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Installing the controller
I/O
Type
Remote
BI
IN-6
Occupancy
Contact
Tower Fan
AO
AO-1
Speed
Alarm Lamp
BO
BO-1
Legend
AI
AO
- Analog Input
- Analog Output
BI
BO
- Binary Input
- Binary Output
*These channels are configurable.
Input wiring specifications
Input
0–5 Vdc
Thermistor
Dry contact
Pulse counter TLO
Equipment Touch
device
Inputs
The controller has 6 inputs that accept the following signal types.
These
inputs...
All
All
30MP Multi-chiller
Installation and Start-up Guide
I/O
Gnd
Point Name/
Terminal
Terminal
Function
1 - Gnd
Remote Occupancy Contact
2 - Gnd
Tower Fan Speed Output
1 - Pwr
Equipment Alarm Indicator Output
Maximum length
500 feet
(152 meters)
500 feet
(152 meters)
500 feet
(152 meters)
Support this signal
type...
Description
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
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.
Minimum gauge
22 AWG
22 AWG
22 AWG (7x0096) bare
copper
8
Hardware/
Jumper
Position of
Signal
Pins
Dry Contact
N/A
0-10 Vdc
N/A
Relay
N/A
Shielding
100 feet
(30.4 meters) unshielded
100 - 500 feet shielded
100 feet
(30.4 meters) unshielded
100 - 500 feet shielded
If shielded, Aluminum/Mylar shield
(100% coverage) with TC drain wire
CARRIER CORPORATION ©2018
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