Manuals / Roberts Gorden / Household Appliance / Gas Heater

Roberts Gorden NEMA 4 installation manual Repeater Wiring

Models: NEMA 4

1 48

Download 48 pages 39.44 Kb

Page 32

5.5.1 Repeater

ROBERTS GORDON® ULTRAVAC™ CONTROLLER INSTALLATION MANUAL

5.5.1 Repeater

If the RS-485 communications wire length is above 4000', a repeater must be used to extend the signal. The repeater can also be used to create parallel branches of ROBERTS GORDON® ULTRAVAC™ controller communications bus wiring. Each repeater is sold in a 12" x 12" NEMA 1 enclosure with a 120/24 Vac transformer.

There is no limit on the quantities of repeaters used in a system.

FIGURE 19: Repeater Wiring

		120 Vac
			24Vac
Black	Black Red	Red	Red Black
-	+ -	+	1/4A
-	+ -	+	- + - +
RS485 OUT RS485 OUT			RS485 OUT RS485 OUT
			1/4A

RUN	PROGRAM	RS485	RS232
REF	+	RS485 OUT
-	+	-	+
			1/4A	1/4A

Red

Black

Drain

120Vac

24Vac

Black	Red	Black	Red			Black	Red
-	+	-	+	1/4A	+	-	+
				-
RS485 OUT		RS485 OUT		RS485 OUT		RS485 OUT
				1/4A

RUN	PROGRAM	RS485	RS232
REF	+	RS485 OUT
-	+	-	+
			1/4A	1/4A

Red

Black

Drain

Central ULTRAVAC™

Controller

120 Vac

		120 Vac
			24Vac
Black	Black Red	Red	Red Black
-	+ -	+	1/4A
-	+ -	+	- + - +
RS485 OUT RS485 OUT			RS485 OUT RS485 OUT
			1/4A

RUN	PROGRAM	RS485	RS232
REF	+	RS485 OUT
-	+	-	+
			1/4A	1/4A

Red

Black

Drain

Satellite 1				Satellite 3				Satellite 5
			2
Satellite				Satellite 4				Satellite 6

Description	Part Number
Repeater	10080445

26

Image 32

Roberts Gorden NEMA 4 installation manual Repeater Wiring

Contents

Installation Manual UltraVacCORAYVAC ROBERTS GORDONPage TABLE OF CONTENTS 2008 Roberts-GordonLLCPage TABLE OF FIGURES Page 1.1 What is ROBERTS GORDON ULTRAVAC? 1.4.2 Control Wiring1.4.3 Control Board and Sensor Power SECTION 1 INTRODUCTION1.5 Carton Contents URVSC ULTRAVAC Satellite ControllerURVCCM ULTRAVAC Central Controller with Modem Inside View 1.7 Example Site Layout 1.6 Safety1.6.1 Manpower Requirements FIGURE 1 Example Site Layout SECTION 2 SPECIFICATIONS Standard EnclosureNEMA 4 Enclosure P/N 2.1.2 Electrical - Control BoardTo ensure robust control signaling Relay BoardControl Controller Enclosure2.3 Variable Frequency Drive VFD 2.3.1 Enclosure Standard ModelsNEMA 4 Models 2.3.2 ElectricalDisconnect Frequency Drive1 Ø input model shown 1 2 5 6 11 13A 13B 13ESECTION 3 INSTALLATION Severe Injury Hazard3.1 Preparation 3.2Positioning the ROBERTS GORDON3.3Cable Requirements 3.3.1 Line Power Supply 3.3.2 Control Wiring3.3.5RS-485Communication Wire Between Controllers 3.3.3 Indoor Sensor Cable3.4Electrical Installation Requirements DANGERElectrical Shock Hazard Disconnect electrical before servicing3.7 Indoor Sensor Placement Figure 12 for wiring details3.8 Outdoor Sensor Placement FIGURE 9 Outdoor Sensor PlacementSECTION 4 TYPICAL EXTERNAL DIAGRAMS Pressure Switch Pump Pressure Switch BMS Enable optionalElectrical wiring connections indicated by a dot To Satellite Controller RS-485 see NOTEOutside Air 120 1 Ø Zone BurnersFIGURE 13 Modem Location SECTION 5 COMMUNICATIONSTCP/IP communication module FIGURE 14 RS-485PC Connection 5.2 RS-485Converter for Central Controller5.3 TCP/IP Communication Module FIGURE 15 TCP/IP Communication Module MountingFIGURE 16 TCP/IP Communication Module Wiring 5.4 Direct Connect FIGURE 17 9 Pin Adapter for PCIf 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 Repeater6.1VFD Parameter Settings For Use With SECTION 6 VARIABLE FREQUENCY DRIVE PROGRAMMINGROBERTS GORDON ULTRAVAC Enclosure contains live electrical componentsDefault 6.2 Altering VFD ParametersParameter Factory7.1 Setting The CORAYVAC End Burner Vacuum 2.5 wc - 3.0 wc VFD Frequency SettingRecord Frequency Setting Here SECTION 7 COMMISSIONING THE CORAYVAC SYSTEMFIGURE 20 End Vent Vacuum FIGURE 21 Possible Damper Couplings’ Locations 1.0 w.c. - 1.2 wc VFD Frequency Setting Record Frequency Setting HereSECTION 8 REPLACEMENT PARTS 8.2 Variable Frequency Drive Replacement Parts Power Input Rotary Dissconnect Base Blockfuse holder and VFD power input Variable Frequency Drive 1 Ø input model shown8.3Replacement Parts Instructions 8.3.2 Control Board Power LED8.3.4 24V Power 1 A Fuse 8.3.1 Plug-InRelay8.3.6 Variable Frequency Drive 25 A or 10 A Fuse SECTION ChartTROUBLESHOOTING Flow Chart continued TroubleshootingTroubleshooting Flow Chart continued Ignition Module Diagnostic CodesProblem SolutionTROUBLESHOOT ENDS Troubleshooting Flow Chartcontinued WARRANTY IS VOID IF ROBERTS-GORDONWILL PAY FORROBERTS-GORDONWILL NOT PAY FOR LIMITATIONS ON AUTHORITY OF REPRESENTATIVES