Modine Manufacturing Bae Users Manual Pae Service

2015-02-09

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Page Count: 28

Contents Pages

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

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

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

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

Dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 & 15

Performance data . . . . . . . . . . . . . . . . . . . . . . . .13, 14 & 16-19

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

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

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21-24

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

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

Model identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

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

WARNING

Improper installation, adjustment, alteration, service or

maintenance can cause property damage, injury or death, and

could cause exposure to substances which have been

determined by various state agencies to cause cancer, birth

defects or other reproductive harm. Read the installation,

operating and maintenance instructions throroughly before

installing or servicing this equipment.

FOR YOUR SAFETY

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.

THIS MANUAL IS THE PROPERTY OF THE OWNER.

PLEASE BE SURE TO LEAVE IT WITH THE OWNER

WHEN YOU LEAVE THE JOB.

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.

APPROVED

GAS

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.

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).

July, 1996

INSTALLATION AND SERVICE MANUAL

gas-fired unit heaters

models PAE and BAE

6-551.31

Part 5H70880A (Rev. AA)

Heater Parts from ACF Greenhouses

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.

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

gas-fired 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 inches and from the sides 18 inches; for sizes 30-100 from the

top is 1 inch and from the vent connector 2 inches; for sizes 125-

300 from the top is 2 inches and from the vent connector 3 inches;

and for sizes 350 & 400 from the top is 3 inches and from the vent

connector 6 inches.

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 1A. 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 venter.

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

(PAE) 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.

INSTALLATION

SPECIAL PRECAUTIONS

Figure 1A

Hinged Bottom for Burner Service

*(See Dimension "C" Table 6, page 12)

*MIN.

Heater Parts from ACF Greenhouses

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/CGA-B149.2, “Installation

Code for Propane Burning Appliances and Equipment.”

1. Alliinstallation and service of these units must be performed by a

qualified installation and service agency only as defined in ANSI

Z223.1, latest edition or in Canada by a licensed gas fitter.

2. This unit is certified by A.G.A. and by C.G.A., with the controls

furnished. For replacement parts, submit the complete model and

serial numbers shown on rating plate on the unit. Modine reserves

the right to substitute other authorized controls as replacements.

3. Unit is balanced for correct performance. Do not alter fan or operate

motors at reduced speed.

4. Information on controls is supplied separately.

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

gases.

Locating Unit Heaters

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.

Combustion Air Requirements

Units installed in tightly sealed buildings or confined spaces should be

provided with two permanent openings, one near the top of the

enclosure and one near the bottom. Each opening should have a free

area of not less than one square inch per 1,000 BTU per hour of the

total input rating of all units in the enclosure, freely communicating with

interior areas having, in turn, adequate infiltration from the outside.

Unit Suspension

Be sure the means of suspension is adequate to support the weight of the

unit. (See page 12 for unit weights.) For proper operation, the unit must be

installed in a level horizontal position. Clearances to combustibles as

specified above must be strictly maintained. Do not install standard unit

heaters above the maximum mounting height shown in Table 7 on page

13, or below seven feet from the bottom of the unit to the floor.

On all propeller units, except the PAE 300, PAE 350 and PAE 400, two

tapped holes (3/8-16) are located in the top of the unit to receive ceiling

hangers.

Units with two point suspension, models PAE30 through PAE250,

incorporate a level hanging feature. Depending on what options and

accessories are being used, the heater may not hang level as received

from the factory. Do not hang heaters with deflector hoods until referring

to the “installation manual for deflector hoods” and making the

recommended preliminary adjustments on the heater. These preliminary

adjustments need to be made with the heater resting on the floor.

PAE30 through PAE250 units without deflector hoods that do not hang

level after being installed, can be corrected in place. Simply remove

both outer side panels (screws to remove are on back flange of side

panel) and you will see the (adjustable) mounting brackets (Fig. 2).

Loosen the set screws holding the mounting brackets in place and using

a rubber mallet or something similar, tap the heater into a position

where it does hang level. Re-tighten set screws and replace the outer

side panels

The PAE 300, PAE 350 and PAE 400 have four mounting holes. On all

blower units, except the PAE 300, PAE 350 and PAE 400, two tapped

holes are provided in the top of the unit and two holes in the blower

support bracket. The PAE 300, PAE 350 and PAE 400 have four tapped

holes in the top of the unit and two in the blower support bracket for

mounting. To assure that flames are directed into the center of heat

exchanger tubes, unit must be supported in a vertical position, with

suspension hangers “UP.” Check with a level. This is important to the

operation and life of unit.

Note: Pipe hanger adapter kits, as shown in Figure 2, are available as

accessories from Modine. The hardware allows for pipe caps to be

secured into the top of the unit heater with machine screws (as

illustrated - machine screws are 3/8 - 16 x 1.75 UNC-2A THD). The pipe

caps can then accommodate 3/4" NPT pipe for mounting. Three

different kits are available with either 2, 4, or 6 adapters per kit. See

price sheet to determine proper kit.

INSTALLATION

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.

CAUTION

For all sizes, minimum clearance to combustibles from the

bottom is 12" and from the sides 18"; for PAE sizes 30-100

from the top is 1" and from the vent connector 2"; for PAE

sizes 125-300 from the top is 2" and from the vent connector

3"; for PAE sizes 350 & 400 from the top is 3" and from the

vent connector 6”; and for all BAE sizes from the top and vent

connector is 6".

Allow at least 12" at the rear, or 6" beyond the end of the

motor (whichever is greater), to provide ample air for

combustion and for proper operation of fan. Provide

clearance for opening of the hinged bottom for servicing –

SEE FIGURE 1A.

Figure 2

Adjustable Mounting Brackets/Suspension Methods

REMOVE SIDE PANELS TO

ADJUST MOUNTING

BRACKETS

SUSPENSION WITH PIPE

ADAPTER KIT

Heater Parts from ACF Greenhouses

INSTALLATION

NOTE: Avent is the vertical passageway used to convey flue gases from the

unit or the vent connector to the outside atmosphere. A vent connector is

the pipe which connects the unit to a vent or chimney.

Venting Instructions

1. Using Table 1, determine the venting system category of the unit to be

installed.

2. Using Table 2, determine the venting requirements for the category

determined above. The installation of a Category II unit must conform to

these requirements (detailed in following sections) in addition to those

listed below.

Select size of vent pipe to fit vent pipe connection at rear of appliance (see

Page 12, Dimension J). (Exception: All PAE/BAE 50 models with two-stage

or modulating controls must use a 5 inch vent.) Do not use a vent pipe

smaller than the vent pipe connection on the unit. Vent pipe should be

galvanized steel or other suitable corrosion-resistant material. Follow the

National Fuel Gas Code for minimum thicknesses of vent material; minimum

thicknesses for vent connectors vary depending on pipe diameter.

4. Limit length of horizontal runs to 75% of vertical height. Install with a

minimum upward slope from unit of 1/4 inch per foot and suspend

securely from overhead structure at points no greater than 3 feet apart.

For best venting, put as much vertical vent as close to the unit as

possible. Fasten individual lengths of vent together with at least three

corrosion-resistant sheet-metal screws.

5. Avoid venting through unheated space when possible. When venting

does pass through an unheated space, Modine recommends the use of

Type B double wall vent. If single wall vent is used, insulate vent runs

greater than 5 feet to minimize condensation. Use insulation that is

noncombustible with a rating of not less than 350°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

(see page 2, section 12 for allowable reductions). For double wall vent

pipe, maintain clearances listed on vent pipe (Category I and II units).

The minimum distance from combustible material is based on the

combustible material surface not exceeding 160°F. Clearance from the

vent connector, vent, or top of unit may be required to be greater than

the minimum clearance if heat damage other than fire (such as material

distortion or discoloration) may occur.

7. Where the vent passes 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.

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).

ADDITIONAL VENTING REQUIREMENTS FOR CATEGORY II UNITS

Vent system must provide for drainage of condensate. At the low point of the

vent system, install a tee fitting with a connector and attach flexible tubing,

minimum 3/8 inch I.D., and run to a drain.

ADDITIONAL VENTING REQUIREMENTS FOR VENTING INTO AN

EXISTING MASONRY CHIMNEY OR COMMON VENT (CATEGORY I and II

UNITS ONLY)

1. Do not vent a Category 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

10' MIN.

TO WALL OR ADJOINING BUILDING

MIN.

ROOF FLASHING

USE THIMBLE

THROUGH CEILING

APPROVED

TERMINAL

1'0"

SLOPE 1/4" TO

THE FOOT

UNIT

1/4"

DRIP LEG WITH

CLEANOUT CAP

*SIZE ACCORDING TO EXPECTED SNOW DEPTH.

Figure 3

Unit Heater Venting

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.

Model Number Gas Controls Category

Single-Stage I

PAE 30 Two-Stage II

Single-Stage I

Two-Stage II

PAE/BAE 50-100 Modulating II

PAE/BAE 125-400 All I

Table 1

PAE/BAE Venting System Category

Category Description Venting

Requirements

Negative vent pressure Follow standard

INon-condensing venting requirements.

Negative vent pressure Condensate must be

II Condensing drained.

Positive vent pressure Vent must be gastight.

III Non-condensing

Positive vent pressure Vent must be liquid and

Condensing gastight. Condensate

IV must be drained.

Table 2

ANSI Unit Heater Venting Requirements

Heater Parts from ACF Greenhouses

Piping

1. Installation of piping must be in accordance with local

codes, and ANSI Z223.1, “National Fuel Gas Code,” or

CAN/CGA-B149 in Canada. Do not use flexible connectors.

2. Piping to units should conform with local and national

requirements for type and volume and gas handled, and

pressure drop allowed in the line. Refer to Table 4, to

determine the cubic feet per hour (cfh) for the type of gas

and size of unit to be installed. Using this cfh value and the

length of pipe necessary, determine the pipe diameter from

Table 1. Where several units are served by the same main,

the total capacity, cfh, and length of main must be

considered. Avoid pipe sizes smaller than 1/2”. Table 1

allows for the usual number of fittings with a 0.3” W.C.

pressure drop. Where the gas supplied has a specific

gravity other than 0.60, apply the multiplying factor as given

in Table 2.

3. After threading and reaming the ends, inspect piping and

remove loose dirt and chips.

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.

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. In 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 high pressure

regulator and unit control string.

15. 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 shutoff

valve.

GAS

SUPPLY LINE

GAS

SUPPLY LINE

GROUND

JOINT

UNION

MANUAL

SHUT-OFF

VALVE

MIN.

SEDIMENT

TRAP

PLUGGED

1/8" NPT TEST

GAGE CONNECTION

CONTROLS

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.

INSTALLATION

Figure 4

Recommended Piping

to Controls

Table 2

Specific Gravity Conversion Factors

Multiplying factors to be sued with table 1 when the specific

gravity of gas is other than 0.60.

Table 1

Gas Pipe Capacities

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

NATURAL 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

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

15 76 218 440 750 1220 2480 6500 13880 38700 79000

3073 152 285 590 890 1650 4700 9700 27370 55850

45 44 124 260 435 700 1475 3900 7900 23350 45600

60 50 105 190 400 610 1150 3250 6800 19330 39500

75 97 200 345 545 1120 3000 6000 17310 35300

9088 160 320 490 930 2600 5400 15800 32250

105 80 168 285 450 920 2450 5100 14620 29850

120 158 270 420 860 2300 4800 13680 27920

150 120 242 380 710 2000 4100 12240 25000

180 128 225 350 720 1950 4000 11160 22800

210 205 320 660 1780 3700 10330 21100

240 190 300 620 1680 3490 9600 19740

270 178 285 580 1580 3250 9000 18610

300 170 270 545 1490 3000 8500 17660

450 140 226 450 1230 2500 7000 14420

600 119 192 380 1030 2130 6000 12480

Diameter of Pipe - Inches

Length of

Pipe in Ft.

Heater Parts from ACF Greenhouses

Wiring

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. For optional wiring diagrams

see Bulletin 6-443.

