Johnson Controls YORK YMC2 Operation And Maintenance Manual

Control center setup
Chiller ID
Access level required: operator
Using the COMMS Screen, assign an identification number to the chiller. This number will appear
atthe top of each report.
Printer setup
Access level required: operator
Using the COMMS Screen, the Control Center must be configured to transmit data in the same
format as the printer is configured to receive the data. The following values must be entered.
• Baud Rate - Set to 9600 for Brecknell 19200 for OKIPOS
• Data Bits - 8
• Parity - None
• Stop Bits - 1
Printer type
Access level required: operator
Using the PRINTER Screen, set the printer type to Weigh-Tronix.
Automatic data logging
Access level required: operator
If automatic data logging is desired, a status report can be automatically printed at a specified
interval beginning at a specified time, using the PRINTER Screen. The interval is programmable
over the range of 1 minute to 1440 minutes in 1 minute increments. The first print will occur at
the programmed START time and occur at the programmed Output Interval thereafter. The time
remaining until the next print is displayed on the PRINTER Screen.
• Automatic Printer Logging - Enables and disables automatic data logging.
• Log Start Time - Enter the time the first print is desired.
• Output Interval - Enter the desired interval between prints.
Downloading system reports to a laptop
You can download the system histories to a computer file to capture system operating conditions.
The following instructions are used to establish communication between the OptiView
™
Control
Panel and a laptop computer.
1. Connect the laptop computer to the control panel as follows:
Table 108: Laptop connections
Laptop (RS-232 serial port) OptiView (Com 1)
PIN Description Connector Terminal
2 RX to J2 4 (TXD1)
4 DTR to J2 2 (DSR1)
5 GND to J2 9 GND
2. On the OptiView
™
Printer screen, press the PC button. This allows faster data download
than the printer selections.
3. Navigate to the Setpoints > Setup > Comms screen and check that the printer settings match
the port settings listed in Table 109.
165
YMC
2
Mod B with OptiView Control Center

Johnson Controls YORK YMC2 Specifications

General

Brand	Johnson Controls
Model	YORK YMC2
Category	Chiller
Language	English