DOMUSA Sanit 100 User guide

INSTALLATION AND OPERATING INSTRUCTIONS
SANIT 100
SANIT 150
SANIT 200
SANIT 250
ER-0170/1996
CGM-04/392

Thank you for choosing a DOMUSA TEKNIK product. From the range of
DOMUSA TEKNIK products you have chosen the Sanit model, a stainless
steel hot water tank for producing domestic hot water (DHW) in a double
chamber, which together with a DOMUSA TEKNIK heating boiler will
provide the ideal level of comfort for your home, provided it is
accompaniedbyasuitablehydraulicinstallation.
This manual forms an essential part of the product and it must be given to
the user. Read the warnings and recommendations in the manual
carefully, as they contain important information on the safety, use and
maintenanceoftheinstallation.
These hot water tanks are to be installed by skilled personnel only, in
accordance with the legislation in force and following the manufacturer’s
instructions.
The start-up of these hot water tanks and any maintenance operations
must only be carried out by DOMUSA TEKNIK’s Authorised Technical
AssistanceServices.
Incorrect installation of these hot water tanks could result in damage to
people, animals or property, and the manufacturer will hold no liability in
suchcases.

1
CONTENTS Page
1 SAFETY COMPONENTS.....................................................................................................................................................................2
1.1FROSTPRECAUTIONS................................................................................................................................................................................................2
1.2WATER CHARACTERISTICS.........................................................................................................................................................................................2
2 LIST OF COMPONENTS.....................................................................................................................................................................3
3 CONTROL COMPONENTS................................................................................................................................................................4
4 INSTALLATION INSTRUCTIONS......................................................................................................................................................5
4.1CONNECTION............................................................................................................................................................................................................5
4.2EQUIPMENT:..............................................................................................................................................................................................................5
4.3HYDRAULIC INSTALLATION.......................................................................................................................................................................................6
4.4INSTALLATION TYPE ..................................................................................................................................................................................................7
4.5LOCATION.................................................................................................................................................................................................................9
4.6EQUIPMENT /OPTIONS.............................................................................................................................................................................................9
4.6.1Cathodicprotection...................................................................................................................................................9
4.6.2S200hydraulickit........................................................................................................................................................9
4.6.3Electricalelement.....................................................................................................................................................10
4.6.4Wallsupport...............................................................................................................................................................10
4.6.5 Elliptical cover withelementsocket.................................................................................................................10
5 OPERATION.........................................................................................................................................................................................11
6 DIAGRAM AND ELECTRICAL CONNECTION.............................................................................................................................12
6.1ELECTRICAL DIAGRAM............................................................................................................................................................................................12
6.2ELECTRICAL CONNECTION TOTHE BOILER.............................................................................................................................................................12
6.3DIAGRAMS FORCONNECTION TO DOMUSATEKNIKBOILERS:.........................................................................................................................13
6.4INSTRUCTIONS FOR ELECTRICAL CONNECTION OF THE SANITSTORAGE HEATER TO THE FOLLOWING BOILERS:................................................13
7 MAINTENANCE..................................................................................................................................................................................15
8 START-UP.............................................................................................................................................................................................15
9 DELIVERY OF THE INSTALLATION...............................................................................................................................................15
10 SPARES LIST .....................................................................................................................................................................................16
10.1HOT WATER TANK................................................................................................................................................................................................16
10.2ELECTRICAL BOARD .............................................................................................................................................................................................17
11 DIAGRAMS AND MEASUREMENTS...........................................................................................................................................18
12 TECHNICAL CHARACTERISTICS.................................................................................................................................................19
13 GUARANTEE CONDITIONS..........................................................................................................................................................20

Sanit
2
1SAFETYCOMPONENTS
Sanittabks must be installedby qualified staff incompliancewithapplicableregulations.
Any work must be carried out by the official Technical Assistance Servic, as any changes to its
configuration could cause functioning errors and could damage the system and its surrounding
environment.
This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use if the appliance in a safe way and understand the
hazards involve. Children shall not play with the appliance. Cleaning and user maintenance shall
notbemadebychildrenwithoutsupervision.
The electrical main power supply connection must respect the current legislation, making possible
a complete disconnection of the tank, in order to make any maintenance operation safely. Look
"Electricalconnection"chapter.
1.1 Frost precautions
When there is danger of frost, and particularly in areas with very low temperatures, precautions
will need to be taken to prevent damage to the installation. It is recommendable to add anti-
freeze to the water in the primary circuit of the tank. The anti-freeze used must be compatible
with public health regulations and it must not be toxic. DOMUSA TEKNIK recommends the use of
propyleneglycol,consultingtheproductmanufacturerbefore use.
If theinstallation is to beout of use fora long period, drain all the water from the tank.
1.2 Water characteristics
The water must comply with the characteristics defined in the Technical Building Code, and must
betreatedifnecessary.

3
2LISTOFCOMPONENTS
TP
EP
ES SS 12
TP TP
3
SP
TR
DV
1. Frontcover.
2. Bridgecover.
3. Controlpanel.
SP: Primaryoutlet.
EP: Primary inlet.
ES: Domesticcoldwaterinlet.
SS: Domestichotwateroutlet.
TR: Resistancesocket.
TP: Drainvalvesocket.
DV: Drainvalve.

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4
3CONTROLCOMPONENTS
123
1. Adjustment thermostat:
This control is for adjusting the desired
temperature of the hot water stored in the
tank.
2. Element switch:
This is for starting up and stopping the optional
back-upelementofthehotwatertank.
3. Thermometer:
This indicates the temperature of the hot water
storedinthetank.

5
4INSTALLATIONINSTRUCTIONS
The Sanit range of hot water tanks has been specially designed for installation and hydraulic
connectiontoawiderangeofheating boilers.
4.1 Connection
The diagram below shows an example of the installation of Sanit hot water tanks with a heating
boiler:
Flow
Hotwater
outlet
Hotwater
inlet
BOILER
Return
21 3
4
5
6
7
11
8
9
10
11
11
4
12
4.2 Equipment:
1.- Feedpump.
2.- Non-returnvalve.
3.- Automaticdrainvalve.
4.- Dielectricsleeve.
5.- 7-barsafetyvalve.
6.- Non-returnvalve.
7.- Shut-offvalve.
8.- Stainlesssteelhotwatertank.
9.- Polyurethaneinsulation.
10.- Resistancesocket.
11.- Drainvalvesocket.
12.- Drainvalve.

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6
4.3 Hydraulic installation
The hydraulic installation must be made by qualified technicians, in compliance with current
installationregulationsandtakingthefollowingrecommendationsinto account:
- The secondary circuit (or domestic water circuit) is to be equipped with a safety valve,
calibratedtoamaximumof7bar.
-Thesafetyvalveoutletmustalways lead to a drain.
- To avoid continuous leaking from the D.H.W. safety valve, we recommend the installation of a
D.H.W.expansioncell.
- The primary circuit (or heating circuit) for the double chamber tanks must be provided with a
safetyvalve,calibratedtoamaximumof 3 bar.
- After installing the tank, firstly fill and pressurise the secondary circuit (domestic water circuit).
- After doing so, proceed to fill the primary circuit. Ensure the secondary circuit is full before
filling the primary circuit.
-Placedielectricsleevesonthesecondary circuit connections.
- If the cold water pressure is higher than the pressure the appliance is designed for, a pressure
reducershouldbeinstalled,calibratedtono higher than the design pressure.
- To prevent heat loss through the hot water pipes in accumulation systems, an anti-thermal
siphon must be installed at the hot water tank outlet. The hot water pipe must be insulated (at
leastuptotheanti-thermalsiphon).
-Acopperreturncircuitshouldnot be used.
- When the chlorine concentration in the Domestic Water exceeds 250 mg/dm3, it is
recommended that anti-corrosion protection should be applied to the inside of the inter-
accumulator so as to avoid its premature deterioration. As an option DOMUSA TEKNIK supplies
electronic cathodic protection that is suitable for the Sanit V inter-accumulator range. To install
it,readcarefullytheassemblyinstructionsthat are provided with the same.
On double chamber models, the plunger tube should be the cold water inlet on vertical standing
models, and it should be the hot water outlet on horizontal and wall-mounted models (see
installationdiagrams).
To drain the hot water tank, first drain the primary circuit and then the secondary circuit.

