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Roberts Gorden CTU 22 TO 115 Site Wiring, CTUB/C Wiring Diagram Models, Ignition Module

Models: CTU 22 TO 115

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10.5 CTUB/C Wiring Diagram (Models 22-40)

COMBAT® CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL

10.5 CTUB/C Wiring Diagram (Models 22-40)

IGNITION MODULE

12

11

10

9

8

7

6

5

4

3

2

1

BLUE

BROWN

YELLOW BROWN WHITE

BLACK BROWN PINK PURPLE GREY

BLUE

BROWN

BROWN

GAS VALVE

GREEN/YELLOW

WHITE N

HIGH BLACK

BLACK

GREEN/YELLOW

WHITE YELLOW

SWITCHPRESSURE

LOCKOUT

MEDIUM BLUE

LOW RED

RESET

NO\P(3)

YELLOW

BLACK

C\P(1)

WHITE

NC\P(2)

Pressure Switch

Detail

RUN

LOCKOUT

Time Delay Relay

Thermostat Limit

Thermodisc N/C

BROWN

CENTRIFUGAL FAN

RED RED

E

COMBUSTION FAN

N

L

BLUE

BLUE

BROWN

MAINS FILTER

IGNITION MODULE

Plug in Connection to Gas Valve

SENSE		BLACK
		BLACK
		Honeywell
	BLACK	S4565C 1017 Control
IGNITION	BLACK
IGNITION

SITE WIRING

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

	230 V
NOTE:	1 Ø
NOTE:	50 Hz

Unused speed setting wires for the centrifugal fan must be isolated and insulated. 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.

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Roberts Gorden CTU 22 TO 115 service manual Site Wiring, CTUB/C Wiring Diagram Models, Ignition Module

Contents

Combat If you smell gasQuality in Any Language Page 2007 Roberts-Gordon,LLC Page TABLE OF FIGURES Page Product Approval SECTION 1 HEATER SAFETY SECTION 2 INSTALLER RESPONSIBILITY2.1 Clearances to Combustibles 2.2 Corrosive Chemicals3.3 Minimum Required Installation Clearances 3.4 Clearances to Combustibles3.5 Ventilation 3.6 Gas SupplyInstallation Clearances SECTION 4 SPECIFICATIONS 4.1 CTUA Dimension Data - CTUA All ModelsTop View 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 SECTION 5 HEATER INSTALLATION 5.1 General 5.2 HandlingFigure 2 Suspension Methods 5.3 Shelf Mounting and Suspensionterminal. See Page 11, Figure 6.3 Type B22 ApplianceSee Page 10, Figure 3 through Page 11, Figure 6.3.1 Air Intake Terminal CoverRoof Terminal 7.1 Room Sealed Installation 7.2 Open Flued Installation7.2.1 Heaters Installed Within the Heated Space SECTION 7 AIR SUPPLYSECTION 8 OPTIONAL HEATER CONFIGURATIONS 8.1.1 CTUD HeatersFigure 8 Ducting SECTION 9 GAS PIPING 9.1 ConnectionsSECTION 10 WIRING AND ELECTRICAL INFORMATION 10.2 Remote Controls10.1 Electrical Supply Models10.3 CTUA Wiring Diagram Models IGNITION MODULEIGNITION MODULE SITE WIRING 10.4 CTUA Wiring Diagram ModelsSECTION 10 WIRING AND ELECTRICAL INFORMATION SITE WIRING 10.5 CTUB/C Wiring Diagram ModelsIGNITION MODULE IGNITION MODULE10.6 CTUB/C Wiring Diagram Models SITE WIRINGSECTION 10 WIRING AND ELECTRICAL INFORMATION IGNITION MODULE10.7 CTUB/C Wiring Diagram Models SITE WIRING10.8 CTUD Wiring Diagram Models For external fan wiringSee Page 23, Section SITE WIRING10.9 CTUD Wiring Diagram Models SITESee Page 23, Section Single Phase Motor with Load over 7 Amps SECTION 11 COMMISSIONING 11.1 Pre-CommissionChecks11.1.1 Louvres 11.1.2 Electrical ChecksFigure 10 Automatic Burner Control Box Sequence Figure 11 Gas Valve for Heater Models11.5 Combustion Testing Figure 12 Gas Valve for Heater ModelsCheck Gas Rate 11.6 Turning Off the Heater11.7 External Controls 11.8 Complete the Commissioning11.9 Instruction to the User 12.3.2 Burner Lockout Reset Button See Page 28, Section12.2 Heater Operation Figure 13 Heater Operating Sequence12.5 Simple Fault Finding 12.5.1 Simple Fault Finding Burner Faults12.4.2 To Turn the Heater Off See Page 5, Section13.2 Burner Maintenance 13.3 Fan/Motor Assembly Maintenance13.4 Heat Exchanger Maintenance 13.5 Gas Control Valve MaintenanceSECTION 14 CONVERSION BETWEEN GASES 14.1 General 14.2 Burner Conversion14.3 Gas Valves SECTION 15 TROUBLESHOOTING 15.1 General For your safety and optimum heater performance Conduct Commissioning procedure as shownon Page 24, Section 15.3Troubleshooting for Flame Supervision System 15.4Troubleshooting for Solenoid ValvesSECTION 16 REMOVAL AND REPLACEMENT PARTS Burner Components16.1 Gas Valve 16.1.1 Models16.2 Burner Compartment 16.2.1 Burner InjectorsEnsure gas tight fitting of injectors Ensure correct alignment with burners16.3 Ignition Electrode and Flame Probe 16.4 Flue Fan 16.5 Pressure Switch 16.7 CTUA Axial Fan/Guard/Motor Assembly 16.7.1 Fan Removal and Replacement16.7.2 To Replace the Fan Assembly 16.8.1 Fan Removal and ReplacementFigure 14 Centrifugal Fan Orientation 16.9 Fan DataPage Page Page Fire Hazard close to heaterinjury or property damage