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5. Cleaning and maintenance 

 

For cleaning, please also refer to the notes in the operating manual for the 
fireplace insert. The notes in this installation and operating manual relate 
only to the cleaning of the heat exchanger of the H

2

O fireplace insert.  

 

Please note that cleaning may result in dirtying of the room in which the 
unit is installed, as well as of clothing worn. We recommend that you 
protect the area around the fireplace insert opening from getting dirty by 
means of a plastic or fabric sheet

 

 

 

5.1. Cleaning the heat exchanger 

 

It is essential that the heat exchanger be cleaned. Only if the heat 
exchanger is cleaned and maintained regularly and properly can it operate 
fully effectively. Generally speaking, cleaning must be carried out when 
the unit is cold. 
Since the heat exchanger cools the flue gases from the H

2

O fireplace 

insert directly, and this is bound to result in deposits on the heat exchang-
er surfaces, these must be regularly cleaned with the brush supplied. The 
frequency of cleaning depends on several factors (intensity of use, 
duration of combustion, fuel, chimney draught, etc.) and is impossible to 
state absolutely. We recommend that cleaning be carried out about every 
4 weeks. The cleaning intervals must be adapted to local conditions. 
When dry firewood is used and if our recommendations are followed, the 
cleaning intervals can be significantly extended. After the end of the 
heating season, thorough cleaning of all the components is required. 
 
The heat exchanger must generally be cleaned through the combustion 
chamber of the fire cell. This requires opening the hearth door and 
removal of the flame deflector plate (flame baffle plate) from the combus-
tion chamber. The thermally actuated flue gas valve is then removed 
through the combustion chamber 

(see Fig. 7a). 

To do this, hold the valve 

by the handle, tilt it slightly and pull down to remove. Residues may only 
be removed from the thermal flue gas valve with a cloth or brush. During 
this operation, no pressure should be exerted on the four wings of the flue 
gas valve as this could impair operation.  
 
 
 

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The heat exchanger tubes and the central duct as well as the outer 
surfaces of the heat exchanger and the smoke trap must be cleaned with 
the brush supplied or with a hand brush. The deposits will then automati-
cally fall into the combustion chamber and can be removed from it using 
items generally available on the market (an ash shovel, ash broom or ash 
vacuum cleaner). 
 
After cleaning, assembly is carried out in the reverse order. First, insert 
the thermal flue gas valve (introduce obliquely from below and place on 
the supports). Then insert the flame baffle plate so that the flue gas gap is 

  A 

support 

    B 

automatic flue gas valve with handle 

heat exchanger tubes 

flue gas valve handle 

Fig. 7a 

Fig. 7b

Summary of Contents for Mini Z1 H2O

Page 1: ...on the good name of our firm is inextricably linked to the credo of our owner Gerhard Manfred Rokossa High technical quality combined with modern design and on site customer service carried out to the...

Page 2: ...ncorporation into a heating system 38 2 11 Chimney connection connecting piece 53 2 12 Height limitation door stop 53 3 Initial commissioning 56 4 Operation 57 5 Cleaning and maintenance 59 5 1 Cleani...

Page 3: ...o modifications to the closing device are permitted No additional heat exchangers supplementary heating surfaces etc which 6 extract heat from the flue gas may be incorporated into the connecting pipe...

Page 4: ...O Varia A FDh H 2 O Unit Weight empty without accessories 235 235 245 330 350 380 395 396 kg Nominal output range 4 9 9 1 7 13 7 7 14 3 10 18 7 14 8 27 5 10 3 19 7 3 13 5 7 3 13 5 kW Nominal heat out...

Page 5: ...9 Mini Z1 H2O Fig 1a 10 Mini Z1 H2O XL Fig 1b...

Page 6: ...11 Mini Z1h H2O XL Fig 1c 12 Varia 1V H2O Fig 1d...

Page 7: ...13 Varia 1Vh H2O Fig 1e 14 Varia 1V H2O XL Fig 1f...

Page 8: ...15 Varia 1Vh H2O XL Fig 1g 16 Varia 1V H2O XXL Fig 1h...

Page 9: ...17 Varia 1Vh H2O XXL Fig 1i 18 Varia 2Lh 2Rh H2O Fig 1j...

Page 10: ...19 Varia Ah H2O Fig 1k 20 1 Abgaskuppel 2 separater Verbrennungsluftstutzen 150 mm 3 Luftstellhebel 4 T r klappbar 5 T r hochschiebbar Varia A FDh H2O Fig 1l...

Page 11: ...nstallations must be checked for leaks by means of a pressure test For this purpose the H2O fireplace insert must be aligned horizontally by adjusting the height of the fireplace insert feet or provid...

Page 12: ...any All the work must be carried out according to the VDE Regulations e g VDE 0105 VDE 0116 VDE 0100 etc and the technical connection require ments of the local power supply company 2 3 H2O fireplace...

Page 13: ...ve G feed of overheat discharge valve H rear bleed valve I return J inspection opening Fig 2a 26 Varia 1V H2O Varia 1Vh H2O To facilitate access to the water connections of the Varia 1V H2O an inspect...

Page 14: ...l sensor D bleed valve E return F feed of overheat discharge valve G discharge of overheat discharge valve Fig 2c 28 Varia 2Lh 2Rh H2O For access to the water connections of the Varia 2Lh 2Rh H2O an i...

Page 15: ...connections are clearly marked and must not be used for any other purpose The integral safety device safety heat exchanger must not be used to heat water We recommend the use of straight or angled rad...

Page 16: ...1V H2O Varia 1Vh H2O Varia 1V H2O XL Varia 1Vh H2O XL Varia 1V H2O XXL Varia 1Vh H2O XXL 600 cm 750 cm Varia 2Lh 2Rh H2O 600 cm 750 cm Varia Ah H2O 440 cm 400 cm Varia A FDh H2O 220 cm 200 cm Generall...

Page 17: ...safety device from operating Furthermore all the required safety devices must be integrated throughout the system in such a manner as to ensure non hazardous operation A separate safety valve must sti...

Page 18: ...ks at any time The discharge of the overheat discharge valve must be executed in such a manner that a test may be carried out at any time e g via an outlet with siphon 36 2 9 Thermal pump control syst...

Page 19: ...cted phase L blue wire 2 10 Incorporation into a heating system Please note The H2O fireplace insert may only be installed in a complete system after detailed planning for the entire heating system ac...

Page 20: ...ire storage tank takes just under 2 hours On very cold winter days the fireplace system may be in operation for as much as 12 hours or so The thermal energy produced in such a case is then theoretical...

Page 21: ...for the thermostat switch C feed D safety valve 3 bar E bleed valve F pump thermostat switch e g JUMO heatTHERM G Load unit H load unit fittings e g ESBE type LTC 141 I circulating pump J filling and...

Page 22: ...sor for the thermostat switch D safety valve 3 bar E return F pump thermostat switch eg JUMO heatTHERM G return H load unit fittings e g ESBE type LTC 141 I circulating pump J filling and drain fittin...

Page 23: ...valve B temperature sensor for the thermostat switch C safety valve 3 bar D bleed valve E pump thermostat switch eg JUMO heatTHERM F return G load unit fittings e g ESBE type LTC 141 H circulating pum...

Page 24: ...D return E discharge from overheat discharge valve F supply to overheat discharge valve G safety valve 3bar H bleed valve I pump thermostat switch eg JUMBO heatTHERM J return K load unit fittings e g...

Page 25: ...ermal safety heat exchanger discharge F Thermal safety heat exchanger feed G bleed valve 3 8 H safety valve I bleed valve 3 8 J pump thermostat switch e g JUMO heatTHERM K heating system connection L...

Page 26: ...valve I bleed valve 3 8 J pump thermostat switch e g JUMO heatTHERM K heating system connection L load unit M return N load unit fittings e g Thermoventiler AB type Laddomat 21 O circulating pump P fi...

Page 27: ...ening height is reduced by 50 mm If the opening height is to be further reduced reduction in opening height by 100 mm or increased maximum opening the stops on both sides of the door must be converted...

Page 28: ...and the vermiculite are slowly tempered and the moisture from any storage transport etc slowly evaporated off If this is not done the area between the glass panes may be contaminated and the fireclay...

Page 29: ...s opera tion of the latter When the flue gas temperature is sufficiently high approx 150 C the flue gas valve closes automatically This de flects the flue gas flow through the heat exchanger When the...

Page 30: ...and if our recommendations are followed the cleaning intervals can be significantly extended After the end of the heating season thorough cleaning of all the components is required The heat exchanger...

Page 31: ...nt them in the commission ing log In the event of a claim evidence of the maintenance work carried out must be submitted to the service personnel 62 6 Troubleshooting Note The fireplace must not be us...

Page 32: ...ween the manufacturer Spartherm Feuerungstechnik GmbH and the dealer intermediary They are not the same as the contract and warranty terms and conditions which the dealer intermediary passes on or may...

Page 33: ...ur or other aspects due to thermal stress improper transport and or incorrect storage 66 improper handling of fragile components such as glass and ceramics improper handling and or use lack of mainten...

Page 34: ...em bled Yes No Working pressure checked Yes No System tested for leaks Yes No All safety devices overheat discharge valve safety valve diaphragm expansion vesssel tested Yes No Please enter temperatur...

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