CLIVET WSAN-YES 18.2 Reference manual

MANUAL
FOR INSTALLATION,
USE AND MAINTENANCE
WSAN-YES
18.2-35.2

2
Dear Customer,
We congratulate you on choosing these product.
Clivet is being working for years to offer systems able to assure the maximum comfort for long
time with high reliability, efficiency , quality and safety. The target of the company is to offer
advanced systems, that assure the best comfort, reduce the energy consumption, the installation
and maintenance costs for all the life-cycle of the system.
With this manual, we want to give you information that are useful in all the phases: from the
reception, to the installation and use until the disposal so that a system so advanced offers the
best procedure of installation and use.
Best regards and have a nice reading !
CLIVET Spa
The data contained in this manual is not binding and may be changed by the manufacturer without prior
notice. All reproduction, even partial, is prohibited. © Copyright - CLIVET S.p.A. - Feltre (BL) - Italia

3
WSAN-YES 18.2-35.2
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1General 4
2Riception 6
3Positioning 8
4Water connection 11
5Electrical connection 18
6Modbus 23
7Start-up 28
8Control 32
9Troubleshooting 40
10 Maintenance 47
11 Decommissioning 56
12 Residual risks 57
13 Drawings 59
14 Technical data 61

4WSAN-YES 18.2-35.2 M0ST10N19-00
Manual
The manual allows a correct unit installation, use
and maintenance.
Pay particular attention to:
 Warning / prohibitions / danger
identifies operations that must not be carried out,
that compromises the operating of the unit or may
cause damages to persons or things.
It is advisable to read it carefully so you will save
time during operations.
Follow the indications so you will not cause
damages to things and injuries to people.
Original instruction
The Italian text is the original instruction.
Other languages are translations of the original
instructions.
Preliminaries
Only qualified personnel can operate on the unit,
as required by the regulation in force.
Risk situations
The unit has been designed and created to prevent
injures to people.
During designing it is not possible to plane and
operate on all the risk situations.
Read carefully the "Residual risk" section where are
reported all the situations which may cause
damages to things and injuries to people.
Installation, starting-up, maintenance and repair
required specific knowledge; if they are carried out
by inexperienced personnel, they may cause
damages to things and injuries to people.
Intended use
Use the unit for:
 cooling/heating water or a water and glycol
 mix within limits defined in the technical bulletin
and on this manual.
Any other use does not involve the manufacturer in
any commitment or obligation.
Installation
Outdoor installation
The positioning, the hydraulic, refrigerating and
electrical system and the air ducting must be
determined by the system designer according to
the local regulations.
Follow local safety regulations
Verify that the electrical line characteristics are in
compliance with data indicated on the unit serial
number label.
Maintenance
Schedule periodic inspections and maintenances in
order to avoid or reduce repairing costs.
Turn the unit off before any operation.
Modification
All unit modifications will invalidate the warranty
and the manufacturer responsibility.
Breakdown/Malfunction
Disable the unit immediately in case of breakdown
or malfunction.
Contact an assistance service centre authorized by
the manufacturer.
Use only original spares parts.
Using the unit in case of breakdown or
malfunction:
 voids the warranty
 may compromise the safety of the unit
 may increase time and repair costs.
User training
The installer has to train the user on:
 start-up / shutdown
 set points change
 standby mode
 Maintenance
 what to do / what not to do in case of
breakdown
1GENERAL

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WSAN-YES 18.2-35.2
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Data updating
Continuous product improvements may imply
manual data changes.
Visit manufacturer web site www.clivet.it for the data
updating
Information for the User
Keep this manual with the wiring diagram in an
accessible place for the operator.
Note the unit label data so you can provide them
to the assistance centre in case of intervention
request (see "Unit identification" section”).
Provide a unit notebook that allows to note and
track any interventions carried out on the unit
making it easier to suitably note the various
interventions and aids the search for any
breakdowns.
In case of breakdown or malfunction:
 immediately deactivate the unit
 contact an assistance service centre authorized
by the manufacturer.
Ask to the installer to be trained:
 start-up / shutdown
 set points change
 standby mode
 maintenance
 what to do / what not to do in case of
breakdown
Unit identification
The serial number label is positioned on the unit,
generally next to the electrical panel, and allows
you to indentify all the unit features.
The serial number label it reports the regulations
indications such as:
 Type of unit
 serial number (12 characters )
 year of manufacture
Serie
Size
Serial number
Year of manufacture
Wiring diagram
Physical characteristics of the R32 refrigerant
Safety class (ISO 817) A2L
GWP 675
LFL Low flammability limit 0.307 kg/m3 @ 60°C
BV Burning velocity 6,7 cm/s
Boiling point -52 °C
GWP 675 100 yr ITH
GWP 677 ARS 100 yr ITH
Self-ignition temperature 648 °C
 wiring diagram number
 electrical data
 Type of refrigerant
 Charge of refrigerant
 manufacturer logo and address
The serial number label has not to be removed for
any reason.
It contains fluorinated greenhouse gases
Tiype of refrigerant R32
Characteristics of R32 refrigerant:
 minimum environmental impact thanks to the
low Global Warming Potential GWP
 low flammability, class A2L according to ISO
817
 low combustion speed
 low toxicity
Serial number
It identifies uniquely each unit.
It identifies specific spare parts for the unit.
Intervention requests
Note data from the serial number label and write
them in the table sideways, so you will find them
easily when needed.
1GENERAL

