Samsung RC090MHXEA Installation Manual
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Air Source Heat Pump
Installation and Maintenance Manual
Heating only Hybrid
Model Numbers:
RC090MHXEA
RC160MHXEA
www.samsungehs.co.uk
©G Hendra September 2014
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Summary of Contents for Samsung RC090MHXEA

  • Page 1 Air Source Heat Pump Installation and Maintenance Manual Heating only Hybrid Model Numbers: RC090MHXEA RC160MHXEA www.samsungehs.co.uk ©G Hendra September 2014...
  • Page 2 Hybrid or Bi-Valent heat pumps 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. 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.
  • Page 3: The Control Box

    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.
  • Page 4 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.
  • Page 5 Buffer 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.
  • Page 6 Wiring and Power Supply Information Power The EHS system needs 2 power supplies: One connects into the outdoor unit, 20 Amp for the 9kW 32 Amp for the size 16 The one for the control box is 3 Amp and wires into the top the breaker (mcb) in the box Communication cable This must be run from the outdoor unit to the control box.
  • Page 7 NOTE terminal positions are relevant for this relay only. The terminals are both normally open; they close when relay is powered. In cold weather B4 sends a live signal out from the heat pump to the relay, when relay is switched on this live is sent to the 2 port and the boiler runs.
  • Page 8 www.samsungehs.co.uk ©G Hendra September 2014...
  • Page 9 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?
  • Page 10: Start-Up Procedure

    Start-up Procedure: Filling and flushing: The Building Regulations for England and Wales, Part L, 2006, now require a central heating system to be cleaned and inhibited chemically whenever the 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.
  • Page 11: Setting The Clock

    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.
  • Page 12 Electrically testing the unit: It 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 test button together for 6 seconds. The controller will display TEST.
  • Page 13: Starting The Heat Pump

    Test 1 To Avoid further problems we 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 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.
  • Page 14 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.
  • Page 15 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 l / 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:...
  • Page 16: Field Settings

    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.
  • Page 17 +5 C but warning this will cost more money to run. 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.
  • Page 18 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.
  • Page 19: Warranty Registration Card

    This warranty covers only 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.
  • Page 20 Once received we will confirm receipt and start of the warranty period. I accept the terms of the Samsung warranty and confirm the system has been registered within 30 days of delivery. I also include a copy of the delivery note.
  • Page 21: Maintenance Procedure

    Maintenance Monobloc Systems The Samsung heat pump should be maintained at least once a year to comply with warranty and RHI. The warranty card also doubles up as a maintenance sheet. Maintenance procedure Stop the unit, clean the strainer or magnetic filter in accordance with manufacturer’s recommendations and replace it.
  • Page 22: Hot Water

    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. The radiator temperatures are lower than normal and will alter as the outdoor temperature changes.

This manual is also suitable for:

Rc160mhxea

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