1SERIES TWO HEATEROwner'sManualMANUAL # PNEG-584Neco Series TwoCentrifugal HeaterInstallation And Operating InstructionsMODEL # CHN - __ __ -

10SERIES TWO HEATER An adequate power supply and proper wiring areimportant factors for maximum performance and longlife of the dryer. Electrica

11SERIES TWO HEATER1. Propane vapor models are designed to run directlyoff of a supply tank or from a separate external vaporizer.2. Run proper size l

12SERIES TWO HEATERALWAYS DISCONNECTAND LOCK OUT POWERBEFORE WORKING ON ORAROUND HEATERThe control panel display showing initial start up.up with the

13SERIES TWO HEATERNORMAL OPERATINGDISPLAYS WITH HEATERNOT RUNNINGdition is corrected, the display returns to its normaloutput. This is not the case

14SERIES TWO HEATER1. At heater turn toggle switchto "ON" position.2. Press the "PROGRAM TEM-PERATURE" button.3. Use the increase

15SERIES TWO HEATER10 - 15 HP UNITSHIGH TEMPERATURE 10-15hp 7/32" orificeOPERATING PRESSURE (PSI)246810121415ALLMODELS 816013 1148640 1409477 163

16SERIES TWO HEATER20 - 40 HP UNITSStaticFan Model Pressure 60 80 100 120 140 160 1802"2245781020HP 4"12345786"12345672"2357912152

17SERIES TWO HEATERBTU’s Per Gauge Pressure (PSI)NATURAL GAS MODELS(Approximate)BTU’s Per Gauge Pressure (PSI)PROPANE MODELS(Approximate)246810121415A

18SERIES TWO HEATERAdjusting the vaporizer coil on a liquid propane model.The top photo shows the setting up (cool),and the bottom photo shows the coi

19SERIES TWO HEATERPROGRAMMING SET POINTSmultiple heaters may be done at anyheater control console. The infor-mation programmed is automaticallytrans

2SERIES TWO HEATER_____ 1. Check all wire connections_____ 2. Spark plug and flame sensor tightness set plug gap to 1/8"_____ 3. Check plug

20SERIES TWO HEATEROn hi-lo units when the unit reaches cycle set point,the flame will switch to lo-flame and unit will not cycleback to hi-flame unti

21SERIES TWO HEATERCONFIGURATION DIPSWITCHES (NORMALLYDONE AT FACTORY)Stand alone heaterwith no slaves, alldip switches in theoff state.These switches

22SERIES TWO HEATERLIMIT SWITCHESThe following limit switch errors lightup individually on the heaters LCDscreen: PLENUM, HOUSING, VA-POR, TEMP HI LIM

23SERIES TWO HEATERAll NECO heaters are constructed of durable weather-resistant materials, so a minimum amount of serviceshould be required; however

24SERIES TWO HEATERHEATER WIRING

25SERIES TWO HEATER___________________________________________________________________________________________________________________________________

26SERIES TWO HEATERWARRANTYEXCEPT FOR THE ABOVE STATED EXPRESS LIMITED WARRANTIES, NECO MAKES NO WARRANTYOF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING,

27SERIES TWO HEATERNecoBox 12277, 9364 N. 45 St.Omaha, Nebraska 68112phone 402-453-6912fax 402-453-0471February 1999

3SERIES TWO HEATERTABLE OF CONTENTSWarranty...

4SERIES TWO HEATERWARNING! BE ALERT!Personnel operating or working aroundelectric fans should read this manual.This manual must be delivered with the

5SERIES TWO HEATER IMPORTANT: Safety decals should be read andunderstood by all people in the grain handlng area.The bottom right decal should be p

6SERIES TWO HEATERSAFTY ALERT DECALSSAFETY FIRSTGeneral Safety StatementsThe GSI Group Inc’s Principal concern is yoursafety and the safety of others

7SERIES TWO HEATERAll modelsLiquid modelsVapor modelsNatural gasmodelsBTU ratingWeightMaximum fuel flow (GPH)Orifice sizeMinimum operating pressureMax

8SERIES TWO HEATERPLENUM TEMPERATURESENSOR MOUNTINGThe plenum temperature sensor isthe white PVC junction box with boltextending from outside attached

9SERIES TWO HEATER1. Be sure fan unit is installed and wired to meet localcodes. Be sure equipment is well grounded (see page 9).2. A separate neutra