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Maintenance of Monobloc Systems
The Samsung heat pump should be maintained at least once a year to comply with warranty and RHI.
Please leave maintenance
records with the homeowner, they may need them if they have a warranty claim. See end user manual for details.
Maintenance procedure
Stop the unit, clean the water filters, shut the valve, undo the back
and pull the strainer out 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 0-3 bar.
We need to
test the operation of the unit
against the hot water cylinder. So first we need to draw off 50 litres 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
DHW power
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 48°C cylinder temperature without using the immersion heater.
While running, check the outdoor unit for damage & 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 & sensor is above the immersion
and at least 100mm into the tank and the overheat thermostat is
set to 70°C. On a Telford cylinder set the stat to 5.
Press the mode button until a bath symbol shows 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.
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