Modine Manufacturing PD 30, PD 50, BD 50, PD 75, BD 75 Installation And Service Manual

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6-553.3

5H73889A (Rev. D)

April, 2002

NSTALLATION AND SERVICE MANUAL

gas-fired unit heaters

models PD and BD

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.

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.

CAUTION

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.

IMPORTANT

The use of this manual is specifically intended for a qualified installation and service agency. A qualified installation and service agency must perform all installation and service of these appliances.

Contents

Inspection on arrival ................................................................1

Installation (including venting)..............................................2-8

Operation ...........................................................................9-10

Checking input rate ...............................................................11

Dimensional data .............................................................12-13

Performance data.............................................................12-19

Service instructions – safety devices..............................20-21

Service instructions – general...............................................22

Troubleshooting................................................................22-24

Motor data........................................................................25-26

Model identification ...............................................................26

Control options ......................................................................27

Warranty ..................................................................Back cover

Pages

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.

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.

Inspection on Arrival

1. Inspect unit upon arrival. In case of damage, report immediately to transportation company and your local Modine sales representative.

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).

PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.

THIS MANUAL IS THE PROPERTY OF THE OWNER.

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, PERSONAL 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.

2. Turn off all gas before installing unit heaters.

3. 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 during any pressure testing of the gas supply piping system.

4. 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.

5. All units must be vented to the outside atmosphere.

6. 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.

7. 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.

8. To prevent premature heat exchanger failure do not locate ANY gasfired unit in areas where chlorinated, halogenated or acid vapors are present in the atmosphere.

9. 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.

10. 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 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.

11. Do not install unit outdoors.

12. For all sizes, minimum clearance to combustibles from the bottom is 12" and from the sides 18"; for PD sizes 30-50 from the top is 1" and from the flue collar 2"; for PD sizes 75-300 from the top is 2" and from the flue collar is 3"; for PD 350 from the top is 3" and from the flue collar is 4"; for PD 400 from the top is 4" and from the flue collar is 5"; and for all BD sizes from the top and flue collar is 6".

13. 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.

14. 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 described.

15. Do not install units below 7 feet measured from the bottom of the unit to the floor.

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.

17. Provide clearance for opening hinged bottom for servicing. See Figure 1. Do not set unit on its bottom.

18. 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.

19. Do not lift unit heater by gas controls, gas manifold, or power exhauster.

20.

Be sure no obstructions block air intake and discharge of unit heater.

21. Do not attach duct work, air filters, or polytubes to any propeller (PD) model unit heaters.

22. 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 .

23. 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 NFPA #88A and the Standard for Repair Garages NFPA #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.

24. Consult piping, electrical, and venting instructions in this manual before final installation.

25. 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.

26. 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.

27.

When servicing or repairing this equipment, use only Modine approved service replacement 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 1 Hinged Bottom for Burner Service

*(See Dimension "C", page 12)

WING SCREWS

THAT SECURE

HINGED

BOTTOM

THIS IS

DIMENSION C,

SEE PAGE 12

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” or CAN/CGAB149.2, “Installation Code for Propane Burning Appliances and Equipment.”

1. All installation 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 C.S.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.

4. Information on controls is supplied separately.

5. Modine unit heaters use the same burner for natural and propane gases.

ocating Unit Heaters

CAUTION

Units must not be installed in potentially explosive, flammable, or 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 ambient temperatures can be expected to fall outside of this range, contact factory for recommendations.

ombustion 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.

nit Suspension

The most common method of hanging Modine gas unit heaters is to utilize 3/8" threaded rod. On each piece of threaded rod used, screw a nut a distance of about one inch onto the end of the threaded rods that will be screwed into the unit heater. Then put a washer over the end of the threaded rod and screw the threaded rod into the unit heater weld nuts on the top of the heater at least 5 turns, and no more than 10 turns. Tighten the nut you first installed onto the threaded rod to prevent it from turning. Drill holes into a steel channel or angle iron at the same centerline dimensions as the heater that is being installed. The steel channels or angle iron pieces need to span and be fastened to appropriate structural members. Cut the threaded rods to the preferred length, push them through the holes in the steel channel or angle iron and secure with washers and lock nuts or lock washers and nuts. A double nut arrangement can be used here instead of at the unit heater (a double nut can be used both places but is not necessary). The entire means of suspension must of course be adequate to support the weight of the unit (see page 14 and 15 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.

CAUTION

For all sizes, minimum clearance to combustibles from the bottom is 12" and from the sides 18"; for PD sizes 30-50 from the top is 1" and from the flue collar 2"; for PD sizes 75-300 from the top is 2" and from the flue collar is 3"; for PD 350 from the top is 3" and from the flue collar is 4"; for PD 400 from the top is 4" and from the flue collar is 5"; and for all BD sizes from the top and flue collar is 6". Allow at least 12" at the rear or 6" beyond the end of the motor (whichever is greater), to provide ample air for combustion and for proper operation of fan. Provide clearance for opening at the hinged bottom for servicing - See Figure 1.

On all propeller units, except the PD 350 and PD 400, two tapped holes (3/8-16) are located in the top of the unit to receive threaded rods.

Units with two point suspension, models PD30 through PD300, 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.

PD30 through PD300 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.

Heater Parts from ACF Greenhouses

INSTALLATION

The PD 350 and PD 400 have four mounting holes. On all blower units, except the PD 350 and PD 400, two tapped holes are provided in the top of the unit and two holes in the blower support bracket. The PD 350 and PD 400 have four tapped holes in the top of the unit and two in the blower support

bracket for mounting.

o 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, 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 (machine screws are 3/8 - 16 x

1.75 UNC-2A THD). The pipe caps can then accommodate 3/4" NPT pipe for mounting. N

OTE:Avent from the unit or the flue collar to the outside atmosphere. A the pipe which connects the unit to a vent or chimney.

is the vertical passageway used to convey flue gases

Figure 2 Adjustable Mounting Brackets - To Adjust:

1. Remove outer side panels.

2. “Set screws” - loosen and position bracket where needed – then tighten set screws.

3. Re-attach outer side panels.

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 the 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.

Venting Instructions

1. All units with single-stage controls are Category I.

2. All units with two-stage or modulating controls are Category II. The installation of a Category II unit must conform to the requirements from Table 1 in addition to those listed below.

3. Select size of vent pipe to fit vent pipe connection at rear of appliance (see Page 12 and 13, Dimension J). 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 flue collars vary depending 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.

flue collar

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°F. 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. For double wall vent pipe, maintain clearances listed on vent pipe (Category I and II units) (see page 2, section 12 for allowable reductions). 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 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.

Table 1 ANSI Unit Heater Venting Requirements

Category Description Venting

III

Negative vent pressure Follow standard Non-condensing venting requirements.

Negative vent pressure Condensate must be Condensing drained.

Positive vent pressure Vent must be gastight. Non-condensing

Positive vent pressure Vent must be liquid and Condensing gastight. Condensate

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.

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).

11.A drip leg with cleanout cap is recomended for all vent systems to reduce the opportunity of damage to unit due to condensation.

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. Tee fitting and associated condensate disposal system must be periodically cleaned.

Requirements

must be drained.

Heater Parts from ACF Greenhouses

INSTALLATION

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 I or II unit into a 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

TERMINAL

MIN.

ROOF FLASHING

USE THIMBLE

THROUGH CEILING

1/4"

DRIP LEG WITH CLEANOUT CAP

iping

UNIT

1'0"

SLOPE 1/4" TO

THE FOOT

*SIZE ACCORDING TO EXPECTED SNOW DEPTH.

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 during any pressure testing of the gas supply piping system.

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.

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 3. 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 3 allows for the usual number of fittings with a 0.3” W.C. pressure drop. Where the gas supplied has a specific gravity other than 0.60, apply the multiplying factor as given in Table 2.

o not use flexible connectors

3. After threading and reaming the ends, inspect piping and remove loose dirt and chips.

4. Support piping so that no strains are imposed on unit or controls.

5. Use two wrenches when connecting piping to unit controls.

6. Provide a sediment trap before each unit and in the line where low spots cannot be avoided. (See Figure 4).

7. Take-off to unit should come from top or side of main to avoid trapping condensate.

8. Piping, subject to wide temperature variations, should be insulated.

9. Pitch piping up toward unit at least 1/4” per 15’ of horizontal run.

10. Compounds used on threaded joints of gas piping must be resistant to action of liquefied petroleum gases.

11. Purge air before lighting unit by disconnecting pilot tubing

at combination gas control.

n no case should line be

purged into heat exchanger.

12. After installation, check system for gas leaks, using a soap solution.

13. 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).

14. Allow at least 5 feet of piping between any pressure regulator and unit control string.

15. When Pressure/Leak testing, pressures above 14'' W.C. (1/2 psi), close the field installed shut-off valve, disconnect the appliance and its combination gas control from the gas supply line, and plug the supply line before testing. When testing pressures 14" W.C. (1/2 psi) or below, close the manual shut-off valve on the appliance before testing.

Table 2 Specific Gravity Conversion Factors

Multiplying factors to be used with Table 3 cubic ft./hr. values when the specific gravity of gas is other than 0.60.

ATURAL GAS Specific Gravity Factor

0.55 1.04

0.60 1.00

0.65 0.962

PROPANE GAS Specific Gravity Factor

1.50 0.633

1.53 0.626

1.60 0.612

Figure 4 Recommended Piping to Controls

GAS

SUPPLY LINE

GROUND

JOINT

VALVE

UNION

PLUGGED

1/8" NPT TEST

GAGE CONNECTION

CONTROLS

TRAP

MANUAL

SHUT-OFF

GAS

SUPPLY LINE

MIN.

SEDIMENT

Heater Parts from ACF Greenhouses

INSTALLATION

Table 3 Gas Pipe Capacities

In Cu. Ft. per Hour with Pressure Drop pf 0.3 in. W.C. with Specific Gravity 0.60.

Length of

Pipe in Ft.

3 45 60 75

90 105 120 150 180 210 240 270 300 450 600

1/2 3/4 1 1 1/4 1 1/2 2 3 4 6 8

76 218 440 750 1220 2480 6500 13880 38700 79000 73 152 285 590 890 1650 4700 9700 27370 55850 44 124 260 435 700 1475 3900 7900 23350 45600 50 105 190 400 610 1150 3250 6800 19330 39500

97 200 345 545 1120 3000 6000 17310 35300 88 160 320 490 930 2600 5400 15800 32250 80 168 285 450 920 2450 5100 14620 29850

158 270 420 860 2300 4800 13680 27920 120 242 380 710 2000 4100 12240 25000 128 225 350 720 1950 4000 11160 22800

Diameter of Pipe - Inches

205 320 660 1780 3700 10330 21100 190 300 620 1680 3490 9600 19740 178 285 580 1580 3250 9000 18610 170 270 545 1490 3000 8500 17660 140 226 450 1230 2500 7000 14420 119 192 380 1030 2130 6000 12480

Wiring

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 done 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.

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 threephase 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.

nstallation of Blower Models (BD UNITS)

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 (BD) Models Only

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

CAUTION

Do not attempt to attach ductwork of any kind to propeller PD models.

for even distribution of the air across the heat exchanger. Recommended layouts are shown below. When installing blower units with ductwork the following must be done.

rovide uniform air distribution over the heat exchanger.

1. 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.

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 13.

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.

Heater Parts from ACF Greenhouses

INSTALLATION

Recommended Installations

TURNING

VANES 3" MIN.

3" MAX.

12" MIN.

SIDE VIEW

BAFFLE

SIDE VIEW SIDE VIEW TOP VIEW

3" MAX.

TURNING

VANES

TURNING

VANES

BAFFLE

SIDE VIEW

12"

MIN.

3" MIN.

12"

MIN.

Dimension “B” Should Never Be Less than 1/2 of “A”

12"

MIN.

TOP VIEW

FED

12"

MIN.

TURNING

VANES

Installation of Blower Models (BD UNITS)

Determining Blower Speed

The drive assembly and motor on all gas-fired blower unit heaters are factory assembled. 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 BD 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 C207 drive, and the drive sheave must be set at 2.5 turns open to achieve a blower speed of 960 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 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 BD 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. Also,

0.2" W.C. must be added for the filter pressure drop for a total of 0.4" W.C. total pressure drop. Entering the performance table on page 18 for a BD 350, at 6481 cfm and 0.4" W.C. static pressure, it is seen that the unit will require a 5 hp motor using a C207 drive, and the motor sheave should be set at .5 turns open to achieve a blower speed of 1050 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.

