ROBERTS GORDON
®
CORAYVAC
®
M
ODULATING
H
EATING
C
ONTROL
C
ONTROLLER
I
NSTALLATION
M
ANUAL
18
FIGURE 10: Hybrid Network Configuration
Recommended MS/TP cable specification
Description
Single twisted pair, low capacitance (12pF), CL2P, 22 AWG (7x30), TC foam FEP,
plenum rated cable
Conductor
22 AWG (7x30) stranded copper (tin plated) 0.030 in. (0.762 mm) O.D.
NOTE 24 AWG can be used for segments <200 ft. (60.7 m).
Insulation
Foamed FEP 0.015 in. (0.381 mm) wall 0.060 in. (1.524 mm) O.D.
Color Code
Black/White
Twist Lay
2 in. (50.8 mm) lay on pair 6 twists/foot (20 twists/meter) nominal
Shielding
Aluminum/Mylar shield with 24 AWG (7x32) TC drain wire
Jacket
SmokeGard (SmokeGard PVC) 0.021 in. (0.5334 mm) wall 0.175 in. (4.445 mm)
O.D.
Halar (E-CTFE) 0.010 in. (0.254 mm) wall 0.144 in. (3.6576 mm) O.D.
DC Resistance
15.2 Ohms/1000’ (50 Ohms/km) nominal
Capacitance
12.5 pF/ft (41 pF/meter) nominal conductor to conductor
Characteristic Impedance
100 Ohms nominal
Weight
12 lb./1000’ (17.9 kg/km)
UL Temperature Rating
SmokeGard 167°F (75°C)
Halar -40 to 302°F (-40 to 150°C)
Voltage
300 Vac, power limited
Listing
UL: NEC CL2P, or better
T
C
C
C
C
C
C
C
C
C
T
T
R
C
C
C
C
C
C
C
C
C
C
T
R
C
C
C
C
C
C
C
C
C
C
T
C
T
R
C
C
T
C
T
C
T
R
C
C
C
C
C
C
C
C
C
C
T
C
T
R
T
C
C
C
C
C
C
C
C
C
T
R
T
R
C
C
T
C
C
C
T
C
C
C
Segment
Segment
Segment
Segment
S
e
g
ment
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 ...