Refer to the Page 23 (inside back cover) for Model Nomenclature. Table of Contents

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Earl Barry Tate
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2 TABLE OF CONTENTS A complete line of commercial, industrial, and residential heating equipment is offered. This catalog describes in detail the gas-fired, gravity and power vented, commercial/ industrial unit heaters. Depending on the requirements of the application, unit heaters can be ordered either with a propeller or a blower. With these configurations, the units can satisfy a building s heating requirements with a wide range of mounting heights and air distribution options. This catalog describes the design benefits, construction features, performance data, unit selection procedure, and the optional and accessory devices available. Refer to the Page 23 (inside back cover) for Model Nomenclature Table of Contents Page Features and Benefits Gravity Vented Unit Heater Design Features Power Vented Unit Heater Design Features Gravity Vented Unit Heater Performance Data Power Vented Unit Heater Performance Data Blower Unit Performance Data Options Accessories Unit Selection Accessory Performance/ Pressure Drop Data Unit Dimensions - Gravity Vented Propeller Unit Heater Unit Dimensions - Gravity Vented Blower Unit Heater Unit Dimensions - Power Vented Propeller Unit Heater Unit Dimensions - Power Vented Blower Unit Heater Specifications Model Nomenclature WARNING Do not locate ANY gas-fired unit in areas where chlorinated, halogenated or acid vapors are present in the atmosphere.!! WARNING Do not install in potentially explosive or flammable atmosphere laden with dust, sawdust, or similar airborne materials. As Modine Manufacturing Company has a continuous product improvement program, it reserves the right to change design and specifications without notice. 2

FEATURES AND BENEFITS Product Features and Benefits Full Product Line Offering Feature All models are 80% thermally efficient. Available with a propeller or blower air mover.

Applications can include longer ductwork lengths or accessories with higher pressure drops creating higher mounting heights. Flexible units to accommodate a variety of heating requirements.

3 FEATURES AND BENEFITS Product Features and Benefits Full Product Line Offering Feature All models are 80% thermally efficient. Available with a propeller or blower air mover. Blower performance up to 0.5 W.C. Input ranges from 30,000 to 400,000 Btu/Hr. Benefit Saves fuel compared with less efficient equipment. Can accommodate different sound and static requirements. Applications can include longer ductwork lengths or accessories with higher pressure drops creating higher mounting heights. Flexible units to accommodate a variety of heating requirements. Easy Installation Feature Low voltage terminal connections. Adjustable mounting brackets. Two point suspension on most sizes. Benefit Allows for quick and accurate field wiring connections. Allows for level hanging with a variety of accessories attached to the unit. Reduces installation costs through material and labor. Easy to Service Feature Hinged tool-less bottom pan entry. Benefit Simplifies the service and inspection process. 3

4 DESIGN FEATURES Gravity Vented Unit Heater The gravity vented unit heater was designed for use with a building s heating systems. Available in 12 propeller and 11 blower model sizes, the unit covers a wide variety of applications. They have input ranges from 30,000 to 400,000 Btu/Hr and can operate on either or gas. Figure 4.1 Gravity vented propeller unit heater (PD) Optional Features - Factory Installed 409 stainless steel heat exchanger 409 stainless steel burner Single stage standing pilot control system for operation on gas Intermittent pilot with continuous retry control system with single-stage, two-stage, and mechanical modulation controls for either or gas Gas control step down transformers for 208/230V/1Ph for propeller models Gas control step down transformers for 208/230V/1Ph and 208/230/460/575V/3Ph for blower models Fan delay timer Fingerproof propeller fan guard Figure 4.2 Gravity vented blower unit heater (BD) Standard Features: CSA certification for use in the US and Canada 80% thermally efficient Blocked vent safety switch 20 gauge aluminized steel cabinet 115V control step down transformer with 24V gas controls Aluminized steel heat exchanger Aluminized steel burner with stainless steel separator strip Certified to 0.5 W.C. external static pressure Single stage standing pilot control system for operation on gas. High limit safety control Control terminal board Adjustable motor sheaves on blower models Totally enclosed fan/blower motors Accessories - Field Installed Power exhauster with vent adapter Single-stage room thermostats Two stage room and duct thermostats Summer/winter switch Pipe hanger adapter kits 5-10 PSI gas pressure regulator Room thermostat guard Control transformers SPST relays Energy saver kit Blower enclosure on blower models Filter rack and duct connector on blower models Outlet duct connector on blower models Belt guard on blower models Discharge nozzle on blower models Discharge transition for polytube on blower models Deflector hood Natural gas to gas conversion kit Unit step down transformers for propeller units operating on /230/460/575/3ph. supply power. Special Applications A 409 stainless steel heat exchanger and burner is recommended when the combined entering/return air to the unit is below 40 F or if the unit is located in a humid environment. 4

DESIGN FEATURES Power Vented Unit Heater The power vented unit heater was designed for use with a building s heating systems where negative pressure or energy savings may be an issue.

