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HP12
SL 4.0
Double-level thermostat
Handbook
MAIN SETTINGS (Run Mode)
SET 1 TEMPERATURE SETTING.
Press SET 1 (key lamp flashes):
This message will be displayed in alternance with the
°Set 1 temperature value .
Press + or - to modify. Press SET 1 to confirm.
SET 2 TEMPERATURE SETTING.
Press SET 2 (key lamp flashes):
This message will be displayed in alternance with the
°Set 2 temperature value .
Press + or - to modify. Press SET 2 to confirm.
VIEWING TEMPERATURE RECORDING
After pressing +
After pressing -
Recorder values are stored in a permanent memory. To clean memory keep
for more than 3 seconds.
Before cleaning the CLEA message will be displayed.
COSt PROGRAMMING (System constants)
These settings refer to the operation mode of the system and must be made on initial startup. Press
- / +
at the same time for at least one second: the message C.O.S.t. will be displayed.
Press than repeatedly
SET 2
until the message regarding the chosen variable is displayed (see table
below): variable's value and message will be displayed.
Press + or - to set a new value and then press
The next system constant will then appear.
You can press
SET 2
for at least 2 seconds to exit and return to the Run Mode.
M
e
s
. s
V
a
u l
e
0
2 .
°
d
F i
1 .
°
C
S
E
T
1
d
f i
e f
e r
t n
l a i
0
2 .
°
d
F i
2 .
°
C
S
E
T
2
d
f i
e f
e r
t n
l a i
E t
n
P
=
1
e T
m
p
e
a r
u t
e r
e r
p
e r
s
e
A
. d
E t
0
°
°
C
n I
p
t u
e t
m
p
e
a r
u t
e r
r
Y
O .
C
=
1
R
e
a l
s y
t s
t a
s u
f i
s
e
s n
r
Y
S .
C
=
0
R
e
a l
s y
t s
t a
s u
f i
s
e
s n
*1) For more details see Operating Diagrams.
*2) tEnP =1 : °C Temperature range.
tEnP =2 : °F Temperature range.
*3) Sensor reading can be adjusted by pressing the + or - keys
*4) =0 Relays De-Energised, =1 Relays Energised.
Example
Example
will be displayed followed by
°Maximum Temperature Recording.
will be displayed followed by
°Minimum Temperature Recording.
pushed + keys
SET 2
to confirm.
M
e
a
n
n i
g
t n
t a
o i
n
= (
1
°
, C
=
2
°
) F
s
e
s n
r o
c
r o
e r
t c
o i
n
+ (
r o
) -
r o
O
p
e
n
i C
c r
i u
( t
O
C .
)
r o
S
h
o
t r
i C
c r
t i u
S (
C .
)
PRESET PROGRAMS
At delivery this processor is programmed with the following (variable) settings.
To return to these settings at any time.
Power off the processor, press SET 2 key and keep it pressed giving power on: release SET
2 key when on the screen boot message appears.
SEt.1 = 20.0°
MANUAL MODE
In some start-up conditions may be useful to work in "hand" mode.
Power off the processor, press + key and keep it pressed giving power on:
HAnd message will be displayed (release now + key).
Press + until is displayed number required to be handed (see table relays "N° Relay ") and press
SET 2 for activing relay.
Pressing again + for increase relay number previous relay is disactivated.
You can press SET 2 key for a least two seconds to escape and return to the Run Mode.
SEt.1 = 20.0°
STATE INDICATION LAMPS
The lights situated at the bottom of the display show the state of the relay.
L a m p .
HEAT
(1)
COOL
(1)
HEAT
(2)
SEt.2 = 25.0°
COOL
(2)
OPERATING DIAGRAM
INSTALLATION
How to connect the line
Connect 230V line on terminals L-N.
Protect supply with adequate fuse.
How to connect the contacts
Connect terminals on the terminal block
(contacts up to 4AMP.AC1) to the loads as shown in the diagram.
N
o
e t
How to connect the sensors
1 *
Connect the provided sensor as shown in the diagram.
1 *
For remote connections use a standard 0.5-square millimetre
2 *
two-pole wire for each sensor, taking great care over the
connections, by insulating and sealing the joins carefully. -O.C.- is
3 *
displayed when the temperature sensor wiring is open, -S.C.- is
4 *
displayed when the temperature sensor wiring is short circuit (exiting
4 *
condition of relays in this case is that setted in Cost, rY.OC - rY-SC).
As it company policy to continually improve the products the Manufacturers
reserve the right to make any modifications thereto without prior notice. They
cannot be held liable for any damage due to malfunction.
SEt.2 = 25.0°
The COSt values are shown in COSt paragraphs.
S t a t e
HEAT
1
Output
On
COOL
1
Output
On
HEAT
2
Output
On
COOL
2
Output
On
diF.1
diF.2
HEAT
HEAT
OUT
OUT
1
2
COOL
SEt.1
SEt.2
TEMP.
* Other power voltage if you required
N°
Relay
C o n t a c t s
1
3 - 4
1
4 - 5
2
6 - 7
2
7 - 8
COOL
TEMP.
HP12
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