Switching The Appliance On/Off; Setting Up Space Heating; Programming The Fw 200 Heating Control Unit - Bosch ZBR16-3A Series Installation And Service Instructions Manual
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- Installation and service instructions manual (120 pages) ,
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52 | Commissioning
8.2
Switching the appliance ON/OFF
Startup
▶ Switch the appliance ON using the ON/OFF switch.
The display indicates the supply temperature of the hot water in °F. If
necessary, convert to °C ( Service function 0.E: Metric or US
customary units, page 63)
Fig. 61 Switching the appliance ON/OFF
When the appliance is switched ON for the first time, it
performs a once-only purging sequence. This involves
the heating zone pump switching on and off at intervals
(for approx. 4 minutes).
The display shows
temperature.
▶ Open the automatic vent [9] (only combi boiler
ZWB..-3A) and close it again when the purging sequence has finished
( page 51).
If the display shows
temperature, the trap filling function is active
( page 62).
Shutdown
▶ Switch appliance OFF using the ON/OFF switch.
The display goes out.
▶ If the appliance is taken out of service for a longer period: Observe
frost protection ( Section 8.10).
8.3
Setting up space heating
Set the maximum supply temperature based on the structure's heat loss
on design day.
Boiler high limit
Typical supply
dial
temperatures
1
approx. 95 °F
(35 °C)
2
approx. 109 °F
(43 °C)
3
approx. 122 °F
(50 °C)
4
approx. 140 °F
(60 °C)
5
approx. 153 °F
(67 °C)
6
approx. 167 °F
(75 °C)
max
approx. 194 °F
(90 °C)
Table 25 Typical supply temperatures
6 720 806 992 (2015/03)
in alternation with the supply
in alternation with the supply
Sample application
Frost protection
Radiant floor heating system
Panel radiator system
Cast iron radiator system
Baseboard and convector
system
With radiant floor heating, limit the maximum
permissible supply temperature as recommended by the
manufacturer.
▶ In order to set the maximum supply temperature, turn the boiler high
limit dial
.
4
3
2
1
Fig. 62 Switch on heat
If the burner is operating, the burner operation indicator lamp is
illuminated.
8.4
Programming the FW 200 heating control unit
Observe the operating instructions for the heating
control included in the scope of delivery. There you can
read:
▶ How to set the operating mode and the heating curve
for outdoor reset controls
▶ How to adjust the room temperature
▶ How to heat economically and comfortably
▶ How the control can be mounted in the boiler or in the
living space
9
6
3
3 3
3
2
1
Fig. 63 FW 200 heating control with front flap closed / flap opened
reset
eco
3
4
e
5
2
1
6
6
max
min
max
6 720 641 933-53.2O
12
15
h
18
24
21
h
4
1
4
5
menu
info
6
7
8
6 720 643 256-01.1O
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