The power to these unit heaters should be protected with a

circuit breaker. Units for use with single-phase electric power,

should be provided with a manual motor starter, having properly

sized overload protection. Units for use with three-phase

electric power must be provided with a motor starter having

properly sized overload protection.

Location of thermostat should be determined by heating

requirements and be mounted on an inside wall about 5' above

floor level where it will not be affected by heat from the unit or

other sources, or drafts from frequently opened doors. See

instructions packed with thermostat.

Installation of Blower Models (BAE UNITS)

Attachment of Field Installed Ductwork, Blower

dels (BAE) 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

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.

1. Provide uniform air distribution over the heat exchanger.

Use turning vanes where required. See figures below.

2. Provide removable access panels in the ductwork on the

downstream side of the unit heater. These openings should

be large enough to view smoke or reflect light inside the

casing to indicate leaks in the heat exchanger and to check

for hot spots on exchanger due to poor air distribution or

lack of sufficient air.

If ductwork is connected to the rear of the unit use Modine

blower enclosure kit or if using field designed enclosure maintain

dimensions of blower enclosure as shown on page 12.

BAFFLE

12"

MIN.

BAFFLE

TURNING

VANES

12" MIN.

3" MAX.

TURNING

VANES

3" MIN.

12"

MIN.

3" MAX.

TURNING

VANES

12"

BAFFLE

12"

MIN.

12"

MIN.

TURNING

VANES

INSTALLATION

Recommended Installations

SIDE VIEW SIDE VIEW TOP VIEW

Dimension “B” Should Never

Be Less than 1/2 of “A”

FED

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).

CAUTION

Proper air flow and distribution, across the heat exchanger

must be provided to prevent early failure of the blower unit

heater.

CAUTION

Do not attempt to attach ductwork of any kind to propeller

PAE models.

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

Installation of Blower Models (BAE 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 BAE 350 unit,

operating with no external static pressure, that is, no duct work,

nozzles, etc., and is to deliver an air volume of 6481 cfm (cfm =

cubic feet of air per minute) requires that the unit be supplied

with a 5 hp motor, a C116 drive, and the drive sheave must be

set at 3 turns open to achieve a blower speed of 940 rpm (see

performance table for units with or without blower enclosure,

page 18). See "Blower Adjustments" on page 8 for setting of

drive pulley turns open.

If a blower unit is to be used with ductwork or nozzles, etc., the

total external static pressure under which the unit is to operate,

and the required air flow must be known before the unit can be

properly adjusted. Any device added externally to the unit, and

which the air must pass through, causes a resistance to air flow.

This resistance is called pressure loss. The total of the pressure

losses must be determined before adjusting the blower speed.

If Modine filters are used, the expected pressure loss through

the filters is included in the performance data on page 19. If

Modine supplied discharge nozzles are used, the expected

pressure drop of the nozzles can be found footnoted at the

bottom of page 14. If filters, nozzles or ductwork are to be used

with the unit, and they are not supplied by Modine, the design

engineer or installing contractor must determine the pressure

loss for the externally added devices or ductwork to arrive at the

total external static pressure under which the unit is to operate.

Once the total static pressure and the required air flow are

known, the operating speed of the blower can be determined

and the correct motor sheave adjustments made. As an

example, let's say, a model BAE 350 is to be used with a

Modine supplied blower enclosure and Modine supplied filters

attached to someone else's ductwork. The unit is to move 6481

cfm or air flow against an external static pressure of 0.2" W.C.

Entering the performance table on page 19 (Blower models with

filters) for a BAE 350, at 6481 cfm and 0.2" W.C. static

pressure, it is seen that the unit will require a 5 hp motor using a

C116 drive, and the motor sheave should be set at .5 turns

open to achieve a blower speed of 1055 rpm. You can see this

example differs from similar conditions in paragraph 2 by the

number of turns open and a higher rpm, which is needed to

overcome the added external static pressure from the filters.

To Install (Figure 5):

1. Remove and discard the motor tie down strap and the

shipping block beneath the belt tension adjusting screw (Not

used on all models.)

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 28 for model number

nomenclature) and matching that number with those shown

on page 25. From the listing, the drive number can be

determined.

8. Blower sheave and motor sheave should be measured to

assure correct drive is on unit. Refer to page 26 for drive

sizes.

Figure 5

Blower Model Installation

MOTOR MOUNTING

BRACKET MOTOR SHEAVE

(MOVEABLE FACE TO OUTSIDE)

OIL CUPS

MOTOR

ADJUSTMENT

SCREW

TIE DOWN STRAP

& BLOCK FOR

SHIPPING ONLY

BLOWER

SHEAVE

Heater Parts from ACF Greenhouses

TOWARD MOTOR

SET SCREW

ADJUSTABLE HALF

OF SHEAVE

3/4" DEFLECTION

WITH 5# FORCE

INSTALLATION

Figure 6

Motor Sheave Adjustment

Figure 6a

Belt Tension Adjustment

Blower Adjustments

Following electrical connections, check blower rotation to assure

blow-through heating. If necessary interchange wiring to reverse

blower rotation. Start fan motor and check blower sheave RPM

with a hand-held or strobe-type tachometer. RPM should check

out with the speeds listed in Performance Data shown on pages

18 and 19. A single-speed motor with an adjustable motor

sheave is supplied with these units. If blower fan speed changes

are required, adjust motor sheave as follows:

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

or unit may cycle on limit (overheat) control.

1. Shut-off power before making blower speed adjustments.

Refer to Determining Blower Speed on page 7 and to Blower

Drive Selection on pages 18 and 19 to determine proper

blower RPM.

2. Loosen belt and take belt off of motor sheave.

3. Loosen set screw on outer side of adjustable motor sheave

(see Figure 6).

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.

Heater Parts from ACF Greenhouses

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.

Lighting Instructions (also on unit)

For Units with Standing Pilot

1. Set thermostat to lowest setting. Move gas control knob (or

lever) to off and wait 5 minutes.

2. Move gas control knob to PILOT (or move gas control lever

to SET) and depress reset button while lighting the pilot and

hold for 1 minute after pilot is lit.

3. Move gas control knob (or lever) to ON.

4. Set thermostat to desired setting.

For Units with Intermittent Pilot

1. Set thermostat to lowest setting. Move gas control knob (or

lever) to off and wait 5 minutes.

2. Move gas control knob (or lever) to ON.

3. Set thermostat to desired setting (pilot and main burner will

light automatically when thermostat calls for heat).

Shut Down Instructions

Turn off power and close manual gas valve.

After Initial Start Up

1. Check pilot flame adjustment as discussed below.

2. Check gas piping for leaks with a soap bubble solution to

insure safe operation.

3. Check gas input rate to assure proper gas flow and

pressure.

Pilot 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.

Natural

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.

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.

OPERATION

Figure 7

Correct Pilot Flame

Figure 8

Typical combination gas control

GAS CONTROL KNOB

INLET

PRESSURE TAP

PRESSURE REGULATOR

ADJUSTMENT SCREW

(UNDER CAP SCREW)

ELECTRICAL

CONNECTION

TERMINALS

OUTLET

PRESSURE

TAP

OUTLET

PILOT TUBING

CONNECTION

PILOT ADJUSTMENT

SCREW

RESET BUTTON

INLET

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 yellow-

tipped flames disappear. See Figure 14. To decrease primary

air move the manifold closer to the mixer tubes until flames no

longer lift from burner ports, but being careful not to cause

yellow tipping. Retighten manifold mounting screws after

adjustment.

Propane Gas Flame Control

Adjustable primary air shutters are attached to the orifices on

the gas manifold for units equipped for propane gas operation.

See Figure 15. An optimum flame will show a slightly yellow tip.

Prior to flame adjustment, operate unit heater with casing

closed for at least five minutes. Then lower hinged bottom and

adjust primary air shutters. Loosen wing screws and push

shutters forward to reduce primary air until yellow flame tips

appear. Then increase primary air until yellow tips diminish to

just a slightly yellow tip and a clean blue flame with a well-

defined inner cone appears.

It may also be necessary to adjust the manifold position in

addition to adjusting air shutters to obtain proper flame. Follow

the instructions under "Natural Gas Flame Control" for adjusting

the manifold.

Input Adjustments

The gas pressure regulator (part of the combination gas control)

is adjusted at the factory for average gas conditions. It is

important that gas be supplied to the heater in accordance with

the input rating stamped on the serial plate. Actual input should

be checked and necessary adjustments made after the heater is

installed. Over-firing, a result of too high an input, reduces the

life of the unit, and increases maintenance. Under no

circumstances should the input exceed that shown on the rating

plate.

Input can be determined by the meter-timing method provided

other gas equipment connected to the meter is off during the

test. If this is not possible, use the pressure method.

(A) Meter Timing Method

1. Shut off all other gas-burning equipment, including other

pilot lights served by the gas meter.

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

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

useful:

F1 = 3600 C/T

F2 = 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 Btu per cu. ft.

Natural 1000-1150

Propane 2500

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

Table 5 for model being tested, locate the combination gas

control and pressure regulator adjustment screw (see Figure

8). Remove the cap screw from the pressure regulator and

make one clockwise turn at a time on the adjustment screw

until the correct time is obtained. If the seconds are less (input

greater) than indicated in the table, follow the same procedure

in a counter-clockwise direction.

If the correct number of seconds cannot be obtained check

orifice size. Correct orifices can be obtained from Modine

Manufacturing Company, Buena Vista, Virginia. When

requesting orifices, state type of gas, heating value, and its

specific gravity. Also give model number of unit.

For example, if the input to the heater is 100,000 Btuh and the

heating value of the gas is 1000 Btu per cu. ft., then, by the

second formula, the input is 100 cu. ft. per hr. Table 4 indicates the

time for one revolution of various size meter dials with various

input rates. If a 1 cu. ft. meter dial is used, we proceed down the

cu. ft. column to 100 cu. ft. per hr. and then horizontally to the left

to determine a time of 36 seconds for one revolution of the dial.

Similarly, if the 1/2 cu. ft. dial is used, we determine a time of 18

seconds for one revolution at the required input.

(B) Pressure Method

The pressure method determines input by measuring the

pressure of the gas in the manifold in inches of water.

1. Determine correct manifold pressure from Table 4.

2. Locate combination gas control.

3. Move gas control knob (or lever) to off.

4. Remove the 1/8" pipe plug in outlet pressure tap in

combination gas control (see Figure 9) and attach water

manometer or “U” tube which is at least 12" high.

5. Follow lighting instructions and turn thermostat up to get unit

to fire.

6. If pressure as indicated by “U” tube is less than 1/2" higher

or lower than indicated in Table 4, adjust regulator as

described under “Meter-Timing Method,” Step 3.

If pressure as indicated by “U” tube is more than 1/2" higher

or lower than indicated in Table 4, check inlet pressure at

unit. The inlet pressure should be 6"-7" W.C. pressure on

natural gas and 12"-14" W.C. on propane gas.

After adjustment move gas control knob (or lever) to off and

replace 1/8" pipe plug. With the plug in place, follow the lighting

instructions to put unit back in service.

CAUTION

Check the gas inlet pressure at the unit upstream of the

combination gas control. The inlet pressure should be 6"-7"

W.C. on natural gas or 12"-14" W.C. on propane. If inlet

pressure is too high, install an additional pressure regulator

upstream of the combination gas control.

Important – Inlet pressure and manifold pressure must be

checked with unit in operation when making final adjustments.

Checking Input Rate

Heater Parts from ACF Greenhouses

100

120

180

150

129

112

100

360

300

257

225

200

180

164

150

138

129

120

103

720

600

514

450

400

360

327

300

277

257

240

206

180

160

144

131

120

103

1800

1500

1286

1125

1000

900

818

750

692

643

600

514

450

400

360

327

300

257

225

200

180

150

CHECKING INPUT RATE

Figure 9

Table 5

Orifice Drill Sizes with Decimal Equivalents

Dia. Dia.