5 DESIGN FEATURES Power Vented Unit Heater The power vented unit heater was designed for use with a building s heating systems where negative pressure or energy savings may be an issue. Available in 12 propeller and 11 blower power vented model sizes, the unit covers a wide variety of applications. They have input ranges from 30,000 to 400,000 Btu/Hr and can operate on either or gas. Figure 5.1 Power vented propeller unit heater (PDP) Figure 5.2 Power vented blower unit heater (BDP) Standard Features: CSA certification for use in the US and Canada 80% thermally efficient Power Exhauster Motor Differential pressure switch for proof of venting 20 gauge aluminized steel cabinet 115V control step down transformer with 24V gas controls Aluminized steel heat exchanger Aluminized steel burner with stainless steel separator strip Certified to 0.5 W.C. external static pressure Single stage intermitent pilot with continuos retry control system for operation on gas. High limit safety control Control terminal board Adjustable motor sheaves on blower models Totally enclosed fan/blower motors Optional Features - Factory Installed 409 stainless steel heat exchanger 409 stainless steel burner Single stage intermittent pilot control system for operation on gas Intermittent pilot with continuous retry control system with two-stage and mechanical modulation controls for either or gas Single stage standing pilot control system for either or gas Gas control step down transformers for 208/230V/1Ph for propeller models Gas control step down transformers for 208/230V/1Ph and 208/230/460/575V/3Ph for blower models Fan delay timer Fingerproof propeller fan guard Accessories - Field Installed Single-stage room thermostats Two stage room and duct thermostats Summer/winter switch Pipe hanger adapter kits 5-10 PSI gas pressure regulator Room thermostat guard Control transformers SPST relays Energy saver kit Blower enclosure on blower models Filter rack and duct connector on blower models Outlet duct connector on blower models Belt guard on blower models Discharge nozzle on blower models Discharge transition for polytube on blower models Deflector hood Natural gas to gas conversion kit Unit step down transformers for propeller units operating on /230/460/575/3ph. supply power. Special Applications A 409 stainless steel heat exchanger and burner is recommended when the combined entering/return air to the unit is below 40 F or if the unit is located in a humid environment. 5

6 GENERAL PERFORMANCE DATA Table Performance Gravity Vented Propeller Models (PD) ➀ ➁ Standard Model Number Table Motor Data and Total Unit Power Requirements Gravity Vented Propeller Models (PD)➀ Unit Voltage 115/60/1 115/60/1 With Use of Transformer 208/60/1 230/60/1 Supply Voltage 115/60/1 208V 230V 460V 575V 208/60/1 230/60/1 6 PD 30 PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400 Btu/Hr. Input 30,000 50,000 75, , , , , , , , , ,000 Btu/Hr. Output 24,000 40,000 60,000 80, , , , , , , , ,000 Entering Airflow (CFM) Outlet Velocity Air Temp. Rise ( F) Max. Mounting Hgt. (Ft) ➂ Heat Throw (Ft) ➂ (Max. Mtg. Hgt.) Motor Type SP SP PSC PSC PSC PSC PSC PSC PSC PSC PSC PSC 115/60/1 (PC01) 1/40 1/40 1/12 1/12 1/8 1/8 1/6 1/6 1/3 1/2 HP 230/60/1 (PC02) 1/40 1/40 1/8 1/8 1/8 1/8 1/6 1/6 1/3 1/ /60/1 (PC03) 1/40 1/40 1/8 1/8 1/8 1/8 1/6 1/6 1/3 1/2 HP Max. Max. Max. Max. Mtr. Mtr. Total Max KVA Total Total KVA Total Total KVA Total Total KVA Total Total Mtr. Mtr. Total Max Mtr. Mtr. Total Max Amps Rpm Amps Watts Req. Amps Req. Amps Req. Amps Req. Amps Amps Rpm Amps Watts Amps. RPM Amps Watts 1/ / / / / / Table Performance Gravity Vented Blower Models (BD) ➀ ➁ Standard Model Number BD 50 BD 75 BD 100 BD 125 BD 150 BD 175 BD 200 BD 250 BD 300 BD 350 BD 400 Btu/Hr. Input 50,000 75, , , , , , , , , ,000 Btu/Hr. Output 40,000 60,000 80, , , , , , , , ,000 Entering Airflow (CFM ) ➂ Outlet Velocity ➂ CFM Range Air Temp. Rise ( F) Max. Mounting Hgt. (Ft) ➂ Heat Throw Ft. ➂ (Max. Mtg. Hgt.) Table Motor Data and Total Unit Power Requirements Gravity Vented Blower Models (BD) ➀ Voltage 115/60/1 230/60/1 208/60/3 230/60/3 460/60/3 575/60/3 Motor Motor Total Total Motor Total Total Motor Total Total Motor Total Total Motor Total Total Motor Total Total HP Rpm Amps Amps Watts Amps Amps Watts Amps Amps Watts Amps Amps Watts Amps Amps Watts Amps Amps Watts 1/ / / / ➀ All motors used are produced, rated and tested by reputable manufacturers in accordance with NEMA standards and carry the standard warranty of both the motor manufacturer and Modine. All motors are totally enclosed and all single phase motors have built-in thermal overload protection. ➁ Ratings shown are for elevations up to 2,000 ft. For elevations above 2,000 feet, ratings should be reduced at the rate of 4% for each 1,000 feet above sea level. (In Canada see rating plate.) Reduction of ratings requires use of a high altitude kit. ➂ 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.