Heater Parts from ACF Greenhouses

INSTALLATION

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

THREADED ROD MOUNTING

BRACKETS ON BLOWER ASSEMBLY

MOTOR

MOUNTING

BRACKET

BLOWER SHEAVE

MOTOR

ADJUSTMENT

BLOWER

HOUSING

MOTOR 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 facing 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. It is the installers responsibility to adjust the motor sheave to provide the specified blower performance as listed on pages 18 & 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 26 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.

SCREW

adjustable motor sheave is supplied with these units. If blower fan speed changes are required, adjust motor sheave as follows:

OTE: Do not fire unit until blower adjustment has been made

or unit may cycle on limit (overheat) control.

Shut-off power before making blower speed adjustments.

1. Refer to Determining Blower Speed on page 7 and to Performance Date 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).

4. To reduce the speed of the blower, turn outer side of motor sheave counterclockwise.

5. To increase the speed of the blower, turn outer side of motor sheave clockwise.

6. 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 6a). 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.

7. Check to make certain motor sheave and blower sheave are aligned. Re-align if necessary.

8. 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.

11. If adjustments are required, recheck motor amps after final blower speed adjustment.

Figure 6 Motor Sheave Adjustment

TOWARD MOTOR

SET SCREW

ADJUSTABLE HALF

OF SHEAVE

Figure 6a Belt Tension Adjustment

lower 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

3/4" DEFLECTION

WITH 5# FORCE

Heater Parts from ACF Greenhouses

OPERATION

CAUTION

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 connections 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.

ighting 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.

or 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).

hut Down Instructions

Turn off power and close manual gas valve.

fter 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.

Figure 7 Correct Pilot Flame

ilot Flame Adjustment

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 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

GAS CONTROL KNOB

PRESSURE REGULATOR ADJUSTMENT SCREW (UNDER CAP SCREW)

INLET

PRESSURE TAP

INLET

RESET BUTTON

atural 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.

PILOT ADJUSTMENT SCREW

OUTLET PRESSURE TAP

OUTLET

PILOT TUBING CONNECTION

Heater Parts from ACF Greenhouses

OPERATION

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 yellowtipped 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.

ropane 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. 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 welldefined 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 Flame Control" for adjusting the manifold.

n optimum flame will show a slightly yellow tip

Checking Input Rate

CAUTION

Important checked with unit in operation when making final adjustments.

nput 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

2. Start the heater and determine the number of seconds it

– Inlet pressure and manifold pressure must be

pilot lights served by the gas meter.

takes to consume 1 cu. ft. of gas. Two basic formulas are useful:

F1 = 3600 C/T

F2 = F1/C

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

Natural 1000-1150

Propane 2500

3. If the seconds for 1 cu. ft. are more (input less) than shown

in Table 4 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

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. 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 6.

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 6, 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 6, 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.

Btu per cu. ft.

ounter-clockwise

direction.

Heater Parts from ACF Greenhouses

CHECKING INPUT RATE

Figure 9 Major Gas and Electric Components

FAN MOTOR

FAN

GUARD

PILOT TUBING

COMBINATION

GAS CONTROL

IGNITION

CONTROL

TRANSFORMER

Table 4 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,

Sec.

10 12 14 16 18 20 22 24 26 28 30 35 40 45 50 55 60 70 80

90 100 120

Input, Cu. Ft. per Hour, When Meter Dial Size is:

1/2 cu. ft. 1 cu. ft. 2 cu. ft. 5 cu. ft.

180 150 129 112 100

90 82 75 69 64 60 51 45 40 36 33 30 26 22 20 18 15

360 300 257 225 200 180 164 150 138 129 120 103

90 80 72 65 60 51 45 40 36 30

ENTRANCE FOR

COMBUSTION AIR

720 600 514 450 400 360 327 300 277 257 240 206 180 160 144 131 120 103

90 80 72 60

JUNCTION

BOX

1800 1500 1286 1125 1000

900 818 750 692 643 600 514 450 400 360 327 300 257 225 200 180 150

TERMINAL

BOARD

Table 6 Manifold Pressure & Gas Consumption *

Natural Propane

BTU/Cu. Ft. 1050 2500 No. of Model Specific Gravity 0.60 1.53 Orifices Manifold Pressure In. W.C. 3.5 10.0

CFH 28.6 12.0

Gal/Hr. Propane – .33 PD 30 Sec/cu. ft. 126 300 1

Orifice Drill Size 38 52

CFH 47.6 20.0 PD 50 Gal/Hr. Propane – .55 BD 50 Sec/cu. ft. 76 180 1

Orifice Drill Size 30 45

CFH 71.4 30.0 PD 75 Gal/Hr. Propane – .82 BD 75 Sec/cu. ft. 50 120 1

Orifice Drill Size 21 39

CFH 95.2 40.0 PD 100 Gal/Hr. Propane – 1.15 BD 100 Sec/cu. ft. 38 90 2

Orifice Drill Size 30 45

CFH 119.0 50.0 PD 125 Gal/Hr. Propane – 1.43 BD 125 Sec/cu. ft. 30 72 2

Orifice Drill Size 26 43

CFH 138.1 58.0 PD 150 Gal/Hr. Propane – 1.64 BD 150 Sec/cu. ft. 26 62 2

Orifice Drill Size 21 39

CFH 166.7 70.0 PD 175 Gal/Hr. Propane – 1.86 BD 175 Sec/cu. ft. 22 51 3

Orifice Drill Size 28 43

CFH 190.5 80.0 PD 200 Gal/Hr. Propane – 2.19 BD 200 Sec/cu. ft. 19 45 3

Orifice Drill Size 25 42

CFH 238.1 100.0 PD 250 Gal/Hr. Propane – 2.74 BD 250 Sec/cu. ft. 15 36 3

Orifice Drill Size 18 36

CFH 285.7 120.0 PD 300 Gal/Hr. Propane – 3.29 BD 300 Sec/cu. ft. 13 30 4

Orifice Drill Size 21 39

CFH 333.3 140.0 PD 350 Gal/Hr. Propane – 3.84 BD 350 Sec/cu. ft. 11 26 5

Orifice Drill Size 23 41

CFH 381.0 160.0 PD 400 Gal/Hr. Propane – 4.38 BD 400 Sec/cu. ft. 9 23 6

Orifice Drill Size 25 42

*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.

Table 5 Orifice Drill Sizes with Decimal Equivalents

Main Burner Orifices

Dia. Dia.

Drill Decimal Drill Decimal

Size Equivalent Size Equivalent

18 .1695 38 .1015 21 .1590 39 .0995 23 .1540 41 .0960 25 .1495 42 .0935 26 .1470 43 .0890 28 .1405 45 .0820 30 .1285 52 .0635 36 .1065

Pilot Orifice Identity Numbers

Pilot Burner Identity No. Identity No.

Manufacturer Natural Gas Propane Gas

Honeywell

obertshaw

Johnson

BCR-18 BBR-11

①

1 8

7715 4710

1 O

① As number appears on top of pilot orifice.

Figure 10 Dials of Typical Gas Meter

①

Heater Parts from ACF Greenhouses

DIMENSIONS/PERFORMANCE – PD

D (OPENING)

L - Approx

MIN. DISTANCE

TO WALL IS L + 6"

J VENT PIPE

(MIN. DISTANCE TO WALL)

For clearance to combustibles, see page 3.

Dimensions (inches) — PD Do not use propeller units with duct work.

Dimension Model Number

Symbol PD 30 PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400

A B C D E

F G H

AA BB

① 3 4 5 6 6 7 7 7 8 9 10 10

(Mounting

Holes)

➂

Gas Connections

➃ 28-1/4 28-1/4 36 36 36-1/2 37-1/8 37-1/8 40-7/8 41 42-1/4 42-1/4 47-1/4

Fan Diameter

pprox. Weight

Diameter of round vent pipe to fit oval opening.

①

For natural gas; may vary depending on control availability.

➁

PD 30 through PD 300 — 2 holes (and the level hanging adjustment feature). PD 350 through PD 400 — 4 holes.

➂

Dimension equals overall plus 6".

➃

Performance — PD Inputs and outputs are the same for BD as PD

Standard Model Number

Btu/Hr. Input

Btu/Hr. Output

Entering Airflow CFM

Outlet Velocity

Air Temp. Rise °F

ounting Hgt.

(Max. Ft.) ① 7 9 12 14 14 16 17 15 19 21 20 19

eat Throw Ft.

H (Max. Mtg. Hgt.)

Motor

Data

➁

Power (amps)

Ratings shown are for elevations up to 2,000 ft. For elevations above 2,000 feet, ratings should be reduced at the rate of 4% for each 1,000 feet above sea level. (In Canada see rating plate.)

At 65°F ambient and unit fired at full-rated input. Mounting height as measured from bottom of unit, and without deflector hoods.

①

All single phase motors are totally enclosed and thermal overload protected. Data listed is for standard 115-volt, 60 hertz, single-phase motors.

➁

Horsepower

nit total

12-7/8 17-1/4 17-1/4 19-1/4 19-1/4 21 23-1/2 25-5/8 25-5/8 28-5/8 33-5/8 40 24-1/4 24-1/4 28-3/4 28-3/4 35-1/4 35-1/4 35-1/4 40-1/4 40-1/4 40-1/4 40-1/4 40-1/4 14-3/4 14-3/4 20 20 22 22 22 25 25 25 25 25

10-7/16 14-13/16 14-13/16 16-13/16 16-13/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 31-3/16 37-1/2

13 13 16 16 20 20 20 24 24 24 24 24

9-1/4 9-1/4 11 11 12 12 12 13-1/2 13-1/2 14 – –

2 2 2-3/4 2-3/4 3-5/8 3-5/8 3-5/8 4-3/8 4-3/8 4-3/8 4-1/4 4-1/4

9-1/4 13-5/8 13-5/8 15-5/8 15-5/8 17-3/8 19-7/8 22 22 25 30 36-3/8

5 5 6-1/4 6-1/4 8 8 8 9 9 9 9 9

6-1/4 6-1/4 6-1/2 6-1/2 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4

3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16

➁ 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4

– – – – – – – – – – 5 5 – – – – – – – – – – 16 16

19-1/2 20-1/8 30 30 30 31-1/8 31-1/8 34-7/8 34-7/8 36-1/4 35-1/2 40-1/2 22-1/4 22-1/4 29 29 30-1/2 30-1/2 30-1/2 32-7/8 32-7/8 32-7/8 32-7/8 32-7/8

9 12 12 14 14 16 18 20 20 22 22 24

58# 72# 102# 116# 152# 162# 169# 231# 231# 261# 330# 410#

PD 30 PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400

30,000 50,000 75,000 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000

24,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 200,000 240,000 280,000 320,000

440 740 1100 1460 1850 2180 2550 2870 3700 4460 4870 5440

515 610 736 860 870 931 959 819 1053 1123 1068 1016

51 50 51 51 50 51 51 52 50 50 53 54

①

RPM

ype

25 33 41 49 51 55 59 51 67 74 70 69

1/40 1/40 1/12 1/12 1/8 1/8 1/6 1/6 1/3 1/2 3/4 3/4

1550 1550 1550 1550 1625 1625 1075 1075 1075 1075 1125 1125

Shaded Shaded Shaded Shaded Perm. Perm. Perm. Perm. Perm. Perm. Perm. Perm.

Pole Pole Pole Pole Split Cap. Split Cap. Split Cap. Split Cap. Split Cap. Split Cap. Split Cap. Split Cap.

1.3 1.3 2.5 2.5 2.6 2.6 3.1 3.1 5.7 7.8 8.3 8.3

Heater Parts from ACF Greenhouses

DIMENSIONS/PERFORMANCE – BD

J VENT PIPE

4-5/8''

For clearance to combustibles, see page 3.

QxV

RxT

D (OPENING)

M (APPROX.)

L (MIN. DISTANCE TO WALL)

Dimensions (inches) — BD

Dimension

Symbol

A B C D E F G

H AA BB

① 4 5 6 6 7 7 7 8 9 10 10

K➃ Mounting Holes

Gas Connections

X EE

L w/ Blwr Encl & Filt Rk

L w/o Blwr Encl & Filt Rk

➂ 32 37-1/8 39-3/4 43-7/8 47-1/8 47-1/8 55 55 55 55 59

➄ 11-3/4 14-7/8 17-5/8 18-5/8 21-1/2 21-1/2 25-7/16 25-7/16 24-15/16 17-15/16 22

Q Blower Encl Ht

V Blower Encl Width

R Inlet Duct Height

T Inlet Duct Width

enter to Center

Blower Mtg. Holes S

Std. Mtr. Sheave Dia.

Std. Blower Sheave Dia.

Blower Wheel Diameter

Approx. Weight

Diameter of round vent pipe to fit oval opening.

①

For natural gas;may vary depending on control availability.

➁

This is an approximate dimension for standard motors, allow 3" for sheave and optional motors.

