Home

Modine Manufacturing BAE User's Manual

1. 145 145 000 Btu hr input MOTOR VENDOR CODE 2 EE d n YER oF etc etc MANUFACTURE 91 1991 FAN OR BLOWER 92 1992 VENDOR CODE etc Heat Exchanger 01 Revcor nao 08 Brookside A Aluminized etc S Stainless Steel WEEK OF SERIES IDENTITY NUMBER MANUFACTURE Identifies which series of controls 10 10 week of 1995 were furnished on the unit 25 25 week of 1995 etc 26 Heater Parts from ACF Greenhouses CONTROL OPTIONS Propeller and Blower Unit Heaters PAE and BAE Models Thermostat Voltage Control Code No Service Voltage Control System Description Single Stage Standing Pilot 100 Shut Off Utilizes a single stage combination gas control and 115V natural thermocouple Pilot needs to be manually lit initially and stays lit 200 230V natural 115V propane 200 230V propane Two Stage Standing Pilot 100 Shut Off Utilizes a two stage gas control which fires at 50 or 115V 100 of full rated input and thermocouple Pilot needs to be manually lit initially and stays lit 200 230V Available on PAE BAE models only 115V 200 230V Single Stage Intermittent Pilot Ignition 100 Shut Off with Continuous Retry Utilizes a single 115V stage combination gas control and an ignition control continuous retry Pilot is automatically lit on 200 230V call for heat 115V 200 230V Mechanical Modulation with Automatic Pilot Ignition 100 Shut Off with Continuous Retry Utilizes 115V
2. 400 E 14 13 16 16 13 16 18 9 16 40 Downward 16 16 20 24 22 26 4 3 4 14 13 16 16 13 16 18 9 16 18 9 16 21 1 16 23 3 16 20 23 36 26 3 16 26 316 31 1 8 37 1 2 24 24 36 36 11 11 90 Vertical 16 16 20 24 24 24 15 17 22 29 18 9 16 21 1 16 23 3 16 31 1 8 37 1 2 24 24 34 34 14 14 6 6 8 0 20 C 4 34 39 D 10 10 12 14 13 16 16 13 16 18 9 16 10 4 9 12 26 3 16 16 20 25 4 20 23 30 30 8 10 10 40 Splitter 2 20 24 2 24 24 2 24 24 3 33 3 40 40 11 14 14 21 20 27 14 15 Heater Parts from ACF Greenhouses PERFORMANCE DATA HOODS Performance Data 30 60 and 90 Downward Deflector Hoods Propeller Models Mounting Height to Bottom of Heater 30 Downward Hood For Propeller Units Model PAE 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 PAE 350 PAE 400 1024 32 XYZ XYZ 14 30 41 XYZ 183852 XYZ 13 28 39 XYZ 17 36 49 XYZ 17 36 49 XYZ 23 48 65 XYZ 20 42 57 XYZ 23 48 65 XYZ 24 50 68 9 21 30 12 29 39 17 37 51 11 26 36 15 35 47 15 34 47 22 47 64 19 41 56 22 47 64 23 49 67 6 17 24 11 26 36 16 36 49 10 24 33 14 33 45 14 33 45 21 46 63 18 40 54 21 46 62 22 48 65 9 23 32 14 34 47 7 19 27 13 31 42 12 30 42
3. 612 544 8626 MISSISSIPPI Ward Mechanical Jackson MS 601 956 3002 MISSOURI Evans Maille St Louis MO 314 822 1023 MONTANA John Klaboe Butte MT 406 782 6366 NEBRASKA B G Peterson Co Omaha NE 402 344 4311 NEVADA John A Sandberg Co Las Vegas NV 702 367 1657 NEW HAMPSHIRE Emerson Swan Inc Randolph MA 617 986 2000 NEW JERSEY C R Hutcheon Inc Bloomfield NJ 201 743 9770 NEW MEXICO The Socha Company Albuquerque NM 505 839 0103 NEW YORK Emerson Swan Inc East Greenbush NY 518 477 2693 Edward H Cox amp Co Hamburg NY 716 648 6321 R P Fedder Corp Rochester NY 716 288 1600 Wales Darby Inc Ronkonkoma NY 516 585 6800 Fedder Associates Syracuse NY 315 437 8451 NORTH CAROLINA L R Gorrell Co Asheville NC 704 253 1856 L R Gorrell Co Charlotte NC 704 333 8436 L R Gorrell Co Greensboro NC 919 373 1281 L R Gorrell Co Raleigh NC 910 821 1161 NORTH DAKOTA Walters Climate Inc Minneapolis MN 612 544 8626 OHIO R G Anderson Co Cincinnati OH 513 527 2300 Mussun Sales Inc Cleveland OH 216 431 5088 Mussun Sales Inc Columbus OH 614 294 4822 Stoermer Equipment Dayton OH 513 275 5007 Toledo Thermal Toledo OH 419 475 7100 OKLAHOMA A M E Inc Oklahoma City OK 405 843 9788 OREGON Proctor Sales Inc Portland OR 503 639 1557 PENNSYLVANIA H amp H A
4. 90 HOOD poem 5 CN T 17 Heater Parts from ACF Greenhouses PERFORMANCE DATA BLOWER UNIT HEATERS Models With or Without Blower Enclosure 2 0 4 Static Pressure Sheave Sheave Sheave d Sheavd Drive Turns RPM HP Drive Turns RPM HP Drive Turns RPM Drive HP Drive No Open Open No Open lo No 1 7 1 i i 1 N 1 3 C No c8 P 14 NIN oo oo aon BR DINO OF gt AININ W O11 Of on O OF OF YOUNG NO 125 000 100 000 145 000 116 000 175 000 141 750 200 000 160 000 C106 0 C101 C101 250 000 18 Heater Parts from ACF Greenhouses PERFORMANCE DATA CONTINUED Models With or Without Blower Enclosure 2 9 Data for use with filters only 0 5 Static Air Pressure 0 6 Static Air Pressure Bheave HP i Drive Turns No Open 5 5 0 5 60 1250 580 3 70 1071 570 3 5 4 65
5. F1 C 10 where F1 input to heater Btuh F2 input to heater cu ft per hr C heating value of gas Btu per cu ft T time to consume 1 cu ft of gas in sec The heating value of gas may be determined from the local utility or gas dealer These are representative values GAS Btu per cu ft Natural 1000 1150 Propane 2500 3 Ifthe seconds for 1 cu ft are more input less than shown in Table 5 for model being tested locate the combination gas control and pressure regulator adjustment screw see Figure 8 Remove the cap screw from the pressure regulator and make one clockwise turn at a time on the adjustment screw until the correct time is obtained If the seconds are less input greater than indicated in the table follow the same procedure in a counter clockwise direction If the correct number of seconds cannot be obtained check orifice size Correct orifices can be obtained from Modine Manufacturing Company Buena Vista Virginia When requesting orifices state type of gas heating value and its specific gravity Also give model number of unit For example if the input to the heater is 100 000 Btuh and the heating value of the gas is 1000 Btu per cu ft then by the second formula the input is 100 cu ft per hr Table 4 indicates the time for one revolution of various size meter dials with various input rates If a 1 cu ft meter dial is used we proceed down the cu ft column to 100 cu ft per hr
6. Condensing Vent must be liquid and gastight Condensate must be drained 10 Check vent system to see that combustion products are being vented properly Operate unit for several minutes and then pass a lighted match around the edge of the diverter relief opening If the flame is drawn into the opening the vent system is drawing properly If not make adjustments to provide adequate draft see page 21 ADDITIONAL VENTING REQUIREMENTS FOR CATEGORY II UNITS Vent system must provide for drainage of condensate At the low point of the vent system install a tee fitting with a connector and attach flexible tubing minimum 3 8 inch I D and run to a drain ADDITIONAL VENTING REQUIREMENTS FOR VENTING INTO AN EXISTING MASONRY CHIMNEY OR COMMON VENT CATEGORY I and II UNITS ONLY 1 Do not vent a Category or II unit into common vent with mechanical draft systems operating under positive pressure Category III or IV units 2 When connecting vent to an existing chimney do not push vent pipe beyond internal surface of chimney 3 When venting into a common vent the area of the common vent should be equal to or greater than the area of the largest vent plus 50 percent of the area of all additional vents 4 When venting into a common vent the individual vents should enter at different levels Figure 3 Unit Heater Venting 10 MIN TO WALL OR ADJOINING BUILDING APPROVED TER
7. In aircraft hangars keep the bottom of the unit at least 10 from the highest surface of the wings or engine enclosure of the highest aircraft housed in the hangar and in accordance with the requirements of the enforcing authority and or NFPA No 409 Latest Edition In garages or other sections of aircraft hangars such as offices and shops which communicate with areas used for servicing or storage keep the bottom of the unit at least 7 above the floor In public garages the unit must be installed in accordance with the Standard for Parking Structures 88A and the Standard for Repair Garages 88B In Canada installation of unit heaters in airplane hangars must be in accordance with the requirements of the enforcing authority and in public garages in accordance with the current CAN CGA B149 codes Consult piping electrical and venting instructions in this manual before final installation All literature shipped with your unit should be kept for future use for servicing or service diagnosis Do not discard any literature shipped with your unit Gas fired heating equipment which has been improperly vented or which experiences a blocked vent condition may have the flue gases accidentally spilled into the heating space See page 20 for specific information about the blocked vent safety switch supplied on the unit When servicing or repairing this equipment use only Modine approved service re
8. and then horizontally to the left to determine a time of 36 seconds for one revolution of the dial Similarly if the 1 2 cu ft dial is used we determine a time of 18 seconds for one revolution at the required input B Pressure Method The pressure method determines input by measuring the pressure of the gas in the manifold in inches of water 1 Determine correct manifold pressure from Table 4 2 Locate combination gas control 3 Move gas control knob or lever to off 4 Remove the 1 8 pipe plug in outlet pressure tap in combination gas control see Figure 9 and attach water manometer or U tube which is at least 12 high 5 Follow lighting instructions and turn thermostat up to get unit to fire 6 If pressure as indicated by U tube is less than 1 2 higher or lower than indicated in Table 4 adjust regulator as described under Meter Timing Method Step 3 If pressure as indicated by U tube is more than 1 2 higher or lower than indicated in Table 4 check inlet pressure at unit The inlet pressure should be 6 7 W C pressure on natural gas and 12 14 W C on propane gas After adjustment move gas control knob or lever to off and replace 1 8 pipe plug With the plug in place follow the lighting instructions to put unit back in service Heater Parts from ACF Greenhouses CHECKING INPUT RATE Figure 9 U TUBE ECO ON UNITS MANOMETER SO EQUIPPED SEE NOTE
9. 3000 3300 4100 4400 5000 5900 Outlet Velocity 616 789 893 713 852 832 1024 960 1094 1094 Air Temp Rise F 49 51 50 46 52 49 51 45 51 52 50 Mounting Hgt 11 10 13 17 13 16 15 20 18 20 21 Max Ft Heat Throw Ft 27 39 36 47 59 45 55 54 72 64 71 74 Horsepower 1 40 1 30 1 6 1 6 1 6 1 6 1 8 1 3 3 4 Motor Amp Draw 1 3 2 3 2 3 2 7 3 1 3 1 3 1 3 1 5 7 5 7 9 1 9 1 Data 1550 1050 1075 1075 1075 1075 1075 1075 1140 Shaded Shaded Perm Perm Perm Perm Perm Perm Perm Pole Pole Split Cap Split Cap Split Cap Split Cap Split Cap Split Cap Split Cap Ratings shown are for elevations up to 2 000 ft For elevations above 2 000 feet ratings should be reduced at the rate of 496 for each 1 000 feet above sea level In Canada see rating plate D At 65 F ambient and unit fired at full rated input Mounting height as measured from bottom of unit and without deflector hoods All single phase motors are totally enclosed and thermal overload protected Data listed is for standard 115 volt 60 hertz single phase motors 12 Heater Parts from ACF Greenhouses DIMENSIONS PERFORMANCE BAE For blower sizes minimum clearance to combustibles from I the bottom is 12 from the sides 18 and from the top and vent connector is 6 Allow at least 12 at the rear or 6 beyond the end o
