MODINE PTP ,BTP Power Vented Gas Fired Unit Heater

Product Information

Specifications

• Model Number: PTP/BTP
• Approval: California CEC and Massachusetts
• Application: Non-residential

Product Usage Instructions

Installation:

1. Ensure the unit is inspected upon arrival for any damage.
2. Check the rating plate to confirm the power supply meets installation requirements.
3. Verify the unit matches the product ordered.

Safety Precautions:

• Avoid storing flammable vapors or liquids near the appliance.
• Do not install the unit in areas with chlorinated, halogenated, or acidic vapors.
• If you smell gas, follow safety protocols and contact your gas supplier or fire department.

Service and Maintenance:

1. All service and installation must be done by qualified professionals.
2. Follow the installation, operating, and maintenance instructions carefully.

FAQ

• Q: Can this unit be used in residential applications?
  • A: No, this unit is certified for non-residential applications only.
• Q: What should I do if I detect a gas leak?
  • A: Follow the safety guidelines provided in the manual, including ventilating the area and contacting your gas supplier or fire department immediately.
• Q: Is it necessary to have regular maintenance checks on this unit?
  • A: Yes, regular maintenance checks by qualified professionals are recommended to ensure safe and efficient operation of the unit.

“`

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.

WARNING

IMPORTANT

1. 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 thoroughly before installing or servicing this equipment.
2. Do not locate ANY gas-fired units in areas where chlorinated, halogenated, or acidic vapors are present in the atmosphere. These substances can cause premature heat exchanger failure due to corrosion, which can cause property damage, serious injury, or death.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS: 1. Open windows. 2. Do not try to light any appliance. 3. Do not touch any electrical switch; do not use any
phone in your building. 4. Extinguish any open flame. 5. Immediately call your gas supplier from
a neighbor’s phone. Follow the gas supplier’s instructions. If you can not reach your gas supplier, call your fire department.

The use of this manual is specifically intended for a qualified installation and service agency. All installation and service of these units must be performed by a qualified installation and service agency.
Inspection on Arrival
1. Inspect unit upon arrival. In case of damage, report it immediately to transportation company and your local Modine sales representative.
2. Check rating plate on unit to verify that power supply meets available electric power at the point of installation.
3. Inspect unit upon arrival for conformance with description of product ordered (including specifications where applicable).
Table of Contents Inspection on Arrival . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Special Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SI (Metric) Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . 3 Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Unit Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Combustible Material and Service Clearances . . . . . . . . . . 4 Unit Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Gas Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 High-Altitude Accessory Kit . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Installation with Ductwork. . . . . . . . . . . . . . . . . . . . . . . . . . 15 Requirements/Adjustments and Data for Blower Units. . . . 15 Start-Up Procedure/Operation . . . . . . . . . . . . . . . . . . . . . . . . 20 Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Performance Data – General . . . . . . . . . . . . . . . . . . . . . . . . . 22 Performance Data – Downturn Hoods . . . . . . . . . . . . . . . . . . 23 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Service/Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Model/Serial Number/Replacement Parts . . . . . . . . . . . . . . . 27 Commercial Warranty. . . . . . . . . . . . . . . . . . . . . Last two pages

THIS MANUAL IS THE PROPERTY OF THE OWNER. PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.

SPECIAL PRECAUTIONS

SPECIAL PRECAUTIONS
THE INSTALLATION AND MAINTENANCE INSTRUCTIONS IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE SAFE, EFFICIENT AND TROUBLE-FREE OPERATION. IN ADDITION, PARTICULAR CARE MUST BE EXERCISED REGARDING THE SPECIAL PRECAUTIONS LISTED BELOW. FAILURE TO PROPERLY ADDRESS THESE CRITICAL AREAS COULD RESULT IN PROPERTY DAMAGE OR LOSS, PERSONAL INJURY, OR DEATH. THESE INSTRUCTIONS ARE SUBJECT TO ANY MORE RESTRICTIVE LOCAL OR NATIONAL CODES. HAZARD INTENSITY LEVELS 1. DANGER: Indicates an imminently hazardous situation
which, if not avoided, WILL result in death or serious injury. 2. WARNING: Indicates a potentially hazardous situation
which, if not avoided, COULD result in death or serious injury. 3. CAUTION: Indicates a potentially hazardous situation which,
if not avoided, MAY result in minor or moderate injury. 4. IMPORTANT: Indicates a situation which, if not avoided,
MAY result in a potential safety concern.
DANGER
Appliances must not be installed where they may be exposed to a potentially explosive or flammable atmosphere.
WARNING
1. Gas fired heating equipment must be vented – do not operate unvented.
2. A built-in power exhauster is provided – additional external power exhausters are not required or permitted.
3. If an existing heater is being replaced, it may be necessary to resize the venting systems. Improperly sized venting systems can result in vent gas leakage or the formation of condensate. Refer to the National Fuel Gas Code ANSI Z223.1 (NFPA 54) or CSA B149.1 – latest edition. Failure to follow these instructions can result in injury or death.
4. Under no circumstances should two sections of double wall vent pipe be joined together within one horizontal vent system due to the inability to verify complete seal of inner pipes.
5. All field gas piping must be pressure/leak tested prior to operation. Never use an open flame. Use a soap solution or equivalent for testing.
6. Gas pressure to appliance controls must never exceed 14″ W.C. (1/2 psi).
7. To reduce the opportunity for condensation, the minimum sea level input to the appliance, as indicated on the serial plate, must not be less than 5% below the rated input, or 5% below the minimum rated input of dual rated units.
8. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.
9. All appliances must be wired strictly in accordance with wiring diagram furnished with the appliance. Any wiring different from the wiring diagram could result in a hazard to persons and property.
10. Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105°C.
11. Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% greater than the rated voltage.

WARNING
12. When servicing or repairing this equipment, use only factory-approved service replacement parts. A complete replacements parts list may be obtained by contacting the factory. Refer to the rating plate on the appliance for complete appliance model number, serial number, and company address. Any substitution of parts or controls not approved by the factory will be at the owner’s risk.
CAUTION
1. All literature shipped with this unit should be kept for future use for servicing or service diagnostics. Do not discard any literature shipped with this unit.
2. Consult piping, electrical, and venting instructions in this manual before final installation.
3. Do not attach ductwork, air filters, or polytubes to any propeller unit heater.
4. Clearances to combustible materials are critical. Be sure to follow all listed requirements.
5. Heaters are designed for use in heating applications with ambient startup temperatures between -40°F and 90°F, and ambient operating temperatures between 40°F and 90°F.
6. Do not install unit outdoors.
7. In garages or other sections of aircraft hangars such as offices and shops that communicate with areas used for servicing or storage, keep the bottom of the unit at least 7′ above the floor unless the unit is properly guarded to provide user protection from moving parts. In parking garages, the unit must be installed in accordance with the standard for parking structures ANSI/NFPA 88A – latest edition, and in repair garages the standard for repair garages NFPA 30A – latest edition (formerly NFPA 88B). In Canada, installation of heaters in airplane hangars must be in accordance with the requirements of the enforcing authority, and in public garages in accordance with the current CSA-B149 codes.
8. 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 hangars and in accordance with the requirements of the enforcing authority and/or NFPA 409 – latest edition.
9. Installation of units in high humidity or salt water atmospheres will cause accelerated corrosion, resulting in a reduction of the normal life of the units.
10. Do not install units below 7′ measured from the bottom of the unit to the floor in commercial applications (unless unit is properly guarded to provide user protection from moving parts).
11. Be sure no obstructions block air intake and discharge of unit heaters.
12. The minimum distance from combustible material is based on the combustible material surface not exceeding 160°F. Clearance from the top of the unit may be required to be greater then the minimum specified if heat damage, other than fire, may occur to materials above the unit heater at the temperature described.
13. Allow 18″ of clearance at rear (or 12″ beyond end of motor at rear of unit, whichever is greater) and access side to provide ample air for proper operation of fan.
14. Installation must conform with local building codes or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) – latest edition. In Canada installation must be in accordance with CSA-B149.1.

2

6-560.14

SPECIAL PRECAUTIONS / SI (METRIC) CONVERSION FACTORS

CAUTION
15. Purging of air from gas supply line should be performed as described in the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) – latest edition. In Canada, installation must be in accordance with CSA-B149.1.
16. 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).
17. The unit should be isolated from the gas supply piping system by closing its field installed manual shut-off valve. This manual shut-off valve should be located within 6′ of the heater.
18. Turn off all gas before installing appliance. 19. Ensure that the supply voltage to the appliance, as
indicated on the serial plate, is not less than 5% below the rated voltage. 20. 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 11-14″ W.C. on propane. If inlet pressure is too high, install an additional pressure regulator upstream of the combination gas control. 21. Service or repair of this equipment must be performed by a qualified service agency. 22. Do not attempt to reuse any mechanical or electronic ignition controller which has been wet. Replace defective controller.
IMPORTANT
1. To prevent premature heat exchanger failure, do not locate ANY gas-fired appliances in areas where corrosive vapors (i.e. chlorinated, halogenated, or acidic) are present in the atmosphere.
2. To prevent premature heat exchanger failure, the input to the appliance as indicated on the serial plate, must not exceed the rated input by more than 5%.
3. Start-up and adjustment procedures must be performed by a qualified service agency.

BEFORE YOU BEGIN

CAUTION
1. All literature shipped with this unit should be kept for future use for servicing or service diagnostics. Leave manual with the owner. Do not discard any literature shipped with this unit.
2. Consult piping, electrical, and venting instructions in this manual before final installation.
3. Do not attach ductwork, air filters, or polytubes to any propeller unit heater.
In the U.S., the installation of these units must comply with the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) – latest edition 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 CSA-B149.1.
1. All installation and service of these units must be performed by a qualified installation and service agency only as defined in ANSI Z223.1 (NFPA 54) – latest edition or in Canada by a licensed gas fitter.
2. This unit is certified with the controls furnished. For replacements parts, please order according to the replacement parts list on serial plate. Always know your model and serial numbers. 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 speeds below what is shown in this manual.
4. Information on controls is supplied separately.
5. The same burner is used for natural and propane gas.

SI (Metric) Conversion Factors

To Convert “W.C. °F BTU Btu/ft3 Btu/hr
CFH (ft3/hr) CFH (ft3/hr) CFM (ft3/min) CFM (ft3/min)
feet Gal/Hr. Gal/Hr. gallons Horsepower inches pound
psig psig

Multiply By 0.249
(°F-32) x 5/9 1.06 37.3
0.000293 0.000472 0.00000787
0.0283 0.000472
0.305 0.00379
3.79 3.79 746 25.4 0.454 6.89 27.7

To Obtain kPa °C kJ kJ/m3 kW
m3/min m3/s
m3/min m3/s m m3/hr l/hr l W mm kg kPa “W.C.

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3

UNIT LOCATION
UNIT LOCATION
DANGER
Appliances must not be installed where they may be exposed to a potentially explosive or flammable atmosphere.

Figure 4.1 – Combustible Material and Service Clearances
TOP

CAUTION
1. Clearances to combustible materials are critical. Be sure to follow all listed requirements.
2. Heaters are designed for use in heating applications with ambient startup temperatures between -40°F and 90°F, and ambient operating temperatures between 40°F and 90°F.
3. Do not install unit outdoors.
4. In garages or other sections of aircraft hangars such as offices and shops that communicate with areas used for servicing or storage, keep the bottom of the unit at least 7′ above the floor unless the unit is properly guarded. In parking garages, the unit must be installed in accordance with the standard for parking structures ANSI/NFPA 88A latest edition, and in repair garages the standard for repair garages NFPA 30A – latest edition (formerly NFPA 88B). In Canada, installation of heaters in airplane hangars must be in accordance with the requirements of the enforcing authority, and in public garages in accordance with the current CSA-B149 codes.
5. 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 hangars and in accordance with the requirements of the enforcing authority and/or NFPA 409 – latest edition.
6. Installation of units in high humidity or salt water atmospheres will cause accelerated corrosion resulting in a reduction of the normal life of the units.

ACCESS SIDE

NON ACCESS
SIDE
BOTTOM

Table 4.1 – Clearances

Unit Side
Top and Bottom Access Side
Non-Access Side Rear
Vent Connector

Clearance To Combustible Materials
6″ 6″ 6″ 18″ 6″

Recommended Service Clearance
18″ 18″ 18″ 18″ 18″

6. Do not install units in locations where gas ignition system is exposed to water spray, rain, or dripping water.
7. Mounting height (measured from bottom of unit) at which unit heaters are installed is critical. Refer to mounting height and heat throw data on page 16 of this manual. The maximum mounting height for any unit is that height above which the unit will not deliver heated air to the floor.

IMPORTANT
To prevent premature heat exchanger failure, do not locate ANY gas-fired appliances in areas where corrosive vapors (i.e. chlorinated, halogenated or acidic) are present in the atmosphere.
Location Recommendations
1. When locating the heater, consider general space and heating requirements, availability of gas and electrical supply, and proximity to vent locations.
2. When locating units, it is important to consider that the exhaust vent piping must be connected to the outside atmosphere. Maximum equivalent vent lengths are listed in “Section A – General Instruction – All Units” of the Venting instructions.
3. Be sure the structural support at the unit location site is adequate to support the unit’s weight. Refer to page 18 for unit weights. For proper operation the unit must be installed in a level horizontal position.
4. Do not install units in locations where the flue products can be drawn into the adjacent building openings such as windows, fresh air intakes, etc.
5. Be sure that the minimum clearances to combustible materials and recommended service clearances are maintained. Units are designed for installation with the minimum clearances as shown in Figure 4.1 and Table 4.1.

Combustion Air Requirements
The National Fuel Gas Code defines an “unconfined space” as a space whose volume is greater than 50 cubic feet per 1,000 Btu/Hr input of the installed appliance(s). A confined space is 50 cubic feet or less per 1,000 Btu/Hr input of the installed appliance(s).
Units installed in tightly sealed buildings or confined spaces must be provided with 2 permanent openings – 1 near the top and 1 near the bottom of the confined space. Each opening should have a free area of not less than one square inch per 1,000 Btu/Hr of the total input rating of all units in the confined space, freely communicating with interior areas that have adequate infiltration from the outside.
For further details on supplying combustion air to a confined (tightly sealed) space or unconfined space, see the National Fuel Gas Code ANSI Z223.1 (NFPA 54) or CSA-B149.1 Installation Code – latest edition.
Sound and Vibration Levels
All standard mechanical equipment generates some sound and vibration that may require attenuation. Libraries, private offices and hospital facilities will require more attenuation, and in such cases, an acoustical consultant may be retained to assist in the application. Locating the equipment away from the critical area is desirable within ducting limitations. Generally, a unit should be located within 15′ of a primary support beam. Smaller deflections typically result in reduced vibration and noise transmission.