Drill Decimal Drill Decimal

Size Equivalent Size Equivalent

20 .1610 37 .1040

22 .1570 39 .0995

23 .1540 40 .0980

25 .1495 42 .0935

26 .1470 43 .0890

27 .1440 45 .0820

28 .1405 52 .0635

30 .1285

Main Burner Orifices

Table 4

Manifold Pressure & Gas Consumption *

Figure 10

Dials of Typical Gas Meter

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

PAE 30 Sec/cu. ft. 126 300 1

Orifice Drill Size 37 52

CFH 47.6 20.0

PAE 50 Gal/Hr. Propane – .55

BAE 50 Sec/cu. ft. 76 180 1

Orifice Drill Size 30 45

CFH 71.4 30.0

PAE 75 Gal/Hr. Propane – .82

BAE 75 Sec/cu. ft. 50 120 1

Orifice Drill Size 20 37

CFH 95.2 40.0

PAE 100 Gal/Hr. Propane – 1.15

BAE 100 Sec/cu. ft. 38 90 2

Orifice Drill Size 30 45

CFH 119.0 50.0

PAE 125 Gal/Hr. Propane – 1.43

BAE 125 Sec/cu. ft. 30 72 2

Orifice Drill Size 25 42

CFH 138.1 58.0

PAE 145 Gal/Hr. Propane – 1.64

BAE 145 Sec/cu. ft. 26 62 3

Orifice Drill Size 30 45

CFH 166.7 70.0

PAE 175 Gal/Hr. Propane – 1.86

BAE 175 Sec/cu. ft. 22 51 3

Orifice Drill Size 27 43

CFH 190.5 80.0

PAE 200 Gal/Hr. Propane – 2.19

BAE 200 Sec/cu. ft. 19 45 3

Orifice Drill Size 23 40

CFH 214.3 90.0

PAE 225 Gal/Hr. Propane – 2.46

BAE 225 Sec/cu. ft. 17 40 4

Orifice Drill Size 28 43

CFH 238.1 100.0

PAE 250 Gal/Hr. Propane – 2.74

BAE 250 Sec/cu. ft. 15 36 4

Orifice Drill Size 25 42

CFH 285.7 120.0

PAE 300 Gal/Hr. Propane – 3.29

BAE 300 Sec/cu. ft. 13 30 5

Orifice Drill Size 26 43

CFH 333.3 140.0

PAE 350 Gal/Hr. Propane – 3.84

BAE 350 Sec/cu. ft. 11 26 5

Orifice Drill Size 22 39

CFH 381.0 160.0

PAE 400 Gal/Hr. Propane – 4.38

BAE 400 Sec/cu. ft. 9 23 6

Orifice Drill Size 23 40

Table 3

Meter-Timing Gas

(Time required for one revolution is charted for various size

meter dials and various rates of gas input in cu. ft. per hour. To

convert to Btuh, multiply by the heating value of the gas used.)

Time for 1

Revolution,

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

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

*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.

“U” TUBE

MANOMETER

LIGHTING

INSTRUCTION &

RATING PLATE

GAS

DESIGNATION

PLATE

PILOT TUBING

OUTLET

PRESSURE TAP

COMBINATION

GAS CONTROL

CONTROL

TRANSFORMER

FAN MOTOR

JUNCTION BOX

FAN GUARD

ECO (ON UNITS

SO EQUIPPED.

SEE NOTE 5 ON

PAGE 16.)

Pilot Orifice Identity Numbers

Pilot Burner Identity No. Identity No.

Manufacturer Natural Gas Propane Gas

Honeywell HCR-18 or BCR-18 HBR or BBR-12 or 11

Robertshaw

Johnson 7715 4710

1 8

①

1 O

①

①As number appears on top of pilot orifice.

Heater Parts from ACF Greenhouses

Standard Model Number

PAE 30 PAE 50 PAE 75 PAE 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 PAE 350 PAE 400

Btu/Hr. Input 30,000 50,000 75,000 100,000 125,000 145,000 175,000 200,000 225,000 250,000 300,000 350,000 400,000

Btu/Hr. Output 24,300 40,000 60,000 80,000 100,000 116,000 140,000 160,000 180,000 200,000 240,000 280,000 320,000

Entering CFM 440 740 1130 1440 1850 2400 2500 3000 3300 4100 4400 5000 5900

Outlet Velocity 515 495 664 616 789 893 713 852 832 1024 960 1094 1094

Air Temp. Rise °F 51 50 49 51 50 46 52 49 51 45 51 52 50

Mounting Hgt. 7 8 11 10 13 17 13 16 15 20 18 20 21

(Max. Ft.) ①

Heat Throw Ft. ①25 27 39 36 47 59 45 55 54 72 64 71 74

Horsepower 1/40 1/40 1/30 1/30 1/15 1/6 1/6 1/6 1/6 1/3 1/3 3/4 3/4

Amp Draw 1.3 1.3 2.3 2.3 2.7 3.1 3.1 3.1 3.1 5.7 5.7 9.1 9.1

RPM 1550 1550 1050 1050 1050 1075 1075 1075 1075 1075 1075 1140 1140

Type Shaded Shaded Shaded Shaded Shaded Perm. Perm. Perm. Perm. Perm. Perm. Perm. Perm.

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

DIMENSIONS/PERFORMANCE – PAE

D (OPENING)

KWX

L - Approx

MIN. DISTANCE

TO WALL IS L + 6"

J VENT PIPE

(MIN. DISTANCE TO WALL)

For all sizes, minimum clearance to com-bustibles

from the bottom is 12 inches and from the sides 18

inches; for sizes 30-100 from the top is 1 inch and

from the vent con-nector 2 inches; for sizes 125-

300 from the top is 2 inches and from the vent

connector 3 inches; and for sizes 350 and 400 from

the top is 3 inches and from the vent connector 6

inches. Also, allow at least 12 inches at the rear, or

6 inches beyond the end of the motor (whichever is

greater), to provide ample air for combustion and

for proper operation of fan.

Clearance at bottom should equal “C” dimen-sion

for each model number.

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

Performance — PAE

Motor

Data

➁

Dimension Model Number

Symbol PAE 30 PAE 50 PAE 75 PAE 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 PAE 350 PAE 400

A12-7/8 17-1/4 19-1/4 21 21 23-1/2 25-5/8 25-5/8 28-5/8 28-5/8 33-5/8 33-5/8 40

B24-1/4 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 40-1/4 40-1/4

C14-3/4 20 20 22 22 22 25 25 25 25 25 25 25

D10-7/16 14-13/16 16-13/16 18-9/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 26-3/16 31-3/16 31-3/16 37-1/2

E13 16 16 20 20 20 24 24 24 24 24 24 24

F8-7/8 11-1/2 11-1/2 12-1/2 12-1/2 12-1/2 14-1/2 14-1/2 14-1/2 14-1/2 – – –

G1-7/8 2-5/8 2-5/8 3-3/8 3-3/8 3-3/8 4-1/8 4-1/8 4-1/8 4-1/8 4-1/4 4-1/4 4-1/4

H9-1/4 13-5/8 15-5/8 17-3/8 17-3/8 19-7/8 22 22 25 25 30 30 36-3/8

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

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

J①4 4 5 6 6 7 7 8 8 8 9 10 10

K(Mounting 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 3/8-15 3/8-16 3/8-16

Holes) ➂

Gas Connections ➁1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4

W– – – – – – – – – – 5 5 5

X– – – – – – – – – – 16 16 16

L➃28-1/4 35 35 37-1/2 37-1/2 38 41 41 43 43 44-3/8 44-3/8 48-1/2

LL 18-1/2 24 27 31-1/2 31-1/2 32 35 35 35 37 38-3/8 38-3/8 42-1/2

EE – 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 32-7/8 32-7/8

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

Approx. Weight 58# 102# 116# 156# 162# 169# 231# 231# 231# 261# 330# 330# 410#

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.)

①At 65°F ambient and unit fired at full-rated input. Mounting height as measured from bottom of unit, and without deflector hoods.

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

①Diameter of round vent pipe to fit oval opening.

➁For natural gas; may vary depending on control availability.

➂PAE 30 through PAE 250 — 2 holes (and the level hanging adjustment feature). PAE 300 through PAE 400 — 4 holes.

➃Dimension equals overall plus 6".

Heater Parts from ACF Greenhouses

DIMENSIONS/PERFORMANCE – BAE

M (APPROX.)

FILTER RACK

(OPTIONAL)

BLOWER

ENCLOSURE

(OPTIONAL)

D (OPENING)

J VENT PIPE

4-5/8''

L (MIN. DISTANCE TO WALL)

RxT

QxV

Dimensions (inches) — BAE

Standard Blower Motor Data — BAE Note: Mounting heights and throws for BAE models, without ductwork or nozzles, and at a cfm

yielding a 55° temperature rise are the same as those listed for equivalent size PAE units.

Dimension Model Number

Symbol BAE 50 BAE 75 BAE 100 BAE 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 BAE 300 BAE 350 BAE 400

A17-1/4 19-1/4 21 21 23-1/2 25-5/8 25-5/8 28-5/8 28-5/8 33-5/8 33-5/8 40

B28-3/4 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 40-1/4 40-1/4

C20 20 22 22 22 25 25 25 25 25 25 25

D14-13/16 16-13/16 18-9/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 26-3/16 31-3/16 31-3/16 37-1/2

E16 16 20 20 20 24 24 24 24 24 24 24

F11-1/2 11-1/2 12-1/2 12-1/2 12-1/2 14-1/2 14-1/2 14-1/2 14-1/2 – – –

G2-5/8 2-5/8 3-3/8 3-3/8 3-3/8 4-1/8 4-1/8 4-1/8 4-1/8 4-1/4 4-1/4 4-1/4

H13-5/8 15-5/8 17-3/8 17-3/8 19-7/8 22 22 25 25 30 30 36-3/8

AA 6-1/4 6-1/4 8 8 8 9 9 9 9 9 9 9

BB 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 7-1/4 7-1/4

J①4 5 6 6 7 7 8 8 8 9 10 10

K➃3/8-16 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

Gas Connections ➁1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4

W– – – – – – – – – 5 5 5

X– – – – – – – – – 16 16 16

EE 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 63-5/8 63-5/8

L w/ Blwr Encl & Filt Rk 52-5/8 55-5/8 62-5/8 62-5/8 62-5/8 69-5/8 69-5/8 69-5/8 69-5/8 69-5/8 69-5/8 69-5/8

L w/o Blwr Encl & Filt Rk 43-3/4 46-3/4 52-3/4 52-3/4 53-3/4 58-3/8 58-3/8 58-3/8 58-3/8 58-3/8 58-3/8 64-1/2

M➂37-3/4 40-3/4 46-3/4 46-3/4 47-3/4 52-3/8 52-3/8 52-3/8 52-3/8 52-3/8 52-3/8 58-1/2

N➄14-3/8 17-1/8 21 21 21 24-1/4 24-1/4 24-1/4 24-1/4 18 18 22

O5-3/4 5-3/4 7-1/4 7-1/4 7-1/4 8-1/2 8-1/2 8-1/2 8-1/2 8-1/2 8-1/2 8-1/2

P22 25 30 30 30 34 34 34 34 34 34 34

Q Blower Encl Ht 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 25-1/8 25-1/8

V Blower Encl Width 17-1/2 21-1/4 29 29 29 34-1/4 34-1/4 34-1/4 34-1/4 44-3/8 44-3/8 44-3/8

R Inlet Duct Height 15-3/4 15-3/4 20 20 20 23-3/4 23-3/4 23-3/4 23-3/4 23-3/4 23-3/4 23-3/4

T Inlet Duct Width 16 19-3/4 27-1/2 27-1/2 27-1/2 32-3/4 32-3/4 32-3/4 32-3/4 42-7/8 42-7/8 42-7/8

Center to Center 10-15/16 13-7/16 17-3/8 17-3/8 17-3/8 20-3/8 20-3/8 20-3/8 20-3/8 20-3/8 20-3/8 20-3/8

Blower Mtg. Holes S

Std. Mtr. Pulley Dia. ➅3 3 3 3 3 3 3 3 3 3 41¼2 41¼2

Std. Blower Pulley Dia. 9 10 15 13 9 13 12 9 8 8 11 11

Blower Wheel Diameter 8 9 13 13 13 15 15 15 15 15 15 15

Approx. Weight 146# 158# 215# 215# 231# 307# 307# 331# 331# 420# 420# 490#

①Diameter of round vent pipe to fit oval opening.