10. 5 ON PAGE 16 FAN GUARD LIGHTING INSTRUCTION amp RATING PLATE FAN MOTOR GAS DESIGNATION JUNCTION BOX PLATE PILOT TUBING 2 CONTROL S vi TRANSFORMER oner lt lt Sepe PRESSURE TAP Table 3 Meter Timing Gas Time required for one revolution is charted for various size meter dials and various rates of gas input in cu ft per hour To convert to Btuh multiply by the heating value of the gas used Time for 1 Revolution Input Cu Ft per Hour When Meter Dial Size is 1 2 cu ft 1 cu ft 2 cu ft 5 cu ft Table 4 Manifold Pressure amp Gas Consumption BTU Cu Ft Specific Gravity Natural 1050 0 60 Manifold Pressure In W C CFH Gal Hr Propane Sec cu ft Orifice Drill Size CFH Gal Hr Propane Sec cu ft Orifice Drill Size CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 100 BAE 100 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 125 BAE 125 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 145 BAE 145 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 175 BAE 175 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 200 BAE 200 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 225 BAE 225 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 250 BAE 250 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 300 BAE 300 CFH Gal Hr Propane
11. 70 0 0 0 5 2625 565 55 6 Filters For blower units with enclosure and filter add the following static pressures to the static pressure determined by the system designer for total external static pressure 50 0 1 W C BAE75 0 2 W C BAE100 0 1 W C BAE125 0 1 W C BAE145 0 2 W C BAE175 0 1 W C BAE200 0 1 W C BAE225 0 1 W C BAE250 0 2 W C BAE300 BAE350 0 2 W C BAE400 0 2 W C Shaded area indicates the unit s standard motor amp standard drive arrangement For operation outside the shaded area specify motor Hp and drive number Outputs shown are for elevations up to 2000 For ele vations over 2000 output needs to be reduced 4 for each 1000 above sea level Does not apply in Canada see rating plate Sheave turns open are approximate For proper opera tion check blower rpm amp Mounting height and throw for BV models w o duct work or nozzles and at Cfm s yielding a 55 tempera ture rise are the same as those listed on page 8 for equivalent PV models Rpm setting shown in bold type indicate factory set tings and standard drives 19 Heater Parts from ACF Greenhouses SERVICE INSTRUCTIONS SAFETY DEVICES Figure 13 Cross section of Propeller Type
12. 75 BAE 100 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 300 BAE 350 40 Max Mounting Ht ft H Downward Heat Throw ft T Nozzle Heat Spread ft S Max Mounting Ht ft H 90 Vertical Nozzle Heat Spread ft S Max Mounting Ht ft H 40 Splitter Heat Throw ft T Nozzle Heat Spread ft S Max Mounting Ht ft H 5 Way Nozzle Heat Spread ft S The above table is based on an inlet air temperature of 70 F and an air temperature rise of 55 F Air deflectors on 40 and 90 discharge nozzles set perpendicular to the face of the air discharge opening On 5 way nozzles all air deflectors set perpendicular to floor Static pressure measured at 0 1 W C for 90 nozzle 0 2 W C for 40 downward and 5 way nozzle and 0 3 W C for 40 splitter nozzle Outlet velocities are approximately 1750 FPM for the 40 nozzles 1000 FPM for the 90 nozzle and 1300 FPM for 5 way For motor size drive and blower rpm refer to pages 18 and 19 Mounting height measured from bottom of unit 14 Heater Parts from ACF Greenhouses DIMENSIONAL DATA Downward Nozzles Downward Nozzles Dimensions in inches 40 Splitter No D 2s Model Number Nozzle Dimension Type BAE 100 BAE 125 BAE 145 BAE 175 BAE 200 23 316 BAE 225 26 316 BAE 250 26 36 300 350
13. 9 Heater Parts from ACF Greenhouses Lack of primary air will cause soft yellow tipped flames Excess primary air produces short well defined flames with a tendency to lift off the burner ports Proper operation with natural gas provides a soft blue flame with a well defined inner core To increase primary air loosen the manifold mounting screws and tap the manifold away from the mixer tubes until yellow tipped flames disappear See Figure 14 To decrease primary air move the manifold closer to the mixer tubes until flames no longer lift from burner ports but being careful not to cause yellow tipping Retighten manifold mounting screws after adjustment Propane Gas Flame Control Adjustable primary air shutters are attached to the orifices on the gas manifold for units equipped for propane gas operation See Figure 15 An optimum flame will show a slightly yellow tip Prior to flame adjustment operate unit heater with casing closed for at least five minutes Then lower hinged bottom and adjust primary air shutters Loosen wing screws and push shutters forward to reduce primary air until yellow flame tips appear Then increase primary air until yellow tips diminish to just a slightly yellow tip and a clean blue flame with a well defined inner cone appears It may also be necessary to adjust the manifold position in addition to adjusting air shutters to obtain proper flame Follow the instructions under Natural Gas F
14. Sec cu ft Orifice Drill Size PAE 350 BAE 350 CFH Gal Hr Propane Sec cu ft Orifice Drill Size PAE 400 BAE 400 CFH Gal Hr Propane Sec cu ft Orifice Drill Size Above gases based on average standards Units can be furnished for gases of different values and specific gravities Gal Hr based on 60 F 30 Hg 91 500 BTU Gal In Canada refer to rating plate on side of unit for orifices at high altitude Figure 10 Dials of Typical Gas Meter Table 5 Orifice Drill Sizes with Decimal Equivalents Main Burner Orifices Pilot Orifice Identity Numbers Dia Dia Decimal Decimal Equivalent Equivalent 1610 1040 1570 0995 1540 0980 1495 0935 1470 0890 1440 0820 1405 0635 1285 D As number appears on top of pilot orifice Pilot Burner Manufacturer Identity No Natural Gas HCR 18 or BCR 18 Identity No Propane Gas Honeywell HBR or BBR 12 or 11 Robertshaw Johnson 11 Heater Parts from ACF Greenhouses DIMENSIONS PERFORMANCE PAE For all sizes minimum clearance to com bustibles from the bottom is 12 inches and from the sides 18 inches for sizes 30 100 from the top is 1 inch and from the vent con nector 2 inches for sizes 125 300 from the top is 2 inches and from the vent connector 3 inches and for sizes 350 and 400 from the top is 3 inches and from the vent connector 6 inches Also allow at least 12 inches at
15. The adjustable motor sheave has been pre set to permit operation of this unit under average conditions of air flow and without any external static pressure The motor sheave should be adjusted as required when the unit is to be operated at other than average air flows and or with external static pressures Adjustment must always be within the performance range shown on pages 18 and 19 and the temperature rise range shown on the unit s rating plate To determine the proper blower speed and motor sheave turns open the conditions under which the unit is to operate must be known If the blower unit is to be used without duct work nozzles or filters the only criteria for determining the motor sheave turns open and blower speed is the amount of air to be delivered The performance tables for blower models are shown on pages 18 and 19 As an example a model BAE 350 unit operating with no external static pressure that is no duct work nozzles etc and is to deliver an air volume of 6481 cfm cfm cubic feet of air per minute requires that the unit be supplied with a 5 hp motor a C116 drive and the drive sheave must be set at 3 turns open to achieve a blower speed of 940 rpm see performance table for units with or without blower enclosure page 18 See Blower Adjustments on page 8 for setting of drive pulley turns open If a blower unit is to be used with ductwork or nozzles etc the total external static pressure under which the unit is
16. Unit ALUMINIZED STEEL DRAFT DIVERTER VENT PIPE CONNECTION HEAT EXCHANGER FAN amp FAN GUARD LIMIT CONTROL MAIN BURNER BLOCKED VENT SAFETY SWITCH DIVERTER RELIEF OPENING DEFLECTOR BLADES COMBUSTION AIR INLETS Limit Control Overheat Switch The limit control mounted on the left inner side panel when facing front of unit will shut off the gas supply to the main burner in the event of overheating It is a single pole single throw switch The contacts open to shut the electric gas valve off in the event the unit should overheat This limit control should operate only when something is seriously wrong with the unit Anytime this control operates correct the difficulty immediately or serious damage may result If the limit control cuts off the gas supply during normal operation 1 Make sure deflector blades are open and that there are not any obstructions in the air inlet or discharge outlet 2 Check actual input to unit against rated input 3 Check to be sure motor is operating 4 On propeller units check that fan is not loose on motor shaft On blower units check belt and sheave for tightness or damage 5 On propeller units check fan speed against speed on motor nameplate On blower units check blower speed against Performance Data on pages 18 or 19 check for restriction in ducts and for dirty filters 6 Check to make sure the venting system is not damaged or blocked Als
17. air If flame cannot be adjusted properly check input rate to heater and manifold gas pressure reduce if necessary Check the orifice size with those listed in Table 5 to be sure the unit is not operating over rated input Primary air shutters when used d Clean heat exchanger tubes from bottom with stiff brush after removing burner Do not use wire brush e Bottom pan f Fan blade Check wiring for possible loose connections Controls See control instruction sheets furnished separately with the unit heater To Remove Main Burner 1 2 3 Turn off all electricity and gas to unit Lower bottom pan to expose burner and manifold See Figure 1A Page 2 Disconnect pilot tubing and thermocouple lead or ignition cable at the combination gas control and ignition control Remove the two burner retaining pins holding the burner in place The burner can then be easily lowered from the unit In replacing the burner be certain that the slots at the front of the burner are located properly on their shoulder rivets and that the burner retaining pins are put back into their proper locations Figure 15 Air Shutter Adjustment Propane Gas MAIN BURNER ORIFICES MANIFOLD AIR SHUTTER Figure 18 Lifting Flame Condition Heater Parts from Greenhouses TROUBLESHOOTING GUIDE 2 Yellow Tipping Yellow tipping of a normally blue flame is caused by insuffici
18. be made after installation Adjust to have a soft steady flame 3 4 to 1 long and encompassing 3 8 1 2 of the tip of the thermocouple or flame sensing rod Normally this flame will produce satisfactory results To adjust flame use pilot adjustment screw on combination gas control for location see the combination gas control literature supplied with unit If the pilot flame is longer and larger than shown by Figure 7 it is possible that it may cause soot and or impinge on the heat exchanger causing burnout If the pilot flame is shorter than shown it may cause poor ignition and result in the controls not opening the combination gas control A short flame can be caused by a dirty pilot orifice Pilot flame condition should be observed periodically to assure trouble free operation Figure 8 Typical combination gas control Natural GAS CONTROL KNOB PRESSURE REGULATOR ELECTRICAL ADJUSTMENT SCREW CONNECTION UNDER CAP SCREW 23 7 TERMINALS 2n INLET PRESSURE OUTLET PRESSURE OUTLET INLET PILOT TUBING CONNECTION PILOT ADJUSTMENT SCREW RESET BUTTON Gas Flame Control Control of burner flames on units utilizing natural gas is achieved by moving the gas manifold to either increase or decrease primary combustion air Prior to flame adjustment operate unit with casing closed for about five minutes Operation can be viewed after loosening and pushing aside the blue gas designation disc on rear of unit
