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10.2.2
Level-1 (Interrogation Mode) Display Functions
The level_1 is intended for use by the service engineers and is used to display
the boiler circuit temperatures, set points and errors. The information flow
diagram for level_1 is shown below in figure 10.3. Push buttons S and S3 are
used to select the parameters vertically and horizontally respectively.
The level_1 is accessed by pressing and holding push button S1 for a minimum
of 10 second(s). The controller display will go back to default level if either
there has been no input (i.e. buttons pressed) for 30s or if push button S1 is
pressed and held for 10s.
Normal Default Level_0 mode: See Section_
Level_1 mode: See Section_
Temperature readings (Table)
Digit 2 :
Digits 3 & 4 : Current temperature reading or error code
Control set points (Table)
Digit 2 :
Digits 3 & 4 : Set point corresponding to P1, P2, P3 . . .
Flow rate & Flow limits (Table)
Digit 2 :
Digits 3 & 4 : Flow rate corresponding to L1, L2, & L3
Fan speed & settings (Table)
Digit 2 :
Digits 3 & 4 : Fan speed corresponding to F1 . . . F4
Lockout error codes(Table)
Digit 2 :
Digits 3 & 4 : Error code corresponding to C1, C2 . . . CF
Blocking error codes(Table)
Digit 2 :
Digits 3 & 4 : Error code corresponding to c1, c2 & cF
Figure 10.3 - Level_1 Display Flow Diagram
Press & Hold
button S1 for 10s
Press S2
Alternatively flashing 'S' and '1 . . . 5'
Press S2
Alternatively flashing 'P' and '1 . . . 7'
Press S2
Alternatively flashing 'L' and '1 . . . 3'
Press S2
Alternatively flashing 'F' and '1 . . . 4'
Press S2
Alternatively flashing 'C' and '0 . . . F'
Press S2
Alternatively flashing 'c' and '0 . . . F'
Press S2
When the controller is in Level-1 mode, the following
information can be displayed as described below: -
i.)
current sensor temperatures
ii.)
control set points
iii.) DHW flow rate and limits
iv.) Fan speeds
v.)
Blocking error code history
vi.) Locking error code history
NOTE 1: When the display is in Level_1 and there
has been no inputs (i.e. no buttons pressed) for a
period of 20s or if button 'S1' is pressed and held
for 10s, the display will go back to level_0
Press
Press
S3
S3
S1
S2
Press S3
Press
Press
S3
S3
P1
P2
Press S3
Press
Press
S3
S3
L1
L2
Press S3
Press
Press
S3
S3
F1
F2
Press S3
Press
Press
S3
S3
C0
C1
Press S3
Press
Press
S3
S3
c0
c1
Press S3
Page 4
S5
P9
L3
F4
CF
cF
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