Installation Manual
Bosch Climate 5000 AA Series Split Type Ductless Air Conditioner / Heat Pump
| 21
Bosch Thermotechnology Corp.
|
01.2017
Data subject to change
Step 4: Connect 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.
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Figure 25 Wiring schematic example (refer to unit for actual wiring schematic)
WARNING:
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 +/-10% of nominal
or 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 or service
disconnect [non-fused].
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.
WARNING:
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)
AWG
10
18
13
16
18
14
25
12
30
10
Table 4
—
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:
While crimping wires, make sure you clearly distinguish the
Live (“L”) Wire from other wires.
WARNING:
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.