➂

BD 50 thru BD 300 — 4 holes (2 on blower and 2 on unit).

➃

BD350 and BD 400 — 6 holes (2 on blower and 4 on unit). Distance between mounting hole in unit casing and mounting hole on blower. On the BD 350 and BD 400, the distance is from rear mounting hole in casing to the mounting hole on blower.

➄

Motor pulley is adjustable.

➅

BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD 400

17-1/4 17-1/4 19-1/4 19-1/4 21 23-1/2 25-5/8 25-5/8 28-5/8 33-5/8 40 24-1/4 28-3/4 28-3/4 35-1/4 35-1/4 35-1/4 40-1/4 40-1/4 40-1/4 40-1/4 40-1/4 14-3/4 20 20 22 22 22 25 25 25 25 25

14-13/16 14-13/16 16-13/16 16-13/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 31-3/16 37-1/2

13 16 16 20 20 20 24 24 24 24 24

9-1/4 11 11 12 12 12 13-1/2 13-1/2 14 – –

2 2-3/4 2-3/4 3-5/8 3-5/8 3-5/8 4-3/8 4-3/8 4-3/8 4-1/4 4-1/4

13-5/8 13-5/8 15-5/8 15-5/8 17-3/8 19-7/8 22 22 25 30 36-3/8

5 6-1/4 6-1/4 8 8 8 9 9 9 9 9

6-1/4 6-1/2 6-1/2 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4

3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16

➁ 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4

– – – – – – – – – 5 5

– – – – – – – – – 16 16 41-3/8 46-5/8 49-5/8 56-5/8 56-5/8 56-5/8 63-5/8 63-5/8 63-5/8 63-5/8 63-5/8 47-5/8 52-5/8 55-5/8 51-5/8 62-5/8 62-5/8 69-5/8 69-5/8 69-5/8 69-5/8 69-5/8

38 43-1/8 45-3/4 49-7/8 53-1/8 53-1/8 61 61 61 61 65

4-1/2 5-3/4 5-3/4 7-1/2 7-1/4 7-1/4 8-1/2 8-1/2 8-1/2 8-1/2 8-1/2

22 22 25 25 30 30 34 34 34 34 34 14-1/8 17-1/8 17-1/8 21-3/8 21-3/8 21-3/8 25-1/8 25-1/8 25-1/8 25-1/8 25-1/8 17-1/2 17-1/2 21-1/4 21-1/4 29 29 34-1/4 34-1/4 34-1/4 44-3/8 44-3/8 15-3/4 15-3/4 15-3/4 20 20 20 23-3/4 23-3/4 23-3/4 23-3/4 23-3/4

16 16 19-3/4 19-3/4 27-1/2 27-1/2 32-3/4 32-3/4 32-3/4 42-7/8 42-7/8

10-15/16 13-15/16 18-7/16 18-7/16 17-5/16 17-3/8 20-3/8 20-3/8 20-3/8 20-3/8 20-3/8

➅ 3 3 3 3 3 3 3 3 3 3 4-1/2

8 10 8 7 11 7 14 10 7 6 10 8 8 9 9 13 13 15 15 15 15 15

116# 146# 158# 205# 215# 231# 307# 307# 331# 420# 490#

Standard Blower Motor Data — BD

Standard Model Number

BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD 400

Horsepower

Motor

Data

RPM Type

Total Unit

Power Amps

Data listed is for standard 115-volt, 60-Hertz, single-phase motors.

①

1/4 1/4 1/4 1/4 1/4 1/3 1/4 1/3 3/4 1 1-1/2 1725 1725 1725 1725 1725 1725 1725 1725 1725 1725 1725 Split Split Split Split Split Split Split Split Split Cap. Cap.

Phase Phase Phase Phase Phase Phase Phase Phase Phase Start Start

5.7 5.7 5.7 5.7 5.7 4.9 5.7 4.9 11.3 13.7 15.6

BLOWER

ENCLOSURE

(OPTIONAL)

FILTER RACK

(OPTIONAL)

Model Number

Note: Mounting heights and throws for BD models, without ductwork or nozzles, and at a cfm yielding a 55° temperature rise are the same as those listed for equivalent size PD units.

Heater Parts from ACF Greenhouses

PERFORMANCE DATA – NOZZLES

A choice of four air discharge nozzles accommodate various heat throw 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.

40° DOWNWARD NOZZLE

90° VERTICAL NOZZLE

5-WAY NOZZLES

40° SPLITTER NOZZLE

Mounting Height, Heat Throw, Heat Spread (in feet)

Nozzle

Type

40°

Downward

Nozzle

90° Vertical

Nozzle

40° Splitter

Nozzle

5-Way

Nozzle

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.

Max. Mounting Ht. (ft.) H 16 20 21 24 26 25 27 29 31 32 32

Heat Throw (ft.) T 48 61 64 71 79 76 81 86 94 96 96

Heat Spread (ft.) S 16 20 21 24 26 25 27 29 31 32 32

Max. Mounting Ht. (ft.) H 14 22 23 24 26 26 24 29 31 32 32

Heat Spread (ft.) S 14 22 23 24 26 26 24 29 31 32 32

Max. Mounting Ht. (ft.) H – – – 23 24 24 23 25 28 30 32

Heat Throw (ft.) T – – – 56 60 59 59 62 70 75 80

Heat Spread (ft.) S – – – 113 120 118 117 124 140 151 160

Max. Mounting Ht. (ft.) H – 18 18 23 22 21 20 25 26 23 26

Heat Spread (ft.) S – 25 26 32 31 29 28 35 36 32 36

BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD 400

Model Number

Heater Parts from ACF Greenhouses

DIMENSIONAL DATA

/4"

Downward Nozzles

/4"

Downward Nozzles

40°

90°

40°

Splitter Nozzles

5-Way

Nozzle

Dimensions (in inches)

Nozzle

Type

40° Downward

Nozzle

90° Vertical

Nozzle

40° Splitter

Nozzle

5-Way Nozzle

Dimension

Symbol

A 14-13/16 14-13/16 16-13/16 16-13/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 31-1/8 37-1/2 B 13 16 16 20 20 20 24 24 24 24 24 C 20 24 22 26 26 25 30 30 30 36 36 D 3-1/2 4 3 4 4 4 4 4 6 11 11

A 14-13/16 14-13/16 16-13/16 16-13/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 31-1/8 37-1/2 B 13 16 16 20 20 20 24 24 24 24 24 C 15 15 17 22 22 23 29 29 30 34 34 D 6 6 6 8 8 8 10 10 10 14 14

A – – – – 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 31-1/8 37-1/2 B – – – – 20 20 24 24 24 24 24 C – – – – 34 33 39 39 40 46 47 D – – – – 10 11 12 12 14 19 20

A 14-13/16 14-13/16 16-13/16 16-13/16 18-9/16 21 23-3/16 23-3/16 26-3/16 31-1/8 37-1/2 B 13 16 16 20 20 20 24 24 24 24 24 C 20-3/4 20-3/4 22-3/4 22-3/4 24-1/2 27 29 29 32 37 43-1/2 D 11 11 12 12 13 14 15 15 16 18 18

BD 50

BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD400

Model Number

Heater Parts from ACF Greenhouses

PERFORMANCE DATA – HOODS FOR PROPELLER MODELS

60 NOZZLE

30 NOZZLE

30 DOWNTURN NOZZLE 60 DOWNTURN NOZZLE

Performance Data — 30°, 60° and 90° Downward Deflector Hoods

ounting

M Height to

Bottom of

Heater

Models

' 6 15 22 9 23 22 13 30 41 14 31 43 15 34 47 17 37 51 14 31 43 20 43 59 23 48 66 21 45 62 21 44 61 12' 14' 16'

PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400

X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z

8 19 26 11 25 34 14 31 43 15 32 44 16 36 49 18 38 52 15 33 45 21 44 60 24 49 67 22 46 63 22 45 62

4 12 17 7 20 28 11 28 39 12 29 40 14 33 45 15 35 49 12 30 41 19 42 58 21 47 65 20 44 61 19 43 59

5 14 21 10 25 35 10 26 37 12 30 42 14 33 46 11 27 37 17 40 56 20 46 63 19 43 59 18 42 57

5 17 25 7 21 30 10 27 38 12 31 43 8 22 31 16 38 53 19 44 61 17 41 56 16 40 55 18' 20' 22'

Mounting Height to

Bottom of

Heater

Models

8' 10' 12' 14' 16'

PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400

X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z 0 19 26 0 26 36 0 33 45 0 34 47 0 38 52 0 40 55 0 35 47 0 47 65 0 52 72 0 49 68 0 48 66 0 14 19 0 23 32 0 31 42 0 32 44 0 36 49 0 39 53 0 33 45 0 46 63 0 51 70 0 48 66 0 47 64

0 18 25 0 28 38 0 29 40 0 33 46 0 36 50 0 30 41 0 44 60 0 50 68 0 46 64 0 45 62 0 10 14 0 23 33 0 25 35 0 30 41 0 33 46 0 26 36 0 41 57 0 48 65 0 44 61 0 43 59

0 13 19 0 18 25 0 25 35 0 29 41 0 19 27 0 38 53 0 45 62 0 41 57 0 40 55 18' 20' 22'

30° Downward Hood For Propeller Units

➀

6 18 26 6 20 29 9 26 37 6 18 26 14 36 50 17 42 58 15 38 53 15 37 52

12 32 45 15 39 54 13 35 49 13 33 47

8 24 35 13 35 49 10 29 42 8 25 37

8 26 38 8 24 36 8 24 35

60° Downward Hood For Propeller Units

➀

0 12 17 0 13 19 0 23 32 0 12 17 0 35 48 0 42 58 0 38 52 0 36 50

0 29 40 0 38 52 0 33 46 0 31 43 0 16 23 0 32 45 0 25 35 0 21 30

0 19 28 0 16 24 0 16 23

Mounting Height to

Bottom of

Heater

Models

8' 10' 12' 14' 16' 18' 20'

PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400

S S S S S S S S S S S 10 23 30 34 38 42 36 54 62 58 56 11 20 27 30 34 37 32 48 56 52 50 12 19 24 27 31 34 29 44 51 47 46

17 23 25 29 32 27 41 47 44 42 16 21 24 27 29 25 38 44 41 39

20 22 25 28 24 36 42 38 37

19 21 24 26 23 34 40 36 35 22' 24' 26' 28'

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.

➀

90° Downward Hood For Propeller Units

23 25 22 33 38 35 34

THROW-FLOOR COVERAGE

➀

31 36 33 32 30 35 32 31 29 33 31 30

32 30 29

NOTE:

X = FEED FROM HEATER

TO START OF FLOOR COVERAGE.

Y = FEET TO END OF

FLOOR COVERAGE.

Z = FEET TO END OF

THROW.

