Ariston Nuos Split Flex 150L - Internal Unit Construction Features; External Unit Construction Features; Electrical Diagram

Heat pump water heater – TECHNICAL INFORMATION FOR INSTALLERS
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2.2 Internal unit construction features
fig. 1-2.
FIG.1
MODEL 150 LITRES
MODEL 200 LITRES
A
750
1050
B
500
800
C
1200
1520
D
Outlet hot water 3/4” pipe
E
Inlet cold water 3/4” pipe
F
Outlet gas pipe 3/8 “
G
Inlet gas pipe 1/4 “
H
Battery housing
I
Housing electrical connections and heating
element
L
Interface board
M
Condenser
N
Wall brackets
FIG.2
MODEL 270 LITRES
O
Battery housing
P
Interface board
Q
Condenser
R
Inlet cold water 3/4” pipe
S
heating element housing
T
feets with adjustable height
U
Inlet gas pipe 1/4 “
V
Outlet gas pipe 3/8 “
Z
Electrical connections housing
Y
Outlet hot water 3/4” pipe
2.3 External unit construction features
fig. 3.
A
Fan
B
Electrical connections housing
C
Gas connections
D
Gas connections housing cover
E
Hole for condensation drain
2.4 Electrical diagram
fig. 4.
SYMBOL
DESCRIPTION
A
Power supply, cable not supplied with the product
B
Batteries
C
Interface board
D
Heating element
E
NTC sensor for heating element zone
F
Impressed current anode
Earth connection
H
Serial connection board
I
Mainboard
L
Operation condenser
M
Compressor
N
Fan
O
Defrost four way valve
P
Safety pressure switch
Q
NTC sensor for hot water pipe zone
R
NTC sensor for evaporator and inlet air
S
Probe connection cable, supplied with the product
T
Electronic filter
EDF
HCHP signal (EDP) – cable not supplied with the
product