SERIES TWO HEATER Neco Series Two Centrifugal Heater Installation And Operating Instructions MODEL # CHN - __ __ - __ __ - 2 __ (HIGH) MODEL # CLN - __ __ - __ __ - 2 __ (LOW) Owner's Manual MANUAL # PNEG-584 1
CHECK LIST SERIES TWO HEATER _____ 1. Check all wire connections _____ 2. Spark plug and flame sensor tightness set plug gap to 1/8" _____ 3. Check plug in terminal strips on back of circuit board to be sure they are plugged into proper position. _____ 4. Software settings correct for type of heater (hi-low, on-off) _____ 5. Dip switch settings correct for heater model (slave, master) _____ 6. Most current software version installed _____ 7. Turn heater toggle switch on.
SERIES TWO HEATER TABLE OF CONTENTS TABLE OF CONTENTS Warranty.......................................................................................................................4 Roof Warning, Operation & Safety.....................................................................................5 Safety Alert Decals.......................................................................................................6 Series Two Heater Installation......................................................
ROOF WARNING AND DISCLAIMER SERIES TWO HEATER Roof Damage Warning And Disclaimer GSI DOES NOT WARRANT ANY ROOF DAMAGE CAUSED BY EXCESSIVE VACUUM OR INTERNAL PRESSURE FROM FANS OR OTHER AIR MOVING SYSTEMS. ADEQUATE VENTILATION AND/OR "MAKEUP AIR" DEVICES SHOULD BE PROVIDED FOR ALL POWERED AIR HANDLING SYSTEMS. GSI DOES NOT RECOMMEND THE USE OF DOWNWARD FLOW SYSTEMS (SUCTION). SEVERE ROOF DAMAGE CAN RESULT FROM ANY BLOCKAGE OF AIR PASSAGES.
SERIES TWO HEATER SAFTY ALERT DECALS IMPORTANT: Safety decals should be read and understood by all people in the grain handlng area. The bottom right decal should be present on the inside bin door cover and the roof manway cover.
SAFTY ALERT DECALS SAFETY FIRST General Safety Statements The GSI Group Inc’s Principal concern is your safety and the safety of others associated with grain handling equipment. We want to keep you as a customer. This manual is to help you understand safe operating procedures and some problems which may be encountered by the operator and other personnel.
SERIES TWO HEATER HEATER INSTALLATION CENTRIFUGAL HEATER SPECIFICATIONS Hi-Temp Model Lo-Temp Model All models BTU rating Weight 4000000 145 500000 135 Liquid models Maximum fuel flow (GPH) Orifice size Minimum operating pressure Maximum operating pressure Minimum line size 43 .25 3 30 3/8" N/A N/A N/A N/A N/A Vapor models Maximum fuel flow (CFH) Orifice size Minimum operating pressure Maximum operating pressure Minimum line size 1590 .25 2 30 1" 210 .
HEATER INSTALLATION SERIES TWO HEATER PLENUM TEMPERATURE SENSOR MOUNTING The plenum temperature sensor is the white PVC junction box with bolt extending from outside attached by a cord to the fan/heater control box. 1. 24" to the right side of the transition, drill one 3/8" hole in the center of the plenum in a valley on the bin sidewall. 2. Insert the probe through the hole. 3. Position the housing so that the tabs are vertical, and the cord exits the housing horizontally. 4.
HEATER INSTALLATION SERIES TWO HEATER WIRING HEATER UNIT 1. Be sure fan unit is installed and wired to meet local codes. Be sure equipment is well grounded (see page 9). 2. A separate neutral is required for 120 volt heater circuit in 220 volt 1PH and 3PH fan units. For 460 volt fan units a separate 120 volt power supply or transformer is required. 3. Run S-wire black cord from heater unit to fan unit and secure to fan. 4. Orange and red wires should be connected in series with coil in fan.
HEATER INSTALLATION Power Supply An adequate power supply and proper wiring are important factors for maximum performance and long life of the dryer. Electrical service must be adequate enough to prevent low voltage damage to motors and control circuits (see Electrical Load Informationon page 40) In 220V 1 ph and 220V 3 ph systems a separate neutral wire is required for the 120V heater circuit, and should be connected to terminal #1 in the master heater. Do not run in conduit with motor power lines.
HEATER INSTALLATION SERIES TWO HEATER Standard electrical safety practices and codes should be used when working with a heater. Refer to the National Electric Code Standard Handbook by the National Fire Protection Association. A qualified electrician should make all wiring installations.
HEATER OPOERATION PROCEDURE SERIES TWO HEATER The control panel display showing initial start up. Standard electrical safety practices and codes should be used when working with a heater. Refer to the National Electric Code Standard Handbook by the National Fire Protection Association. A qualified electrician should make all wiring installations. POWER UP All safety and high limit switches are checked upon power up. If a safety or limit is open, the control displays it.
HEATER OPOERATION PROCEDURE SERIES TWO HEATER NORMAL OPERATING DISPLAYS WITH HEATER NOT RUNNING The main display shows the plenum temperature. If the dryer has not been running, the display should show outside temperature. The control is preset at the factory to display temperature in centigrade or fahrenheit "AIRFLOW" or "NO AIRFLOW" is displayed if air is flowing or not flowing. "RX TX" (receive, transmit) is displayed if multiple heaters are connected.
HEATER OPOERATION PROCEDURE STARTING THE DRYER After heater power is turned on, the fan must be turned on. Attempting to start the dryer without the air switch indicating there is airflow will cause an airflow alarm to go off when the start switch is depressed. The airflow alarm is simply the entire display going blank, and the "NO AIRFLOW" message flashing for a few seconds. The display must show "AIRFLOW" before the dryer can be started. To start the dryer, just push the "START" switch.
HEATER OPOERATION PROCEDURE SERIES TWO HEATER 10 - 15 HP UNITS BTU’s Per Gauge Pressure (PSI) PROPOANE MODELS (Approximate) HIGH TEMPERATURE 10-15hp 7/32" orifice OPERATING PRESSURE (PSI) 4 6 8 10 12 2 ALL MODELS 816013 1148640 1409477 1632026 1825859 1995762 14 15 2153700 2227883 Gauge Pressure (Psi) Required To Maintain Temperature ( Approximate ) Fan Model 10HP 15HP Static Pressure 2" 4" 6" 2" 4" 6" ( 10-15 Horsepower High Temp Propane Units Only ) Heat Rise Degrees F 60 80 100 120 140
HEATER OPOERATION PROCEDURE SERIES TWO HEATER 20 - 40 HP UNITS BTU’s Per Gauge Pressure (PSI) PROPANE MODELS (Approximate) HIGH TEMPERATURE 20-40hp 5/16" orifice OPERATING PRESSURE (PSI) 4 6 8 10 12 2 ALL MODELS 1663135 2345140 2878779 3328663 3721115 4068100 14 15 4393548 4541914 Gauge Pressure (Psi) Required To Maintain Temperature ( Approximate ) Static Fan Model Pressure 2" 20HP 4" 6" 2" 25HP 4" 6" 2" 30HP 4" 6" 2" 40HP 4" 6" ( 20-40 Horsepower High Temp Propane Units Only ) Heat Rise Deg
SERIES TWO HEATER HEATER OPOERATION PROCEDURE Lo Temp Units BTU’s Per Gauge Pressure (PSI) PROPANE MODELS (Approximate) LOW TEMPERATURE ALL HP’s 7/64” orifice OPERATING PRESSURE (PSI) ALL MODELS 2 4 6 8 10 12 14 15 203405 287160 351771 409203 457063 497744 538425 555176 BTU’s Per Gauge Pressure (PSI) NATURAL GAS MODELS (Approximate) LOW TEMPERATURE ALL HP’s 5/32” orifice OPERATING PRESSURE (PSI) ALL MODELS 1 2 3 4 5 6 7 177840 251712 308256 355680 397632 435936 470592 1
HEATER OPOERATION PROCEDURE SERIES TWO HEATER ADJUSTING THE VAPORIZOR 1. Vaporizer should be adjusted so the vapor pipe train runs warm to the touch (100°-120°F). 2. Loosen 5/16" bolts on adjustment bracket. 3. Raise vaporizer if running too hot, lower if too cold. 4. Move vaporizer only 1" at a time and allow a few minutes for temperature to equalize. 5. Tighten 5/16" bolts and watch heater run for several minutes to verify adjustment. Adjusting the vaporizer coil on a liquid propane model.
