Publicidad
Idiomas disponibles
Idiomas disponibles
Installation Dx-valve kit
By the refrigerant circuit diagram, braze the sensor holder of TC1, TC2, TCJ of the valve kit and the accessory. Refer to
the below table for the pipe diameter and the pipe length to use.
Main pipe equivalent length
Total piping length (real length)
Furthest equivalent pipe real length L
Furthest equivalent pipe length between outdoor unit
Outdoor unit - Indoor unit (Upper outdoor unit)
Max. Height
Difference
Outdoor unit - Indoor unit (Lower outdoor unit)
Dx-valve kit and connection of the pipe
• Be sure to cool the strainer and PMV valve body using a wet cloth so that the body temperature does not exceed 120°C
while brazing.
• For the connection pipe, it may vibrate during the defrosting operation. Carry out the installation work so that the
connection pipe does not break after a long-term use.
Sensor holders
• To ensure reliable operation, all Sensor holders must be fitted by brazing.
• Be careful of that the brazing material does not enter into the sensor holder when attaching the TC1, TC2 and TCJ
sensor holder.
TC1 sensor
• Install it in the collecting part of the gas header.
TC2 sensor
• Install it in the between the liquid pipe distributor and the PMV.
(TC2 sensor is attached to the refrigerant cycle of AHU.)
TCJ sensor
• Install it in the pass where the temperature of the capillary tube is the lowest.
TA sensor
• Install the TA sensor where the better of air flow.
• The TA sensor must be located in the Return Air position, prior to mixing with any fresh air.
If the TC1, TC2, or TCJ sensor are easy to be subjected to the surrounding thermal effect, cover them with the heat
insulator material, and fix them with the fixing band.
Gas pipe
45°
TC1 sensor holder
Braze the TC1 sensor on the location of the lower
side 45 °to detect the stable temperature.
Item
Sensor holder
– 10 –
Combined with SMMS-e, SMMS-7 and SMMS-u
Same as piping length restriction of SMMS-e,
SMMS-7 and SMMS-u
120 m (100 m)
Taping
Taping
Attachment figure
After brazing the pipe, wrap the attached heat insulator and fix
it with a tape.
DX valve kit
100 m
―
40 m
Valve kit
Heat insulator
EN
10-EN
Publicidad