30° HOOD 60° HOOD

Heater Parts from ACF Greenhouses

PERFORMANCE DATA – HOODS FOR BLOWER MODELS

erformance Data — 30°, 60° and 90° Downward Deflector Hoods

Mounting Height to

Bottom of

Heater

Models

8' 10' 12' 14' 16' 18' 20' 22'

BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD 400

X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z

13 29 40 18 38 52 22 47 64 23 47 64 26 53 72 28 56 76 24 50 68 31 63 86 35 69 94 37 73 99 30 61 84 12 28 38 16 37 50 21 46 63 21 46 63 25 52 71 26 55 75 23 49 67 30 62 85 34 69 94 36 72 98 29 61 83 10 25 35 15 35 48 20 45 61 20 45 62 23 51 70 25 54 74 22 48 66 29 62 84 33 68 93 34 71 97 28 60 82

8 21 30 14 33 46 19 43 59 19 43 60 22 50 68 24 53 73 21 47 64 28 61 83 31 67 92 33 71 96 27 59 80

12 30 42 17 41 57 17 42 57 21 48 66 23 52 71 19 45 62 27 59 81 30 66 90 32 69 95 26 57 79

9 25 36 16 39 54 16 39 54 19 46 64 21 50 69 18 43 59 25 58 80 29 65 89 31 68 93 24 56 77

14 35 50 14 36 50 18 44 61 20 48 66 16 40 56 24 56 77 28 63 87 30 67 92 23 54 75

11 30 43 11 31 44 16 41 57 18 45 63 14 36 51 22 54 75 26 62 85 28 65 90 21 52 72 24' 26' 28' 3

Mounting Height to

Bottom of

Heater

Models

8' 10' 12' 14' 16' 18' 20' 22'

BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD 400

X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z X Y Z

0 31 42 0 40 55 0 50 68 0 50 69 0 56 77 0 60 82 0 53 73 0 68 93 0 74 102 0 78 107 0 66 90 0 28 39 0 38 52 0 48 66 0 49 67 0 55 76 0 59 81 0 52 71 0 67 91 0 74 101 0 77 106 0 65 88 0 25 34 0 36 49 0 47 64 0 47 65 0 54 74 0 57 79 0 50 69 0 65 90 0 72 99 0 76 104 0 63 87 0 19 27 0 33 45 0 44 61 0 45 62 0 52 71 0 56 76 0 48 67 0 64 88 0 71 97 0 75 102 0 62 85 0 11 16 0 29 40 0 42 57 0 42 58 0 50 68 0 54 74 0 46 63 0 62 85 0 69 95 0 73 100 0 60 82

0 22 31 0 38 53 0 39 53 0 47 64 0 51 70 0 43 59 0 60 82 0 68 93 0 72 98 0 58 79

0 33 46 0 34 47 0 43 60 0 48 66 0 39 54 0 58 79 0 65 90 0 70 95 0 55 76

0 26 36 0 27 38 0 39 54 0 44 61 0 34 47 0 55 75 0 63 86 0 67 92 0 52 72 24' 26' 28' 3

Mounting Height to

Bottom of

Heater

Models

8' 10' 12' 14' 16' 18' 20' 22' 24' 26' 28' 30'

BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD 400

S S S S S S S S S S S

29 42 56 61 72 79 70 98 113 121 94 26 38 50 55 65 70 63 88 101 108 84 24 35 46 50 59 64 58 80 92 99 77 22 32 43 46 55 60 53 74 85 91 71 21 30 40 43 51 56 50 70 80 85 67 19 28 38 41 48 53 47 66 75 81 63

27 36 39 46 50 45 62 71 76 60 26 34 37 44 48 42 59 68 73 57 24 33 35 42 45 41 57 65 70 55

31 34 40 44 39 55 63 67 52 30 33 39 42 38 53 60 65 50

29 32 37 41 36 51 58 62 49 32' 34' 36' 38' 40'

Data Based on unit fired at full rated input, 60°-80°F entering air temperature, and a 40°F temperature rise through

➁

unit. Maximum mounting heights higher versus units without outlet devises.

30° Downward Hood For Blower Units

➁

13 36 51 16 42 59 10 29 42 21 52 72 25 59 82 27 63 87 20 49 69

19 48 68 23 57 79 25 61 85 18 46 64 16 44 62 21 54 75 23 58 81 15 41 58 12 36 52 19 50 70 21 55 77 10 32 47

60° Downward Hood For Blower Units

➁

0 16 24 0 33 45 0 39 54 0 24 34 0 51 70 0 60 82 0 64 89 0 48 66

0 46 64 0 56 78 0 61 84 0 43 60 0 40 56 0 52 72 0 57 79 0 36 50 0 30 43 0 46 65 0 53 73 0 22 31

90° Downward Hood For Blower Units

➁

31 36 39 35 49 56 60 47

35 38 34 48 55 59 46

46 53 57 45 45 52 55 43 44 50 54 42 43 49 53 41

90° HOOD

Heater Parts from ACF Greenhouses

PERFORMANCE DATA - BLOWER UNIT HEATERS

Models With or Without Blower Enclosure

Temp Sheave Sheave Sheave Sheave

Model Rise Airflow RPM HP Drive Turns RPM HP Drive Turns RPM HP Drive Turns RPM HP Drive Turns

No. (°F) (cfm) No. Open No. Open No. Open No. Open

40 926 720 1/4 C183 2 800 1/3 C1 5 875 1/2 C61 4.5 945 1/2 C61 3.5 45 823 640 1/4 C183 3.5 730 1/4 C183 2 810 1/3 C1 5 885 1/3 C1 4 50 741 575 1/4 C182 1 675 1/4 C183 3 760 1/4 C183 1.5 845 1/3 C1 4.5

55 673 525 1/4 C182 2.5 630 1/4 C182 0 725 1/4 C183 2 810 1/4 C183 0.5

60 617 480 1/4 C182 3.5 595 1/4 C182 0.5 695 1/4 C183 2.5 785 1/4 C183 1 65 570 445 1/4 C182 4.5 565 1/4 C182 1.5 670 1/4 C183 3 760 1/4 C183 1.5 70 529 410 1/4 C182 5 545 1/4 C182 2 650 1/4 C183 3 745 1/4 C183 1.5 40 1389 585 1/2 C186 2.5 670 1/2 C186 1.0 745 3/4 C187 3.5 820 3/4 C187 2.5 45 1235 520 1/3 C185 4 615 1/2 C186 2.0 700 1/2 C186 0.5 775 1/2 C187 3.5 50 1111 470 1/4 C184 1 575 1/3 C185 3.0 665 1/3 C185 1.0 745 1/2 C187 3.5

55 1010 425 1/4 C184 2 540 1/4 C185 3.5 635 1/3 C185 1.5 725 1/2 C186 0.0

60 926 390 1/4 C184 3 510 1/4 C185 4.0 615 1/4 C185 2.0 705 1/3 C185 0.0 65 855 360 1/4 C184 4 490 1/4 C184 0.5 595 1/4 C185 2.5 695 1/3 C185 0.5 70 794 335 1/4 C184 5 470 1/4 C184 1.0 585 1/4 C185 2.5 680 1/4 C185 0.5 40 1852 795 1/2 C92 0.5 860 3/4 C91 4.5 925 3/4 C91 4.0 985 3/4 C91 3.0 45 1646 710 1/3 C90 2.0 780 1/2 C92 1.0 850 1/2 C91 4.5 915 3/4 C91 4.0 50 1481 640 1/4 C90 3.5 720 1/3 C90 2.0 790 1/2 C92 0.5 860 1/2 C91 4.5

55 1347 580 1/4 C200 1.0 670 1/4 C90 3.0 750 1/3 C90 1.5 820 1/2 C92 0.5

100

60 1235 530 1/4 C200 2.0 625 1/4 C200 0.0 710 1/4 C90 2.0 790 1/3 C90 1.0 65 1140 490 1/4 C200 3.0 595 1/4 C200 1.0 680 1/4 C90 2.5 765 1/3 C90 1.5 70 1058 455 1/4 C200 4.0 565 1/4 C200 1.5 660 1/4 C90 3.0 740 1/4 C90 1.5 40 2315 840 3/4 C199 5.0 890 1 C190 4.0 940 1 C190 3.5 990 1 C190 3.0 45 2058 745 1/2 C211 3.5 805 3/4 C199 5.0 860 3/4 C199 4.5 915 3/4 C199 4.0 50 1852 670 1/2 C211 5.0 735 1/2 C211 4.0 795 1/2 C211 3.0 855 3/4 C199 4.5

55 1684 610 1/3 C188 2.0 680 1/3 C188 0.5 745 1/2 C211 3.5 810 1/2 C211 3.0

125

60 1543 560 1/4 C188 3.0 635 1/3 C188 1.5 705 1/3 C188 0.0 770 1/2 C211 3.5 65 1425 520 1/4 C188 4.0 600 1/4 C188 2.5 675 1/3 C188 1.0 740 1/3 C202 4.0 70 1323 480 1/4 C188 5.0 570 1/4 C188 3.0 645 1/4 C188 1.5 715 1/3 C188 0.0 40 2778 515 1/2 C96 4.0 565 3/4 C38 4.5 615 3/4 C38 4.0 665 3/4 C38 3.0 45 2469 455 1/3 C191 0.0 515 1/2 C96 4.0 570 1/2 C96 3.0 620 3/4 C38 3.5 50 2222 410 1/4 C191 1.5 475 1/3 C95 5.0 535 1/2 C96 3.5 590 1/2 C96 2.5

55 2020 375 1/4 C191 2.5 445 1/4 C191 0.5 505 1/3 C95 4.0 565 1/2 C96 3.0

150

60 1852 345 1/4 C191 3.5 420 1/4 C191 1.0 485 1/3 C95 4.5 545 1/2 C96 3.5 65 1709 315 1/4 C191 4.5 400 1/4 C191 2.0 470 1/3 C95 5.0 530 1/3 C95 4.0 70 1587 295 1/4 C191 5.0 380 1/4 C191 2.5 455 1/4 C191 0.0 520 1/3 C95 4.0 40 3241 805 1-1/2 C193 3.5 840 1-1/2 C193 2.5 875 1-1/2 C193 2.0 910 1-1/2 C193 1.0 45 2881 715 1 C192 4.0 755 1 C192 3.5 795 1 C192 3.0 830 1-1/2 C193 3.0 50 2593 645 3/4 C192 5.0 690 3/4 C192 4.5 730 3/4 C192 4.0 770 1 C192 3.5

55 2357 585 1/2 C96 2.5 635 1/2 C96 1.5 680 3/4 C96 4.5 720 3/4 C192 4.0

175

60 2160 540 1/3 C95 3.5 590 1/2 C96 2.5 640 1/2 C96 1.5 685 3/4 C192 4.5 65 1994 495 1/3 C95 4.5 550 1/3 C95 3.5 605 1/2 C96 2.5 655 1/2 C96 1.5 70 1852 460 1/3 C95 5.0 520 1/3 C95 4.0 575 1/3 C95 3.0 630 1/2 C96 2.0 40 3704 420 3/4 C16 5.0 465 3/4 C16 4.0 505 1 C16 3.0 540 1 C16 2.0 45 3292 375 1/2 C101 5.0 420 1/2 C101 3.5 465 3/4 C16 3.5 510 3/4 C16 2.5 50 2963 335 1/3 C212 1.0 390 1/2 C101 4.5 440 1/2 C101 3.0 485 3/4 C16 3.5

55 2694 305 1/4 C212 2.0 365 1/3 C102 5.0 415 1/2 C101 3.5 465 1/2 C101 2.5

200

60 2469 280 1/4 C212 3.0 345 1/4 C212 0.5 400 1/3 C102 4.0 450 1/2 C101 3.0 65 2279 260 1/4 C212 4.0 325 1/4 C212 1.5 385 1/3 C102 4.5 440 1/2 C101 3.0 70 2116 240 1/4 C212 5.0 310 1/4 C212 2.0 375 1/3 C102 5.0 430 1/3 C102 3.5 40 4630 605 1-1/2 C105 4.5 635 1-1/2 C105 3.5 665 1-1/2 C105 3.0 690 2 C108 4.0 45 4115 535 1 C205 3.5 570 1 C205 3.0 605 1-1/2 C105 4.5 635 1-1/2 C105 3.5 50 3704 485 3/4 C205 4.5 520 3/4 C205 4.0 555 1 C205 3.0 590 1 C205 2.5

55 3367 440 1/2 C204 2.0 480 3/4 C205 5.0 520 3/4 C205 4.0 555 3/4 C205 3.0

250

60 3086 405 1/2 C204 3.0 450 1/2 C204 1.5 490 3/4 C205 4.5 530 3/4 C205 4.0 65 2849 370 1/3 C203 4.0 420 1/2 C204 2.5 465 1/2 C204 1.0 510 3/4 C205 4.0 70 2646 345 1/3 C203 4.5 395 1/3 C203 3.0 445 1/2 C204 1.5 490 1/2 C204 0.5 40 5556 825 3 C111 3.0 850 3 C111 2.5 875 3 C111 2.0 900 3 C111 1.0 45 4938 735 2 C108 3.0 760 2 C108 2.0 790 2 C108 1.5 815 3 C111 3.0 50 4444 660 1-1/2 C106 5.0 690 1-1/2 C106 4.0 720 1-1/2 C106 3.0 750 2 C108 2.5

55 4040 600 1 C205 2.5 635 1-1/2 C106 5.0 665 1-1/2 C106 4.5 700 1-1/2 C106 4.0

300

60 3704 550 3/4 C205 3.5 590 1 C205 2.5 625 1 C205 2.0 655 1-1/2 C106 5.0 65 3419 510 3/4 C205 4.0 550 3/4 C205 3.5 585 3/4 C205 2.5 620 1 C205 2.0 70 3175 470 3/4 C205 5.0 515 3/4 C205 4.0 555 3/4 C205 3.5 595 3/4 C205 2.5 40 6481 960 5 C207 2.5 980 5 C207 2.0 1005 5 C207 1.5 1030 5 C207 1.0 45 5761 850 3 C111 2.5 880 3 C111 1.5 905 3 C111 1.0 930 5 C111 3.0 50 5185 765 2 C210 4.5 795 3 C111 3.5 825 3 C111 3.0 850 3 C111 2.5