7 GENERAL PERFORMANCE DATA Table Performance Power Vented Propeller Models (PDP) ➀ ➁ Standard Model Number PDP 30 PDP 50 PDP 75 PDP 100 PDP 125 PDP 150 PDP 175 PDP 200 PDP 250 PDP 300 PDP 350 PDP 400 Btu/Hr. Input 30,000 50,000 75, , , , , , , , , ,000 Btu/Hr. Output 24,000 40,000 60,000 80, , , , , , , , ,000 Entering Airflow (CFM) Outlet Velocity Air Temp. Rise ( F) Max. Mounting Hgt. (Ft) ➂ Heat Throw (Ft) ➂ (Max. Mtg. Hgt.) Motor Type SP SP PSC PSC PSC PSC PSC PSC PSC PSC PSC PSC 115/60/1 (PC01) 1/40 1/40 1/12 1/12 1/8 1/8 1/6 1/6 1/3 1/2 HP 230/60/1 (PC02) 1/40 1/40 1/8 1/8 1/8 1/8 1/6 1/6 1/3 1/ /60/1 (PC03) 1/40 1/40 1/8 1/8 1/8 1/8 1/6 1/6 1/3 1/2 Table Motor Data and Total Unit Power Requirements Power Vented Propeller Models (PDP) ➀ Unit Voltage 115/60/1 115/60/1 With Use of Transformer 208/60/1 230/60/1 Supply Voltage 115/60/1 208V 230V 460V 575V 208/60/1 230/60/1 HP Mtr. Mtr. Total Max KVA Total Max. KVA Total Max. KVA Total Max. KVA Total Max. Total Total Total Total Mtr. Mtr. Total Max Mtr. Mtr. Total Max Amps Rpm Amps Watts Req. Amps Req. Amps Req. Amps Req. Amps Amps Rpm Amps Watts Amps. RPM Amps Watts 1/ / / / / / Table Performance Power Vented Blower Models (BDP) ➀ ➁ Standard Model Number BDP 50 BDP 75 BDP 100 BDP 125 BDP 150 BDP 175 BDP 200 BDP 250 BDP 300 BDP 350 BDP 400 Btu/Hr. Input 50,000 75, , , , , , , , , ,000 Btu/Hr. Output 40,000 60,000 80, , , , , , , , ,000 Entering Airflow (CFM ) ➂ Outlet Velocity ➂ CFM Range Air Temp. Rise ( F) Max. Mounting Hgt. (Ft) ➂ Heat Throw Ft. ➂ (Max. Mtg. Hgt.) Table Motor Data and Total Unit Power Requirements Power Vented Blower Models (BDP) ➀ Voltage 115/60/1 230/60/1 208/60/3 230/60/3 460/60/3 575/60/3 Motor Motor Total Total Motor Total Total Motor Total Total Motor Total Total Motor Total Total Motor Total Total HP Rpm Amps Amps Watts Amps Amps Watts Amps Amps Watts Amps Amps Watts Amps Amps Watts Amps Amps Watts 1/ / / / ➀ All motors used are produced, rated and tested by reputable manufacturers in accordance with NEMA standards and carry the standard warranty of both the motor manufacturer and Modine. All motors are totally enclosed and all single phase motors have built-in thermal overload protection. ➁ Ratings shown are for elevations up to 2,000 ft. For elevations above 2,000 feet, ratings should be reduced at the rate of 4% for each 1,000 feet above sea level. (In Canada see rating plate.) Reduction of ratings requires use of a high altitude kit. ➂ 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. 7

8 GENERAL PERFORMANCE DATA Blower Models (BD and BDP) Models With or Without Blower Enclosure ➀ ➁ For 575V selections and footnotes, please see page 9. Model Size Static Air Pressure 0.1 Static Air Pressure 0.2 Static Air Pressure 0.3 Static Air Pressure Temp Sheave Sheave Sheave Sheave Rise Airflow RPM HP Drive Turns RPM HP Drive Turns RPM HP Drive Turns RPM HP Drive Turns ( F) (cfm) No. Open No. Open No. Open No. Open 0.4 Static Pressure Sheave RPM HP Drive Turns No. Open / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /4 1/ / /3 1/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /3-95 1/2-96 1/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

