HP52
SL 2.0
Differential thermostat
Handbook
Mess. Value
Meaning
Note
SEt.d
3.0° ° SET inside-outside function (OUT 1)
*1)
diF.d
0.2° °SET 2 in-out differential (OUT 1)
*1)
diF.2
0.2° °SET 2 inside differential (OUT 2)
*1)
t.oFF
1"
Time of minimum off relay 1 (anti-oscillation)
*1)
tEnP
=1
Temperature representation (=1 °C, =2 °F)
*2)
Ad.t1
0.0° °C Outside temperature sensor correction (+ or -)
*3)
Ad.t2
0.0° °C Inside temperature sensor correction (+ or -)
*3)
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
SET 2
to confirm.
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.
COSt PROGRAMMING (System constants)
*1) For more details see Operating Diagrams.
*2) tEnP =1 : °C Temperature range.
*3) You can correct the readings on the various sensors (+ or -).
tEnP =2 : °F Temperature range.
SET 1 TEMPERATURE SETTING (OUTSIDE).
Press SET 1 (key lamp flashes):
This message will be displayed instead of the
°Set 1 temperature value .
Press + or - to modify. Press SET 1 to confirm.
SET 2 TEMPERATURE SETTING (INSIDE).
Press SET 2 (key lamp flashes):
This message will be displayed instead of the
°Set 2 temperature value .
Press + or - to modify. Press SET 2 to confirm.
Example
SEt.1 = 0.0°
Example
SEt.2 = 6.0°
MAIN SETTINGS (Run Mode).
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.
07.01.13
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 = 0.0° SEt.2 = 6.0° The COSt values are shown in COSt paragraphs.
PRESET PROGRAMS
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.
MANUAL MODE
OPERATIVE DIAGRAMS
*1) Relay 1 turn off if
T.Outside < SEt.1 (COOL
1 lamp flashes) and re-
enabled if T.Outside >=
SEt.1 for more then
t.oFF.
OUT
2
diF.2
SEt.2
COOL 2
T.inside
HEAT 2
SEt.1
OUT
1
T.ins-T.out
diF.d
VENTILATION ON
*1
VENTILATION OFF
How to connect the sensors
Connect the provided sensors as shown in the diagram.
For remote connections use a standard 0.5-square millimetre
two-pole wire for each sensor, taking great care over the
connections, by insulating and sealing the joins carefully. -O.C.- is
displayed when the temperature sensor wiring is open, -S.C.- is
displayed when the temperature sensor wiring is short circuit.
INSTALLATION
How to connect the line
Connect line on terminals L-N.
How to connect the contacts
Connect terminals on the terminal block (contacts up to 4AMP.AC1)
to the loads as shown in the diagram.
* Other power voltage if you required
230V LINE *
HEAT CONTACT 2
COOL CONTACT 2
OUTSIDE TEMP.
INSIDE TEMP.
H=1500A
H=1500A
FUSE 4A T
FUSE 4A T
SX PROBE
SX PROBE
VENTILATION
HEAT CONTACT 2
COOL CONTACT 2
OUTSIDE TEMP.
INSIDE TEMP.
H=1500A
H=1500A
FUSE 4A T
FUSE 4A T
SX PROBE
SX PROBE
HP52
The lights situated at the bottom of the display show the state of the relay.
STATE INDICATION LAMPS
.
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R
.
N
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1
(
T
A
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H
1
5
-
4
)
1
(
L
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t
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V
1
4
-
3
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2
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T
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O
2
T
A
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H
2
7
-
6
)
2
(
L
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t
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p
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2
L
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2
8
-
7