19. between mounting hole in unit casing and mounting hole on blower On the BAE 300 thru BAE 400 the distance is from rear mounting hole in casing to the mounting hole on blower Motor pulley is adjustable Standard Blower Motor Data BAE Standard Model Number Note Mounting heights and throws for BAE models without ductwork or nozzles and at a cfm yielding 55 temperature rise are the same as those listed for equivalent size PAE units BAE 75 BAE 100 BAE 125 BAE 145 Horsepower Amps 115 volt BAE 175 BAE 200 BAE 225 BAE 250 300 350 13 4 RPM 1725 Type D Data listed is for standard 115 volt 60 Hertz single phase motors Perm Split Cap 13 Heater Parts from ACF Greenhouses PERFORMANCE DATA NOZZLES A choice of four air discharge nozzles Z 90 VERTICAL accommodate various heat throw NOZZLE patterns illustrated Equipped with adjustable louver blades nozzles are fabricated from galvanized steel and are offered either unpainted or painted to match the finish of the blower unit heaters Nozzles are flanged for easy attachment over the air discharge opening of the blower unit heater H S gt ees Em uu j 5 WAY A NOZZLES H 40 SPLITTER NOZZLE a 5 5 4 Mounting Height Heat Throw Heat Spread in feet Model Number
20. fire unit until blower adjustment has been made or unit may cycle on limit overheat control 1 Shut off power before making blower speed adjustments Refer to Determining Blower Speed on page 7 and to Blower Drive Selection on pages 18 and 19 to determine proper blower RPM 2 Loosen belt and take belt off of motor sheave 3 Loosen set screw on outer side of adjustable motor sheave see Figure 6 To increase the speed of the blower turn outer side of motor sheave clockwise Retighten motor sheave set screw replace belt and retighten motor base Adjust motor adjusting screw such that there is 3 4 belt deflection when pressed with 5 pounds of force midway between the blower and motor sheaves see Figure Since the belt tension will decrease dramatically after an initial run in period it is necessary to periodically re check the tension to assure continual proper belt adjustment Check to make certain motor sheave and blower sheave are aligned Re align if necessary Re check blower speed after adjustment 9 Check motor amps Do not exceed amps shown on motor nameplate Slow blower if necessary 10 Check air temperature rise across unit Check temperature rise against values shown in Performance Tables on pages18 and19 to assure actual desired air flow is being achieved 4 To reduce the speed of the blower turn outer side of motor 11 If a
21. heat exchanger failure do not locate ANY gas fired unit in areas where chlorinated halogenated or acid vapors are present in the atmosphere Avoid installing units in extremely drafty locations Drafts can cause burner flames to impinge on heat exchangers which shortens life Maintain separation between units so discharge from one unit will not be directed into the inlet of another Do not locate units in tightly sealed rooms or small compartments without provision for adequate combustion air and venting Combustion air must have access to the confined space through a minimum of two permanent openings in the enclosure at least one 16 Modine unit heaters are designed for use in heating applications with ambient temperatures between 32 F and 90 F If an application exists where ambient temperatures can be expected to fall outside of this range contact factory for recommendations Provide clearance for opening hinged bottom for servicing See Figure 1A Do not set unit on its bottom To assure that flames do not impinge on heat exchanger surfaces the unit must be suspended in a vertical and level position Failure to suspend unit properly may shorten the life of the unit heater Do not lift unit heater by gas controls gas manifold or power venter Be sure no obstructions block air intake and discharge of unit heater Do not attach duct work air filters or polytubes to any propeller PAE model unit heaters
22. on pipe diameter 4 Limit length of horizontal runs to 75 of vertical height Install with a minimum upward slope from unit of 1 4 inch per foot and suspend securely from overhead structure at points no greater than 3 feet apart For best venting put as much vertical vent as close to the unit as possible Fasten individual lengths of vent together with at least three corrosion resistant sheet metal screws 5 Avoid venting through unheated space when possible When venting does pass through an unheated space Modine recommends the use of Type B double wall vent If single wall vent is used insulate vent runs greater than 5 feet to minimize condensation Use insulation that is noncombustible with a rating of not less than 350 Install a tee fitting at the low point of the vent system to provide a drip leg with a clean out cap as shown in Figure 3 The drip leg should be cleaned annually 6 Keep single wall vent pipe at least 6 inches from combustible material see page 2 section 12 for allowable reductions For double wall vent pipe maintain clearances listed on vent pipe Category and II units The minimum distance from combustible material is based on the combustible material surface not exceeding 160 F Clearance from the vent connector vent or top of unit may be required to be greater than the minimum clearance if heat damage other than fire such as material distortion or discoloration may occur 7 Where the vent passes
23. the rear or 6 inches beyond the end of the motor whichever is greater to provide ample air for combustion and for proper operation of fan 1 w D SKF Clearance at bottom should equal C dimen sion for each model number mi Nm L MIN DISTANCE TO WALL Dimensions inches PAE Do not use propeller units with duct work Dimension Model Number Symbol PAE 125 PAE 175 PAE 200 PAE 350 28 3 4 28 3 4 40 1 4 20 20 25 14 13 16 16 13 16 31 3 16 16 16 11 12 11 1 2 2 5 8 2 5 8 13 5 8 6 1 4 6 1 2 J 4 K Mounting 3 8 16 Holes Gas Connections X Lo LL EE Fan Diameter Approx Weight g Zixiomimiooj w Diameter of round vent pipe to fit oval opening Q For natural gas may vary depending on control availability PAE 30 through PAE 250 2 holes and the level hanging adjustment feature PAE 300 through PAE 400 4 holes Dimension equals overall plus 6 Performance PAE Standard Model Number PAE 30 PAE 50 PAE 75 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 350 PAE 400 Btu Hr Input 100 000 125 000 145 000 175 000 200 000 225 000 250 000 300 000 350 000 400 000 Btu Hr Output 80 000 100 000 116 000 140 000 160 000 180 000 200 000 240 000 280 000 320 000 Entering CFM 1440 1850 2400 2500
24. to operate and the required air flow must be known before the unit can be properly adjusted Any device added externally to the unit and which the air must pass through causes a resistance to air flow This resistance is called pressure loss The total of the pressure losses must be determined before adjusting the blower speed If Modine filters are used the expected pressure loss through the filters is included in the performance data on page 19 If Modine supplied discharge nozzles are used the expected pressure drop of the nozzles can be found footnoted at the bottom of page 14 If filters nozzles or ductwork are to be used with the unit and they are not supplied by Modine the design engineer or installing contractor must determine the pressure loss for the externally added devices or ductwork to arrive at the total external static pressure under which the unit is to operate Once the total static pressure and the required air flow are known the operating speed of the blower can be determined and the correct motor sheave adjustments made As an example let s say a model BAE 350 is to be used with a Modine supplied blower enclosure and Modine supplied filters attached to someone else s ductwork The unit is to move 6481 cfm or air flow against an external static pressure of 0 2 W C Entering the performance table on page 19 Blower models with filters for a BAE 350 at 6481 cfm and 0 2 W C static pressure it is seen that the unit
25. will require a 5 hp motor using a C116 drive and the motor sheave should be set at 5 turns open to achieve a blower speed of 1055 rpm You can see this example differs from similar conditions in paragraph 2 by the number of turns open and a higher rpm which is needed to overcome the added external static pressure from the filters To Install Figure 5 1 Remove and discard the motor tie down strap and the shipping block beneath the belt tension adjusting screw Not used on all models Figure 5 Blower Model Installation MOTOR MOUNTING BRACKET MOTOR SHEAVE MOVEABLE FACE TO OUTSIDE OIL CUPS UP MOTOR ADJUSTMENT SCREW TIE DOWN STRAP amp BLOCK FOR SHIPPING ONLY BLOWER SHEAVE 2 Adjust motor adjusting screw for a belt deflection of approximately 3 4 with five pounds of force applied midway between the sheaves refer to Figure 6a Since the belt tension will decrease dramatically after an initial run in period it is necessary to periodically re check the tension Excessive tension will cause bearing wear and noise 3 The blower bearings are lubricated for life however before initial unit operation the blower shaft should be lubricated at the bearings with SAE 20 oil This will reduce initial friction and start the plastic lubricant flowing 4 Make electrical connections according to the wiring diagram 5 Check rotation of the blower Motor should be in clockwise rotation when facin
26. 0 60 3 230 460 60 3 115 60 1 230 60 1 200 60 3 230 460 60 3 115 60 1 230 60 1 200 60 3 230 460 60 3 115 60 1 230 60 1 200 60 3 230 460 60 3 115 60 1 230 60 1 200 60 3 230 460 60 3 115 60 1 230 60 1 200 60 3 Shaded pole motors on models PAE 30 through PAE 125 permanent split capacitor motors on models PAE 145 through PAE 400 Whenever 230V 1 or 230V 3 power is used it is necessary to specify 230V 25V controls Whenever 460 36 power is used it is necessary to specify 230V 24V controls and in addition a 460V 230V 75VA step down transformer by others is required if the power exhauster accessory is used the step down transformer by others needs to be 250VA On 230V 3 or 460V 3 systems the motor starter coil voltage motor starter by others must be 230V For 200V 3 system the motor starter coil voltage motor starter by others must be 200V 3 BAE models split phase motors 1 4 3 4 hp capacitor start type motors 1 5 hp 1 4 5 hp motors 1725 rpm Units with 460V 3o power supply are not listed by C G A All motors used are produced rated and tested by reputable manufacturers in accordance with NEMA standards and carry the standard warranty of both the motor manufacturer and Modine All motors are totally enclosed and all single phase motors have built in thermal overload protection 25 Heater Parts from ACF Gre
27. 009 X ao noze Y 2 X 30 NOZZLE Y z 16 Heater Parts from ACF Greenhouses PERFORMANCE DATA HOODS Performance Data 30 60 and 90 Downward Deflector Hoods Blower Models Mounting Height to Bottom of Heater 30 Downward Hood For Blower Units 100 BAE 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 BAE 300 BAE 350 11 24 33 16 35 48 16 35 48 21 44 60 23 46 63 21 43 59 25 50 69 26 53 71 29 58 79 3061 83 36 71 97 36 71 97 15 34 46 15 34 46 20 43 59 21 46 62 20 42 58 24 50 68 25 52 70 28 57 78 29 60 82 35 71 96 35 70 96 14 32 44 12 29 41 14 32 44 12 29 41 19 42 57 20 44 60 17 40 55 19 43 59 18 41 56 17 39 54 22 49 66 21 47 65 23 51 69 22 49 68 34 70 95 33 69 94 26 56 77 25 55 75 28 59 81 27 58 80 34 70 95 33 69 94 10 26 36 10 26 36 16 38 52 17 41 56 16 37 51 20 45 62 21 48 66 24 54 74 26 57 78 32 68 93 31 68 93 14 35 49 16 38 53 14 35 49 14 34 48 1130 42 18 43 60 16 41 56 19 46 63 18 43 60 23 52 71 21 50 69 24 56 76 23 54 74 30 67 92 29 65 90 30 67 91 29 65 89 14 37 52 16 40 56 18 48 66 21 51 71 28 64 88 27 63 87 123143 10 29 42 13 35 50 26 61 85 24 59 82 17 44 62 20 49 68 15 40 56 17 45 63 26 62 85 25 59 82 11 32 46 14 39 56 23 57 79 23 56 78 Mounting Heigh
