Relay And 3 Pin Connector Kit: Psc-5Ra - Johnson Controls VRF System Engineering Manual

3.9 Relay and 3 Pin Connector Kit: PSC-5RA

This relay kit provides for basic input/output integration functionality (indoor unit ON/OFF, operating mode,
alarm status) to third party controllers and Building Management Systems (BMS).
5/16
(7.5)
1-1/4 (31.5)
Third Party
Controller
or BMS
Connection Cable
Max. 229.7ft (70m)
*: Refer to Service Manual for connector numbers.
Item
Third Party
Controller
or BMS
Third Party
Controller
or BMS
Refer to the Indoor Unit Manual for Input/Output mode setting by the wired controller.
TC-16002-rev.1
Max. 4-1/2 (115)
4 (101)
3-3/8 (86)
1-1/2 (38)
Fixing Hole:
Connecting Cable
1/4 (6)
for Indoor Unit
Opening for
Controller or BMS (3rd Party) Cable
TB1
Adapter
(PSC-5RA)
TB2
(6 conductors)
(field-supplied)
Signal
Input 1
Input level signal or pulse signal for voltage
from the third party controller or BMS
Input 2
Output 1
Output signal from the wired controller
Output 2
Unit: inch (mm)
5/16
(7.5)
PCB
Name
Model
PCB
CN3*
CN7
0.3mm (AWG22)
2
- 6 conductors
6.6ft (2m)
(Accessory)
Description
OPTIONAL PARTS
Relay and 3 Pin Connector Kit
PSC-5RA
Indoor
Unit
Wired
Controller
Specifications
Voltage: 12VDC, 10mA
Voltage: 24VDC, 10mA
Pulse Range: 500ms or more
24VDC
From 10mA to 1A
3-17