Johnson Controls TG9S'MP UIM-H-0712, Ignition System Sequence, Hot Surface Ignition System

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IGNITION SYSTEM SEQUENCE

364861-UIM-H-0712

IGNITION SYSTEM SEQUENCE

1.Turn the gas supply ON at external valve and main gas valve.

2.Set the thermostat above room temperature to call for heat.

3.System start-up will occur as follows:

a.The induced draft blower motor will start and come up to speed. Shortly after inducer start-up, the hot surface igniter will glow for about 17 seconds.

b.After this warm up, the ignition module will energize (open) the main gas valve.

c.After flame is established, the supply air blower will start in about 30 seconds.

HOT SURFACE IGNITION SYSTEM

Do not attempt to light this furnace by hand (with a match or any other means). There may be a potential shock hazard from the components of the hot surface ignition system. The furnace can only be lit automatically by its hot surface ignition system.

CALCULATING THE FURNACE INPUT (NAT. GAS)

Burner orifices are sized to provide proper input rate using natural gas

with a heating value of 1030 BTU/Ft3 (38.4 MJ/m3). If the heating value of your gas is significantly different, it may be necessary to replace the orifices.

NOTICE

DO NOT set manifold pressure less than 3.2” w.c. or more than 3.8” w.c. for natural gas at sea level. If manifold pressure is outside this range, change main burner orifices.

NOTICE

If orifice hole appears damaged or it is suspected to have been redrilled, check orifice hole with a numbered drill bit of correct size. Never redrill an orifice. A burr-free and squarely aligned orifice hole is essential for proper flame characteristics.

DO NOT bottom out gas valve regulator adjusting screw. This can result in unregulated manifold pressure and result in excess overfire and heat exchanger failures.

Verify natural gas input rate by clocking meter.

1.Turn off all other gas appliances and pilots.

2.Run furnace for a minimum of 3 minutes in heating operation.

3.Measure time (in sec) for gas meter to complete 1 revolution and note reading. The 2 cubic feet dial provides a more accurate mea- surement of gas flow.

4.Refer to Table 14 for cubic feet of gas per hour.

5.Multiply cubic feet per hour by heating valve (BTU/cu ft) to obtain input.

If clocked rate does not match the input rate from the unit nameplate. follow steps in next section to adjust the manifold pressure. Repeat steps 2 - 5 until correct input is achieved.

Be sure to relight any gas appliances that were turned off at the start of this input check.

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Johnson Controls Unitary Products

