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Product description
System Overview – PACi and PACi NX systems
NX
Single-connection
3
A
B
C
D
E
F
1 With all PACi and PACi NX outdoor units only 1-to-1 installations are allowed.
System example for PACi and PACi NX single-connection system
Outdoor unit /
indoor unit wiring
PACi outdoor unit
Piping
36
system only
1
AHU Kit enclosure (complete)
AHU system (field supplied)
Remote controller (integrated in AHU Kit enclosure)
Outdoor unit
Liquid piping (field supplied)
Gas piping (field supplied)
PAW-280PAH2
AL1
PV
ºC
ATU
OUT
SV
ºC
SET
Wiring for
temperature sensors
Air Handling Unit
Strainer (liquid pipe & gas pipe)
min. Ø 25.4 mm (field supplied)
G
Thermistor for liquid pipe (E1)
H
Thermistor for heat exchanger pipe middle (E2)
I
Thermistor for suction air (TA)
J
Inter-unit wiring
K
Magnetic relay for operating the blower (field sup-
plied)
PAW-280PAH3
AL1
PV
ºC
ATU
OUT
SV
ºC
SET
Outdoor unit /
Wiring for
indoor unit wiring
temperature sensors
PACi NX outdoor unit
Piping
Air Handling Unit
AHU Kit – Installation Instructions – 11/2021
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