9 GENERAL PERFORMANCE DATA Blower Models (BD and BDP) Models With or Without Blower Enclosure ➀ ➁ Data for use with filters only Model Size Static Air Pressure 0.6 Static Air Pressure 0.7 Static Air Pressure Temp Sheave Sheave Sheave Rise Airflow RPM HP Drive Turns RPM HP Drive Turns RPM HP Drive Turns ( F) (cfm) No. Open No. Open No. Open / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /2 1/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / /21/ / / / / / /21/ / / / / / / / / / Filters For blower units with enclosure and filter, add the following static pressures to the static pressure determined by the system designer for total external static pressure " W.C " W.C " W.C " W.C " W.C " W.C " W.C " W.C " W.C " W.C " W.C. Important: Note for 575V Only ➂ HP & Drive HP & Drive to Order from this Catalog from Price List ➃ 1/4-182 = 1/ /4-183 = 1/ /3-1 = 1/3-61 1/4-184 = 1/ /4-185 = 1/ /3-185 = 1/ /4-200 = 1/ /4-90 = 1/4-92 1/3-90 = 1/3-92 1/4-188 = 1/ /3-188 = 1/ /3-202 = 1/ /2-201 = 1-1/ /4-191 = 1/ /3-191 = 1/ /3-95 = 1/3-96 1/3-95 = 1/ /2-193 = 1-1/ /4-212 = 1/ /3-212 = 1/ /3-102 = 1/ /2-105 = 1-1/ /3-203 = 1/ /2-105 = 1-1/ /2-106 = 1-1/ /2-105 = 1-1/ /2-100 = 1-1/ /2-105 = 1-1/2-180 ➀ 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) ➁ Sheave turns open are approximate. For proper operation, check blower rpm ➂ Models not shown use same HP and drive numbers as cataloged ➃ Performance is the same; motor sheave accommodates larger shaft. When ordering 575V, specify the listed 575V drive. 9

10 GENERAL PERFORMANCE DATA TABLE 10.1 Power Code Description Blower Models (BD and BDP) Power Code Electric Power /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/ /60/ /60/ /60/ /460/60/ /60/3 BD50 BD75 BD100 BD125 BD150 BD175 BD200 BD250 BD300 BD350 BD400 HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive HP Drive 1/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /4 90 1/ / /3 95 1/ / / / / /4 90 1/ / /3 95 1/ / / / / /4 90 1/ / /3 95 1/ / / / / /4 90 1/ / /3 95 1/ / / / / /4 92 1/ / /3 96 1/ / / /3 1 1/ /3 90 1/ /3 95 1/2 96 1/ / / /3 1 1/ /3 90 1/ /3 95 1/2 96 1/ / / /3 1 1/ /3 90 1/ /3 95 1/2 96 1/ / / /3 1 1/ /3 90 1/ /3 95 1/2 96 1/ / / /3 61 1/ /3 92 1/ /3 96 1/2 96 1/ / / /2 61 1/ /2 92 1/ / / / / /2 61 1/ /2 92 1/ / / / / /2 61 1/ /2 92 1/ / / / / /2 61 1/ /2 92 1/ / / / / /2 61 1/ /2 92 1/ / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /3 2 1/ / /3 2 1/ / /3 2 1/ / /3 2 1/ / / / / /2 79 1/ / /2 79 1/ / /2 79 1/ / /2 79 1/ / /2 80 1/ / /2 25 1/2 25 1/2 25 1/2 25 1/ / / / / /

11 4 PERFORMANCE DATA Figure 11.1 Factory Mounted Option Location Gravity Vented Units (PD/BD) ➈ ➇ 12 ➆ ➅ ➁ ➄ ➂ ➀ ➃ Figure 11.2 Factory Mounted Option Location Power Vented Units (PDP/BDP) ➆ ➅ ➁ ➉ ➄ ➂ ➀ ➃ All units include the standard (STD) features. The unit must be reviewed to determine the optional (OPT) features that may have been supplied with the unit. (1) Gas Valve (See Table 13.1) a) Single Stage Gas Valve - (STD) The main gas valve is factory installed on the unit heater gas train. The main gas valve provides the pilot, regulator, main gas, and manual shutoff functions. For additional information, see the supplier literature included with the unit. b) Two Stage Gas Valve - (OPT) The two-stage gas valve is factory installed on the unit heater gas train. The two stage gas valve provides the pilot, regulator, main gas (100% and 50% fire), and manual shutoff functions. For additional information, see the supplier literature included with the unit. c) Mechanical Modulating - (OPT) Mechanical modulation utilizes a main gas valve as well as a mechanical modulating gas valve (not shown). The mechanical modulating valve includes a hydrostatic sensing bulb that is temporarily affixed to the side of gas train to be field installed in ductwork. The discharge air temperature is field set by the control dial on the modulating gas valve. Refer to Installation and Service manual for set point temperatures. Figure 11.3 Mechanical Modulation Sensing Bulb Hydrostatic Sensing Bulb Hydrostatic Sensing Bulb IN (2) Ignition controller - (OPT) The ignition controller is factory installed on the back of the unit heater with the spark igniter and sensor located on the burner. For both and gas units, the ignition controller is 100% shut-off with continuous retry. On a call for heat, the system will attempt to light the pilot for 70 seconds. If the pilot is not sensed for any reason, the ignition control will wait for approximately six minutes with the combination gas control closed and no spark. After six minutes, the cycle will begin 11 NO OFF LO HI 1 8 Gas Control Control Knob Knob Control Dial Control Dial

