Bosch Climate 7000i Notice D'installation page 66

Installation
▶ If there is a change in system pressure, refer to Chapter 4.1.3 "Gas
leak check" for information on how to check for leaks.
-or-
▶ If there is no change in system pressure, unscrew the cap from the
packed valve (high pressure valve).
▶ Insert the hexagonal wrench into the packed valve (high pressure
valve) and open the valve by turning the wrench in a 1/4 counter-
clockwise turn. Close the valve after 5 seconds.
▶ Check the pressure gauge for one minute to make sure that there is
no change in pressure.
The pressure gauge should read slightly higher than atmospheric
pressure.
▶ Remove the charge hose from the service port.
▶ Using the hexagonal wrench, fully open both the high pressure and
low pressure valves.
▶ Tighten valve caps on all three valves (service port, high pressure,
low pressure) by hand. If needed, use a torque wrench to tighten it
further.
When opening valve stems, turn the hexagonal wrench until it hits
against the stopper. Do not try to force the valve to open further.
Adding refrigerant
Some systems require additional charging depending on pipe lengths.
The standard pipe length varies according to local regulations.
NOTICE
Malfunction due to incorrect refrigerant
The outdoor unit is filled with R32 refrigerant at the factory.
▶ If refrigerant needs to be topped up, only use the same refrigerant.
Do not mix refrigerant types.
▶ Calculate the additional refrigerant to be charged according to Table
Connective pipe Air purging method
length (m)
≤ Standard pipe
Vacuum pump
length
> Standard pipe Vacuum pump
length
Table 10
3.5.5 Checking tightness and filling the system
Checking tightness
Observe the national and local regulations when carrying out the
tightness test.
▶ Remove the caps on the three valves ( Fig. 20, [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].
▶ Leave valves [2] and [3] closed and fill the system with nitrogen until
the pressure is 10 % above the maximum operating pressure (
page 71).
▶ Check whether the pressure is still the same after 10 minutes.
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▶ Discharge the nitrogen until the maximum operating pressure is
▶ Check whether the pressure is still the same after at least 1 hour.
▶ Discharge nitrogen.
Filling the system
Malfunction due to incorrect refrigerant
The outdoor unit is filled with R32 refrigerant at the factory.
▶ If refrigerant needs to be topped up, only use the same refrigerant.
▶ Evacuate and dry system with a vacuum pump ( Fig. 20, [5]) until
▶ Open the valve at the top [3] (liquid side).
▶ Use a pressure gauge [4] to check whether the flow is unobstructed.
▶ Open valve at bottom [2] (gas side).
▶ 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.
▶ Reattach the cover for pipe connections to the outdoor unit.
3.6
3.6.1
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
▶ Work on the electrical system must only be carried out by an
Additional
refrigerant
▶ An authorised electrician must determine the correct conductor
N/A
Liquid Side: Ø 6.35 (ø
0.25")
▶ Observe safety measures according to national and international
R32:
▶ If you identify a safety risk in the mains voltage, or if a short circuit
(Pipe length –
standard length) x
12g/m
▶ All electrical connections must be made in accordance with the
(Pipe length –
standard length) x
▶ Only use a special tool to cut cable insulation.
0.13oZ/ft
▶ Connect the cable to the existing mounting clips / cable glands using
▶ Do not connect any additional consumers to the mains power supply
▶ Do not mix up live and PEN conductor. This can lead to malfunctions.
▶ If the mains power supply is fixed, install an overvoltage protector
3.6.2
The indoor unit is connected to the outdoor unit using a 5-core
communication cable of the type H07RN-F or H05RN-F. The conductor
cross-section of the communication cable should be at least 1.5 mm
reached.
NOTICE
Do not mix refrigerant types.
the pressure is approx. −1 bar (or approx. 500 microns).
The refrigerant is distributed round the system.
Electrical connection
General notes
WARNING
power supply (fuse/circuit breaker) and lock the isolator switch to
prevent unintentional reconnection.
authorised electrician.
cross-section and circuit breaker. The maximum current
consumption of the technical data ( see chapter 8, page 71) is
decisive for this purpose.
regulations.
occurs during installation, inform the operator in writing and do not
install the appliances , until the problem has been resolved.
electrical connection diagram.
suitable cable ties (scope of delivery).
of the device.
and isolator which is designed for 1.5 times the maximum power
input of the appliance.
Connecting the indoor unit
Climate 7000i – 6721873506 (2024/04)
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