Technical data

N-EM1 N-EM1 N-EM1
Zone 1
N-THC
N-CM
master
Zone 2
N-THC
Zone 3
N-THC
Zone 4
N-THC
Zone 5
N-THC
master master master
System architecture
82
31
156
Dimensions
i-KI(R) MTD
HFC 410Ai-KI(R)_MTD_0011_0061_201307_EN
22
N-CM CASCADE MANAGEMENT KEYPAD
The N-CM keypad allows cascaded connection of up to 4 heat
pumps to increase capacity delivered in applications with multi-
ple occupied areas, such as hotels, schools, apartment blocks,
offices and shopping centres.
The units are managed in master-slave mode, with the master
unit responsible for processing the information and sending it to
the slave units.
This ensures fine control over the capacity delivered, without
decreasing performance, and more precise system sizing.
NADISYSTEM can determine how many cascaded units are
needed to guarantee domestic hot water production, all or just
one, according to requirements.
The controller also balances compressor operating hours based
on time logic, activating the units in rotation, and where neces-
sary excluding any units that are momentarily out of service,
without interrupting operation of the cascade as a whole.
If the malfunctioning unit is the master, the operating parame-
ters are transferred to another unit in the cascade, thus restor-
ing partial operation.
The N-CM keypad can also display the operation of each heat
pump connected to the cascade and the N-THC room terminals
assigned to the zone in question, up to a maximum of 5 zones.