12 OPTIONS again. After three cycles, some ignition controllers lockout for approximately one hour before the cycle begins again. This will continue indefinitely until the pilot flame is sensed or power is interrupted to the system. (3) Time Delay Relay - (STD on all but Mech. Mod.) The time delay relay is factory installed in electrical junction box. The time delay relay allows the gas controls to operate for approximately 30 to 90 seconds before the blower starts. This allows the heat exchanger a warm up period so that the initial delivered air is not cool. The time delay relay also keeps the motor running for approximately seconds after the call for heat has been satisfied to remove the residual heat from the heat exchanger. For single-phase units below 2 Hp, the time delay relay controls the motor directly. For single-phase units 2 Hp and greater and all three phase units, the time delay relay controls the motor starter. Note: Mechanical modulation units are used on make-up air only and do not require time delay relays. Therefore, mechanical modulation units are not supplied with time delay relays. (4) Low Voltage Terminal Board - (STD) The low voltage terminal board is located in electrical junction box. The terminal board is labeled to match the electrical wiring diagram provided with the unit. All low voltage field wiring connections should be made to the exposed side of the terminal board (exterior of electrical junction box) to prevent miswiring by modifying the factory wiring which is inside the electrical junction box. (8) Blocked Vent Safety Switch - (STD) A manual reset blocked vent safety switch (BVSS) is supplied on all gravity vented unit heaters and is designed to prevent operation of the main burner in the event there is spillage of flue products into the space. This spillage may occur due to a restricted vent, inadequate vent draw, uninsulated vent pipe in cold ambient or long vent runs, excessive vent diameter, restrictive vent terminal, negative pressure within space, etc. After the cause of the spillage has been corrected, depressing the button of the BVSS found on top of the unit may reset the BVSS. See trouble shooting section for more information. (9) Vent Pipe Connection - (STD) All gravity vented unit heaters are supplied with an oval vent pipe connection. This connection is sized to accept a piece of round pipe that has been "flattened" to fit on the connection. Special vent transitions are not required. If it is desired to use a rigid pipe (i.e. 90 elbow) install a short transition piece to allow for the change from oval to round. (10) Pressure Switch (STD) A automatic reset vent pressure switch is supplied on all Power vented unit heaters and is designed to prevent operation of the main burner in the event there is restricted venting of flue products. This restriction may occur due to an improper vent diameter, long vent runs, un-approved vent terminal, high winds, high negative pressure within space, etc. After the cause of the restriction has been corrected, the pressure switch will reset automatically. See the trouble shooting section of the installation and service manual for more information. (5) Control Step Down Transformer - (STD) The control step down transformer is located in the electrical junction box. The transformer is used to step down the supply power (115V, 208V, 230V, 460V, 575V) to 24V. This transformer is used to control the gas controls, fan delay relay, field supplied motor starter, etc. All unit heaters are supplied with a 40VA control step down transformer. To determine the control transformer supplied as well as any accessory/ field supplied transformers required reference the supply voltage listed on the serial plate and reference tables 13.1 and (6) Blower Motor - (OPT) The blower motor is factory installed on the blower housing. The blower motor can be provided in a variety of supply voltages and motor horsepowers. Refer to the model nomenclature to determine the motor provided. The blower motor is supplied with an adjustable sheave that can be used to increase/decrease the blower RPM. For instructions on changing the blower RPM, refer to Blower Adjustments. (11) Power Exhauster (STD) All power vented unit heaters are supplied with a round vent pipe connection. Some models may require the use of a factory supplied vent transition from the power exhauster outlet to the vent pipe. The power exhauster may be rotated 180 to allow for various venting directions. (12) Finger Proof Fan Guard (OPT) Propeller units may be equipped with an optional finger proof fan guard for added protection. The finger proof fan guard is installed at the factory in place of the standard fan guard. Standard fan guard is shown. (7) High Limit Switch - (STD) The automatic reset high limit switch is factory installed on the left side (air blowing you in the face) of the unit heater. If the limit temperature is exceeded, the gas controls are de-energized until the switch is cooled. 12

