12
13
Installation
Maintenance
The Hitachi heat pump should be maintained at least once a year to comply with warranty and RHI.
You must log your maintenance at
www.freedomhp.co.uk
for the 7-year warranty.
Installing 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’s.
The unit must have adequate drainage away from the unit; it can
produce up to 6 L / hour of condensate. 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.
There is an optional draining kit, see picture, which you can use
but we recommend draining straight into the ground.
Dimensions Split:
Size 2 -
600mm (h) 792mm (w) 300mm (d) 46kg
Size 3 -
800mm (h) 950mm (w) 370mm (d) 49kg
Size 4, 6, 8 and 10 - 1380mm (h) 950mm (w) 370mm (d) 116kg
Dimensions Monobloc:
Size 3 -
800mm (h) 1252mm (w) 370mm (d) 115kg
Size 4 -
1380mm (h) 1252mm (w) 370mm (d) 135kg
Size 6 -
1380mm (h) 1252mm (w) 370mm (d) 144kg
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.
300 or more
300 or mor
e
1500 or mor
e
600 or more
Hot Water Cylinder
Check electrical connections & check the tank temperature sensor is above
the immersion heater and fixed properly and the overheat thermostat is set
to 70°C. On a Telford cylinder set the stat to 5.
Maintenance procedure
Stop the unit, clean the water strainer in the unit you need a spanner and circlip pliers for this.
On Monoblocs 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 1.5 bar,
We need to test the operation of the unit against the hot water cylinder. So first we need to draw off 50 liters 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 on front screen scroll left
highlight Heating press power to turn this off.
Scroll right highlight DHW press power turn DHW on. The unit should now run in DHW and open the 3 port to the cylinder,
To test cylinder and flow temp press menu, operational information ok, select DHW ok all temperatures are listed. Log the
temperature of the flow, the flow rate, the temperature of the air as it enters the coil and the temperature of the air in the garden.
The heat pump should be able to achieve 50°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 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
OUTLET
OUTLET
INLET
INLET
Ball in closed position
Ball in cleaning position
Ball ready to clean-cut
with flush. An extra 22º is
needed to rotate the ball.
At this position, the mesh
can be removed from the
filter ball for maintenance
tasks
Drain Pipe
Extruded Portion
Drain Boss
Rubber Cap
Drain hole of Base
