34
Henrad SEC FF -
Installation
45 INITIAL LIGHTING
INSTALLATION
1.
Check that the system has been filled and that the
boiler is not airlocked. Ensure the automatic air vent
screw is open (N)
2.
Check that all the drain cocks are closed and that the
CH and DHW isolating valves are OPEN.
3.
Check that the electrical supply is OFF.
4.
Check that the gas service cock (
I
) is OPEN.
5.
Remove screw and swing the control panel down .
6.
Remove the screw in the burner pressure test point (C)
and connect a gas pressure gauge via a flexible tube.
7.
Swing the control panel into its working position.
8.
Ensure that the external CH controls are calling for heat
and set the switch (K) to ON.
9.
Switch the electricity supply ON.
10.
Set the switch (J) to ON.
11.
The boiler ignition sequence should now start.
Note.
A self-check cycle will take place whenever the RESET
button on the control panel is pressed, and also once
every 24 hours without a call for heat, to ensure
movement of the components once a day.
LEGEND
A.
Gas control valve
B.
Inlet pressure test point
C.
Burner pressure test point
D.
Offset adjuster (sealed)
E.
Fan pressure test point (Hi)
F.
Fan pressure test point (Lo)
G.
Control panel
H.
Display board
I.
Gas service cock (hidden)
J.
On/off switch
K.
Central heating (CH) on/off switch
L.
Central heating pressure gauge
M.
Flue thermostat (behind sealing panel)
N.
Automatic air vent
O.
Cover plate
Sequence
Boiler Status
0
No heat request.
1
Fan pre-purge for 8 seconds.
2
Gas valve opens and spark commences.
3
Burner ignition and flame detection (CH).
4
Burner ignition and flame detection (DHW)
Control panel
: contains digital display and 6 buttons
Button
Function
RESET
Reset of system
MODE
Mode of display
STEP
Step within the mode
STORE
Storage of setting
UP(+)
Increase of setting
DOWN (-)
Decrease of setting
INST
ALLA
TION
Содержание Henrad SEC 80FF
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Страница 32: ...32 Henrad SEC FF Installation INSTALLATION 42 PICTORIAL WIRING DIAGRAM INSTALLATION...
Страница 58: ...58 Henrad SEC FF Installation 89 SHORT PARTS LIST SHORT LIST OF PARTS...
Страница 61: ...61 Henrad SEC FF Installation 92 BOILER CASING ASSEMBLY SHORT LIST OF PARTS...