6WSAN-YES 18.2-35.2 M0ST10N19-00
Delivery
Before accepting the delivery you have to check:
 that the unit hasn’t been damaged during
transport
 that the materials delivered correspond with that
indicated on the transport document comparing
the data with the identification label positioned
on the packaging.
In case of damage or anomaly:
 write down on the transport document the
damage you found and quote this sentence:
"Conditional acceptance — clear evidence of
deficiencies/damages during transport”
 Contest by fax and registered mail with advice of
receipt to supplier and the carrier.
 Any disputes must be made within the 8 days owing
the delivery. Complaints after this period are invalid.
Storing
Observe external packaging instructions.
In particular:
 minimum ambient temperature -20°C
(possible components damages)
 maximum ambient temperature +45°C
(possible safety valve opening)
 maximum relative humidity 95%
(possible damages to electrical components)
Handling
 Check that all handling equipment complies with the
local safety regulations (cranes, forklift trucks, ropes,
hooks, etc.).
 Provide personnel with personal protective equipment
appropriate for the situation, such as hard hat, gloves,
safety shoes, etc.
 Follow all safety procedures to ensure the safety of
personnel and materials.
 Verify unit weight and handling equipment lifting
capacity.
 Identify critical points during handling
(disconnected routes, flights, steps, doors).
 Suitably protect the unit to prevent damage
 Sollevamento con tubi e cinghie
 Lifting with balance
 Lifting with spacer bar.
 Align the barycenter to the lifting point
 Gradually bring the lifting belts under tension,
making sure they are positioned correctly.
 Before starting the handling, make sure that the
unit is stable.
Packaging removing
Be careful not to damage the unit.
Recycling and disposing the packaging material in
conformity with local regulations.
2RECEPTION

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2RECEPTION

8WSAN-YES 18.2-35.2 M0ST10N19-00
 Installation must be in accordance with local
regulations. If they do not exist, follow EN378
During positioning consider these elements:
 customer approval
 unit weight and bearing point capacity
 safe accessible position
 functional spaces
 spaces for the air intake/exhaust
 electrical connections
 max. distance allowed by the electrical
connections
 water connections
Functional spaces
Functional spaces are designed to:
 guarantee good unit operation
 carry out maintenance operations
 protect authorized operators and exposed
people
 Respect all functional spaces indicated in the
TECHNICAL INFORMATION section.
Positioning
Units are designed to be installed:
 EXTERNAL
 in fixed positions
 Put the unit in a position where any leaking gas
cannot enter buildings or stagnate in closed areas. In
the latter case, observe the rules for machinery
rooms (ventilation, leak detection, etc.).
Installation standards:
 install the unit raised from the ground
 bearing points aligned and leveled
 discharged condensation water must not cause
harm/danger to people and property
 the accumulation of snow must not cause clogging of
the coils avoid installations in places subject to
flooding
Limit vibration transmission:
 use anti-vibration devices or neoprene strips on
the unit support points
 install flexible joints on the hydraulic
connections
 install flexible joints on the hydraulic
connections
Protect the unit with suitable fence in order to
avoid access to unauthorised personnel (children,
vandals, etc.)
A correct circulation of the air is mandatory to
guarantee the good unit operating.
Avoid therefore:
 obstacles to the airflow
 exchange difficulties
 leaves or other foreign bodies that can obstruct
the exchange batteries
 winds that hinder or favour the airflow
 heat or pollution sources close to the unit
(chimneys, extractors etc)
 stratification (cold air that stagnates at the
bottom)
 recirculation (expelled air that is sucked in
again)
 positioning below the level of the threshold,
close to very high walls, attics or in angles that
could give rise to stratification or recirculation
phenomenons.
In the case of several units alongside each other,
consider increasing the temperature of the air
entering the coils (see image on next page)
Ignoring the previous indications could:
 energy efficiency decrease
 alarm lockout due to HIGH PRESSURE (in
summer) or LOW PRESSURE (in winter).
3POSITIONING
A
B
C
D
E
GF GG F
A = 800 mm
B = 500 mm
C = 800 mm
D = 500 mm
E = 6000
F = 500 mm
G = 500 mm
Warning: do not smoke or use open flames in this area
Functional spaces / Safety zone

