17
REMOTE SENSORS (AS AN OPTION)
As an option, there are available two types of remote sensors:
-
REMOTE DUCT SENSOR: The sensor should be located at the return air duct
, recording the room temperature continuously.
-
REMOTE
AMBIENT SENSOR: The sensor should be located at the room which has to be conditioned.
Both sensors should be used when the terminal-thermostat can be located on a position where, the ambient temperature could
not be measured with accuracy Example: High ceiling rooms, or terminal-thermostat on a place different from the room to be
conditioned.
To install them, proceed as follow:
STEP 1
:
Connect the probe to AVSS y B1 terminal located on the sub-base of the terminal-thermostat.
STEP 2:
Move the jumper J1, located on the power board of the terminal-thermostat, follow the electrical diagram supplied with the unit.
STEP 3:
Change parameter S8 to 1.
THERMOSTATIC FREE COOLING (OPTION).
This option approaches external conditions for cooling mode.
The free cooling is enabled when outdoor temperature is below indoor temperature. For these conditions air intake gate is
opened.
Two thermostats on the air discharge are incorporated for the safety of the unit:
- One of them for 4ºC, closes the gate in order to prevent freezing.
- The other one for 10ºC, opens the gate to take advantage from outside air.
These thermostats only work when the free cooling is enabled.
Programming option is included on it. You can connect as an option remote sensors.
To use this option an outdoor probe is connected.
If it does not work properly, please check the jumper according to the electrical wiring diagram.
1
STEP 4:
(Only for the optional remote duct sensor)
Select CONT as the fan operating mode, in order that the room temperature will be detected continuously, the
display shows the symbol
See page 5 of this manual to select the fan operating mode.
Power board of the
terminal-thermostat
Power board of terminal-thermostat
J1
Standard position
Change position
Sub-base
Remote duct sensor
ref: NTCO 15WP00 IP68
Sub-base
Remote ambient sensor
ref: ASW TC 11000
T+
T-
AVSS
B1
2
Use two-lead screen wire with
section of 1mm ,
no longer than 20 meters.
ntc ntc
M
22C
T-
T+
24v
B2
OT
PCB
GND
B3
ID3
IDCO
ID2
ID1
GND
90 91
T+
T-
GO
G
30
31
mode
hold
resume
fan
set
clock
RC
AUTO
B1
AVs
21C