4

6-560.14

UNIT MOUNTING

CAUTION
1. Do not install units below 7′ measured from the bottom of the unit to the floor in commercial applications (unless unit is properly guarded to provide user protection from moving parts).
2. Be sure no obstructions block air intake and discharge of unit heaters.
3. The minimum distance from combustible material is based on the combustible material surface not exceeding 160°F. Clearance from the top of the unit may be required to be greater than the minimum specified if heat damage, other than fire, may occur to materials above the unit heater at the temperature described.
4. Allow 18″ clearance at rear (or 12″ beyond end of motor at rear of unit, whichever is greater) and access side to provide ample air for proper operation of fan.

Figure 5.1 – Unit Heater Suspension Methods

(Threaded Rod)

(Pipe Adapter Kit)

1. Be sure the means of suspension is adequate to support the weight of the unit (see page 18 for unit weights).
2. For proper operation, the unit must be installed in a level horizontal position.
3. Clearances to combustibles as specified in Table 4.1 must be strictly maintained.
4. All standard units are shipped fully boxed. Larger units are also supplied with skid supports on the bottom of the box. The larger units may be lifted from the bottom by means of a fork lift or other lifting device only if the shipping support skids are left in place and the forks support the whole depth of the unit. If the unit must be lifted from the bottom for final installation without the carton in place, be sure to properly support the unit over its entire length and width to prevent damage. When lifting units, make sure the load is balanced.
5. Propeller models have 4 mounting holes.The units can be mounted with 3/8″-16 threaded rod as follows:
· On each piece of threaded rod used, screw a nut a distance of about 1″ onto the end of the threaded rods that will be screwed into the unit heater.
· Place a washer over the end of the threaded rod and screw the threaded rod into the unit heater weld nuts on the top of the heater at least 5 turns, and no more than 10 turns. Tighten the nut first installed onto the threaded rod to prevent the rod from turning.
· Drill holes into a steel channel or angle iron at the same center-line dimensions as the heater that is being installed. The steel channels or angle iron pieces need to span and be fastened to appropriate structural members.
· Cut the threaded rods to the preferred length, place them through the holes in the steel channel or angle iron and secure with washers and lock nuts or lock washers and nuts. A double nut arrangement can be used here instead of at the unit heater (a double nut can be used both places but is not required).
· Do not install standard unit heaters above the maximum mounting height shown in Table 22.1 and 22.2
NOTE: A pipe hanger adapter kit, shown in Figure 5.1 is available as an accessory. One kit consists of drilled 3/4″ IPS pipe caps and 3/8″-16 x 1-1/2″ capscrews to facilitate threaded pipe suspension.

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5

INSTALLATION

INSTALLATION – VENTING

WARNING
1. Gas fired heating equipment must be vented – do not operate unvented.
2. A built-in power exhauster is provided – additional external power exhausters are not required or permitted.
3. If an existing heater is being replaced, it may be necessary to resize the venting systems. Improperly sized venting systems can result in vent gas leakage or the formation of condensate. Refer to the National Fuel Gas Code ANSI Z223.1 (NFPA 54) or CSA B149.1 – latest edition. Failure to follow these instructions can result in serious injury or death.
4. Under no circumstances should 2 sections of double wall vent pipe be joined together within 1 horizontal vent system due to the inability to verify complete seal of inner pipes.

CAUTION
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 CSA B149.1.

Model PTP and BTP unit heaters must be vented with the proper passageway as described in these instructions to convey flue gases from the unit or the vent connector to the outside atmosphere.
The venting instructions are organized in sections, based on installation type. The sections are identified as follows:

Instructions
A B C

Applicable Installation Instructions by Vent System Type
General Instructions for ALL Installations VERTICAL CATEGORY I vent systems j HORIZONTAL CATEGORY III vent systems j

The differences between Vertical and Horizontal vent systems will be identified in “Section A – General Instructions – All Units”.

A4. Refer to Table 6.1 for total minimum and maximum vent lengths, making the system as straight as possible. The equivalent length of a 90° elbow is 5 feet for 4 inch diameter and 7 feet for 6 inch diameter.
Table 6.1 – Vent Pipe Diameters, Transitions, and Total Equivalent Vent Pipe Lengths for Horizontal Venting Systems

Model Size
150 175-200 250-400

Vent Pipe Diameter
4″ 4″ 6″

Equivalent Vent Length

Minimum

Maximum

3′

50′

3′

70′

3′

70′

A5. Horizontal sections of vent pipe are to be installed with an upward or downward slope from the appliance of 1/4 inch per foot and suspended securely from overhead structures at points not greater than 3′ apart.
A6. Fasten individual lengths of vent together with at least 3 corrosion- resistant sheet metal screws.
A7. Keep single wall vent pipe at least 6″ from combustible materials. For double wall vent pipe, follow the vent pipe manufacturer’s clearances to combustibles. The minimum distance from combustible materials is based on the combustible material surface not exceeding 160°F. Clearance from the vent pipe (or the top of the unit) may be required to be greater than 6″ if heat damage other than fire could result (such as material distortion or discoloration).
A8. Avoid venting through unheated space when possible. When venting does pass through an unheated space or if the unit is installed in an environment that promotes condensation, insulate runs greater than 5′ to minimize condensation. Inspect for leakage prior to insulating and use insulation that is noncombustible with a rating of not less than 400°F. Install a tee fitting at the low point of the vent system and provide a drip leg with a clean out cap as shown in Figure 9.1.
Figure 6.1 – Venting Through Combustible Roof or Wall

Single Wall Vent Pipe

Double Wall Vent Pipe

Specified Terminal

Specified Terminal

Flashing

Flashing

Section A – General Instructions – All Units

A1. If the unit heater being installed is replacing existing equipment and using the existing vent system from that equipment, inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) or CSA B149.1 Installation Code latest edition and these instructions. Determine that there is no blockage or restriction, leakage, corrosion and other deficiencies, which could cause an unsafe condition.
A2. The vent pipe should be galvanized steel or other suitable corrosion- resistant material. Follow the National Fuel Gas Code for minimum thickness of vent material. The minimum thickness for connectors varies depending on the pipe diameter. Do not vent unit with PVC or other forms of plastic venting material.
A3. All heaters come with a factory installed vent adapter for attaching the vent pipe to the heater (see Table 6.1). Attach the vent pipe to the adapter with 3-corrosion resistant screws. (Drill pilot holes through the vent pipe and adapter prior to screwing in place). Vent pipe must not be smaller than the connector size.

Listed Thimble

Clearance Specified by Type B Vent Mfg.

Single Wall
Single Wall Vent Pipe Terminating with Double wall vent pipe.

Double Wall

Specified Terminal

Clearance Specified by Type B Vent Mfg.
Single Wall Vent Pipe

Single Wall

Specified Terminal

Listed Thimble
See Instruction A12 for attaching single wall pipe to double wall pipe

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6-560.14

INSTALLATION – VENTING
A9. When the vent passes through a combustible INTERIOR wall or floor, a metal thimble 4″ greater than the vent diameter is necessary. If there is 6′ or more of vent pipe in the open space between the appliance and where the vent pipe passes through the wall or floor, the thimble need only be 2″ greater than the diameter of the vent pipe. If a thimble is not used, all combustible material must be cut away to provide 6″ of clearance. Where authorities have jurisdiction, Type B vent may be used for the last section of vent pipe to maintain clearance to combustibles while passing through wall or floor (see Figure 6.1). Any material used to close the opening must be noncombustible.
A10. All seams and joints of the single wall pipe must be sealed with metallic tape or silastic suitable for temperatures up to 400°F. Wrap the tape 2 full turns around the vent pipe. One continuous section of double wall vent pipe may be used within the vent system to pass through the wall to a listed vent cap. Refer to instruction A11 in “Section A ­ General Instructions ­ All Units” for attaching double wall pipe to single wall pipe.

A11. The following are General Instructions for Double Wall (Type B) Terminal Pipe Installation:
How to attach a single wall vent terminal to double wall (Type B) vent pipe:

1. Look for the “flow” arrow on the vent pipe.
   2. Slide the vent terminal inside the exhaust end of the double wall vent pipe.
   3. Drill 3 holes through the pipe and the vent terminal. Using 3/4″ long sheet metal screws, attach the cap to the pipe. Do not overtighten.
   How to connect a single wall vent system to a double wall (Type B) vent pipe:
2. Slide the single wall pipe inside the inner wall of the
   double wall pipe. 2. Drill 3 holes through both walls of the single and double
   wall vent pipes. Using 3/4″ sheet metal screws, attach the 2 pieces of pipe. Do not overtighten. 3. The gap between the single and double wall pipe must be sealed but it is not necessary to fill the full volume of the annular area. To seal, run a large bead of 400°F silastic around the gap. A12. Vent termination clearances must be maintained:

Table 7.1 – Vent Termination Clearances

Vent Shall Terminate:

Structure

3 feet above

Forced air inlet within 10′ (US)

6 feet in all directions

Forced air inlet (Canada)

3 feet in all directions

Combustion Air inlet of another appliance

4 feet below, 4 feet horizontal, or 1 foot above

Door window, gravity air inlet, or any building opening (US)

3 feet in all directions

Door window, gravity air inlet, or any building opening (Canada)

Reference Standard NFPA 54 CSA B149.1 CSA B149.1
NFPA 54
CSA B149.1

3 feet horizontal

Electric meter, gas meter, gas regulator, and relief equipment

CSA B149.1

2 feet in all directions

Adjacent building, adjoining building, or parapet wall

Modine

7 feet in all directions

Adjacent public walkways

NFPA 54/CSA B149.1

1 foot above

Grade (ground level)

NFPA 54/CSA B149.1

1 foot below or 1 foot beyond Eave with 24″ overhang or less

Modine

3 feet below or 1 foot beyond Eave with greater than 24″ overhang

Modine

j Do not terminate the vent directly above a gas meter or regulator. Recommendations based on CSA B149.1 and NFPA 54. Venting must conform with applicable current revision of local and national installation codes.

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7

INSTALLATION – VENTING

A13. Do NOT vent this appliance into a masonry chimney.
A14. Do NOT use dampers or other devices in the vent or combustion air pipes.
A15. The venting system must be exclusive to a single appliance and no other appliance is allowed to be vented into it.
A16. Precautions must be taken to prevent degradation of building materials by flue products.
A17. Single wall vent pipe must not pass through any unoccupied attic, inside wall, concealed space, or floor.
A18. Uninsulated single wall vent pipe must not be used outdoors for venting appliances in regions where the 99% winter design temperature is below 32°F.
A19. The vent terminal must be:
Table 8.1 – Vent Terminals

Model Size

Modine PN

150-200

5H0722850001

250-400

5H0722850002

A20. In addition to following these eneral Instructions, specific instructions for Vertical Category I or Horizontal Category III vent systems must also be followed. The following outlines the differences:
Table 8.2 – ANSI Unit Heater Venting Requirements

Category I

Description
Negative vent pressure Non-condensing

Venting Requirements
Follow standard venting requirements.

II

Negative vent pressure Condensing

Condensate must be drained.

III

Positive vent pressure Non-condensing

Vent must be gas tight.

Positive vent pressure

Vent must be liquid and

IV

Condensing

gas tight. Condensate must be drained.

Note: Vent connectors serving Category I appliances shall not be connected into any portion of mechanical draft systems operating under positive pressure.

Vertical Category I Vent
· Vertical vent systems terminate vertically (up) (an example is shown in Figure 9.1).
· The horizontal portion of the vent run cannot exceed 75% of the vertical rise (Example: If the vent height is 10′, the horizontal portion of the vent system cannot exceed 7.5′).
· The vent terminates a minimum of 5′ above the vent connector on the unit.
· If the vent system to be installed meets ALL these criteria (an example is shown in Figure 9.1), proceed to “Section B – Vertical Vent System Installation”. For all other cases, proceed to the next section for Horizontal Category III Vent System Determination:
Horizontal Category III Vent
· Horizontal vent systems terminate horizontally (sideways) (an example is shown in Figure 10.2).
· A vent system that terminates vertically but has a horizontal run that exceeds 75% of the vertical rise is considered horizontal.
· Horizontal vent configurations are Category III. Additional requirements are covered in “Section C – Horizontal Category III Vent System Installation”.

