CALEFFI 161010 Manual - Página 6

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Connect the RPS Grundfos Direct Sensor™ (pressure sensor) to the input S6.
S7 can be used as an input for a potential-free switch for the cooling mode.
Pins 2 and 3 come with a pluggable cable link already connected. If the contact is
closed (cable link connected), the heating mode will be active when demanded. If
the contact is open (cable link not connected) and the cooling option is activated,
the cooling mode will be active when demanded.
In order to connect a switch, cut the cable link and connect the switch to both
wires.
The terminal marked PWM A is the control output for a high-effi ciency pump.
If the Central Outdoor Sensor is to be used, connect it to the terminals marked
VBus with either polarity.
161010
Sensors
R4|1 (1) A 30V
GND
R4
The mains connection is at the terminals:
Neutral conductor N
Conductor L
Protective conductor ⏚
Î Use a cable with a cross section of at least 0.75 mm² of the H05VV-F type for
connecting the device to the mains.
Note:
The connection depends on the system layout selected (see page 7).
The auxiliary terminals can be used instead of R4 as the mixer switch for the heat
generator, if a voltage higher than 30 V is applied.
Antifreeze: Standard function – if the temperature at S2 falls below 7 °C , the con-
troller activates the pump for 30 min, in order to reach 20 °C.
Outdoor sensor: If the outdoor temperature sensor is defective, 0 °C is used as
the reference value.
6
T4A
Manufactured
100 ... 240 V
by RESOL - TYPE SLT
50-60 Hz
Heiskampstr. 10
D-45527 Hattingen
IP 20
R1-R3|1 (1) A 240 V~
S6
L
S7
N
3

Operation and function

3.1 Buttons and adjustment dial

The controller is operated via 2 buttons and 1 adjustment dial (Lightwheel
the display:
Left button (⟲) - escape button for changing into the previous menu
Right button (✓) - confi rming / selecting
Lightwheel
- scrolling upwards / scrolling downwards, increasing adjustment
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values / reducing adjustment values

3.2 Adjustment values and user code

Adjustment values will only be available if the correct user code has been entered.
In order to access the user code enquiry from the home screen, press the right
button (✓) for approx. 3 s.
User code: 0322
If the user code has been entered, the adjustment values menu will be displayed.
In order to get back to the home screen, press the left button (⟲).
If no button is pressed for 5 min, the controller will display the home screen.
Note:
The user code has to be entered again each time you wish to access the
adjustment values menu.
) below
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