SECTION 3: I
NSTALLATION
17
• Outdoor Sensor Cable
• Communications between Multiple Controllers
(MS/TP)
Maximum network length, 4000’ (1219 m) at 19.2K
baud rate, and 2000’ (609.5 m) at 76.8K baud rate.
Controllers should be communicating together in a
daisy-chain or hybrid configuration.
FIGURE 9: Daisy-Chain Network Configuration
Cable
Shielded cable, One twisted pair of 18
AWG minimum or equivalent Belden
#8451, #1503A; General Cable
#C2514.
Wire Material PVC insulated, parallel bonded (Type
2, 100-ohm platinum uses FT-4)
Operating
Temperature
Range
-40 to 105 °C (-40 to 221 °F)
T
C
C
C
C
C
C
C
C
C
C
T
T
R
C
C
C
C
C
C
C
C
C
C
C
T
T
R
C
C
C
C
C
C
C
C
C
C
C
C
T
C
Segment
Segment
Segment
C: Controller
R: Repeater
T: BT485 Terminating Resistor
Summary of Contents for CORAYVAC
Page 2: ......
Page 4: ......
Page 69: ...SECTION 8 PROGRAMMING AND TROUBLESHOOTING THE SYSTEM 65 THIS PAGE LEFT INTENTIONALLY BLANK ...
Page 71: ...SECTION 9 TROUBLESHOOTING 67 FIGURE 26 Vacuum pump does not turn on ...
Page 75: ...SECTION 9 TROUBLESHOOTING 71 FIGURE 31 Burner troubleshooting in manual mode ...
Page 77: ...SECTION 9 TROUBLESHOOTING 73 After 45 second prepurge burners do not light continued ...
Page 81: ...SECTION 9 TROUBLESHOOTING 77 FIGURE 36 Air Pressure Switch alarm ...
Page 83: ...SECTION 9 TROUBLESHOOTING 79 FIGURE 38 Repeater troubleshooting ...
Page 85: ...SECTION 9 TROUBLESHOOTING 81 BACnet MS TP troubleshooting continued ...
Page 109: ...SECTION 13 TOUCHSCREEN TREE 105 Touchscreen Tree Overview continued ...
Page 111: ...SECTION 13 TOUCHSCREEN TREE 107 FIGURE 47 Maintenance Unit FIGURE 48 Alarms ...
Page 113: ...SECTION 13 TOUCHSCREEN TREE 109 FIGURE 51 Configuration Zones FIGURE 52 Configuration Unit ...
Page 115: ...SECTION 13 TOUCHSCREEN TREE 111 FIGURE 55 Touchscreen System FIGURE 56 Touchscreen Setup ...
Page 118: ...ROBERTS GORDON CORAYVAC MODULATING HEATING CONTROL CONTROLLER INSTALLATION MANUAL 114 ...