8

6-560.14

INSTALLATION – VENTING
Section B ­ Vertical Vent System Installation
B1. This section applies to vertically vented Category I vent systems and is in addition to “Section A ­ General Instructions ­ All Units”.
B2. Vertical vent systems terminate vertically, and must be sized in accordance with the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) – latest edition.
B3. The horizontal portion of the vent run cannot exceed 75% of the vertical rise (Example: If the vent height is 10′, the horizontal portion of the vent system cannot exceed 7.5′).
B4. It is recommended to install a tee with drip leg and clean out cap as shown in Figure 9.1.
B5. The vent terminates a minimum of 5′ above the vent connector on the unit.
B6. All vertically vented heaters that are Category I must be connected to a vent complying with a recognized standard, with a material acceptable to the authority having jurisdiction. Venting into a masonry chimney is not permitted. Refer to the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) – latest edition for instructions on common venting.
B7. Use a listed vent terminal to reduce down drafts and moisture in the vent.
B8. Double wall vent pipe is recommended, although single wall can be used if the requirements of the National Fuel Gas Code are followed.
B9. Vertical vents must terminate a minimum horizontal and vertical distance from roof lines and adjacent walls or obstructions. These minimum distances are outlined as follows (based on National Fuel Gas Code requirements for vents with diameters less than 12″): · For double wall vent pipe and 8′ or greater horizontal distance to any vertical wall or similar obstruction, the vent must terminate above the roof in accordance with Figure 9.1 and Table 9.1. · For double wall vent pipe and less than 8′ horizontal distance to any vertical wall or similar obstruction, the vent must terminate at least 2′ above the highest point where it passes through a roof of a building and at least 2′ higher than any portion of a building within a horizontal distance of 10′ (see Figure 9.1).
Table 9.1 – Minimum Height from Roof to Lowest Discharge Opening

Figure 9.1 – Vertical Category I Vent System
LISTED TERMINAL

X ROOF PITCH IS:
X / 12 12
USE LISTED THIMBLE THROUGH ROOF AND CEILING

“H” MIN* ROOF FLASHING

BACK VIEW

4″ MIN

EXHAUST

TEE WITH DRIP LEG AND CLEANOUT CAP (SLOPE 1/4″ PER FOOT DOWNWARD TOWARD DRIP LEG)

12″ MIN RECOMMENDED

Rise X (in) 0-6 6-7 7-8 8-9 9-10
10-11 11-12 12-14 14-16 16-18 18-20 20-21

Roof Pitch Flat to 6/12 6/12 to 7/12 7/12 to 8/12 8/12 to 9/12 9/12 to 10/12 10/12 to 11/12 11/12 to 12/12 12/12 to 14/12 14/12 to 16/12 16/12 to 18/12 18/12 to 20/12 20/12 to 21/12

Min Height H (ft) j 1.00 1.25 1.50 2.00 2.50 3.25 4.00 5.00 6.00 7.00 7.50 8.00

j Size according to expected snow depth.

· For single wall vent pipe and 10′ or greater horizontal distance to any portion of a building, the vent must terminate at least 2′ above the highest point where it passes through a roof of a building and at least 2′ higher than any portion of a building within a horizontal distance of 10′.
· For single wall vent pipe and less than 10′ horizontal distance to any portion of a building, the vent must terminate at least 2′ higher than any portion of that building.

6-560.14

9

INSTALLATION – VENTING
Section C ­ Horizontal, Category III Vent System Installation
C1. This section applies to horizontally vented Category III vent systems and is in addition to “Section A ­ General Instructions ­ All Units”.
C2. Horizontal vent systems terminate horizontally (sideways).
C3. Seal all seams and joints of un-gasketed single wall pipe with metal tape or Silastic suitable for temperatures up to 400°F. Wrap the tape 2 full turns around the vent pipe. For single wall vent systems, 1 continuous section of double wall vent pipe may be used within the vent system to pass through the wall to a listed vent cap. Under no circumstances should 2 sections of double wall vent pipe be joined together within 1 horizontal vent system due to the inability to verify complete seal of inner pipes. Category III vent systems listed by a nationally recognized agency and matching the diameters specified may be used. Different brands of vent pipe materials may not be intermixed. Refer to instruction A10 in “Section A ­ General Instructions ­ All Units” for attaching double wall pipe to single wall pipe.
C4. All horizontal Category III vents must be terminated with a listed vent cap. The cap must terminate a minimum distance of 12″ beyond the exterior wall surface as shown in Figure 10.2. The vent must be supported as shown in Figure 10.1. Precautions must be taken to prevent degradation of building materials by flue products.
Figure 10.1 – Exhaust Vent Construction Through Combustible Walls and Support Bracket

Figure 10.2 – Horizontal Venting
C8. For a vent termination located under an eave, the distance of the overhang must not exceed 24″. The clearance to combustibles above the exterior vent must be maintained at a minimum of 12″. Consult the National Fuel Gas Code for additional requirements for eaves that have ventilation openings.
C9. Once venting is complete, proceed to the section titled “Installation ­ Gas Connections”.

VENT PIPE DIAMETER

2″ MIN.

METAL SLEEVE

FIBER GLASS INSULATION
MIN. 2″

12″ MIN

METAL FACE

PLATE

1″

METAL SLEEVE

9″

2″ MIN.

1″

45 9″

VENT TERMINATION SUPPORT BRACKET
(where required) (Make from 1″ x 1″ steel angle)

C5. When condensation may be a problem, the vent system shall not terminate over public walkways or over an area where condensate or vapor could create a nuisance or hazard or could be detrimental to the operation of regulators, relief openings, or other equipment.
C6. The venting system must be exclusive to a single unit, and no other unit is allowed to be vented into it.
C7. When vented horizontally, maintain a 1/4″ per foot rise away from the heater and place a drip leg with clean out near the unit as shown in Figure 10.2. Where local authorities have jurisdiction, a 1/4″ per foot downward slope is acceptable with a drip leg and clean out near the exit of the vent as shown in Figure 10.2, or allow the condensate to drip out the end.

10

6-560.14

INSTALLATION – GAS CONNECTIONS
GAS CONNECTIONS
WARNING

Figure 11.1 – Recommended Sediment Trap/Manual Shut-off Valve Installation – Side or Bottom Gas Connection

1. All field gas piping must be pressure/leak tested prior to operation. Never use an open flame. Use a soap solution or equivalent for testing.

2. Gas pressure to appliance controls must never exceed 14″ W.C. (1/2 psi).

3. To reduce the opportunity for condensation, the minimum sea level input to the appliance, as indicated on the serial plate, must not be less than 5% below the rated input, or 5% below the minimum rated input of dual rated units.
CAUTION
1. Purging of air from gas lines should be performed as described in the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) – latest edition or in Canada CSA-B149 codes.
2. 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).
3. The unit should be isolated from the gas supply piping system by closing its field installed manual shut-off valve. This manual shut-off valve should be located within 6′ of the heater.

Manual shut-off valve is in the “OFF” position when handle is perpendicular to pipe.

Table 11.1 – Sea Level Manifold Pressure & Gas Consumption

Model Size

Manifold Pressure (“W.C.):

Natural 3.5

Propane 10

of Orifices

CFH

142.9 60.0

150 Gal/Hr.Propane

n/a

1.6

6

Orifice Drill Size

42

53

CFH

166.7 70.0

175 Gal/Hr.Propane

n/a

1.9

7

Orifice Drill Size

42

53

4. Turn off all gas before installing appliance.

CFH

190.5 80.0

200 Gal/Hr.Propane

n/a

2.2

7

IMPORTANT
To prevent premature heat exchanger failure, the input to the appliance, as indicated on the serial plate, must not exceed the rated input by more than 5%.
1. Installation of piping must conform with local building codes, or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) – latest Edition. In Canada, installation must be in accordance with CSA-B149.1.
2. Piping to units should conform with local and national requirements for type and volume of gas handled, and pressure drop allowed in the line. Refer to Table 11.1 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 11.2. 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 10.2 allows for a 0.3″ W.C. pressure drop in the supply pressure from the building main to the unit. The inlet pressure to the unit must be 6-7″ W.C. for natural gas and 11-14″ W.C. for propane gas. When sizing the inlet gas pipe diameter, make sure that the unit supply pressure can be met after the 0.3″ W.C. has been subtracted. If the 0.3″ W.C. pressure drop is too high, refer to the Gas Engineer’s Handbook for other gas pipe capacities.
3. Install a ground joint union with brass seat and a manual shut-off valve adjacent to the unit for emergency shut-off and easy servicing of controls, including a 1/8″ NPT plugged tapping accessible for test gauge connection (see Figure 11.1).
4. Use two wrenches when connecting field piping to units.
5. Provide a sediment trap before each unit in the line where low spots cannot be avoided (see Figure 11.1).

Orifice Drill Size

38

52

CFH

238.1 100.0

250 Gal/Hr.Propane

n/a

2.7

9

Orifice Drill Size

39 1.55mm

CFH

285.7 120.0

300 Gal/Hr.Propane

n/a

3.3

9

Orifice Drill Size

36

51

CFH

333.3 140.0

350 Gal/Hr.Propane

n/a

3.8

12

Orifice Drill Size

38

52

CFH

381.0 160.0

400 Gal/Hr.Propane

n/a

4.4

12

Orifice Drill Size

36

51

Table 11.2 – Gas Pipe Capacities – Natural Gas j

Pipe Length

(ft)

1/2″ 3/4″

Natural Gas 1″ 1-1/4″ 1-1/2″ 2″

10

132 278 520 1050 1600 3050

20

92 190 350 730 1100 2100

30

73 152 285 590 890 1650

40

63 130 245 500 760 1450

50

56 115 215 440 670 1270

60

50 105 195 400 610 1150

70

46 96 180 370 560 1050

80

43 90 170 350 530 930

100

38 79 150 305 460 870

125

34 72 130 275 410 780

150

31 64 120 250 380 710

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

Capacities in Cubic Feet per Hour through Schedule 40 pipe with maximum 0.3″ W.C. pressure drop with up to 14″ W.C. gas pressure. Specific gravity is 0.60 for Natural gas and 1.50 for Propane gas.
For Pipe Capacity with Propane Gas, divide Natural gas capacity by 1.6. Example: What is the Propane gas pipe capacity for 60 feet of 1-1/4″ pipe? The Natural gas capacity is 400 CFH. Divide by 1.6 to get 250 CFH for Propane gas.

6-560.14

11

INSTALLATION – HIGH ALTITUDE ACCESSORY KIT

HIGH ALTITUDE ACCESSORY KIT
Modine’s gas-fired equipment standard input ratings are certified by ETL. For elevations above 2,000′, ANSI Z223.1 requires ratings be reduced 4 percent for each 1,000′. above sea level. For units in Canada, CSA requires that ratings be reduced 10 percent at elevations above 2,000′. The high altitude adjustment instructions and pressure switch kits listed in this manual are for use with units that will be installed over 2,000′. These methods and kits comply with both ANSI Z223.1 and CSA requirements.
If a unit is to be installed at higher elevations AND converted from natural gas to propane gas operation, a propane conversion kit must be used in conjunction with the pressure adjustment methods and pressure switch kits listed herein. For the selection and installation instructions for propane conversion kits, please see the latest revision of Modine Manual 75-515.
Selection of the Proper Pressure and Kit
To determine the proper manifold pressure at altitude and if required, the proper combustion air pressure switch kit, the full model number of the heater, the fuel to be used, and the altitude the unit will be installed at must be known. Refer to the unit serial plate or carton label to obtain the necessary information about the unit.
After obtaining this information, refer to the gas pressure and selection charts shown in Tables 12.1 through 13.1. The pressure charts are differentiated by elevation, fuel type, and country the product is being installed in. The selection charts are differentiated by product type, altitude and fuel type. If converting from natural gas to propane gas and operation at high altitude, both a propane conversion kit and a pressure switch kit must be used (if applicable). Selection charts include the proper kit suffix, when required.
Table 12.1 – Natural Gas Heating Values at Altitude jlm

Manifold Pressure Adjustment
The inlet pressure to the unit must be confirmed to be within acceptable limits (6-7″ W.C. for natural gas and 11-14″ W.C. for propane gas) before opening the shutoff valve or the combination gas valve may be damaged.
Heaters for use with natural gas have gas valves that need to be feild set at 3.5″ W.C. manifold pressure at 7.0″ W.C. inlet pressure.
Units for use with propane gas need to be feild set for 10.0″ W.C. manifold pressure at 14.0″ W.C. inlet pressure.
Installation above 2,000′ elevation requires adjustment of the manifold pressure as described.
Derated BTU Content Gas and Manifold Pressure Calculation
Some utility companies may derate the BTU content (heating value) of the gas provided at altitude to a value other than 1,050 BTU/ft3 for natural gas or 2,500 BTU/ft3 for propane gas to allow certain heating appliances to be used with no manifold pressure adjustments. For this reason it is necessary that the supplying utility be contacted for detailed information about the gas type and BTU content (heating value) before operating any heater. Tables 12.1 and 12.2 show the standard derated heating values (4% per 1,000′ of elevation in the USA and 10% between 2,001′ and 4,500′ elevation in Canada) of natural and propane gases at various altitudes. If the utility is supplying gas with heating values as shown in Tables 12.1 and 12.2, the manifold pressure should be set to 3.5″ W.C for natural gas and 10.0″ W.C. for propane gas.
NOTE: Only the high fire gas pressure need be adjusted, low fire gas pressure should remain the same.
Table 12.2 – Propane Gas Heating Values at Altitude klm

Altitude (ft)
0-2,000 2,001-3,000 3,001-4,000 4,001-4,500 4,501-5,000 5,001-6,000 6,001-7,000 7,001-8,000 8,001-9,000 9,001-10,000 10,001-11,000 11,001-12,000 12,001-13,000

Gas Heating Values at Altitude (BTU/ft3)

USA

Canada

1,050

1,050

929

892

945

874

856

856

822

822

789

789

757

757

727

727

698

698

670

670

643

643

618

618

Altitude (ft)
0-2,000 2,001-3,000 3,001-4,000 4,001-4,500 4,501-5,000 5,001-6,000 6,001-7,000 7,001-8,000 8,001-9,000 9,001-10,000 10,001-11,000 11,001-12,000 12,001-13,000

Gas Heating Values at Altitude (BTU/ft3)

USA

Canada

2,500

2,500

2,212

2,123

2,250

2,080

2,038

2,038

1,957

1,957

1,879

1,879

1,803

1,803

1,731

1,731

1,662

1,662

1,596

1,596

1,532

1,532

1,471

1,471

13,001-14,000

593

593

13,001-14,000

1,412

1,412

j Values shown are for 3.5″ W.C. manifold pressure, for other BTU content values (available from local utility) use Equation 13.1 to calculate manifold pressure. k Values shown are for 10.0″ W.C. manifold pressure, for other BTU content values (available from local utility) use Equation 13.1 to calculate manifold pressure. l When installed at altitudes above 2,000′, a pressure switch may need to be changed. Refer to Table 13.1 to determine if a switch change is required. m Gas heating values are derated 4% per 1,000′ of elevation in the USA and 10% between 2,000′ and 4,500′ elevation in Canada in accordance with ANSI Z223.1
and CSA-B149, respectively.

