CORDIVARI COMBI 3 Multi Heat Energy Buffer User Manual
- October 30, 2023
- CORDIVARI
Table of Contents
CORDIVARI COMBI 3 Multi Heat Energy Buffer
Product Information
The Combi 3 is a multi-heat energy tank used for heating hot water storage and D.H.W. production. It is designed to be used in units with a discontinuous energy source for double use: heating systems and domestic hot water systems. The product comes with chain magnesium anode insulation and has a warranty of 5 years. The Combi 3 is available in two models, namely WB (with hard foam insulation) and WC (with dismountable soft fleece insulation). The WB model is available in six different sizes ranging from 500 to 2000 litres, while the WC model is available in four different sizes ranging from 800 to 2000 litres.
Product Usage Instructions
The Combi 3 is primarily used for heating hot water storage and D.H.W. production. It is designed to be used in units with a discontinuous energy source for double use: heating systems and domestic hot water systems. The product comes with chain magnesium anode insulation and has a warranty of 5 years.
WB Model
The WB model is available in six different sizes ranging from 500 to 2000 litres. The following table provides information on the available sizes:
| Model | Volume [lt] | Surface [m2] |
|---|---|---|
| 500 | 478 | //750, 1670//, 1835, 247, 260, 533, 629, 744, 841, 930, 1011, |
1231, 1231, 1343
600| 560| //750, 1920//, 2070, 247, 260, 582, 695, 855, 915, 1060, 1144,
1500, 1382, 1593
800| 805| //790, 950, 1855, 1900, 2120, 265, 278, 584, 690, 762, 823,
988, 1115, 1428
1000| 946| //1332, 1541, 790, 950, 2150, 2180, 2380, 265, 284, 656, 787,
953, 998, 1188
1500| 1454| //1300, 2345//, 2715, 347, 370, 770, 879, 1001, 1060, 1300,
1411, 1820, 1687, 1943
2000| 1973| //1100, 2280//, 2590, 313, 336, 736, 845, 1006, 1061, 1286,
1377, 1805, 1653, 1909
The WB model comes with a hard foam insulation and is equipped with a fixed heat exchanger and a chain magnesium anode. The product is designed and produced in conformity with the article 4.3 of directive 2014/68/UE – ErP Ecodesgin directive 2009/125/CE.
WC Model
The WC model is available in four different sizes ranging from 800 to 2000 litres. The following table provides information on the available sizes:
| Model | Volume [lt] | Surface [m2] |
|---|---|---|
| 800 | 191 | 1.6 |
| 1000 | 226 | 1.8 |
| 1500 | 412 | 2.5 |
| 2000 | 566 | 3.1 |
The WC model comes with dismountable soft fleece insulation and is equipped with a fixed heat exchanger and a chain magnesium anode. The product is designed and produced in conformity with the article 4.3 of directive 2014/68/UE – ErP Ecodesign directive 2009/125/CE.
APPLICATION
Heating hot water storage and D.H.W. production.
MATERIAL
- Buffer tank: Mild steel painted on the outside. Buffer intented for closed circuit installation, so no anti-corrosion treatment is provided.
- D.H.W. storage: Mild steel Polywarm® coated (Attestation ACS – SSICA- EN 16421 – WRAS)
HEAT EXCHANGERS
- N° 2 mild steel fixed heat exchangers.
TECHNICAL DESCRIPTION
- Multi-Heat Energy tanks Combi 3 are used in units with a typically discontinuous energy source for double use: heating systems and domestic hot water systems.
INSULATION
- HARD: High thermal insulation with ecological polyurethane hard foam. Models 800-1000 available with dismountable hard foam insulation.
- SOFT (Dismountable): NOFIRE® polyester fleece 100% made of recyclable material, with high thermal insulation. Fire resistance class B-s2d0 according to EN 13501.
- Grey PVC external lining, complete with top and flange cover.
CATHODE PROTECTION
- Chain magnesium anode
WARRANTY
- 5 years (See general sales conditions and warranty)
ACCESSORIES AND SPARE PARTS
- See the Accessories section for the entire list.
