Cordivari Combi 3 Multi Heat Energy Buffer User Manual (+ PDF)

Contents hide

1 CORDIVARI COMBI 3 Multi Heat Energy Buffer

2 Product Information

3 Product Usage Instructions

8 MULTI-HEAT ENERGY BUFFER

9 INSULATION

10 STORAGE PERFORMANCES

11 HEAT EXCHANGER POWER

12 Documents / Resources

13 Related Posts

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

cordivari.com/erp

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