12

6-560.14

INSTALLATION – HIGH ALTITUDE ACCESSORY KIT

If the heating value of the gas being supplied is different than the values shown in Tables 12.1 and 12.2, use the following equation to determine the appropriate manifold pressure for the altitude and gas heating value being supplied.
Equation 13.1 – Manifold Pressure for Derated Gas

WHERE:

MPACT

= Manifold Pressure (in. W.C.) at Altitude ­ Manifold pressure setting for the heater being installed

BTUTBL = BTU/ft3 Content of Gas ­ Obtained from Tables 11.1 or 11.2 (whichever is applicable)

BTUACT = BTU/ft3 Content of Gas ­ Obtained from the local utility company

MPSL = Manifold Pressure (in. W.C.), at Sea Level ­ Use 3.5″ W.C. for Natural Gas and 10.0″ W.C. for propane gas

Table 13.1 – High Altitude Kits for PTP and BTPj

US and Canada Altitude (ft)
0-2,000

150
Item Code not required

175
Item Code not required

Model Size

200
Item Code not required

250
Item Code not required

300
Item Code not required

350 400

Item Code

Item Code

not re- not re-

quired quired

2,001-4,500 67248 67248 67248 67248 67248 67248 68413

4,501-5,500 67248 67248 67248 67248 67248 67248 68413

5,501-6,500 67248 67248 67248 67248 68412 67248 68413

6,501-7,500 7,501-8,500 8,501-9,500

67248 67248 67248 67248 68412 67248 68413 68411 67248 67248 67248 68412 77787 N/A 68411 67248 55941 77785 68412 77787 N/A

9,501-10,000 68411 67248 55941 77785 68412 77787 N/A 10,001-11,000 68411 67248 55941 77785 68412 77787 N/A

11,001-12,000 68411 68411 55941 77785 55949 77787 N/A

12,001-13,000 68411 68411 55941 77785 55949 77787 N/A 13,001-14,000 68411 68411 55941 77785 55949 77787 N/A

j For Label Only(67248) kits, Modine part number 5H0807146005 is required to
be filled out and attached to the unit by the installer. Please contact the local Modine representative at 1.866.828.4328 (HEAT).

NOTE: Only the primary manifold pressure should be adjusted on units equipped with two-stage or modulating gas controls. No adjustments to the low fire manifold pressure are necessary on these units.

6-560.14

13

INSTALLATION – ELECTRICAL CONNECTIONS
ELECTRICAL CONNECTIONS
WARNING
1. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.
2. All appliances must be wired strictly in accordance with wiring diagram furnished with the appliance. Any wiring different from the wiring diagram could result in a hazard to persons and property.
3. Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105°C.
4. Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% greater than rated voltage.

Figure 14.1 – Contractor Convenience Box with Toggle Switch

SUPPLY CONDUIT POWER ENTRY KNOCKOUTS

UNIT ON/OFF SWITCH

TERMINAL BOARD FOR LOW VOLTAGE CONTROL WIRING

INDICATOR LIGHT
GREEN: POWER YELLOW: CALL FOR HEAT

CAUTION
Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% less than the rated voltage.
1. Installation of wiring must conform with local building codes, or in the absence of local codes, with the National Electric Code ANSI/NFPA 70 – Latest Edition. Unit must be electrically grounded in conformance to this code. In Canada, wiring must comply with CSA C22.1, Part 1, Electrical Code.
2. Two copies of the unit wiring diagram are provided with each unit. One is located in the side access control compartment and the other is supplied in the literature packet. Refer to this diagram for all wiring connections.
3. Make sure all multi-voltage components (motors, transformers, etc.) are wired in accordance with the power supply voltage.
4. The power supply to the unit must be protected with a fused or circuit breaker switch.
5. The power supply must be within 5 percent of the voltage rating and each phase must be balanced within 2 percent of each other. If not, advise the utility company.
6. External electrical service connections that must be installed include:
a. Supply power connection (115, 208, 230, 460, or 575 volts).
b. Connection of thermostats, or any other accessory control devices that may be supplied (24 volts).
NOTE: All units with supply voltage 208V and greater must use a field installed step-down transformer, available as a separate accessory.
7. Refer to Figure 14.1 for the junction box wiring entry location.
8. All supply power electrical connections are made in the junction box compartment of the unit. The low voltage (thermostat and accessory control devices) can be wired to the terminals on the junction box.
9. Power Vented models include a factory installed on/off toggle switch. The function of this switch is to disconnect power to the unit for maintenance or to shut the unit off in warm weather. Toggle switch is rated at 15 amps at 125 volts or up to 3/4 HP at 125 volts.

14

6-560.14

INSTALLATION WITH DUCTWORK
Figure 15.1- Typical Duct & Airflow Installation
Recommended Installations

A
TURNING VANES 3″ MIN.

3″ MAX.

A

B

12″ MIN.

SIDE VIEW

D

3″ MAX. B

B

3″ MIN. 12″

12″ MIN.

TURNING VANES
BAFFLE

A
SIDE VIEW

E
30,5 CM MIN.
B

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

12″ B MIN.

TURNING VANES

A

BAFFLE

TOP VIEW
F
30,5 CM MIN.

B

A

BAFFLE
SIDE VIEW

TURNING VANES

A

BAFFLE
SIDE VIEW

TURNING VANES
TOP VIEW

IMPORTANT
Do not attempt to attach ductwork of any kind to propeller models.
When installing the heater, always follow good duct design practices for even distribution of the air across the heat exchanger. Recommended layouts are shown in Figure 14.1. 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 Figure 15.1).
2. Provide removable access panels in the ductwork on the downstream side of the unit heater. These openings should be large enough to view smoke or reflect light inside the casing to indicate leaks in the heat exchanger and to check for hot spots on exchanger due to poor air distribution or lack of sufficient air.
3. If ductwork is connected to the rear of the unit use Modine blower enclosure kit or if using field designed enclosure maintain dimensions of blower enclosure as shown on page 25.
Additional Requirements for Installation of Blower Models (model BTP)
Determining Blower Speed
The drive assembly and motor on gas-fired blower unit heaters with motors 2HP and below are factory assembled. 3HP and larger motors are shipped loose to prevent shipping damage. 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 page 22 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 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 BTP 350 unit, operating with no external static pressure, that is, no duct work, filters, 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 -207 drive, and the drive sheave must be set at 2.5 turns open to achieve a blower speed of 960 rpm (see performance table for units with or without blower enclosure, page 22). See “Blower Adjustments” on page 16 for setting of drive pulley turns open.
If a blower unit is to be used with ductwork or filters, 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.
If Modine filters are used, the expected pressure loss through the filters is included in the performance data on page 17. If filters 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, a model BTP 350 is to be used with a Modine supplied blower enclosure and Modine supplied filters attached to ductwork. The unit is to move 6481 cfm of air flow against an external static pressure of 0.2″ W.C. Also, 0.2″ W.C. must be added for the filter pressure drop for a total of 0.4″ W.C. total pressure drop. Entering the performance table on page 19 for a BTP 350, at 6481 cfm and 0.4″ W.C. static pressure, it is seen that the unit will require a 5 hp motor using a -207 drive, and the motor sheave should be set at .5 turns open to achieve a blower speed of 1050 rpm. You can see this example differs from similar conditions in paragraph 2 by the number of turns open and a higher rpm, which is needed to overcome the added external static pressure from the filters.

6-560.14

15

INSTALLATION
To Install
1. Remove and discard the motor tie down strap and the shipping block beneath the motor adjustment screw (not used on all models.)
2. For 3 and 5 HP motors, affix sheave to the motor shaft and install motor on the motor mounting bracket. Install belt on blower and motor sheaves.
Figure 16.1 – Blower Model

MOUNTING BRACKETS ON BLOWER ASSEMBLY

MOTOR MOUNTING BRACKET

BLOWER SHEAVE

BLOWER HOUSING

MOTOR ADJUSTMENT
SCREW

ADJUSTABLE MOTOR SHEAVE

3. Adjust motor adjusting screw for a belt deflection of approximately 3/4″ with 5 pounds of force applied midway between the sheaves (refer to Figure 16.3). 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.
4. 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.
5. Make electrical connections according to the wiring diagram.
6. 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.
7. 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.
8. It is the installer’s 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 27 for model number nomenclature) and matching that number with those shown on page 17. From the listing, the drive number can be determined.

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 16 and to “Performance Data” 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 16.2).
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 16.3). 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 pages 18 and 19 to assure actual desired air flow is being achieved.
11. If adjustments are required, recheck motor amps after final blower speed adjustment.
Figure 16.2 – Motor Sheave Adjustment

TOWARD MOTOR

SET SCREW

ADJUSTABLE HALF OF SHEAVE
Figure 16.3 – Belt Tension Adjustment

3/4″ DEFLECTION WITH 5 LBS. FORCE

16

6-560.14

BLOWER PERFORMANCE DATA – MODEL BTP

Table 17.1 – Power Code Description – Blower Model BTP –

Power Code
01 02 08 11 13 19 22 24 30 33 35 41 44 52 55 63 66 74 77

Voltage Phase

115

1

115/230

1

208-230/460 3

575

3

115/230

1

208-230/460 3

575

3

115/230

1

208-230/460 3

575

3

115/230

1

208-230/460 3

575

3

208-230/460 3

575

3

208-230/460 3

575

3

208-230/460 3

575

3

BTP150

HP Drive

1/4 230

1/3 230

1/3 230

1/3 231

1/3 232

1/3 232

1/3 233

1/2 229

1/2 229

1/2 229

1 175

1 253

1 253

–

–

–

–

–

–

–

–

–

–

–

–

BTP175

HP Drive

–

–

1/3 238

1/3 238

1/3 239

1/2 229

1/2 229

1/2 229

1 175

1 253

1 253

1 1/2 237

1 1/2 234

1 1/2 234

–

–

–

–

–

–

–

–

–

–

–

–

BTP200

HP Drive

–

–

1/2 233

1/2 233

1/2 233

1

229

1

259

1

259

1

175

1

253

1

253

1 1/2 235

1 1/2 236

1 1/2 236

–

–

–

–

–

–

–

–

–

–

–

–

For selection of correct power code, refer to the tables on pages 18-19.

BTP250

HP Drive

–

–

1/2 204

1/2 204

1/2 204

1

241

1

258

1

258

1.5 23

1.5 177

1.5 177

–

–

2

180

2

180

–

–

–

–

–

–

–

–

–

–

–

–

BTP300

HP Drive

–

–

1

240

1

257

1

257

1

241

1

258

1

258

1 1/2 243

1 1/2 244

1 1/2 244

1 1/2 23

1 1/2 177

1 1/2 177

2

177

2

177

3

112

3

112

–

–

–

–

BTP350

HP Drive

–

–

1 1/2 250

1 1/2 251

1 1/2 251

1 1/2 247

1 1/2 248

1 1/2 248

1 1/2 252

1 1/2 180

1 1/2 180

–

–

2

177

2

177

2

180

2

180

3

246

3

246

5

245

5

245

BTP400

HP Drive

–

–

1 1/2 247

1 1/2 248

1 1/2 248

–

–

2

177

2

177

–

–

3

246

3

246

–

–

5

245

5

245

–

–

–

–

–

–

–

–

–

–

–

–

Table 17.2 – Filter Static Pressure Drop

Filter Static (“W.C.)

BTP150 0.1

BTP175 0.2

BTP200 0.1

BTP250 0.2

BTP300 0.2

BTP350 0.2

BTP400 0.2

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.

6-560.14

17

BLOWER PERFORMANCE DATA – MODEL BTP

Table 18.1 – Blower Model BTP 150-250 (40-55°F temp rise for 250 size unit) –

External Static Pressure (“W.C.)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Model Size ATR CFM 40 2778
45 2469

HP RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns HP

1 573 175 4.5 615 175 4.0 658 175 3.0 699 175 2.5 738 175 1.5 775 175 1.0 810 175 0.5 –

–

–

1

1/2

229 4.0

229 3.0

–

–

–

–

–

–

–

–

–

–

–

–

1/2

1 510 –

–

558

606

650

692

731

769

806

175 4.5

175 4.0

175 3.0

175 2.5

175 2.0

175 1.0

175 0.5

1

1/3

232 4.0

–

–

–

–

–

–

–

50 2222

230 1.0

–

–

–

–

–

–

1/2

460 229

5.0

513 229

4.0

565 229

3.0

612 229

2.0

656

–

–

–

–

–

699

–

–

–

–

–

–

739

–

–

–

–

–

–

779

–

–

–

1/3

–

–

1/2

1

–

–

–

–

175 4.5

175 4.0

175 3.0

175 2.5

175 1.5

175 1.0 1

1/4k

230 2.5

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1/4

55 2020

1/3

232 5.0

232 3.5

232 2.0

418 230 2.5 477 230 0.5 532 –

– 582

–

–

–

– 629 –

–

–

– 674 –

–

–

– 717 –

–

–

– 759 –

–

1/3

–

1/2

–

–

229 5.0

229 3.5

229 2.5

229 1.5

229 1.0

–

–

–

–

1/2

1

–

–

–

–

175 5.0

175 4.5

175 3.5

175 3.0

175 2.0

175 1.0 1

150

1/4k

230 3.5

230 1.5

–

–

–

–

–

–

–

–

–

–

–

–

1/4

60 1852

1/3

–

–

232 4.0

232 2.5

232 1.5

384 230 3.5 448 230 1.5 506 230 0.0 559 –

– 609

–

–

–

– 656 –

–

–

– 701 –

–

–

– 741 –

–

1/3

–

1/2

–

–

–

–

229 4.0

229 3.0

229 2.0

229 1.0

229 0.5

–

–

1/2

1

–

–

–

–

–

–

175 5.0

175 4.0

175 3.0

175 2.5

175 1.5 1

1/4k

230 4.0

230 2.0

230 0.5

–

–

–

–

–

–

–

–

–

–

1/4

65 1709

1/3

230 4.0

232 4.5

232 3.0

232 2.0

232 1.0

–

–

–

–

1/2 354 –

423

–

–

485

540

592

642

690

735

–

229 4.5

229 3.5

229 2.5

229 1.5

229 0.5

–

–

1/3

–

1/2

1

–

–

–

–

–

–

175 5.0

175 4.0

175 3.5

175 2.5

175 1.5 1

1/4k

230 5.0

230 3.0

230 1.0

–

–

–

–

–

–

–

–

–

–

1/4

70 1587

1/3

230 5.0

232 5.0

232 3.5

232 2.5

232 1.0

232 0.0

–

–

–

–

1/2 329 –

403

–

–

467

525

580

635

680

722

–

229 5.0

229 4.0

229 2.5

229 1.5

229 0.5

229 0.0

1/3 1/2

1

–

–

–

–

–

–

–

–

175 4.5

175 3.5

175 2.5

175 2.0 1

40

3241

1

175

1-1/2 625 –

3.5 –

175 655
–

3.0 –

175 690
–

2.5 –

727
237

5.0

764
237

4.5

799
237

3.5

834
237

2.5

866
237

2.0

1 1-1/2

45

2881

1

175

1-1/2 555 –

5.0 –

175 589
–

4.5 –

175 630
–

3.5 –

175 672
–

3.0 –

175 712
–

2.0 –

175 750
237

1.5 4.5

786
237

4.0

821
237

3.0

1 1-1/2

1/2

229 4.5

229 3.5

–

–

–

–

–

–

–

–

–

–

–

–

1/2

50 2593 1 500 –

– 538 175 5.0 584 175 4.5 630 175 3.5 673 175 3.0 713 175 2.0 751 175 1.5 788 175 0.5 1

