Carrier 50NC Series Installation, Operation And Maintenance Instructions page 39

Vertical autonomous heat pumps
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15 - MAINTENANCE
Plug-fans
Access to the fans of the outdoor module can be eff ected by
removing the side panels (Allen M6 screws).
In the case of the outdoor module with lateral supply of the Split
version, the motor terminal block can be accessed through a
panel located on the cover (Allen M4 screws).
Access to the fans in the interior module can be eff ected by
removing the cover (self-drilling screws).
Mixing box (optional)
In units with a mixing box (CS assembly), it is advisable to check
the conservation status of the servo motor.
Servomotor
Condensate drainage pan
● Both the outdoor and indoor modules include a pan that
Access panel
Access panel
● Check that the condensate pan is suffi ciently clean.
● Check that the drain is not clogged.
● Cleaning of the pan can be done with water and non-abrasive
Outdoor module
Electrical heaters (optional)
● To remove the electrical heaters, follow these steps: fi rst,
Access by the cover
Indoor module
● Each frame incorporates two safety thermistors to protect the
collects condensate.
- Outdoor module: 3/4" M junction threaded, in bronze.
- Indoor module: 1/2" M junction threaded, in plastic.
Indoor module
pan drainage
Outdoor module
pan drain drainage
detergent.
unscrew the side panel of the frame (self-drilling screws).
Then, disconnect the wires from the electrical cabinet and
remove the hose. Finally, unscrew the fi xing screws of the
heaters located on both the lower and upper rails (self-drilling
screws).
Caution: It is important to wait for electrical heaters to
cool down before attempting to handle them.
Rail fi xing
screws
unit from excessive temperature.
One of them has an automatic
reset (AR) and tare value at 65ºC,
the other one has a manual reset
(MR) and tare value at 120ºC.
Side
panel
39

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