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Contents
Copyright (optional information)
6 720 643 068 (2011/06)
Contents
1
Guideline to symbols and safety instructions . . . . 4
1.1
Guideline to symbols . . . . . . . . . . . . . . . . . 4
1.2
Safety instructions . . . . . . . . . . . . . . . . . . . 4
2
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1
ZBR - Boiler for space heating and
loading of indirect fired DHW tanks . . . . . .6
2.2
ZWB - Combi boiler for space heating and
DHW generation . . . . . . . . . . . . . . . . . . . . .7
3
Information about the appliance . . . . . . . . . . . . . . 8
3.1
Proper use . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2
Overview of boiler types . . . . . . . . . . . . . . 8
3.3
Rating plate . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4
Appliance description . . . . . . . . . . . . . . . . 9
3.5
Accessories . . . . . . . . . . . . . . . . . . . . . . . 10
3.6
Product dimensions and minimum
clearances . . . . . . . . . . . . . . . . . . . . . . . . .11
3.7
Appliance layout heating boiler ZBR..-3A . 12
3.8
Appliance layout combi boiler ZWB..-3A . 14
3.9
Electrical wiring heating boiler ZBR..-3A . 16
3.10
Electrical wiring combi boiler ZWB..-3A . 18
3.11
Technical data heating boiler ZBR16-3A... 20
3.12
Technical data heating boiler ZBR28-3A... 22
3.13
Technical data heating boiler ZBR35-3A... 24
3.14
Technical data heating boiler ZBR42-3A... 26
3.15
Technical data combi boiler ZWB28-3A... 28
3.16
Technical data combi boiler ZWB42-3A... 30
3.17
Condensate composition . . . . . . . . . . . . . 32
4
Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.1
Compliance with standards and
regulations . . . . . . . . . . . . . . . . . . . . . . . .33
4.2
Operating limits of the boiler . . . . . . . . . 33
4.3
Additional regulations for installation in
Massachusetts . . . . . . . . . . . . . . . . . . . . .34
5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.1
Notes on installation and operation . . . . 35
5.1.1
Notes on installation and operation . . . . 35
5.1.2
Other important information . . . . . . . . . . 36
5.2
Comparing the size of the integrated
expansion vessel . . . . . . . . . . . . . . . . . . . 37
5.3
ZBR..-3A appliances (heating boilers):
Selecting an expansion vessel . . . . . . . . . 38
5.4
Selecting the installation location . . . . . . 38
5.5
Pre-installing pipes . . . . . . . . . . . . . . . . . 39
5.6
Mounting the appliance . . . . . . . . . . . . . 41
5.7
Installing a low water cut off (LWCO) . . 42
5.8
Connecting flue gas accessories . . . . . . . 43
5.8.1
Installation of the exhaust and air
intake system . . . . . . . . . . . . . . . . . . . . . . 44
5.8.2
Approved examples of horizontal and
vertical venting installation . . . . . . . . . . . 47
5.8.3
Vent and combustion air pipe lengths . . 50
5.9
Testing gas and water connections
for leaks . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6
Making the electrical connections . . . . . . . . . . . 52
6.1
General notes . . . . . . . . . . . . . . . . . . . . . 52
6.2
Low voltage electrical connections in the
Heatronic boiler control . . . . . . . . . . . . . . 52
6.2.1
Open the Heatronic boiler control . . . . . 52
6.2.2
Connecting the outdoor temperature
sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
6.2.3
Connecting the DHW tank temperature
sensor (only heating boiler ZBR..-3A) . . . 53
6.2.4
Connecting additional accessories . . . . . 54
6.3
Electrical connections in the junction box
(120 VAC) . . . . . . . . . . . . . . . . . . . . . . . . . 55
6.3.1
Mounting rails for junction box . . . . . . . . 55
6.3.2
Connecting an external heating zone
pump or DHW recirculation pump . . . . . . 55
6.3.3
DHW tank loading pump or 3-way valve
with spring return (only heating boiler
ZBR..-3A) . . . . . . . . . . . . . . . . . . . . . . . . . 56
6.3.4
Connecting mains power supply . . . . . . . 56
6.4
Connecting the LWCO device . . . . . . . . . 57