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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.
You should expect your maintenance engineer to complete the following procedures and record commissioning data with every annual
maintenance.
You must log your maintenance at
www.freedomhp.co.uk
for the 7-year warranty.
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.
Maintenance Form: Year 1
The engineer should leave a copy of this form with the home owner as evidence of an annual service to keep up with the warranty.
Heating Mode Commissioning Data
What type of system do you have?
Pre-plumbed / Separate Cylinder
Is there a Header, Buffer or Heat Exchanger installed?
You need to measure the following and record the data:
Flow temperature at Heat Pump
Measure with pipe thermometer
Return temperature at Heat Pump
Flow temp into header / plate
Return from header / plate
Flow temp out of header /
plate to heating
Return from Heating into
header / plate
Flow rate from flow meter
Air temp at the back of the unit
Ambient air temperature
Measure from the garden
Hot water cylinder model No.
Cylinder water temp at start-up
Measure from the remote controller
Cylinder water temp after 30mins
Measure from the remote controller
Water flow temp at cylinder
Measure with pipe thermometer
Water return temp at cylinder
Measure with pipe thermometer
Flow Rate
Measure from the flow meter
Hot Water Mode Commissioning Data
You must be running the heat pump in hot water mode for this section
Pump Z1
Header,
Buffer or
Heat
Exchanger
Pump HP
H
HW
Flow and Return
at Heat Pump
Flow Rate
Return from
Header
Flow out of
Header
Flow into
Header
Return from
Heating