7
4.4 Installation type
The design of the hot water tank enables it to be installed in three different positions: horizontal,
wall-mountedandfloor-standing.
For horizontal installations, the hot water tank’s performance will be reduced at maximum flow,
andalargerhotwatertankshould therefore be acquired in such cases.
Horizontalinstallation:
For horizontal installation, the hot water tank is equipped with two fixing elements for anchoring it
to the wall. In this case, the secondary circuit inlet and outlet sockets are different from those of the
verticalinstallation,andthismustbetaken into account when making the hydraulic connection.
The screws for wall-mounting the appliance are not included, as the type of screws to be used vary
dependingontheparticularwall.
SS
ES
TP1
TP2
A drain valve should be fitted to the socket TP1 to evacuate any air remaining at the top of the hot
watertank.
To drain the primary circuit, and for optimum hot water tank performance, the tank should be
positioned as shown in the figure above. At the same time, insert the thermostat and thermometer
sensorinthebulb-holdersheath,pushingit down as far as it will go.
The horizontal drain valve is eliminated in this
type of installation, and so the secondary
circuitcannotbedrained.

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8
Wallandfloorinstallation:
DV
T
P2
SS
ES
SP
EP
T
P1
SS
ES
SP
EP
T
P1
T
P2
DV
If the installation is made with the hot water tank standing on the floor, the drain valve DV could be
beused,andtherestofthe sockets will be as shown.
For wall-mounting, position the hot water tank against the wall with the sockets facing downwards.
The secondary circuit inlet and outlet sockets are different from those of the vertical installation,
and the drain valve socket TP2 must be used. As in the case of the horizontal installation, the hot
watertankhastwofixingelementsfor anchoring it to the wall.
IMPORTANT: To unscrew the cap of the TP2 socket, we recommend using a socket wrench.
In this case, the insertion depth of the thermostat and thermometer sensor will need to be reduced, as
it is originally supplied for a floor installation. The sensor insertion depth for each model is shown
below. Sanit100 Sanit150 Sanit200 Sanit250
Insertiondepth 215mm 315mm 415mm 515mm
Model A B
Sanit100 420
Sanit150 700
Sanit200 1000
Sanit250 1000
170

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4.5 Location
The hot water tank must notbe installed in a location exposed to the elements.
To optimise energy use, the hot water tank should be installed as close as possible to the hot water
generator.
When choosing a location, take into account the weight of the full hot water tank, and make sure it
isprotectedagainstfrost.Thepipesshould be lagged in compliance with heating regulations.
For wall-mounted and horizontal installations, ensure thetypeofwallto which the hot water tank is
fixed can withstand the weight of the tank when full, and choose the most suitable fixing system
dependingonthewallinquestion.
4.6 Equipment / options
Although Sanit units are equipped with all the necessary components for functioning, DOMUSA
TEKNIKoffersseveraloptionalcomponentsforcasesinwhichspecialfeaturesarerequired.
4.6.1 Cathodic protection
If the chloride concentration in the domestic
hot water is higher than 250 mg/cm3, we
recommend installing a cathodic protection
inside the storage heater to avoid premature
wear to the hot water tank. DOMUSA TEKNIK
optionally supplies a suitable electronic
cathodic protection for its range of storage
heaters. To install it, carefully read the assembly
instructions supplied with the cathodic
protection.
Figure 1
4.6.2 S200 hydraulic kit
It is a well-known fact that an increase in the
temperature of the water stored in the hot
water tank can cause the pressure in the tank
to increase. DOMUSA TEKNIK therefore
recommends fitting the S200 hydraulic kit
consisting of dielectric sleeves, a DHW
expansion tank and a safety unit, to protect the
hot water tank. To install it, carefully read the
assemblyinstructionssuppliedwiththekit.
Figure 2

Sanit
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4.6.3 Electrical element
All Sanit hot water tanks have a socket for
connecting an electrical element. DOMUSA
TEKNIK optionally supplies three elements, of
1.5, 2.5 and 3.5 kW. To install them, carefully
read the assembly instructions supplied with
theelements.
Figure 3
4.6.4 Wall support
DOMUSA TEKNIK optionally supplies specific
supports for wall or horizontal installation of
theSanit100,150,200y250 hot water tanks.
Figura 4
4.6.5 Elliptical cover with element socket
If you should wish to install an element on a
wall or horizontal installation, DOMUSA
TEKNIK recommends fitting the element to the
elliptical cover. For this purpose it optionally
supplies an elliptical cover with an element
socket. For installation, carefully read the
assemblyinstructionssuppliedwiththecover.
Figura 5

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5OPERATION
The Sanit range of hot water tanks is specially designed for use with a wide range of solar power
elements,heatpumpsandboilerspoweredby any type of fuel.
If the tank is connected to a DOMUSA TEKNIK brand heating boiler, the boiler will be equipped with a
summerorwinterpositionswitch,whichis used to choose between:
- Summer position ☼:inthispositiontheboilerwillonlyproducehotwaterasneeded. The burner
and feed pump of the storage heater (summer pump) willbeswitchedonuntilthehot water stored
reaches the temperature set on the hot water thermostat of the storage heater (2) . When this
temperatureisreached,theburnerandthe summer pump will switch off.
- Winter position :in this position the boiler will produce hot water as needed and will also cater
fortheheatinginstallation,givingpriorityto hot water production.

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6DIAGRAMANDELECTRICALCONNECTION
The Sanitrange of hot water tanks is especiallydesignedfor easy electrical connection to a wide range
of heating boilers. The special design of its electrical connections enables the boiler/hot water tank
unit to provide heating and domestic hot water with automatic functioning, incorporating a hot water
priorityfunctiontothejointoperationof the two appliances.
When installing the supply cable, take the hot water tank element into account. Different tanks may
havedifferentelements,andadifferentcable diameter is recommended for each type:
Element Cablediameter
1500w 1.5mm2
2500w 2.5mm2
3500w 4mm2
6.1 Electrical diagram
The electrical connection of Sanit tank must be made by qualified staff, and any modifications may
onlybemadebytheofficialtechnical assistance service.
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R: Máx. 3.500 W
Orange
White
Red
Brown
Blue
Grey
Black
TACS
2
5
O/I
Blue
Black
Brown
T tube for
DHW
conection to
boiler
Ph
N
~220/230 V
1
4
21
6
5
4
3
2
1
E: Supportelement,maximum3500W.
O/I: Supportelementswitch.
TDHW:Domestichotwaterthermostat.
6.2 Electrical connection to the boiler
The electrical connection between Sanit hot water tanks and DOMUSA TEKNIK heating boilers is
madebysimplyconnectingthetubeshown in the electrical diagram, i.e. the TDHW tube.
Connect the tubeto the side ofthe hot water tankas shown in the electrical diagram in section 5.1.
On the side of the boiler, connect the supply tube of the feed pump (1) mounted on the installation
to the terminals bearing the letters "BV" (Summer Pump) according to the electrical diagram for
each model of boiler (see the boiler instructions manual). To connect the TDHW tube, first remove
the bridges from the boiler connector block and then connect the TDHW tube as shown in the
figuresbelow,dependingontheboilermodel.

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6.3 Diagrams for connection to DOMUSA TEKNIK boilers:
11 1 23
Black Blue Brown
TDHW tube for
connection to
boiler
SIRENACAL FD
13 14 15
Black Blue Brown
TDHW tube for
connection to
boiler
DONATEC /ECOGAS /
ECOGAS V
12 13 14 15
Black Blue Brown
TDHW tube for
connection to
boiler
JAKAFD
6.4 Instructions for electrical connection of the SANIT storage heater to the following boilers:
EvolutionEVFC
EvolutionEVAC SirenaCale SirenaCalVe

Sanit
14
The correct process for the electrical connection of the SANIT hot water storage heater to these
boilersisasfollows:
- Connect the hot water temperature sensor (supplied optionally) to the sensor connector block
J3 on the boiler (terminals 13 and 14). To do this, first remove the element (Ra) supplied with it
(see"ConnectionDiagram").
- Remove the thermostat bulb from the bulb-holder on the storage heater, and insert the
temperaturesensorbulbinitsplace.
- Connect the storage heater feed pump to the boiler supply connector block J2 (terminals 6 and
7)(seethe"ConnectionDiagram").
For a correct hydraulic installation, carefully follow the assembly and connection instructions
suppliedwiththestorageheater.
1
356
7
89
10
11 4
J1J2
1615141312
J3
J5
J4
NF
bc7
BC Q
Sc
TA
E20
Blue
Black
Blue
Blue
2
220 V
J6
1 2 3
RaRr
BV
Blue
M
Blue
RA
J3