Overview
COMBI 3 WB
Model| HARD FOAM insulation| Volume| Surface| | Volume| Surface|
Volume| Surface|
---|---|---|---|---|---|---|---|---|---
| Art. Nr.| [lt]| [m2]| | [lt]| [m2]| [lt]| [m2]|
500| 3270162314201| 99| 1,1| | 8| 1,3| 11,5| 1,9| C
600| 3270162314202| 146| 1,3| | 12| 1,9| 18| 2,8| C
800| 3270162314203| 191| 1,6| | 16| 2,4| 20| 3,1| B
1000| 3270162314204| 226| 1,8| | 20| 3,1| 24| 3,7| C
1500| 3270162314205| 412| 2,5| | 23| 3,5| 32| 4,9| C
2000| 3270162314206| 566| 3,1| | 27| 4,1| 35| 5,4| B
COMBI 3 WC
Model| insulation| Surface| | Volume| Surface| Volume| Surface|
---|---|---|---|---|---|---|---|---
| Art. Nr. [lt]| [m2]| | [lt]| [m2]| [lt]| [m2]|
800| 3270162284212 191| 1,6| | 16| 2,4| 20| 3,1| C
1000| 3270162284213 226| 1,8| | 20| 3,1| 24| 3,7| C
1500| 3270162284214 412| 2,5| | 23| 3,5| 32| 4,9| C
2000| 3270162284215 566| 3,1| | 27| 4,1| 35| 5,4| C
Online ErP label tool
ACCESSORIES
Thermometer
| Art. Nr. | **** |
|---|
5032240000107
5 units box
Chain magnesium anode (Connection 3/4”)
| Art. Nr. | For models | **** |
|---|---|---|
| 5200000041007 | 800÷2000 | |
| 5200000041016 | 500,600 |
N° 2 chain anodes + insulated cap + gasket
Buffer tanks connecting kit
| Art. Nr. | Connection |
|---|---|
| 5006170001001 | 1” 1/2 |
Stainless steel extensible connecting kit – (200 ÷ 400 mm)
MULTI-HEAT ENERGY BUFFER
WITH POLYWARM® COATED TANK-IN-TANK CALORIFIER FOR D.H.W. AND 2 FIXED HEAT EXCHANGERS
TÜV Rheinland Energie und Umwelt GmbH states that test procedures and Cordivari LAB are certified conforming to European standard EN 15332, as indicated by Ecodesign ErP Directive.
See TECHNICAL SUPPORT chapter for example of installation
- A Heating delivery/From generator 1″1/2 G F
- B Connection for instrumentation 1/2″ G F
- C Heating return/to generator 1″1/2 G F
- D Heating delivery 1″1/2 G F
- E Domestic hot water outlet 3/4″ G F
- F Domestic cold water circuit inlet 3/4″ G F
- G Fixed heat exchanger inlet 1″ G F
- H Fixed heat exchanger outlet 1″ G F
- I Connection for electric immersion heater 1″1/2 G F
- L Air purge 1/2″ G F
- M Magnesium anode 3/4″ G F
- N Recirculation 3/4″ G F
INSULATION
COMBI 3 WB: HARD FOAM INSULATION
COMBI 3 WC: DISMOUNTABLE SOFT FLEECE INSULATION
STORAGE PERFORMANCES
D. H.W. STORAGE PERFORMANCES
HEAT EXCHANGER POWER
LOWER HEAT EXCHANGER POWER COMBI 2 – COMBI 3
Output of the Combi 2 – Combi 3 lower heat exchangers depending on the average DeltaT between primary and accumulation considering flow rate 3 m3/h.
Thermal output is given in both kW or kcal/h in terms of average temperature difference between primary and secondary circuit, all for a range of primary 3 m3/h. For example, a 1000 liters COMBI 2 with a water flow of 3 m3/h at 80 °C inlet and outlet at 70 °C, has on the storage of water an average temperature of 60 °C, the main difference of temperature will be: (80 +70) / 20-60 = 15 °C and therefore you can exchange up to approximately 32 kW.
UPPER HEAT EXCHANGER POWER COMBI 3
- Output of the Combi 3 upper heat exchangers depending on the average DeltaT between primary and accumulation considering flow rate 3 m3/h.
LOWER HEAT EXCHANGER PRESSURE DROP COMBI 2 – COMBI 3
UPPER HEAT EXCHANGER PRESSURE DROP COMBI 3
P.E.D. product designed and produced in conformity to article 4.3 of directive 2014/68/UE – ErP Ecodesign directive 2009/125/CE
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