SERVICE HANDBOOK

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CCB (CONT)ULTRA HIGH EFFICIENCY POWER VENT/POWER DIRECT VENT - <strong>SERVICE</strong> MANUALJ1 Socket - TransformerPIN #1 120 VAC hot to transformer2 Not used3 120 VAC neutral to transformer4 24 VAC out from transformer5 24 VAC out from transformerDESCRIPTIONJ2 Socket - 120 VAC To BlowerPIN #1 120 VAC hot to blower2 120 VAC neutral to blower3 Not used4 Not usedDESCRIPTIONJ3 Socket - 120 VAC Power SupplyPIN #1 120 VAC hot2 Earth Ground3 120 VAC neutralDESCRIPTIONJ4 Flame Sensor - Male Spade ConnectorJ5 Socket - Igniter 120 VAC HSI (hot surface igniter - Silicon Carbide)PIN #1 120 VAC hot2 120 VAC neutralDESCRIPTIONJ6 Socket - Gas Valve, Pressure Switches, Enable/Disable CircuitPIN #DESCRIPTION1 Not used2 Gas valve - 24 VAC3 Not used4 Blocked Intake air pressure switch5 Blocked Exhaust air pressure switch6 Blower Prover air pressure switch7 Blower Prover air pressure switch8 Enable/disable external control circuit - jumper installed from factory9 Not used10 Blocked Exhaust air pressure switch11 Enable/disable external control circuit - jumper installed from factory12 Not used13 Not used14 Blocked Intake air pressure switch15 Gas valve - 24 VACTechnical Literature Department 37 of 52 Ashland City, TN © 2008Servicing should only be performed by a Qualified Service Agent
ULTRA HIGH EFFICIENCY POWER VENT/POWER DIRECT VENT - <strong>SERVICE</strong> MANUALCCB (CONT)J7 Socket - Temperature Probe/ECO (immersion probe - top of the water heater)PIN #DESCRIPTION1 ECO (energy cut out) 24 VAC out (red wire)2 Upper temperature probe (thermistor) +5.0 VDC (black wire)3 Upper temperature probe (thermistor) -5.0 VDC (black wire)4 ECO (energy cut out) 24 VAC return (red wire)J9 Port - Communication Port - Not UsedJ10 Socket - Not UsedJ11 Port - Communication Port - Not UsedJ13 Socket - Blower Speed Control (VFD)PIN #DESCRIPTION1 Not used2 Not used3 To Blower low voltage PWM plug (see page 10) - pin #5 (white w/grn stripe)4 Not used5 Not used6 Not used7 To Blower low voltage PWM plug (see page 10) - pin #4 (white w/blue stripe)8 To Blower low voltage PWM plug (see page 10) - pin #1 (white w/brn stripe)J15 Socket - Not UsedJ16 Port - Communication Port - UIM Display (user interface module)S1 Dip SwitchThe S1 dip switches are configured from the factory and should not be changed. Theillustration below shows the 4 dip switches with labeling. Dip switches are toggle type microswitches. Flipping a dip switch towards “Open” would be the same as “Off.” Flipping a dipswitch the other way (towards the switch numbers) is the same as “On.”Dip switch #1 is used to configure the water heater to declare a fault condition and lock outafter one or three failed trials for ignition. The factory setting is “on” for three trials.Dip switches #2 and #3 are used when this control system is installed on other products.The factory setting for these two dip switches is “on.”Dip switch #4 is a spare, configuration does not matter.OFFOPENExtInput1 RetryUse YesType TstatSpareOPEN1 2 3 43RetriesNoVentSpareONCLOSEDTechnical Literature Department 38 of 52 Ashland City, TN © 2008Servicing should only be performed by a Qualified Service Agent
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Page 54: 500 Tennessee Waltz ParkwayAshland

SERVICE HANDBOOK

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