit must have adequate drainage away from the unit it can produce up to 6 L hour There is a drainage kit included which we recommend you don t oa Hr use its best to let the unit drain into oD ommi Ty the ground The drain holes in the Drain Plug x Tea unit are clearly shown if a drip tray is
13. heat thermostat is set to 70C TJ Overheat Thermostat Adjustment Press the silver immersion button on the Samsung remote controller this will force the immersion heater on Check immersion heater works properly Measure the current drawn by the heater it should be 12 13 Amps Measure the temperature of the flow using the remote controller Measure the flow rate from the flow meter With the unit running flat out measure the temperature of the air as it enters the coil and the temperature of the air in the garden They should be the same check cold air is not recirculating F reed o mtwsamsungehs co uk OG Hendra September 2014 20 Heat Pumps SAMSUNG Leave this page 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 their hottest they will reach 50G If you would like a constant radiator temperature this can be set by an engineer but it will increase your run costs by up to 25 2 The system is designed to run continuously in cold weather turning the system on and off will make the house uncomfortable and will increase your run costs The most efficient way to run th
14. is heating system is to leave it running at the set temperature 24 hours a day in winter time If you turn off the heating and let the house get cold less than 176 it will take a very long time to warm back up to a sensible temperature Your systems have been set up to be simple to operate The Samsung controller looks like this you should not use this or press the buttons on it it is for commissioning and making settings to the system only You should see 0 0C on the screen this means the unit is under external control from a room thermostat If the system goes into fault the screen will show a number at the bottom starting with E for example E911 A00 The engineer will want to know this number when you call him i SAMSUNG Heating Control of the heating is by your wall mounted thermostat not the Samsung controller you need to read the instructions for this thermostat as its field supplied The boiler will run when told to by the thermostat DON T set the room temperature too low the heat pump takes time to recover the house temperature as a rule don t set the temperature more than 2 degrees below your normal set temperature when you go out of the house or it will take a long time to recover To switch off the heating in summer set the temperature down to 16C to avoid the heating Starting up To control the temperature in your rooms please use the radiator valves Backup Boiler The heat pump to heat the house when
15. o comply with warranty and RHI The warranty card also doubles up as a maintenance sheet Maintenance Monobloc Systems 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 glycol tester refractometer can be bought from your heat pump supplier or online Refill the unit pressure should be 1 2 bar We need to test the operation of the unit against the hot water cylinder So first we need to draw off 50 liters of water run a couple of taps for 5 mins to achieve this The unit should start up automatically in hot water mode if it doesn t press the top right button on the controller in 3 4 mins it will start heating the cylinder a coke can symbol will show in the status section of the remote controller The heat pump should be able to achieve 48C cylinder temperature without using the immersion heater While running check the outdoor unit for damage amp debris the coil needs washing we recommend you use an approved EHS heat pump cleaning chemical your distributor will stock this Instructions are given on the bottle You also need to clean and polish the outside casing we recommend car wax to do this Hot water Cylinder Check electrical connections amp sensor are fixed properly and the over
16. on measure this Have you claaned the coil Have you polished the unit In Heating Mode Water flow temp from remote controller Water return temp measure this Flow rate l min from flow meter Temp of air at the back of the unit ee Ge Flow rate min when radiators and ufloor manifolds closed from flow meter Cylinder Hot water cylinder model and serial no Cylinder water tamp at start up press view button on rc And after 20 mins press view button on rc Water flow temp from remote controller Water retur temp measure this Flow rate l min from flow meter Immersion heater currant press immersion button on rc Immersion heater cutout setting remove cover and adjust to 700 Commissioning Data not required at maintenance Where wag the unit purchased Date Installed Date delivered proof of delivery required Date Commissioned mm warranty starts from this date Are you Samsung approved installer Would you like to be an approved installer Warranty required years 3 5 T years Installation Address You Engineers name Company Address Engineers phone number Email address Signature of engineer Data accept the terms of the Samsung warranty and confirm the system has been registered within 30 days of delivery also include a copy of the delivery note Signed Name F re edo wsamsungehs co uk G Hendra September 2014 19 Heat Pumps SAMSUNG The Samsung heat pump should be maintained at least once a year t
17. r unit Is there 300mm to the rear of the outdoor unit Is there 1500mm at the front of the outdoor unit Is the unit more than 100mm above the ground Have you allowed for the unit drainage Is there a power supply to the outdoor unit Indoor control box Have you stuck the yellow sticker attached to the front of the unit Is there a separate supply for the indoor control box Have you wired in a room thermostat OR a run signal from ufloor manifold Is the Samsung remote controller well out of reach of the end user The plumbing Is plastic pipe being used If so is it all bigger than 22mm Is a flow meter installed directly into the flow switch Is the flow switch horizontal Is there 150mm of straight pipe either side of the flow switch If the pump is a variable speed type is it set to meet max speed within 10 seconds Is there a filter before the return to the heat pump Have you installed a bypass valve or allowed for bypass Have you got your glycol ready to put in the unit Have you lagged all external pipework ryg F reed o mtwsamsungehs co uk OG Hendra September 2014 8 Heat Pumps Filling and flushing S vi S U N G The Building Regulations for England and Wales Part L 2006 now require a central heating system to be cleaned and inhibited chemically whenever the
