Samsung 050JXYDEH, 090JXYDEH, 160JXYDEH, 120JXYDEH, 140JXYDEH Installation And Maintenance 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