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7MAINTENANCE
To keep the boiler/hot water tank unit in perfect working order, both appliances should by inspected
yearlybyDOMUSA TEKNIK authorisedtechnicians.Inparticular,thefollowingarerecommended:
- The inside of the hot water tank should be thoroughly cleaned once a year. The primary circuit
shouldbedrainedfirst,beforedrainingthe hot water tank.
- If the hot water tank includes electronic cathode protection, this should be inspected once a year
toensureitisfunctioningcorrectly.
-Thepressureoftheprimaryinstallation must be kept between 1 and 1.5 bars.
-Makesurethesafetyvalveand the drain valve are working correctly.
- If the installation has been out of use for a long time, check the hot water tank feed pump is
working correctly. To do this, remove the front cover from the pump, leaving the pump shaft
visible. If the shaft does not turn, disconnect the pump using the pump switch. Gently press the
shaft down with a suitably sized screwdriver and turn it in both directions. Then connect the
switchagain.
It is recommended for the user to periodically check the pressure and temperature levels of the hot
watertankandthestateofthe valves, connections and accessories.
8START-UP
For the guarantee to be valid, the hot water tank must be started up by an Official DOMUSA TEKNIK
Technical Assistance Service.Beforestartingitup,thefollowingmust be ensured:
-Theelectricalconnectionofthehot water tank is correctly made.
-Theinstallationisfilledwithwater and the draining has been done correctly.
-Thedrainvalveisworkingproperly.
- The primary flow and return connections and the hot and cold water connections have been
correctlymade.
- The thermostat has been properly adjustedand the electric cabling complies with regulations.
-Therearenoleaksfromthe splices and connections.
9DELIVERYOFTHEINSTALLATION
After the initial start-up of the appliance, the Technical Assistance Service will explain to the user how
thehotwatertankworks,makingany observations they consider relevant.
It is the responsibility of the installer to explain to the user the functioning of any control devices
belongingtotheinstallationandnotsupplied with the hot water tank.

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16
10 SPARESLIST
10.1 Hot water tank
1
2
34
5
7
8
9
10
11
12
4
16 15 11 12 2 3 14 13
6
17
Pos. Code Name
1 GELESAN007 Electrical board
2 CFER000086 1” black embellisher
3 CFER000081 1” tapered plug
4 CFER000007 ¾” red plug
5 Elliptical plug
6 100L bulb-holder sheath
150L bulb-holder sheath
200L bulb-holder sheath
250L bulb-holder sheath
7 Bridge
Pos. Code Name
8 M8 washer
9 M8 nut
10 CACU000038 Bridge cover
11 CFOL000055 M 3/8” brass plug
12 CFER000083 Seal
13 CFOL000020 M 1 ¼” chromed plug
14 CFER000087 1 ¼” black embellisher
15 CFER000084 1/2” black embellisher
16 CFOL000025 M ½ brass plug
17 CFOV000034 Manual drain valve

17
10.2 Electrical board
4
4
2
1
3
6
75
Pos. Code Name
1 CELC000099 Knob
2 CELC000007 Control thermostat
3 CACU000036 Control panel cover
4 CACU000037 Control panel plug
5 CACU000034 Control panel
6 CELC000136 Thermometer
7 CELC000025 Switch

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11 DIAGRAMSANDMEASUREMENTS
T
P1
T
P2
T
P1
T
P2
DV
T
P2
DV
MODEL Sanit 100 Sanit 150 Sanit 200 Sanit 250
A mm 630 905 1205 1305
DV drainvalve 3/8" 3/8" 3/8" 3/8"
TP1drainvalvesocket 1/2"H 1/2"H 1/2"H 1/2"H
TP2drainvalvesocket 3/8"H 3/8"H 3/8"H 3/8"H
Basemeasurement mm 581 581 581 581
Heightmeasurement mm 755 1.035 1.335 1.635
Coldwaterinlet ES3/4"M 3/4"M 3/4"M 3/4"M
Hotwateroutlet SS3/4"M 3/4"M 3/4"M 3/4"M
Primaryinlet/outlet EP/SP1"H 1"H 1" H 1"H
Resistancesocket R1-1/4"H 1-1/4"H 1-1/4"H 1-1/4"H