28. 20 44 61 16 38 52 20 44 61 21 47 64 12 31 43 10 27 38 10 27 37 18 42 58 15 36 49 18 42 58 19 45 62 7 20 29 7 20 29 17 40 56 15 37 52 13 33 45 10 27 38 16 40 55 15 37 51 18 43 59 16 40 55 12 32 45 12 32 45 14 36 51 Mounting Height to Bottom of Heater 9 27 39 Model PAE 100 PAE 125 PAE 250 PAE 300 PAE 350 PAE 400 XYZ XYZ XYZ XYZ XYZ XYZ Mounting Height to Bottom of Heater 90 Downward Hood For Propeller Units Model PAE 100 125 145 175 200 225 250 300 350 400 5 5 5 5 5 5 5 5 D Data Based on units fired at full rated input with an entering air temperature of 60 80 F Maximum mounting heights higher versus units without outlet devices NOTE X FEED FROM HEATER THROW FLOOR COVERAGE TO START OF FLOOR COVERAGE i Y FEET TO END OF a 30 DOWNTURN NOZZLE 0000000000 FLOOR COVERAGE RA 60 DOWNTURN NOZZLE mm m m Z FEET TO END OF eye HANEN THROW 125 iN 30 MOUNTING e 60 ML HEIGHT 1 st e ox eee A e t ecce 30 HOOD 60 HOOD 2 az 40000
29. 4a Check that manual valve on combination gas control is in ON position 4b Be sure pilot is lit correctly positioned and strong enough to ignite burner ports 4c Check wiring electrical power supply to combination gas control 4d If unit is equipped with an ECO energy cut off device located on rear panel of unit check fuse in ECO and make sure it has not blown and is operating correctly Caution The ECO fuse should blow only if excessive unit temperatures are experienced If fuse is blown make sure the cause of the unit overheating is found and corrected before replacing the fuse and placing the unit back into operation If the above does not correct the condition consult your local gas company or local Modine representative Intermittent Pilot Problem Symptoms and Diagnosis 1 Pilot will not light or stay lit POSSIBLE CAUSE POSSIBLE REMEDY 2 Pilot lights main burner will not light POSSIBLE CAUSE POSSIBLE REMEDY 2a Gas valve in off position 2b System in lock out mode 2c Cracked or broken sensor ceramic 2d Defective or loose connections to flame sensor or flame sensor lead 2e Incorrect gas pressure 2f Insufficient current signal from flame sensor 2g Incorrect or loose wiring 2h Poor ground to ignition controller 2i No power to ignition controller or gas valve 2j Loose limit control connections or defective limit 2k Defective or plugged gas valve r
30. 6 551 31 Part 5H70880A Rev AA July 1996 INSTALLATION AND SERVICE MANUAL A WARNING Improper installation adjustment alteration service or maintenance can cause property damage injury or death and could cause exposure to substances which have been determined by various state agencies to cause cancer birth defects or other reproductive harm Read the installation operating and maintenance instructions throroughly before installing or servicing this equipment FOR YOUR SAFETY The use and storage of gasoline or other flammable vapors and liquids in open containers in the vicinity of this appliance is hazardous To prevent premature heat exchanger failure do not locate ANY gas fired units in areas where chlorinated halogenated or acid vapors are present in the atmosphere gas fired unit heaters models PAE and BAE APPROVED All models approved for use in California by the CEC when equipped with IPI in New York by the MEA division and in Massachusetts Unit heater is certified for non residential applications Contents Pages Inspection on arrival 1 Installation including venting 2 8 Operation 0 00062 ee 9 10 Checking input rate 0 0 11 Dimensional data 12 amp 15 Performance data 13 14 amp 16 19 Se
31. AL INJURY OR DEATH 1 Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage All units must be wired strictly in accordance with wiring diagram furnished with the unit Turn off all gas before installing unit heaters Gas pressure to unit heater controls must never exceed 14 W C 1 2 psi When leak testing the gas supply piping system the unit and its combination gas control must be isolated during any pressure testing in excess of 14 W C 1 2 psi The unit should be isolated from the gas supply piping system by closing its field installed manual shut off valve Check gas inlet pressure at unit upstream from the combination gas control The inlet pressure should be 6 7 W C on natural gas or 12 14 W C on propane gas Purging of gas piping should be performed as described in ANSI Z223 1 Latest Edition or in Canada in CAN CGA B149 codes All units must be vented to the outside atmosphere Do not install in potentially explosive or flammable atmospheres laden with grain dust sawdust or similar air borne materials In such applications a blower type heater installed in a separate room with ducting including appropriate back flow prevention dampers to the dust laden room is recommended Installation of units in high humidity or salt water atmospheres will cause accelerated corrosion resulting in a reduction of the normal life span of the units To prevent premature
32. Kehoe Equipment Co Edmonton Alberta 403 420 0040 Summit Engineering Sales Calgary Alberta 403 250 9780 BRITISH COLUMBIA Dierks Equipment Sales Vancouver BC 604 872 7891 MANITOBA H F Clarke Ltd Winnipeg Manitoba 204 694 8637 NOVA SCOTIA acLeod and Grant Ltd Stellarton NS 902 752 5532 ONTARIO ichael Stuart Company Ltd Concord Ontario 905 738 6008 G P McEachern Ltd Thunder Bay Ontario 807 623 4951 QUEBEC G Mitchell Heating amp A C St Laurent Quebec 514 332 8929 SASKATCHEWAN Cypress Sales Regina Saskatchewan 306 757 5656 Cypress Sales Saskatoon Saskatchewan 306 242 3333 Parts Wholesalers CONNECTICUT E W Leonard Inc oodus CT 203 873 8691 COLORADO cCoy Sales Corp Englewood CO 303 762 8012 GEORGIA Herring Company Inc orcross GA 404 416 0044 ILLINOIS Heinlein Supply Chicago IL 312 774 8616 MARYLAND arva Sales Baltimore MD 410 945 0171 For service contact your local qualified installation and service contractor or appropriate utility company MASSACHUSETTS Emerson Swan Inc Randolph MA 617 986 2000 MICHIGAN Air One Company Oak Park MI 313 398 8700 Raley Brothers Grand Rapids MI 616 452 6043 MINNESOTA Walters Climate Inc Minneapolis MN 612 544 8626 NEVADA Best Supply Inc Las Vegas NV 702 474 4475 NEW JERSEY C R Hutcheon Inc Bloomfield NJ 201 743 9770
33. MINAL 7 N ROOF FLASHING 17777777777777777 use THIMBLE THROUGH CEILING jeu q 4 T J 10 DRIP LEG WITH UNT SLOPE ANTO CLEANOUT CAP THE FOOT SIZE ACCORDING TO EXPECTED SNOW DEPTH Heater Parts from ACF Greenhouses INSTALLATION Piping A CAUTION Gas pressure to unit heater controls must never exceed 14 W C 1 2 psi When leak testing the gas supply piping system the appliance and its combination gas control must be isolated during any pressure testing in excess of 14 W C 1 2 psi The appliance should be isolated from the gas supply piping system by closing its field installed manual shut off valve 1 Installation of piping must be in accordance with local codes and ANSI Z223 1 National Fuel Gas Code or CAN CGA B149 in Canada Do not use flexible connectors 2 Piping to units should conform with local and national requirements for type and volume and gas handled and pressure drop allowed in the line Refer to Table 4 to determine the cubic feet per hour cfh for the type of gas and size of unit to be installed Using this cfh value and the length of pipe necessary determine the pipe diameter from Table 1 Where several units are served by the same main the total capacity cfh and length of main must be considered Avoid pipe sizes smaller than 1 2 Table 1 allows for the usual number of fittings with a 0 3 W C pressure drop Where the gas supplied has a specific
34. NEW YORK ABCO Supply Hicksville NY 516 938 8400 H C Oswald New York NY 212 722 7000 OHIO Wolff Bros Sply Inc Medina OH 216 725 3451 Toledo Thermal Equip Co Toledo OH 419 475 7100 PENNSYLVANIA B J Terroni Co Inc Bensalem PA 215 639 3600 Myers Distributing Co Inc Duquesne PA 412 469 1010 TENNESSEE A T Distributors Memphis TN 901 278 7211 TEXAS K Sales Inc Dallas TX 214 484 8885 UTAH A A Maycock Company Salt Lake City UT 801 364 1926 VIRGINIA L A Prillaman Co Inc Ashland VA 804 798 1455 WASHINGTON Proctor Sales Inc Lynnwood WA 206 774 1441 WASHINGTON DC Marva Sales Lovettsville VA 540 882 3640 WISCONSIN C amp S Hydronics Inc Delafield WI 414 646 6325 Monine Modine Manufacturing Company 1996 Heating Division Modine Manufacturing Company 1221 Magnolia Avenue Buena Vista VA 24416 Telephone 540 261 2166 Fax 540 261 1563 6 96 30M Litho in USA Heater Parts from ACF Greenhouses
35. T 203 DIST Marv 873 8691 RICT OF COLUMBIA a Sales Inc Leesburg VA 540 338 2009 FLORIDA T H Brooks Apopka FL 407 886 8405 T H Brooks Tam 813 pa FL 622 7000 Aeromechanical Inc Gulf Breeze FL 904 932 2011 Power Conditioning Tampa FL 813 622 7000 GEORGIA Herring Company Inc Norcross GA 770 416 0044 IDAHO A A Maycock Salt Lake City UT 801 364 1926 ILLINOIS John East 309 A Sandberg Co oline IL 796 2371 Fleming Hanson Sales Downers Grove IL 708 829 4060 Burden Cooper Inc Rockford IL 815 633 6555 INDIANA Jay Kress Assoc India 317 napolis IN 251 2498 219 234 6005 IOWA Enquip Peterson Des Moines IA 515 266 0844 KANSAS Jorban Riscoe Assoc Kansas City KS 913 722 1244 Jorban Riscoe Assoc Wichita KS 316 687 3277 KENTUCKY Climate Conditioning Louisville KY 502 267 4696 LOUISIANA Schully Strawn Metairie LA 504 831 0000 Reed Mechanical Shreveport LA 318 865 3515 MAINE Emerson Swan Inc Randolph MA 617 986 2000 MARYLAND Marva Sales Inc Baltimore MD 21217 410 945 0171 MASSACHUSETTS Emerson Swan Inc Randolph MA 617 986 2000 MICHIGAN Raley Brothers Grand Rapids MI 616 742 0150 Air One Co Oak Park MI 810 398 8700 Witheridge Co Saginaw MI 517 792 2598 MINNESOTA Walters Climate Inc Minneapolis MN
36. a modulating combination gas control and an ignition control continuous retry Pilot is automatically 200 230V lit whenever there is power to the unit Modulation range is between 50 and 100 fire gas control 115V shuts off below 50 fire Available on BAE models only 200 230V Two Stage Intermittent Pilot Ignition 100 Shut Off with Continuous Retry Utilizes a two stage 115V combination gas control which fires at 50 or 100 of full rated input and an ignition control 200 230V continuous retry Pilot is automatically lit only on call for heat Available on PAE BAE models only 115V natural natural propane propane natural natural propane propane natural natural propane propane natural natural propane 200 230V propane D Models BAE 50 thru BAE 100 with two stage or modulating gas controls require a Category ll vent system For units with control systems having fan timer fan starts 30 seconds max after ignition and shuts down approximately 60 seconds after main burner shuts down Available on units with up to 1 hp motors or 14 amps 115V A C Contact factory for applications with units having motors with horsepower ratings above 1 hp 14 amps 115V A C Whenever 230V 1o or 230V 3 power is used it is necessary to specify 230V 25V controls Whenever 460V 3o power is used it is necessary to specify 230V 25V controls and in addition a 460V 230V 75VA step down transformer b