13 OPTIONS Table 13.1 Gas Controls All Models Control System Description Control Code No. Service Voltage Thermostat Voltage Type of Gas Single-Stage, Standing Pilot, 100% Shut-Off Utilizes a single-stage combination gas control and thermocouple. Pilot needs to be manually lit initially and stays lit. Single-Stage, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry Utilizes a single-stage combination gas control and an ignition control (continuous retry). Pilot is automatically lit on call for heat. Two-Stage, Standing Pilot, 100% Shut-Off Utilizes a two-stage gas control (which fires at 50% or 100% of full rated input) and thermocouple. Pilot needs to be manually lit initially and stays lit. Available on gravity vented units only. Two-Stage, Intermittent Pilot Ignition, 100% Shut-Off with Continuous Retry Utilizes a two-stage combination gas control (which fires at 50% or 100% of full rated input) and an ignition control (continuous retry). Pilot is automatically lit only on call for heat. Not available on PDP30. Mechanical Modulation with Automatic Pilot Ignition, 100% Shut-Off with Continuous Retry Utilizes a modulating combination gas control and an ignition control (continuous retry). Pilot is automatically lit whenever there is power to the unit. Modulation range is between 50% and 100% fire; gas control shuts off below 50% fire. Available on blower models only ➀ 14 ➀ ➀ 92 ➀ ➀ 33 ➀ ➀ 94 ➀ V 200/230V 460V 575V 115V 200/230V 460V 575V 115V 200/230V 460V 575V 115V 200/230V 460V 575V 115V 200/230V 115V 200/230V 115V 200/230V 115V 200/230V 115V 200/230V 115V 200/230V Table 13.2 Electrical Details Propeller Units Power Additional Field Installed Transformers Supply Voltage Unit Power Gravity Vent w/power (Control & Mtr) Control Code Selected Factory Installed Transformer For Gravity Vent Exhaust Accessory or Voltage Phase Voltage Phase Power Vent Unit ,25,30,59,63,81,83,85,87, to 25 none none ,25,30,59,63,81,83,85,87, to V to 115V 208V to 115V ,26,31,60,64,82,84,86,88, to 25 none none ➀ ,25,30,59,63,81,83,85,87, to V to 115V 208V to 115V 230 ➀ ,25,30,59,63,81,83,85,87, to V to 115V 230V to 115V ,26,31,60,64,82,84,86,88, to 25 none none 230 ➀ ,25,30,59,63,81,83,85,87, to V to 115V 230V to 115V ,25,30,59,63,81,83,85,87, to to 115V 460 to 115V ,25,30,59,63,81,83,85,87, to to 115V 575 to 115V Table 13.3 Electrical Details Blower Units Power Unit Power Supply Voltage (Control & Mtr) Control Code Selected Factory Installed Transformer For Gravity Vent Additional Field Installed Transformers Power Gravity Vent w/power Vent Exhaust Accessory Unit Motor Starter Coil Voltage Voltage Phase Voltage Phase ,25,30,59,63,81,83,85,87, to 25 none none none none ,26,31,60,64,82,84,86,88, to 25 none none none none ,26,31,60,64,82,84,86,88, to 25 none none none V ,26,31,60,64,82,84,86,88, to 25 none none none none ,26,31,60,64,82,84,86,88, to 25 none none none 230V ➁ 3 26,60,64,84,88,90 ➁ 230 to to 230V ➂ 460 to 230V ➂ 460 to 230V ➂ 230V ,32,91, to 25 none 460 to 230V none ➁ 3 26,60,64,84,88,90 ➁ 230 to to 230V ➂ 575 to 230V ➂ 575 to 230V ➂ 230V ,33,92, to 25 none 575 to 230V none ➀ Unit power code must match supply voltage, control voltage must match unit power. ➁ Certain V and 230V electrical distribution systems have connections available for supplying 115V service. This may eliminate the need for the additional field installed transformer. Please check with the job site electrician to determine applicability. ➂ For CSA Canada certification, step down transformer may be required to be factory installed. 13

14 ACCESSORIES Table 14.1 Field Installed Thermostats Single-Stage Thermostats Type Description Room HONEYWELL T822D VAC; F temperature range; heat anticipator 0.18 to 0.8 Thermostat amp rating Room ROBERTSHAW CM VAC; F temperature range; heat anticipator 0.18 to 1.0 Thermostat amp rating Sub-Base SB-3A-1 Sub-base for Robertshaw CM-260 thermostat # Sub-base switching: System - auto/off, fan - auto/on Two-Stage Thermostats Room with Sub-Base Thermostat Duct Thermostat Duct Thermostat HONEYWELL T874F1015 with Q674C1009 Sub-base - AC; F temperature range; heat anticipator 0.1 to 1.2 amp rating. Sub-base switching; System - auto/off, Fan - auto/on HONEYWELL DUCT STAT, T678A F temperature range; 20 foot capillary; 8 amp 120V HONEYWELL duct stat, T678A F temperature range; 20 foot capillary; 8 amp 120V Field Installed Accessories Vent Transition Allows the connection of a 10" vent pipe to a PD 300 unit without the use of a field fabricated transition. Pipe hanger adapter kits Allows the unit to be suspended by " pipe from the standard 3/8" holes found in the top of the unit. Summer/winter switch Allows a choice of fan operation of the unit, the summer/winter toggle switch kit is available for field installation. In the summer position, the fan runs continuously for ventilation while still allowing the gas controls to fire on a call for heat from the thermostat. In the winter position the thermostat will cycle the fan and the heating circuit. Energy saver kit Used to reduce stratified air in high mounting height applications lowering total energy costs. This kit consists of a controller with a SPDT (16 120V) switch and a temperature rage of F. Gas pressure regulator Fisher Type S-100-, inch pressure regulator for 5 to 10 psi inlet pressure capacity, 30 MBH to 400 MBH. Natural or gas. Room thermostat guard Clear plastic for room thermostats. Guard is locking type and comes complete with two keys. Transformers Transformers are available to operate propeller units on /230/460 3Ph power. Also they may be used to operate accessory power exhausters for blower units. Refer to table 13.2 ans 13.3 for further selection details. Available in 30, 60, and 90 configurations these deflector hood enable the unit to be mounted higher while still providing heet to the building occupants. Refer to page 17 for further details. Blower Enclosure Totally encases the motor and blower assembly. For use with blower models only. Filter rack and duct connector Allows for filtering of the air prior to entering the heater as well as providing a connection point for up-stream duct work. For use with blower models only. Outlet duct connector Provides a connection point for down-stream (discharge air) duct work. For use with blower models only. Belt Guard Provides protection for building occupants as well as service people from the drive belt and sheaves. For use with blower models only. Discharge Nozzle Four varieties of velocity generating nozzles allow for increase flexibility for given applications. These nozzles increase mounting height while also directing the airflow to the desired locations. Refer to page 16 for further details. For use with blower models only. Discharge Transition for polytube Allows for the connection of polytube (not included) to the discharge of the unit. For use with blower models only. SPST relays This single pole single throw relay consists of a coil with a maximum contact rating of 18 amps at 115V. Relay is enclosed with a connection allowing Natural gas to gas conversion kit Provides all required parts as well as instructions to convert a gas unit to gas. Note: Only the following control codes may be converted with a standard kit: 11, 12, 13, 14, 30, 31, 32 or 33. Deflector hood 14