➁For natural gas; may vary depending on control availability.

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

➃BAE 50 thru BAE 250 — 4 holes (2 on blower and 2 on unit).

BAE300 thru BAE 400 — 6 holes (2 on blower and 4 on unit).

➄Distance between mounting hole in unit casing and mounting hole on blower. On the BAE 300 thru BAE 400, the distance is from rear mounting hole in casing to the mounting hole on blower.

➅Motor pulley is adjustable.

For blower sizes, minimum

clearance to combustibles from

the bottom is 12", from the sides

18", and from the top and vent

connector is 6". Allow at least 12"

at the rear, or 6" beyond the end

of the motor (whichever is

greater), to provide ample air for

combustion and for proper

operation of fan.

Clearance at bottom should

equal “C” dimension for each

model number.

Standard Model Number

BAE 50 BAE 75 BAE 100 BAE 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 BAE 300 BAE 350 BAE 400

Horsepower 1/4 1/4 1/4 1/4 1/4 1/4 1/4 1/2 1/2 3/4 1 1-1/2

Amps (@ 115 volt) ①5.4 5.4 5.4 5.4 5.4 5.4 5.4 8.5 11 11 13.4 15.0

RPM 1725 1725 1725 1725 1725 1725 1725 1725 1725 1725 1725 1725

Type Split Split Split Split Split Split Split Split Split Split Perm. Cap.

Phase Phase Phase Phase Phase Phase Phase Phase Phase Phase Split Cap. Start

①Data listed is for standard 115-volt, 60-Hertz, single-phase motors.

Heater Parts from ACF Greenhouses

PERFORMANCE DATA – NOZZLES

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

40° DOWNWARD

NOZZLE

40° SPLITTER

NOZZLE

90° VERTICAL

NOZZLE

5-WAY

NOZZLES

Max. Mounting Ht. (ft.) H 14 16 18 22 21 24 27 24 26 28 32 32

Heat Throw (ft.) T 41 49 54 66 63 72 81 71 78 83 96 96

Heat Spread (ft.) S 14 16 18 22 21 24 27 24 26 28 32 32

Max. Mounting Ht. (ft.) H 15 17 18 22 22 21 24 24 26 28 32 32

Heat Spread (ft.) S 15 17 18 22 22 21 24 24 26 28 32 32

Max. Mounting Ht. (ft.) H – – 16 20 20 21 24 21 23 26 30 32

Heat Throw (ft.) T – – 41 50 49 52 59 53 58 65 75 80

Heat Spread (ft.) S – – 81 100 97 104 117 106 116 129 151 160

Max. Mounting Ht. (ft.) H 12 14 15 18 17 18 20 20 21 20 23 26

Heat Spread (ft.) S 17 20 21 26 24 25 28 27 30 27 32 37

BAE-50 BAE-75 BAE-100 BAE-125 BAE-145 BAE-175 BAE-200 BAE-225 BAE-250 BAE-300 BAE-350 BAE-400

Model Number

40°

Downward

Nozzle

90° Vertical

Nozzle

40° Splitter

Nozzle

5-Way

Nozzle

Type

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.

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.

Heater Parts from ACF Greenhouses

DIMENSIONAL DATA

Dimensions (in inches)

/4"

40°

Downward Nozzles

90°

Downward Nozzles

/4"

40°

Splitter Nozzles

5-Way

Nozzle

A 14-13/16 16-13/16 18-9/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 26-3/16 31-1/8 31-1/8 37-1/2

B 16 16 20 20 20 24 24 24 24 24 24 24

C 24 22 26 26 25 30 30 30 30 36 36 36

D 4 3 4 4 4 4 4 6 6 11 11 11

A 14-13/16 16-13/16 18-9/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 26-3/16 31-1/8 31-1/8 37-1/2

B 16 16 20 20 20 24 24 24 24 24 24 24

C 15 17 22 22 23 29 29 30 30 34 34 34

D 6 6 8 8 8 10 10 10 10 14 14 14

A – – 18-9/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 26-3/16 31-1/8 31-1/8 37-1/2

B – – 20 20 20 24 24 24 24 24 24 24

C – – 34 34 33 39 39 40 40 46 46 47

D – – 10 10 11 12 12 14 14 19 19 20

A 14-13/16 16-13/16 18-9/16 18-9/16 21 23-3/16 23-3/16 26-3/16 26-3/16 31-1/8 31-1/8 37-1/2

B 16 16 20 20 20 24 24 24 24 24 24 24

C 20-3/4 22-3/4 24-1/2 24-1/2 27 29 29 32 32 37 37 43-1/2

D 11 12 13 13 14 15 15 16 16 18 18 18

Model Number

40° Downward

Nozzle

90° Vertical

Nozzle

40° Splitter

Nozzle

5-Way

Nozzle

Type

Dimension

Symbol

BAE-50 BAE-75 BAE-100 BAE-125 BAE-145 BAE-175 BAE-200 BAE-225 BAE-250 BAE-300 BAE-350 BAE-400

Heater Parts from ACF Greenhouses

Model PAE 50 PAE 75 PAE 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 PAE 350 PAE 400

S S S S S S S S S S S S

8' 14 23 23 34 46 32 44 44 65 57 68 74

10' 12 21 20 30 42 29 39 39 58 51 60 66

12' 11 19 19 27 38 26 36 36 53 47 55 60

14' – 17 17 25 35 25 33 33 50 43 51 56

16' – 16 16 23 33 23 31 31 46 41 48 52

18' – – – 22 31 22 29 29 44 38 45 49

20' – – – 21 29 21 28 28 41 36 43 47

22' – – – – – – 27 26 40 35 41 45

24' – – – – – – 25 25 38 33 39 43

26' – – – – – – – – 36 32 38 41

28' – – – – – – – – 35 31 36 40

30' – – – – – – – – 34 30 35 38

32' – – – – – – – – – – 34 37

34' – – – – – – – – – – – 36

PERFORMANCE DATA – HOODS

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

MOUNTING

HEIGHT

60° NOZZLE

30° NOZZLE

60°

30°

30° DOWNTURN NOZZLE

60° DOWNTURN NOZZLE

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

THROW-FLOOR COVERAGE

Model PAE 50 PAE 75 PAE 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 PAE 350 PAE 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 X Y Z

8' 6 14 19 10 24 32 9 22 31 14 30 41 18 38 52 13 28 39 17 36 49 17 36 49 23 48 65 20 42 57 23 48 65 24 50 68

10' – 9 21 30 8 19 27 12 29 39 17 37 51 11 26 36 15 35 47 15 34 47 22 47 64 19 41 56 22 47 64 23 49 67

12' – 6 17 24 5 13 19 11 26 36 16 36 49 10 24 33 14 33 45 14 33 45 21 46 63 18 40 54 21 46 62 22 48 65

14' – – – 9 23 32 14 34 47 7 19 27 13 31 42 12 30 42 20 44 61 16 38 52 20 44 61 21 47 64

16' – – – – 12 31 43 – 10 27 38 10 27 37 18 42 58 15 36 49 18 42 58 19 45 62

18' – – – – – – 7 20 29 7 20 29 17 40 56 13 33 45 16 40 55 18 43 59

20' – – – – – – – – 15 37 52 10 27 38 15 37 51 16 40 55

22' – – – – – – – – 12 32 45 – 12 32 45 14 36 51

24' – – – – – – – – – – – 9 27 39

Mounting

Height to

Bottom of

Heater

30° Downward Hood For Propeller Units ➀

Mounting

Height to

Bottom of

Heater

90° Downward Hood For Propeller Units ➀

➀Data 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.

Model PAE 50 PAE 75 PAE 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 PAE 350 PAE 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 X Y Z

8' 0 13 18 0 24 33 0 22 30 0 32 43 0 41 56 0 30 40 0 38 52 0 38 51 0 51 70 0 45 61 0 51 69 0 53 73

10' – 0 21 29 0 18 25 0 29 40 0 39 54 0 27 37 0 36 49 0 36 49 0 50 68 0 43 59 0 49 68 0 52 71

12' – 0 15 21 0 9 13 0 26 36 0 37 51 0 23 32 0 34 46 0 33 45 0 48 66 0 41 57 0 48 65 0 50 69

14' – – – 0 21 29 0 34 47 0 16 23 0 30 41 0 30 41 0 46 63 0 39 53 0 46 62 0 48 66

16' – – – 0 15 22 0 30 41 – 0 25 35 0 25 34 0 43 59 0 35 49 0 43 59 0 46 63

18' – – – – 0 24 33 – 0 14 19 0 14 19 0 40 55 0 31 42 0 40 54 0 43 59

20' – – – – – – – – 0 35 49 0 23 32 0 35 48 0 39 53

22' – – – – – – – – 0 28 39 0 16 23 0 28 39 0 33 46

24' – – – – – – – – – – 0 21 30 0 22 31

Mounting

Height to

Bottom of

Heater

60° Downward Hood For Propeller Units ➀

Heater Parts from ACF Greenhouses

Model BAE 50 BAE 75 BAE 100 BAE 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 BAE 300 BAE 350

BAE 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 X Y Z

8' 11 24 33 16 35 48 16 35 48 21 44 60 23 46 63 21 43 59 25 50 69 26 53 71 29 58 79 30 61 83 36 71 97 36 71 97

10' 9 22 30 15 34 46 15 34 46 20 43 59 21 46 62 20 42 58 24 50 68 25 52 70 28 57 78 29 60 82 35 71 96 35 70 96

12' 7 18 25 14 32 44 14 32 44 19 42 57 20 44 60 18 41 56 22 49 66 23 51 69 26 56 77 28 59 81 34 70 95 34 70 95

14' – 12 29 41 12 29 41 17 40 55 19 43 59 17 39 54 21 47 65 22 49 68 25 55 75 27 58 80 33 69 94 33 69 94

16' – 10 26 36 10 26 36 16 38 52 17 41 56 16 37 51 20 45 62 21 48 66 24 54 74 26 57 78 32 68 93 31 68 93

18' – – – 14 35 49 16 38 53 14 34 48 18 43 60 19 46 63 23 52 71 24 56 76 30 67 92 30 67 91

20' – – – 12 31 43 14 35 49 11 30 42 16 41 56 18 43 60 21 50 69 23 54 74 29 65 90 29 65 89

22' – – – – – – 14 37 52 16 40 56 18 48 66 21 51 71 28 64 88 27 63 87

24' – – – – – – 10 29 42 13 35 50 17 44 62 20 49 68 26 62 85 26 61 85

26' – – – – – – – – 15 40 56 17 45 63 25 59 82 24 59 82

28' – – – – – – – – 11 32 46 14 39 56 23 57 79 23 56 78

30' – – – – – – – – – – 21 53 74 20 52 74

PERFORMANCE DATA – HOODS

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

90° HOOD

Mounting

Height to

Bottom of

Heater

30° Downward Hood For Blower Units ➁

Model BAE 50 BAE 75 BAE 100 BAE 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 BAE 300 BAE 350

BAE 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 X Y Z

8' 0 25 34 0 37 50 0 37 50 0 47 64 0 49 67 0 46 63 0 54 73 0 56 77 0 62 85 0 65 89 0 77 105 0 76 104

10' 0 22 30 0 35 48 0 35 48 0 45 62 0 48 66 0 45 61 0 53 72 0 55 75 0 61 83 0 64 88 0 76 103 0 75 103

12' 0 16 22 0 32 44 0 32 44 0 43 59 0 46 63 0 43 59 0 51 70 0 53 73 0 59 81 0 63 86 0 75 102 0 74 101

