10
2.7. HEPAC check list
Check that
• the connections are tight and there are no leaking valves
• the expansion tank on the heating system and fill side is properly installed
• the overflow pipe on the shut-off valve and the pressure gauge on the heating system
have been properly installed
• the heating system has been filled and deaerated appropriately
• the ground loop has been installed, filled and deaerated appropriately
• the foremost valve is open and the rear valve is shut
• the unused solar assemblies on top of the heat pump have been plugged
2.8. Electrical installation and outdoor sensors
Only qualified electricians are permitted to carry out electrical work on the heat pump according to general regulations.
Device
V 7.0
V 9.0
V 10.5
V 13.0
V 15.0
V 20.0
V 30.0
Electrical connection
400V 3N~
400V 3N~
400V 3N~
400V 3N~
400V 3N~
400V 3N~
400V 3N~
Fuse size (part)
A 3 x 16 Slow 3 x 16 Slow 3 x 16 (20)
Slow
3 x 16 (20)
Slow
3 x 16 (20)
Slow
3 x 20
Slow
3 x 25
Slow
Electrical connection
230V 1N~
230 1N~
230 1N~
Fuse size
A 25 Slow
32 Slow
32 Slow
The Lämpöässä heat pump is connected to a 400 V (50 Hz) or 230 V (50Hz) electrical network. The Lämpöässä heat
pump has been fitted with an integrated electrical switchboard to which is permanently powered. A plastic-coated wire
is used as a supply line. This wire travels to the master switch in a casing pipe.
DEVICE
TERMINAL BLOCK NUMBER
CONDUCTOR TYPE
Outdoor sensor TMO
T1
2 X 0.7 mm
2
Room sensor TMR
T3
2 X 0.7 mm
2
Size of the feeder cable *
(part)
5 X 2.5 mm
2
(6.0
mm
2
)
* If installation conditions require long cabling, a 5 x 6 mm
2
cable should be used in models V 10.5-30.0.
The master switch must be installed before any other installation takes place. In order for the outdoor sensor to
recognise weather conditions as effectively as possible, it is very important that it be placed in the correct location. The
outdoor sensor should be placed on the north-western or northern side of the building to avoid the effects of the mor-
ning sun. If the sensor cannot be placed as recommended, ensure that it is protected from direct sun light.
The sensor is placed approximately 2/3 of the way up the wall of the building near the corner. A sensor should not be placed
under a roof, in a place protected from the wind or over a vent, doors or windows where the temperature is not the normal
outdoor temperature.
In order for the room sensor to detect average indoor temperatures as reliably as possible, it must be placed in a central
and open location, for example a hallway between several rooms or the staircase. String a bipolar electrical line (at
least 0.5 mm
2
) from the heat pump to the room sensor. Position the room sensor approximately 2/3 of the way up the
wall. Connect the room sensor lead to the heat pump. Please note! Leads must be correctly connected in order for the
heat pump to operate.
In order to obtain the best results, the room sensor and leads can be tested in diffirent locations before being perma-
nently installed.