55 4714 695 1-1/2 C105 2.0 730 2 C210 5.0 760 2 C210 4.5 790 2 C210 3.5

350

60 4321 640 1-1/2 C105 3.5 675 1-1/2 C105 2.5 710 1-1/2 C105 1.5 740 1-1/2 C105 0.5 65 3989 590 1 C107 4.5 630 1 C107 3.5 665 1-1/2 C105 3.0 695 1-1/2 C105 2.0 70 3704 550 1 C107 5.0 590 1 C107 4.5 625 1 C107 3.5 660 1 C107 3.0 40 - - - - - - - - - - - - - - - - 45 6584 885 5 C207 4.0 915 5 C207 3.5 940 5 2C07 3.0 965 5 C207 2.5 50 5926 800 3 C111 3.5 825 3 C111 3.0 855 3 C111 2.0 880 5 C207 4.0

55 5387 725 2 C210 5.0 760 3 C111 4.5 790 3 C111 4.0 815 3 C111 3.0

400

60 4938 665 1-1/2 C105 2.5 700 2 C210 6.0 735 2 C210 5.0 765 2 C210 4.5 65 4558 615 1-1/2 C105 4.0 650 1-1/2 C105 3.0 685 1-1/2 C105 2.0 720 2 C210 5.0 70 4233 570 1-1/2 C105 4.5 610 1-1/2 C105 4.5 650 1-1/2 C105 3.5 680 1-1/2 C105 2.5

0.0 Static Air Pressure 0.1 Static Air Pressure 0.2 Static Air Pressure 0.3 Static Air Pressure

1/4

C182

1/4

C184

C90

1/4

C200

1/2

C211

1/4

C188

1/4

C191

C192

1/3

C95

1/4

C212

C205

C204

1/2

1/3 C203

C205

3/4

C1051-1/2

1-1/2 C105

➀ ➁ ➂ ➃ ➄

C1831/4

1/4 1/4 C183

C182

1/2 C186

C185

1/4

1/4 C184

C90

1/4 C200

1/3

C188

1/4

1/4 C191

C192

1/2 C96

C95

1/3

1/2

C101

1/4

C212

C205

3/4

1/2

C204

1C107 C107

3 3

C111 C111

1-1/2 C105 1-1/2 C105

For 575V selections, please see chart on page 19.

1/3

1/4

C183

C187

1/3

1/4

1/2

1/4

1/2

1/3

1/2

1/3

3/4

1/2

1/3

1-1/2

3/4

1/2

3/43/4

C185

C91

C90

C211

C188

C96

C95

C192

C96

C101

C102

C105

C205

C204

C205C205

C111C111

1/2

1/3

C185

3/4

C91

1/2

1/3

C90

3/4

C199

1/2

C211

1/3

3/4

C38

C96

1/2

C95

1/3

1-1/2

C193

C192

3/4

1/2 1/2

C96 C96

3/4

1/2

C101

C205

3/4

C111

C106 C1061-1/2

1-1/2

C207 C2075 5

C105C105 1-1/21-1/2

C207 C207

C210

0.4 Static Pressure

RPM HP Drive Turns

1010 1/2 C61 3

1/2 C61

955 1/2 C61 3.5 915 1/3 C1 4 885 1/3 C1 4.5

1/3 860 1/3 C1 4.5 840 1/4 C183 0

1/4 825 1/4 C183 0

890 3/4 C187 1.5

3/4 850 3/4 C187 2.0

825 1/2 C187 2.5 805 1/2 C187 3.0

1/2

790 1/2 C187 3.0 775 1/2 C187 3.5 770 1/2 C187 3.5

1040 1 C91 2.5

975 3/4 C91 3.0 925 1/2 C91 4.0 890 1/2 C91 4.0

1/2 860 1/2 C91 4.5 835 1/3 C90 0.0

1/3 820 1/3 C90 0.5

1035 1-1/2 C201 4.0

965 1 C190 3.5 910 3/4 C199 4.0 865 1/2 C211 2.0 830 1/2 C211 2.5

1/2 805 1/2 C211 3.0 785 1/3 C202 3.0 705 1 C38 2.0 670 3/4 C38 3.0 640 3/4 C38 3.5 615 1/2 C96 2.0 600 1/2 C96 2.5

1/2 585 1/2 C96 2.5 575 1/3 C95 3.0 940 1-1/2 C193 0.0

1-1/2

865 1-1/2 C193 2.0 810 1 C192 3.0 765 3/4 C192 3.5 730 3/4 C192 4.0 700 1/2 C96 0.5 680 1/2 C96 1.0

3580 1 C16 1.0

550 1 C16 2.0 525 3/4 C16 2.5

3/4 510 3/4 C16 2.5

500 1/2 C101 1.5 490 1/2 C101 2.0

1/2 485 1/2 C101 2.0 720 2 C108 3.0 665 1-1/2 C105 2.5

1-1/2

625 1-1/2 C105 4.0 595 1 C205 2.5 570 3/4 C205 3.0 550 3/4 C205 3.5

3/4 535 3/4 C205 3.5

- - - 840 3 C111 2.5 780 2 C108 1.5 730 1-1/2 C106 3.0 690 1-1/2 C106 4.0 655 1 C205 1.0

1 C205

630 1 C205 2.0

1050 5 C207 0.5

955 5 C111 2.5 880 3 C111 1.5 820 2 C210 3.0

770 2 C210 4.0 730 1-1/2 C105 1.0

1-1/2 C105

695 1-1/2 C105 2.0

- - - 985 5 C207 2.0

910 5 C207 3.5 845 3 C111 2.5 795 3 C111 3.5 750 2 C210 4.5 715 1-1/2 C105 1.5

Sheave

No. Open

C183

C187

C91

C90

C211

C96

C193

C192

C16

C101

C105

C205

C210

C1113

Heater Parts from ACF Greenhouses

PERFORMANCE DATA - CONTINUED

Models With or Without Blower Enclosure

Temp Sheave Sheave Sheave

Model Rise Airflow RPM HP Drive Turns RPM HP Drive Turns RPM HP Drive Turns

No. (°F) (cfm) No. Open No. Open No. Open

40 926 1070 3/4 C61 2.0 1130 3/4 C61 1.5 – – – – 45 823 1020 1/2 C61 2.5 1085 3/4 C61 2.0 – – – – 50 741 985 1/2 C61 3.0 1050 1/2 C61 2.5 – – – –

55 673 955 1/2 C61 3.5 1025 1/2 C61 2.5 – – – –

60 617 935 1/3 C1 3.5 1000 1/2 C61 3.0 – – – – 65 570 915 1/3 C1 4.0 985 1/3 C1 3.0 – – – – 70 529 905 1/3 C1 4.0 975 1/3 C1 3.0 – – – – 40 1389 955 1 C91 3.5 1010 1 C91 3.0 – – – – 45 1235 920 3/4 C187 1.0 985 1 C91 3.0 1045 1 C91 2.5 50 1111 895 3/4 C187 1.5 960 3/4 C187 0.5 1025 1 C91 2.5

55 1010 880 3/4 C187 2.0 945 3/4 C187 1.0 1010 3/4 C187 0.0

60 926 865 1/2 C187 2.0 940 3/4 C187 1.0 1005 3/4 C187 0.0 65 855 855 1/2 C187 2.0 930 3/4 C187 1.0 1000 3/4 C187 0.0 70 794 850 1/2 C187 2.0 925 3/4 C187 1.0 995 3/4 C187 0.0 40 1852 1095 1C C91 2.0 1145 1 C91 1.0 – – – – 45 1646 1035 3/4 C91 2.5 1090 1 C91 2.0 1140 1 C91 1.5 50 1481 985 3/4 C91 3.0 1045 3/4 C91 2.5 1100 3/4 C91 2.0

55 1347 955 1/2 C91 3.5 1015 3/4 C91 3.0 1070 3/4 C91 2.0

100

60 1235 925 1/2 C91 4.0 990 3/4 C91 3.0 1050 3/4 C91 2.5 65 1140 905 1/2 C91 4.0 970 1/2 C91 3.5 1030 3/4 C91 2.5 70 1058 890 1/2 C91 4.0 955 1/2 C91 3.5 1020 1/2 C91 2.5 40 2315 1080 1 1/2 C201 3.0 1125 1 1/2 C201 2.5 1165 1-1/2 C201 1.5 45 2058 1010 1 C190 3.0 1060 1 C190 2.0 1105 1 C190 1.5 50 1852 960 3/4 C199 3.5 1010 3/4 C199 3.0 1055 1 C190 2.5

55 1684 920 3/4 C199 4.0 970 3/4 C199 3.0 1020 3/4 C199 2.5

125

60 1543 890 1/2 C211 1.5 940 3/4 C199 3.5 995 3/4 C199 3.0 65 1425 865 1/2 C211 2.0 920 1/2 C211 1.0 970 3/4 C199 3.0 70 1323 845 1/2 C211 2.5 900 1/2 C211 1.5 955 1/2 C211 0.5 40 2778 750 1 C38 1.5 – – – – – – – – 45 2469 715 1 C38 2.0 755 1 C38 1.5 – – – – 50 2222 685 3/4 C38 2.5 730 3/4 C38 2.0 – – – –

55 2020 665 3/4 C38 3.0 715 3/4 C38 2.0 – – – –

150

60 1852 650 1/2 C96 1.5 700 3/4 C38 2.5 – – – – 65 1709 640 1/2 C96 1.5 690 3/4 C38 2.5 – – – – 70 1587 630 1/2 C96 2.0 680 1/2 C96 1.0 – – – – 40 3241 970 2 C80 2.5 1005 2 C80 1.5 1035 2 C80 1.0 45 2881 900 1 1/2 C193 1.0 935 1 1/2 C193 0.5 970 2 C80 2.5 50 2593 845 1 C192 2.5 885 1 1/2 C193 1.5 920 1-1/2 C193 0.5

55 2357 805 1 C192 3.0 845 1 C192 2.5 880 1 C192 1.5

175

60 2160 770 3/4 C192 3.5 815 3/4 C192 2.5 855 1 C192 2.0 65 1994 745 3/4 C192 3.5 790 3/4 C192 3.0 830 3/4 C192 2.5 70 1852 725 1/2 C96 0.0 770 3/4 C192 3.5 815 3/4 C192 2.5 40 3704 615 1-1/2 C105 4.0 650 1 1/2 C105 3 685 – – – 45 3292 590 1 C16 1.0 625 1 1/2 C105 4 660 – – – 50 2963 570 3/4 C16 1.5 610 1 C16 0.5 645 – – –

55 2694 555 3/4 C16 1.5 595 1 C16 0.5 635 – – –

200

60 2469 545 3/4 C16 2.0 590 3/4 C16 1 630 – – – 65 2279 540 3/4 C16 2.0 585 3/4 C16 1 625 – – – 70 2116 535 1/2 C101 0.5 580 3/4 C16 1 625 – – – 40 4630 750 2 C108 2.5 775 2 C108 2 – – – – 45 4115 695 1 1/2 C105 2.0 725 2 C108 3 755 2 C108 2.5 50 3704 660 1 1/2 C105 3.0 690 1 1/2 C105 2 720 1 1/2 C105 1.0

55 3367 630 1 C205 2.0 665 1 1/2 C105 3 695 1 1/2 C105 2.0

250

60 3086 605 1 C205 2.0 645 1 C205 0.5 680 1 C205 1.0 65 2849 590 3/4 C205 2.5 630 1 C205 2 665 1 C205 1.0 70 2646 575 3/4 C205 3.0 615 3/4 C205 2.0 655 1 C205 1.0 40 – – – – – – – – – – – – – 45 4938 865 3 C111 2.0 890 3 C111 1.5 915 3 C111 1.0 50 4444 805 2 C108 1.0 830 2 C108 0.5 860 3 C111 2.0

55 4040 760 1 1/2 C106 2.5 785 2 C108 1.5 815 2 C108 1.0

300

60 3704 720 1 1/2 C106 3.5 750 1 1/2 C106 2.5 780 1 1/2 C106 1.5 65 3419 690 1 1/2 C106 4.0 720 1 1/2 C106 3.5 750 1 1/2 C106 2.5 70 3175 660 1 C205 1.0 695 1 C205 0.5 725 1 1/2 C106 3.0 40 6481 1070 5 C207 0.5 1095 5 C207 0.0 – – – – 45 5761 975 5 C207 2.0 1000 5 C207 1.5 1025 5 C207 1.5 50 5185 905 3 C111 1.0 930 3 C111 0.5 955 3 C111 0.0

55 4714 845 3 C111 2.5 870 3 C111 2.0 900 3 C111 1.0

350

60 4321 800 2 C210 3.5 825 2 C210 3.0 855 2 C210 2.5 65 3989 760 1 1/2 C105 0.0 790 1 1/2 C100 4.0 815 2 C210 3.0 70 3704 725 1 1/2 C105 1.0 755 1 1/2 C105 0.0 785 1-1/2 C100 4.0 40 - - - - - - - - - - - - 45 6584 1010 5 C207 1.5 1035 5 C207 1.0 1055 5 C207 0.5 50 5926 935 5 C207 3.0 955 5 C207 2.5 980 5 C207 2.0

55 5387 870 3 C111 2.0 895 3 C111 1.0 920 3 C111 0.5

400

60 4938 820 3 C111 3.0 850 3 C111 2.5 875 3 C111 2.0 65 4558 780 2 C210 4.0 805 2 C210 3.5 835 2 C210 2.5 70 4233 745 1 1/2 C105 0.5 775 2 C210 4.0 800 2 C210 3.5

.5 Static Air Pressure 0.6 Static Air Pressure 0.7 Static Air Pressure

C61

1/2

1/3

3/4

C187

1/2

3/4

1/2

C199

3/4

1/2

C211

C38

3/4

1/2

C96

C192

3/4

C16

3/4

1-1/2

C105

C205

3/4

1-1/2

C106

C207

C111

1-1/2

C105

C207

C111

➀ ➁ ➂ ➃ ➄

Data for use with filters only

3/4

C61

1/2

1/3

C91

3/4

1/2

3/4

1/2

3/4

1-1/2

3/4

1-1/2

3/4

1-1/2

C187

C91C91

C199

C211

C38

C193

C192

C105

C16

C108

C105

C205

C108

C106

C207

C111

C207

C111

C210

3/4

1-1/2

C91

C187

C91

C190

C199

C80

C192

C105

C205

C111

C106

C111

C210

C207

C111

C210

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.

BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350

D 400

Shaded area indicates the unit’s standard motor &

➀

standard drive arrangement. For operation outside the shaded area, specify motor Hp and drive number. Outputs shown are for elevations up to 2000'. For

➁

elevations 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

➂

operation, check blower rpm. Mounting height and throw for BD models (w/o duct-

➃

work or nozzles and at an airflow yielding a 55° temperature rise), are the same as those listed on page 12 for equivalent PD models. Rpm setting shown in

➄

settings and standard drives.

0.1" W.C.

0.2" W.C.

0.3" W.C.

0.1" W.C.

0.2" W.C.

0.1" W.C.

0.2" W.C.

old

type indicate factory

Important: Note for 575V Only

P & Drive HP & Drive to ORDER

from this Catalog from Price List ➀

1/4 - C182 = 1/4 - C194

D 50

D75

D100

D125

D150

BD175

D200

BD250

BD300

BD350

BD400

➀

Performance is the same; motor sheave can just accomodate larger shaft.

1/4 - C183 = 1/4 - C195

1/3 - C1 = 1/3 - C61

1/4 - C184 = 1/4 - C196

1/4 - C185 = 1/4 - C186

1/3 - C185 = 1/3 - C186

1/4 - C200 = 1/4 - C208

1/4 - C90 = 1/4 - C92

1/3 - C90 = 1/3 - C92

1/4 - C188 = 1/4 - C189

1/3 - C188 = 1/3 - C189

1/3 - C202 = 1/3 - C211

1 1/2 - C201 = 1 1/2 - C209

1/4 - C191 = 1/4 - C197

1/3 - C197 = 1/3 - C197

1/3 - C95 = 1/3 - C96

1 1/2 - C193 = 1 1/2 - C198

1/4 - C212 = 1/4 - C213

1/3 - C212 = 1/3 - C213

1/3 - C102 = 1/3 - C101

1 1/2 - C105 = 1 1/2 - C180

1/3 - C203 = 1/3 - C204

1 1/2 - C105 = 1 1/2 - C180

1 1/2 - C106 = 1 1/2 - C108

1 1/2 - C105 = 1 1/2 - C180

1 1/2 - C100 = 1 1/2 - C210

1 1/2 - C105 = 1 1/2 - C180

Heater Parts from ACF Greenhouses

SERVICE INSTRUCTIONS – SAFETY DEVICES

Figure 13 Service, Safety, and Other Major Unit Heater Components

LIMIT CONTROL LOCATED UNDER LEFT SIDE PANEL

VENT

RELIEF

OPENING

VENT PIPE

CONNECTION

(FRONT, TOP VIEW)

BLOCKED

VENT SAFETY

SWITCH

FOR

SERVICE,

REMOVE

LEFT SIDE

PANEL

COMBUSTION AIR

INLETS & BURNER

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. Also 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

DIMPLED

HEAT

EXCHANGER

LOUVERS

PILOT

TUBING

COMBINATION

GAS CONTROL

JUNCTION

BOX

TERMINAL

BOARD

the left outer side panel, held in place by screws at the rear of the unit.

MPORTANT 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 system 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.

FAN

MOTOR

Heater Parts from ACF Greenhouses

SERVICE INSTRUCTIONS – SAFETY DEVICES

If these changes do not stop the spillage or the installer chooses not to make changes, a power exhauster is really the only recommended fix (see bulletin 6-530).

Low ambient installations can also be a cause for extended spillage. Be aware that in these installations for freeze protection and/or condensate protection, there is a good chance that a power exhauster will be necessary.

In instances where the blocked vent safety switch trips repeatedly, refer to Figure 14.

After the vent system has been changed, or if no blockage or damage is found in the vent system, the blocked vent switch may be reset. reset button located on the switch in the top of the unit.

o reset the blocked vent switch, depress the

Figure 14 BVSS - Troubleshooting Flow Chart

Is vent blocked or restricted?

YES

Remove restriction

Is there a negative pressure in building? (see note 2) Replace blocked vent switch;

With the switch reset, turn on the electric and gas supply to the unit heater and restart the unit. Carefully observe the operation of the unit to assure that it is operating correctly. If the block vent switch does not allow the unit to function, or trips after the unit has operated for a period of time, call a qualified service agency to service the equipment. blocked vent safety switch with a switch. Do not attempt to replace a defective blocked vent safety switch with a switch other than that supplied by the unit heater manufacturer.

o not attempt to bypass the

Is there spillage after 5 minutes? (see note 1)

YES

Does switch still trip?

YES

Can negative pressure

be corrected?

YES YES

Correct

negative

pressure

Note 1:

Note 2:

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 spillage. The flame or smoke should be pulled in.

One indication of negative pressure is that outside doors tend to swing toward inside of building.

NO NO

Install

power vent

accessory

Is vent in compliance

with NFGC?

NO NO

YES

Correct vent

Is unit overfired?

YES

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

YES

Does unit still trip?

Install power vent

accessory

YES

Install power

exhauster accessory

Heater Parts from ACF Greenhouses

ERVICE INSTRUCTIONS – GENERAL

ONLY PEOPLE TRAINED AND FAMILIAR WITH THE OPERATION OF UNIT HEATERS AND THEIR CONTROLS SHOULD SERVICE THIS UNIT.

General 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.) pressure is available, 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.

If air

c. 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.

3. Check wiring for possible loose connections.

4. Controls – See control instruction sheets furnished separately with the unit heater.

o Remove Main Burner

1. Turn off all electricity and gas to unit.

2. Lower bottom pan to expose burner and manifold. See Figure 1, Page 2.

3. Disconnect pilot tubing and thermocouple lead (or ignition cable) at the combination gas control (and ignition control.)

4. 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.

Troubleshooting Guide

Figure 15 Manifold Adjustment, Natural Gas

MANIFOLD

MAIN

BURNER

ORIFICES

MANIFOLD MOUNTING

SCREW AND PIN

MIXER TUBES

BURNER

RETAINING 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.

. 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 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.

Figure 16 Air Shutter Adjustment, Propane Gas

MANIFOLD

AIR

SHUTTER

MIXER TUBES

Figure 17 Lifting Flame Condition

MAIN

BURNER

ORIFICES

Heater Parts from ACF Greenhouses

TROUBLESHOOTING GUIDE

2. Yellow Tipping

Yellow tipping of a normally blue flame is caused by insufficient 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.

. 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 18 Wavering Flame or Misalignment

GOOD

BAD

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 out. 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 19 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 20 Flame Rollout Appearance

Standing Pilot Problem Symptoms and Diagnosis

1. If pilot does not light:

POSSIBLE CAUSES AND REMEDIES

1a. Check that manual gas control (knob or lever) on

combination gas control is in the pilot position.

1b. Bleed air from pilot line. (Use special care in bleeding

propane units.)

1c. If pilot sputters, check pilot line for condensate or other

obstruction.

1d. If pilot flame is feeble or short, check pilot orifice for

cleanliness. Replace if necessary. See page 9 for pilot flame adjustment.

1e. Be sure thermocouple contact point is clean. If problem

persists, replace thermocouple.

1f. If the above steps do not correct the condition, consult

your local qualified installation and service contractor or appropriate utility company.

. If standing pilot does not stay lit:

POSSIBLE CAUSES AND REMEDIES

2a. Check inlet pressure with all units operating, making

certain that there is proper pressure.

2b. Check pipe or tubing size to unit. See Table 2.

2c. Be sure all pilot connections are tight.

2d. Check for excessive drafts.

2e. Check for clogged pilot orifice or pilot line.

2f. Check for leaks around pilot fittings. If leaks cause flame

impingement on thermocouple lead, thermocouple may become inoperative.

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.

3b. 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.

. If main burners do not light:

POSSIBLE CAUSES AND REMEDIES

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.

4e. If the above does not correct the condition, consult your

local gas company or local Modine representative.

ntermittent Pilot Problem Symptoms and

Diagnosis

1. Pilot will not light or stay lit:

POSSIBLE CAUSE POSSIBLE REMEDY

1a. No spark at ignitor.

1b. Dirty or defective flame

sensor or loose connections to flame sensor.

1c. Pilot valve electrical

connections loose. 1d. Defective pilot valve. 1e. Poor ground connections. 1f. No power from control

transformer. 1g. Spark not located in pilot gas

stream. 1h. Dirty or plugged pilot orifice. 1i. Pilot line kinked or

obstructed. 1j. Pilot flame too low.

1k. Flame sensor out of position. 1l. Defective ignition controller.

1a. Check connections. Check for

proper spark gap, cracked or broken electrode ceramic, blown controller fuse or brittle, cracked or loose high tension cable. Check power exhauster pressure switch. Replace if defective.

1b. Check milli-amps of sensor.

Tighten loose connections. Clean sensor with steel wool. Replace flame sensor if necessary.

1c. Tighten connections.

1d. Replace. 1e. Check grounding means. 1f. Check transformer voltage on

secondary side for 25v.

1g. Correct or replace pilot.

1h. Clean or replace. 1i. Correct or replace pilot line.

1j. Check pilot flame and adjust

per valve manufacturer’s

recommendations. 1k. Reposition. 1l. Replace.

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 regulator.

2l. Defective thermostat or

thermostat out of calibration.

2m.Thermostat heat anticipator

incorrectly set. 2n. Defective ignition controller. 2p. Blocked vent safety switch

tripped.

2a. Turn to on position. 2b. Reset system. 2c. Replace sensor.

2d. Correct or replace.

2e. Check and adjsut if

necessary to manufacturer’s recommendations.

2f. Check current according to

manufacturer’s recommendations and

replace if necessary. 2g. Check wiring. 2h. Check grounding means.

2i. Check voltage to controller

and gas valve. 2j. Check connections. Replace

limit control if necessary. 2k. Inspect gas valve regulator.

Replace if necessary. 2l. Calibrate thermostat or

replace if necessary. 2m.Check anticipator setting

and correct if necessary. 2n. Replace. 2p. Refer to page 20 for

instructions

3. Burner shuts down before thermostat is satisfied:

POSSIBLE CAUSE POSSIBLE REMEDY

3a. Flame sensing circuit failure.

3b. Soot on sensing rod.

3c. Blockage in heat exchanger.

3d. Blockage in main burner

orifice.

3a. Check flame sensing rod,

sensor ceramic, sensor lead

and connections for damage

or loss of continuity; Replace

defective elements. 3b. Clean off soot and adjust pilot

to smaller size. 3c. Clean heat exchanger.

Determine cause and correct. 3d. 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. Check thermostat and

anticipator setting. Replace if

defective. 4b. Replace 4c. Replace.

If a qualified service person cannot solve the problem, consult your local gas company or Modine representative.

hen servicing, repairing or replacing parts on these units always

W give the complete Model Number (which includes power code and control code) and Serial Number from the unit rating plate.

See page 26 for Model Number and Serial Number Designations.

CAUTION

Do not attempt to reuse ignition controllers which have been wet. Replace defective controller.