37. bient temperatures can be expected to fall outside of this range contact factory for recommendations Combustion Air Requirements Units installed in tightly sealed buildings or confined spaces should be provided with two permanent openings one near the top of the enclosure and one near the bottom Each opening should have a free area of not less than one square inch per 1 000 BTU per hour of the total input rating of all units in the enclosure freely communicating with interior areas having in turn adequate infiltration from the outside Unit Suspension Be sure the means of suspension is adequate to support the weight of the unit See page 12 for unit weights For proper operation the unit must be installed in a level horizontal position Clearances to combustibles as specified above must be strictly maintained Do not install standard unit heaters above the maximum mounting height shown in Table 7 on page 13 or below seven feet from the bottom of the unit to the floor A CAUTION For all sizes minimum clearance to combustibles from the bottom is 12 and from the sides 18 for PAE sizes 30 100 from the top is 1 and from the vent connector 2 for PAE sizes 125 300 from the top is 2 and from the vent connector 3 for PAE sizes 350 amp 400 from the top is 3 and from the vent connector 6 and for all BAE sizes from the top and vent connector is 6 Allow at least 12 at the rear or 6 beyond the end of the motor wh
38. ceramic blown controller fuse or brittle cracked or loose high tension cable Check power exhauster pressure switch Replace if defective Check milli ampls of sensor Tighten loose connections Clean sensor with steel wool Replace flame sensor if necessary Tighten connections Replace Check grounding means Check transformer voltage on secondary side for 25v Correct or replace pilot Clean or replace i Correct or replace pilot line j Check pilot flame and adjust per valve manufacturer s recommendations Reposition Replace 3a Flame sensing circuit failure 3b Soot on sensing rod 3c Blockage in heat exchanger 3d Blockage in main burner orifice 3b 3c 3d Check flame sensing rod sensor ceramic sensor lead and connections for damage or loss of continuity Replace defective elements Clean off soot and adjust pilot to smaller size Clean heat exchanger Determine cause and correct Clean or replace orifice 4 Burner fails to shut off after thermostat is satisfied POSSIBLE CAUSE POSSIBLE REMEDY 4a Faulty thermostat or improper heat anticipator setting 4b Defective ignition controller 4c Defective gas control 4a 4b 4c Check thermostat and anticipator setting Replace if defective Replace Replace If a qualified service person cannot solve the problem consult your local gas company or Modine repr
39. corrosive atmosphere To prevent premature heat exchanger failure do not locate ANY gas fired unit in areas where chlorinated halogenated or acid vapors are present in the atmosphere In locating units consider general space heating requirements availability of gas and proximity to vent locations Unit heaters should be located so heated air streams wipe exposed walls without blowing directly against them In multiple unit installations arrange units so that each supports the air stream from another setting up circulatory air movement in the area but maintain separation between units so discharge from one unit will not be directed into the inlet of another In buildings exposed to prevailing winds a large portion of the heated air should be directed along the windward wall Avoid interference of air streams as much as possible Mounting height measured from bottom of unit at which unit heaters are installed is critical Maximum mounting heights are listed in Table 7 on page 18 Alternate mounting heights for units with deflector hoods or nozzles are shown on pages 14 16 and 17 The maximum mounting height for any unit is that height above which the unit will not deliver heated air to the floor The maximum mounting heights must not be exceeded in order to assure maximum comfort Modine unit heaters are designed for use in heating applications with ambient temperatures between 32 F and 90 F If an application exists where am
40. described Do not install units below 7 feet measured from the bottom of the unit to the floor Heater Parts from ACF Greenhouses INSTALLATION In the U S the installation of these units must comply with the National Fuel Gas Code ANSI Z223 1 latest edition also known as NFPA 54 and other applicable local building codes In Canada the installation of these units must comply with local plumbing or waste water codes and other applicable codes and with the current code CAN CGA B149 1 Installation Code for Natural Gas Burning Appliances and Equipment CAN CGA B 149 2 Installation Code for Propane Burning Appliances and Equipment 1 Alliinstallation and service of these units must be performed by a qualified installation and service agency only as defined in ANSI Z223 1 latest edition or in Canada by a licensed gas fitter 2 This unit is certified by A G A and by C G A with the controls furnished For replacement parts submit the complete model and serial numbers shown on rating plate on the unit Modine reserves the right to substitute other authorized controls as replacements 3 Unit is balanced for correct performance Do not alter fan or operate motors at reduced speed Information on controls is supplied separately 5 Modine unit heaters use the same burner for natural and propane gases Locating Unit Heaters A CAUTION Units must not be installed in potentially explosive flammable or
41. djustments are required recheck motor amps after final sheave counterclockwise blower speed adjustment Figure 6 Figure 6a Motor Sheave Adjustment Belt Tension Adjustment SET SCREW TOWARD MOTOR 484 3 4 DEFLECTION N WITH 54 FORCE ADJUSTABLE HALF OF SHEAVE 8 Heater Parts from ACF Greenhouses OPERATION A CAUTION Figure 7 Correct Pilot Flame Pilot Flame Adjustment Start up and adjustment procedures should be performed by a qualified serviceman Check the gas inlet pressure at the unit upstream of the combination gas control The inlet pressure should be 6 7 W C on natural gas or 12 14 W C on propane If inlet pressure is too high install an additional pressure regulator upstream of the combination gas control The pilot flame must be adjusted as described below Purging of air from gas lines piping and lighting the pilot should be performed as described in ANSI Z223 1 latest edition National Fuel Gas Code CAN CGA B149 in Canada Be sure no obstructions block air intake and discharge of unit heater Prior to Operation Although this unit has been assembled and fire tested at the factory the following pre operational procedures should be performed to assure proper on site operation 1 Turn off all electric power to the unit 2 Check burner to insure proper alignment 3 Check fan clearance Fan should not contact casing when spun by hand 4 Check all electrical con
42. e appliance and its combination gas control must be isolated during any pressure testing in excess of 14 W C 1 2 psi The appliance should be isolated from the gas supply piping system by closing its field installed manual shutoff valve Pipe in Ft 45 114 142 2 3 Table 2 Figure 4 Specific Gravity Conversion Factors Multiplying factors to be sued with table 1 when the specific gravity of gas is other than 0 60 NATURAL GAS Specific PROPANE GAS Specific 1 60 Recommended Piping e to Controls GAS SUPPLY LINE Na C MANUAL GROUND SHUT OFF JOINT VALVE UNION GAS bord SUPPLY LINE t 1 Nae 4 4 7 JT T ay T N laic indc irs To CONTROLS PLUGGED A 1 8 NPT TEST MIN GAGE CONNECTION SEDIMENT TRAP 5 Heater Parts from ACF Greenhouses INSTALLATION Wiring A CAUTION Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage ALL UNITS MUST BE WIRED STRICTLY IN ACCORDANCE WITH WIRING DIAGRAM FURNISHED WITH UNIT ANY WIRING DIFFERENT FROM WIRING DIAGRAM MAY BE HAZARDOUS TO PERSONS AND PROPERTY Any damage to or failure of Modine units caused by incorrect wiring of the units is not covered by MODINE S STANDARD WARRANTY see Back Cover All field installed wiring must be d
43. e 9 for pilot flame adjustment Be sure thermocouple contact point is clean If problem persists replace thermocouple If the above steps do not correct the condition consult your local qualified installation and service contractor or appropriate utility company 2 If standing pilot does not stay lit POSSIBLE CAUSES AND REMEDIES Check inlet pressure with all units operating making certain that there is proper pressure Check pipe or tubing size to unit See Table 1 Be sure all pilot connections are tight Check for excessive drafts Check for clogged pilot orifice or pilot line Check for leaks around pilot fittings If leaks cause flame impingement on thermocouple lead thermocouple may become inoperative 23 Heater Parts from ACF Greenhouses TROUBLESHOOTING GUIDE 3 Effect of pilot operation on safety controls POSSIBLE CAUSES AND REMEDIES 3a A short pilot flame may cause poor ignition and result in the controls not opening the combination gas control or reduce heat on thermocouple to the point where the automatic controls become inoperative thereby shutting off gas supply to main burners This may result from a plugged orifice Check electrical connection from the thermocouple element to the safety valve to assure good electrical contact Also check location of pilot flame in relation to thermocouple element 4 If main burners do not light POSSIBLE CAUSES AND REMEDIES
44. egulator 21 Defective thermostat or thermostat out of calibration 2m Thermostat heat anticipator incorrectly set 2n Defective ignition controller 2p Blocked vent safety switch tripped 3 Burner shuts down before POSSIBLE CAUSE Turn to on position Reset system Replace sensor Correct or replace Check and adjsut if necessary to manufacturer s recommendations Check current according to manufacturer s recommendations and replace if necessary Check wiring Check grounding means i Check voltage to controller and gas valve j Check connections Replace limit control if necessary Inspect gas valve regulator Replace if necessary Calibrate thermostat or replace if necessary Check anticipator setting and correct if necessary Replace Refer to page 20 for instructions thermostat is satisfied POSSIBLE REMEDY 1a No spark at ignitor Dirty or defective flame sensor or loose connections to flame sensor Pilot valve electrical connections loose Defective pilot valve Poor ground connections No power from control transformer Spark not located in pilot gas stream Dirty or plugged pilot orifice i Pilot line kinked or obstructed j Pilot flame too low Flame sensor out of position Defective ignition controller 24 Check connections Check for proper spark gap cracked or broken electrode
45. enhouses MOTOR DATA Motor Data and Total Unit Power Requirements Blower BAE Models Voltage 115 60 1 230 601 200 60 3 230 460 60 3 Mtr Total Mtr Mtr Total Rpm Amps Rpm Amps Blower Drive Numbers Blower Sheave Motor Sheave Blower Sheave Mtr Total Rpm Amps 1 4 0 7 1 6 0 8 1 6 0 8 1 8 0 9 2 6 1 3 2 8 1 4 3 0 1 5 3 2 1 6 3 8 1 9 4 0 2 0 5 2 2 6 5 4 2 7 6 6 3 3 6 8 3 4 8 8 4 4 9 0 4 5 13 2 6 6 13 4 6 7 Motor Sheave Belt No Max Belt No Browning Pitch Dia Pitch Dia Bore wo RATING PLATE IDENTIFICATION Browning Pitch Dia Max Pitch Dia Bore A MODINE MODEL IDENTIFICATION PLATE POWER CODE CONTROL CODE PAE SERIAL NUMBER MODEL NUMBER Model Number Designations 145 A 01 08 01121010692 PD150AE 01 30 PAE Propeller Control Code Type 08 115v 25v intermittent pilot ignition non 100 shut off natural gas 09 230v 25v intermittent pilot ignition non 100 shut off natural gas etc Power Code 01 Complete Power Code descriptions 02 shown on pages 18 and 19 of this manual etc Ignition Type Standing Pilot G Intermittent Pilot K Intermittent Pilot Unit BAE Blower z Unit Serial Number Designations 01 12 101 10 95