1-1/2

–

–

–

–

–

–

–

–

–

–

–

–

237 4.5

237 4.0 1-1/2

1/3

238 2.5

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1/3

55 2357

1/2

229 5.0

229 4.5

229 3.5

229 2.5

–

–

–

–

–

–

–

–

1 454 –

497

–

–

548

597

642

684

724

763

–

175 5.0

175 4.0

175 3.5

175 2.5

175 2.0

175 1.0

1/2 1

1-1/2

–

–

–

–

–

–

–

–

–

–

–

–

237 5.0

237 4.5 1-1/2

175

1/3

238 4.0

238 2.5

–

–

–

–

–

–

–

–

–

–

–

–

1/3

60 2160

1/2 1 416

–

–

229 5.0

229 4.0

229 3.0

229 2.0

229 1.0

–

–

–

–

1/2

464

–

–

520

–

–

–

571

618

662

705

745

175 4.5

175 4.0

175 3.0

175 2.0

175 1.5

1

1-1/2

–

–

–

–

–

–

–

–

–

–

–

–

–

–

237 4.5 1-1/2

1/3

238 4.5

238 3.0

238 1.5

238 0.0

–

–

–

–

–

–

–

–

1/3

65 1994

1/2 1 384

–

–

–

438

–

–

–

229 4.5

229 3.5

229 2.5

229 1.5

229 0.5

–

–

1/2

497

–

–

–

550

599

645

690

733

175 5.0

175 4.0

175 3.5

175 2.5

175 1.5

1

1-1/2

–

–

–

–

–

–

–

–

–

–

–

–

–

–

237 5.0 1-1/2

1/3

238 5.0

238 3.5

238 2.0

238 0.5

–

–

–

–

–

–

–

–

1/3

70 1852 1/2 356 –

– 415 –

– 477 229 5.0 533 229 3.5 584 229 2.5 632 229 1.5 678 229 1.0 728 –

–

1/2

1

–

–

–

–

–

–

–

–

175 4.5

175 3.5

175 3.0

175 2.0 1

40 3704 1-1/2 715 235 3.5 741 235 2.5 770 235 2.0 –

–

–

–

–

–

–

–

–

–

–

–

–

–

– 1-1/2

45 3292

1

175 3.5

175 3.0

–

635 229 1.5 665 229 1.0 698 –

–

–

– 735 –

–

–

– 772 –

–

–

– 807 –

–

–

– 841 –

–

–

– 873 –

1-1/2

235 5.0

235 3.0

235 4.0

235 3.0

235 2.0

235 1.0

235 0.0

–

–

1

–

– 1-1/2

50 2963

1

175 4.5

175 4.0

175 3.5

175 2.5

175 2.0

175 1.5

–

571 229 3.0 604 229 2.5 643 229 1.5 684 229 0.5 723 229 0.0 761 –

– 797 –

–

–

– 831 –

–

1

1-1/2

–

–

–

–

235 5.0

235 4.0

235 3.0

235 2.0

235 1.5

235 0.5 1-1/2

1/2

233 2.5

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1/2

55 2694

1 519 –

–

175 5.0

175 4.0

175 3.5

175 2.5

175 2.0

175 1.0

175 0.5

556

600

644

686

725

763

799

1

229 4.0

229 3.0

229 2.5

229 1.5

229 0.5

229 0.0

–

–

–

–

1-1/2

–

–

–

–

–

–

235 5.0

235 4.0

235 3.0

235 2.0

235 1.0 1-1/2

200

1/2

233 2.5

233 2.5

233 1.5

–

–

–

–

–

–

–

–

–

–

1/2

60 2469

1 475 –

–

–

516

–

175 4.5

175 4.0

175 3.0

175 2.5

175 1.5

175 1.0

565

612

656

697

736

774

1

229 5.0

229 4.0

229 3.0

229 2.0

229 1.0

229 0.5

–

–

–

–

1-1/2

–

–

–

–

–

–

–

–

235 5.0

235 4.0

235 3.0

235 2.0 1-1/2

1/2

233 4.5

233 3.5

233 2.0

233 1.0

233 0.0

–

–

–

–

–

–

1/2

65 2279

1 439 –

–

–

484

–

175 5.0

175 4.5

175 3.5

175 2.5

175 2.0

175 1.5

537

586

632

675

716

756

1

–

229 4.5

229 3.5

229 2.5

229 1.5

229 1.0

229 0.0

–

–

1-1/2

–

–

–

–

–

–

–

–

–

–

235 4.5

235 3.5

235 2.5 1-1/2

1/2

233 5.0

233 4.0

233 2.5

233 1.5

233 0.5

–

–

–

–

–

–

1/2

70 2116

1 407 –

–

–

457

–

–

513

–

175 4.5

175 4.0

175 3.0

175 2.5

175 1.5

565

612

657

700

742

1

–

229 5.0

229 4.0

229 3.0

229 2.0

229 1.0

229 0.5

–

–

1-1/2

–

–

–

–

–

–

–

–

–

–

235 5.0

235 3.5

235 2.5 1-1/2

40

4630

1-1/2 2 542

23 –

4.5

23

569

–

–

4.0

23 3.0

–

–

–

–

–

–

–

–

–

– 1-1/2

–

599

629

658

688

716

744

180 4.5

180 4.0

180 3.0

180 2.0

180 1.5

180 0.5

2

1

241 3.5

241 2.5

–

–

–

–

–

–

–

–

–

–

–

–

1

45 4115 1-1/2 482 –

– 513 –

– 546 23 4.5 580 23 3.5 613 23 2.5 645 23 1.5 675 23 0.5 704 –

– 1-1/2

2

–

–

–

–

–

–

180 5.0

180 4.5

180 3.5

180 2.5

180 1.5 2

250

1

241 4.5

241 3.5

241 3.0

241 2.0

241 1.0

–

50 3704 1-1/2 433 –

– 468 –

– 506 –

– 543 23 4.5 578 23 3.5 612 23

–

–

2.5 644 23

–

–

1.5 674 23

–

1

0.5 1-1/2

2

–

–

–

–

–

–

–

–

180 5.0

180 4.5

180 3.5

180 2.5 2

1/2

204 3.0

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1/2

55

3367

1

241

1-1/2 394 –

5.0 –

241 432
–

4.5 –

241 474
–

3.5 –

241 513
–

2.5 –

241 551
23

1.5 4.5

241 586
23

1.0 3.5

241 0.0

–

620

652

23 2.0

23

–

1

1.0 1-1/2

2

–

–

–

–

–

–

–

–

–

–

180 5.0

180 4.0

180 3.0 2

Table 18.2 – Alternate Drives for 208230/460V 3 Ph, 1 HP Motors

Model BTP150 BTP175 BTP200 BTP250

1 HP Drive Listed

1 HP Drive for 230/460V

175 =

253

175 =

253

175 =

253

229 =

259

241 =

258

Table 18.3 – Alternate Drives for 208230/460V 3 Ph, 1-1/2 HP Motors

Model BTP150 BTP175 BTP200 BTP250

1-1/2 HP Drive 1-1/2 HP Drive for

Listed

230/460V

–

=

–

237 =

234

235 =

236

23

=

177

Table 18.4 – Alternate Drives for 575V

Drive for Under

Model

575V

Drive for 575V

BTP150

175 =

253

230 =

231

232 =

233

BTP175

175 =

253

237 =

234

238 =

239

BTP200

175 =

253

229 =

259

235 =

236

BTP250

23

=

177

241 =

258

j Outputs shown are for elevations up to 2000′. For elevations over 2000′, output needs to be reduced 4% for each 1000′ above sea level. (Does not apply in Canada – see rating plate).
k Sheave turns open are approximate. For proper operation, check blower rpm.
l For 230/460V (1 HP and 1-1/2 HP) or 575V selections, see Tables 18.2, 3, & 4 for the corrected drive number.

18

6-560.14

BLOWER PERFORMANCE DATA

BLOWER PERFORMANCE DATA – MODEL BTP

Table 19.1 – Blower Model BTP 250-400 (60-70°F temp rise for 250 size unit) –

External Static Pressure (“W.C.)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Model Size ATR CFM

HP RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns RPM Drive Turns HP

1/2

204 4.0

204 3.0

204 1.5

–

–

–

–

–

–

–

–

–

– 1/2

Table 19.2 – Alternate

60

3086

1 1-1/2

360

–

2

–

–

241 5.0

241

403

448

–

–

–

–

–

–

4.0

241 3.0

241

490

530

–

–

–

23

–

–

–

–

2.0 5.0
–

241 566
23 –

1.5 4.0
–

241 601
23 180

0.5 3.0 4.5

635

241 23 180

0.0 2.0 2.5

1 1-1/2
2

Drives for 208230/460V

250

1/2

204 4.5

204 3.5

204

65

2849

1 1-1/2

332

–

–

–

379

–

–

–

241

427

–

–

2.0

204 1.0

–

4.5

241 3.5

241

471

512

–

–

–

–

2.5
–

241 550 23

1.5 4.5

241 587 23

1.0 3.5

241

0.0

1/2 1

3 Ph, 1 HP Motors

622 23

2.0 1-1/2

2

–

–

–

–

–

–

–

–

–

–

–

–

180 5.0

180 4.0 2

Model

1 HP Drive Listed

1 HP Drive for 230/460V

1/2

204 5.0

204 4.5

204 2.5

204 1.5

204 0.5

–

–

–

–

–

– 1/2

70

2646

1 1-1/2

308

–

–

–

359

–

–

–

241 5.0

241 4.0

241 3.0

241 2.0

241 1.0

241 0.5 1

410

–

–

456

–

–

498

–

–

–

538 23

576

5.0

23

613

3.5

23

2.5 1-1/2

2

–

–

–

–

–

–

–

–

–

–

–

–

180 5.0

180 4.5 2

40 5556

3

112 3.0

112 2.5

112 2.0

112 1.0

112

650

673

697

721

746

0.5

112

771

0.0

–

–

–

–

–

–

3

BTP300
BTP350 BTP400

240 =

257

241 =

258

–

=

–

–

=

–

177 1.5

177 0.5

177 0.0

–

–

–

–

–

–

–

–

–

–

–

–

45 4938

2 3

177 578
112

50

4444 1-1/2 520

23 243

3.5

177

604

5.0

112

5.0

23

2.5 549 243

3.0

177

631

4.5

112

4.5

23

1.5 580 243

2.0

177 1.0

177

659

687

3.5

112 3.0

112

3.5

23 2.5

23

0.0 611 –

– 642 –

0.0 2.0 1.5
–

715
112 177 672 –

1.5 0.5
–

742
112 177 701 –

0.5 0.0
–

768
112 177 729 –

– 2 Table 19.3 – Alternate

0.0 0.0
–

3 1-1/2

Drives for 208230/460V 3 Ph, 1-1/2

3 1

–

–

241 3.5

–

–

241 3.0

112 5.0 241 2.0

112 4.5

–

–

112 3.5

–

–

112 2.5

–

–

112 1.5

–

–

112 1.0

–

–

3 1

HP Motors

240 2.0

240 1.5

240 0.5

–

–

–

–

–

–

–

–

–

–

55 4040 1-1/2 473 –

– 505 –

– 538 23 5.0 573 23 3.5 606 23 2.5 638 23

243 4.0

243 3.0

243 1.5

243 0.5

243 0.0

–

1.5 669 23

–

–

0.5 698 23

–

–

0.0 1-1/2 –

3

–

–

–

–

–

–

–

–

112 4.5

112 3.5

112 2.5

112 2.0 3

1-1/2 HP Drive 1-1/2 HP Drive for

Model

Listed

230/460V

300

1

241 4.5

241 3.5

241 3.0

241 2.0

241 1.0

240 3.0

240 2.5

240 1.5

–

–

–

–

–

–

–

–

–

–

–

–

–

–

1

–

–

BTP300

23

=

177

243 =

244

60 3704 1-1/2 433 –

– 468 –

– 506 –

– 543 23 4.5 578 23 3.5 612 23

243 5.0

243 4.5

243 3.0

243 1.5

243 0.5

–

2.5 644 23

–

–

1.5 674 23

–

–

0.5 1-1/2 –

3

–

–

–

–

–

–

–

–

112 5.0

112 4.5

112 3.5

112 2.5 3

BTP350

247 =

248

250 =

251

252 =

180

1

241 5.0

241 4.5

241 3.5

241 2.5

241 1.5

241 0.5

241 0.0

240 4.0

240 3.0

240 2.0

240 1.0

240 0.0

–

–

–

–

–

–

1

–

–

65 3419 1-1/2 400 –

– 438 –

– 478 –

– 518 –

– 555 23 4.0 590 23 3.0 623 23 2.0 655 23 1.0 1-1/2

–

243 5.0

243 4.0

243 2.5

243 1.0

243 0.0

–

–

–

–

BTP400

247 =

248

250 =

251

252 =

180

3

–

1

–

–

371 240

70 3175 1-1/2 –

–

–

–

–

241

5.0

240

– 412 –

–

–

5.0

241

4.0

240

– 456 –

–

–

–

–

4.0

241 3.0

241

2.5

240 1.5

240

– 497 –

– 536 23

2.0 0.5 5.0

112 241
572 23

5.0 1.0
4.0

112 241
607 23

4.0 0.5
2.5

112 –
640 23

3.0 –

3 1

Table 19.4 – Alternate Drives for 575V

1.5 1-1/2

–

–

–

–

–

243 5.0

243 3.5

243 2.0

243 0.5

243 0.0

–

–

3

–

–

–

–

–

–

–

–

–

–

–

–

–

112 4.5

112 3.5 3

40 6481 5 721 245 3.0 739 245 3.0 757 245 2.5 777 245 2.0 797 245 1.0 817 245 0.5 838 245 0.0 860 245 0.0 5

45 5761

3 5

246 3.5

246 1.0

246 2.5

246 1.5

246 1.0

246

643

662

684

706

729

753

245 5.0

245 5.0

245 4.0

245 3.5

245 3.0

245

0.0

777

2.5

245

801

2.0

245 1.0

3 5

2

180 5.0

180 4.5

180 4.0

180 3.0

–

–

–

–

–

–

–

–

2

50 5185

3

177 3.5

177 3.0

177 2.0

177 1.0

–

–

–

579

602

626

651

678

705

–

–

–

–

–

–

–

–

246 2.5

246

–

–

731

1.5

246

–

–

–

757

1.0

246 0.0

3

5

–

–

–

–

–

–

245 5.0

245 4.5

245 3.5

245 3.0

245 2.5 5

1-1/2

247 3.5

250 0.5

247 3.0 250 0.0

247 2.0 252 5.0

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

– 1-1/2

–

–

Model BTP300
BTP350 BTP400

Drive for Under 575V

23

=

240 =

243 =

247 =

250 =

252 =

247 =

Drive for 575V 177 257 244 248 251 180 248

55 4714 2 528 –

– 553 –

– 580 –

– 608 180 4.5 638 180 3.5 667 180 2.5 696 180 2.0 724 180 1.0 2 j Outputs shown are for

177 5.0

177 4.5

177 3.5

177 2.5

177 1.5

177 1.0

177 0.0

177 0.0

elevations up to 2000′.

