SECTION 3: I
NSTALLATION
21
3.10 Outdoor Sensor (P/N 10081500) Placement
The outdoor sensor measures air temperature out-
side the building. It is important that the sensor is
located on the outside of the building on the north
facing wall. Failure to mount the sensor on the north
facing wall will result in artificially high temperature
readings and failure to modulate as designed. If pos-
sible, locate the sensor high under an eve to prevent
incorrect readings from direct sunlight and damage
due to the elements.
FIGURE 12: Outdoor Sensor Placement
Mount the outside sensor with the sensor module
facing down to prevent accumulation of dirt or water.
3.11 Outside Air Supply (P/N 90707501K)
If an outside air (O.A.) blower is to be used, modifica-
tions to the outside air blower out-of-box wiring must
be made to properly time, and safety check the
blower with the main pump.
for external wiring details.
Remove the internal connection between the pres-
sure switch (P.S.) and the relay and wire the P.S. of
the O.A. Blower in series with that of the main pump.
Send 24V from Terminal Block 2 in the controller to
terminals T1 and T2 in the O.A. Blower. Power the
blower with its own 120V, 15A, 60Hz supply.
for
wiring.
North
Outside
Sensor
Sensor
Module
facing down
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 ...