Junkers MKB 320-3 A Bruksanvisning

Junkers Pannor & pannor MKB 320-3 A

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Wärme fürs Leben
Für den Fachmann
Warmth for life
For professionals
Technical guide
Gas condensing boiler
SUPRAPUR
Single boiler: Cascade:
KBR 120-3 A MKB 240-3 A
KBR 160-3 A MKB 320-3 A
KBR 200-3 A MKB 400-3 A
KBR 240-3 A MKB 480-3 A
KBR 280-3 A MKB 560-3 A
Output range from
28 kW to 560 kW
6 720 645 817 (2010/09)
Contents
6 720 645 817 (2010/09)
2
Contents
1 System schemes . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 System scheme 1: unmixed heating
circuit, low loss header . . . . . . . . . . . . . . 4
1.2 System scheme 2: unmixed underfloor
heating circuit, low loss header . . . . . . . 6
1.3 System scheme 3: mixed heating
circuit, DHW circuit, low loss header . . . 8
1.4 System scheme 4: one unmixed heating
circuit, one mixed heating circuit,
low loss header . . . . . . . . . . . . . . . . . . . 10
1.5 System scheme 5: two mixed
heating circuits, one DHW circuit,
low loss header . . . . . . . . . . . . . . . . . . . 12
1.6 System scheme 6: one unmixed heating
circuit, two mixed heating circuits,
low loss header . . . . . . . . . . . . . . . . . . . 14
1.7 System scheme 7: one unmixed heating
circuit, three mixed heating circuits,
low loss header . . . . . . . . . . . . . . . . . . . 16
1.8 System scheme 8: two mixed
heating circuits, two DHW circuits,
low loss header . . . . . . . . . . . . . . . . . . . 18
1.9 System scheme 9: one unmixed
heating circuit, one DHW circuit,
low loss header, cascade . . . . . . . . . . . 20
2 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.1 Appliance parameters . . . . . . . . . . . . . . 22
2.1.1 Single appliance Suprapur KBR ... . . . . . 22
2.1.2 Factory-prepared cascade
Suprapur MKB ... . . . . . . . . . . . . . . . . . . 23
2.2 Dimensions and minimum clearances . . 24
2.2.1 Single appliance Suprapur KBR ... . . . . . 24
2.2.2 Factory-prepared 2-boiler
cascade MKB ... . . . . . . . . . . . . . . . . . . . 25
2.3 Installed dimensions . . . . . . . . . . . . . . . 27
2.3.1 Single appliance Suprapur KBR ... . . . . . 27
2.3.2 Factory-prepared cascade MKB ... . . . . . 28
2.4 Pressure drop, water side . . . . . . . . . . . 29
2.5 Boiler efficiency . . . . . . . . . . . . . . . . . . . 30
2.6 Standby loss . . . . . . . . . . . . . . . . . . . . . . 30
2.7 Flue gas temperature . . . . . . . . . . . . . . . 31
2.8 Conversion factor for alternative
system temperatures . . . . . . . . . . . . . . 31
3 Appliance layout . . . . . . . . . . . . . . . . . . . . . . . . 32
4 Product description . . . . . . . . . . . . . . . . . . . . . 33
4.1 Gas condensing boiler with
aluminium heat exchanger . . . . . . . . . . . 33
4.1.1 Types and output . . . . . . . . . . . . . . . . . . 33
4.1.2 Possible applications . . . . . . . . . . . . . . . 33
4.1.3 Benefits in brief . . . . . . . . . . . . . . . . . . . 33
4.1.4 Characteristics and special features . . . 34
4.2 Gas burner . . . . . . . . . . . . . . . . . . . . . . . 34
4.2.1 Burner and burner control unit . . . . . . . . 34
4.2.2 Burner function . . . . . . . . . . . . . . . . . . . . 35
4.3 Delivery method . . . . . . . . . . . . . . . . . . . 35
5 Engineering information and sizing
the heat source . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.1 Operating conditions . . . . . . . . . . . . . . . 36
5.2 Water quality . . . . . . . . . . . . . . . . . . . . . 36
5.3 Important hydraulic system
components . . . . . . . . . . . . . . . . . . . . . . 39
5.3.1 Hydraulics for maximum utilisation
of the condensing effect . . . . . . . . . . . . 39
5.3.2 Underfloor heating system . . . . . . . . . . . 39
5.3.3 Diaphragm expansion vessel . . . . . . . . . 39
5.4 Condensate drainage . . . . . . . . . . . . . . . 41
5.4.1 Condensate drain from the
condensing boiler and the flue . . . . . . . 42
5.4.2 Condensate drain from a
moisture-resistant chimney . . . . . . . . . . 42
6 Regulations and operating conditions . . . . . . . 43
6.1 Extracts from regulations . . . . . . . . . . . . 43
6.2 Fuels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.3 Operating conditions . . . . . . . . . . . . . . . 43
6.4 Combustion air . . . . . . . . . . . . . . . . . . . . 44
