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BKM120

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General

1  General

The mobile Kroll hot-water unit BKM120 is the 

result of decades of experience and intensive 

development work. The core piece of the unit is 

our well-proven permanently condensing boiler 

BK100. Its main characteristic is the very high 

degree of efficiency that makes the BKM120 a 

very energy saving unit. We are convinced to 

hand you over a top-quality product.

To achieve a long service life and a trouble-free 

operation, all details concerning installation and 

commissioning that are described in this manual 

have to be observed carefully.

Before installation and commissioning, read 

the manual carefully.

Installation, mounting and commissioning must 

be done by a professional.

Warning

1.1  Fields of application

Typically, the BKM120 is used as an additional 

heating or a transitional heating, e.g. during 

replacement works or when changing the local 

warm water system.

Furthermore, the BKM120 is used to provide pro-

cess heat e.g. for defrosting or drying processes.

It is suitable for big events such as music fes-

tivals, exhibitions, shows or sports events as a 

temporary heating water or domestic hot water 

generator.

1.2  Equipment and principle

The heat-creating part of the BKM120 is the per-

manently condensing boiler BK100. The interface 

to the external connection of the heating circuit is 

a plate heat exchanger.

In the following, the circuit of the heat transfer 

medium between boiler and heat transformer 

will be called "primary circuit" or "primary side". 

The circuit which is connected externally and 

flowing through the heat transformer at the 

opposite side, will be called "secondary circuit" 

or "secondary side".

Note

The burner is supplied with oil (oil connection at 

the back of the BKM120, single-line system) and 

creates a power of up to 120 kW inside the boiler. 

The energy is transferred to the primary circuit. 

To protect it from freezing, it consists of a mixture 

of ethylene-glycol and water.

The actual heat transfer to the water of the 

secondary circuit takes place inside the plate 

heat transformer. The desired outlet temperature 

is to be adjusted at the control. The complete 

secondary side is made of stainless steel.

The condensate being created during the con-

densation of the flue gas is neutralized in a 

downstream neutralization box (pH around 7) 

and can then be lead into the canalization.

The combustion air is taken in at the upper 

rear of the BKM120. The flue gas is lead away 

through a chimney at the back.

The following page shows a pipework scheme 

of the principle in use with the existing units and 

valves. The exact position of the single compo-

nents and connections in the scheme does not 

necessarily correspond to their real position. The 

manual refers to this pipework scheme by the 

indicated denomination of the components (B1, 

X1, V3,…).

Содержание BKM120

Страница 1: ...Operation Manual BKM120 Mobile hot water unit 053373 00c July 2014 0085 ...

Страница 2: ......

Страница 3: ...ical connection 8 4 3 Commissioning 8 4 3 1 Commissioning at outdoor temperatures 5 C 9 4 3 2 Commissioning at outdoor temperatures 5 C 9 4 3 3 Secondary side 9 5 Decommissioning 10 5 1 Boiler shutdown 10 5 2 Disassembling the unit 10 6 Control settings 11 6 1 Normal heating mode 11 6 2 Manual heating mode 11 6 3 Standby mode 11 6 4 Boiler temperature 11 7 Maintenance and servicing 12 7 1 Cleaning...

Страница 4: ...on of the heating circuit is a plate heat exchanger In the following the circuit of the heat transfer medium between boiler and heat transformer will be called primary circuit or primary side The circuit which is connected externally and flowing through the heat transformer at the opposite side will be called secondary circuit or secondary side Note The burner is supplied with oil oil connection a...

Страница 5: ...ck B3 Absperrhahn Shut off cock B4 Kesselfüll und entleerhahn Filling and discharging cock B5 Kappenventil Cap valve B6 Hahn für Belüftung Valve for aeration B7 Entleerhahn Sekundärseite Discharging cock secondary V1 Entlüfter Primärseite Vent valve primary side V2 Entlüfter Sekundärseite Vent valve secondary side V3 Entlüfter Wärmeübertrager Vent valve heat exchanger V4 Sperrventil Blocking valve...

