Natco ANSI Z 21.10.3 Service Manual page 39

Super high efficiency gas fired water heating combination appliance
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VERY IMPORTANT!!!
SUPER-E
THIS
HAS THE NEW 1200 BOARD AND BLOWER SYSTEM! THE ADDITIONAL FEATURES ARE LISTED BELOW:
1.
THE BOARD WILL DETECT PROPER POLARITY BY ILLUMINATING THE GREEN LED LIGHT LOCATED ON THE LOWER RIGHT
CORNER OF THE BOARD. NO LIGHT MEANS IMPROPER POLARITY!
2.
THE BLOWER CABLE AND THE CURRENT LIMITER HAVE BEEN ELIMINATED.
3.
THE LED DISPLAY IS FIVE TIMES BRIGHTER; GIVING GREATER VISIBILITY IN BRIGHT LIGHT.
4.
THE BLACK PUSH BUTTON IN THE FRONT OF THE CABINET ALLOWS THE USER TO READ IGNITOR DRAW IN
AMPS (2.5 - 3.5), AND FLAME QUALITY IN MICRO AMPS (4.5 - 5.1). TO READ IGNITOR DRAW, WAIT FOR THE LED LIGHT FOR THE
IGNITOR TO COME ON, THEN SIMPLY PUSH THE BLACK BUTTON IN ON THE FRONT OF THE CABINET. TO READ FLAME QUALITY,
WAIT FOR THE GAS VALVE TO BE ACTIVATED AND THE IGNITOR LIGHT TO GO OFF, THEN SIMPLY PUSH IN THE BLACK BUTTON
ONCE. THIS WILL TAKE PLACE IN THE NORMAL OPERATING SEQUENCE IN A HEAT CYCLE.
5.
THE 1200 BOARD AND BLOWER SYSTEM PARTS ARE NOT INTERCHANGEABLE WITH THE VOYAGER PARTS (1000 SYSTEM)
PREVIOUS TO THE 1200 SYSTEM. PARTS FOR THE OLD 1000 VOYAGER SYSTEM ARE STILL AVAILABLE THROUGH OUR
STANDARD DISTRIBUTION.
MOST COMMON SUPER-E INSTALLATION CONCERNS
VENTING:
VENT LENGTH TOO LONG - OVER 85'
VENTING NOT PITCHED PROPERLY - CONDENSATE BUILD UP IN VENT
EXHAUST GAS RE-CIRCULATION - VENT TERMINALS NOT USED, WRONG FITTINGS USED, SIGHT PROBLEMS
BUSH IN FRONT OF VENT TERMINAL
INSIDE CORNER OF BUILDING FOR VENT LOCATION
OVERHANG WITH VENT UNDERNEATH
COMPOUND ROOF PITCH, OR ABOVE ROOF FIRE WALL
ADDITIONAL FITTINGS INSTALLED INTO TERMINALS
VENT SIZED FROM 3" TO 4" BY USING BUSHINGS - INSTEAD OF REDUCING COUPLING OR REDUCING ELBOW
VENT CHANGED FROM 3" TO 4" - WITHOUT GOING REQUIRED 10' ON BOTH INTAKE AND EXHAUST
VENTING NOT CLEANED AND GLUED TOGETHER FOR PRESSURE TIGHT JOINTS
INTAKE AIR CONTAINING EXHAUST FROM ANOTHER VENT OR APPLIANCE
GAS SUPPLY:
GAS PRESSURE TOO LOW - NEED 7" GAS PRESSURE UP TO 14" GAS PRESSURE
GAS METER TOO LOW IN CAPACITY
GAS REGULATOR NOT SIZED PROPERLY - TOO LOW IN CAPACITY
GAS PIPE TOO SMALL - ¾" MINIMUM GAS SUPPLY SIZE
GAS REGULATOR TOO CLOSE TO APPLIANCE - NEED 10' OF PIPE FOR EVERY 200,000 BTU'S PER HOUR
GAS REGULATOR WITH LONG VENT OR BLEED VENT ORIFICE - REGULATOR SLOW TO RESPOND
GAS METER RESTRICTION, OR IN NEED OF REPAIR/REPLACEMENT
GAS SUPPLY PRESSURE DROPS BELOW 3½" WHEN APPLIANCE FIRES
ELECTRICAL:
APPLIANCE NOT GROUNDED
ELECTRICAL POLARITY REVERSED - FLAME WILL LIGHT BUT GO BACK OUT IN 4-6 SECONDS VOLTAGE TOO LOW OR TOO HIGH
APPLIANCE CYCLES, BUT NO IGNITION - LOOK FOR GLOW FROM IGNITOR, IF NOT, REPLACE IGNITOR
PLUMBING:
SSVH MODELS WITHOUT RE CIRCULATING PUMP INSTALLED & WITHOUT WIRING IN PARALLEL WITH HEATING CIRCULATOR
DIELECTRIC UNIONS INSTALLED - RUSTY WATER
CONDENSATE:
CONDENSATE LINE NOT PITCHED TO DRAIN
CONDENSATE LINE NOT DRAINING DUE TO LONG RUN WITHOUT VENT
CONDENSATE PUMP NOT WORKING
CONDENSATE TRAP PLUGGED WITH PVC SHAVINGS
BURNER:
EXTREMELY LOUD BANG ON IGNITION - BURNER FAILED OR END CAP OFF
RED BURNER DECK AS SEEN THROUGH VIEW PORT - GAS VALVE NEEDS ADJUSTMENT, PAGE 32
GAS VALVE:
PUFFING ON IGNITION - ADJUST GAS VALVE, SEE PAGE 32
LOUD POP ON IGNITION, THEN RUNNING SMOOTH - ADJUST GAS VALVE, SEE PAGE 32
HUFF AND PUFF DURING OPERATION - ADJUST GAS VALVE, SEE PAGE 32
RUNNING GREAT BUT INTERMITTENTLY HUFFING OR POPPING - CHECK FOR RE-CIRCULATION UNDER VENTING
© 2006, 2005, 2004 National Combustion Co., Inc.
PAGE: 39

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