18. samsungehs co uk OG Hendra September 2014 14 Heat Pumps SAMSUNG Field Settings Field settings are what define how the unit is configured and how it will work each system can have very different field settings Many field settings will need to be made NOTE the set button is the grey one not the blue Field settings are in groups the 20s are for weather compensation and temperature control in heating the 30s are for the cylinder and the 40s are for backup boilers and hybrid systems Below are the field setting specific to your system as described in this book Enter field settings by pressing test for 6 seconds 10 will show on the screen Scroll up to 20 using the silver up button press set 2011 will show To adjust this setting press set again the setting will appear at the top of the screen adjust it with the silver up down buttons and press set again scroll up to the next field setting using the up and down buttons and repeat When you have finished all your 20 settings press cancel delete once 20 will show on the screen press the silver up button to move to the 30s and repeat the procedure above When finished or if you get lost press cancel delete 2 x to return to the normal screen 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
19. t 8G lt 258000 o 9 YM 300090 og 2 lt L BES GRS Ze 558 Legeg 4 PBwn o0om 5334 O OD 3 OD DQ O o O gt DQ 33 D og 79 FOG gt O 57 Do Oo 3 O TA 3 a TQ206 amp FE a Oc go jord Oo aQones O o co Solon D y Q 3 y O Q M OD The heat pump 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 NEVER use 22mm plastic tube if you insist on using plastic use 28mm throughout 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 A flow meter setter and flow switch should be installed and a strainer in the return F reed o mtwsamsungehs co uk OG Hendra September 2014 4 Heat Pumps SAMSUNG 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 30I min for the 16kW unit The static resistance through the unit is
20. t is using _ weather compensation function to work out the water 50 temperature If you need to boost the heating water temp this can be done by pressing the silver up and down buttons This boosts the radiators by up to 5 C but warning this will cost more money to run Water flow temperature 30 0 2 4 5 i m a a ig When an external stat or run signal is used most of the functions of the Samsung remote are disabled A waging finger shows at the bottom to show this All these buttons are disabled and the functions they control are also disabled Ambient air temperature Note when the heating command is sent to the unit it will not start for 3 minutes And when the thermostat or signal is removed the pump will run on for up to 6 minutes Lhe ate On latest software the end user can override the stat switching the unit off with the top left button Avoid this as the unit will no longer run If the sun signal is not on the display the heating is not going to operate F reed o mtwsamsungehs co uk OG Hendra September 2014 16 Heat Pumps SAMSUNG Using the field settings you have set the heat pump to heat the house when it is warmer than 3 C outside below 3c the boiler takes over the heating Testing the backup boiler operation You need to test this works Start the unit operating in heating mode using the heat pump On the back of the heat pump outdoor unit is a black temperature sensor i
21. t looks like a tube you need to put this in a glass of ice and water to convince the unit that the outdoor temperature has fallen Once it registers the temperature falling below 3C the heat pump will stop A symbol of a milk churn with a B in it will appear in the right hand side of the status window on the Samsung remote controller A run signal should now be being sent to the combi boiler which should fire up it should start its pump and the 2 port valve for the combi should be open There may be a period of up to 6 minutes where the heat pump is also operating please wait and the heat pump will switch itself off Once this all works you need to warm up the temperature sensor on the back of the heat pump to convince the unit to restart NOTE the heat pump wont restart at 3 C it restarts 3 degrees higher than the set temperature so in this case at 6 C F reed o mtwsamsungehs co uk OG Hendra September 2014 17 Heat Pumps SAMSUNG Warranty Registration Card Warranty MUST be registered within 30 days of delivery to site You must send proof of delivery with the warranty card Warranty will start from the date the unit is delivered All registrations made more than 30 days after this period will be rejected If commissioning data is not available at this time register the unit and send the data at a later date the warranty certificate will be returned to you when the whole form is completed This warranty covers only
22. the Samsung components of the installation it is parts with a pre set labour allowance only The warranty is between Freedom Heat pumps and the installation company only this is NOT an end user warranty It is the role of the installer to offer a warranty to the end user covering all of the heating system including the heat pump The standard warranty is valid for 12 months from date of delivery as entered on this card If the unit is installed by a Samsung approved installer and this card is sent back within 30 days of delivery date the warranty is automatically extended to 36 months Approved installers also have access to warranty extensions at the time of registration for warranty a 4 year extension to the warranty can be purchased from your distributor or directly from Freedom Heat Pumps Call 02380274833 for details and pricing The warranty card can also be used as a maintenance card F reed o mtwsamsungehs co uk OG Hendra September 2014 18 Heat Pumps Please return a photo or scan of this form and the delivery note to gt U warranty freedomhp co uk Once received we will confirm receipt and start of the warranty period Samsung EHS commissioning and maintenance sheet You will need a thermometer and a pen to complete this form The Unit Modal Number From outdoor unit right hand side Serial Number From outdoor unit right hand side Ambient air temp measure this in tha garden Have you claaned the filter Glycol concentrati
