Control System; General - REMEHA W40 Installation And Maintenance Instructions Manual

6.4 Control system

6.4.1 General

Press the 'mode'-key
Operating
mode (see
para. 6.4.2)
Setting
mode (see
para. 6.4.3)
digit and
Read-out
mode (see
para. 6.4.4)
digit and
blinking dot
On service level (C 12):
Speed
mode (see
para. 6.4.7)
half digits
Failure
mode (see
para. 6.4.8)
Fig. 08 Flow diagram microprocessor
'Code'-display
0-9 Flow temperature
H,L
digit
1. Required flow temperature
2. Pump setting
.
3. D.H.W. setting
A. Boiler control operation
dot
On service level (C 12):
6. Fan speed at full load (hundreds)
7. Fan speed at full load (units)
8. Fan speed at part load (hundreds)
9. Fan speed at part load (units)
b. D.H.W. cut-in temperature differential
C. Max. fan speed D.H.W.
d. Max. fan speed D.H.W.
E. Not applicable
F. Monitoring fan speed LD2
G. Forced part load after start
H. Fan speed at start
I. Max. flow temperature D.H.W.
J. D.H.W. control
L. Reserve
n. Heating cut-in temperature differential
P. Security type
1. Flow temperature
.
2. Return temperature
3. D.H.W. temperature
4. Outdoor temperature
5. Not applicable
6. Flow temperature (setpoint)
7. Room thermostat status and air pressure switch status
8. Reserve
9. Not applicable
Fan speed
or
1 Failure code
2 Operating mode during failure
3 Flow temperature during failure
4 Return temperature during failure
blinking
5 D.H.W. temperature during failure
digit
6 Outdoor temperature during failure
Press the 'step'-key
Temperature display
11