Ariston 80 L User manual

Technical Manual
H eat P ump W ater H eater - S plit
01/09/2011 Ver.1.2
80 l 100 l 110 l
Because of continuing product improvements, We reserve the right to change specifications without prior notice.
All maintenance operations and interventions should be performed by qualified personnel (i.e. with the necessary requirements
as outlined in the applicable norms in force).

2
TABLE OF CONTENTS
ONSTRU TION FEATURES
TE HNI AL LABELS
ELE TRI AL ONNE TIONS
TE HNI AL DATA TABLE
OPERATIONAL URVES
EXTERNAL UNIT OMPONENTS
• Sensors test table
INTERNAL UNIT OMPONENTS
HEAT PUMP START UP PRO EDURE
FUN TIONING MODES
OPTIONAL FUN TIONS
TROUBLESHOOTING
• Displayed faults
• Low gas checking
• Malfunctioning
APPENDIX A: INSTALLATION SITE INSPE TION
• Available installation accessories
APPENDIX B: ROUTINE MAINTENAN E

3
CONSTRUCTION FEATURES
The product is designed to ensure maximum energy saving without compromising final user comfort: the promise is to deliver
domestic hot water regardless the external conditions. Therefore the heat pump group preferably works without the electric
group aid; the heating resistance is switched on only when strictly necessary in order to reach the desired set point temperature
in time; the main board controls the heat pump and resistance state and determines when they shall be
switched on or off. The split configuration ensures space saving and noise isolation; moreover its layout avoids cooling
effect, ventilation constraints and permeability problems.
Internal unit c nstructi n features
MODEL 80 L MODEL 100 L MODEL 110 L
A 860 1002 1085
B Outlet hot water 1/2” pipe
Inlet hot water 1/2” pipe
D Inlet gas pipe 3/8 “
E Outlet gas pipe 1/4 “
F Gas connections housing cover
G Electrical connections, electronic boards and heating element housing
H Serial port housing
I ondenser
J Interface board
K Wall bracket

External unit c nstructi n features
The following accessories are included: Shielded
water of the external unit, d
rainage pipe for condensation water
documents, two 1/2” dielectric coupling, s
afety valve (8 bar)
Internal unit technical label
External unit technical label
A Fan
B Electrical connections housing
Gas connections
D Gas connections housing cover
E Hole for condensation drain
4
The following accessories are included: Shielded
sensor connection cable between units, c
onnection pipe for condensation
rainage pipe for condensation water
, wall hole protection,
Instruction manual and warranty
afety valve (8 bar)
, s
crews and rawlplugs for wall bracket
TECHNICAL LABELS
Descripti n
A model
B tank capacity
C serial no.
D
power supply voltage. frequency. maximum absorbed power
E
max./min. pressure of the refrigeration circuit
F tank protection
G absorbed power – heating element mode
H marks and symbols
I thermal power yielded in heat pump mode
L max./min. power in heat pump mode
M
type of refrigerant and charge
N maximum tank pressure
Descripti n
model
-
-
-
-
-
-
-
Level of protection
-
Type/quantity of refrigerant
-
Design pressure of the circuit
Serial number
onnection pipe for condensation
Instruction manual and warranty
crews and rawlplugs for wall bracket
.
power supply voltage. frequency. maximum absorbed power
max./min. pressure of the refrigeration circuit

5
ELECTRICAL CONNECTIONS
General electrical diagram
External unit (Heat Pump) electrical connections
SYMBOL DESCRIPTION
A Power supply
B Electronic filter
Interface board
D Heating element
E NT sensor for
heating element
zone
F Impressed current
anode
Ground connection
H Serial connection
board
I Mainboard
L Operation
condenser
M ompressor
N Fan
O Defrost four ways
valve
P Safety pressure
switch
Q hot water NT
sensor
R evaporator and inlet
air NT sensor
S Sensor connection
cable, supplied with
the product

