ALKON 50 - 70

CASKAD

Integrationand perfect compatibilityALKON multiplies itself!The flexible E8 heating controller viathe e-Bus connection system permitsthe management, with only two wires,of up to 8 ALKON units.Subdivided in two banks of 4 boilerseach, they can supply a total outputof up to 560 kW (with 8 ALKON 70)and up to 400 kW (with 8 ALKON50), with a subsequent flexibility of

use. Suitable hydraulic connectionkits, approved flue outlet systems,easy to mount frames and all theADDITIONAL SAFETY DEVICES inorder to present the system approvedby Unical, permits the fast installationof the complete circuit with a mixingheader, suitably dimensioned for thedesigned output. This gives you theadvantage of having at disposal,

where space is very reduced, highefficiency modules, guaranteeing: Recovery and restoration of oldheating plants Better efficiency levels thanks tothe excellent modulation ratiowhich reduces the output in allthe boilers, proportionally to theoutput required and shuts themdown in sequence.

Choosing from the accessories available, themultiple arrangement of boilers will beconstructed on the basis of the C.H. system’srequirements.Each boiler can be fitted with a single flueoutlet configuration which, then, conveys theflue gases into a sole collector.

The above applications are approved andcertified according to the existing Standards.

Reliable operation under everycondition thanks to output sharing.

The versatility of combinationswhich the ALKON CASKAD modularsystem offers, is practically endless.In this case you can choose an ALKONas the “master” boiler who,via the E8 heating controller, “controls”the subsequent ALKON “slave” boilers,who are also equipped with a pump.

CASKAD with n° 4 ALKON unitsin a multiple boiler installation.

The ALKON offers flexibleoperation and highoperating efficienciesWe have seen that the individualALKON boiler has an approved efficiencywhich, when the output reduces, increasesprogressively from 102 to 109% (incondensing mode).

This is possible because to the heatexchanger increases its efficiency, andflue temperature decreases, when theinput is reduced.

In order to increase the total operatingefficiency of the ALKON CASKAD,the E8 heating controller maintainsthe major number of ALKON unitsin the multiple boiler installation, firing atthe lowest possible rate (as shown in thebesides examples).

Using this method the heating systemwill always operate at the maximumpossible efficiency, independentlyfrom the rate supplied.

Always with the same operation principle,when the heating load slowly reduceitself, the output of each module will alsobe controlled and proportionally reduced.

As the minimum rate of each moduleis 10 kW, if the required load is inferiorto the total minimum output of the singleunits (n° units x 10 kW), only the ALKONboilers, needed to reach the requestedoutput at the maximum efficiency level,will be fired and the other units will beshut down.

Moreover, in order to ensure an equaldaily rotation of each module, every24 hours each unit will be fired alternately,so as to ensure that each one operatesfor the same number of hours.

CASKADincreases output and efficiency

10 15 20 25 30 35 40 45 50

102

104

106

108

109

200 kWRequested output

η = 102Total efficiency

50 kW 50 kW 50 kW 50 kW

100 kWRequested output

η = 106Total efficiency

25 kW 25 kW 25 kW 25 kW

40 kWRequested output

η = 109Total efficiency

10 kW 10 kW 10 kW 10 kW

30 kWRequested output

η = 109Total efficiency

10 kW 10 kW 10 kW OFF

55 60 65 70

Output (kW)

ALKON EFFICIENCY

Eff

icie

ncy

(%)

Output sharing with 4 x 50kW modules in cascade

* Usable also on single boiler with PPS flue.

Installation of 2 ALKON boilers in a multipleboiler installation

CASKAD ...

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9

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COMPOSIZIONE1 - ALKON 50 natural gas Cod. 41010012 - ALKON 50 LPG Cod. 41010028oppure:

- ALKON 70 natural gas Cod. 41010098- ALKON 70 LPG Cod. 41010099

2 - E8 heating controller Cod. 003613323 - Supporting frame for 2 units Cod. 003613633a - Expansion frame for 1 unit Cod. 003613654 - ALKON collectors kit Cod. 003613145 - Additional Safety Devices Kit stub pipe 50-200 kW Cod. 003613136 - Additional Safety Devices Kit Cod. 003613167 - Hydraulic separator kit up to 180 kW (per mod. Alkon 50) Cod. 00361499

up to 450 kW (per mod. Alkon 70) Cod. 003615008 - Separator connection kit up to 180 kW (per mod. Alkon 50) Cod. 00361414

up to 450 kW (per mod. Alkon 70) Cod. 003614159 - Flue outlet kit 2 ALKON units Cod. 003613619a - Expansion flue outlet kit 1 ALKON unit Cod. 0036136210 - Modulating pump (optional for Alkon 50) Cod. 00361320 Fixed rate pump (optional for Alkon 50) Cod. 0036132111 - Blind flange kit Cod. 00361450

ADDITIONAL FLUE OUTLET ACCESSORIES45° elbow DN 160 Cod. 0026243087° elbow DN 160 Cod. 00262431Extension DN 160 L = 250 Cod. 00262432Extension DN 160 L = 500 Cod. 00262433Extension DN 160 L = 1000 Cod. 00262434Extension DN 160 L = 2000 Cod. 00262435Inspection pipe DN 160 Cod. 00262438Smoke thermostat kit* Cod. 00361451

CONTROLS ACCESSORIESWAG holder kitfor wall mounting installation Cod. 00361359BM8 remote control kit Cod. 00361358

CONFIGURATION1 - ALKON 50 natural gas Cod. 41010012

- ALKON 50 LPG Cod. 41010028or:

- ALKON 70 natural gas Cod. 41010098- ALKON 70 LPG Cod. 41010099

2 - E8 heating controller Cod. 003613323 - Supporting frame for 2 units Cod. 003613634 - ALKON collectors kit Cod. 003613145 - Additional Safety Device Kit

stub pipe 50-200 kW Cod. 003613136 - Additional Safety Device Kit Cod. 003613167 - Hydraulic separator kit up to 180 kW Cod. 003614998 - Separator connection kit up to 180 kW Cod. 003614149 - Flue outlet kit 2 ALKON units Cod. 0036136110 - Modulating pump (optional for Alkon 50) Cod. 00361320

- Fixed rate pump (optional for Alkon 50) Cod. 0036132111 - Blind flange kit Cod. 00361450

ADDITIONAL FLUE OUTLET ACCESSORIES45° elbow DN 160 Cod. 0026243087° elbow DN 160 Cod. 00262431Extension DN 160 L = 250 Cod. 00262432Extension DN 160 L = 500 Cod. 00262433Extension DN 160 L = 1000 Cod. 00262434Extension DN 160 L = 2000 Cod. 00262435Inspection pipe DN 160 Cod. 00262438Smoke thermostat kit* Cod. 00361451

CONTROLS ACCESSORIESWAG holder kitfor wall mounting installation Cod. 00361359BM8 remote control kit Cod. 00361358

3

9a

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Installation of 3 ALKON boilers in a multipleboiler installation