Aiko CTH3-115 User Manual

WARNINGFOR YOUR SAFETYIf you smell gas: 1. Open windows. 2. DO NOT try to light any appliance. 3. DO NOT use electrical switches. 4. DO NOT us

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL4 of 71SECTION 2: INSTALLER RESPONSIBILITYThe installer is responsible for the following:• To in

SECTION 3: CLEARANCES TO C OMBUSTIBLES 5 of 71SECTION 3: CLEARANCES TO COMBUSTIBLES3.1 Required Clearances to CombustiblesClearances are the required

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL6 of 71NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.2. Clear

SECTION 3: CLEARANCES TO C OMBUSTIBLES 7 of 71NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.2. Clearances B, C and

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL8 of 71NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.2. Clear

SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 9 of 71SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES4.1 Gas CodesThe type of gas appearing on

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL10 of 71SECTION 5: MAJOR COMPONENTS FIGURE 13: Major Component DescriptionsBurner with Tube Gask

SECTION 5: MAJOR COMPONENTS 11 o f 7 15.1 Standard Parts List*Canadian Models: Rubber (Type 1) Gas Hoses available as an accessory. See Page 37, Sec

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL12 of 71SECTION 6: HEATER INSTALLATIONTo ensure your safety, and comply with the terms of the wa

SECTION 6: HEATER I NSTALLATION 13 of 71FIGURE 14: Critical Hanger PlacementHangerSide ViewMust Be Within 4" (10 cm) Front ViewS-hooksReflectorH

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL14 of 71FIGURE 15: Linear Heater Assembly Overview TubeReflectorReflector End CapReflector Suppo

SECTION 6: HEATER I NSTALLATION 15 of 71FIGURE 16: Linear Heater Layout OverviewBurnerReflectorTubeTube/ReflectorHangerCouplingAssemblyVent AdapterLE

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL16 of 71Step 6.1 Burner Tube InstallationStep 6.2 Tube Clamp Package Installation7' 6"

SECTION 6: HEATER I NSTALLATION 17 of 71Step 6.3 Coupling and Tube AssemblyStep 6.3.1 Coupling and Tube Assembly (Continued)TubeTubeOrient coupling s

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL18 of 71Step 6.3.2 Coupling and Tube Assembly (Continued)Step 6.4 Turbulator Installation10&apos

SECTION 6: HEATER I NSTALLATION 19 of 716.5 Reflector InstallationWARNINGFire HazardSupport reflector with reflector hanger and support strap.Reflect

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL20 of 71Step 6.5.1 Reflector, U-Clip and Reflector Support InstallationThe pictorial drawings of

SECTION 6: HEATER I NSTALLATION 21 of 71Step 6.6 Burner InstallationLockWasherGasketBurnerBolt(Torque 120 in/lb13.56 Nm)S-hookBurner TubeBurner must

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL22 of 71SECTION 7: OPTIONAL HEATER ACCESSORIES7.1 U-Tube ConfigurationHeaters are approved for o

SECTION 7: OPTIONAL HEATER ACCESSORIES 23 of 71FIGURE 17: U-Tube Heater Assembly Overview

© 2012 Roberts-Gordon LLCAll rights reserved. No part of this work covered by the copyrights herein may be reproduced or copied in any form or by any

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL24 of 71FIGURE 18: U-Tube Heater Layout Overview LEGENDa = 14" (36 cm)reflector width (not

SECTION 7: OPTIONAL HEATER ACCESSORIES 25 of 717. 2 E l b o w P a c k a ge ConfigurationStep 7.2.1 Elbow InstallationStep 7.2.2 Elbow InstallationS

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL26 of 71Step 7.2.4 Reflector Joint InstallationStep 7.2.5 Reflector Joint DetailFIGURE 19: Refle

SECTION 7: OPTIONAL HEATER ACCESSORIES 27 of 717.3 Reflector Side ExtensionStep 7.3.1 Bracket InstallationStep 7.3.2 Side Reflector InstallationRefle

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL28 of 717.4 Lower Clearance Shield InstallationStep 7.4.1 Shield Support Strap Assembly7.5 Two-F

SECTION 7: OPTIONAL HEATER ACCESSORIES 29 of 71Step 7.5.2 Frame Shield InstallationStep 7.5.3 Reflector Side Extension Installation for Decorative Gr

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL30 of 717.6 Protective Grille InstallationStep 7.6.1 Silicone Cap InstallationStep 7.6.2 Grille

SECTION 8: VENTING 31 of 71SECTION 8: VENTING8.1 VentingThis heater must be vented in accordance with the rules contained in this manual and with the

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL32 of 718.3 Horizontal VentingIn noncombustible walls only, vent terminal (P/N 02537801-1P) may

SECTION 8: VENTING 33 of 718.8 Vertical Ventilation 4" (10 cm) Pipe8.9 Common Side Wall VentingRequirements:• Maximum of two heaters can be comm

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL34 of 718.10 Common Vertical Venting Requirements:• Maximum of four heaters can be commonly vent

SECTION 8: VENTING 35 of 718.11 Outside Combustion Air SupplyIMPORTANT: If the building has a slight negative pressure or corrosive contaminants such

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL36 of 718.11.4 Vertical Outside Air Supply for Double Heater InstallationRequirements:• Heaters

