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Report (34) s ' GAS-FIRED, GRAVITY-VENTED UNIT HEATERS Low Initial Cost,80%Thermal Efficiency Gravity-Vented 12 Propeller Models and 11 Blower Models Small Vent-Sizes Provide Lower Cost Available with Intermittent Pilot Ignition Power Exhaust Optional Due to its low cost and compact design, Modine's PD propeller unit heater is the logical choice for many unit heater applications.The model PD is a gas-fired, gravity-vented propeller unit heater that provides application versatility, ease of installation, low installed f cost, long life and excellent heat-throw. Designed for overhead suspended mounting, this heater only requires venting, gas, and electric service connections prior to operation. Propeller fan units are classified as zero-static-pressure type, and should not be ALL used with velocity-generating discharge nozzles or ductwork connections. The model BD blower is a gas-fired,gravity-vented blower unit heater,and is >- � t usually selected in place of the model PD for one or more of the following reasons •To overcome static pressures. **41,144.14411 •Where several rooms or areas are to be served by a remote heat source. •To provide heat, filtered air and ventilation, all from a single source. •When quiet operation is important. For zone control over heating and ventilation. For spot heating or high mounting-heights where special discharge nozzles MODEL PD ' may be required. Equipment options include: Blower and motor enclosures, combination filter-rack and duct connections, velocity-generating nozzles and deflector hoods. A wide variety of motor horsepowers and control options to meet your performance criteria. Performance Data Propeller Model Number 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 75,000 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000 .:" --- Btu/Hr Output 24,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 200,000 240,000 280,000 320,000 I I I I Vent Dia.(In.) 3 4 5 6 6 7 7 7 8 9 10 10 CFM @ 70°F 440 740 1100 1460 1850 2180 2550 2870 3700 4460 4870 5440 {',. '� `,. Air Temp. 51 50 51 51 50 51 51 52 50 50 53 54 Rise(°F) Maximum Mounting 7 9 12 14 14 16 17 15 19 21 20 19 Height(Ft) Heat Throw 25 33 41 49 51 55 59 51 67 74 70 69 (Ft) Motor HP 1/40 1/40 1/12 1/12 1/8 1/8 1/6 1/6 1/3 1/2 3/4 3/4 10 At 65°ambient temperature and unit fired at full-rated input.Mounting height is measured from floor to bottom of unit, MODEL BD Blower 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 75,000 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000 Btu/Hr Output 40,000 60,000 80,000 100,000 120,000 140,000 160,000 200,000 240,000 280,000 320,000 Vent Dia.(In.) 4 5 6 6 7 7 7 8 9 10 10 Motor HP (Std 115V/60Hz/1Ph) 1/4 1/4 1/4 1/4 1/4 1/3 1/4 1/3 3/4 1 1-1/2 Air Flow 529- 794- 1058- 1323- 1587- 1852- 2116- 2646- 3175- 3704- 4233- CFM Range 926 1389 1852 2315 2778 3241 3704 4630 5556 6481 7407 Air Temp. Rise Range(°F) 40-70 40-70 40-70 40-70 40-70 40-70 40-70 40-70 40-70 40-70 40-70 Note:Maximum mounting heights and heat throws for BD models,without ductwork or nozzles,and at a CFM yielding a 55°temperature rise,are the same as those listed for equivalent size PD units. DESIGN DO NOT LOCATE ANY GAS-FIRED UNIT IN AREAS WITH CHLORINATED, 4DR71 ® CERTIFIED HALOGENATED OR ACIDIC VAPORS IN ATMOSPHERE. Request Catalog 6-189 For Complete Technical Information and Specifications. I DIMENSIONAL DATA Propeller Units - Model PD Figure 14.1 Dimensional Drawings A C -..—H -.,—F—I.