Carrier 30WI Manual page 126

Chiller - heat pump control
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30 - COMMUNICATION PROTOCOL
Hexadecimal
Bit No.
bit No.
decimal
0x200
512
0x201
513
0x202
514
0x203
515
0x204
516
0x205
517
0x206
518
0x220
544
0x221
545
0x222
546
0x223
547
0x224
548
0x225
549
0x226
550
0x227
551
126
Description
Read (Functions 1 or 2) and write (Functions 5 or 15) bit
On/Off
Control set to setpoint 1 or 2
Heating or cooling operation
Load shedding via Modbus, stage 1, circuit 1 (different from 0 x
Load shedding via Modbus, stage 2, circuit 1
Load shedding via Modbus, stage 1, circuit 2
Load shedding via Modbus, stage 2, circuit 2
Read bit (Functions 1 or 2) → Available with versions 09.00 and higher
On/Off summary (1 = keypad on/off = 1 and all automaic operation
controls closed and no oil warm-up time and no faults)
1 = Cooling possible
1 = Heating possible
1 = 1 stage on
1 = Maximum available power reached
1 = A major fault preventing output has occurred
1 = A reset fault has occurred but output is possible
1 = A fault requiring servicing has occurred
140)
Type
Read/Write
1 = On
1 = Control set to setpoint
Read/Write
2
Read/Write
1 = Heating
Read/Write
1 = Off
Read/Write
1 = Off
Read/Write
1 = Off
Read/Write
1 = Off
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only

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