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Pressure relief valve gas side
The installer is responsible for evaluating the
opportunity of installing drain pipes in compliance
with the local regulations in force (EN 378).
If ducted, the valves must be sized according to
EN13136.
Anti-vibration mounts - Option
Size 18.2 - 20.2 18.2 - 20.2 25.2 - 35.2 25.2 - 35.2
support points
Configuration standard with storage tank standard with storage tank
KIT PE PESM00003 PESM00004 PESM00005 PESM00006
W1 (codice) PAF 11 SPEC PAF 13 SPEC PAF 9 SPEC PAF 90 SPEC
W2 PAF 11 SPEC PAF 13 SPEC PAF 22 SPEC PAF 22 SPEC
W3 PAF 11 SPEC PAF 13 SPEC PAF 4 SPEC PAF 90 SPEC
W4 PAF 11 SPEC PAF 13 SPEC PAF 9 SPEC PAF 90 SPEC
W5 - - PAF 22 SPEC PAF 22 SPEC
W6 - - PAF 4 SPEC PAF 90 SPEC
Condensate
When a heat pump is in operation it produces a
considerable amount of water due to the defrosting
cycles of the external coil.
The condensate must be disposed of in order to
avoid damaging people and things.
3POSITIONING

10 WSAN-YES 18.2-35.2 M0ST10N19-00
Protection grilles
Option
PESM00007
PESM00008
3POSITIONING

11
WSAN-YES 18.2-35.2
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Hydraulic system
The pipes must be designed and manufactured to
limit pressure drops as much as possible, i.e.
optimise performance of the system. Keep the
following to a minimum:
 overall length
 number of bends
 number of vertical changes of direction
If the unit is to replace an existing unit, clean the
system thoroughly: see Sequence of operations on
the following pages .
Water quality
The water quality can be checked by qualified
personnel.
Water with inadequate characteristics can cause:
 pressure drop increase
 energy efficiency decrease
 corrosive symptom increase
Water features:
 within the limits indicated by table
Risk of freeze
 The unit must always be protected from freeze.
Otherwise irreversible damage may occur.
If the unit or the relative water connections can be
subject to temperatures close to 0°C:
 Mix water with ethylene glycol, or
 Safeguard the pipes with heating cables placed
under the insulation, or
 Empty the system in cases of long non-use
Anti-freeze solutions
Consider that the use of anti-freeze solution
determines an increase in a pressure drop.
Make sure that the glycol type utilized is inhibited
(not corrosive) and compatible with the hydraulic
circuit components.
Do not use different glicol mixture (i.e. ethylic with
propylene).
Water flow-rate
The design water flow-rate must be:
 inside the exchanger operating limits (see the
TECHNICAL INFORMATION chapter)
 guaranteed also with variable system conditions
(for example, in systems where some circuits are
bypassed in particular situations)
Minimum system water content
Minimum system water contents are given in the
‘General technical data’ section and they have to be
satisfied to stop the compressor from continuously
switching on and off.
Water filter
Use filter with mesh pitch:
0,5 mm (30 mesh)
 Must be installed immediately in the water input of the
unit, in a position that is easily accessible for cleaning.
 The filter never should be removed, this operation
invalidates the guaranty.
Provide a water treatment system if values fall
outside the limits.
 The warranty does not cover damages caused by
limestone formations, deposits and impurities from the
water supply and/or from failure to clean the systems.
4WATER CONNECTION
PH 7,5÷9
SO42-< 100 ppm
HCO3-/SO42-> 1
Total hardness 4,5 ÷ 8,5 dH
Cl-< 50 ppm
PO43-< 2,0 ppm
NH3 < 0,5 ppm
Free Chlorine < 0,5 ppm
Fe3+< 0,5 ppm
Mn++ < 0,05 ppm
CO2< 50 ppm
H2S< 50 ppb
Temperature < 65 °C
Oxygen content < 0.1 ppm