SECTION 9: GAS PIPING 37 of 71SECTION 9: GAS PIPINGInstall the gas hose as shown in Figure 21. The gas hose accommodates expansion of the heating sys

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL38 of 71FIGURE 21: Gas Connection with Flexible Gas Hose Shut-Off Valve (included with gas hose)

SECTION 10: WIRING 39 of 71SECTION 10: WIRING Heater must be grounded in accordance with applicable codes: United States: refer to National Electrica

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL40 of 7110.2 Central and Satellite Heaters (Zoning Capability)The heater can be configured so th

SECTION 10: WIRING 41 of 7110.2.2 Satellite Heater ConfigurationSatellite heater configuration is set by positioning of jumpers on pin block J10 loca

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL42 of 7110.3 Communication Wiring within a Zone of HeatersSatellite heaters will be wired in ser

SECTION 10: WIRING 43 of 7110.3 Communication Wiring within a Zone of Heaters (continued)Satellite heaters will be wired in series to the central hea

TABLE OF FIGURESFigure 1: Top and Bottom Panel Label Placement ... 2Figure 2: Side and Back Panel Label Placement...

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL44 of 7110.4 Heat Demand Control WiringThe heater input can be controlled by any one of the foll

SECTION 10: WIRING 45 of 7110.4.3 Analog Signal Modulating Thermostat (P/N 90425105)A programmable, 7-day programming, modulating thermostat can be i

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL46 of 7110.4.7 Cable TerminationTab l e l i s t s wiring types, sizes and distances for modula

SECTION 10: WIRING 47 of 71For 4-20mA control of the heater(s) firing rate, the following control conditions apply:ON/OFF relay at the external contr

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL48 of 7110.4.9 Potentiometer Control DevicePotentiometer (10K Ohm"Linear Taper") devic

SECTION 10: WIRING 49 of 71FIGURE 29: Modulating Thermostat Wiring Diagram (LonWorks® [4-20 mA] optional)Description Part NumberThermostat, modulatin

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL50 of 71FIGURE 30: Modulating Thermostat Wiring Diagram (LonWorks® [2-10Vdc with 500 Ohm resisto

SECTION 10: WIRING 51 of 71FIGURE 31: Modulating Thermostat Wiring Diagram with BACnet® (optional) Description Part NumberThermostat, modulating BACn

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL52 of 7110.5 Internal WiringSee Page 39, Section 10.1 through Page 48, Section 10.4.9 for temper

SECTION 10: WIRING 53 of 7110.6 Ladder DiagramSee Page 39, Section 10.1 through Page 48, Section 10.4.9 for temperature control device options andwir

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL54 of 7110.7 Line Voltage Power Wiring10.8 Electrical Connection to the BurnerGnd.120 V-60 HzSup

SECTION 10: WIRING 55 of 7110.9 Low Voltage Control Wiring InstallationDescription Part NumberCable Grommet with Tie 91309605

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL56 of 71SECTION 11: OPERATION AND MAINTENANCE11.1 Sequence of OperationThe control inside the he

SECTION 11: OPERATION AND MAINTENANCE 57 of 71service or maintenance. Allow heater to cool before servicing.Before every heating season, a contractor

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL58 of 71Gas Line Check for gas leaks. See Page 37, Section 9.Burner Observation WindowMake sure

SECTION 12: TROUBLESHOOTING 59 of 71SECTION 12: TROUBLESHOOTINGDANGERElectrical Shock HazardDisconnect electric before service.More than one disconne

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL60 of 7112.1 Control LEDThe control inside the heater's control compartment is equipped wit

SECTION 12: TROUBLESHOOTING 61 of 71RED, 8 flashes: Lockout- Pressure switch failed to operate or modulation current was incorrect. Condition could b

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL62 of 7112.3 Troubleshooting Flow Chart

SECTION 12: TROUBLESHOOTING 63 of 71

SECTION 1: HEATER SAFETY 1 of 71SECTION 1: HEATER SAFETYYo ur Safety is Important to Us!This symbol is used throughout the manual to notify you of po

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL64 of 7112.4 Manifold Gas Pressure MeasurementWARNINGCarbon Monoxide HazardDo not adjust gas val

SECTION 12: TROUBLESHOOTING 65 of 7112.5 Pneumatic Connections

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL66 of 71SECTION 13: REPLACEMENT PARTSCarbon Monoxide HazardWARNINGUse only genuine ROBERTS GORDO

SECTION 13: REPLACEMENT PARTS 67 of 71

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL68 of 71Description Part NumberGas Valve (Natural) 90033105KGas Valve (LP) 90033104KTube Gasket

SECTION 14: GENERAL SPECIFICATIONS 69 of 71SECTION 14: GENERAL SPECIFICATIONS14.1 Material Specifications14.1.1 Reflectors.024 Aluminum(Optional .024

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL70 of 71

SECTION 15: THE ROBERTS GORDON® VANTAGE® MODULATING WARRANTY 71 of 71SECTION 15: THE ROBERTS GORDON® VANTAGE® MODULATING WARRANTYROBERTS-GORDON WILL

CTH3-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL2 of 71FIGURE 1: Top and Bottom Panel Label PlacementLogo LabelRating Plate LabelBottom PanelTop

SECTION 1: HEATER SAFETY 3 of 71FIGURE 2: Side and Back Panel Label PlacementLighting Instruction Plate LabelVent Length LabelCarbon Monoxide Hazard