Electrical Connection - Bosch Climate 5000 L Manual

Fig. 7
▶ Loosen the five fasten screws of the drain pump assembly.
▶ Remove the sponge ( Fig. 2 [1]) attached at the water drainage
outlet, then remove the clamp spring ( Fig. 2 [2]).
▶ Take out the drain pump assembly.
▶ Dismount the drain pump and connect the drain pipe directly to the
water tray.
▶ Short-circuit the drain pump terminal (marked as "water") with the
plug which is delivered with the unit.
▶ Install the connection pipe.
▶ Reinstall the drain pump assembly.
▶ Relocate the sponge and clamp spring.
▶ Fix the drain pump assembly with five screws.
3.5.3 Testing the condensate pipe
Testing the condensate pipe ensures that all connections are tight.
▶ Test the condensate pipe before closing the cover.
The drain pump can only be tested once the electrical connection has
been established.
▶ Fill the drain pan or water injection pipe with roughly 2 l of water.
▶ Switch on cooling mode. The drain pump can be heard.
▶ Make sure that the water drains away properly.
▶ Check tightness of all connections.
When the unit is turned off, if there is still water left in the machine, the
drain pump will keep on working for about 1 to 3 minutes to discharge
water. The sound generated by the pump motor is normal.
3.5.4 Checking tightness and filling the system
Carry out the tightness test and filling for every connected indoor unit
individually.
▶ Once the entire system has been filled, put the cover for the pipe
connections on the outdoor unit back on.
Checking tightness
Observe the national and local regulations when carrying out the
tightness test.
▶ Remove the caps of the valves of a connection pair
( Fig. 2 and 22, [1], [2] and [3]).
▶ Connect the Schrader opener [6] and pressure gauge [4] to the
Schrader valve [1].
▶ Screw in the Schrader opener and open the Schrader valve [1].
Climate 5000 L • Climate 5000iL – 6721841494 (2022/05)
▶ Leave valves [2] and [3] closed and fill the pipes with nitrogen until
the pressure is 10% above the maximum operating pressure
( Page 60).
▶ Check whether the pressure is still the same after 10 minutes.
▶ Discharge the nitrogen until the maximum operating pressure is
reached.
▶ Check whether the pressure is still the same after at least 1 hour.
▶ Discharge nitrogen.
Filling the system
NOTICE
Malfunction due to incorrect refrigerant
The outdoor unit is filled with refrigerant R32 at the factory.
▶ If refrigerant needs to be topped up, only use the same refrigerant.
Do not mix refrigerant types.
0010044405-001
▶ Evacuate and dry the pipes with a vacuum pump ( Fig. 21 and 22,
[5]) for at least 30 minutes at roughly −1 bar (approx. 500 microns).
▶ Open valve [3] on liquid side.
▶ Use a pressure gauge to [4] check whether the flow is unobstructed.
▶ Open valve [2] on gas side.
The refrigerant is distributed round the connected pipes.
▶ Afterwards, check the pressure ratios.
▶ Unscrew the Schrader opener [6] and close the Schrader valve [1].
▶ Remove the vacuum pump, pressure gauge and Schrader opener.
▶ Reattach the valve caps.
3.6

Electrical connection

3.6.1 General notes
WARNING
Risk to life from electric shock!
Touching live electrical parts can cause an electric shock.
▶ Before working on electrical parts, disconnect all phases of the
power supply (fuse/circuit breaker) and lock the isolator switch to
prevent unintentional reconnection.
▶ Work on the electrical system must only be carried out by an
authorised electrician.
▶ An authorised electrician must determine the correct conductor
cross-section and circuit breaker. The maximum current
consumption of the technical data ( see chapter 9, page 60) is
decisive for this purpose.
▶ Observe safety measures according to national and international
regulations.
▶ If you identify a safety risk in the mains voltage, or if a short circuit
occurs during installation, inform the operator in writing and do not
install the appliances, until the problem has been resolved.
▶ All electrical connections must be made in accordance with the
electrical connection diagram.
▶ Only use a special tool to cut cable insulation.
▶ Connect the cable to the existing mounting clips / cable glands using
suitable cable ties (scope of delivery).
▶ Do not connect any additional consumers to the mains power supply
of the device.
▶ Do not mix up live and PEN conductor. This can lead to malfunctions.
▶ If the mains power supply is fixed, install an overvoltage protector
and isolator which is designed for 1.5 times the maximum power
input of the appliance.
▶ For devices with a fixed mains power supply in which the leakage
current is potentially higher than 10 mA, we recommend installing a
residual current device (RCD) with a maximum rated residual
operating current of 30 mA.
Installation
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