15 UNIT SELECTION Selection Procedure In order to properly select a unit heater it is necessary to have the following basic information. 1. Heating output capacity To determine the heat loss for the space use Modine Breeze calculator software. The program will require the following inputs: location, indoor design temperature, air changes per hour, and construction of building which includes number and type of windows/ doors as well as the insulation type and thickness. 2. External static pressure (blower units only) The external static pressure (E.S.P.) is determined using the ASHRAE Guide for duct losses, or may be provided by the design engineer. 3. Unit configuration with accessories (Nozzles, transitions, filters, etc. ) (blower units only) The unit configuration is determined by the location where the unit is to be installed. The critical accessories are those that add internal static pressure (I.S.P.) to the unit. Once these items are determined, the total pressure drop can be determined. 4. Heat exchanger material The heat exchanger type is determined by the application. The standard heat exchanger material is aluminized steel. A 409 stainless steel heat exchanger and burner is recommended when the combined entering/return air to the unit is below 40 F or in high humidity applications. 5. Type of fuel Either or gas determined by the design engineer. 6. Gas controls Either single stage, two stage, or mechanical modulation as determined by the design engineer. Single stage and two stage may be IPI or standing pilot depending on unit type. 7. Main power supply voltage to unit 8. Altitude at which unit is to be installed With this information a basic unit can be selected as shown in the following example. Selection Example Conditions (Propeller Unit) In the following example, select a unit heater to meet the following conditions: 1. Heating output capacity = 176,000 Btu/Hr per Modine Breeze calculator software. 2. External Static Pressure = 0.0. No static producing accessories are required. 3. Gravity Vented unit 4. Heat exchanger and burner = 409 Stainless Steel. 5. Gas Type = Natural 6. Gas Controls = Single Stage Standing Pilot. 7. Supply Voltage: 460V/60Hz/3Ph 8. Altitude: 1000 feet Selection Example Solution (Propeller Unit) With the information listed above, the basic model, using the Model Nomenclature shown on page 23, can be selected as shown in the following example: 1. Determine the Model Configuration and Venting: The Model Configuration is determined by the total static pressure (0.0) and the venting style (Gravity) that are obtained from items #2 and #3. Using the Model Nomenclature on page 23, the Model Configuration = PD. 2. Determine the Input Rating (MBH): Using the Heating output capacity, the Furnace Input Rating is determined from Table 6.1. The closest model to 176,000 Btu/Hr output has an Btu/Hr Input rating of 200,000 Btu/Hr so the Furnace Input Rating = Determination of Heat Exchanger/Burner/Drip Pan Material: From item #4 listed above, the Heat Exchanger and Burner required are 409 Stainless Steel. Thus, the Heat Exchanger Material = S. The burner is an option placed on the order. 4. Determine the development sequence. From item #6 listed above, the standing pilot results in the Development Sequence = A. 5. Determine Power Code Required From table 7.1 we see that a unit voltage of 115V/60Hz/1Ph requires a power code (PC) = Determine the control type From item #5 listed above, the gas type is Natural Gas and controls are single stage. Given the supply voltage listed in #7, we can refer to table 13.1 to determine what controls are needed. Since propeller units are not available in 460V/60Hz/3Ph we refer to table 13.2 which directs us to a unit voltage of 115V/60Hz/1Ph for propeller units. This results in a Control code (CC) = 11. A step down transformer will be selected later in the example. At this point we have a full model number of: PD 200SA Determination of transformer To operate a 115V/60Hz/1Ph unit on 460V/60Hz/3Ph supply power a unit step down transformer must be selected. By referring to table 13.2 we see that a 460V to 115V step down transformer is required. 8. Altitude Since duration of gas fired unit heaters is only required for units to be installed at 2000 ft or greater nothing is required. If the unit were to be at an altitude grater than 2000ft a high altitude kit would have to be specified. Selection Example Conditions (Blower Unit) In the following example, select a unit heater to meet the following conditions: 1. Heating output capacity = 176,000 Btu/Hr per Modine Breeze calculator software. 2. External Static Pressure = 0.2. No static producing accessories are required. 3. Power Vented Unit 4. Heat exchanger and burner = Aluminized Steel. 5. Gas Type = Propane 6. Gas Controls = Two stage Intermittent Pilot. 7. Supply Voltage: 230V/60Hz/3Ph 8. Altitude: 1000 feet 9. CFM = 2400 Selection Example Solution (Blower Unit) With the information listed above, the basic model, using the Model Nomenclature shown on page 23, can be selected as shown in the following example: 1. Determine the Model Configuration and Venting: The Model Configuration is determined by the total static pressure (0.2) and the venting style (Power Exhausted) that are obtained from items #2 and #3. Using the Model Nomenclature on page 23 the Model Configuration = BDP. 2. Determine the Input Rating (MBH): Using the Heating output capacity, the Furnace Input Rating is determined from Table 6.3. The closest model to 176,000 Btu/Hr output has an Btu/Hr Input rating of 200,000 Btu/Hr so the Furnace Input Rating = Determination of Heat Exchanger/Burner/Drip Pan Material: From item #4 listed above, the Heat Exchanger and Burner required are aluminized steel. Thus, the Heat Exchanger Material = A. 15