350

5

–

–

1-1/2

247 5.0

–

–

247 4.0

–

–

247 3.0

–

–

247 2.0

245 5.0 247 1.0

245 4.5 247 0.0

245 4.0

–

–

245 3.0 5

–

– 1-1/2

For elevations over 2000′, output needs to

250 2.5

250 1.0

250 0.0

252 5.0

252 4.5

252 3.5

252 2.5

–

–

60 4321 2 484 –

– 512 –

–

–

– 542 –

– 574 –

– 606 –

– 637 –

– 668 –

– 697 180 2.0 2

–

177 4.5

177 3.5

177 2.5

177 1.5

177 0.5

177 0.0

be reduced 4% for each 1000′ above sea

5

–

–

–

–

–

–

–

–

–

–

245 5.0

245 4.5

245 4.0 5

level. (Does not apply in

1-1/2

250 4.0

250 2.5

250 1.0

250 0.0

252 5.0

252 4.5

252 3.5

252 2.5 1-1/2

Canada – see rating plate).

65 3989

2

448

–

–

247 5.0

247 4.0

247 3.0

247 2.0

247 0.5

247 0.0

–

–

478

511

546

580

614

645

676

–

–

–

–

–

177 4.5

177 3.5

177 2.5

177 1.5

177 0.5

2

k Sheave turns open are approximate.

5

–

–

–

–

–

–

–

–

–

–

–

–

245 5.0

245 4.5 5

For proper operation,

1-1/2

250 5.0

250 4.0

250 2.5

250 1.0

–

–

252 5.0

252 4.0

252 3.0 1-1/2

check blower rpm.

70 3704

2

416

–

–

–

449

–

–

–

247 5.0

247 4.0

247 2.5

247 1.5

247 0.0

–

–

485

–

–

523

–

–

559

594

627

658

–

177 4.0

177 3.0

177 2.0

177 1.0

2

l For 230/460V (1 HP and

5

–

–

–

–

–

–

–

–

–

–

–

–

–

–

245 5.0 5

1-1/2 HP) or 575V

40 7407 5 823 245 0.5 838 245 0.0 –

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

–

5

selections, see Tables

45 6584 5 733 245 3.0 750 245 2.5 768 245 2.0 787 245 1.5 807 245 1.0 827 245 0.5 847 245 0.0 868 245 0.0 5

19.2, 3, & 4 for the

50 5926

3 5

246 3.0

246 2.5

246 1.5

246 1.0

246 0.5

–

660

680

700

722

744

767

245 5.0

245 4.5

245 3.5

245 3.0

245 2.5

245

–

–

791

2.0

245

–

–

–

814

1.5

245 0.5

3 5

corrected drive number.

2

177 3.0

177 2.0

–

–

–

–

–

–

–

–

–

–

–

–

2

55 5387 3 601 246 4.5 623 246 4.0 646 246 3.5 670 246 2.5 696 246 2.0 721 246 1.0 747 246 0.5 772 –

–

3

5

–

–

–

–

245 5.0

245 4.5

245 4.0

245 3.0

245 2.5

245 2.0 5

1-1/2

247 3.0

–

–

–

–

–

–

–

–

–

–

–

–

–

– 1-1/2

400

60 4938

2 3

177 4.5

177 3.5

177 3.0

177 2.0

177 1.0

177

552

576

601

629

656

685

–

–

246 5.0

246 4.5

246 4.0

246 3.0

246

0.0

–

712

2.0

246

–

–

–

740

1.5

246 0.5

2 3

5

–

–

–

–

–

–

–

–

245 5.0

245 4.0

245 3.5

245 2.5 5

1-1/2

247 4.5

247 3.5

247 2.5

247 1.0

247 0.5

–

–

–

–

–

– 1-1/2

65 4558

2 3

510

–

–

177 5.0

177 4.0

177 3.0

177 2.0

177 1.0

177 0.0

177 0.0 2

536

–

–

565

–

–

–

594

625

655

684

713

246 5.0

246 4.0

246 3.0

246 2.0

246 1.5

3

5

–

–

–

–

–

–

–

–

–

–

245 5.0

245 4.0

245 3.5 5

1-1/2

247 5.0

247 4.5

247 3.5

247 2.5

247 1.0

247 0.0

–

–

–

– 1-1/2

70 4233

2 3

475

–

–

–

503

–

–

–

177 5.0

177 4.0

177 3.0

177 2.0

177 1.0

177 0.0 2

534

–

–

566

–

–

–

599

631

662

691

246 4.5

246 3.5

246 3.0

246 2.0

3

5

–

–

–

–

–

–

–

–

–

–

–

–

245 4.5

245 4.0 5

6-560.14

19

OPERATION

OPERATION Prior to Operation

9. Check that all horizontal deflector blades are open a minimum of 30° as measured from vertical.
10. Turn on power to the unit at the disconnect switch.

IMPORTANT
1. To prevent premature heat exchanger failure, the input to the appliance as indicated on the serial plate, must not exceed the rated input by more than 5%.
2. Start-up and adjustment procedures must be performed by a qualified service agency.
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 power to the unit at the disconnect switch. Check
that fuses or circuit breakers are in place and sized correctly. Turn all hand gas valves to the “OFF” position. 2. Remove the side control access panel. 3. Check that the supply voltage matches the unit supply voltage listed on the Model Identification plate. Verify that all wiring is secure and properly protected. Trace circuits to insure that the unit has been wired according to the wiring diagram. If installed at altitudes above 2,000′ and the high altitude kit includes a combustion air proving switch, replace the switch in the unit with the switch provided in the kit. Take care to ensure that the tubing and electrical connections are securely fastened. 4. Check to insure that the venting system is installed correctly and free from obstructions. Before you start use the following steps to verify that the venting system is adequately sized:

11. Check the thermostat, ignition control, gas valve, and supply fan blower motor for electrical operation. If these do not function, recheck the wiring diagram.
12. Check the motor speed (rpm).
13. Check the motor voltage.
14. Check the motor amp draw to make sure it does not exceed the motor nameplate rating.
15. Recheck the gas supply pressure at the field installed manual shut-off valve. The minimum inlet pressure should be 6″ W.C. on natural gas and 11″ W.C. on propane gas. The maximum inlet pressure for either gas is 14″ W.C. If inlet pressure exceeds 14″ W.C., a gas pressure regulator must be added upstream of the combination gas valve.
16. Open the field installed manual gas shut-off valve.
17. Place the manual main gas valve on the combination gas valve in the “On” position. Call for heat with the thermostat.
18. Check to make sure that the main gas valve opens. Check the manifold gas pressure (See “Main Gas Adjustment”) while the supply fan blower is operating.
19. Check to insure that gas controls sequence properly (see “Control Operating Sequence”). 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.
20. Once proper operation of the unit has been verified, remove any jumper wires that were required for testing.
21. Replace the side control access panel.
22. If installed at altitudes above 2,000′, affix label included with high altitude kit and fill in all fields with a permanent marker.

a. Seal any unused openings in the venting system.
b. Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) or CSA B149.1 Installation Code latest edition and these instructions. Determine that there is no blockage or restriction, leakage, corrosion, or other deficiencies, which could cause an unsafe condition.
c. Insofar as practical, close all building doors and windows and all doors between the space in which the appliance(s) connected to the venting system is (are) located and other spaces of the building. Turn on clothes dryers and any exhaust fans such as range hoods and bathroom exhausts, so they shall operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.
d. Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so that the appliance will operate continuously.
e. After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-burning appliance to their previous conditions of use.
f. If improper venting is observed during any of the above tests, the venting system must be corrected.
5. Check to see that there are no obstructions to the intake and discharge of the unit.
6. Check fan clearance. Fan should not contact casing when spun by hand.
7. Check to make sure that all filters are in place and that they are installed properly according to direction of air flow (if applicable).
8. Perform a visual inspection of the unit to make sure no damage has occurred during installation. Check to ensure all fasteners are in place and the burner openings are properly aligned with the heat exchanger tubes and that the gas orifices are centered in the burner inspirator tube opening.

Main Burner Adjustment
The gas pressure regulator (integral to the combination gas control) is adjusted at the factory for average gas conditions. It is important that gas be supplied to the unit heater in accordance with the input rating on the serial plate. Actual input should be checked and necessary adjustments made after the unit heater is installed. Over-firing, a result of too high an input, reduces the life of the appliance and increases maintenance. Under no circumstances should the input exceed that shown on the serial plate.
Measuring the manifold pressure is done at the outlet pressure tap of the gas valve.
To Adjust the Manifold Pressure 1. Move the field installed manual shut-off valve to the “OFF”
position.
2. Remove the 1/8″ pipe plug from the outlet pressure tap on the gas valve and attach a water manometer of “U” tube type which is at least 12″ high.
3. Move the field installed manual gas shut-off valve to the “ON” position.
4. Create a high-fire call for heat from the thermostat.
5. Refer to Table 11.1 to determine the correct high fire manifold pressure for the gas type of the unit. Pressures at 0-2,000′ elevation are 3.5″ W.C. for natural gas, 10″ W.C. for propane gas, for elevations above 2,000′ refer to the instructions in “Gas Connections – High Altitude Accessory Kit” on page 12. Adjust the main gas pressure regulator spring to achieve the proper manifold pressure (for location, see the combination gas control literature supplied with unit).
6. After adjustment, move the field installed manual shut-off valve to the “OFF” position and replace the 1/8″ pipe plug.
7. After the plug is in place, move the field installed manual shut-off valve to the “ON” position and recheck pipe plugs for gas leaks with soap solution.

20

6-560.14

CONTROL OPERATING SEQUENCE / UNIT COMPONENTS

CONTROL OPERATING SEQUENCE
Upon a call for heat from the thermostat, power is supplied to the power exhauster motor. The unit will go through a purge period and then the direct spark igniter will be energized. At the same time, the main valve in the combination control valve will open to allow gas to flow to the burners. If the fan motor has
Figure 21.1 – Major Gas, Electrical Service, Safety and Other Components

not already started it will start shortly. If a flame is not sensed within 7 seconds for any reason the main valve will close and there will be a short purge period before ignition is tried again. If the flame is not sensed after four tries there will be at least a one hour wait before ignition is tried again.
Table 21.2 – Gas Controls – All Models

6
8 10

1
9 2

5

4

3

8

7

1. Power Exhauster 2. Pressure Switch 3. Integrated Direct Spark
Control Board 4. Combination Gas Control 5. Control Transformer

6. Flame Sensor (hidden) 7. Auto Reset Limit Control (hidden) 8. Direct Spark Igniter (hidden) 9. Gas Pipe Connection 10. Horizontal Air Deflector Blades

Control System Description
Single-Stage, Direct Spark Ignition, 100% Shut-off with Continuous Retry
Utilizes a single-stage combination gas control with ignition control. Gas is lit with a direct spark igniter on call for heat.

Gas Control Control Service Type Code Voltage Voltage Natural 11
Propane 21

Two-Stage, Direct Spark Ignition, 100% Shut-off with Continuous Retry

Natural 12

Utilizes a two-stage combination gas control with built-in ignition control. Firing rate is 100% and Propane 22 50% of full rated input. Gas is lit with a direct spark igniter on call for heat.