14' – 0 29 40 0 29 40 0 41 56 0 44 60 0 40 55 0 49 67 0 52 70 0 58 79 0 61 84 0 73 100 0 73 100

16' – 0 23 32 0 23 32 0 38 52 0 41 57 0 37 51 0 47 64 0 49 67 0 56 76 0 60 81 0 72 98 0 71 98

18' – – – 0 34 47 0 38 52 0 33 45 0 43 60 0 46 64 0 53 73 0 57 78 0 70 96 0 70 95

20' – – – 0 28 38 0 33 45 0 26 37 0 40 54 0 43 59 0 50 69 0 55 75 0 68 93 0 67 92

22' – – – – 0 24 34 – 0 34 47 0 38 53 0 47 64 0 51 71 0 65 90 0 65 89

24' – – – – – – 0 25 35 0 31 43 0 42 58 0 47 65 0 63 86 0 62 85

26' – – – – – – – – 0 36 50 0 42 58 0 59 81 0 59 81

28' – – – – – – – – 0 23 33 0 34 58 0 55 76 0 55 75

30' – – – – – – – – – – 0 50 69 0 49 68

32' – – – – – – – – – – 0 43 60 0 42 59

Mounting

Height to

Bottom of

Heater

60° Downward Hood For Blower Units ➁

Model BAE 50 BAE 75 BAE 100 BAE 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 BAE 300 BAE 350 BAE 400

S S S S S S S S S S S S

8' 24 38 41 55 60 58 71 75 86 96 121 124

10' 22 34 36 50 54 52 64 67 77 86 109 111

12' 20 31 33 45 49 47 58 61 71 79 99 101

14' 18 29 31 42 45 44 54 57 65 73 92 94

16' 17 27 29 39 42 41 50 53 61 68 86 88

18' – 25 27 37 40 39 47 50 58 64 81 83

20' – 24 26 35 38 37 45 48 55 61 77 78

22' – 23 25 34 36 35 43 46 52 58 73 75

24' – – – 32 35 33 41 44 50 56 70 72

26' – – – 31 33 32 40 42 48 54 68 69

28' – – – 30 32 31 38 40 46 52 65 66

30' – – – – 31 30 37 39 45 50 63 64

32' – – – – – – 36 38 43 48 61 62

34' – – – – – – 35 37 42 47 59 60

Mounting

Height to

Bottom of

Heater

90° Downward Hood For Blower Units ➁

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

Maximum mounting heights higher versus units without outlet devises.

Heater Parts from ACF Greenhouses

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

Temp Sheave Sheave Sheave Sheave

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

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

40 938 635 1/4 C8 3.5 705 2 775 1 845 1/3 C1 4.5

45 833 560 0 645 1/4 C8 3.5 725 2 800 0.5

BAE 50,000 50 750 505 1.5 595 4 685 2.5 765 1

55 682 460 1/4 C87 2.5 560 0 650 1/4 C8 3 740 1/4 C8 1.5

5040,500 60 625 420 3.5 530 1/4 C87 1.5 630 3.5 725 2

65 577 390 4.5 505 1.5 610 4 710 2

70 536 360 5 485 2 600 4 700 2.5

40 1406 545 0.5 645 1/4 C90 3.5 725 1/3 C90 2 800 1/2 C92 0.5

45 1250 490 2 590 4.5 680 3 755 1/3 C90 1.5

BAE 75,000 50 1125 440 1/4 C12 3 550 0 645 3.5 725 2

55 1023 400 4 520 1 620 1/4 C90 4 705 2.5

75 60,750 60 938 370 5 495 1/4 C12 1.5 595 4 685 1/4 C90 2.5

65 865 – – – – 475 2 580 4.5 670 3

70 804 – – – – 460 2.5 565 4.5 660 3

40 1875 315 1 395 3 465 1/3 C95 5 520 1/3 C95 4

45 1667 280 2.5 370 1/4 C94 4 440 1.5 505 1/4 C95 4.5

BAE 100,000 50 1500 250 1/4 C93 3.5 350 4.5 425 2 490 0.5

55 1364 230 4.5 330 5 410 1/4 C94 2.5 475 0.5

100 80,000 60 1250 210 5 320 0.5 400 3 470 1/4 C94 1

65 1154 – – – – 310 1/4 C93 1 390 3 460 1

70 1071 – – – – 300 1.5 385 3.5 455 1.5

40 2315 390 1/3 C36 4.5 460 1/3 C36 2.5 520 1/2 C98 1 570 1/2 C38 4.5

45 2058 345 1.5 425 1/4 C36 3.5 485 1/3 C36 2 545 1/2 C98 0.5

BAE 125,000 50 1852 310 1/4 C97 3 395 4 465 2.5 525 1/3 C36 1

55 1684 285 3.5 375 0.5 445 3 505 1.5

125 100,000 60 1543 260 4.5 355 1/4 C97 1 430 1/4 C36 3.5 495 1/4 C36 1.5

65 1425 240 1/4 C93 4 340 1.5 420 3.5 480 2

70 1323 220 5 330 2 410 4 475 2

40 2685 635 3/4 C38 3.5 680 3/4 C38 2.5 725 1 C38 2 765 1 C38 1

45 2387 565 1/2 C38 4.5 615 4 665 3/4 C38 3 710 3/4 C38 2

BAE 145,000 50 2148 510 1/2 C98 1 565 1/2 C38 4.5 620 1/2 C38 3.5 670 3

55 1953 465 1/3 C36 2.5 525 1/3 C36 1 580 4.5 635 1/2 C38 3.5

145 116,000 60 1790 425 3.5 490 1.5 550 1/3 C36 0 605 4

65 1652 390 1/4 C36 4.5 465 1/4 C36 2.5 530 0.5 585 1/3 C115 4.5

70 1534 365 5 440 3 510 1/4 C36 1 570 4.5

40 3281 430 1/2 C101 3 480 3/4 C101 2 515 3/4 C101 1 555 3/4 C101 0

45 2917 385 0 435 1/2 C101 3 480 1/2 C101 2 515 1

BAE 175,000 50 2625 350 1/3 C24 1.5 400 1/3 C102 4 445 3 490 1/2 C101 1.5

55 2386 315 2.5 375 1/3 C24 0.5 425 1/3 C102 3.5 465 2.5

175 141,750 60 2188 290 1/4 C24 3.5 350 1.5 405 4 450 1/3 C102 3

65 2019 270 4.5 335 1/4 C24 2 390 1/4 C24 0 435 3

70 1875 250 5 320 2.5 375 0.5 425 1/4 C102 3.5

40 3704 490 3/4 C16 3 530 1 C16 2 565 1 C16 1.5 600 1 C16 0.5

45 3292 440 1/2 C16 4.5 480 3/4 C16 3.5 520 3/4 C16 2.5 555 3/4 C16 1.5

BAE 200,000 50 2963 395 1/2 C104 1 440 1/2 C16 4.5 485 3.5 525 2.5

55 2694 360 1/3 C103 2 410 1/2 C104 0.5 455 1/2 C16 4 500 3

200 160,000 60 2469 330 3 385 1/3 C103 1 430 4.5 475 1/2 C16 3.5

65 2279 305 1/4 C103 4 365 1/4 C103 2 415 1/3 C103 0 460 4

70 2116 280 4.5 345 2.5 400 1/4 C103 0.5 445 1/3 C99 4

40 4219 645 1 1/2 C106 5 680 1 1/2 C106 4 715 1 1/2 C106 3.5 745 2 C108 2.5

45 3750 575 1 C107 4.5 615 1 C107 4 650 5 685 1 1/2 C106 4

BAE 225,000 50 3375 520 3/4 C101 1 560 3/4 C101 0 600 1 C107 4 635 1 C107 3.5

55 3068 470 1/2 C101 2 515 1 560 3/4 C101 0 600 3/4 C107 4

225 182,250 60 2813 430 3 480 1/2 C101 2 525 1 565 4.5

65 2596 400 1/3 C102 4 450 2.5 500 1/2 C101 1.5 540 1/2 C101 0.5

70 2411 370 1/4 C102 5 425 1/3 C102 3.5 475 2 520 1

40 4630 710 2 C110 1.5 745 2 C110 0.5 775 2 C33 4 800 2 C33 3.5

45 4115 630 1 1/2 C105 4 670 1 1/2 C105 2.5 700 1 1/2 C105 1.5 735 1/2 C105 0.5

BAE 250,000 50 3704 570 1 C16 1.5 610 1 C16 0.5 645 3.5 680 2.5

55 3367 520 3/4 C16 2.5 560 3/4 C16 1.5 600 1 C16 0.5 635 1 C16 0

250 200,000 60 3086 475 3.5 520 2.5 560 3/4 C16 1.5 600 3/4 C16 0.5

65 2849 440 1/2 C16 4.5 490 1/2 C16 3 530 2 575 1

70 2646 405 5 460 4 505 1/2 C16 3 550 1/2 C16 1.5

40 5556 830 3 C111 3 850 3 C111 2.5 875 3 C111 1.5 900 3 C111 1

45 4938 735 2 C110 0.5 765 2 C110 0 790 2 C33 3.5 815 3

BAE 300,000 50 4444 665 1 1/2 C105 2.5 690 1 1/2 C105 2 720 1 1/2 C105 1 750 2 C110 0.5

55 4040 605 1 C16 0.5 635 3.5 665 2.5 695 1 1/2 C105 2

300 240,000 60 3704 555 1.5 590 1 C16 1 620 1 C16 0 655 3

65 3419 510 3/4 C16 2.5 550 3/4 C16 2 585 1 620 1 C16 0

70 3175 475 3.5 515 2.5 555 3/4 C16 1.5 590 3/4 C16 1

40 6481 970 5 C116 2.5 995 5 C116 2 1015 5 C116 1.5 1040 5 C116 1

45 5761 865 3 C116 4.5 890 4 915 3.5 940 3

BAE 350,000 50 5185 775 3 C27 2 805 3 C27 1 835 3 C27 0 860 3 C116 4.5

55 4714 705 2 C108 3.5 740 2 C108 2.5 770 2 C108 2 795 2 C108 1

350 280,000 60 4321 650 1 1/2 C23 1.5 680 1 1/2 C23 0.5 715 1 1/2 C106 3.5 745 2.5

65 3989 600 1 C23 3.5 635 1.5 670 1 1/2 C23 0.5 700 1 1/2 C106 3.5

70 3704 555 5 595 1 C23 3 630 1 C23 2 665 1 1/2 C23 1

40 7407 945 5 C116 3 – – – – – – – – – – – –

45 6584 840 5 C118 0 865 5 C116 4.5 890 5 C116 4 915 5 C116 3.5

BAE 400,000 50 5926 755 3 C118 2.5 785 3 C118 1.5 810 3 C118 1 840 5 C118 0

55 5387 685 2 C108 4 720 3 750 2.5 780 3 C118 1.5

400 320,000 60 4938 630 2 665 2 C108 4.5 695 2 C108 4 730 2 C108 3

65 4558 580 1 1/2 C23 3.5 620 1 1/2 C23 2 655 1 1/2 C23 1 690 4

70 4233 540 5 580 3.5 620 2 655 1 1/2 C23 1

0.4 Static Pressure

Sheave

RPM HP Drive Turns

No. Open

910 1/3 C1 4

870 4.5

845 1/4 C1 4.5

825 5

810 0.5

805 1/4 C8 0.5

800 0.5

865 1/2 C91 4.5

830 1/2 C92 0

800 1/3 C90 0.5

775 1

760 1.5

750 1/4 C90 1.5

735 1.5

575 1/2 C96 3

560 1/3 C95 3

545 3.5

535 3.5

525 1/4 C95 4

520 4

515 4

620 3/4 C38 3.5

595 1/2 C38 4

575 4.5

560 1/3 C36 0

550 0

540 1/4 C36 0.5

530 0.5

805 1 C38 0.5

755 1.5

715 3/4 C38 2

685 2.5

660 1/2 C38 3

640 3.5

625 1/3 C115 3.5

590 1 C107 4.5

555 3/4 C101 0

530 0.5

510 1.5

490 1/2 C101 1.5

480 2

470 1/3 C102 2.5

635 1 1/2 C105 3.5

590 1 C16 1

560 3/4 C16 1.5

535 2

515 2.5

500 1/2 C16 3

490 3

775 2 C108 2

715 1 1/2 C106 3.5

670 1 C107 3

635 3.5

605 3/4 C107 4

580 4.5

560 1/2 C101 0

830 3 C111 2.5

765 2 C33 4

710 1 1/2 C105 1.5

670 1 C109 5

640 5

610 3/4 C16 0.5

590 3/4 C16 1

– – – –

840 3 C111 2.5

775 2 C33 4

725 1 1/2 C105 1

685 2

655 1 C109 5

625 1 C16 0

1060 5 C116 0.5

960 2.5

885 3 C116 4

825 3 C27 0.5

775 2 C108 2

730 1 1/2 C106 3

695 1 1/2 C23 0

– – – –

940 5 C116 3

870 4.5

810 3 C118 1

765 2

725 2 C108 3

695 1 1 /2 C23 0

PERFORMANCE DATA - BLOWER UNIT HEATERS

Models With or Without Blower Enclosure ➀ ➁ ➂ ➃ ➄

Heater Parts from ACF Greenhouses

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.