Heater Parts from ACF Greenhouses

MOTOR DATA

ower Code Description — Propeller PD Models

Pwr. Electric PD 30 PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400

Code Power Horsepower

115/60/1 1/40 1/40 1/12 1/12 1/8 1/8 1/6 1/6 1/3 1/2 3/4 3/4

230/60/1 1/40 1/40 1/8 1/8 1/8 1/8 1/6 1/6 1/3 1/2 3/4 3/4

200/60/3 – – 1/4 1/4 1/4 1/4 1/3 1/3 1/3 1/2 3/4 3/4

230/460/60/3

➀ ➁ ➂

– – 1/4 1/4 1/4 1/4 1/3 1/3 1/3 1/2 3/4 3/4

Motor Data and Total Unit Power Requirements — Propeller PD Models

Voltage 115/60/1 230/60/1 200/60/3 230/460/60/3

HP Amps Rpm Amps Watts Amps Rpm Amps Watts Amps Rpm Amps Watts Amps Rpm Amps Watts

1/40 1/12

1 1/6 1/4 1 1/2 3/4

Mtr. Mtr. Total Total Mtr. Mtr. Total Total Mtr. Mtr. Total Total Mtr. Mtr. Total Total

1.0 1550 1.3 110 0.4 1550 0.6 110 – – – – – – – –

1.6 1625 1.9 200 – – – – – – – – – – – –

2.3 1625 2.6 300 1.0 1725 1.2 300 – – – – – – – –

2.8 1075 3.1 310 1.5 1075 1.7 310 – – – – – – – – – – – – – – – – 1.3 1725 1.7 380 1.3/.7 1725 1.6/0.8 380

5.4 1075 5.7 490 2.2 1075 2.8 490 1.9 1140 2.1 490 2.1/1.1 1140 2.4/1.2 490

7.5 1075 7.8 690 3.5 1075 3.7 690 2.4 1140 2.8 740 2.6/1.3 1140 3.2/1.6 740

8.0 1125 8.3 840 4.0 1125 4.2 840 3.6 1140 3.8 1040 3.4/1.7 1140 3.6/1.8 1040

Power Code Description — Blower BD Models

Power

Code Electric Power

01 115/60/1 02 230/60/1 04 200/60/3 05 230/460/60/3 07 575/60/3 09 115/60/1 10 230/60/1 12 200/60/3 13 230/460/60/3 15 575/60/3 17 115/60/1 18 230/60/1 20 200/60/3 21 230/460/60/3 23 575/60/3 25 115/60/1 26 230/60/1 28 200/60/3 29 230/460/60/3 31 575/60/3 33 115/60/1 34 230/60/1 36 200/60/3 37 230/460/60/3 39 575/60/3 41 115/60/1 42 230/60/1 44 200/60/3 45 230/460/60/3 47 575/60/3 49 115/60/1 50 230/60/1 52 200/60/3 53 230/460/60/3 55 575/60/3

Whenever 200V/1φ, 230V/1φ, 200V3φ, or 230V/3φ is used, it is necessary to specify 200V/230V controls. Whenever 460V (or 575V) 3φ power is used, it is

➀

necessary to choose between 200V/230V or 460V (or 575V) controls. The 200V/230V controls will require the installer to provide a 460V (or 575V) to 230V (or 200V), 75VA step-down transformer [if the power exhauster accessory is used, the step-down transformer needs to be 250VA] with the motor star ter coil voltage being 230V (or 200V). The 460V (or 575V) controls require no additional transformer (unless the power exhauster accessory is used, then a 460V (or 575V) to 230V, 250VA step-down transformer is needed) with the motor starter coil voltage 24V.

PD units with 460V/3φ power supply are not listed by C.G.A.

➁

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

➂

manufacturer and Modine. All motors are totally enclosed and all single phase motors have built-in thermal overload protection.

BD50 BD75 BD100 BD125 BD150 BD175 BD200 BD250 BD300 BD350 BD400

HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive 1/4 182 1/4 184 1/4 200 1/4 188 1/4 191 – – 1/4 212 – – – – – – – – 1/4 182 1/4 184 1/4 200 1/4 188 1/4 191 – – 1/4 212 – – – – – – – – 1/4 182 1/4 184 1/4 200 1/4 188 1/4 191 – – 1/4 212 – – – – – – – – 1/4 182 1/4 184 1/4 200 1/4 188 1/4 191 – – 1/4 212 – – – – – – – – 1/4 194 1/4 196 1/4 208 1/4 189 1/4 197 – – 1/4 213 – – – – – – – – 1/4 183 1/4 185 1/4 90 1/3 188 1/3 191 1/3 95 1/3 212 1/3 203 3/4 205 1 107 1-1/2 105 1/4 183 1/4 185 1/4 90 1/3 188 1/3 191 1/3 95 1/3 212 1/3 203 3/4 205 1 107 1-1/2 105 1/4 183 1/4 185 1/4 90 1/3 188 1/3 191 1/3 95 1/3 212 1/3 203 3/4 205 1 107 1-1/2 105 1/4 183 1/4 185 1/4 90 1/3 188 1/3 191 1/3 95 1/3 212 1/3 203 3/4 205 1 107 1-1/2 105 1/4 195 1/4 186 1/4 92 1/3 189 1/3 197 1/3 96 1/3 213 1/3 204 3/4 205 1 107 1-1/2 180 1/3 1 1/3 185 1/3 90 1/3 202 1/3 95 1/2 96 1/3 102 1/2 204 1 205 1-1/2 105 – – 1/3 1 1/3 185 1/3 90 1/3 202 1/3 95 1/2 96 1/3 102 1/2 204 1 205 1-1/2 105 – – 1/3 1 1/3 185 1/3 90 1/3 202 1/3 95 1/2 96 1/3 102 1/2 204 1 205 1-1/2 105 2 210 1/3 1 1/3 185 1/3 90 1/3 202 1/3 95 1/2 96 1/3 102 1/2 204 1 205 1-1/2 105 2 210 1/3 61 1/3 186 1/3 92 1/3 211 1/3 96 1/2 96 1/3 101 1/2 204 1 205 1-1/2 180 2 210 1/2 61 1/2 186 1/2 92 1/2 211 1/2 96 3/4 192 1/2 101 3/4 205 1-1/2 106 1-1/2 100 – – 1/2 61 1/2 186 1/2 92 1/2 211 1/2 96 3/4 192 1/2 101 3/4 205 1-1/2 106 1-1/2 100 – – 1/2 61 1/2 186 1/2 92 1/2 211 1/2 96 3/4 192 1/2 101 3/4 205 1-1/2 106 1-1/2 100 3 111 1/2 61 1/2 186 1/2 92 1/2 211 1/2 96 3/4 192 1/2 101 3/4 205 1-1/2 106 1-1/2 100 3 111 1/2 61 1/2 186 1/2 92 1/2 211 1/2 96 3/4 192 1/2 101 3/4 205 1-1/2 108 1-1/2 210 3 111 3/4 61 1/2 187 1/2 91 3/4 199 3/4 38 1 192 3/4 16 1 205 – – – – – – 3/4 61 1/2 187 1/2 91 3/4 199 3/4 38 1 192 3/4 16 1 205 – – – – – – 3/4 61 1/2 187 1/2 91 3/4 199 3/4 38 1 192 3/4 16 1 205 2 108 2 210 5 207 3/4 61 1/2 187 1/2 91 3/4 199 3/4 38 1 192 3/4 16 1 205 2 108 2 210 5 207 3/4 61 1/2 187 1/2 91 3/4 199 3/4 38 1 192 3/4 16 1 205 2 108 2 210 5 207

– – 3/4 187 3/4 91 1 190 1 38 1-1/2 193 1 16 1-1/2 105 – – – – – – – – 3/4 187 3/4 91 1 190 1 38 1-1/2 193 1 16 1-1/2 105 – – – – – – – – 3/4 187 3/4 91 1 190 1 38 1-1/2 193 1 16 1-1/2 105 3 111 3 111 – – – – 3/4 187 3/4 91 1 190 1 38 1-1/2 193 1 16 1-1/2 105 3 111 3 111 – – – – 3/4 187 3/4 91 1 190 1 38 1-1/2 198 1 16 1-1/2 180 3 111 3 111 – – – – 1 91 1 91 1-1/2 201 – – – – 1-1/2 105 – – – – – – – – – – 1 91 1 91 1-1/2 201 – – – – 1-1/2 105 – – – – – – – – – – 1 91 1 91 1-1/2 201 – – 2 80 1-1/2 105 2 108 – – 5 207 – – – – 1 91 1 91 1- 1/2 201 – – 2 80 1-1/2 105 2 108 – – 5 207 – – – – 1 91 1 91 1-1/2 209 – – 2 80 1-1/2 180 2 108 – – 5 207 – –

Heater Parts from ACF Greenhouses

MOTOR DATA

➀ ➂ (see page 25)

Motor Data and Total Unit Power Requirements – Blower BD Models

Voltage 115/60/1 230/60/1 200/60/3 230/460/60/3 575/60/3

Mtr. Mtr. Total Total Mtr. Mtr. Total Total Mtr. Mtr. Total Total Mtr. Mtr. Total Total Mtr. Mtr. Total Total

HP Amps Rpm Amps Watts Amps Rpm Amps Watts Amps Rpm Amps Watts Amps Rpm Amps Watts Amps Rpm Amps Watts

1/4 1 1 3

5.4 1725 5.7 390 2.7 1725 2.9 390 1.2 1725 1.4 370 1.3/0.7 1725 1.6/0.8 370 0.6 1725 0.7 370

5.0 1725 5.3 410 2.5 1725 2.7 410 1.9 1725 2.1 400 1.6/0.8 1725 1.8/0.9 400 0.6 1725 0.7 400

8.5 1725 8.8 600 3.8 1725 4.0 600 2.3 1725 2.5 600 2.6/1.3 1725 2.8/1.4 600 0.9 1725 1.0 600

11.0 1725 11.3 870 5.5 1725 5.7 870 2.9 1725 3.1 840 3.0/1.5 1725 3.2/1.6 840 1.1 1725 1.2 840

13.4 1725 13.7 1080 6.7 1725 6.9 1080 4.0 1725 4.2 1100 3.8/1.9 1725 4.0/2.0 1100 1.5 1725 1.6 1100

-1/2

15.4 1725 15.7 1490 7.7 1725 7.9 1490 5.2 1725 5.4 1500 5.2/2.6 1725 5.4/2.7 1500 1.9 1725 2.0 1500 2 3 5

- - - - - - - - 6.8 1725 7.1 1950 6.6/3.3 1725 6.8/3.4 1950 2.3 1725 2.4 1950

- - - - - - - - 10.6 1725 10.8 3300 8.8/4.4 1725 9.0/4.5 3300 4.0 1725 4.1 3300

- - - - - - - - 14.3 1725 14.5 4400 13.2/6.6 1725 13.4/6.7 4400 5.2 1725 5.3 4400

Blower Drive Numbers

Blower Sheave Motor Sheave

Drive Belt No. Max.

No. Browning Pitch Dia. Bore Pitch Dia. Bore

C1 A29 4 3/4 2.9 1/2 C16 A48 8 1 2.9 5/8 C38 A41 6 3/4 2.9 5/8 C61 A30 4 3/4 2.9 5/8 C80 A45 7 3/4 4.4 7/8 C90 A35 6 3/4 2.9 1/2 C91 A33 4 3/4 2.9 5/8 C92 A36 6 3/4 2.9 5/8 C95 A42 7 3/4 2.9 1/2 C96 A43 7 3/4 2.9 5/8

C100 A50 8 1 4.4 5/8 C101 A50 9 1 2.9 5/8 C102 A49 9 1 2.9 1/2 C105 A54 10 1 4.4 5/8 C106 A52 9 1 4.4 5/8 C107 A45 6 1 2.9 5/8 C108 A52 9 1 4.4 7/8 C111 A52 8 1 4.4 1-1/8 C180 A54 10 1 4.4 7/8 C182 A36 8 3/4 2.9 1/2 C183 A33 6 3/4 2.9 1/2 C184 A43 10 3/4 2.9 1/2 C185 A37 7 3/4 2.9 1/2 C186 A38 7 3/4 2.9 5/8 C187 A35 5 3/4 2.9 5/8

Drive Belt No. Max.

