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Roberts Gorden
NEMA 4 installation manual
Models:
NEMA 4
1
2
48
48
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48 pages
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Troubleshooting
Specifications
Install
Typical External Diagrams
Indoor Sensor Placement
Warranty
Control Wiring
Problem
Default
To ensure robust control signaling
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Contents
CORAYVAC
Installation Manual
UltraVac
ROBERTS GORDON
Page
TABLE OF CONTENTS
2008 Roberts-GordonLLC
Page
TABLE OF FIGURES
Page
1.4.3 Control Board and Sensor Power
1.1 What is ROBERTS GORDON ULTRAVAC?
1.4.2 Control Wiring
SECTION 1 INTRODUCTION
1.5 Carton Contents
URVSC ULTRAVAC Satellite Controller
URVCCM ULTRAVAC Central Controller with Modem
Inside View
1.7 Example Site Layout
1.6 Safety
1.6.1 Manpower Requirements
FIGURE 1 Example Site Layout
Standard Enclosure
SECTION 2 SPECIFICATIONS
2.2Temperature Sensors Indoor Sensor
NEMA 4 Enclosure P/N
Control
To ensure robust control signaling
Relay Board
Controller Enclosure
NEMA 4 Models
2.3 Variable Frequency Drive VFD 2.3.1 Enclosure
Standard Models
2.3.2 Electrical
1 Ø input model shown
Disconnect
Frequency Drive
1 2 5 6 11 13A 13B 13E
3.1 Preparation
SECTION 3 INSTALLATION
Severe Injury Hazard
3.2Positioning the ROBERTS GORDON
3.3.5RS-485Communication Wire Between Controllers
3.3Cable Requirements 3.3.1 Line Power Supply
3.3.2 Control Wiring
3.3.3 Indoor Sensor Cable
Electrical Shock Hazard
3.4Electrical Installation Requirements
DANGER
Disconnect electrical before servicing
3.8 Outdoor Sensor Placement
3.7 Indoor Sensor Placement
Figure 12 for wiring details
FIGURE 9 Outdoor Sensor Placement
SECTION 4 TYPICAL EXTERNAL DIAGRAMS
Electrical wiring connections indicated by a dot
Pressure Switch Pump Pressure Switch
BMS Enable optional
To Satellite Controller RS-485 see NOTE
Outside Air
120 1 Ø
Zone
Burners
FIGURE 13 Modem Location
SECTION 5 COMMUNICATIONS
TCP/IP communication module
FIGURE 14 RS-485PC Connection
5.2 RS-485Converter for Central Controller
5.3 TCP/IP Communication Module
FIGURE 15 TCP/IP Communication Module Mounting
FIGURE 16 TCP/IP Communication Module Wiring
5.4 Direct Connect
FIGURE 17 9 Pin Adapter for PC
If more than one ROBERTS GORDON ULTRA- VAC Controller is installed in a building, the controllers’ RS-485communications must be wired in series. See Page 25, Figure 18. Connect the RS-485terminal on controller #1 to the RS-485terminal on controller #2 and so on in a daisy chain fashion. For communication cable requirements, See Page 12, Section
FIGURE 19 Repeater Wiring
5.5.1 Repeater
ROBERTS GORDON ULTRAVAC
6.1VFD Parameter Settings For Use With
SECTION 6 VARIABLE FREQUENCY DRIVE PROGRAMMING
Enclosure contains live electrical components
Parameter
Default
6.2 Altering VFD Parameters
Factory
Record Frequency Setting Here
7.1 Setting The CORAYVAC End Burner Vacuum
2.5 wc - 3.0 wc VFD Frequency Setting
SECTION 7 COMMISSIONING THE CORAYVAC SYSTEM
FIGURE 20 End Vent Vacuum
FIGURE 21 Possible Damper Couplings’ Locations
1.0 w.c. - 1.2 wc VFD Frequency Setting
Record Frequency Setting Here
SECTION 8 REPLACEMENT PARTS
fuse holder and VFD power input
8.2 Variable Frequency Drive Replacement Parts
Power Input Rotary Dissconnect Base Block
Variable Frequency Drive 1 Ø input model shown
8.3.4 24V Power 1 A Fuse
8.3Replacement Parts Instructions
8.3.2 Control Board Power LED
8.3.1 Plug-InRelay
8.3.6 Variable Frequency Drive 25 A or 10 A Fuse
SECTION
Chart
TROUBLESHOOTING
Flow Chart continued
Troubleshooting
Problem
Troubleshooting Flow Chart continued
Ignition Module Diagnostic Codes
Solution
TROUBLESHOOT ENDS
Troubleshooting Flow Chart
continued
ROBERTS-GORDONWILL NOT PAY FOR
WARRANTY IS VOID IF
ROBERTS-GORDONWILL PAY FOR
LIMITATIONS ON AUTHORITY OF REPRESENTATIVES
