Carrier 50FC Installation, Operation And Maintenance Instructions page 40

12 - FACTORY OPTIONS AND ACCESSORIES
Connection of the burner condensate drain
These units are equipped with a junction for draining the burner
condensates drain pan. Threaded connector 1/2" M in PVC.
To facilitate drainage, the structure of the group of generator pipes
slopes slightly towards the discharge.
If the unit is going to be installed outdoors in a location where
there are never low temperatures, the drain junction does not
have to be connected to any pipe. It must simply be ensured that
the water does not stagnate.
If the condensates are going to be discharged into a pipe do not
seal it directly at the condensate outlet. If the water were to freeze
in the pipe this could block the discharge of condensates and
cause the water to accumulate inside the exchanger.
Condensate drain in PCH080
Condensate drain in PCH130, PCH160 and PCH210
Electrical connection of the burner
It is necessary to communicate the burner control with the electrical
cabinet of the 50FC unit. The costumer must connect the cables
coming from the burner to the connection box "BOX8-QUE" that
is located inside of the 50FC unit. This box is accessed via the
same panel that the supply fans.
Initial location of the cables for connection:
50FC
unit
2
BOX8
1
QUE
Connection to be made by the customer:
50FC
unit
2
BOX8
1
QUE
40
Roofcurb
with burner
W48-QUE
2
Burner
W49-QUE 1
control
Roofcurb
with burner
W48-QUE
2
Burner
W49-QUE 1
control
Note: see the wiring diagram included with the unit for a more
detailed information about the wiring.
The following image shows the location of the connection box
"BOX8-QUE".
BOX8-QUE
Connection of the outlet probe
The connection of the outlet temperature probes must be
performed on-site. This probe is supplied inside the electrical
cabinet of the 50FC unit.
Make the electrical connection of the probe
(S3) to the connection box "BOX8-QUE" that
is located inside of the 50FC unit, using 2 x
1mm section cable.
2
Note: this cable is not supplied with the probe.
Please refer to the wiring diagram and
the "50FC" electronic control brochure,
included with the unit.
For the electrical connections, remove the top cover of the sensor.
Remove the cover by rotating it anticlockwise.
In order to guarantee the correct measurement of the outlet
air temperature this probe will be positioned at 1.5 metres as
a minimum from the outlet mouth at the bottom of the duct and
as near to the middle as possible inside this duct. The probe is
connected to the air duct using the special fastening bracket.
● Fasten the bracket to the air duct;
● Insert the rod on the bracket to the required depth;
● Tighten the screw on the bracket to fasten.
Clamp for attaching to the duct
Rotate to close
Detail of clamp dimensions (mm)
Rotate to open
42
DPDT011000
40
GND
BOX8-QUE
Screw to fix the probe
position (PT3.5x12)
3 x M3x10 self-tapping male
No. 3 holes Ø 2.75
120°
120°
Ø 17
61
43,3
= =
S3
46
B3