A.O. Smith Comprehensive Water Heater Manual for Your Installation Needs

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3 Installation

3.4Technical speciﬁcations The tables below contain the technical data.

3.4.1Dimensions of the device

Top and bottom views of the device

Legends

See the table.

			IMD-0529 R1
Dimensions (all sizes in mm, unless stated otherwise)

Dimension	Description	TWI 35-130	TWI 45-190
A	Overall height	1270	1620
D	Device diameter	560	560
E	Depth	730	730
G	Diameter ﬂue gas discharge/air supply	80/125	80/125
H	Height ﬂue gas discharge/air supply	385	385
Hx	x-position ﬂue gas discharge	300	300
Hy	y-position ﬂue gas discharge	205	205
K	Height gas/burner connection	160	160
M	Height cold water supply	400	400
N	Height hot water outlet	1270	1620

18	Instruction manual TWI 35-130 G/TWI 45-190 G

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Contents 35-130 45-190 Your installer Page Page Copyright 2007 A.O. Smith Water Products Company Page Installation ErrorsMaintenance Operation of the deviceTable of content Warranty certiﬁcateAbout the device What to do when you smell gas RegulationsIntroduction Introduction Target groupsInstallation Chapter Target groups DescriptionWarranty certiﬁcate This chapter contains the terms of warrantyOperation of the device Introduction This chapter will cover in the given orderSecurity of the device Introduction Operation of the deviceHeating cycle Security of the water temperature Air pressure switchGas control 4 Fan3 T&P valve Unvented installationVented installation Installation PackagingInstallation Working area Dimensions of the device Dimension Description TWIDimension Description TWI Description Unit TWIVented Cold water side Hot water sideCirculation piping Condensation drainageAir supply and ﬂue gas discharge Introduction Requirements for ﬂue gas discharge materialDevice types Device types Description Concentric connectionsDevice Diameter Maximum length Maximum num Ber of 90 bends Practical example of concentric ﬂue gas discharge ExampleSpeciﬁcations Subject DescriptionParallel connections Device Diameter Maximum running lengthBend Practical example of parallel ﬂue gas discharge ExampleDevice with parallel ﬂue gas discharge material Electrical connection PreparationConnector block Check and adjust the CO2-value Connect the mains voltage Isolating transformerChecking procedure Gas controlAdjust the CO2-value Conversion to another gas category Conversion to another gas category Fill UnventedFill the device Fill unvented installations Fill vented installationsDrain Drain vented InstallationsDrain unvented Opening the gas valve 3.5 Connections diagram Start upStart up Shut down Introduction You canFor a short time Electrically isolateShut down Errors visible on the control ErrorsIntroduction Distinction is made between General errors Explosive ignition Symptom Cause Solution Remark Gas smellWater leakage Symptom Cause Solution Remark Insufﬁcient or no Hot waterTroubleshooting table for errors visible on the control Light pulses Cause Solution RemarkLight pulses Cause Solution Remark SL3 See 12.2 Electrical circuit diagramTWI Maintenance Introduction Prepare maintenanceMaintenance Warranty certiﬁcate 11.1 Warranty general11.2 Warranty tank 11.3 ConditionsWarranty certiﬁcate 11.6 Claims11.7 Obligations SmithAnnex Electrical circuit diagram AnnexWiring Annex Index ConnectUser Warranty IndexPage 0308 489 R1.0