SERIES TWO HEATER HEATER OPOERATION PROCEDURE The limits are continuously checked during the drying operation. A limit switch open or any other error condition will cause the dryer to shut down, and the fan will be shutdown. If a limit opens, or an error condition occurs during drying, the control will lockup in the error display mode. Power must be shut off and back on to the control to clear the error condition-even if the error or limit that caused the shutdown has been corrected.
HEATER OPOERATION PROCEDURE SERIES TWO HEATER PROGRAMMING HOURS TO SHUT DOWN On hi-lo units when the unit reaches cycle set point, the flame will switch to lo-flame and unit will not cycle back to hi-flame until (Set Point minus Temperature Differential) is reached. Temperature differential would normally be set for 10-15 degrees F for high temp units, and 2-5 degrees F for lo-temp units. Humidity Differential--The upper right cursor is flashing indicating the mode.
SERIES TWO HEATER CONFIGURATION DIP SWITCHES (NORMALLY DONE AT FACTORY) These switches are used to configure the heater control for various types of heaters. Stand alone heater with no slaves, all dip switches in the off state. FACTORY CONFIGURATION Multiple heaters connected together through the serial link. Master with one slave-dip switch 7 on/all others off. Slave #1-dip switch one on/all others off. Master with two slaves-dip switch 8 on/all others off. Slave #2-dip switch two on/all others off.
ERROR CONDITIONS LIMIT SWITCHES The following limit switch errors light up individually on the heaters LCD screen: PLENUM, HOUSING, VAPOR, TEMP HI LIMIT. Note: When a shutdown does occur due to an error condition, the amount of time elapsed since the shut- SERIES TWO HEATER down can be viewed by pressing the down arrow switch (up to 218 hours).
HEATER SERVICE SERIES TWO HEATER All NECO heaters are constructed of durable weatherresistant materials, so a minimum amount of service should be required; however before the unit is started for the first time each season there are a few items that need to be checked out. All damaged parts should be repaired or replaced. 1. Disconnect and lock out power to fan and heater. Open control box lid and inspect all components for moisture, vibration or rodent damage.
HEATER WIRING 24 SERIES TWO HEATER
SERIES TWO HEATER NOTES ______________________________________________________________________________________________________ _______________________________________________________________________________________________________ ______________________________________________________________________________________________________ __________________________________________________________________________________________________________ _____________________________________________________________________
WARRANTY SERIES TWO HEATER NECO WARRANTS ALL PRODUCTS MANUFACTURED BY NECO TO BE FREE OF DEFECTS IN MATERIAL AND WORKMANSHIP UNDER NORMAL USAGE AND CONDITIONS FOR A PERIOD OF 36 MONTHS AFTER RETAIL SALE TO THE ORIGINAL END USER OF SUCH PRODUCTS. NECO'S ONLY OBLIGATION IS, AND PURCHASER'S SOLE REMEDY SHALL BE FOR NECO, TO REPAIR OR REPLACE, AT NECO'S OPTION AND EXPENSE, PRODUCTS THAT, IN NECO'S SOLE JUDGMENT, CONTAIN A MATERIAL DEFECT DUE TO MATERIALS OR WORKMANSHIP.
SERIES TWO HEATER Neco Box 12277, 9364 N. 45 St.