Страница 6: ...h Max pressure primary circuit 300 kPa Max pressure secondary circuit 800 kPa Pressure drop secondary side 16 kPa Max outlet temperature 80 C Connections Secondary flow and return 2 BSP internal thread Oil pipe Quick coupling female Filling discharging primary circuit 1 2 hose connection Discharge heat exchanger 1 2 internal thread Electric connection Voltage 230 V Amperage 16 A Plug blue IEC60309...

Страница 7: ...5 General 1 5 Circuit diagram ...

Страница 8: ...KM120 must only be operated when it is in a technically proper condition Faults or damages that could or do alloy the safety must be repaired immediately and professionally Damaged elements and unit components must only be replaced by original Kroll spare parts Always observe the regulations warnings of the local safety regulations during loading transport to or from site as well as during storage...

Страница 9: ...front side rear side onto rear side Warning When the units are stacked never do any maintenance cleaning or other work neither at the upper unit nor at the lower unit Warning 3 Transport and storage 3 1 Transport Before transport make sure that all connections have been removed This means the electrical connections the oil feeding line and the secondary connection water connection the chimney has ...

Страница 10: ...ry circuit there is a pressure of minimum 1 5bar if the pressure is lower you have to add heat transfer liquid see chapter Maintenance and servicing 4 Installation and commissio ning Fig 1 Control panel BKM120 Main switch BKM120 Light Main switch boiler Boiler control Changeover switch Preheat Boileroperation Heating of neutralization box and siphon Signal lamp bur ner malfunction Resetbutton for ...

Страница 11: ...ng controlling time the secondary circuit is filled and deaerated the cap valve B5 at the expansion vessel is opened the condensate pipe and the neutralisation box are filled with water and free of ice the valves B1 B2 and B3 are opened all connections and screwings are sealed the inlet air hose is put onto the burner At temperatures near or below the freezing point you have to check if the siphon...

Страница 12: ...eating oil from the oil pipes and the oil filter and deaerated device To shutdown the boiler proceed as follows Push the ESC button several times until the ESC text expires Use the rotary knob to set Select function and confirm Select Boiler and confirm Push the left central quick select button twice Set the operation mode to Off and confirm with Save Wait for at least 5min only then switch the bo...

Страница 13: ...rol may occur pulsing control long controlling time Setting Push the ESC button several times until the ESC text expires Use the rotary knob to set Settings MB and confirm Select Enter password and confirm Enter the password 234 and confirm 6 Control settings Generally consider the operating manual of the master control Note Mostly settings are only done at the secondary side These settings are in...

Страница 14: ...e the siphon and wash it out with water Then wash the synthetic heat exchanger from the front see burner manual chapter 7 4 Wet cleaning neutralization box and plastic heat exchanger The water leaves at the back via the drain channel of the BKM120 In order to clean the granulate fill it into a sepa rate basin first There wash it with clear water decant the water and refill the cleaned granulate ba...

Страница 15: ... which can be discharged via the primary drain bolt For ventilation open the ball valve B6 Ideally the discharged heat trans fer liquid should be collected The heat trasferring liquid Glykosol N is classi fied with water hazard class 1 as slightly water endangering Note Now you can unscrew the four bolts two at the primary side and two at the secondary side and loosen the cover plate of the heat e...

Страница 16: ...BKM120 14 EC conformity certification 8 EC conformity certification EG Konformitätserklärung Déclaration de conformité CE ...

Страница 17: ...15 Notes 9 Notes Notes and particularities ...

Страница 18: ...BKM120 16 Notes Notes and particularities ...

Страница 19: ...17 Notes Notes and particularities ...

Страница 20: ...ment design shall result in expiration of every guarantee claim Otherwise our Conditions of Sale and Delivery shall apply Subject to technical change in terms of product improvement without notice updated 2016 01 29 08 16 Kroll GmbH company Pfarrgartenstraße 46 D 71737 Kirchberg Murr Phone 0049 0 7144 830 200 Fax 0049 0 7144 830 201 E mail mail krolluk com Internet www kroll de ...

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