Manuals / Roberts Gorden / Household Appliance / Gas Heater

Roberts Gorden CTU 22 TO 115 service manual Ignition Module, CTUA Wiring Diagram Models

Models: CTU 22 TO 115

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COMBAT® CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL

10.3 CTUA Wiring Diagram (Models 22-60)

IGNITION MODULE

BLUE

BROWN

YELLOW BROWN WHITE

BLACK BROWN PINK PURPLE GREY

GAS VALVE

BLACK

PRESSURE SWITCH

LOCKOUT

GREEN/YELLOW

RESET

NO\P(3)

YELLOW

BLACK

C\P(1)

WHITE

NC\P(2)

Pressure Switch

WHITE YELLOW

Detail

RUN

LOCKOUT

IGNITION MODULE

Plug in Connection to Gas Valve

SENSE		BLACK
		BLACK
		Honeywell
	BLACK	S4565C 1017 Control
IGNITION	BLACK
IGNITION

Time Delay Relay

BLUE

BROWN

		Thermostat Limit
		Thermodisc N/C
BROWN
			BROWN
	E	FAN	RED RED
	N	AXIAL
GREEN/YELLOW BLUE	L
GREEN/YELLOW BLUE	BROWN	COMBUSTION FAN
	E
	N
	L

BLUE

BROWN

MAINS FILTER

SITE WIRING

N	L 1	2	3 7	8
GROUND NEUTRAL	LINE REMOTE FAN ON	THERMOSTAT	REMOTE LOCKOUT INDICATION	REMOTE LOCKOUT RESET

NOTE:

If any of the original wire supplied with the heater must be replaced, it must be replaced with wiring material having a temperature rating of at least 105° C and 600 volts.

230V 1 Ø

50 Hz

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Roberts Gorden CTU 22 TO 115 service manual Ignition Module, CTUA Wiring Diagram Models

Contents

If you smell gas CombatQuality in Any Language Page 2007 Roberts-Gordon,LLC Page TABLE OF FIGURES Page Product Approval 2.1 Clearances to Combustibles SECTION 1 HEATER SAFETYSECTION 2 INSTALLER RESPONSIBILITY 2.2 Corrosive Chemicals3.5 Ventilation 3.3 Minimum Required Installation Clearances3.4 Clearances to Combustibles 3.6 Gas SupplyInstallation Clearances Top View SECTION 4 SPECIFICATIONS 4.1 CTUADimension Data - CTUA All Models End ViewDimension Data - CTUB, CTUC and CTUD 4.2 CTUB, CTUC and CTUD4.3 General Technical Data Table 4.4Technical Data Table Appliance Category II 2H/L 3B/P Figure 2 Suspension Methods SECTION 5 HEATER INSTALLATION 5.1 General5.2 Handling 5.3 Shelf Mounting and SuspensionSee Page 10, Figure 3 through Page 11, Figure terminal. See Page 11, Figure6.3 Type B22 Appliance 6.3.1 Air Intake Terminal CoverRoof Terminal 7.2.1 Heaters Installed Within the Heated Space 7.1 Room Sealed Installation7.2 Open Flued Installation SECTION 7 AIR SUPPLY8.1.1 CTUD Heaters SECTION 8 OPTIONAL HEATER CONFIGURATIONSFigure 8 Ducting SECTION 9 GAS PIPING 9.1 Connections10.1 Electrical Supply SECTION 10 WIRING AND ELECTRICAL INFORMATION10.2 Remote Controls ModelsIGNITION MODULE 10.3 CTUA Wiring Diagram ModelsIGNITION MODULE 10.4 CTUA Wiring Diagram Models SITE WIRINGSECTION 10 WIRING AND ELECTRICAL INFORMATION IGNITION MODULE SITE WIRING10.5 CTUB/C Wiring Diagram Models IGNITION MODULESECTION 10 WIRING AND ELECTRICAL INFORMATION 10.6 CTUB/C Wiring Diagram ModelsSITE WIRING IGNITION MODULE10.7 CTUB/C Wiring Diagram Models SITE WIRINGSee Page 23, Section 10.8 CTUD Wiring Diagram ModelsFor external fan wiring SITE WIRINGSITE 10.9 CTUD Wiring Diagram ModelsSee Page 23, Section Single Phase Motor with Load over 7 Amps 11.1.1 Louvres SECTION 11 COMMISSIONING11.1 Pre-CommissionChecks 11.1.2 Electrical ChecksFigure 10 Automatic Burner Control Box Sequence Figure 11 Gas Valve for Heater ModelsCheck Gas Rate 11.5 Combustion TestingFigure 12 Gas Valve for Heater Models 11.6 Turning Off the Heater11.8 Complete the Commissioning 11.7 External Controls11.9 Instruction to the User 12.2 Heater Operation 12.3.2 Burner Lockout Reset ButtonSee Page 28, Section Figure 13 Heater Operating Sequence12.4.2 To Turn the Heater Off 12.5 Simple Fault Finding12.5.1 Simple Fault Finding Burner Faults See Page 5, Section13.4 Heat Exchanger Maintenance 13.2 Burner Maintenance13.3 Fan/Motor Assembly Maintenance 13.5 Gas Control Valve Maintenance14.2 Burner Conversion SECTION 14 CONVERSION BETWEEN GASES 14.1 General14.3 Gas Valves SECTION 15 TROUBLESHOOTING 15.1 General Conduct Commissioning procedure as shown For your safety and optimum heater performanceon Page 24, Section 15.3Troubleshooting for Flame Supervision System 15.4Troubleshooting for Solenoid Valves16.1 Gas Valve SECTION 16 REMOVAL AND REPLACEMENT PARTSBurner Components 16.1.1 ModelsEnsure gas tight fitting of injectors 16.2 Burner Compartment16.2.1 Burner Injectors Ensure correct alignment with burners16.3 Ignition Electrode and Flame Probe 16.4 Flue Fan 16.5 Pressure Switch 16.7.2 To Replace the Fan Assembly 16.7 CTUA Axial Fan/Guard/Motor Assembly16.7.1 Fan Removal and Replacement 16.8.1 Fan Removal and ReplacementFigure 14 Centrifugal Fan Orientation 16.9 Fan DataPage Page Page close to heater Fire Hazardinjury or property damage