46. ent primary air and indicated incomplete combustion producing carbon monoxide aldehydes and free carbon soot A dirty orifice or one that is out of line can also reduce primary air and cause yellow tipping Check orifice clean realign or replace if necessary With propane gas some yellow tipping is always present but is not objectionable 3 Flashback Flashback occurs when air gas mixture ignites inside the burner to burn near the orifice Flashback on ignition or during burner operation usually can be eliminated by reducing primary air The burner may also be operating below its rated capacity Check input rate and adjust to correct value by increasing orifice size or manifold gas pressure 4 Wavering Flames Drafts across burners may cause flames to waver or appear unstable Wavering flames can lead to incomplete combustion if flames impinge on cool surfaces Wavering can be caused by air drafts into the burner compartment or by misalignment of the burner Draft blown flames may indicate a cracked heat exchanger Figure 17 Wavering Flame or Misalignment GOOD BAD ay e 5 Floating Flames Floating flames are long do not have well defined cones roll around in the combustion chamber sometimes completely off the ports Usually an aldehyde odor is present to indicate incomplete combustion If combustion air supply is reduced too far burner flames will float Often the pilot flame near the port smothers and goes ou
47. esentative When servicing repairing or replacing parts on these units always give the complete Model Number which includes power code and control code and Serial Number from the unit rating plate See page 28 for Model Number and Serial Number Designations A CAUTION Do not attempt to reuse ignition controllers which have been wet Replace defective controller Heater Parts from ACF Greenhouses MOTOR DATA Power Code Description Propeller PAE Models 2 Electric 30 PAE 50 PAE 75 PAE 100 125 PAE 145 PAE 175 200 PAE 225 PAE 250 PAE 300 350 400 Code Power Horsepower 01 115 60 1 02 230 60 1 04 200 60 3 05 230 460 60 3 1 3 1 3 3 4 Voltage 115 60 1 230 60 1 200 60 3 230 460 60 3 Mtr Total Mtr Total Mtr Total HP Rpm Amps Amps Amps Power Code Description Blower BAE Models 2 Electric BAE 50 BAE 75 BAE 125 BAE 145 BAE 175 BAE 200 BAE 250 BAE 300 BAE 350 BAE 400 Power Drive HP Drive HP Drive HP Drive HP Drive Drive HP Drive HP Drive HP Drive Drive 115 60 1 230 60 1 200 60 3 230 460 60 3 115 60 1 C109 1 1 2 230 60 1 C109 1 1 2 200 60 3 C109 1 1 2 230 460 60 3 C109 1 1 2 115 60 1 C105 1 1 2 230 60 1 C105 1 1 2 200 60 3 C105 1 1 2 230 460 60 3 C105 1 1 2 115 60 1 230 60 1 200 60 3 230 460 60 3 115 60 1 230 60 1 20
48. f the motor whichever is greater to provide ample air for combustion and for proper operation of fan Clearance at bottom should equal C dimension for each 6c F 4 N model number M APPROX MIN DISTANCE TO WALL gt m ENCLOSURE OPTIONAL BLOWER FILTER RACK OPTIONAL Dimensions inches BAE Dimension Model Number Symbol 17 1 4 19 1 4 BAE 175 BAE 200 33 5 8 28 3 4 28 3 4 40 1 4 20 20 25 14 13 16 16 13 16 31 3 16 gBizzrlo nmoo o Jo 260 Gas Connections w X EE L w Blwr Encl amp Rk L w o Blwr Encl amp Filt Rk M NO Q Blower Encl Ht 17 1 8 V Blower Encl Width 17 1 2 R Inlet Duct Height 15 3 4 T Inlet Duct Width 16 Center to Center Blower Mtg Holes S 10 15 16 Std Mtr Pulley Dia Std Blower Pulley Dia Blower Wheel Diameter Approx Weight D Diameter of round vent pipe to fit oval opening Fornatural gas may vary depending on control availability 3 This is an approximate dimension for standard motors allow 3 for sheave and optional motors 50 thru BAE 250 4 holes 2 on blower and 2 on unit BAE300 thru 400 6 holes 2 on blower and 4 on unit 5 Distance
49. f the unit and two holes in the blower support bracket The PAE 300 PAE 350 and PAE 400 have four tapped holes in the top of the unit and two in the blower support bracket for mounting To assure that flames are directed into the center of heat exchanger tubes unit must be supported in a vertical position with suspension hangers UP Check with a level This is important to the operation and life of unit Note Pipe hanger adapter kits as shown in Figure 2 are available as accessories from Modine The hardware allows for pipe caps to be secured into the top of the unit heater with machine screws as illustrated machine screws are 3 8 16 x 1 75 UNC 2A THD The pipe caps can then accommodate 3 4 NPT pipe for mounting Three different kits are available with either 2 4 or 6 adapters per kit See price sheet to determine proper kit Figure 2 Adjustable Mounting Brackets Suspension Methods REMOVE SIDE PANELS TO ADJUST MOUNTING BRACKETS SUSPENSION WITH PIPE ADAPTER KIT 3 Heater Parts from ACF Greenhouses INSTALLATION A CAUTION Gas Unit Heaters must be vented do not operate unvented A built in draft hood diverter is provided additional external draft hoods diverters are not required or permitted Gas fired heating equipment that has been improperly vented or which experiences a blocked vent condition may have flue gases accidentally spilled into t
50. g motor pulley If rotation is incorrect correction should be made by interchanging wiring within the motor See wiring diagram on the motor 6 The actual current draw of the motor should be determined Under no condition should the current draw exceed that shown on the motor rating plate 7 the installers responsibility to adjust the motor sheave to provide the specified blower performance as listed on pages 18 amp 19 for blower settings different from the factory set performance The drive number on the unit may be identified by referring to the Power Code number on the serial plate of the unit see page 28 for model number nomenclature and matching that number with those shown on page 25 From the listing the drive number can be determined 8 Blower sheave and motor sheave should be measured to assure correct drive is on unit Refer to page 26 for drive Sizes 7 Heater Parts from ACF Greenhouses INSTALLATION Blower Adjustments Following electrical connections check blower rotation to assure blow through heating If necessary interchange wiring to reverse blower rotation Start fan motor and check blower sheave RPM with a hand held or strobe type tachometer RPM should check out with the speeds listed in Performance Data shown on pages 18 and 19 A single speed motor with an adjustable motor sheave is supplied with these units If blower fan speed changes are required adjust motor sheave as follows NOTE Do not
51. gravity other than 0 60 apply the multiplying factor as given in Table 2 3 After threading and reaming the ends inspect piping and remove loose dirt and chips Table 1 Gas Pipe Capacities In Cu Ft per Hour with Pressure Drop pf 0 3 in W C with Specific Gravity 0 60 Diameter of Pipe Inches Length of 10 11 12 Support piping so that no strains are imposed on unit or controls Use two wrenches when connecting piping to unit controls Provide a sediment trap before each unit and in the line where low spots cannot be avoided See Figure 4 Take off to unit should come from top or side of main to avoid trapping condensate Piping subject to wide temperature variations should be insulated Pitch piping up toward unit at least 1 4 per 15 of horizontal run Compounds used on threaded joints of gas piping must be resistant to action of liquefied petroleum gases Purge air before lighting unit by disconnecting pilot tubing at combination gas control In no case should line be purged into heat exchanger After installation check system for gas leaks using a soap solution Install a ground joint union and a manual shut off valve immediately upstream of the unit including a 1 8 NPT plugged tapping accessible for test gage connection See Figure 4 Allow at least 5 feet of piping between any high pressure regulator and unit control string When leak testing the gas supply piping system th
52. he heated space See page 20 for specific information about the blocked vent safety switch supplied on the unit Installation must conform with local building codes or in the absence of local codes with Part 7 Venting of Equipment of the National Fuel Gas Code ANSI Z223 1 NFPA 54 Latest Edition In Canada installation must be in accordance with CAN CGA B149 1 for natural gas units and CAN CGA B149 2 for propane units NOTE A vent is the vertical passageway used to convey flue gases from the unit or the vent connector to the outside atmosphere A vent connector is the pipe which connects the unit to a vent or chimney Venting Instructions 1 Using Table 1 determine the venting system category of the unit to be installed 2 Using Table 2 determine the venting requirements for the category determined above The installation of a Category Il unit must conform to these requirements detailed in following sections in addition to those listed below 3 Select size of vent pipe to fit vent pipe connection at rear of appliance see Page 12 Dimension J Exception All PAE BAE 50 models with two stage or modulating controls must use a 5 inch vent Do not use a vent pipe smaller than the vent pipe connection on the unit Vent pipe should be galvanized steel or other suitable corrosion resistant material Follow the National Fuel Gas Code for minimum thicknesses of vent material minimum thicknesses for vent connectors vary depending
53. ichever is greater to provide ample air for combustion and for proper operation of fan Provide clearance for opening of the hinged bottom for servicing SEE FIGURE 1A On all propeller units except the PAE 300 PAE 350 and PAE 400 two tapped holes 3 8 16 are located in the top of the unit to receive ceiling hangers Units with two point suspension models PAE30 through PAE250 incorporate a level hanging feature Depending on what options and accessories are being used the heater may not hang level as received from the factory Do not hang heaters with deflector hoods until referring to the installation manual for deflector hoods and making the recommended preliminary adjustments on the heater These preliminary adjustments need to be made with the heater resting on the floor PAE30 through PAE250 units without deflector hoods that do not hang level after being installed can be corrected in place Simply remove both outer side panels screws to remove are on back flange of side panel and you will see the adjustable mounting brackets Fig 2 Loosen the set screws holding the mounting brackets in place and using a rubber mallet or something similar tap the heater into a position where it does hang level Re tighten set screws and replace the outer side panels The PAE 300 PAE 350 and PAE 400 have four mounting holes On all blower units except the PAE 300 PAE 350 and PAE 400 two tapped holes are provided in the top o