23. use with a circle around it in the status window of the controller The unit wants to see at least 16 I min flow to activate the flow switch if there is not enough flow the unit will never operate You should have a flow meter installed if you haven t now is the time to buy one If you look into the flow meter you can see the flow in litres per minute In this picture you can see a flow rate indicated this shows 25l min NOT 35l min If the flow rate is too low you need to fix this before moving on Check All valves are open Including TRVs underfloor heads etc the heating 2 port zone valves should also be open by default during this test The pump speed is set at highest not fluctuating but at high constant speed If you have a small pump 15 50 or 15 60 this will almost certainly not be big enough There is no air in the system hold the top of the flow switch you can actually feel the paddle moving back and forward and hear it rattling if there is air If you manually open the hot water 2 way valve check the flow rate again if you can only reach 161 with the heating and hot water open together it s a sure sign the pump you have installed is too small Once the flow rate is high enough move onto test 2 below while still in test mode Press the std eco power button this closes valve 2 This valve is for zone 2 wired to B15 and B18 press the top right button this closes the valve is for zone 1 wired to B1
24. vessels We don t normally use buffer vessels on Samsung EHS systems as long as the water volume circulating is over 20 Litre The inbuilt variable speed compressor means the unit can operate without a buffer 1m of 22mm pipe holds 380 ml of water if you add the volume in the unit and components and make sure you put the bypass valve more than 25m from the heat pump your system volume will be adequate When utilizing multiple units a buffer or low loss header is required to hydraulically join the units Magnetic Filter A magnetic filter with strainer must be installed in the return to the unit A magnetic filter ensures that debris foreign materials do not cause restrictions within the pipework system Glycol A propylene glycol mixture must be utilized to prevent freezing of the water within the system It is important that the glycol concentration is adequate to protect the unit in case of power failure in very cold conditions If the unit freezes up there will be no warranty Manufacturer dependant a mix of around 25 should suffice wi F re edo wsamsungehs co uk G Hendra September 2014 5 Heat Pumps SAMSUNG Pa Flow switch 2m longn OSSE TT 908 om von carvexiead thks IV EEV DOWLOAD TST TS2 SG FS elg a m long 3 3 DOWNLOAD 0 Sr DS A OS me rs Communication cable 2 core 1mm 16Vdc de oO eelelelelelelelelelelelel n S S 88 ejg REEERE O 4 2 8 O10 8 O
25. w rate on the flow meter it MUST be over 18I min The flow switch is connected to the PCB of the control box The flow switch is round the right way you can turn the head there is an arrow All valves are open The pump speed is set at highest There is no air in the system There is water in the system If none of this works you need a bigger pump or its air locked If you think the flow switch is faulty it very rarely is remove the paddle from the water by undoing the red nut you will need to block up the hole temporarily Now run the pump system again using the top left button pressing it twice clears any faults After 3 mins of pump operation and holding the flow switch the outdoor unit will start don t rush the system it takes time If the flow switch is ok After 3 minutes the compressor outdoor unit will start so the problem is flow and possibly air cavitation see below Rattling flow switch Cavitation E911 fault could be caused by a rattling flow switch This can usually be heard but can also be felt by holding the flow switch To correct it use a screwdriver on the top of the flow switch and turn the screw from 12 o clock to 1 o clock Alternatively you could also adjust the flow meter use a pair of plyers on the top of the flow meter and turn the ball o fix valve from 12 o clock to 1 o clock this deflects the water flow amp should further reduce the rattle Flow meter in standard positioning Freedmarmnt w
26. y Powering Up Apply power to indoor control box first then the outdoor unit In the middle of the control box PCB you will see two tiny leds one red and one orange flashing The red one shows the signal leaving the PCB and the orange shows the signal coming back from the outdoor unit If this doesn t happen check there is power on at the outdoor unit Check the comms cable between the outdoor unit and the control box F1 and F2 Put the cover back on the outdoor unit F reed o mtwsamsungehs co uk OG Hendra September 2014 9 Heat Pumps SAMSUNG Setting the Clock Press the grey set button for 5 seconds The day will flash adjust this with the silver up and down buttons press grey set The hours will flash adjust this with the silver up and down buttons press grey set The minutes will flash adjust this with the silver up and down buttons press grey set you are back to the normal screen a F reed o mtwsamsungehs co uk OG Hendra September 2014 10 Heat Pumps SAMSUNG Electrically testing the unit lt is possible to test each component one after another using a service function You can use this to make sure you have wired everything correctly To access service mode press blue set button and test button together for 6 seconds a l l TO D 23 a TA StdiEco ov Pwr 23 Cem Set cl 5 temperature on stat up N The controller will display TEST Immediately press the top
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