T-CU19-JAN24-1
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BACnet and Modbus Protocol
No serial card is required if Modbus over RS485 serial port
(J11).
A Serial card is required to be plugged in the J13
connector if Bacnet over RS485 (MSTP) or IP.
Figure 19: Location of Serial Port on
Controller
Software Update
The pCO smart key can be used to load the program into
the controller. It is connected directly via the telephone
connector using the cable supplied, with the power supply
coming from the controller.
Figure 20: pCO Smart Key
Appendix
Table 20: Tightening Torque
Model
Tightening Torque (Nm)
Compressor
Mounting
Main Cap Service Valves
Main Cap Ball
Valve
Liquid Receiver
Schrader Valve;
Charging port
LRMIFS0300AXY1
M8
(13 Nm)
Suction: M22*1.0mm (30-35 Nm)
Liquid: M18*1.0mm (25-30 Nm)
M16*1.5mm
(10-15 Nm)
Brazed Connection
Plug 3/8"NPT
(18-22 Nm)
7/16" - 20UNF
(14-16 Nm)
LRMIFS0600AXY1
Suction: M25*1.0mm (42-47 Nm)
Liquid: M18*1.0mm (25-30 Nm)
LRMIFS0900AXY1
Suction: M33*1.5mm (42-47 Nm)
Liquid: M25*1.0mm (25-30 Nm)
Graphic
Presentation
N/A