Connecting Signal And Power Cables - Bosch Climate 5000 Series Installation Instructions Manual

9 Connecting Signal and Power Cables

The outside unit's terminal block is protected by an electrical wiring cover on the
side of the unit. A comprehensive wiring diagram is printed on the inside of the
wiring cover.
YELLOW OR BLACK
1
Y/G
TO INDOOR UNIT
Figure 39 Wiring Schematic Example (refer to unit for actual schematic)
WARNING: ELECTRICAL HAZARD
 Before performing electrical work, read these regulations:
1. All wiring must comply with local and national
electrical codes, and must be installed by a licensed
electrician.
2. All electrical connections must be made according
to the Electrical Connection Diagram located on the
panels of the indoor and outdoor units.
3. If there is a serious safety issue with the power supply,
stop work immediately. Explain your reasoning to the
client and refuse to install the unit until the safety
issue is properly resolved.
4. Power voltage should be within 90-110% of
rated voltage. Insuffi cient power supply can cause
malfunction, electrical shock, or fi re.
5. When connecting power to fi xed wiring, install a surge
protector and main power switch with a capacity of
1.5 times the maximum current of the unit.
6. When connecting power to fi xed wiring, a switch or
circuit breaker that disconnects all poles and has
a contact separation of at least 1/8in (3mm) must
be incorporated in the fi xed wiring. The licensed
electrician must use an approved/listed circuit
breaker.
7. Only connect the unit to an individual branch /
dedicated circuit. Do not connect another appliance
to that circuit.
8. Make sure to properly ground the outdoor unit.
9. Every wire must be fi rmly connected. Loose wiring can
cause the terminal to overheat, resulting in product
malfunction and possible fi re.
10. Do not let wires touch or rest against refrigerant
tubing, the compressor, or any moving parts within
the unit.
Bosch Climate 5000 Series Four Way Cassette Ductless Split Air Conditioner / Heat Pump (06.2022)
2
3 L
N
Y/G
115VAC
POWER S UPPLY
DANGER: ELECTRICAL HAZARD

Before performing an y electrical or wiring work, turn off the
main power to the system.
1. Prepare the cable for connection:
Cable Types
 Outdoor Power Cable: SOOW type
 Signal/Power Cable: SOOW type
Minimum Cross-Sectional Area of Power Cables
Appliance Amps (A)
10
13
18
25
30
Table 8
—
Using wire strippers, strip the rubber jacket from both ends of signal/
power cable to reveal about 40mm (1.57in) of the wires inside.
—
Strip the insulation from the ends of the wires.
—
Using wire crimper, crimp u-type lugs on the ends of the wires.
WARNING: ELECTRICAL HAZARD

While crimping wires, make sure you clearly distinguish the
Live ("L") Wire from other wires.
WARNING: ELECTRICAL HAZARD

All wiring must be performed strictly in accordance with the
wiring diagram located on the inside of the indoor unit's wire
cover.
2. Unscrew the electrical wiring cover and remove it.
3. Unscrew the cable clamp below the terminal block and place it to the side.
4. Match the wire colors/labels with the labels on the terminal block, and
fi rmly screw the u-lug of each wire to its corresponding terminal.
5. After checking to make sure every connection is secure, loop the wires
around to prevent rain water from fl owing into the terminal.
6. Using the cable clamp, fasten the cable to the unit. Screw the cable clamp
down tightly.
7. Insulate unused wires with PVC electrical tape. Arrange them so that they
do not touch any electrical or metal parts.
8. Replace the wire cover on the side of the unit, and screw it in place.
Installation Instructions
AWG
18
16
14
12
10
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