12 WSAN-YES 18.2-35.2 M0ST10N19-00
User side connection
 exchanger
 antifreeze heater
 water temperature probe
 drain
 water flow switch
 vent
 system loading safety pressure switch
 pump
 pressure relief valve
 storage tank
 shut-off valves
 filter
 flexible couplings
 piping supports
 exchanger chemical cleaning bypass
 system cleaning bypass
4WATER CONNECTION

13
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T outdoor T5
DHW storage compr. backup heater
24°C < t.o ≤ 30°C < 15°C OFF ON
24°C < t.o ≤ 30°C ≥ 15°C ON OFF
t.o > 30°C < 20°C OFF ON
t.o > 30°C ≥ 20°C ON OFF
Domestic hot water
Option.
The unit with DHW option is equipped with a 3-way
valve on board mounted (3DHW)
Each unit with DHW option must have its own DHW
storage.
The pumping unit is managed directly by the unit
with DHW option via clean contact (PUMP-N)
The management of domestic hot water takes
priority over the system.
In DHW production mode the compressors start
only if the DHW storage temperature is above a
minimum threshold (T5) (→ table).
The temperature threshold varies based on the
outdoor temperature. To prevent it from falling
below the minimum temperature, it is advisable to
install a backup electric heater on the DHW storage
(KAH2).
Verify that S12-2 is ON.
4WATER CONNECTION
DHW pump control wiring diagram.
T5 : compressors activation threshold for DHW S12-2 = ON
Tfa1: antifreeze temperature sensor
T5: DHW storage temperature sensor
Taf1
T5
Tw
DHW
storage

14 WSAN-YES 18.2-35.2 M0ST10N19-00
TW Probe - Total water
It must be installed on the supply of the unit, as far away
as possible.
SINGLE UNIT: antifreeze function
MODULAR UNIT: thermoregulation (see diagram below)
4WATER CONNECTION
Taf1
T5
Tw
Unit in modular configuration
 Maximum 16 total units.
 Maximum 4 units in the same water branch.
 The modular system is controlled by the MASTER unit (address=0), → Electrical connections
 All units must be electrically connected to each other con cavo schermato a 3 conduttori → Electrical
connections Each module must be configured with the water fittings for modular unit (AMOD).
 Each module can be equipped with inertial system storage tank (ACIMP).
 It is not possible to have a hydronic assembly installed on board.
 It is necessary to provide an external pumping unit, sized for the entire capacity of the modular system
( r esponsibility of the Customer ) . The pumping unit will be managed by the Master unit through a potential-free
contact and 0-10V signal → electrical connections
DHW managament in modular configuration
 Each unit with ACS option must have its own DHW storage
 Each unit with DHW option must have its own DHW storage tank.
 The pumping unit is managed directly by the unit with ACS option via clean contact (PUMP-N)
 The management of domestic hot water takes priority over the system
→ Domestic hot water

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4WATER CONNECTION
Option Code
Kit containing pipe closing caps for modular units PEST00001
CCKMUX
Water fittings for modular unit PESM00001
AMODX
12
34

16 WSAN-YES 18.2-35.2 M0ST10N19-00
Spacers
A↔A A↔B
Remove yellow lift frame and use holes to
fix spacer
AAB
B
B↔B
Use prepared holes
to fix spacer
4WATER CONNECTION

17
WSAN-YES 18.2-35.2
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Operations sequence
Before starting the unit pump:
 Close all vents in the high points of the unit’s
water circuit.
 Close all drain shut-off valves in the low points
of the unit’s water circuit
 Exchangers
 Pumps
 collectors
 storage tanks
 Thoroughly wash the system with clean water:
use the bypass to exclude the exchanger from
the flow (diagram on previous page) fill and
drain the system several times.
 Apply additives to prevent corrosion, fouling,
formation of mud and algae.
 Fill the system
do not use the unit pump
 Conduct a leak test.
 Isolate the pipes to avoid heat dispersions and
formation of condensate.
 Leave various service points free (wells, vents,
etc).
 Neglecting to wash will lead to the filter having to be
cleaned many times and at worst may damage the
exchangers and compressors.
4WATER CONNECTION
Water connections
Standard: Victaulic type
Option: to weld
UNIT
A
filettare –to threadsaldare –to weld
A1 A2
impianto - system
A + B : fornito da Clivet - Clivet supplied
o - or
B
A
UNIT impianto - system
A+B: fornito da Clivet - Clivet supplied