PERFORMANCE DATA - CONTINUED

BAE50 0.1" W.C.

BAE75 0.2" W.C.

BAE100 0.1" W.C.

BAE125 0.1" W.C.

BAE145 0.2" W.C.

BAE175 0.1" W.C.

BAE200 0.1" W.C.

BAE225 0.1" W.C.

BAE250 0.2" W.C.

BAE300 0.2" W.C.

BAE350 0.2" W.C.

BAE400 0.2" W.C.

Models With or Without Blower Enclosure ➀ ➁ ➂ ➃ ➄

Filters

0.5 Static Air Pressure 0.6 Static Air Pressure

Temp Sheave Sheave

Model Rise Airflow RPM HP Drive Turns RPM HP Drive Turns

No. (°F) (cfm) No. Open No. Open

40 938 – – – – – – – –

45 833 940 3.5 – – – –

50 750 920 4 – – – –

BAE 55 682 905 4 – – – –

5060 625 895 4 – – – –

65 577 890 4 – – – –

70 536 890 4 – – – –

40 1406 925 4 985 3/4 C91 3

45 1250 890 4 955 3.5

50 1125 865 4.5 930 3.5

BAE 55 1023 845 4.5 910 4

7560 938 830 5 895 4

65 865 820 0 885 4

70 804 810 0.5 875 1/3 C114 4.5

40 1875 625 2 – – – –

45 1667 610 2 – – – –

50 1500 595 2.5 – – – –

BAE 55 1364 585 2.5 – – – –

100 60 1250 580 3 – – – –

65 1154 570 3 – – – –

70 1071 570 3 – – – –

40 2315 665 3/4 C38 3 – – – –

45 2058 640 3.5 – – – –

50 1852 625 3.5 – – – –

BAE 55 1684 610 4 – – – –

125 60 1543 600 4 – – – –

65 1425 590 4 – – – –

70 1323 585 4.5 – – – –

40 2685 845 1 1/2 C113 2.5 885 1 1/2 C113 1.5

45 2387 795 1 C38 0.5 835 1 C38 0

50 2148 760 1.5 800 0.5

BAE 55 1953 730 2 775 1

145 60 1790 710 2 755 1.5

65 1652 690 2.5 740 1.5

70 1534 680 2.5 730 2

40 3281 620 1 C107 3.5 – – – –

45 2917 590 4.5 – – – –

50 2625 565 4.5 – – – –

BAE 55 2386 545 3/4 C101 0.5 – – – –

175 60 2188 530 0.5 – – – –

65 2019 520 1 – – – –

70 1875 510 1 – – – –

40 3704 665 1 1/2 C105 3 – – – –

45 3292 625 0 – – – –

50 2693 595 0.5 – – – –

BAE 55 2694 570 1.5 – – – –

200 60 2469 555 1.5 – – – –

65 2279 540 2 – – – –

70 2116 530 2.5 – – – –

40 4219 805 2 C108 1 – – – –

45 3750 745 2.5 – – – –

50 3375 700 3.5 – – – –

BAE 55 3068 670 1 C107 3 – – – –

225 60 2813 640 3.5 – – – –

65 2596 620 3.5 – – – –

70 2411 600 4 – – – –

40 4630 855 3 C111 2 880 3 C111 1.5

45 4115 790 2 C33 3.5 820 2 C33 3

50 3704 740 0.5 770 1 1/2 C100 4

BAE 55 3367 705 1.5 735 1 1/2 C105 0.5

250 60 3086 670 1 C109 5 705 4.5

65 2849 645 3/4 C109 5 680 4.5

70 2646 625 3/4 C16 0 660 3/4 C109 5

40 5556 – – – – – – – –

45 4938 865 3 C111 2 890 1.5

50 4444 805 3.5 830 2.5

BAE 55 4040 755 4.5 780 2 C33 4

300 60 3704 715 1.5 745 0.5

65 3419 685 2 715 1.5

70 3175 660 1 C109 5 690 2

40 6481 – – – – – – – –

45 5761 985 5 C116 2 1005 1.5

50 5185 910 3.5 935 3

BAE 55 4714 850 5 875 3 C116 4

350 60 4321 800 1 830 0.5

65 3989 760 2 790 1.5

70 3704 730 1 1/2 C106 3 755 1 1/2 C106 2.5

40 7407 – – – – – – – –

45 6584 965 2.5 990 2

50 5926 895 4 925 3

BAE 55 5387 840 0 870 3 C116 4.5

400 60 4938 795 1 825 0.5

65 4558 760 2 795 1

70 4233 730 3 765 2 C108 2

➀Shaded area indicates the unit’s standard motor &

standard drive arrangement. For operation outside the

shaded area, specify motor Hp and drive number.

➁Outputs shown are for elevations up to 2000'. For ele-

vations over 2000’, output needs to be reduced 4% for

each 1000' above sea level. (Does not apply in

Canada - see rating plate)

➂Sheave turns open are approximate. For proper opera-

tion, check blower rpm.

➃Mounting height and throw for BV models (w/o duct-

work or nozzles and at Cfm’s yielding a 55° tempera-

ture rise), are the same as those listed on page 8 for

equivalent PV models.

➄Rpm setting shown in bold type indicate factory set-

tings and standard drives.

1/3

1/4

1/2

1/3

1/4

1/3

1/2

1 1/2

3/4

1 1/2

3/4

1/2

C91

C114

C90

C95

1/2 C96

C95

C37

C38

C101

C16

1 1/2 C106

C16

C105

C33

C108

C118

C116

C107

3/4 C107

1/2

1 1/2

3/4

C91

C38

C109

C111

C105

C116

C118

Data for use with filters only

3C116

2C108 2C108

5 C116

Heater Parts from ACF Greenhouses

SERVICE INSTRUCTIONS – SAFETY DEVICES

Figure 13

Cross-section of Propeller Type Unit

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

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

of the unit.

IMPORTANT NOTE:

The limit control (overheat switch) on this unit heater will shut

off the gas should excessive discharge temperatures occur. Do

not attempt to control the fan with the limit control. Any change

in wiring to attempt to control the fan with the limit control will

result in hazardous conditions and void the warranty.

Blocked Vent Safety Switch (BVSS)

A BVSS is supplied on all gravity-vented unit heaters and is

designed to prevent operation of the main burner if the venting

system is blocked.

If the BVSS has tripped, turn off the gas and electric supply to

the unit heater. Check the entire vent system connected to the

unit heater for blockage or damage.

In the case of a restricted vent, there may not be enough

dilution air to carry away the heat radiating off the heat

exchanger top (and surrounding area), the BVSS may exceed

the temperature setting and trip.

Spillage will also cause the BVSS to trip. If spillage exceeds five

minutes, even though the vent is in compliance with the NFGC,

some type of change must be made in the vent 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.

If these changes do not stop the spillage or the installer

ALUMINIZED STEEL

DRAFT DIVERTER

VENT PIPE

CONNECTION

HEAT EXCHANGER

FAN & FAN GUARD

LIMIT CONTROL

MAIN BURNER COMBUSTION AIR

INLETS

DEFLECTOR BLADES

DIVERTER RELIEF

OPENING

BLOCKED VENT

SAFETY SWITCH

Heater Parts from ACF Greenhouses

SERVICE INSTRUCTIONS – SAFETY DEVICES

Figure 13a

BVSS - Troubleshooting Flow Chart

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

Is vent blocked or restricted?

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

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

Does switch still trip?

Is vent in compliance

with NFGC?

Can negative pressure

be corrected?

Correct vent

Install

power vent

accessory

Correct

negative

pressure

Is unit overfired?

Reduce input Can one or more of the following be done?

• Lengthen vertical vent run

• Insulate vent

• Use larger diameter vent

• Use less restrictive weather cap

Install power

exhauster accessory

Does unit still trip? Install power vent

accessory

YES

YES YES

YES

NO NO

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.

Note 1:

Note 2:

Heater Parts from ACF Greenhouses

Combustion Problem Symptoms and Diagnosis

To realize full gas heating value requires periodic inspections with

proper combustion control corrections as outlined and illustrated

here.

1. Lifting Flames

Lifting flames rise unevenly above the burner port and may

occur on few or all the ports. Sometimes the flames drop and

lift intermittently. Lifting can be eliminated by reducing primary

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.

SERVICE INSTRUCTIONS – GENERAL

Troubleshooting Guide

Figure 14

Manifold Adjustment, Natural Gas

Figure 15

Air Shutter Adjustment, Propane Gas

Figure 18

Lifting Flame Condition

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.) If air

pressure is abailable, use air hose to blow dirt and other

foreign matter from within the burner. Also main burner

orifices should be checked for blockage due to spider

webs, etc.

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.

To Remove Main Burner

1. Turn off all electricity and gas to unit.

2. Lower bottom pan to expose burner and manifold. See

Figure 1A, 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.

MANIFOLD MANIFOLD

MIXER

TUBES

MIXER

TUBES

BURNER

RETAINING PIN

MAIN

BURNER

ORIFICES

MAIN

BURNER

ORIFICES

AIR

SHUTTER

MANIFOLD MOUNTING

SCREW AND PIN

Heater Parts from ACF Greenhouses

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.

4. Wavering Flames

Drafts across burners may cause flames to waver or appear

unstable. Wavering flames can lead to incomplete combustion

if flames impinge on cool surfaces. Wavering can be caused

by air drafts into the burner compartment or by misalignment

of the burner. Draft-blown flames may indicate a cracked heat

exchanger.

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.

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.

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.

2. 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 1.

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.

TROUBLESHOOTING GUIDE

Figure 17

Wavering Flame or Misalignment

Figure 18

Floating Flame Condition

GOOD BAD

Figure 19

Flame Rollout Appearance

Heater Parts from ACF Greenhouses

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.

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.

POSSIBLE CAUSE POSSIBLE REMEDY

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.

4. 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.

Intermittent Pilot Problem Symptoms and

Diagnosis

1. Pilot will not light or stay lit:

2. Pilot lights, main burner will not light

3. Burner shuts down before thermostat is satisfied.

4. Burner fails to shut off after thermostat is satisfied:

If a qualified service person cannot solve the problem, consult your

local gas company or Modine representative.

When servicing, repairing or replacing parts on these units always

give the complete Model Number (which includes power code and

control code) and Serial Number from the unit rating plate.

See page 28 for Model Number and Serial Number Designations.

TROUBLESHOOTING GUIDE

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

CAUTION

Do not attempt to reuse ignition controllers which have been

wet. Replace defective controller.

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-ampls 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.