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Contents MODELS TG9S*MP, GG9S*MP INSTALLATION MANUALRESIDENTIAL GAS FURNACE 95.5% AFUE Single Stage Multi-positionSAFETY REQUIREMENTS SECTION I SAFETYSPECIFIC SAFETY RULES AND PRECAUTIONS 364861-UIM-H-0712STEP 6 - Gas Piping and Gas Pipe Pressure Testing STEP 1 - SafetySTEP 2 - General Installation 364861-UIM-H-0712364861-UIM-H-0712 Clearances for access/serviceInstallation in a residential garage INSPECTIONinstalled FLOOR BASE AND DUCTWORK INSTALLATION - DOWNFLOWThe duct system’s design and installation must SECTION II DUCTWORKFURNACE ASSEMBLY - MC & FC SERIES COILS COIL INSTALLATIONCOIL/FURNACE ASSEMBLY - MC/FC/PC SERIES COILS COIL FLANGE INSTALLATIONBOTTOM RETURN AND ATTIC INSTALLATIONS DOWNFLOW DUCT CONNECTORSCOIL / FURNACE ASSEMBLY - HC SERIES COILS DIMENSION “C” INCH364861-UIM-H-0712 ATTIC INSTALLATIONSUSPENDED FURNACE / CRAWL SPACE INSTALLATION DOWNFLOW APPLICATIONCabinet Dimensions Inches FILTER INSTALLATIONFIGURE 13 Dimensions attempt to install filters inside the furnaceGAS PIPING INSTALLATION DANGERGAS SAFETY SECTION IV GAS PIPINGELECTRICAL POWER CONNECTIONS SECTION V ELECTRICAL POWERHIGH ALTITUDE PRESSURE SWITCH CONVERSION DANGERSUPPLY VOLTAGE CONNECTIONS LOW VOLTAGE CONTROL WIRING CONNECTIONS364861-UIM-H-0712 InputAC 5D 364861-UIM-H-0712Johnson Controls Unitary Products HP 2C Single Stage Heat Pump - Single Stage PSC Furnace364861-UIM-H-0712 SECTION VI TWINNING AND STAGING ACCESSORY CONNECTIONSELECTRONIC AIR CLEANER CONNECTION 364861-UIM-H-0712Staging Operation 364861-UIM-H-0712Twinning Operation STAGINGJohnson Controls Unitary Products 364861-UIM-H-0712CONDENSATE DRAIN TERMINATION Open Stand Pipe Anti-siphonair vent 5” Min TeeINDUCER ROTATED FOR RIGHT SIDE VENTING pressure switch hose1 pressure switchhose UPFLOWAIRFLOW AIRFLOW DOWNFLOW - INDUCER ROTATED FOR LEFT SIDE VENTINGDOWNFLOW - INDUCER ROTATED FOR RIGHT SIDE VENTING INDUCER AS RECEIVED Except for 130K Model HORIZONTAL - LEFT INDUCER ROTATEDHORIZONTAL - LEFT AIRFLOWHORIZONTAL - RIGHT INDUCER ROTATED Move pressure switch hose to this position1Move pressure switch hose to this position HORIZONTAL - RIGHT364861-UIM-H-0712 COMBUSTION AIR AND VENT SAFETYSECTION VIII COMBUSTION AIR AND VENT SYSTEM COMBUSTION AIR/VENT PIPE SIZINGElbow A Dimension COMBUSTION AIR AND VENT PIPING ASSEMBLYFIGURE 29 Dimensions 364861-UIM-H-0712364861-UIM-H-0712 Canadian Installations1,3US Installation2,3 VENT CLEARANCESVENT APPLICATIONS AND TERMINATION 364861-UIM-H-0712VENT SYSTEM VENTING MULTIPLE UNITSCOMBUSTION AIR SUPPLY 364861-UIM-H-0712DOWNWARD VENTING Outdoor Combustion AirDampers, Louvers and Grilles Canada Only 364861-UIM-H-0712Ambient Combustion Air Supply Combustion Air Source From OutdoorsVentilated Combustion Air 364861-UIM-H-0712Air Supply Openings and Ducts Ventilated Combustion Air Termination364861-UIM-H-0712 SECTION IX START-UPAND ADJUSTMENTSSpecially Engineered Installations VENT BLOWER ROTATIONCALCULATING THE FURNACE INPUT NAT. GAS 364861-UIM-H-0712IGNITION SYSTEM SEQUENCE HOT SURFACE IGNITION SYSTEM1 Revolution 364861-UIM-H-0712Johnson Controls Unitary Products 1 Cu FtRead the inlet gas pressure ADJUSTMENT OF MANIFOLD GAS PRESSURE & INPUT RATE364861-UIM-H-0712 Read the manifold gas pressureDANGER ADJUSTMENT OF TEMPERATURE RISEADJUSTMENT OF FAN CONTROL SETTINGS 364861-UIM-H-0712364861-UIM-H-0712 Bottom Airflow Data SCFM364861-UIM-H-0712 Johnson Controls Unitary ProductsBLOWER DOOR SAFETY SWITCH SECTION X SAFETY CONTROLSSECTION XI NORMAL OPERATION AND DIAGNOSTICS ROLLOUT SWITCH CONTROLSFURNACE CONTROL DIAGNOSTICS 364861-UIM-H-0712Johnson Controls Unitary Products DIAGNOSTIC FAULT CODE STORAGE AND RETRIEVAL SECTION XII REPLACEMENT PARTS LISTREPLACEMENT PART CONTACT INFORMATION 364861-UIM-H-0712DIAGRAM Wiring Diagram - 95% Single-StageFurnaceSECTION XIII WIRING Johnson Controls Unitary ProductsYork International Corp 5005 York Drive Norman, OK