24V 115V

6-560.14

21

GENERAL PERFORMANCE DATA – MODELS PTP & BTP
Table 22.1 – Propeller Unit Model PTP General Performance Data

Btu/Hr Input Btu/Hr Ouput Entering Airflow (CFM) @
70°F Outlet Velocity (FPM) Air Temp. Rise (°F)

150 150,000 123,000
2140
711 53

Max. Mounting Height (Ft.) 15

Heat Throw (Ft.) @ Max Mtg Ht

51

Motor Type

PSC

Motor HP

1/6

Motor RPM

1075

175 175,000 143,500
2725 607 48 14
50 PSC 1/6 1075

Model PTP Sizes

200

250

300

200,000 250,000 300,000

164,000 207,500 249,000

2870

3995

4545

643

721

824

52

47

50

15

18

19

53

62

69

PSC

PSC

PSC

1/3

1/3

1/2

1075

1075

1075

350 350,000 290,500
5280 748 50 18
65 PSC 1/2 1125

400 400,000 332,000
5995 851 51 21
74 PSC 3/4 1125

Table 22.2 – Blower Unit Model BTP General Performance Data

Btu/Hr Input j Btu/Hr Ouput j

150 150,000 123,000

175 175,000 143,500

200 200,000 164,000

Model BTP Sizes 250
250,000 205,000

300 300,000 246,000

350 350,000 287,000

400 400,000 328,000

Entering Airflow Low Mid High Low Mid High Low Mid High Low Mid High Low Mid High Low Mid High Low Mid High (CFM) @ 70°F
1587 2020 2778 1852 2357 3241 2116 2694 3704 2646 3367 4630 3175 4040 5556 3704 4714 6481 4233 5387 7407

Outlet Velocity (FPM)

543 674 903 428 531 711 489 607 813 497 617 826 596 740 991 543 674 903 621 770 1032

Air Temp. Rise (°F) 70 55 40 70 55 40 70 55 40 70 55 40 70 55 40 70 55 40 70 55 40

Max. Mounting Height (Ft.) k

9 13 21

8 11 18 9

13 21 10 14 22 11 16 26 11 16 25 12 18 29

Heat Throw (Ft.) (@ Max Mtg Ht)

33

47

75

28

40

65

32

46

74

34

48

78

40

58

94

39

55

89

44

63 102

Ratings shown are for elevations up to 2,000′. For elevations above 2,000′, ratings should be reduced at the rate of 4% for each 1,000′ above sea level (in Canada see rating plate.) Reduction of ratings requires use of a high altitude kit.
Data taken at 55°F air temperature rise. At 65°F ambient and unit fired at full-rated input. Mounting height as measured from bottom of unit, and without deflector hoods. For units equipped with deflector hoods, see page 23.

22

6-560.14

PERFORMANCE DATA – DEFLECTOR HOODS
Figure 23.1 – 30°, 60°, and 90° Downward Deflector Hoods

Figure 23.3 – 90° Hood Throw/Floor Coverage

30° HOOD

60° HOOD

90° HOOD

Figure 23.2 – 30° and 60° Throw/Floor Coverage

30 DOWNTURN 60 DOWNTURN

30

MOUNTING

60

HEIGHT

H

S

S

X 60 DOWNTURN Y

Z

X

30 DOWNTURN

Y

Note: X = Feet from Heater to Start of Floor Coverage Y = Feet to End of Floor Coverage Z = Feet to End of Throw
Table 23.1 – Deflector Hood General Performance Data – Model BTP

Model Airflow Size
(cfm) 150 2020 175 2357 200 2694 250 3367 300 4040
350 4714
400 5387

Temp Rise (°F) 55 55 55 55
55
55
55

Mounting Height (ft) 8 10 12 14 15 8 10 12 13 8 10 12 14 15 8 10 12
14
15 8 10 12 14 16
18 8 10 12 14 16 18 8 10 12 14 16 18
20

Blade 30° Hood

60° Hood

Angle X Y Z X Y Z

(°) (ft) (ft) (ft) (ft) (ft) (ft)

57 13 29 40 0 31 42

48 12 28 38 0 28 39 37 10 25 35 0 25 34

21 8 21 30 0 19 27

10 7 19 27 0 12 18

51 11 24 33 0 25 34 39 9 22 31 0 22 30 22 7 19 26 0 17 23 2 5 14 21 0 10 14 57 13 29 39 0 30 41 47 12 27 37 0 28 38 35 10 25 34 0 24 33 18 7 20 29 0 18 25 2 5 16 24 0 11 16 59 14 31 42 0 32 44

50 13 29 40 0 30 41

39 11 27 37 0 27 37

25 9 23 33 0 22 30

15 7 20 29 0 18 25

64 17 37 51 0 40 54

57 16 36 50 0 38 52

50 15 35 48 0 36 49

41 13 33 45 0 33 45

30 12 30 41 0 28 39

14 9 24 35 0 21 29

63 16 36 49 0 37 51 55 15 34 47 0 36 49

47 14 33 45 0 33 46

37 12 30 42 0 30 41

25 10 27 38 0 25 34

2 6 20 29 0 13 19

67 19 41 56 0 44 60

60 18 40 55 0 42 58

53 17 39 53 0 40 55

46 15 37 51 0 37 51

37 14 34 48 0 34 47

26 12 31 43 0 29 40

8 8 23 34 0 20 28

Z
90° Hood S (ft) 21 19 17 16 15 17 15 14 13 20 18 17 15 15 22 20 18 17 16 29 26 23 22 20 19 27 24 22 20 19 18 32 29 26 25 23 22 21

Table 23.2 – Deflector Hood General Performance Data – Model PTP

Model Size

Airflow (cfm)

Temp Rise
(°F)

Mounting Height
(ft)

Blade Angle
(°)

30° Hood XYZ (ft) (ft) (ft)

60° Hood XYZ (ft) (ft) (ft)

90° Hood S (ft)

8

60 15 32 44 0 34 47 24

10

150 2139 53

12

52 13 31 42 0 32 44 21 42 12 29 40 0 29 40 19

14

30 10 26 36 0 25 34 18

16

9

7 20 29 0 17 24 17

8

60 14 32 43 0 33 46 23

10

175 2726 48

12

51 13 30 42 0 31 43 21 41 12 28 39 0 28 39 19

14

29 10 25 35 0 24 33 17

16

8

6 17 26 0 15 21 16

8

59 14 30 42 0 32 44 22

200 2780 52

10

49 12 29 40 0 30 41 19

12

39 11 27 37 0 26 36 18

14

24 9 23 33 0 21 30 16

8

66 19 41 56 0 43 59 32

10

60 18 40 54 0 42 57 29

12

53 17 38 53 0 40 54 26

250 3994 47

14

46 15 36 50 0 37 51 24

16

37 14 34 47 0 33 46 23

18

26 12 31 43 0 28 40 21

20

8

10

12

300 4543 50

14

16

18

20

22

8

10

12

350 5278 50

14

16

18

20

21

8

10

12

14

400 5995 51

16

18

20

22

23

8

7 22 32 0 19 26 20

69 22 45 62 0 48 66 37

63 21 44 61 0 47 64 33

57 19 43 59 0 45 62 30

51 18 42 57 0 43 59 28

44 17 40 55 0 40 55 26

35 15 37 52 0 36 50 25

25 13 33 47 0 31 43 24

9

8 25 37 0 21 30 23

68 20 43 58 0 45 62 34

61 19 42 57 0 44 60 31

55 18 40 55 0 42 58 28

48 17 39 53 0 40 54 26

40 15 37 51 0 36 50 24

31 13 34 47 0 32 44 23

17 10 29 41 0 25 35 22

2

7 23 34 0 18 26 21

70 24 49 66 0 52 71 41

65 22 48 65 0 51 69 37

59 21 47 64 0 49 67 34

54 20 45 62 0 47 64 31

47 19 44 60 0 44 61 29

40 17 41 57 0 41 57 28

32 15 38 54 0 37 51 26

21 13 34 48 0 31 43 25

13 11 31 44 0 26 37 24

Note: Refer to Figures 23.2 through 23.3.

Note: Refer to Figures 23.2 through 23.3.

6-560.14

23

DIMENSIONAL DATA – MODEL PTP AND BTP
Propeller Units – Model PTP
Figure 24.1 – Dimensional Drawings

Table 24.1 – Dimensions (inches) – PTP

Models A B C D E F
G (Mounting Hole) k H I M
Q l R S T U
Gas Connection Vent Connector Size
Fan Diameter Approx. Shipping Weight (lbs.)

PTP150 35.53 23.06 22.05 22.52 16.20 15.33 3/8-16 8.37 4.50 31.79 43.79 3.56 14.90 10.00 13.54
1/2 4″ 20.00 165

PTP175 42.53 25.81 22.05 29.52 18.95 16.70 3/8-16 8.37 4.50 32.83 44.83 3.56 14.90 10.00 20.53
1/2 4″ 22.00 210

PTP200 42.53 25.81 22.05 29.52 18.95 16.70 3/8-16 8.37 4.50 34.43 46.43 3.56 14.90 10.00 20.53
1/2 4″ 22.00 220

PTP250 42.53 31.31 22.05 29.52 24.46 19.45 3/8-16 8.37 4.50 33.83 45.83 3.56 14.90 10.00 20.53
3/4 6″ 22.00 265

PTP300 42.53 31.31 22.05 29.52 24.46 19.45 3/8-16 8.37 4.50 33.83 45.83 3.56 14.90 10.00 20.53
3/4 6″ 22.00 270

PTP350 42.53 39.56 22.05 29.52 32.71 23.58 3/8-16 8.37 4.50 34.83 46.83 3.56 14.90 10.00 20.53
3/4 6″ 24.00 310

PTP400 42.53 39.56 22.05 29.52 32.71 23.58 3/8-16 8.37 4.50 34.83 46.83 3.56 14.90 10.00 20.53
3/4 6″ 26.13 320

Do not use propeller units with duct work. Listed is the hole diameter and threads per inch to accept threaded rod. Dimension equals overall plus 12″.

24

6-560.14

DIMENSIONAL DATA – MODEL BTP
Blower Units – Model BTP
Figure 25.1 – Dimensional Drawings

ADJUSTABLE

R

LOUVERS

6 MOUNTING HOLES

BLOWER ENCLOSURE (OPTIONAL)

G

S

V

4 7/8″

FILTER RACK

7/8″

(OPTIONAL)

4.88

E OPENING

O x P

C

N

M (APPROX.)

Q (MIN DIST TO WALL)

Table 25.1 – Dimensions (inches) – BTP

Models A B C D E F
G (Mounting Hole) H I J K L M N O P
Q (w/Blower Encl & Filter Rack) Q (w/o Blower Encl & Filter Rack)
R S T U V W X Gas Connection Vent Connector Size Blower Approx. Shipping Weight (lbs.)

BTP150 35.53 23.06 22.05 22.52 21.18 15.33 3/8-16 8.37 4.50 8.09 3.87 12.17 52.25 33.18 23.90 24.77 73.04 64.25 3.56 14.90 10.00 13.54 14.52 3.27 17.38
1/2 4″ 12-12 220

BTP175 42.53 25.81 22.05 29.52 23.93 16.70 3/8-16 8.37 4.50 9.47 3.87 13.55 52.19 33.90 24.13 24.52 73.70 64.19 3.56 14.90 10.00 20.53 14.52 7.15 17.38
1/2 4″ 12-12 275

BTP200 42.53 25.81 22.05 29.52 23.93 16.70 3/8-16 8.37 4.50 9.47 3.87 13.55 52.19 33.90 24.13 24.52 73.70 64.19 3.56 14.90 10.00 20.53 14.52 7.15 17.38
1/2 4″ 12-12 280

BTP250 42.53 31.31 22.05 29.52 24.46 19.45 3/8-16 8.37 4.50 6.72 5.20 12.66 58.88 39.88 27.04 27.19 79.68 70.88 3.56 14.90 10.00 20.53 18.04 4.77 20.38
3/4 6″ 15-15 340

BTP300 42.53 31.31 22.05 29.52 24.46 19.45 3/8-16 8.37 4.50 6.72 5.20 12.66 58.88 39.88 27.04 27.19 79.68 70.88 3.56 14.90 10.00 20.53 18.04 4.77 20.38
3/4 6″ 15-15 345

BTP350 42.53 39.56 22.05 29.52 32.17 23.58 3/8-16 8.37 4.50 10.84 5.20 16.78 58.88 39.88 28.57 28.28 79.68 70.88 3.56 14.90 10.00 20.53 18.00 5.24 20.38
3/4 6″ 15-15 395

BTP400 42.53 39.56 22.05 29.52 32.17 23.58 3/8-16 8.37 4.50 10.84 5.20 16.78 58.88 39.88 28.57 28.28 79.68 70.88 3.56 14.90 10.00 20.53 18.00 5.24 20.38
3/4 6″ 15-15 405

Listed is the hole diameter and threads per inch to accept threaded rod. This is an approximate dimension for standard motors, allow 3″ for sheave and optional motors.

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25

SERVICE / MAINTENANCE / TROUBLESHOOTING

WARNING
When servicing or repairing this equipment, use only factoryapproved service replacement parts. A complete replacement parts list may be obtained by contacting the factory. Refer to the rating plate on the appliance for complete appliance model number, serial number, and company address. Any substitution of parts or controls not approved by the factory will be at the owner’s risk.
CAUTION
1. Service or repair of this equipment must be performed by a qualified service agency.
2. Do not attempt to reuse any mechanical or electrical controllers which have been wet. Replace defective controller.
NOTE: To check most of the Possible Remedies in the troubleshooting guide listed in Table 26.1, refer to the applicable sections of the manual.
General Maintenance
The unit and venting system must be checked once a year by a qualified service technician. All installation and service of these units must be performed by a qualified installation and service agency. Before any service, BE SURE TO TURN OFF GAS AT THE MANUAL SHUT-OFF VALVE AHEAD OF THE COMBINATION GAS CONTROL AND TURN OFF ALL ELECTRIC POWER TO THE HEATER.

Table 26.1- Troubleshooting

TROUBLE
Unit does nothing

POSSIBLE CAUSE
1. Power supply is off 2. No 24V power to thermostat

3. Thermostat malfunction

LED light off or flashing

4. LED flashes 5. Blown fuse on control board 6. Defective control
1. Blown fuse on control board 2. Multiple causes

Unit starts but does not ignite
Unit goes through cycle but the burners go out in less then 10 seconds Air circulating fan inoperable

1. Main gas is off 2. Air in gas line 3. Main or manifold gas pressure 4. Check gas valve switch
1. Reversed main power polarity 2. Unit not grounded 3. Flame not sensed
1. Loose connections 2. Defective control board 3. Defective fan motor

1. Service air moving components annually.
a. Check fan for fit on motor shaft and for damage to blades.
2. Keep unit free from dust, dirt, grease, and foreign matter, paying particular attention to:
a. Combustion air inlets.
b. Burners and burner orifices. Turn off gas ahead of the combination gas control and shut off electric power to the heater. Remove the access panel, open the union on the gas line, and disconnect the igniter and sensor wires. Remove the screws that attach the burner tray to the header plate and remove the burner tray and manifold assembly from the heater. Carefully clean the burners with a wire brush or other suitable means. Replace any damaged or deteriorating burners or orifices. Install the burner assembly back onto the header, making certain that all screws, pipes and electrical connections are tight.
CAUTION: Be careful when handling the igniter and flame sensor.
3. Inspect the flame sensor and igniter for deterioration and/or cracks.
4. Verify that the burners are touching each other at the carryover points. This will ensure flame carryover from burner to burner.
a. Clean exterior of heat exchanger tubes.
b. Fan blades.
5. Check wiring for possible loose connections.
6. The gas valves and piping should be checked annually for general cleanliness and tightness. The gas controls should be checked to insure that the unit is operating properly. See control instruction sheets furnished separately with the unit heater.
7. The power exhaust motor bearings have been lubricated for long life and do not require additional lubrication. In dirty atmospheres, it may be desirable to clean the motors and blower housing and blow out the cooling air passages of the motor with compressed air.
8. Perform periodic cleaning of inlet and vent terminal screens.
POSSIBLE REMEDY
1. Turn on main power 2 a. Check control transformer
b. If failed transformer – check thermostat wire gage and length 3 a. Verify wire connections to R&W terminals only
b. Check / replace thermostat 4. Check LED flash code 5. Replace fuse 6. Replace control
1. Replace fuse 2. Control board LED flash codes vary with control type. A decal is
installed in the unit giving a brief description of the applicable codes for your heater. For more detail, see the control board data sheet included with the unit.
1. Open manual gas valve 2. Purge gas line 3. Set gas pressures per manual instructions 4. Set gas valve switch to “ON” position
1. Black wire – HOT, White wire – NEUTRAL, Green wire – GROUND 2. Ground unit and verify quality of ground connection 3. Check flame sensor probe and connection
1. Check all connections 2. Check control board data sheet and function 3. Check fan motor

26

6-560.14

MODEL & SERIAL NUMBER / REPLACEMENT PARTS
Figure 27.1 – Model Number Designations (Remove access cover to locate) PTP 200 S S 01 11 S C A N

Tubular Power Vented Unit Configuration
PTP – Propeller Unit, 150-400MBH BTP – Blower Unit, 150-400MBH
MBH Input (refer to page 22) 150 – 150,000 Btu/hr input 200 – 200,000 Btu/hr input 250 – 250,000 Btu/hr input
etc.
Heat Exchanger Type A – Aluminized
S – Stainless Steel
Ignition Type Direct Spark
Power Code (refer to page 17) 01 – 115V/60Hz/1ph

Factory Installed Option Digit N – None C – BMS – (Building Management Systems)
Future A – All
Dev Digit
Fan Guard Digit N – None (all blower models) S – Standard F – Fingerproof
Control Code Type (refer to page 21) 11 – Natural gas, single stage 12 – Natural gas, two-stage 21 – Propane, single stage 22 – Propane, two-stage

Figure 27.2 – Serial Number Designations (Remove access cover to locate)

CONTROL SUPPLIER 01 – RobertShaw 09 – White Rogers 05 – Honeywell 17 – United Tech 08 – Fenwal

GAS VALVE SUPPLIER 01 – RobertShaw 05 – Honeywell 09 – White Rogers

YEAR OF MANUFACTURE

SPO NUMBER

S SERIALNUMBER 3 0 0 1 0 0 1 7 0 9 1 0 9 8 1 2 3 4 1 0 0 0 0

SPO MODEL
MOTOR SUPPLIER 05 – Universal 18 – Franklin 15 – Marathon 38 – A.O. Smith

UNIT SERIES 00 – Original 01 – Modified

FAN VENDOR CODE

20 – Morrison 01 – Revcor

10 – Lau

08 – Brookside

19 – Air Drive

WEEK OF MANUFACTURE Same as Requirements Planning Shop Calendar

SEQUENTIAL NUMBER Number varies from 0000 to 9999.
Each unit within same week of manufacture is to have unique number.

Replacement Parts
When requesting parts please contact your local representative. Please have full model and serial number available. If you require assistance in locating your representative, please call the number located on the back page.

6-560.14

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28

6-560.14

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6-560.14

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Page Left Intentionally Blank

30

6-560.14

WARRANTY
This Warranty (the “Warranty”) shall apply to Products (as defined below) sold by Modine Manufacturing Company, a Wisconsin corporation (“Seller”) to you (“Buyer”).
Seller hereby warrants that during the Applicable Warranty Period (as defined below) its Products shall be free from defects in material and factory workmanship under normal use and service, subject to the EXCLUSIONS described below and according to the terms outlined in this Warranty.
If Seller receives written notice of a breach of this Warranty prior to the end of the Applicable Warranty Period (which such notice shall include the model and serial numbers of the Product, as well as the date and a reasonably detailed description of the Product’s alleged failure), Buyer shall with Seller’s prior written approval, return the applicable Product or component thereof to Seller with shipping charges prepaid; if upon examination by Seller such Product or component thereof is disclosed to have been defective, then Seller will, without charge to Buyer, at Seller’s option, either repair the Product, replace defective parts in the Product, or offer an entire replacement unit of the Product; provided that the warranty period for a Product that has been repaired or provided with replacement parts shall not extend beyond the original Applicable Warranty Period, nor shall any replacement parts provided for a Product be under any warranty beyond the original Applicable Warranty Period for the Product; similarly, if Seller provides an entire replacement unit of the Product, the warranty period for the replacement unit is limited to the remainder of the original Applicable Warranty Period. Seller shall have no responsibility for installation, service, field labor, shipping, handling, or other costs or charges, except as expressly provided in this Warranty. Buyer shall have no remedy hereunder for any defective part returned without proper written authorization from Seller, as described above.
For purposes of this Warranty and subject to the exclusions described below, the term “Products” shall mean parts or equipment manufactured by Seller, sold to Buyer pursuant to a purchase contract between Buyer and Seller (most often initiated by a purchase order issued by Buyer and accepted by Seller), and expressly described in such contract. The term “Products” shall not include third-party parts or equipment furnished by Seller, except that, to the extent assignable, Seller will assign to Buyer the benefits (together with all limitations and exclusions) of the thirdparty manufacturer’s warranty for such parts or equipment. This Warranty extends only to the original purchase contract between Buyer and Seller and is nontransferable, except that this Warranty may be assigned to an Authorized End User (as defined below). All replaced parts or equipment shall become Seller’s property. For purposes of this Warranty, the term “Applicable Warranty Period” shall mean the warranty period set forth in the table below for each type or class of Product described on the table; provided that, when the Product is to be used as a component part of equipment manufactured by Buyer, the Applicable Warranty Period shall be limited to one (1) year after the date of shipment from Seller, notwithstanding anything in the table below to the contrary. For purposes of this Warranty, the term “Authorized End User” shall mean any third-party that purchases the Product directly or indirectly from Buyer for the Authorized End User’s own use upon the first installation of the Product and not for resale.

BUYER HEREBY ACKNOWLEDGES THAT ITS REMEDIES FOR BREACH OF THIS WARRANTY, EXCLUSIVE OF ALL OTHER REMEDIES PROVIDED BY LAW, ARE LIMITED AS DESCRIBED ABOVE.
EXCLUSIONS AND LIMITATIONS: This Warranty is subject to the following exclusions and limitations:
The term “Products” shall not include and this Warranty shall not apply to any of the following items: refrigerant gas, belts, filters, fuses and other items consumed or worn out by normal wear and tear.
In addition, this Warranty shall not apply to:
(1) Products or components thereof that are damaged or adversely affected by conditions beyond Seller’s control, including but not limited to polluted or contaminated or foreign matter contained in the air or water utilized for heat exchanger (condenser) cooling or if the failure of the part is caused by improper air or water supply, or improper or incorrect sizing of power supply;
(2) Any Products or components thereof which have been repaired or altered outside the factory of Seller in any way, or otherwise subject to unauthorized repairs or alterations, so as, in the judgment of Seller, to affect the Product’s durability or performance;
(3) Materials or labor of any kind not furnished by Seller, or any charges for any such labor or materials, whether such labor, materials or charges thereon are due to replacement of parts, adjustments, repairs, or any other work done by any party other than Seller;
(4) Labor or other costs incurred for diagnosing, repairing, removing, installing, shipping, servicing, or handling of either defective or replacement parts;
(5) Any Products removed from their original location for reinstallation in another location;
(6) Any Products or components thereof which have been operated, maintained, or serviced contrary to Seller’s written installation, operation, and/or servicing instructions or owner’s manual;
(7) Damages resulting from operation with an inadequate or interrupted supply of air or water;
(8) Any Products or components thereof which have been subjected to misuse, negligence, faulty installation, improper servicing, accident, excessive thermal shock, excessive humidity, physical damage, impact, abrasion, improper operation, or other operating conditions in excess of or contrary to those for which such equipment was designed;
(9) With respect to gas-fired or oil-fired units, any Products or components thereof if the input to the Product exceeds the rated input (as indicated on the Product’s serial plate) by more than five percent (5%);
(10) Any Products or components thereof which, in the judgment of Seller, have been installed in a corrosive atmosphere, marine, or coastal application, subjected to corrosive fluids or gases, or damaged or adversely affected by the effects of the physical or chemical properties of water or steam or other liquids or gases used in the Products or any component thereof;
(11) Damage or failure to start resulting from improper voltage conditions, blown fuses, open circuit breakers, or other

6-560.14

31

inadequacy or interruption of electrical service or fuel supply; or
(12) Any Products or components thereof from which the serial number has been altered, defaced or removed.
BUYER AGREES THAT THE WARRANTIES AND REMEDIES DESCRIBED HEREIN ARE THE ONLY WARRANTIES AND REMEDIES PROVIDED BY SELLER WITH RESPECT TO THE PRODUCTS AND TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW SHALL BE IN LIEU OF AND EXCLUSIVE OF ALL OTHER WARRANTIES AND REMEDIES WHATSOEVER, EITHER EXPRESS OR IMPLIED, WHETHER ARISING FROM LAW, COURSE OF DEALING, USAGE OF TRADE, OR OTHERWISE, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT, EACH OF WHICH SELLER HEREBY EXPRESSLY DISCLAIMS. SELLER NEITHER ASSUMES (NOR HAS AUTHORIZED ANY PERSON TO ASSUME) ANY OTHER WARRANTY OR LIABILITY IN CONNECTION WITH ANY PRODUCTS. REPRESENATATIONS AND CONDITIONS, EXPRESS OR IMPLIED BY STATUTE, TRADE USAGE, OR OTHERWISE, ARE EXCLUDED AND WILL NOT APPLY TO THE PRODUCTS UNDER THIS WARRANTY, EXCEPT FOR WARRANTIES WHICH BY LAW CANNOT BE EXCLUDED

OR LIMITED. Without limiting the foregoing, Seller makes no and specifically disclaims all representations and/or warranties that the Products will detect the presence of, or eliminate, prevent, treat, or mitigate the spread, transmission, or outbreak of any pathogen, disease, virus, or other contagion, including but not limited to COVID 19.
BUYER AGREES THAT IN NO EVENT WILL SELLER BE LIABLE FOR COSTS OF PROCESSING, LOST REVENUES OR PROFITS, INJURY TO GOODWILL, OR ANY OTHER SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES OF ANY KIND RESULTING FROM THE PURCHASE OF THE PRODUCTS, OR FROM BUYER’S USE OF ANY PRODUCT, WHETHER ARISING FROM BREACH OF WARRANTY, NONCONFORMITY TO ORDERED SPECIFICATIONS, DELAY IN DELIVERY, OR ANY OTHER LOSS SUSTAINED BY THE BUYER.
OPTIONAL SUPPLEMENTAL WARRANTY
Buyer may purchase from Seller a supplemental warranty with respect to Products which shall extend the Applicable Warranty Period as set forth in the express terms and conditions described in the supplemental warranty agreement. Such supplemental warranty terms may include an additional four (4) years on certain compressors, an additional five (5) years “all parts” warranty, an additional four (4) or nine (9) years on certain heat exchangers, and/ or such additional supplemental warranty terms as Seller chooses to make available to its customers from time to time.

COMPONENT Heat Exchangers and/or Coils

APPLICABLE MODELS

APPLICABLE WARRANTY PERIOD (WHICHEVER OCCURS FIRST)

Time from Date of First Beneficial Use by Buyer or
Authorized End User

Time from Date of Shipment from Seller

Gas Fired Unit Heaters with Tubular Style Heat Exchangers
(e.g. HD, HDS, PTX, BTX, etc)

Aluminized or Stainless Steel

10 YEARS

126 MONTHS

Gas Fired Unit Heaters with Clam-Shell Style Heat
Exchangers
(e.g. PDP, BDP, etc.)

Aluminized Steel (not in highhumidity
applications)
Aluminized Steel (in high-humidity
applications)

10 YEARS (must be Stainless Steel in high-humidity applications)
1 YEAR

126 MONTHS 18 MONTHS

Stainless Steel

10 YEARS

126 MONTHS

Low Intensity Infrared Units

5 YEARS

66 MONTHS

Indoor and Outdoor Duct Furnaces and System Units, Steam/Hot Water Units, Oil- Fired Units, Electric Units, Cassettes, Vertical Unit Ventilators, Geothermal Units

1 YEAR

18 MONTHS

Burners and Elements

Low Intensity Infrared Units High Intensity Infrared and Electric Infrared Units

2 YEARS 1 YEAR

30 MONTHS 18 MONTHS

Compressors

Condensing Units for Cassettes Vertical Unit Ventilators, Geothermal Units

5 YEARS 1 YEAR

66 MONTHS 18 MONTHS

Sheet Metal Parts

All Products

1 YEAR

18 MONTHS

Components, excluding Heat Exchangers, Coils, Condensers,
Burners, Sheet Metal

All Products

2 YEARS

30 MONTHS

As Modine Manufacturing Company has a continuous product improvement program, it reserves the right to change design and specifications without notice.

© Modine Manufacturing Company 2024
32

6-560.14

Modine Manufacturing Company 1500 DeKoven Avenue Racine, WI 53403 Phone: 1.800.828.4328 (HEAT) www.modinehvac.com

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