Publicidad
Idiomas disponibles
Idiomas disponibles
Unit installation
7.3 MOUNTING METHOD
1
1
3
3
N O T E
•
Special nuts used for control box cover lock (step 3 in Control box mounting method) are supplied with the Dx-Interface.
•
In case of installation positions "c" and "d"(for Expansion valve box mounting method), make sure to insulate the copper pipes inlet
on the expansion valve box cover to avoid any liquid filtration and accumulation.
7.4 THERMISTOR INSTALLATION
Liquid and gas pipes thermistors
Two type thermistors are supplied inside the control box. The pur-
pose and identification of each one is as follow:
PCB socket /
Item
Thermistor
connector color
Liquid pipe thermistor
Gas pipe thermistor
C A U T I O N
In case that the thermistors supplied with the Dx-Interface are
not long enough, please make sure that the length extension is
properly done avoiding the sensing distortion and that the joint is
properly insulated to avoid any electrical failure.
N O T E
When fitting the thermistors, remember that they must be secured
correctly by the special clamp, ensuring the perfect contact bet-
ween the pipe and thermistor. Cover it completely with insulation,
like cork tape or pipe insulation, depending on the location. Re-
place them if damaged during maintenance work.
8
DX-Interface EXV-(2.0-10.0)E1
Control box
2
2
4
4
PCB
Thermistor
socket
length (mm)
number
Black
THM 3
Yellow
THM 5
PMML0243A rev.3 - 12/2014
ü
a
Thermistor installation example
Liquid / gas pipe thermistor (factory
1
supplied)
2
Thermistor holder (field supplied)
3
Thermistor lead wire (field supplied)
4
Insulation (field supplied)
650
600
C A U T I O N
The thermistor must be installed properly in order to avoid water
onto the thermistor.
Typical installation location
Liquid pipe
A
thermistor
Gas pipe
B
thermistor
Expansion valve box
û
ü
b
c
Must be installed in the
coldest liquid line point in
the heat exchanger
(prior the distributor).
Must be installed as close
as possible to the heat ex-
changer refrigerant outlet.
ü
d
1
2
3
4
A
B
Publicidad