6.5 Combustion air supply . . . . . . . . . . . . . . 44
6.6 Siting combustion equipment . . . . . . . . 45
6.7 Sound insulation . . . . . . . . . . . . . . . . . . . 45
6.8 Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . 45
Contents
6 720 645 817 (2010/09) 3
7 Accessories / Services . . . . . . . . . . . . . . . . . . . 46
7.1 Neutralising systems . . . . . . . . . . . . . . . 46
7.1.1 Neutralising system no. 1605 . . . . . . . . . 46
7.1.2 Neutralising system no. 1606 . . . . . . . . . 47
7.1.3 Condensate lifting system no. 1620 . . . 47
7.2 Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.3 Dirt traps . . . . . . . . . . . . . . . . . . . . . . . . 48
7.4 Low loss header . . . . . . . . . . . . . . . . . . . 48
7.5 Boiler safety set . . . . . . . . . . . . . . . . . . . 49
7.6 Safety equipment to DIN-EN 12828 . . . . 49
7.7 Shut-off set combined
with check valve . . . . . . . . . . . . . . . . . . 50
7.8 Boiler flue connection . . . . . . . . . . . . . . 50
7.9 Ventilation air connection bend . . . . . . . 50
7.10 Cleaning tool . . . . . . . . . . . . . . . . . . . . . 50
7.11 Services . . . . . . . . . . . . . . . . . . . . . . . . . 50
8 Heating controls . . . . . . . . . . . . . . . . . . . . . . . . 51
8.1 Selection aids for controller
application . . . . . . . . . . . . . . . . . . . . . . 51
8.2 Overview of the BUS-regulated
controller functions . . . . . . . . . . . . . . . 52
8.3 Weather-compensated controllers . . . . . 53
8.4 Accessory for 2-wire BUS controller . . . 56
8.5 Cascade switching module
(0-10 V interface for systems
with Direct Digital Control (DDC)) . . . . 58
8.6 Accessories, weather-compensated
controller - remote control . . . . . . . . . . 58
8.7 Controller accessories -
outside temperature sensors . . . . . . . . 59
9 DHW heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
9.1 General . . . . . . . . . . . . . . . . . . . . . . . . . 60
9.2 DHW cylinders series SK ... . . . . . . . . . . 65
9.3 DHW cylinders series SE ... . . . . . . . . . . 69
10 Installation accessories . . . . . . . . . . . . . . . . . . 72
10.1 Connection accessories . . . . . . . . . . . . . 72
10.2 Cascade accessories . . . . . . . . . . . . . . . 73
10.3 Other accessories . . . . . . . . . . . . . . . . . 74
11 Flue systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
11.1 Flue system . . . . . . . . . . . . . . . . . . . . . . 75
11.1.1 Requirements . . . . . . . . . . . . . . . . . . . . . 75
11.1.2 Plastic flue system . . . . . . . . . . . . . . . . . 76
11.1.3 Flue gas parameters Suprapur –
single boiler KBR ... . . . . . . . . . . . . . . . . 77
11.1.4 Flue gas parameters Suprapur –
factory-prepared 2-boiler cascade
MKB ... . . . . . . . . . . . . . . . . . . . . . . . . . . 77
11.1.5 Sizing plastic flue systems (open flue) . . 77
11.2 Flue systems for open flue operation . . . 78
11.2.1 General information for open
flue operation . . . . . . . . . . . . . . . . . . . . 78
11.2.2 Ventilation air/flue gas line . . . . . . . . . . . 79
11.2.3 Open flue routing via flue inside
a chimney shaft (B23) . . . . . . . . . . . . . . 80
11.2.4 Balanced flue routing, vertical
via the roof (B23) . . . . . . . . . . . . . . . . . . 82
11.2.5 Open flue routing via flue
over a facade (B23) . . . . . . . . . . . . . . . . 84
11.3 Flue systems for balanced
flue operation . . . . . . . . . . . . . . . . . . . . 86
11.3.1 General information for balanced
flue operation . . . . . . . . . . . . . . . . . . . . 86
11.3.2 Balanced flue routing via flue
inside a chimney shaft whilst
drawing in combustion air in
countercurrent (C93) . . . . . . . . . . . . . . . 88
11.3.3 Balanced flue routing via flue
inside a chimney shaft whilst
drawing in combustion air through
a separate pipe (C53 ) . . . . . . . . . . . . . . 90
11.4 Visual overview of flue accessories . . . . 92
11.4.1 Flue accessories Ø 125 mm . . . . . . . . . . 92
11.4.2 Flue accessories Ø 160 mm . . . . . . . . . . 97
11.4.3 Flue accessories Ø 200 mm . . . . . . . . . 103
11.4.4 Flue accessories Ø 250 mm . . . . . . . . . 109

Produktspecifikationer

Varumärke: Junkers
Kategori: Pannor & pannor
Modell: MKB 320-3 A

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