POSSIBLE CAUSE POSSIBLE REMEDY

Heater Parts from ACF Greenhouses

BAE 350 BAE 400

HP Drive HP Drive

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

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

1/40 1.0 1550 1.3 95 0.5 1550 0.6 105 – – – – – – – –

1/30 2.1 1050 2.3 165 – – – – – – – – – – – –

1/15 2.4 1050 2.7 210 1.3 1050 1.5 205 – – – – – – – –

1/6 2.8 1075 3.1 300 1.6 1075 1.7 265 – – – – – – – –

1/3 5.4 1075 5.7 510 2.5 1075 2.8 480 1.9 1140 2.3 500 2.1/1.1 1140 2.3/1.2 500

3/4 8.8 1075 9.1 965 4.4 1075 4.6 965 3.7 1140 3.9 750 3.4/1.7 1140 3.9/2.0 1040

Pwr. Electric PAE 30 PAE 50 PAE 75 PAE 100 PAE 125 PAE 145 PAE 175 PAE 200 PAE 225 PAE 250 PAE 300 PAE 350 PAE 400

Code Power Horsepower

01 115/60/1 1/40 1/40 1/30 1/30 1/15 1/6 1/6 1/6 1/6 1/3 1/3 3/4 3/4

02 230/60/1 1/40 1/40 1/15 1/15 1/15 1/6 1/6 1/6 1/6 1/3 1/3 3/4 3/4

04 200/60/3 – – – – – 1/3 1/3 1/3 1/3 1/3 1/3 3/4 3/4

230/460/60/3

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

MOTOR DATA

Power Code Description — Propeller PAE Models ➀ ➁ ➂ ➃

Motor Data and Total Unit Power Requirements — Propeller PAE Models

Power Code Description — Blower BAE Models ➁ ➂ ➃ ➄

BAE 50 BAE 75 BAE 100 BAE 125 BAE 145 BAE 175 BAE 200 BAE 225 BAE 250 BAE 300

HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive

Power Electric

Code Power

01 115/60/1

02230/60/1

03200/60/3

04230/460/60/3

05115/60/1

06230/60/1

07200/60/3

08230/460/60/3

09115/60/1

10230/60/1

11200/60/3

12230/460/60/3

13115/60/1

14230/60/1

15200/60/3

16230/460/60/3

17115/60/1

18230/60/1

19200/60/3

20230/460/60/3

21115/60/1

22230/60/1

23200/60/3

24230/460/60/3

25115/60/1

26230/60/1

27200/60/3

28230/460/60/3

29115/60/1

30230/60/1

31200/60/3

32230/460/60/3

33115/60/1

34230/60/1

35200/60/3

36230/460/60/3

37115/60/1

38230/60/1

39200/60/3

1/4

1/3

–

C87

–

1/4

1/3

1/2

3/4

–

C88

C12

C90

C114

C91

C92

C91

–

1/4

1/3

1/2

–

C94

C95

C96

–

1/4

1/3

1/2

3/4

–

C97

C93

C36

C37

C98

C38

–

1/3

1/2

3/4

1 1/2

1/4

–

C36

C115

C98

C38

C113

C36

–

1/4

1/3

1/2

3/4

–

C24

C102

C24

C101

C107

–

1/3

1/2

3/4

1 1/2

1/4

–

C103

C99

C104

C16

C105

C103

–

1/2

3/4

1 1/2

–

1/4

1/3

–

C101

C107

C101

C107

C106

–

C108

C102

–

3/4

1 1/2

–

1/2

C16

C109

C16

C109

C105

C100

–

C110

–

C33

–

C111

C16

1 1/2

–

3/4

–

C16

C109

C105

C100

–

C110

–

C33

–

C111

–

C16

–

1 1/2

–

C23

C106

–

C108

–

C27

–

C116

–

C116

–

➀Shaded pole motors on models PAE 30 through PAE 125 – permanent split capacitor motors on models PAE 145 through PAE 400.

➁Whenever 230V/1φor 230V/3φpower is used, it is necessary to specify 230V/25V controls. Whenever 460/3φpower is used, it is necessary to specify 230V/24V

controls and in addition, a 460V/230V 75VA step-down transformer (by others) is required (if the power exhauster accessory is used, the step-down transformer by

others needs to be 250VA). On 230V/3φor 460V/3φsystems, the motor starter coil voltage (motor starter by others) must be 230V. For 200V/3φsystem, the motor

starter coil voltage (motor starter by others) must be 200V.

➂BAE models – split phase motors 1/4-3/4 hp, capacitor start type motors 1-5 hp. 1/4-5 hp motors – 1725 rpm.

➃Units with 460V/3φpower supply are not listed by C.G.A.

➄All motors used are produced, rated and tested by reputable manufacturers in accordance with NEMA standards and carry the standard warranty of both the motor

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

C23

–

C108

–

C116

–

C118

–

C118

–

C116

–

1 1/2

–

Heater Parts from ACF Greenhouses

Blower Sheave Motor Sheave

Drive Belt No. Max.

No. Browning Pitch Dia. Bore Pitch Dia. Bore

C99 A47 8 1 2.9 1/2

C100 A50 8 1 4.4 5/8

C101 A50 9 1 2.9 5/8

C102 A49 9 1 2.9 1/2

C103 A54 12 1 2.9 1/2

C104 A55 12 1 2.9 5/8

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

C109 A43 5 1 2.9 5/8

C110 A55 10 1 4.4 7/8

C111 A52 8 1 4.4 1 1/8

C112 A55 10 1 4.4 1 1/8

C113 A42 8 3/4 4.4 5/8

C114 A32 4 3/4 2.9 1/2

C115 A41 6 3/4 2.9 1/2

C116 A50 7 1 4.4 1 1/8

C117 A55 11 1 4.4 1 1/8

C118 A52 9 1 4.4 1 1/8

C119 A56 11 1 4.4 1 1/8

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

C5A32 6 3/4 2.9 1/2

C16 A48 8 1 2.9 5/8

C24 A56 13 1 2.9 1/2

C27 A54 9 1 4.4 1 1/8

C33 A50 8 1 4.4 7/8

C36 A45 9 3/4 2.9 1/2

C37 A40 6 3/4 2.9 1/2

C38 A41 6 3/4 2.9 5/8

C87 A38 9 3/4 2.9 1/2

C88 A42 10 3/4 2.9 1/2

C89 A52 15 3/4 2.9 1/2

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

C93 A57 15 3/4 2.9 1/2

C94 A47 10 3/4 2.9 1/2

C95 A42 7 3/4 2.9 1/2

C96 A43 7 3/4 2.9 5/8

C97 A53 13 3/4 2.9 1/2

C98 A46 9 3/4 2.9 5/8

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

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

1/4 5.4 1725 5.7 390 2.7 1725 2.9 390 1.6 1725 1.8 370 1.4/0.7 1725 1.6/0.8 370

1/3 5.0 1725 5.3 410 2.5 1725 2.7 410 1.8 1725 2.0 400 1.6/0.8 1725 1.8/0.9 400

1/2 8.5 1725 8.8 600 3.8 1725 4.0 600 2.5 1725 2.7 600 2.6/1.3 1725 2.8/1.4 600

3/4 11.0 1725 11.3 870 5.5 1725 5.7 870 3.2 1725 3.4 840 3.0/1.5 1725 3.2/1.6 840

113.4 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

11/2 15.0 1725 15.3 1490 7.5 1725 7.7 1490 5.6 1725 5.8 1500 5.2/2.6 1725 5.4/2.7 1500

2– – – – – – – – 6.8 1725 7.1 1950 6.6/3.3 1725 6.8/3.4 1950

3– – – – – – – – 10.6 1725 10.8 3300 8.8/4.4 1725 9.0/4.5 3300

5– – – – – – – – 14.3 1725 14.5 4400 13.2/6.6 1725 13.4/6.7 4400

MOTOR DATA

Motor Data and Total Unit Power Requirements – Blower BAE Models

Blower Drive Numbers

Model Number Designations

PAE 145 A G 01 08

PAE - Propeller

Unit

BAE - Blower

Unit

Input

145 - 145,000 Btu/hr input

175 - 175,000 Btu/hr input

250 - 250,000 Btu/hr input

etc.

Control Code Type

08 - 115v/25v intermittent pilot

ignition, non-100% shut-off,

natural gas

09 - 230v/25v intermittent pilot

ignition, non-100% shut-off,

natural gas

etc.

Power Code

01 - Complete Power

Code descriptions

02 - are shown on

pages 18 and 19

of this manual

etc.

Ignition Type

C – Standing Pilot

G – Intermittent Pilot

K – Intermittent Pilot

Heat Exchanger

A - Aluminized

S - Stainless Steel

RATING PLATE IDENTIFICATION

MODEL IDENTIFICATION PLATE

SERIAL NUMBER MODEL NUMBER

POWER CODE CONTROL CODE

01121010692 PD150AE 01 30

Serial Number Designations

01 12 101 10 95

MOTOR VENDOR CODE

01 - Century

05 - Universal

etc.

SERIES IDENTITY NUMBER

Identifies which series of controls

were furnished on the unit.

FAN OR BLOWER

VENDOR CODE

01 - Revcor

08 - Brookside

etc.

YEAR OF

MANUFACTURE

91 - 1991

92 - 1992

etc.

WEEK OF

MANUFACTURE

10 - 10th week of 1995

25 - 25th week of 1995

etc.

Heater Parts from ACF Greenhouses

CONTROL OPTIONS

Propeller and Blower Unit Heaters – PAE and BAE Models ➀➁➂

Single-Stage, Standing Pilot, 100% Shut-Off – Utilizes a single-stage combination gas control and

thermocouple. Pilot needs to be manually lit initially and stays lit.

Two-Stage, Standing Pilot, 100% Shut-Off – Utilizes a two-stage gas control (which fires at 50% or

100% of full rated input) and thermocouple. Pilot needs to be manually lit initially and stays lit.

Available on PAE/BAE models only.

Single-Stage, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry – Utilizes a single-

stage combination gas control and an ignition control (continuous retry). Pilot is automatically lit on

call for heat.

Mechanical Modulation with Automatic Pilot Ignition, 100% Shut-Off with Continuous Retry – Utilizes

a 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 BAE models only.

Two-Stage, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry – Utilizes a two-stage

combination 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. Available on PAE/BAE models only.

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

115V

200/230V

24V

natural

propane

natural

propane

natural

propane

natural

propane

natural

propane

Control System Description Control

Code No. Service Voltage Thermostat

Voltage

Type of

Gas

➀Models BAE 50 thru BAE 100 with two-stage or modulating gas controls require a Category II vent system.

➁For 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.

➂Whenever 230V/1φ or 230V/3φpower is used, it is necessary to specify 230V/25V controls. Whenever 460V/3φpower is used, it is necessary to specify 230V/25V controls and in addition, a

460V/230V/75VA step-down transformer (by others) is required (if the power exhauster accessory is used, the step-down transformer by others needs to be 250VA). On 230V or 460V/3φsystems,

the motor starter coil voltage (motor starter by others) must be 230V. For 200V/3φsystems, the motor starter coil voltage (motor starter by others) must be 200V.

Control Operating Sequence

For Standing Pilot (with Pilot Lit)

Upon a call for heat from thermostat, power is supplied to the

combination gas control and at the same time power is supplied to

the fan timer. The main burner should light immediately. The fan

motor will start in 15 to 45 seconds.

When the thermostat has been satisfied, power is turned off to the

combination gas control and fan timer. The main burner will go out

but the pilot will continue to burn. The fan motor will continue to

operate for 45 to 75 seconds to allow the heat exchanger to cool

down.

For Intermittent Pilot

Upon a call for heat from the thermostat, power is supplied to the

ignition control and at the same time power is supplied to the fan

timer. Sparking will start at the pilot immediately and at the same

time the first operator of the combination gas control opens to allow

gas to flow to the pilot burner. The pilot flame should light and be

sensed (proven) in a few seconds. As soon as the pilot flame is

sensed the sparking will stop and the second operator of the

combination gas control will open allowing gas to flow to the main

burner. In 15 to 45 seconds from the time the thermostat called for

heat the fan motor will start.

