Preparing The Boiler For Operation - Buderus 800-24 User Manual

6 Commissioning
6 Commissioning
6.1

Preparing the boiler for operation

Note the operating instructions of the control unit.
 Open the control panel cover.
 Check the water pressure (fig. 1, item 3).
If the pressure is below 1.0 bar, top up water and
purge air from the system.
Max. water pressure 2.0 bar.
If water is lost frequently, have a specialist company
look for and eliminate the cause.
 Adjust the flow temperature on the controller
(fig. 1, item 1) using table 1.
 Adjust the hot water temperature on the controller
(fig. 1, item 2) using table 2.
 Use the control unit or remote control unit to set
the room temperature to maximum.
 Open the gas service valve: push in and turn to the
left in vertical position (fig. 1, item 4).
 Turn the mains switch (fig. 1, item 5) into position "I".
The boiler runs through the start-up program and the
burner is ignited after approx. 30 seconds.
 Close the control panel cover.
 Use the control unit or remote control unit to adjust
the room temperature to the desired value.
Control unit
Digital Room Controller
HW4201, RC
ON/OFF temperature controller, 24 V
Tab. 1 Flow water temperature
* Basic setting: the actual flow water temperature is
determined by the digital control system.
Have specific system settings adjusted on the digital
control system by the specialist heating system com-
pany.
Application
Minor convenience, small heat losses
Average convenience, medium heat losses
Optimum convenience, normal heat losses
Tab. 2 Hot water temperature
4 Wall-mounted condensing gas boiler Buderus 800 - Subject to modifications resulting from technical improvements!
Application
i
RT Floor heating
Radiator heating
Floor heating
Radiator heating
5
I
0
1
1
3
fig. 1 Control panel, pressure display, gas service valve
Controller position / flow temperature
1 (40
8 (80 °C, factory setting)*
1 (40
6 (40 °C, new building) up to
8 (80 °C, old building)
Controller Hot water temperature of external reservoirs
position
1
5
10
11
KW
0 1
1 2
2
10
1 10
1
10
C)*
°
C)
°
27 C
°
40 C
°
60 C
°
4