54. iction in ducts and for dirty filters 6 Check to make sure the venting system is not damaged or blocked Also check to be sure unit is venting normally and that there is not negative pressure in the building adversely Figure 13a BVSS Troubleshooting Flow Chart Is vent blocked or restricted S NO Is there spillage after 5 minutes see note 1 YE NO Is there a negative pressure in building see note 2 Replace blocked vent switch Does switch still trip NO YES NO YES Can negative pressure Is vent in compliance be corrected with NFGC YES NO Correct Install negative power vent pressure accessory Is unit overfired Reduce input Can one or more of the following be done Lengthen vertical vent run Insulate vent Use larger diameter vent Use less restrictive weather cap Note 1 To determine spillage place lit match stick 6 8 match stick if possible 2 3 into diverter relief opening and determine direction of the flame or direction of smoke if flame goes out If flame or smoke comes back at you there is accessory spillage The flame or smoke should be pulled in One indication of negative pressure is Install power that outside doors tend to swing toward Er Essor OK inside of building accessory 21 Heater Parts from ACF Greenhouses SERVICE INSTRUCTIONS GENERAL ONLY PEOPLE TRAINED AND FAMILIAR WITH THE OPERATION OF UNIT HEATERS AND THEIR CONTROLS SHOULD SERVICE THIS UNIT Genera
55. l Maintenance 1 Service air moving components annually a On propeller units this includes checking motor for lubrication if motor is not the permanently lubricated type and check fan for fit on motor shaft and for damage to blades b On blower units this should include 1 Checking motor and blower bearings for lubrication 2 Checking belt and sheaves for proper alignment and adjustment 3 Checking cleanliness of blower wheel and filters 2 Keep unit free from dust dirt grease and foreign matter paying particular attention to a Combustion air inlets b Burner ports pilot burner and main burner orifices avoid use of hard sharp instruments capable of damaging surfaces for cleaning these ports If air pressure is abailable use air hose to blow dirt and other foreign matter from within the burner Also main burner orifices should be checked for blockage due to spider Webs etc Troubleshooting Guide Figure 14 Manifold Adjustment Natural Gas MANIFOLD MAIN BURNER ORIFICES MANIFOLD MOUNTING SCREW AND PIN Combustion Problem Symptoms and Diagnosis To realize full gas heating value requires periodic inspections with proper combustion control corrections as outlined and illustrated here 1 Lifting Flames Lifting flames rise unevenly above the burner port and may occur on few or all the ports Sometimes the flames drop and lift intermittently Lifting can be eliminated by reducing primary
56. lame Control for adjusting the manifold Checking Input Rate A CAUTION Check the gas inlet pressure at the unit upstream of the combination gas control The inlet pressure should be 6 7 W C on natural gas or 12 14 W C on propane If inlet pressure is too high install an additional pressure regulator upstream of the combination gas control Important Inlet pressure and manifold pressure must be checked with unit in operation when making final adjustments Input Adjustments The gas pressure regulator part of the combination gas control is adjusted at the factory for average gas conditions It is important that gas be supplied to the heater in accordance with the input rating stamped on the serial plate Actual input should be checked and necessary adjustments made after the heater is installed Over firing a result of too high an input reduces the life of the unit and increases maintenance Under no circumstances should the input exceed that shown on the rating plate Input can be determined by the meter timing method provided other gas equipment connected to the meter is off during the test If this is not possible use the pressure method A Meter Timing Method 1 Shut off all other gas burning equipment including other pilot lights served by the gas meter 2 Start the heater and determine the number of seconds it takes to consume 1 cu ft of gas Two basic formulas are useful F1 3600 C T F2
57. nections to be sure they are secure 5 If you are not familiar with the unit s controls i e combination gas control refer to the control manufacturer s literature supplied with the unit 6 Check that all horizontal deflector blades are open a minimum of 30 as measured from vertical Lighting Instructions also on unit For Units with Standing Pilot 1 Set thermostat to lowest setting Move gas control knob or lever to off and wait 5 minutes 2 Move gas control knob to PILOT or move gas control lever to SET and depress reset button while lighting the pilot and hold for 1 minute after pilot is lit 3 Move gas control knob or lever to ON 4 Set thermostat to desired setting For Units with Intermittent Pilot 1 Set thermostat to lowest setting Move gas control knob or lever to off and wait 5 minutes 2 Move gas control knob or lever to ON 3 Set thermostat to desired setting pilot and main burner will light automatically when thermostat calls for heat Shut Down Instructions Turn off power and close manual gas valve After Initial Start Up 1 Check pilot flame adjustment as discussed below 2 Check gas piping for leaks with a soap bubble solution to insure safe operation 3 Check gas input rate to assure proper gas flow and pressure The pilot burner is orificed to burn properly with an inlet pressure of 6 7 W C on natural gas and 12 14 W C on propane gas but final adjustment must
58. o check to be sure unit is venting normally and that there is not negative pressure in the building adversely affecting draft 7 Clean heat exchanger tubes inside and out if necessary 8 If items 1 7 do not solve the problem check limit control and replace if necessary The control is accessible by removing 20 the left outer side panel held in place by screws at the rear of the unit IMPORTANT NOTE The limit control overheat switch on this unit heater will shut off the gas should excessive discharge temperatures occur Do not attempt to control the fan with the limit control Any change in wiring to attempt to control the fan with the limit control will result in hazardous conditions and void the warranty Blocked Vent Safety Switch BVSS A BVSS is supplied on all gravity vented unit heaters and is designed to prevent operation of the main burner if the venting system is blocked If the BVSS has tripped turn off the gas and electric supply to the unit heater Check the entire vent system connected to the unit heater for blockage or damage In the case of a restricted vent there may not be enough dilution air to carry away the heat radiating off the heat exchanger top and surrounding area the BVSS may exceed the temperature setting and trip Spillage will also cause the BVSS to trip If spillage exceeds five minutes even though the vent is in compliance with the NFGC some type of change must be made in the vent s
59. om the time the thermostat called for heat the fan motor will start On systems utilizing control codes 08 and 09 the ignition control will attempt to light the pilot once the system is turned on If the pilot is not sensed for any reason the spark will continue indefinitely until the pilot lame is sensed or until power is interrupted to the system Service Checklist On systems utilizing control codes 30 31 85 or 86 the sequence is similar except that the system will attempt to light the pilot for 70 seconds once there is a demand for heat If the pilot is not sensed for any reason the ignition control will wait for a predetermined time with the combination gas control closed and no spark After the predetermined time lapses the cycle will begin again The time that lapses between cycles is at pre programmed intervals approximately 6 minutes This will continue indefinitely until the pilot flame is sensed or until power is interrupted to the system When the thermostat has been satisfied power is turned off to the ignition control and the combination gas control so both the main gas and pilot gas are turned off The fan will continue to operate for 45 to 75 seconds to allow the heat exchanger to cool down Two Stage Control Systems The thermostat will start the unit with the combination gas control in the first stage 5096 of normal input If the thermostat senses a further drop in temperature the second stage 10095 of normal in
60. one in accordance with the National Electrical Code ANSI NFPA 70 Latest Edition or Canadian Electrical Code CSA C22 1 Part 1 or local codes Unit must be electrically grounded according to these codes See wiring diagram shipped with unit For optional wiring diagrams see Bulletin 6 443 The power to these unit heaters should be protected with a circuit breaker Units for use with single phase electric power should be provided with a manual motor starter having properly sized overload protection Units for use with three phase electric power must be provided with a motor starter having properly sized overload protection Location of thermostat should be determined by heating requirements and be mounted on an inside wall about 5 above floor level where it will not be affected by heat from the unit or other sources or drafts from frequently opened doors See instructions packed with thermostat Installation of Blower Models BAE UNITS A CAUTION Proper air flow and distribution across the heat exchanger must be provided to prevent early failure of the blower unit heater Attachment of Field Installed Ductwork Blower dels BAE Models Only A CAUTION Do not attempt to attach ductwork of any kind to propeller PAE models Burned out heat exchanger as well as shorter equipment life will result from not providing uniform air distribution When installing heater always follow good duct design practices for even dist
61. placement parts A complete replacement parts list may be obtained by contacting Modine Manufacturing Company Refer to the rating plate on the unit for complete unit model number serial number and company address Any substitution of parts or controls not approved by Modine will be at owners risk Figure 1A Hinged Bottom for Burner Service See Dimension C Table 6 page 12 near the bottom They should provide a free area of one square inch per 1000 BTU per hour input rating of the unit with a minimum of 100 square inches for each opening whichever is greater Do not install unit outdoors For all sizes minimum clearance to combustibles from the bottom is 12 inches and from the sides 18 inches for sizes 30 100 from the top is 1 inch and from the vent connector 2 inches for sizes 125 300 from the top is 2 inches and from the vent connector 3 inches and for sizes 350 amp 400 from the top is 3 inches and from the vent connector 6 inches Allow at least 6 clearance at the sides and 12 clearance at rear or 6 beyond end of motor at rear of unit whichever is greater to provide ample air for combustion and proper operation of fan The minimum distance from combustible materials based on the combustible material surface not exceeding 160 F Clearance from the top of the unit may be required to be greater than 6 if heat damage other than fire may occur to materials above the unit heater at the temperature
