Samsung 050JXYDEH Manual

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Air Source Heat Pump
Installation and Maintenance Manual
Model Numbers:
MIM-E03 A and B N
AE 050-090-120-140-160JXYDEH

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The Outdoor Unit (boiler)
Position the outdoor unit so that the air flows into an open area, where there are no
plants and animals
Install the outdoor unit on a flat, stable surface, the unit needs to be securely
mounted at least 100mm off the ground on rubber feet. 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. If you are installing the unit at height you can install a drain pan under the unit
but its best to let the unit drain into the ground.
Dimensions:
Size 16 - 1420mm (h) 940mm (w) 330mm (d) 103kg
Size 9 - 998mm (h) 940mm (w) 330mm (d) 75kg
Size 5 - 798mm (h) 880mm (w) 310mm (d) 59kg
The space around the unit is very important, allow:
300mm 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.

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What comes with the unit and what you will need:
Below is a list of the components which comes with fast connect,
Flexible hoses the water connections to the back of the
unit are 1 inch BSP male. We recommend connecting the
water pipework with flexible hoses for ease of maintenance
and to avoid any vibration from the unit going into the
house. All external pipework has to be insulated to meet
MCS standards.
Mounting feet, the outdoor units need to be mounted
100mm above the ground, we recommend using rubber feet with
unistrut channel. These come with mounting bolts included.
An expansion vessel, pressure gauge, pressure relief valve
and filling loop
In pressurised heating systems most heating engineers use a Robokit
which combines all these components into one box. The expansion
vessel is sized exactly the same way as when using a boiler. If you
want to run the system open vented you don’t need these components,
the Samsung units are happy to run at anywhere from 0 – 3Bar
pressure
Diverter valves
If you require multiple heating zones you need to supply a 2 port diverter
valves per zone.
Glycol / anti-freeze
In Monobloc heat pumps the water goes outside the building. The unit can protect
itself from freezing up, but if the power goes off there is a risk that the unit will freeze
causing damage. To prevent this, we recommend putting propylene glycol mixture in
the system. It is important that the glycol concentration is
adequate to protect the unit, if the unit freezes up there
will be no warranty. Manufacturer dependant, a mix of
25% is normal for UK conditions.
Adding too much glycol is not a good idea as it increases the water pump power and
slightly reduces the capacity of your system.
The Cylinder:
If you want to heat water with a heat pump you need a dedicated heat pump cylinder.
The cylinder needs to be installed less than 15m from the control box to allow for the
temperature sensor cable.
Cylinders can only be used IF the coil area is more than 2.5m^2. Smaller coils are
not acceptable and cannot be used. Please do not attempt to utilize a standard
central heating, non-heat pump optimized cylinder. Cylinders can be pressurised or
open vented.

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Fast Connection kit page 1 of 4
The fast connection kit comes with all the accessories you need except a robokit and
Cylinder. The idea is the fast connect kit goes on the wall inside and is pre wired, and
commissioned. The plumber connects the cylinder, the heat pump and the heating
circuit.

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Fast Connect Page 2 of 4
Operation:
Hot water is controlled using the Samsung cylinder sensor and controller supplied.
This controller has inbuilt time clock control and includes both a daily and weekly
legionella sterilisation function.
The system can be either open vented or pressurised.
The cylinder must have a coil at least 2.5m^2
Cylinder size normally allows 55l of water per person per day.
We would recommend sizing the heat pump to recover the cylinder in 1 hour.
It is possible to connect this system to solar PV powered immersion heaters (I boost,
Immersun etc.)
Heating is controlled using a wall mounted thermostat / time clock (field supplied).
There are no limits to the number of heating zones which can be connected to this
system. This system shows 2 heating zones. (Pump 2 and Pump 3)
Each zone has its own thermostat / timer which drives a dedicated zone valve. The
zone valve will control the pump and send a run signal to the heat pump.
The system will run in a fully adjustable weather compensated mode adjusting the
water temperature to suit the ambient conditions.
We recommend a buffer; low loss header or heat exchanger is used to simplify the
installation.

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Wiring Fast Connect with one zone heating page 3 of 4
The sparky connects the tank thermostat sensor 15m long (can’t be extended).
The immersion heater to the cylinder, the thermostat or run signal input
The 2 core F1F2 cable to the outdoor unit (its 10m long) and a power supply 16
Amps

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Wiring Fast Connect with multi heating zones page 3 of 4
The sparky connects the tank thermostat sensor 15m long (can’t be extended).
The immersion heater to the cylinder, the thermostat or run signal input
The 2 core F1F2 cable to the outdoor unit (its 10m long) and a power supply 16
Amps

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Combi hybrid with fast connection kit:
The fast connect board goes outside, it’s in a waterproof enclosure, 600 high x 800
wide x 300mm deep. The fast connection kit has energy meters installed so the
installer needs no other parts. Just T into the heating circuit and modify the wiring as
above.

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Combi hybrid with fast connection kit wiring:
Disconnect the stat from the boiler and wire it to the fast connect.
Run a cable from fast connect to the boiler.
Connect a single power supply to the fast connect board.
Run a supply from fast connect to the heat pump outdoor unit
Connect the pre wired comms cable to the outdoor unit.

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Start-up Procedure:
Filling and flushing, when installing any Heat pump we insist on a thorough
system flush prior to connection in line with the Building Regulations for England and
Wales, Part L, 2006.
Using the power flusher fill the system with water and 25% Propylene Glycol, there is
no pressure sensor in the unit so we can operate from open vented to 3 bar
maximum.
Setting up the cylinder immersion heater
The immersion heater has its own stat; this MUST be set to
70C. This is to avoid the immersion heater cutting out before
the legionella function is complete
Powering Up
Makes sure all your room thermostats are off and all underfloor run signals are
off.
Apply power to indoor control box first then the outdoor unit. Turn on all the breakers
in the fast connect.
The remote controller will be dead for about a minute, after that it will come to life.
You will see 00 or 01 on the remote controller screen for 90 seconds. If 01 continues
to show the outdoor unit is not powered up.
Setting the Clock and Backlight
1. Press User Set once 1 shows on the screen.
2. Press up until 2 shows,
3. Press right twice, Year will show, use up to change
year Press Set, 22 appears,
4. Press right Month will be flashing, adjust Month with
up,
5. Press right, day will be flashing, adjust day with up.
6. Press Set. 22 shows, press up once, 23 shows,
7. Press right, day and time are shown, day will be flashing, use up to adjust day,
8. Press right, AM or PM will be flashing, use up to adjust AM, PM or both (24-
hour clock)
9. Press right, hour will flash, press up to adjust hours
10. Press right, minutes will flash, use up to adjust minutes.
11. Press Set.
12. 23 shows, Press left 2 flashes, press up twice 4 flashes,
13. Press right, 4 0511 shows, 05 flashes.
14. Press up until 30 flashes,
15. Press Set,
16. Press ESC to finish and return to normal screen.