Start-Up; Compressor Replacement - Carrier AQUASNAP 30RB series Installation, Operation And Maintenance Instructions

30RB/30RQ - 30RBY/30RQY
Start-up, compressor replacement

Start-up

Unit start-up is done by the electronic control described above, and
must always be carried out under the supervision of a qualified air
conditioning engineer.
This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or
instruction concerning the use of the appliance by a person responsible
for their safety.
Children should be supervised to ensure that they do not play with the
appliance.
Necessary checks/precautions before start-up
- Ensure that all electrical connections are properly tightened.
- Ensure that the unit is level and well-supported.
- Check that the hydraulic circuit has sufficient water flow and that the
pipe connections correspond to the installation diagram.
- Ensure that there are no water losses. Check the correct operation of
the valves installed.
- All panels should be fitted and firmly secured with the corresponding
screws.
- Make sure that there is sufficient space for servicing and maintenance
purposes.
- Ensure that there are no refrigerant leaks.
- Confirm that the electrical power source agrees with the unit
nameplate rating, wiring diagram and other documentation for the
unit.
- Ensure that the power supply corresponds to the applicable standards.
- Make sure that compressors float freely on the mounting springs.
Screws to be removed
GB - 18

Compressor replacement

As the compressors are hermetic, when an internal fault occurs, the
compressor must be replaced.
For sizes 26 to 40, access to the oil level gauge is possible by removing
the 6 screws of the electric box.
This must be done as detailed below:
- Disconnect the unit from the electrical supply.
- Remove the access panels.
- Remove the gas from the refrigerant circuit using recovery equipment
to avoid harming the atmosphere.
- Electrically disconnect the compressor.
- Unbraze or unscrew the suction and discharge lines, taking care not to
damage the rest of the components.
- Remove the compressor fastenings.
- Replace the compressor, ensuring that it contains sufficient oil.
- Braze or screw in the lines.
- Connect the compressor according to the wiring diagram.
- Evacuate the compressor.
- Introduce the quantity of refrigerant indicated on the nameplate
through the service couplings located on the high and low pressure
side.
NOTE:
This operation must be carried out by a qualified person.
Shift the electric box to allow access to the oil level gauge.