PERFORMANCE DATA - NOZZLES 4. Determine the development sequence. From item #6 listed above, the intermittent pilot results in the Development Sequence = E. 5.

16 PERFORMANCE DATA - NOZZLES 4. Determine the development sequence. From item #6 listed above, the intermittent pilot results in the Development Sequence = E. 5. Determine Power Code Required From page 8 we see that a unit requiring a static of 0.2 and a cfm of 2400 requires a 1/3 horse power motor with a -102 drive that is turned open 4.0 turns. Referring to table 10.1 it can be determined that for a BDP200 with a 1/3 HP motor and a -102 drive operating on 230V/60Hz/3Ph that if will have a power code = Determine the control type From item #5 listed above, the gas type is Propane Gas and controls are Two Stage. Given the supply voltage listed in #7, we Figure 16.1 Nozzle Heat Spread can refer to table 13.1 to determine what controls are needed. This results in a Control code (CC) = 88. At this point we have a full model number of: BDP200AE Altitude Since duration of gas fired unit heaters is only required for units to be installed at 2000 ft or greater nothing is required. If unit were to be at an altitude grater that 2000ft a high altitude kit would have to be specified. 90 VERTICAL NOZZLE 40 DOWNWARD NOZZLE H H S S S T T 5-WAY NOZZLES 40 SPLITTER NOZZLE S T H S S Table 16.1 Mounting Height, Heat Throw, Heat Spread (in feet) Nozzle Type 40 Downward Nozzle 90 Vertical Nozzle 40 Splitter Nozzle 5-Way Nozzle Blower Model Size Max. Mounting Ht. (ft.) H Heat Throw (ft.) T Heat Spread (ft.) S Max. Mounting Ht. (ft.) H Heat Spread (ft.) S Max. Mounting Ht. (ft.) H Heat Throw (ft.) T Heat Spread (ft.) S Max. Mounting Ht. (ft.) H Heat Spread (ft.) S The above table is based on an inlet air temperature of 70 F and an air temperature rise of 55 F. Air deflectors on, 40 and 90 discharge nozzles set perpendicular to the face of the air discharge opening. On 5-way nozzles all air deflectors set perpendicular to floor. Static pressure measured at 0.1" W.C. for 90 nozzle, 0.2" W.C. for 40 downward and 5-way nozzle, and 0.3" W.C. for 40 splitter nozzle. Outlet velocities are approximately 1750 FPM for the 40 nozzles, 1000 FPM for the 90 nozzle and 1300 FPM for 5-way. For motor size, drive and blower rpm refer to pages 18 and 19. Mounting height measured from bottom of unit. 16

PERFORMANCE DATA - HOODS FOR PROPELLER MODELS Table 17.1 - Performance Data - 30, 60, and 90 Downward Deflector Hoods Hood Type 30 60 90 Max. MTG. HGT.

17 PERFORMANCE DATA - HOODS FOR PROPELLER MODELS Table Performance Data - 30, 60, and 90 Downward Deflector Hoods Hood Type Max. MTG. HGT. X Y Z Max. MTG. HGT. X Y Z Max. MTG. HGT. S Model Size S S H NOTE: X = FEED FROM HEATER TO START OF FLOOR COVERAGE. Y = FEET TO END OF FLOOR COVERAGE. Z = FEET TO END OF THROW. ➁ Data Based on unit fired at full rated input, F entering air temperature, and a 40 F temperature rise through unit. Maximum mounting heights higher versus units without outlet devises. 30 and 60 THROW-FLOOR COVERAGE 30 DOWNTURN NOZZLE 60 DOWNTURN NOZZLE MOUNTING HEIGHT HOOD 60 HOOD 90 HOOD X 60 NOZZLE X Y Z 30 NOZZLE Y Z 17

Gas-Fired Power Vented Unit Heaters Propeller & Blower Models

July, 2009 Gas-Fired Power Vented Unit Heaters Propeller & Blower Models MODEL HD MODEL HDB MODEL PDP MODEL BDP TABLE OF CONTENTS Modine s power vented unit heaters are designed for the heating requirements