6
TECHNICAL DATA TABLE
Description Unit of
measurement 80 L 100 L 110 L
INTERNAL UNIT
Rated tank capacity l 80 103 110
Insulation thickness mm ≈ 41 ≈ 41 ≈ 41
Type of internal tank protection enamelling
Type of corrosion protection titanium impressed current anode + disposable magnesium anode
Maximum operating pressure MPa 0,8
Diameter of hydraulic connections 1/2 M
Diameter of gas connections 1/4” & 3/8” flare type
Minimum water hardness °F 12 (with water softener, min 15°F)
Weight when empty kg 32 35 38
Heating element power W 1200 1200 1200
Protection rating IP24 IP24 IP24
Min. temperature of room of installation ° 1 1 1
EXTERNAL UNIT
Heat rating (*) W 1500
Average electrical power consumption (*) W 510
Max. electrical power consumption (*) W 750
Refrigerant connection diameter 1/4 & 3/8 flare type
Weight when empty kg 27
Standard air flow rate m3/h 1100
Sound power dB(A) 55
Level of sound pressure at 5 m dB(A) 39
Max. pressure of refrigerating circuit (low-
pressure side) MPa 1.2
Max. pressure of refrigerating circuit (high-
pressure side) MPa 2.7
Protection rating IP24
Minimum air temperature (***) ° -5
Maximum air temperature (***) ° 42
Gas connection maximum length m 6
Gas connection maximum drop m 3
Quantity of R134a refrigerant fluid g 700
PERFORMANCES Unit f
measurement 80 L 100 L 110 L
OP (*) 2,9 2,9 2,9
Heating time with heat pump (*) h:min 2:45 3:26 3:42
Heating energy consumption (*) kWh 1,20 1,53 1,64
Max. amount of hot water
in a single intake V40 (**)
Delivered at 55° l 95 130 144
Delivered at 62° l 113 152 169
Max. water temperature with heat pump ° 62 (55 factory default) 62 (55 factory default) 62 (55 factory default)
Max. water temperature with heating
element ° 75 (65 factory default) 75 (65 factory default) 75 (65 factory default)
QPr (over 24h) kWh 0,46 0,50 0,50
POWER SOURCE
Voltage / max. power consumption (*) V / W 220-240 single-phase / 1950
Frequency Hz 50
Max. current consumption A 8,5
(*) values obtained with air temperature of 7° , 87% relative humidity; input water temperature 15° , setting temperature 55 ° , in
compliance with EN255-3 norm.
(**) Performance measured for input water temperature 15° .
(***) outside of the heat pump’s interval of operation, heating of the water is ensured by the heating element..
Average value obtained on a significant number of products.

7
OPERATIONAL CURVES
onditions: inlet water temperature 15° , set water temperature 55° , air medium humidity 87% - Heating up Energy based on
air temperature (EN 255-3).
80 LITRES Mode: GREEN
Tair [°C] tH-Heating-up time [h:mm:ss] EH-Heating-up energy [kWh] COPt Qpr
-5 4.40.50 1,83 1,9 0,456
2 3.46.17 1,54 2,3 0,456
7 2.44.26 1,19 2,9 0,456
20 2.02.54 0,96 3,5 0,456
30 1.37.35 0,82 4,1 0,456
42 1.36.00 0,80 4,1 0,456
Max. am unt f h t water in a single intake
V40 with water at 55° 95 l (ratio 1,2)
V40 with water at 62° 113 l (ratio 1,41)

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100 LITRES Mode: GREEN
Tair [°C] tH-Heating-up time [h:mm:ss] EH-Heating-up energy [kWh] COPt Qpr
-5 6.10.22 2,34 1,8 0,504
1 4.45.40 1,90 2,2 0,504
7 3.26.52 1,53 2,9 0,504
20 2.48.52 1,33 3,6 0,504
30 2.07.37 1,09 4,1 0,504
42 1.55.49 1,03 4,1 0,504
Max. am unt f h t water in a single intake
V40 with water at 55° 130 l (ratio 1,3)
V40 with water at 62° 152 l (ratio 1,52)

9
110 LITRES Mode: GREEN
Tair [°C] tH-Heating-up time [h:mm:ss] EH-Heating-up energy [kWh] COPt Qpr
-5 6.48.38 2,62 1,9 0,504
1 4.54.47 2,01 2,2 0,504
7 3.41.30 1,64 2,9 0,504
20 2.57.38 1,43 3,6 0,504
30 2.17.03 1,20 4,2 0,504
42 2.10.23 1,16 4,2 0,504
Max. am unt f h t water in a single intake
V40 with water at 55° 144lt (ratio 1,31)
V40 with water at 62° 169lt ( ratio 1,54 )

10
THERMODYNAMIC CYCLE
The heat pump water heater does not
directly heat water using electrical energy,
but makes a more rational use of the latter
to obtain the same result in a more efficient
manner, namely by consuming approx. 2/3
less water.
The efficiency of a heat pump cycle is
measured by the oefficient of Performance
( OP), i.e. the ratio between the energy
supplied to the appliance (in this case, the
heat transferred to the water to be heated)
and the electrical energy used (by the
compressor and the appliance's auxiliary
devices). The OP varies according to the
type of heat pump and to its relative
conditions of operation.
For example, a OP value equal to 3
indicates that for every 1 kWh of electrical
energy used, the heat pump supplies 3 kWh
of heat to the medium to be heated, of
which 2 kWh are extracted from the free
source.