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www.sauter-controls.com
Electronic heating controller
en Quick reference
SAUTER equitherm
®
EQJW245
General
1
Congratulations! You have chosen a Sauter controller – a quality
product from one of the leading manufacturers of control products
for the HVAC industry. Your heating controller combines simplicity of
operation with ultra-modern microprocessor technology. Follow these
operating instructions so that you can adapt the device to your needs.
Key
1.1
Factory setting
sek.
Secondary side
BW
Domestic water
T
A
Outside temperature
CP
Communication parameters
T
B
Boiler temperature
HK
Heating circuit
T
F
Flow temperature
Imp
Impulse
T
R
Room
temperature
KW
Chilled water
T
RF
Return temperature
LP
Charge pump
T
W
Temperature of
domestic water
prim.
Primary side
SP
SERVice parameters
UP
Heating pump
Flashing value in display denotes:
special/unusual status
•
value that can be changed
•
Indicators and operating controls
2
Front view of EQJW245
2.1
2
1
1
°C
sec
h
equitherm
®
EQJW245
1
2
PROG
PROG
1
2
LOG
PROG
PROG
1x
ESC
OK
STOP
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
2
1
3
4
B1
1423
1
Rotary switch
2
Display
3
Input knob
4
ESC key
LCD
2.2
0 1 2 3 4 5 6 7 8..........21 22 23 24
Times for normal mode on the current day
Time, date, setpoints, actual values etc.
Automatic mode according to weekly and calendar
switching programme. Flashing: limited/unlimited
temperature change
Controller operating in normal mode
Controller operating in reduced mode
Controller operating in standby mode.
Flashing: frost protection is active
Sensor is faulty
Heating pump for HC1, HC2 is switched on
,
Control unit 1, 2 is opened (
c
) or closed (
d
)
Setpoint temperature.
Flashing: actual temperature is displayed
Flow temperature
Outside temperature
Room temperature
Return temperature
Charge temperature of domestic water
Domestic-water temperature 1
Domestic-water temperature 2
,
Display refers to HC1 (–) or HC2 (=)
Controller is in summer mode
Calendar switching programme is currently active
Domestic water.
Flashing: increased temperature
Charge pump is switched on
An error has occurred
Rotary switch for heating circuit 1 (top)
2.3
Operating modes
Inputs
Automatic mode as per
switching programme
Setpoint adjustment,
normal mode
Controller is continuously in
normal mode
Setpoint adjustment,
reduced mode
Controller is continuously in
reduced mode
Enter weekly and calendar
programme for heating
Controller is continuously in
standby mode
(Un)limited temperature
change
Access to manual mode for
heating
Access to SERVice,
commissioning and
communication level
Rotary switch for heating circuit 2 (middle)
2.4
Operating modes
Inputs
Automatic mode as per
switching programme
Setpoint adjustment, normal
mode
Controller is continuously in
normal mode
1
Setpoint adjustment,
reduced mode
Controller is continuously in
reduced mode
Enter weekly and calendar
programme for heating
Controller is continuously in
standby mode
2
(Un)limited temperature
change
Access to manual mode for
heating
Access to logbook
1
Normal mode corresponds to nominal mode as per EN12098-1
2
Standby mode means that the heating is switched off and the anti-
frost function is active.
Contents:
1. General
2. Indicators and operating controls
3. Putting into service (by a technician)
4. How to operate (user)
