General
Pipe installation must be carried out in accordance with
current norms and directives.
JÄSPI Inverter Nordic can only operate up to a return
temperature of about 55 °C and an outgoing temperat-
ure of about 65 °C from the heat pump.
JÄSPI Inverter Nordic is not equipped with external shut
off valves on the water side; these must be installed to
facilitate any future servicing. The return temperature is
limited by the return line sensor.
Water volumes
Depending on the size of JÄSPI Inverter Nordic, an
available water volume is required to prevent short op-
erating times and to enable defrosting. For optimal op-
eration of JÄSPI Inverter Nordic, a minimum available
water volume of 10 litres times the size number is recom-
mended. E.g. JÄSPI Inverter Nordic-12: 10 litres x 12 =
120 litres.
NOTE
The pipe work must be flushed before the heat
pump is connected, so that any contaminants
do not damage the components.
Pipe coupling heating medium
circuit
■
The heat pump must be vented by the upper connec-
tion (XL1) using the venting nipple on the enclosed
flexible hose.
■
Install the enclosed particle filter before the inlet, i.e.
the lower connection (XL2) on JÄSPI Inverter Nordic.
■
All outdoor pipes must be thermally insulated with at
least 19 mm thick pipe insulation.
■
Install shutoff and drain valves so that JÄSPI Invert-
er Nordic can be emptied in the event of prolonged
power failures.
■
The supplied flexible hoses act as vibration dampers.
The flexible pipes are fitted so an elbow is created,
thus acting as vibration damping.
Charge pump
The charge pump (not included in the product) is
powered and controlled from the indoor module/control
module. It has a built-in anti-freezing function and must
therefore not be switched off when there is a risk of
freezing.
At temperatures below +2 °C the charge pump runs
periodically, to prevent the water from freezing in the
charge circuit. The function also protects against excess
temperatures in the charge circuit.
Pressure drop, heating medium
side
JÄSPI Inverter Nordic-8, -12, -16, -20
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0 0,05 0,1 0,15 0,2 0,25 0,3 0,35 0,4 0,45 0,5 0,55 0,6 0,65 0,7 0,75 0,8 0,85 0,9
Tryckfall
[kPa]
Flöde [l/s]
Tryckfall F2120
Pressure drop
(kPa)
Flow
(l/s)
-12/-16/-20
-8
Heat insulation
LEK
Heat insulation
JÄSPI Inverter Nordic
Chapter 4 |
Pipe connections
20
4 Pipe connections