62. put of the combination gas control will be energized When the thermostat senses an increase in temperature the combination gas control will be returned to the first stage operation Mechanical Modulation Systems When power is turned on the pilot is automatically lit When the sensing bulb attached to the combination gas control senses a drop in temperature the valve will open at 5096 of normal input If the temperature drops further the valve will open further As the temperature rises the valve will return to 50 of normal input If the temperature rises further the valve will close Date Intalled Serviced by amp Serial No Date Serviced Model No Serviced by amp Power Code Date Serviced Control Code 27 Heater Parts from ACF Greenhouses For local parts and service assistance contact one of the following Sales Hydronic amp Steam South Bend IN ALABAMA Watts Engr Sales Birmi 205 ngham AL 871 4673 ALASKA Proc or Sales Inc Anchorage AK 907 562 2608 ARIZONA Climatec Inc Phoe 602 nix AZ 944 3330 ARKANSAS John Lynn Co Inc North Little Rock AR 501 CALI 771 4343 FORNIA Specialties LaHabra CA 90631 714 Envir 738 7711 Indus Prod Mountain View CA 415 964 6161 COLORADO McCoy Sales Corp Englewood CO 303 762 8012 CONNECTICUT E W Leonard Inc Moodus C
63. ribution of the air across the heat exchanger Recommended layouts are shown below When installing blower units with ductwork the following must be done 1 Provide uniform air distribution over the heat exchanger Use turning vanes where required See figures below 2 Provide removable access panels in the ductwork on the downstream side of the unit heater These openings should be large enough to view smoke or reflect light inside the casing to indicate leaks in the heat exchanger and to check for hot spots on exchanger due to poor air distribution or lack of sufficient air 3 If ductwork is connected to the rear of the unit use Modine blower enclosure kit or if using field designed enclosure maintain dimensions of blower enclosure as shown on page 12 A CAUTION Check for red heat exchanger tubes If bottom of tubes become red while blower unit is in operation check for proper air volume and air distribution Adjust blower speed or correct discharge duct design to correct problem Recommended Installations A TURNING 3 MAX VANES x TURNING VANES BAFFLE BAFFLE SIDE VIEW Dimension B Should Never Be Less than 1 2 of A TURNING VANES SIDE VIEW SIDE VIEW TOP VIEW Heater Parts from ACF Greenhouses INSTALLATION Installation of Blower Models BAE UNITS Determining Blower Speed The drive assembly and motor on all gas fired blower unit heaters are factory assembled
64. rvice instructions safety devices 20 21 Service instructions general 22 Troubleshooting 0000 cece eee eee 21 24 Motor data a glee Po ee ARR E n Rein 25 26 Control options 0 000 lee 27 Model identification 28 Warranty cee ae arahina cee Back cover FOR YOUR SAFETY If you smell gas 1 Open windows 2 Don t touch electrical switches 3 Extinguish any open flame 4 Immediately call your gas supplier THIS MANUAL IS THE PROPERTY OF THE OWNER PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB Inspection on Arrival 1 Inspect unit upon arrival In case of damage report immediately to transportation company and your local Modine sales representative 2 Check rating plate on unit to verify that power supply meets available electric power at the point of installation 3 Inspect unit received for conformance with description of product ordered including specifications where applicable Heater Parts from ACF Greenhouses INSTALLATION SPECIAL PRECAUTIONS THE INSTALLATION AND MAINTENANCE INSTRUCTIONS IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE SAFE EFFICIENT AND TROUBLE FREE OPERATION IN ADDITION PARTICULAR CARE MUST BE EXERCISED REGARDING THE SPECIAL PRECAUTIONS LISTED BELOW FAILURE TO PROPERLY ADDRESS THESE CRITICAL AREAS COULD RESULT IN PROPERTY DAMAGE OR LOSS PERSON
65. ssociates Mechanicsburg PA 717 761 4370 B J Terroni Bensalem PA 215 639 3600 Charles W Stanger Allison Park PA 412 492 9220 Hase Inc Schuylkill Haven PA 717 385 3682 RHODE ISLAND Emerson Swan Inc Randolph MA 617 986 2000 SOUTH CAROLINA L R Gorrell Co Greenville SC 864 297 7810 L R Gorrell Co Charleston SC 29418 803 824 9449 SOUTH DAKOTA Walters Climate Inc Minneapolis MN 612 544 8626 TENNESSEE Mech amp Indus Sales Gallaway TN 901 867 0435 Charles F Sexton Co Knoxville TN 423 588 9691 Aircon Sales Agency Nashville TN 615 327 4640 TEXAS SWK Inc Dallas TX 214 351 9985 Barnhart Taylor El Paso TX 915 533 1231 Paschal Harper Inc Lubbock TX 210 494 7593 Paschal Harper Inc San Antonio TX 210 224 1661 UTAH A A Maycock Co Salt Lake City UT 801 364 1926 VERMONT E W Leonard Inc Moodus CT 203 873 8691 VIRGINIA L A Prillaman Co Richmond VA 804 798 1455 WASHINGTON Proctor Sales Inc Lynnwood WA 800 562 1321 Suntoya PSI Spokane WA 509 534 1516 WEST VIRGINIA H P Heating Co Inc Charleston WV 304 345 9916 WISCONSIN C amp S Hydronics Inc Delafield WI 414 646 6325 WYOMING John Klaboe Butte MT 406 782 6366 McCoy Sales Corp Englewood CO 303 762 8012 A A Maycock Co Salt Lake City UT 801 364 1926 Canadian Sales Outlets ALBERTA
66. t Lack of combustion air causes burner flames to float The unit may be overfired so its flue outlet area may be too small for the increased firing rate Check input rate and reduce if necessary Soot or dust may be blocking the flue Check flue and clear any blockage Adjust primary air to get rid of yellow tipping that may produce soot to block flueways Make sure combustion air inlets are not blocked Figure 18 Floating Flame Condition 6 Flame Rollout Flames rolling out of the combustion air inlets when the burner is turned on can create a fire hazard scorch unit finish burn wires or damage controls Gas in the burner mixer may be ignited producing flashback Flame rollout is a variation of floating flames with flames reaching for air outside the combustion chamber Basic cause is lack of combustion air that may be due to overfiring poor venting or flue blockage Figure 19 Flame Rollout Appearance Standing Pilot Problem Symptoms and Diagnosis 1 If pilot does not light POSSIBLE CAUSES AND REMEDIES Check that manual gas control knob or lever on combination gas control is in the pilot position Bleed air from pilot line Use special care in bleeding propane units If pilot sputters check pilot line for condensate or other obstruction If pilot flame is feeble or short check pilot orifice for cleanliness Replace if necessary See pag
67. t to Bottom of Heater 215374 205274 60 Downward Hood For Blower Units BAE 100 BAE 125 04764 04967 BAE 145 BAE 175 200 BAE 225 BAE 250 BAE 300 BAE 350 0 77 105 076 104 0 32 44 0 32 44 04562 0 48 66 0 43 59 0 46 63 0 43 59 05170 053 73 0 76 103 0 75 102 0 75 103 05981 06386 0 74 101 0 29 40 0 29 40 04156 0 44 60 0 40 55 04967 05270 05879 06184 073 100 073 100 0 23 32 0 23 32 03852 04157 03447 0 38 52 0 37 51 0 33 45 0 47 64 0 43 60 0 49 67 0 46 64 0 71 98 0 70 95 0 56 76 0 53 73 0 60 81 0 57 78 0 72 98 0 70 96 0 28 38 0 3345 0 26 37 0 40 54 0 43 59 05069 05575 06893 06792 0 24 34 0 34 47 0 25 35 0 38 53 0 31 43 0 65 89 0 62 85 0 47 64 0 42 58 0 51 71 0 47 65 0 65 90 0 63 86 03650 04258 0 59 81 0 59 81 023 33 0 34 58 0 55 76 0 50 69 0 55 75 0 49 68 Mounting Height to Bottom of Heater Model BAE 50 BAE 100 BAE 125 BAE 175 BAE 200 BAE 225 04360 04259 BAE 250 BAE 300 BAE 350 BAE 400 S S S S S S Data Based on unit fired at full rated input 60 80 F entering air temperature and a 40 F temperature rise through unit Maximum mounting heights higher versus units without outlet devises
68. through a combustible floor or roof a metal thimble 4 inches greater than the vent diameter is necessary If there is 6 feet or more of vent pipe in the open space between the unit and where the vent pipe passes through the floor or roof the thimble need only be 2 inches greater than the diameter of the vent pipe If a thimble is not used all combustible material must be cut away to provide the specified clearance to combustibles Any material used to close the opening must be noncombustible 8 Top of vertical vent should extend at least two feet above the highest point where it passes through a roof and at least 2 feet higher than any portion of a building within a horizontal distance of 10 feet see Figure 3 9 Use a vent terminal to reduce downdrafts and moisture in vent A vent terminal that is very open will avoid spillage at unit s diverter relief opening and tripping of the blocked vent safety switch Table 1 PAE BAE Venting System Category Gas Controls Category Model Number Single Stage PAE 30 Two Stage Single Stage Two Stage PAE BAE 50 100 Modulating PAE BAE 125 400 All Table 2 ANSI Unit Heater Venting Requirements Description Venting Requirements Follow standard venting requirements Negative vent pressure Non condensing Condensate must be drained Negative vent pressure Condensing Positive vent pressure Non condensing Vent must be gastight Positive vent pressure
69. y others is required if the power exhauster accessory is used the step down transformer by others needs to 250VA 230V or 460V 3 systems the motor starter coil voltage motor starter by others must be 230V For 200V 3 systems the motor starter coil voltage motor starter by others must be 200V Control Operating Sequence For Standing Pilot with Pilot Lit Upon a call for heat from thermostat power is supplied to the combination gas control and at the same time power is supplied to the fan timer The main burner should light immediately The fan motor will start in 15 to 45 seconds When the thermostat has been satisfied power is turned off to the combination gas control and fan timer The main burner will go out but the pilot will continue to burn The fan motor will continue to operate for 45 to 75 seconds to allow the heat exchanger to cool down For Intermittent Pilot Upon a call for heat from the thermostat power is supplied to the ignition control and at the same time power is supplied to the fan timer Sparking will start at the pilot immediately and at the same time the first operator of the combination gas control opens to allow gas to flow to the pilot burner The pilot flame should light and be sensed proven in a few seconds As soon as the pilot flame is sensed the sparking will stop and the second operator of the combination gas control will open allowing gas to flow to the main burner In 15 to 45 seconds fr
70. ystem to stop the spillage These changes improvements could be lengthening the vertical vent run reducing the horizontal vent run insulating the vent pipe using a larger diameter vent pipe or using a less restrictive vent terminal If these changes do not stop the spillage or the installer Heater Parts from ACF Greenhouses SERVICE INSTRUCTIONS SAFETY DEVICES Limit Control Overheat Switch 2 Check actual input to unit against rated input The limit control mounted on the left inner side panel when 3 Check to be sure motor is operating facing front of unit will shut off the gas supply to the main 4 On propeller units check that fan is not loose on motor burner in the event of overheating It is a single pole single shaft On blower units check belt and sheave for tightness throw switch The contacts open to shut the electric gas valve or damage off in the event the unit should overheat This limit control should operate only when something is seriously wrong with the unit Anytime this control operates correct the difficulty immediately or serious damage may result If the limit control cuts off the gas supply during normal operation 1 Make sure deflector blades are open and that there are not any obstructions in the air inlet or discharge outlet On propeller units check fan speed against speed on motor nameplate On blower units check blower speed against Performance Data on pages 18 or 19 check for restr

Modine Manufacturing BAE User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents