Ferroli Ecounit F 1C Interaccumulator Instruction Manual

Ecounit F 1C Interaccumulator
Instruction Manual

USE, INSTALLATION, AND MAINTENANCE INSTRUCTIONS

General instructions

• Carefully read the instructions contained in this instruction booklet.
• After the hot water tank installation, inform the user regarding its operation and give him this manual, which is an integral and essential part of the ECOUNIT F and must be kept with care for future reference.
• Installation and maintenance must be carried out by professionally qualified personnel, according to current regulations and the manufacturer’s instructions. Do not carry out any operation on the sealed control parts.
• Incorrect installation or inadequate maintenance can result in damage or injury. The Manufacturer declines any liability for damage due to errors in installation and use or failure to follow the instructions.
• Before carrying out any cleaning or maintenance operation, disconnect the unit from the electrical power supply using the system switch and/or the special cut-off devices.
• In case of a fault and/or poor operation, deactivate the unit and do not try to repair it or directly intervene. Contact professionally qualified personnel. Any repair/replacement of the products must only be carried out by qualified personnel using genuine parts. Failure to comply with the above can compromise the safety of the unit.
• This unit must only be used for its intended purpose. Any other use is deemed improper and therefore hazardous.
• The packing materials are potentially hazardous and must not be left within the reach of children.
• The unit must not be used by people (including children) with limited physical, sensory or mental abilities or without experience and knowledge of it, unless instructed or supervised in its use by someone responsible for their safety.
• The unit and its accessories must be appropriately disposed of, in compliance with the current regulations.
• The images given in this manual are a simplified representation of the ECOUNIT  F. In this representation, there may be slight and insignificant differences with respect to the ECOUNIT F supplied.

Introduction

ECOUNIT F is a vertical hot water storage tank with a single coil (vers. 1C) or with a double coil (vers. 2C).
This unit is designed for heating domestic hot water to a temperature below boiling point at atmospheric pressure and must be connected to an energy source and a DHW  system, compatible with its performance characteristics and power.
PLACE OF INSTALLATION
The place of installation must be protected against frost.
The hot water storage tank must be placed in the immediate vicinity of the heat generator, to avoid pointless heat loss. Suitably insulate the feed pipes.
PLUMBING CONNECTIONS
Carry out the relevant connections according to the cover diagram and the symbols given on the unit.
It is advisable to install the unit near the main hot water drawing point, in order to avoid heat loss along the pipes, and possibly near a drain to facilitate any emptying operations.
The unit is arranged for connection to a recirculation pipe (ref. 20 in fig. 5 and fig. 6): this pipe must be insulated. For recirculation, it is necessary to install a pump equipped with an operation timer or a minimum contact thermostat, to obtain its activation on the cooling of the recirculation water.
If the union is not used, fit a suitable plug.
A relief valve (ref. 11 in fig. 5 and fig. 6) with a setting equal to or greater than the max. DHW pressure given in the technical data tables on pagina 26 must be installed on the cold water feed pipe upstream of the hot water tank.
The connection pipe between the hot water tank and the relief valve must absolutely not be shut off, as damage to the hot water tank could occur due to overpressure.
The relief valve outlet must be connected to a funnel or collection pipe to prevent water from spurting onto the floor in case of overpressure in the hot water tank circuit. Otherwise,  if the discharge valve cuts in and floods the room, the boiler manufacturer cannot be held liable.
Slight dripping from the relief valve is normally in the heating phase; therefore it is advisable to connect it to a drain with a trap.
In case of the main pressure near the valve setting values, a suitable pressure reducer (ref. 15 in fig. 5 and fig. 6) must be fitted as far away as possible from the unit.
DHW expansion tank
The DHW expansion vessel must be sized according to the capacity of the hot water tank and the cold water pressure.
If the system has a pressure reducer, for the reason described above, and/or a check valve, it is necessary to install an expansion tank (ref. 14 in fig. 5 and fig. 6) having a capacity not less than 5% of the hot water tank nominal capacity.
Do not install a check valve between the relief valve and the expansion tank. In general, to safeguard the unit and the system, it is advisable to install the expansion tank with the characteristics defined above.
Fill the special expansion tank diaphragm chamber according to the manufacturer’s instructions.

ELECTRICAL HEATING ELEMENT (1500W – 230V)
The heating element can be used as an auxiliary DHW heating system or as an antifreeze system. In the latter case, set the heating element adjustment knob (“A” – “fig. 1”) to  min. (15°). To use it for heating water, the thermostat knob “A” adjusts the heating temperature (set point) of the heating element, adjustable between 15 and 75 °C.
The electrical system must be installed by a qualified technician according to the local regulations and in accordance with the applicable regulations in the building.
The system heating element must not be activated with the hot water tank empty! In this case the heating element warranty is voided.
For the heating element electrical connection (see “fig. 1”):

• Remove the cover “D” by removing the screws.
• For the connection of the hot water tank heating element to the power supply, cable “B” 3 x 2.5 mm2 (for 1.5 kW heating element) is required.
• Run the end of the cable from the cable gland to the electrical part.
• Connect the wires to the terminals of the thermostat “C”. Reassemble everything.

Make sure the thermostat is properly applied to the heating element.
The thermostat temperature adjustment range is from 15°C to 75°C. The thermostat has a safety device that intervenes if the temperature exceeds 93°C.

Operating instructions

STARTUP
After installation, fill the hot water tank with water for DHW use and for heating, proceeding as follows:

• Carry out filling of water for heating and vent the system
• Carry out filling of water for DHW use by means of the cold water inlet and vent by opening a hot water drawing point
• Install the thermostatic device in the special place on the hot water tank
• Start the boiler
• Emptying the unit
• To carry out emptying, close the cock for filling from the water system, connect a hose to the drain union and place the other end in an area provided with an external drain
• Open a drawing point and let the water run, then open the drain union and complete the emptying.

Maintenance and cleaning

Empty the unit before carrying out any maintenance operation.
GENERAL INSTRUCTIONS
To clean the external parts of the hot water tank, just use a cloth moistened with water, with the addition of liquid soap if necessary.
Do not use detergent powders and solvents (abrasives of any type, petrol and similar products).
Check the protection anode at least once a year (see next section).
If installed in places with risk of frost, the unit must be kept operating or completely emptied.
INSPECTION AND CLEANING INSIDE THE TANK
To clean the inside of the tank, empty the unit, and remove the cover (“D” – “fig. 1”) by undoing the screws.
Remove the flange (“F” – “fig. 1”). During cleaning be careful not to damage the tank and exchanger (coil) enamel.
Cleaning can be done with a jet of water and, if necessary, with the aid of a suitable tool in plastic and wood to eliminate stubborn sedimentation.
Refit the flanges on the inspection openings with respective seals, checking their condition (use a new seal if necessary).
Refill the unit according to the startup instructions and check its tightness.
ANODE CHECK
The unit is protected against corrosion by a vitreous enamel coating of the inner surface and the exchange coil.
The hot water tank also has an anticorrosion magnesium anode to protect against the effect of eddy currents which could damage it: the duration depends on the operation and the quality of the water.
The anode can be inspected (it is advisable to do this at least once a year) and is replaceable.
To check and/or replace it, firstly empty the hot water tank as described above, then remove the black plastic cover on the upper end-plate of the hot water tank.
To remove the anode, it is necessary to unscrew the flange “F” – “fig. 1” (tightening torque 25-30 Nam). After inspection and/or replacement, the tightness of the hot water tank must be checked.
Replacement must be done with the original parts.

Technical Data

DIMENSIONS AND CONNECTIONS

Model ECOUNIT F 1C

Legend

Dimensions

Model| A
mm| 13
mm| C
mm| D
mm| E
mm| F
mm| G
mm| H
mm| I
mm| M
mm| N
mm
---|---|---|---|---|---|---|---|---|---|---|---
ECOuNiT F 100-1C| 500| 978| 870| 736| 636| 536| 336| 236| 126| 400| 326
ECOuNiT F 120-1C| 500| 1117| 1008| 736| 636| 536| 336| 236| 126| 400| 326
ECOuNiT F 150-1C| 500| 1325| 1216| 1088| 988| 888| 336| 236| 126| 400| 326
ECOuNiT F 200-1C| 540| 1453| 1344| 1084| 984| 884| 334| 234| 124| 440| 324
ECOuNiT F 300-1C| 620| 1535| 1431| 1161| 1061| 961| 361| 261| 131| 520| 351
ECOUNiT F 400-1C| 750| 1469| 1326| 985| 885| 785| 441| 341| 155| 650| 418
ECOUNiT F 500-1C| 750| 1769| 1626| 1261| 1161| 1061| 441| 341| 155| 650| 418

Plumbing connections

Model| DHW connections| Coil connections| Recirculation connection
---|---|---|---
ECO UNIT F 100-1C| 3/4| 3/4| 3/4
ECO UNIT F 120-1C| 3/4| 3/4| 3/4
ECO UNIT F 150-1C| 3/4| 3/4| 3/4
ECO UNIT F 200-1C| 3/4| 3/4| 3/4
ECO UNIT F 300-1C| 1| 1| 1
ECO UNIT F 400-1C| 1| 1| 1
ECO UNIT F 500-1C| 1| 1| 1

Plumbing connections

Model| DHW connections| Coil connections| Recirculation connection
---|---|---|---
ECO UNIT F 100-1C| 3/4| 3/4| 3/4
ECO UNIT F 120-1C| 3/4| 3/4| 3/4
ECO UNIT F 150-1C| 3/4| 3/4| 3/4
ECO UNIT F 200-1C| 3/4| 3/4| 3/4
ECO UNIT F 300-1C| 1| 1| 1
ECO UNIT F 400-1C| 1| 1| 1
ECO UNIT F 500-1C| 1| 1| 1

Model ECOUNIT F 2C

Legend

Dimensions

Model| A
mm| B
mm| C
mm| D
mm| E
mm| F
mm| G
mm| H
mm| I
mm| J
mm| K
mm| L
mm| M
mm| N
mm
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
ECO UNIT F 200-2C| 540| 1453| 1344| 1234| 1134| 1034| 934| 834| 734| 234| 124| 324| 440| 324
ECO UNIT F 300-2C| 620| 1535| 1431| 1311| 1211| 1111| 961| 861| 761| 261| 131| 351| 520| 351
ECO UNIT F 400-2C| 750| 1469| 1326| 1174| 1074| 974| 852| 752| 661| 391| 291| 155| 650| 418
ECO UNIT F 500-2C| 750| 1769| 1626| 1474| 1374| 1274| 1152| 1052| 898| 398| 298| 155| 650| 418

Plumbing connections

Model| DHW connections| Upper coil
connections| Lower coil
connections| Recirculation connection
---|---|---|---|---
ECO UNIT F 200-2C| 3/4| 3/4| 3/4| 3/4
ECO UNIT F 300-2C| 1| 3/4| 3/4| 3/4
ECO UNIT F 400-2C| 1| 1| 1| 3/4
ECO UNIT F 500-2C| 1| 1| 1| 3/4

HYDRAULIC CIRCUITS Model ECOUNIT F 1C

– not supplied)
 12 Emptying cock (not supplied)|

Model ECOUNIT F 2C

TECHNICAL DATA TABLE ECOUNIT F 1C

ECO UNIT F 1C| | ECO UNIT F
1001C| ECO UNIT F
1201C| ECO UNIT F
1501C| ECO UNIT F
2001C| ECO UNIT F
3001C| ECO UNIT F
4001C| ECO UNIT F
5001C
---|---|---|---|---|---|---|---|---
Capacity| liters| 90| 107| 130| 180| 277| 387| 480
Exchanged power t 35 K| kW| 19.| 19.| 31.| 35.00| 46.| 59.| 85.
DHW flow rate t 35 K| liters| 450| 450| 790| 860| 1120| 1440| 2060
DHW flow rate t 50 K| litres%| 318| 318| 537| 606| 774| 1020| 1458
Preparation time t 35 K| min.| 13| 16| 12.| 14| 16| 17| 15.
Preparation time l50 K| min.| 19| 23| 17| 20| 23| 24| 21
Max. working pressure in hot water production| bar| 8| 8| 8| 8| 8| 8| 8
Max.workingtemperatureinhotwaterproduction| °C| 95| 95| 95| 95| 95| 95| 95
Loss for maintaining| kWh x 24h| 2.| 2.| 2.| 2.| 3.| 3.| 4.
Coil exchange surface| m2| 0.74| 0.74| 1.| 1.| 2.| 2.| 3.
Coil length| m| 9.| 9.| 16.| 18.| 23.| 23.| 33.
Coil pressure loss| bar| 228| 228| 386| 432| 565| 118| 167
Coil nominal flow rate| m3ih| 2| 2| 2| 2| 2| 2| 2
Protection rating| IP| COD| COD| COD| COD| COD| COD| COD
Power supply voltage| V/Hz| 230:50| 230/50| 230/50| 230:50| 230/50| 230/50| 230150
Electrical power input| W| 1500| 1500| 1500| 1500| 1500| 1500| 1500
Empty weight| kg| 45| 49| 64| 73| 102| 126| 155

TECHNICAL DATA TABLE ECO UNIT F 2C

ECO UNIT F_2| | ECO UNIT F 200 2C| ECO UNIT F 3002C| ECO UNIT F 400 2C| ECO UNIT F 500 2C
---|---|---|---|---|---
Capacity| liters| 178| 275| 385| 478
UPPER COL
Exchanged power t 35 K| kW| 13.| 18| 30.| 30.
DHW flow rate t 35 K| liters| 306| 444| 726| 726
DHW flow rate t 50 K| liters| 216| 310| 510| 510
Preparation time t 35 K| min.| 39| 41| 33| 41
Preparation time t50 K| min.| 56| 58| 47| 59
Coil exchange surface| m2| 0.5| 0.72| 1.| 1.
Coil length| m| 6.| 9.| 11.| 11.
Coil pressure loss| mbar| 155| 220| 58| 58
Coil nominal flow rate| WM| 2| 2| 3| 3
| | | | |
LOWER COIL
Exchanged power t 35 K| kW| 21.| 25| 38.| 55
DHW flow rate t 35K| liters| 510| 618| 936| 1350
DHW flow rate t 50K| liters| 357| 430| 655| 945
Preparation time l35 K| min.| 24| 29| 26| 22
Preparation time t50 K| min.| 34| 42| 37| 32
Coil exchange surface| m2| 0.83| 1| 2.| 2.
Coil length| m| 11.| 13.| 15.| 21.
Coil pressure loss| mbar| 254| 308| 75| 109
Coil nominal flow rate| maim| 2| 2| 3| 3
| | | | |
Max. working pressure in hot water production| bar| 8| 8| 8| 8
Max. working temperature in hot water production| °C| 95| 95| 95| 95
Loss for maintaining| kWh x 24h| 2.| 3.| 3.| 4.
Protection rating| IP| COD| COD| COD| COD
Power supply voltage| Vitz| 230150| 230/50| 23050| 230150
Electrical power input| W| 1500| 1500| 1500| 1500
Empty weight| kg| 73| 103| 126| 155
With the following reference temperature values: boiler water 85°C. hot water outlet at 45°C. cold water inlet at 10°C
With a boiler water temperature of 85°C and at max. output

ErP product fiche

FERROLI S.p.A.
Via Rotonda 78/a
37047 San Bonifacio – Verona – ITALY
www.ferroli.it

References

• FERROLI - Caldaie, condizionatori ed energie alternative

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