18 WSAN-YES 18.2-35.2 M0ST10N19-00
The characteristics of the electrical lines must be
determined by specialized personnel able to design
electrical installations; moreover, the lines must be
in conformity with regulations in force.
The protection devices of the unit power line must
be able to stop the presumed short circuit current,
whose value must be determined in function of
system features.
The power cables and the protection cable section
must be defined in accordance with the
characteristics of the protections adopted.
All electrical operations should be performed by
trained personnel having the necessary requirements
by the regulations in force and being informed
about the risks relevant to these activities.
Operate in compliance with safety regulations in
force.
Electrical data
The serial number label reports the unit specific
electrical data, included any electrical accessories.
The electrical data indicated in the technical
bulletin and in the manual refer to the standard
unit, accessories excluded.
Refer to the electrical data report on the serial
number label:
Tensione
 F.L.A.: full load ampere, absorbed current at
maximum admitted conditions
 F.L.I.: full load input, full load power input at
max. admissible condition
 Electrical wiring diagram Nr
Connections
refer to the unit electrical diagram (the number of
the diagram is shown on the serial number label).
verify that the network has characteristics
conforming to the data shown on the serial number
label.
Before starting work, verify that the sectioning
device at the start of the unit power line is open,
blocked and equipped with cartel warning.
Primarily you have to realize the earthing
connection.
Shelter the cables using adequate measure
fairleads.
Before power the unit, make sure that all the
protections that were removed during the electrical
connection work have been restored.
Signal s / data lines
Do not overpass the maximum power allowed,
which varies, according to the type of signal.
Lay the cables far from power cables or cables
having a different tension and that are able to emit
electromagnetic disturbances.
Do not lay the cable near devices which can
generate electromagnetic interferences.
Do not lay the cables parallel to other cables;
cable crossings are possible, only if laid at 90°.
Connect the screen to the ground, only if there
aren’t disturbances
Guarantee the continuity of the screen during the
entire extension of the cable.
Respect impendency, capacity and attenuation
indicationsIngresso linea elettrica
Power input
Fix the cables: if vacated may be subject to
tearing.
The cable must not touch the compressor and the
refrigerant piping (they reach high temparatures).
Remote ON-OFF
Do not perform short On Off cycles
Do not use the remote On Off with
thermoregulation function.
5ELECTRICAL CONNECTIONS
A B
A B
YES N O !
A
B
AB
A B
A B
YES N O !
A
B
AB
Disconnector
In case of exceptional open-door manoeuvres, act
only at the base of the rod. Otherwise, forces
can be applied in unsuitable directions with the
risk of damage to the disconnector.
OK
NO

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Connections by the Customer
5ELECTRICAL CONNECTIONS

20 WSAN-YES 18.2-35.2 M0ST10N19-00
REMOTE CONTROL
With S5_3 ON, the unit is controlled remotely.
Wired controller disabled.
ON/OFF state:
controlled by the On/Off input
input ON = unit ON
Heat/Cool mode:
controlled by the Heat/Cool input
On = heating, Off = Cooling
With the units in modular configuration, remote
control must be applied to the master unit, which
transmits it to the slave units.
After having set S5_3 disconnect and reconnect the
power supply to confirm the change.
Unit in modular configuration
Set the correct date and time on each unit before
connecting them to the network
Enable multiple configuration:
SW12-2 :
ON units in multiple configuration (or enabling DHW
menu)
OFF single unit
The modular configuration consists of two networks:
the controller network and the unit network (main
boards).
Each network can have up to 16 addresses (from 0
to 15) and must be addressed separately.
Each network has its own master, which must have
address = 0.
If some slave have no DHW option:
 set as master a unit without DHW option.
 set the major addresses to the slaves equipped with
DHW option
5ELECTRICAL CONNECTIONS
Addressing units in multiple configuration
They are addressed through the encoder ENC4 on
the back of the keypad.
The address corresponds to the encoder no.
The address is shown on the display DSP1.
Es: MASTER : address = 0 encoder = 0
SLAVE 1 : address = 1 encoder = 1
SLAVE 15 : address = 15 encoder = F