Carrier 30MP - Input Wiring Details; Input Wiring Specifications

Installing the controller
30MP Multi-chiller CARRIER CORPORATION ©2018
Installation and Start-up Guide All rights reserved
8
I/O
Type
I/O
Terminal
Gnd
Terminal
Point Name/
Function
Hardware/
Signal
Jumper
Position of
Pins
Remote
Occupancy
Contact
BI
IN-6
1 - Gnd
Remote Occupancy Contact
Dry Contact
N/A
Tower Fan
Speed
AO
AO-1
2 - Gnd
Tower Fan Speed Output
0-10 Vdc
N/A
Alarm Lamp
BO
BO-1
1 - Pwr
Equipment Alarm Indicator Output
Relay
N/A
Legend
AI
- Analog Input
AO
- Analog Output
BI
- Binary Input
BO
- Binary Output
*These channels are configurable.
Input wiring specifications
Input
Maximum length
Minimum gauge
Shielding
0–5 Vdc 500 feet
(152 meters)
22 AWG 100 feet
(30.4 meters) unshielded
100 - 500 feet shielded
Thermistor
Dry contact
Pulse counter TLO
500 feet
(152 meters)
22 AWG 100 feet
(30.4 meters) unshielded
100 - 500 feet shielded
Equipment Touch
device
500 feet
(152 meters)
22 AWG (7x0096) bare
copper
If shielded, Aluminum/Mylar shield
(100% coverage) with TC drain wire
Inputs
The controller has 6 inputs that accept the following signal types.
These
inputs...
Support this signal
type...
Description
All Thermistor Precon type 2 (10k Ohm at 77°F/25°C) for IN-3 (Outdoor Air Temp) and
5k Ohm at 77°F (25°C) for IN-4 (Leaving Chilled Water Header Temp)
Input voltage for all other inputs: 0.33 to 2.52 Vdc
All Dry contact A 3.3 Vdc wetting voltage detects contact position, resulting in a 0.3 mA
maximum sense current when the contacts are closed.