A.O. Smith 317443-000, 100 Power Vent DV Series 120 instruction manual Table of contents

table of contents

table of contents	2	Applicators	31
safe installation, use and service	3	Controls and Switches	33
APPROVALS	3	Blower Prover Switch	33
general safety information	4	Blocked Exhaust Switch	33
Precautions	4	Blocked Intake Switch	33
Grounding Instructions	4	On/Off Switch	33
Hydrogen Gas Flammable	4	Hot Surface Igniter	33
troubleshooting	6	temperature regulation	36
introduction	7	Hi Limit Switch (E.C.O.)	36
Abbreviations Used	7	control system operation	37
Qualifications	7	Overview	37
Qualified Installer or Service Agency	7	Commercial And Residential Models	37
iCOMM™ & BACnet Compatible	7	Control System Navigation	37
Preparing For The Installation	7	User Input Buttons	37
features and components	8	The Desktop Screen	37
installation consideration	9	Status Icons	38
Rough in Dimensions	9	Operating States	39
Locating The Water Heater	10	Control System Menus	39
Insulation Blankets	11	User Settings & Control System Menus	40
Combustion Air and Ventilation	11	Temperatures	40
Unconfined Space	11	Operating Set Point And Differential Adjustment	40
Unusually Tight Construction	12	Temperatures (cont)	41
Confined Space	12	Heater Status	41
Direct Vent Appliances	12	Display Settings	42
Exhaust Fans	12	Heater Information	42
Louvers and Grilles	12	Current Fault	43
Fresh Air Openings For Confined Spaces	12	Fault History	43
Outdoor Air Through Two Openings	12	Fault Occurrence	43
Outdoor Air Through One Opening	12	Restore Factory Defaults	43
Outdoor Air Through Two Horizontal Ducts	13	Service Contact Information	44
Air From Other Indoor Spaces	13	for your information	45
installing the new water heater	14	Start Up Conditions	45
Chemical Vapor Corrosion	14	Smoke/Odor	45
Water Piping	14	Thermal Expansion	45
Power Supply	14	Operational Conditions	45
Power Fluctuations and Electrical Noise	14	Smelly Water	45
Dedicated Power Wiring and Breakers	14	“Air” in Hot Water Faucet	45
Polarity Sensitive	14	periodic maintenance	46
Mixing Valves	15	Venting System Inspection	46
Dishwashing Machines	15	Anode Rod Inspection	46
Space Heating and Potable Water System	15	Temperature-Pressure Relief Valve Operation	46
Closed Water Systems	15	Draining and Flushing	46
Thermal Expansion	16	To Drain the Water Heater Storage Tank	47
Temperature-Pressure Relief Valve	17	To Flush the Water Heater Storage Tank	47
T&P Valve Discharge Pipe Requirements:	17	Service	47
Gas Piping	18	maintenance	48
Condensate Piping	18	Temperature-Pressure Relief Valve Test	48
High Altitude Installations	19	leakage checkpoints	49
Sediment Traps	19	troubleshooting	50
Filling the Water Heater	19	Installation Checklist	50
Venting	20	Water Heater Location	50
Vent Pipe Termination	20	Venting	50
Planning the Vent System	20	Gas Supply and Piping	50
Installation of Vent System	21	Condensate Drain	50
Vent Terminal Installation, Sidewall	21	Electrical Connections	50
Installation Requirements - Commonwealth of Massachusetts....	22	Sequence Of Operation Flow Chart	51
Termination Clearances Sidewall Power Vent	23	Operational Problems	52
Termination Clearances Sidewall Direct Vent	24	Rough Starting, Rough Operation	52
Sequence of Installations, Figure 18A	25	Momentary Ignition	52
Direct Vent Terminal Installation	25	Not Enough Or No Hot Water	52
Installation Sequence	25	Water Is Too Hot	52
Vent Terminals Supplied with Heater Must be Used	25	Noisy Operation	52
Vertical Vent Terminal Installation	26	Replacement Parts	52
Concentric Vent Installation	27	Fault and Alert Conditions	52
Kit Components	27	Fault Conditions	52
Safety Considerations	27	Alert Conditions	52
Installation Procedure 1 Roof Termination, see Figure C	27	Resetting Control System Lock Outs	53
direct vent diagram	30	Diagnostic Checks	53
Vent Pipe Preparation	31	Fault and Alert Messages	54
Primer	31	notes	56
Primer and Cement	31	Limited Warranty	59

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