Enthalpy probes

Enthalpy probes
Enthalpy sensors (Optional)
Options and Accessories, Installation manual
Ref.: N-40260 1107M
Index
Index
1
Enthalpy sensors (Optional).................................................................................................... 1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
General Information...............................................................................................................
General measurements..........................................................................................................
Technical specifications.........................................................................................................
Assembly................................................................................................................................
Operations..............................................................................................................................
Installation..............................................................................................................................
Wiring diagram.......................................................................................................................
EC Declaration of Conformity.................................................................................................
2
2
3
3
3
3
5
7
i
Index
ii
1
Enthalpy sensors (Optional)
1
1.1
Enthalpy sensors (Optional)
General Information
1.1 General Information
Allows for the fitting of enthalpy sensors in installations requiring enthalpy control of the return and outside
air through the economiser.
1.2 General measurements
Enthalpy sensor
Measurements in mm.
Plate support
Measurements in mm.
Economiser control board
2
Enthalpy sensors (Optional)
Technical specifications
1
1.3
1.3 Technical specifications
This accessory includes the following components:
1 Enthalpy sensors (C7400A).
2 Plate supports for the sensors.
3 Connection cables for the sensors.
4 Securing flanges, cables and screws.
1.4 Assembly
The enthalpy sensors are fitted to the separator panel on the side of the economiser.
Fit one enthalpy sensor in the holes made on the return side and another on the outside using the screws
supplied.
Pass the red and white wires from the economiser control board to the sensors and connect them ac‐
cording to the wiring diagram.
Fit the ENTALP bridge to control board A4.
Disconnect the outside sensor B17 and keep the return sensor B15 connected.
The enthalpy sensors must be located so that their terminals + (red wire) and S (white wire) are on the
right and the two small sensor deflectors are at the top.
1.5 Operations
Favourable conditions in enthalpy mode are when the outside enthalpy is at least 5% below the return
enthalpy and the outside temperature is below 20 °C.
1.6 Installation
NOTE
Bear in mind the current regulations in the country
where the equipment is to be installed. On all ac‐
counts, the national regulations established must be
respected.
1 Disconnect the power supply to the air condition‐
ing unit.
2 Remove the access panel to the return air filters
and the panels on the outside and return side.
3
1
1.6
Enthalpy sensors (Optional)
Installation
3 Fit the enthalpy sensors on the separator panel
and connect the cables supplied according to the
wiring diagram.
A.
Return temperature sensor
B.
Outside temperature sensor
C.
Enthalpy sensor (OA) optional
D.
Enthalpy sensor (RA) optional
E.
Support
1.
Holes for flanges
2.
Cable ducting hole
3.
Bushing
4 Disconnect the outside sensor B17 (connector J3)
and keep the return sensor B15 (connector J13)
connected on board A4 (economiser).
5 Fit the ENTALP bridge (S2) on control board A4 to
select operating with enthalpy sensors.
6 Connect the electricity supply to the air condition‐
ing unit.
7 Check that the green LED on board A4 remains lit
and press the test button on the YKN2 Open board
(A1) for more than three seconds to search for and
configure accessories. When the search and con‐
figuration process starts, the red LED on the board
will light up and will remain on until the operation
is completed. Once switched off, check that the
green LED (V1) on board A4 is flashing to indicate
that the accessory has been configured.
8 The outside temperature must be below 20 °C to
check correct electrical operations. Otherwise,
cool the outside sensor connected to the YKN2
Open board (A1). Make a cold request from the
thermostat or from the YKtool. Then cool the en‐
thalpy sensor on the outside. The yellow LED (V2)
must light up and the outside damper must open.
Finally, cool the enthalpy sensor on the return
side. The yellow LED (V2) must switch off and the
return damper must open. Incident 4, 1, 5 is indi‐
cated if the enthalpy sensors are faulty.
9 Check that the cables are firmly secured to their
connection terminals.
•
•
4
CAUTION
Loose connection terminals produce overheating
of cables and terminals. The unit is working incor‐
rectly and there is a risk of fire.
Do not turn on the general switch on the unit or
start the unit until all installation work has been
completed.
Enthalpy sensors (Optional)
Wiring diagram
1
1.7
1.7 Wiring diagram
1.
F11
Optional
•
Reg. 1 A (090, 120, 150).
5
1
1.7
Enthalpy sensors (Optional)
Wiring diagram
•
•
KM11
Reg. 1.4 A (180, 240, 300).
Reg. 1.4 A (180, 240, 300).
A1 to X2-7 (Cable 583)
A2 to X2-B
M11
Exhaust fan
X2-R
24 VAC Phase-R switching
X2-7
to A1 from KM11
2.
Accessories
3.
Accessories
Air quality sensor, optional, fitted on return (inside machine)
4.
L
Black
N
Blue
Y1
Brown
Air quality sensor, optional, fitted on ambient (machine exterior)
5.
L
Black
N
Blue
Y1
Brown
Yellow-Green
6.
Air quality board (green)
Enthalpy sensor C7400A return, optional
7.
+
Red
S
White
Enthalpy sensor C7400A outside, optional
8.
+
Red
S
White
B15
Return sensor (black)
B16
Discharge sensor, optional depending on model (yellow)
B17
Inside sensor (white)
Damper
M10
X1
0-10 V
Grey
C
Black
R
Red
Cables to be installed on site (not supplied)
Data and measurements subject to changes without prior notice.
6
Enthalpy sensors (Optional)
EC Declaration of Conformity
1
1.8
1.8 EC Declaration of Conformity
7
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