On systems utilizing control codes 08 and 09, the ignition control will

attempt to light the pilot once the system is turned on. If the pilot is

not sensed for any reason, the spark will continue indefinitely until

the pilot flame is sensed or until power is interrupted to the system.

On systems utilizing control codes 30, 31, 85 or 86 the sequence is

similar, except that the system will attempt to light the pilot for 70

seconds once there is a demand for heat. If the pilot is not sensed

for any reason, the ignition control will wait for a predetermined time

with the combination gas control closed and no spark. After the

predetermined time lapses, the cycle will begin again. The time that

lapses between cycles is at pre-programmed intervals

(approximately 6 minutes). This will continue indefinitely until the pilot

flame is sensed or until power is interrupted to the system.

When the thermostat has been satisfied, power is turned off to the

ignition control and the combination gas control, so both the main

gas and pilot gas are turned off. The fan will continue to operate for

45 to 75 seconds to allow the heat exchanger to cool down.

Two-Stage Control Systems

The thermostat will start the unit with the combination gas control in

the first stage (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.

Mechanical Modulation Systems

When power is turned on the pilot is automatically lit. When the

sensing bulb attached to the combination gas control senses a drop

in temperature the valve will open at 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.

Service Checklist

Date Intalled Serviced by &

Serial No. Date Serviced

Model No. Serviced by &

Power Code Date Serviced

Control Code

Heater Parts from ACF Greenhouses

Heating Division

Modine Manufacturing Company

1221 Magnolia Avenue

Buena Vista, VA 24416

Telephone: 540-261-2166

Fax: 540-261-1563

Sales

Representatives

ALABAMA

Watts Engr. Sales

Birmingham, AL

(205) 871-4673

ALASKA

Proctor Sales, Inc.

Anchorage, AK

(907) 562-2608

ARIZONA

Climatec, Inc.

Phoenix, AZ

(602) 944-3330

ARKANSAS

John Lynn Co., Inc.

North Little Rock, AR

(501) 771-4343

CALIFORNIA

A/C Specialties

LaHabra, CA 90631

(714) 738-7711

Envir. Indus. Prod.

Mountain View, CA

(415) 964-6161

COLORADO

McCoy Sales Corp.

Englewood, CO

(303) 762-8012

CONNECTICUT

E.W. Leonard, Inc.

Moodus, CT

(203) 873-8691

DISTRICT OF COLUMBIA

Marva Sales, Inc.

Leesburg, VA

(540) 338-2009

FLORIDA

T.H. Brooks

Apopka, FL

(407) 886-8405

T.H. Brooks

Tampa, FL

(813) 622-7000

Aeromechanical, Inc.

Gulf Breeze, FL

(904) 932-2011

Power/Conditioning,

Tampa, FL

(813) 622-7000

GEORGIA

Herring Company, Inc.

Norcross, GA

(770) 416-0044

IDAHO

A.A. Maycock

Salt Lake City, UT

(801) 364-1926

ILLINOIS

John A. Sandberg Co.

East Moline, IL

(309) 796-2371

Fleming Hanson Sales

Downers Grove, IL

(708) 829-4060

Burden-Cooper, Inc.

Rockford, IL

(815) 633-6555

INDIANA

Jay Kress Assoc.

Indianapolis, IN

(317) 251-2498

Hydronic & Steam

South Bend, IN

(219) 234-6005

IOWA

Enquip/Peterson

Des Moines, IA

(515) 266-0844

KANSAS

Jorban Riscoe Assoc.

Kansas City, KS

(913) 722-1244

Jorban Riscoe Assoc.

Wichita, KS

(316) 687-3277

KENTUCKY

Climate Conditioning

Louisville, KY

(502) 267-4696

LOUISIANA

Schully Strawn

Metairie, LA

(504) 831-0000

Reed Mechanical

Shreveport, LA

(318) 865-3515

MAINE

Emerson-Swan, Inc.

Randolph, MA

(617) 986-2000

MARYLAND

Marva Sales, Inc.

Baltimore, MD 21217

(410) 945-0171

MASSACHUSETTS

Emerson-Swan, Inc.

Randolph, MA

(617) 986-2000

MICHIGAN

Raley Brothers

Grand Rapids, MI

(616) 742-0150

Air One Co.

Oak Park, MI

(810) 398-8700

Witheridge Co.

Saginaw, MI

(517) 792-2598

MINNESOTA

Walters-Climate, Inc.

Minneapolis, MN

(612) 544-8626

MISSISSIPPI

Ward Mechanical

Jackson, MS

(601) 956-3002

MISSOURI

Evans, Maille

St. Louis, MO

(314) 822-1023

MONTANA

John Klaboe

Butte, MT

(406) 782-6366

NEBRASKA

B.G. Peterson Co.

Omaha, NE

(402) 344-4311

NEVADA

John A. Sandberg Co.

Las Vegas, NV

(702) 367-1657

NEW HAMPSHIRE

Emerson-Swan, Inc.

Randolph, MA

(617) 986-2000

NEW JERSEY

C.R. Hutcheon, Inc.

Bloomfield, NJ

(201) 743-9770

NEW MEXICO

The Socha Company

Albuquerque, NM

(505) 839-0103

NEW YORK

Emerson-Swan, Inc.

East Greenbush, NY

(518) 477-2693

Edward H. Cox & Co.

Hamburg, NY

(716) 648-6321

R.P. Fedder Corp.

Rochester, NY

(716) 288-1600

Wales-Darby, Inc.

Ronkonkoma, NY

(516) 585-6800

Fedder Associates

Syracuse, NY

(315) 437-8451

NORTH CAROLINA

L.R. Gorrell Co.

Asheville, NC

(704) 253-1856

L.R. Gorrell Co.

Charlotte, NC

(704) 333-8436

L.R. Gorrell Co.

Greensboro, NC

(919)373-1281

L.R. Gorrell Co.

Raleigh, NC

(910) 821-1161

NORTH DAKOTA

Walters-Climate, Inc.

Minneapolis, MN

(612) 544-8626

OHIO

R.G. Anderson Co.,

Cincinnati, OH

(513) 527-2300

Mussun Sales, Inc.

Cleveland, OH

(216) 431-5088

Mussun Sales, Inc.

Columbus, OH

(614) 294-4822

Stoermer Equipment

Dayton, OH

(513) 275-5007

Toledo Thermal

Toledo, OH

(419) 475-7100

OKLAHOMA

A.M.E., Inc.

Oklahoma City, OK

(405) 843-9788

OREGON

Proctor Sales, Inc.

Portland, OR

(503) 639-1557

PENNSYLVANIA

H & H Associates

Mechanicsburg, PA

(717) 761-4370

B.J. Terroni

Bensalem, PA

(215) 639-3600

Charles W. Stanger

Allison Park, PA

(412) 492-9220

Hase, Inc.

Schuylkill Haven, PA

(717) 385-3682

RHODE ISLAND

Emerson-Swan, Inc.

Randolph, MA

(617) 986-2000

SOUTH CAROLINA

L.R. Gorrell Co.

Greenville, SC

(864) 297-7810

L.R. Gorrell Co.

Charleston, SC 29418

(803) 824-9449

SOUTH DAKOTA

Walters-Climate, Inc.

Minneapolis, MN

(612) 544-8626

TENNESSEE

Mech. & Indus. Sales

Gallaway, TN

(901) 867-0435

Charles F. Sexton Co.

Knoxville, TN

(423) 588-9691

Aircon Sales Agency

Nashville, TN

(615) 327-4640

TEXAS

SWK. Inc.

Dallas, TX

(214) 351-9985

Barnhart-Taylor

El Paso, TX

(915) 533-1231

Paschal-Harper, Inc.

Lubbock, TX

(210) 494-7593

Paschal-Harper, Inc.

San Antonio, TX

(210) 224-1661

UTAH

A.A. Maycock Co.

Salt Lake City, UT

(801) 364-1926

VERMONT

E.W. Leonard, Inc.

Moodus, CT

(203) 873-8691

VIRGINIA

L.A. Prillaman Co.

Richmond, VA

(804) 798-1455

WASHINGTON

Proctor Sales, Inc.

Lynnwood, WA

(800) 562-1321

Suntoya PSI

Spokane, WA

(509) 534-1516

WEST VIRGINIA

H.P. Heating Co., Inc.

Charleston, WV

(304) 345-9916

WISCONSIN

C & S Hydronics, Inc.

Delafield, WI

(414) 646-6325

WYOMING

John Klaboe

Butte, MT

(406) 782-6366

McCoy Sales Corp.

Englewood, CO

(303) 762-8012

A.A. Maycock Co.

Salt Lake City, UT

(801) 364-1926

Canadian

Sales Outlets

ALBERTA

Kehoe Equipment Co.

Edmonton, Alberta

(403) 420-0040

Summit Engineering Sales

Calgary, Alberta

(403) 250-9780

BRITISH COLUMBIA

Dierks Equipment Sales

Vancouver, BC

(604) 872-7891

MANITOBA

H.F. Clarke, Ltd.

Winnipeg, Manitoba

(204) 694-8637

NOVA SCOTIA

MacLeod and Grant, Ltd.

Stellarton, NS

(902) 752-5532

ONTARIO

Michael Stuart Company, Ltd.

Concord, Ontario

(905) 738-6008

G.P. McEachern, Ltd.

Thunder Bay, Ontario

(807) 623-4951

QUEBEC

G. Mitchell Heating & A/C

St. Laurent, Quebec

(514) 332-8929

SASKATCHEWAN

Cypress Sales

Regina, Saskatchewan

(306) 757-5656

Cypress Sales

Saskatoon, Saskatchewan

(306) 242-3333

Parts Wholesalers

CONNECTICUT

E.W. Leonard, Inc.

Moodus, CT

(203) 873-8691

COLORADO

McCoy Sales Corp.

Englewood, CO

(303) 762-8012

GEORGIA

Herring Company, Inc.

Norcross, GA

(404) 416-0044

ILLINOIS

Heinlein Supply.

Chicago, IL

(312) 774-8616

MARYLAND

Marva Sales

Baltimore, MD

(410) 945-0171

For local parts and service assistance, contact one of the following:

MASSACHUSETTS

Emerson-Swan, Inc.

Randolph, MA

(617) 986-2000

MICHIGAN

Air One Company

Oak Park, MI

(313) 398-8700

Raley Brothers

Grand Rapids, MI

(616) 452-6043

MINNESOTA

Walters Climate, Inc.

Minneapolis, MN

(612) 544-8626

NEVADA

Best Supply, Inc.

Las Vegas, NV

(702) 474-4475

NEW JERSEY

C.R. Hutcheon, Inc.

Bloomfield, NJ

(201) 743-9770

NEW YORK

ABCO Supply

Hicksville, NY

(516) 938-8400

H.C. Oswald

New York, NY

(212) 722-7000

OHIO

Wolff Bros. Sply, Inc.

Medina, OH

(216) 725-3451

Toledo Thermal Equip. Co.

Toledo, OH

(419) 475-7100

PENNSYLVANIA

B.J. Terroni Co., Inc.

Bensalem, PA

(215) 639-3600

Myers Distributing Co., Inc.

Duquesne, PA

(412) 469-1010

TENNESSEE

A. T. Distributors

Memphis, TN

(901) 278-7211

TEXAS

K. Sales, Inc.

Dallas, TX

(214) 484-8885

UTAH

A.A. Maycock Company

Salt Lake City, UT

(801) 364-1926

VIRGINIA

L.A. Prillaman Co., Inc.

Ashland, VA

(804) 798-1455

WASHINGTON

Proctor Sales, Inc.

Lynnwood, WA

(206) 774-1441

WASHINGTON, DC

Marva Sales

Lovettsville, VA

(540) 882-3640

WISCONSIN

C & S Hydronics, Inc.

Delafield, WI

(414) 646-6325

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

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