Application Control - Bosch CLIMATE 5000 VRF RDCI Series Installation & User Manual

12 | APPLICATION CONTROL

7.5. Wiring requirements for signal wire
1. You must use shielded wire for communication signal cables.
2. All the shielding wires network should be interconnected, and finally
connected together to the metal plate grounding.
3. Ensure when installing power cables and communication wires there is a
distance of at least 300mm.
4. The control wire can not be a close loop.
5. The control wire has polarity, be careful during wiring.
6. All communication wires should be 0.75mm.
7.6. SBOX spot check function checks signal between indoor
unit and outdoor unit
Enter spot check:
1. Only power on the indoor units and the SBOX in the same system;
2. Long press the SBOX spot check key on the first SBOX. Then the other
SBOX's connected to the system will enter spot check mode (SBOX01,
SBOX02, SBOX04, SBOX06 separately has 1,2, 4, 6 spot check keys);
3. After enter spot check mode, the display panel will display "CH", when
No. of system of SBOX detects the indoor unit communication signal, the
No. of system will immediately operate the solenoid valve under this system
as the following sequence: "SV(n)" ON 10s → "SV(n)-B" ON 10s → repeat the
above steps for 3 times → "SV(n)" and "SV(n)-B" OFF;
4. If the valve didn't follow step 3 operation then means the No. of system
communication has error, please check the signal wire connection between
No. of system and indoor unit, and then repeat the step 1~3 to check the
No. of system; if the valve followed step 3 operation then means the No. of
system communication is normal, and then can repeat the step 1~3 to check
other systems;
Exit spot check:
1. No indoor unit signal is detected in 10 minutes;
2. SBOX power off;
3. Finish spot check operation.
6720862460 (16/04)
8. APPLICATION CONTROL
8.1. Spot check instruction of main control panel
SBOX Spot check keys SW1-SW6 are separately corresponded to No.1-6 system
Table: 8-1
No. Display
1 Connected indoor unit quantity under this SBOX
2 This SBOX operation mode
3 Subcooling inlet temp. T1C2
4 Subcooling outlet temp. T1C1
5 Total T2(B) average value back from outdoor unit
6 Indoor unit T2(B) value under this SBOX
7 Total ON status intdoor unit quantity
8 Outdoor unit operation mode
9 Subcooling PMV opening
10 ON status indoor unit quantity under this SBOX
11 Chip version number
12 — —
Operation mode:
0-Off
2-Cooling
3-Heating
4-Forceing cooling
5-Mixed cooling
6-Mixed Heating
8.2. LED indication lamp instruction
Table: 8-2
Normally ON
LED1 lamp Outdoor unit ON
Indoor unit ON
LED2 lamp
under this SBOX
Slow flash Flash
Outdoor unit Outdoor unit
standby communication error
Indoor unit OFF Indoor unit
under this SBOX communication error
CLIMATE 5000 VRF