-I I K W 1~—X—T"-'1 J VENT PIPE �/ I I I f '- \ //-- 1 - t K E e III 1IJI I,MOOINE BB 51 t EE IH r D(OPENING) + l LL ► L Ii (MIN.DISTANCE TO WALL) 1 Table 14.1 Dimensions (inches)— PD 10 Dimension Model Number Symbol PD 30 PD 50 PD 75 PD 100 PD 125 PD 150 PD 175 PD 200 PD 250 PD 300 PD 350 PD 400 A 12-7/8 17-1/4 17-1/4 19-1/4 19-1/4 21 23-1/2 25-5/8 25-5/8 28-5/8 33-5/8 40 B 24-1/4 24-1/4 28-3/4 28-3/4 35-1/4 35-1/4 35-1/4 40-1/4 40-1/4 40-1/4 40-1/4 40-1/4 C 14-3/4 14-3/4 20 20 22 22 22 25 25 25 25 25 D 10-7/16 14-13/16 14-13/16 16-13/16 16-13/16 18-9/16 21-1/16 23-3/16 23-3/16 26-3/16 31-3/16 37-1/2 E 13 13 16 16 20 20 20 24 24 24 24 24 F 9-1/4 9-1/4 11 11 12 12 12 13-1/2 13-1/2 14 — — G 2 2 2-3/4 2-3/4 3-5/8 3-5/8 3-5/8 4-3/8 4-3/8 4-3/8 41/4 4-1/4 H 9-1/4 13-5/8 13-5/8 15-5/8 15-5/8 17-3/8 19-7/8 22 22 25 30 36-3/8 JO 3 4 5 6 6 7 7 7 8 9 10 10 K (Mounting 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 Holes)(3 L(4) 28-1/4 28-1/4 36 36 36-1/2 37-1/8 37-1/8 40-7/8 41 42-1/4 42-1/4 47-1/4 W — — — — — — — — — — 5 5 X — — — — — — — — — — 16 16 AA 5 5 6-1/4 6-1/4 8 8 8 9 9 9 9 9 BB 6-1/4 6-1/4 6-1/2 6-1/2 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 7-1/4 EE 22-1/4 22-1/4 29 29 30-1/2 30-1/2 30-1/2 32-7/8 32-7/8 32-7/8 32-7/8 32-7/8 LL 19-1/2 20-1/8 30 30 30 31-1/8 31-1/8 34-7/8 34-7/8 36-1/4 35-1/2 40-1/2 Gas Connections© 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2 3/4 3/4 Fan Diameter 9 12 12 14 14 16 18 20 20 22 22 24 Approx.Weight 58# 72# 102# 116# 152# 162# 169# 231# 231# 261# 330# 410# O Do not use propeller units with duct work. © Diameter of round vent pipe to fit oval opening. 03 PD 30 through PD 300—2 holes(and the level hanging adjustment feature).PD 350 through PD 400—4 holes. (Listed is the hole diameter and threads per inch to accept threaded rod). ® Dimension equals overall plus 6". • For natural gas;may vary depending on control availability. 14 ir MODINE GAS-FIRED UNIT HEATERS Models PD/BD, PDP/BDP, PSH/BSH PRODUCT FEATURES AND CUSTOMER BENEFITS Heat Exchanger 20-gauge aluminized or stainless steel for additional strength and corrosion resistance. Casing 22-gauge cold-rolled steel, with completely- painted outer panels, rounded corners and hidden fasteners for more-attractive appearance. Paint Electrostatically-applied, baked-on polyester powder paint for corrosion resistance and durability. Burner Burner can be easily removed for fast, efficient service. Available in aluminized or stainless steel. Level Hanging Adjustment Maintains level hanging, even if using a variety of field-installed accessories. Natural & Propane Gas Fuel Factory-installed or field-conversion kits available. Combustion Air Inlet Meters air to assure proper amount and eliminate flame disturbance. Intermittent Pilot Ignition Pilot is lit only when heat is called for. Includes a line voltage/25V control transformer. (Not standard on all models) Six-Terminal Wiring Board Easy thermostat and accessory wiring connections. Totally-Enclosed Motors Offers maximum atmospheric protection. Built-in thermal-overload protection on single-phase motors. Wing Screws For easy access to manifold, burner, and heat exchanger Die-Formed Venturi and Light-weight Fans Quiet operation. Safety Fan Guard 360 degrees, formed from heavy rod-stock. Optional finger-proof guards available. Limit Control Safety device shuts off gas supply if unit overheats. Adjustable Air-Deflector Blades . Horizontal blades standard; vertical blades optional for maximum air-current control. v OPTIONS AND ACCESSORIES Deflector Hoods Propeller Models Only Vertical Deflector Blades Finger-Proof Fan Guards Summer/Winter Switch Energy-Saver Kit Blower Models Only Low-Voltage Thermostats and Subbases Blower and Motor Enclosures Thermostat Guards with Locking Covers Combination Filter Rack and Duct Connector Power Exhauster Outlet Duct Connectors Transformers and Relays Discharge Nozzles High-Pressure Regulators Discharge Polytube Transitions Propane and Natural-Gas Conversion Kits Belt Guards Concentric Venting