Ground Water System; General; Pipe Connections; Outline Diagram - Nibe AXC 40 Installer Manual

Ground water system

General

With AXC 40 a ground water pump can be connected
to the heat pump if the software controlled output (AUX
output) is used for something else.
This connection enables the use of ground water as
heat source. The ground water is pumped up to an inter-
mediate heat exchanger. An intermediate heat ex-
changer is used to protect the heat pump's exchanger
from dirt and freezing. The water is released into a bur-
ied filtration unit or a drilled well.
The ground water pump runs at the same time as the
brine pump.
From software version 8233R2, the groundwater pump
can be controlled with an analogue control signal from
0-10 V.
COMPATIBLE PRODUCTS
• S1155
• S1255

Pipe connections

TEMPERATURE SENSOR
• Temperature sensor, brine supply line (BT57) is in-
stalled on the supply line to the climate system.
• Temperature sensor, brine return line (BT58) is in-
stalled on the return line to the climate system.
Install the temperature sensors using cable ties, together
with the heat conducting paste and aluminium tape.
Then insulate with the enclosed insulation tape.
AXC 40
NOTE
Sensor and communication cables must not
be laid near power cables.

Outline diagram

Real installations must be planned according to applic-
able standards. More system principles can be found at
nibe.eu.
EXPLANATION
EP12 Ground water system
AA25 AXC 40
EP4 Heat exchanger, groundwater
HQ40 Particle filter
GP3 Groundwater pump
EB100 Heat pump
BT57 Brine sensor, supply line
BT58 Brine sensor, return line
-EP12
-EP12-AA25
-EP12-EP4
-BT57
-EP12-HQ40
-BT58
-EP12-GP3
Chapter 7 | Ground water system
-EB100
25