No. Browning Pitch Dia. Bore Pitch Dia. Bore

C188 A38 7 3/4 2.9 1/2 C189 A39 7 3/4 2.9 5/8 C190 A35 4 3/4 2.9 5/8 C191 A49 11 3/4 2.9 1/2 C192 A40 5 3/4 2.9 5/8 C193 A47 8 3/4 4.4 5/8 C194 A37 8 3/4 2.9 5/8 C195 A33 6 3/4 2.9 5/8 C196 A44 10 3/4 2.9 5/8 C197 A50 11 3/4 2.9 5/8 C198 A47 8 3/4 4.4 7/8 C199 A34 4 3/4 2.9 5/8 C200 A39 8 3/4 2.9 1/2 C201 A40 6 3/4 4.4 5/8 C202 A35 5 3/4 2.9 1/2 C203 A51 10 1 2.9 1/2 C204 A52 10 1 2.9 5/8 C205 A46 7 1 2.9 5/8 C207 A51 7 1 4.4 1-1/8 C208 A40 8 3/4 2.9 5/8 C209 A40 6 3/4 4.4 7/8 C210 A51 8 1 4.4 7/8 C211 A36 5 3/4 2.9 5/8 C212 A58 14 1 2.9 1/2 C213 A59 14 1 2.9 5/8

Blower Sheave Motor Sheave

Rating Plate Identification

MODEL IDENTIFICATION PLATE

SERIAL NUMBER MODEL NUMBER

01121010692

PD 150AE

Serial Number Designations

12 101 10 97

MOTOR SUPPLIER CODE 01 - Century 05 - Universal etc.

AN OR BLOWER

F SUPPLIER CODE 01 - Revcor 08 - Brookside etc.

ERIES IDENTITY NUMBER

Identifies which series of controls were furnished on the unit.

POWER CODE CONTROL CODE

EAR OF

Y MANUFACTURE 97 - 1997 98 - 1998 etc.

EEK OF

MANUFACTURE

10 - 10 25 - 25thweek of 1997 etc.

week of 1997

Model Number Designations

PD 150 A E M 01 30

PD - Propeller

Unit

BD - Blower

Unit

Input 150 - 150,000 Btu/hr input 175 - 175,000 Btu/hr input 250 - 250,000 Btu/hr input etc.

Heat Exchanger A - Aluminized S - Stainless Steel

Control Code 30 - Complete Control Code

descriptions are shown on page 27

Power Code 01 - Complete Power Code

descriptions 02 - are shown on page 25 etc.

M - Unit is equipped with 2-stage

or mechanical modulation

Ignition Type A – Standing Pilot E – Intermittent Pilot

Heater Parts from ACF Greenhouses

CONTROL OPTIONS

Propeller and Blower Unit Heaters – PD and BD Models ➀ ➁ ➂ ➃

Control System Description

Single-Stage, Standing Pilot, 100% Shut-Off – thermocouple. Pilot needs to be manually lit initially and stays lit.

Two-Stage, Standing Pilot, 100% Shut-Off – full rated input) and thermocouple. Pilot needs to be manually lit initially and stays lit.

Single-Stage, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry – combination gas control and an ignition control (continuous retry). Pilot is automatically lit on call for heat.

echanical Modulation with Automatic Pilot Ignition, 100% Shut-Off with Continuous Retry – modulating combination gas control and an ignition control (continuous retry). Pilot is automatically lit whenever there is power to the unit. Modulation range is between 50% and 100% fire; gas control shuts off below 50% fire. Available on BD models only.

wo-Stage, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry –

T gas control (which fires at 50% or 100% of full rated input) and an ignition control (continuous retry). Pilot is automatically lit only on call for heat.

➀ CGA approved 460V and 575V available on blower units only. ➁ All PD and BD models with two-stage or modulating gas controls require a Category II vent system. ➂ 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 or 14 amps @ 115V A.C.

➃ Whenever 200V/1φ, 230V/1φ, 200V3φ, or 230V/3φ is used, it is necessary to specify 200V/230V controls. Whenever 460V (or 575V) 3φ power is used, it is necessary to choose between 200V/230V

or 460V (or 575V) controls. The 200V/230V controls will require the installer to provide a 460V (or 575V) to 230V (or 200V), 75VA step-down transformer [if the power exhauster accessor y is used, the step-down transformer needs to be 250VA] with the motor star ter coil voltage being 230V (or 200V). The 460V (or 575V) controls require no additional transformer (unless the power exhauster accessory is used, then a 460V (or 575V) to 230V, 250VA step-down transformer is needed) with the motor star ter coil voltage 24V.

Electrical Details

Supply Transformer Transformer Control Transformer Motor Starter

Voltage by Modine by Others Voltage Gravity Vented Power Exhausted Coil Voltage

115V 200V 230V 460V

575V

X 115V – – – X 200/230V – – 200V X 200/230V – – 230V X 460V – 460V/230V,250VA 24V

X 575V – 575V/230V,250VA 24V

➀ 460V(575V)/200V transformer as an alternative is okay. Motor star ter coil then needs to be 200V also.

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.

or 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 from the time the thermostat called for heat the fan motor will start.

On systems utilizing control codes 30-33, 85, 86, 93 or 94, 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

Utilizes a two-stage gas control (which fires at 50% or 100% of

Utilizes a single-stage combination gas control and

Utilizes a single-stage

Utilizes a

Utilizes a two-stage combination

Control

Code No.

11 12 13 14 81 82 91 92

25 26 83 84

30 31 32 33 85 86 93 94

59 60 89 90

63 64 87 88

Service Voltage

115V

200/230V

460V 575V 115V

200/230V

460V 575V

115V

200/230V

115V

200/230V

115V

200/230V

460V 575V 115V

200/230V

460V 575V

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

Thermostat

Voltage

25V 25V 25V 25V 25V 25V 25V 25V

25V 25V 25V 25V

25V 25V 25V 25V 25V 25V 25V 25V

25V 25V 25V 25V

Optional Controls required by others

X 200/230V 460V/230V,75VA ➀ 460V/230V,250VA 230V ➀

X 200/230V 575V/230V,75VA ➀ 575V/230V,250VA 230V ➀

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.

wo-Stage Control Systems

The thermostat will start the unit with the combination gas control in the first stage (50% of normal input). If the thermostat senses a further drop in temperature the second stage (100% of normal input) 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.

echanical 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 50% 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.

Heater Parts from ACF Greenhouses

Type of

Gas

natural natural natural

natural propane propane propane propane

natural

natural propane propane

natural

natural propane propane propane propane

natural

natural propane propane

natural

natural propane propane

Warranty

Seller warrants its products to be free from defects in material and workmanship, EXCLUSIVE, HOWEVER, of failures attributable to the use of materials substituted under emergency conditions for materials normally employed. This warranty covers replacement of any parts furnished from the factory of Seller, but does not cover labor of any kind and materials not furnished by Seller, or any charges for any such labor or materials, whether such labor, materials or charges thereon are due to replacement of par ts, adjustments, repairs, or any other work done. This warranty does not apply to any equipment which shall have been repaired or altered outside the factory of Seller in any way so as, in the judgment of Seller, to affect its stability, nor which has been subjected to misuse, negligence, or operating conditions in excess of those for which such equipment was designed. This warranty does not cover the effects of physical or chemical properties of water or steam or other liquids or gases used in the equipment. BUYER AGREES THAT SELLER’S WARRANTY OF ITS PRODUCTS TO BE FREE FROM DEFECT IN MATERIAL AND WORKMANSHIP, AS LIMITED HEREIN, SHALL BE IN LIEU OF AND EXCLUSIVE OF ALL OTHER WARRANTIES, EITHER EXPRESS OR IMPLIED, WHETHER ARISING FROM LAW, COURSE OF DEALING, USAGE OF TRADE, OR OTHERWISE, ARE NO OTHER WARRANTIES, INCLUDING WARRANTY OF MERCHANTABILITY OR FITNESS FOR PURPOSE, WHICH EXTEND BEYOND THE PRODUCT DESCRIPTION CONFIRMED BY BUYER AND SELLER AS OF THE DATE OF FINAL AGREEMENT. This warranty is void if the input to the product exceeds the rated input as indicated on the product serial plate by more than 5% on gas-fired and oil-fired units, or if the product in the judgment of SELLER has been installed in a corrosive atmosphere, or subjected to corrosive fluids or gases, been subjected to misuse, negligence, accident, excessive thermal shock, excessive humidity, physical damage, impact, abrasion, unauthorized alterations, or operation contrary to SELLER’S printed instructions, or if the serial number has been altered, defaced or removed.

eat Exchangers

H For Seller’s non-separ rooftop units BUYER’S REMEDY FOR BREACH OF WARRANTY, EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW, IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER, ANY HEAT EXCHANGER WHICH SHALL, WITHIN TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN TEN YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN TEN YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN ONE HUNDRED TWENTY-SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST, BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE; EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER, BUYER’S REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER. FOR GAS-FIRED PRODUCTS INSTALLED IN HIGH HUMIDITY APPLICATIONS AND UTILIZING STAINLESS STEEL HEAT EXCHANGERS, BUYER’S REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO TEN YEARS FROM DATE OF SHIPMENT FROM SELLER. For Seller's Low Intensity Gas-Fired Infrared Heaters BUYER'S REMEDY FOR BREACH OF WARRANTY, EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW, IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER, ANY HEAT EXCHANGER WHICH SHALL, WITHIN FIVE YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN FIVE YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN 66 MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST, BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE; EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER, BUYER'S REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER.

eat Exchanger (Condensers)

H combustion gas-fired unit heaters and infrared heaters, and Burners and Sheet Metal for all products. BUYER’S REMEDY FOR BREACH OF WARRANTY, EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW, IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER, ANY HEAT EXCHANGER (CONDENSER) OR BURNER WHICH SHALL, WITHIN

ated combustion gas-fired unit heaters and packaged

for all Seller’s products except non-separ

HERE

ated

ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN EIGHTEEN MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST, BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE; EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER, BUYER’S REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER.

ll Other Components Excluding Heat Exchanger (Condenser), Burner, and

A Sheet Metal All Seller Heating Products except St. Paul Produced products, Packaged Rooftop Units, and High Intensity Gas-Fired Infrared Heaters BUYER’S REMEDY FOR BREACH OF WARRANTY, EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW, IS LIMITED TO REPAIR OR REPLACEMENT AT THE FACTORY OF SELLER, ANY PART OR PARTS WHICH SHALL, WITHIN TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST, BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE; EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER, BUYER’S REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER. St. Paul Produced Products, Packaged Rooftop Units, and High Intensity GasFired Infrared Heaters

BUYER’S REMEDY FOR BREACH OF WARRANTY EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW IS LIMITED TO REPAIR OR REPLACEMENT AT THE SELLER’S OPTION ANY PART OR PARTS WHICH SHALL WITHIN A PERIOD OF ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN 18 MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST, BE RETURNED TO SELLER WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE EXAMINATION OF THE SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE.

BUYER AGREES THAT IN NO EVENT WILL SELLER BE LIABLE FOR COSTS OF PROCESSING, LOST PROFITS, INJURY TO GOODWILL, OR ANY OTHER CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND RESULTING FROM THE ORDER OR USE OF ITS PRODUCT, WHETHER ARISING FROM BREACH OF WARRANTY, NONCONFORMITY TO ORDERED SPECIFICATIONS, DELAY IN DELIVERY, OR ANY LOSS SUSTAINED BY THE BUYER.

ancellation – Inspection – Rejection

C Orders for material or equipment are not cancelable, either in whole or part, nor is material returnable for credit. Seller will replace any material or equipment not conforming to the product description as agreed upon by Buyer and Seller as of the data of shipment only if the Buyer notifies Seller, at the address on the Seller’s INVOICE, of the particular details of non-conformance or defect of such material of equipment, by written or electronic notice, either before or immediately upon delivery, and only if such nonconforming material or equipment is returned, sold, or otherwise disposed of in accordance with instructions of Seller. Buyer agrees to inspect all of the ordered material or equipment either before or upon delivery and waives all his rights to reject or refuse to accept any non-conforming material or equipment unless notice is given to Seller in the aforesaid time and manner. Buyer may inspect the ordered material at Seller’s plant in an area designated by Seller. Buyer agrees that the right of rejection of non-conforming material or equipment, as limited herein, and the right to replacement by Seller with material or equipment, as limited herein, and the right to replacement be Seller with material or equipment conforming to the ordered specifications, are exclusive of all other remedies provided by law. Written authorization must be issued by Seller before any material is returned to its plant.

overning Law

G It is agreed that the parties hereto intend that all questions as to validity, interpretation, and required performance arising out of this contract are to be governed by the laws of the State of Wisconsin (Uniform Commercial Code).

As Modine Manufacturing Company has a continuous product improvement program, it

reserves the right to change design and specifications without notice.

Commercial HVAC&R Division Modine Manufacturing Company

1221 Magnolia Avenue Buena Vista, Virginia 24416 Phone: 1.800.828.4328 (HEAT) Fax: 540.261.1903 (Service & Parts) www.modine.com

Heater Parts from ACF Greenhouses

Modine Manufacturing PD 30, PD 50, BD 50, PD 75, BD 75 Installation And Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual