Gas-Fired Power Vented Unit Heaters
Propeller & Blower Models
MODEL HDMODEL HDB
6-189.5
July, 2009
MODEL PDP
MODEL BDP
6-189.5
Page 2
TABLE OF CONTENTS
Modine’s power vented unit heaters are designed for the heating
requirements of commercial and industrial buildings with select
models available for residential garage heating as well.
For locations where negative pressure may be an issue or
energy savings over older gravity vented units may be desired,
Modine power vented gas fired unit heaters are your solution.
Table of Contents Page
Design Features - All Models...............................................................................3
Design Features - Model HD/HDB...........................................................................4
Design Features - Model PDP/BDP..........................................................................5
General Performance Data - Propeller Models HD/PDP..........................................................6
General Performance Data - Blower Models HDB/BDP ..........................................................7
Blower Performance Data - Blower Model HDB ................................................................8
Blower Performance Data - Blower Model BDP .............................................................9-11
Gas Control Data - All Models .............................................................................12
Field Installed Accessories................................................................................13
Downturn Hood Performance Data - Propeller Models HD/PDP ...................................................14
Velocity Generating Nozzle Performance Data - Blower Model BDP ...............................................15
Unit Selection.......................................................................................16-17
Dimensional Data - Models HD/HDB........................................................................18
Dimensional Data - Model PDP ............................................................................19
Dimensional Data - Model BDP ............................................................................20
Model Nomenclature - All Models ..........................................................................23
With 13 propeller and 11 blower model sizes available, the
units cover a wide variety of applications with input ranges
from 30,000 to 400,000 Btu/Hr in either natural or propane gas.
This catalog describes the design benefits, construction
features, performance data, unit selection procedure, and
the optional and accessory devices available.
WARNING
Do not locate ANY gas-fired unit in areas where chlorinated,
halogenated or acid vapors are present in the atmosphere.
As Modine Manufacturing Company has a continuous product improvement program, it reserves the right to change design and specifications without notice.
!
WARNING
Do not install in potentially explosive or flammable atmosphere
laden with dust, sawdust, or similar airborne materials.
!
2
6-189.5
Page 3
DESigN FEATURES - ALL UNiTS
Tubular Heat Exchanger Power Vented Unit
Heaters, 30-125MBH
For residential, commercial or industrial applications that require
a low profile unit, Modine offers the Hot Dawg®. Capable of
being installed just one inch below the ceiling, the superior
quality of the Hot Dawg makes it a preferred choice for a
variety of applications, including garages and workshops.
Figure 2.1 - Hot Dawg
Propeller Unit Heater
Model HDModel HDB
Table 3.1 - Standard Features and Factory Options ➀
Aluminized steel cabinet (gauge indicated)
Low profile casing design
Baked-on polyester powder paint for durability and corrosion resistence
Adjustable air-deflector blades
Fans engineered for quiet operation
Totally enclosed fan/blower motors (standard on sizes 100-400)
Fingerproof fan guard (optional on PDP units)
Two L-shaped mounting brackets (standard on sizes 30-75, accessory on sizes 100-125)
Adjustable mounting brackets for level hanging
Hinged tool-less bottom pan entry
In-shot burner on each heat exchanger tube for reliable performance, ease of
serviceability and low sound level on flame ignition/extinction
Exchanger
and Burner
Aluminized steel burner (409 stainless steel optional)
CSA certification for commericial and industrial use in the US and Canada
CSA certification for residential use in the US and Canada
Factory-installed power exhauster
Controls for natural gas (propane optional)
Single stage gas controls (two stage and mechanical modulation optional)
High limit safety control
Differential pressure switch for proof of venting
Flame roll-out safety switch
Controls
Direct spark ignition with continuous retry control system
Intermittent pilot ignition with continuous retry control system
Control terminal board and low voltage terminal connections
Gas control step down transformer with 24V gas controls
Fan delay timer
Figure 2.2 - Hot Dawg
Blower Unit Heater
Feature
6-189.5
Power Vented Unit Heater, 150-400MBH
For commercial or industrial applications that require higher
input ratings, the PDP/BDP is available in ratings that range
from 150,000 to 400,000 Btu/Hr in either natural or propane gas.
Figure 2.3 Propeller Unit Heater
Model PDPModel BDP
HDHDB PDP BDP
22 ga. 22 ga. 20 ga. 20 ga.
••
••••
••••
••••
••••
•••
••
•
••••
••••
••
••
••••
••
••••
••••
••••
••••
••••
••
••
••••
••••
••••
Figure 2.4 Blower Unit Heater
Model
••
••
•
••
••
3
Page 4
DESigN FEATURES - MODELS HD/HDB
Figure 4.1 - Factory Mounted Standard and Optional Features (Models HD/HDB)
➁
➀
➃
➂
➉
➄
➈
➅
➇
➆
➀ Power Exhauster (STD)
All HD series (low profile) unit heaters are supplied with a
round vent pipe connection.
➁ Pressure Switch (STD)
An automatic reset vent pressure switch is supplied on
all HD series (low profile)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.
➂ integrated Direct Spark Control Board (STD)
The integrated direct spark ignition control combines all
furnace control functions. The integrated board provides
digital control of the air mover, inducer, ignition, gas valve
and flame sense as well as monitoring the safety circuit at
all times. The board includes LED diagnostics for trouble
shooting and a fused power supply.
➃ gas Valve - (See Table 12.2)
a) Single Stage gas Valve - (STD)
The main gas valve is factory installed on the unit
heater gas train. The main gas valve provides regulator,
main gas, and manual shutoff functions. The valve is
redundant and provides 100% shut off.
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
regulator, main gas (100% and 50% fire), and manual
shutoff functions. The valve is redundant and provides
100% shut off.
4
➄ 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
for the gas controls, fan delay relay, field supplied motor
starter, etc. To determine the control transformer supplied
as well as any accessory/field supplied transformers
required, refer to Table 12.1
➅ Flame Sensor – (hidden, STD)
Remote flame sensor verifies ignition of all burners,
monitors the flame signal and communicates with the
integrated circuit board.
➆ Flame Roll Out Switch - (STD)
Flame roll out switches are mounted near the burners and
will shut off the gas supply in the event of an unsafe flame
roll out condition.
➇ Auto High Limit Switch - (hidden, STD)
The limit control is mounted in the air stream and will shut
off the gas supply in the event of overheating.
➈ Direct Spark igniter - (hidden, STD)
Provides spark for direct ignition of the burners.
➉ Manual Reset Control - (hidden, propeller 100-125 only)
6-189.5
Page 5
DESigN FEATURES - MODELS PDP/BDP
Figure 5.1 - Factory Mounted Standard and Optional Features (Models PDP/BDP)
➉
➆
➅
➈
➁
➇
All units include the standard (STD) features, and may include
the optional (OPT) features shown.
➀ gas Valve (See Table 12.2)
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.
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. 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 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.
➁ ignition controller - (STD)
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 natural and propane 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 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.
➂ 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 30 - 90 seconds after the
call for heat has been satisfied to remove the residual heat
from the heat exchanger.
Note: Mechanical modulation units are used on make-up air
only and do not require or include time delay relays.
➂
➄
➀
6-189.5
➃
➃ 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.
➄Control 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 for the gas
controls, fan delay relay, field supplied motor starter, etc.
To determine the control transformer supplied as well as any
accessory/field supplied transformers required, refer to
Table 12.1
➅Blower 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. The blower motor is
supplied with an adjustable sheave that can be used to
increase/decrease the blower RPM.
➆High Limit Switch - (STD)
The automatic reset high limit switch is factory installed on the
side of the unit heater. If the limit temperature is exceeded,
the gas controls are de-energized until the switch is cooled.
➇Pressure Switch (STD)
A automatic reset vent pressure switch is supplied on all
power vented unit heaters 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.
➈Power Exhauster (STD)
All power vented unit heaters are supplied with a round vent
pipe connection. The power exhauster may be rotated 180° to
allow for various venting directions.
➉Finger 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.
5
Page 6
gENERAL PERFORMANCE DATA - MODELS HD & PDP
Table 6.1 - Propeller Unit Model HD and PDP general Performance Data
3 Phase208V Total Amps2.05 2.051.381.38 2.602.322.212.822.82 4.265.426.14 6.14
230V
3 Phase230V Total Amps1.85 1.851.251.25 2.352.102.002.552.55 3.854.905.55 5.55
460V
3 Phase460V Total Amps0.93 0.930.630.63 1.181.051.001.281.28 1.932.452.78 2.78
575V
3 Phase575V Total Amps0.74 0.740.500.50 0.940.840.801.021.02 1.541.962.22 2.22
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.)
➀
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.
➁
All motors used are produced, rated and tested by reputable manufacturers in accordance with NEMA standards and carry the standard warranty of both the motor manufacturer and Modine.
➂
All motors are 115V single phase motors with built-in thermal overload protection. Model sizes 30-75 are open motors, sizes 100-400 are totally enclosed.
Air Temp. Rise (°F) 40-70 40-70 35-65 45-75 40-7040-7040-7040-7040-7040-7040-70
Max. Mounting
Height (Ft.) ➁ 7-13 7-16 8-19 8-17 14151316181919
Heat Throw (Ft.) @
Max Mtg Ht ➁ 20-45 24-57 27-68 27-59 49524758646768
Motor Type ➂P.S.C. P.S.C. P.S.C.P.S.C.T.ET.ET.ET.ET.ET.ET.E
Motor HP1/41/31/21/2
Motor RPM
Table 7.2 - Blower Unit Model HDB Operating Electrical Data
Supply
Voltage
115V
115V
1 PhaseTotal Amps6.48.111.5 11.5
1 Phase
208V
1 Phase
230V
1 Phase
208V
208V
3 Phase
3 Phase208V Total Amps3.54 4.48 6.36 6.36
230V
230V
3 Phase
3 Phase230V Total Amps3.20 4.05 5.75 5.75
460V
460V
3 Phase
3 Phase460V Total Amps1.60 2.03 2.88 2.88
575V
575V
3 Phase
3 Phase575V Total Amps1.28 1.62 2.30 2.30
Power Code
01 (115V)
01 (115V) with
Transformer
01 (115V) with
Transformer
01 (115V) with
Transformer
01 (115V) with
Transformer
01 (115V) with
Transformer
01 (115V) with
Transformer
635-
794-
1111
1389
Max
1100
1100 Max 1100 Max 1100
Max
1140-
2116
1235-
2058
1587-
2778
1725172517251725172517251725
Model HDB SizesModel BDP Sizes
6075100125150175200250300350400
Motor Amps5.47.19.59.5
Transformer kVAn/an/an/an/a
Transformer kVA1.01.01.51.5
208V Total Amps3.54 4.48 6.36 6.36
Transformer kVA1.01.01.51.5
230V Total Amps3.20 4.05 5.75 5.75
Transformer kVA1.01.01.51.5
Transformer kVA1.01.01.51.5
Transformer kVA1.01.01.51.5
Transformer kVA1.01.01.51.5
1852-
3241
2116-
3704
See Table 9.1
2646-
4630
See Table 7.3
3175-
5556
3704-
6481
4233-
6584
Table 7.3 - Blower Unit Model BDP Operating Electrical Data
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
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.)
➀
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.
➁
All motors used are produced, rated and tested by reputable manufacturers in accordance with NEMA standards and carry the standard warranty of both the motor manufacturer and Modine.
➂
All motors are 115V single phase motors with built-in thermal overload protection. Model sizes 60-75 are open motors, sizes 100-400 are totally enclosed.
6-189.5
7
Page 8
BLOWER PERFORMANCE DATA - MODEL HDB
Table 8.1 - Power Code Description - HDB Models
Power Code Unit Voltage HDB60 HDB75 HDB100 HDB125
01 115/60/1 1/4 HP 1/3 HP 1/2 HP 1/2 HP
Blower Speed Curves
Models (HDB 60-125)
Low Medium High
70
65
60
55
50
45
Temperature Rise (Deg. F)
40
35
0.00
70
65
60
55
50
45
Temperature Rise (Deg. F)
40
35
0.00
0.20
0.10
External Static Pressure (IN. WC)
0.20
0.10
External Static Pressure (IN. WC)
HDB 60
0.30
0.40
HDB 75
0.30
0.40
0.50
0.50
0.60
0.60
0.70
0.70
635
684
741
808
889
988
1111
1270
794
855
926
1010
1111
1235
1389
1587
CFM
CFM
HDB 100
65
60
55
50
45
40
Temperature Rise (Deg. F)
35
0.000.100.20 0.300.40 0.500.600.700.80
External Static Pressure (IN. WC)
75
70
65
60
55
50
Temperature Rise (Deg. F)
45
40
0.000.100.20 0.300.40 0.500.600.700.80
HDB 125
External Static Pressure (IN. WC)
1235
1323
1425
1543
1684
1852
2058
2315
1140
1235
1347
CFM
1481
1646
1852
2116
CFM
8
6-189.5
Page 9
BLOWER PERFORMANCE DATA - MODEL BDP
Table 9.1 - Power Code Description — Blower Model BDP ➀
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.
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.
➂Models not shown use same HP and drive numbers
as cataloged.
➃Performance is the same; motor sheave
accommodates larger shaft. When ordering 575V,
specify the listed 575V drive.
1-1/2 -198
1-1/2 -180
6-189.5
11
Page 12
gAS CONTROL DATA - ALL MODELS
Table 12.1- Electrical/Control Code Selection Details - All Models
Model
HD/HDB
PDP/BDP 1151
PDP
PDP/BDP
BDP
BDP
BDP
➀ Unit power code must match supply voltage, control voltage must match unit power.
➁ Certain 208V 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.
Supply
Voltage
11511151none11,12,21,22 115 to 25 none
208, 230,
460, or 575
208
230
460
575
208
230230 230 to 25
208
230230 230 to 25 230V
460
575
460
575575 575 to 25
Phase
1 or 31151none11,12,21,22 115 to 25 none
1 or 3
Unit Voltage
(Control & Mtr)
1151
3
1
3
32303
3
208
208
460
Phase
Accessory Transformer
Required
(Order Separate)
none
208V to 115V ➁
230V to 115V ➁
460 to 115V ➂
575 to 115V ➂
1
none 31,60,64,86,88
3
460 to 230V ➀➂
575 to 230V ➀➂
3 none 32,93
Control Codes
Available
30,59,63,85,87 115 to 25 none
60,64,88 230 to 25 230V
Factory
Installed
Transformer
208 to 25
208 to 25 208V
460 to 25
Table 12.2 - gas Controls – All Models ➀
Model
HD/HDB
PDP/BDP150-400
BDP150-400
➀All ignition controls are 100% Shut-Off with Continuous Retry.
➁Available on BDP models only.
Model
SizeControl System Description
Single-Stage, Direct Spark Ignition
30-125
75-125
Utilizes a single-stage combination gas control and an
ignition control. Gas is automatically lit with the direct
spark igniter on call for heat.
Two-Stage, Direct Spark Ignition
Utilizes a two-stage combination gas control (fires at
50% or 100% of full rated input) and an ignition control.
Gas is automatically lit with the direct spark igniter on
call for heat.
Single-Stage, Intermittent Pilot Ignition
Utilizes a single-stage combination gas control and an
ignition control. Pilot is automatically lit on call for heat.
Two-Stage, Intermittent Pilot Ignition
Utilizes a two-stage combination gas control (fires at
50% or 100% of full rated input) and an ignition control.
Pilot is automatically lit only on call for heat.
Mechanical Modulation with Automatic Pilot Ignition
Utilizes a modulating combination gas control and an
ignition control. 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. Natural gas only.
12
6-189.5
Service
Voltage
115V
115V
208/230V31
460V
575V
115V
208/230V86
460V
575V
115V
208/230V64
115V
208/230V88
115V
208/230V60
Gas
Type
Natural11
Propane21
Natural12
Propane22
Natural
Propane
Natural
Propane
Natural
Control
Code
30
32 ➁
33➁
85
93 ➁
94 ➁
63
87
50
Control
Voltage
24V
24V
24V
Motor Starter
Coil Voltage
none
24V
Page 13
ACCESSORiES
Table 13.1 - Field installed Accessories
Vertical Deflector Blades - Allows directional discharge air control in the left and right
directions.
Downward Air Deflector Hoods - Available in 30°, 60°, and 90° configurations these
deflector hoods enable the unit to be mounted higher while still providing heat to the building
occupants. Refer to page 14 for further details.
Vibration Isolation Kit - Minimizes unit vibration transmission to the building structure.••
Pipe Hanger Adapter Kits - Allows the unit to be suspended by 3/4" pipe from the standard
3/8" holes found in the top of the unit.
Discharge Transition for Polytube - Allows for the connection of polytube (not included) to
the discharge of the unit.
Blower Enclosure with or without Filter Rack - Totally encases the motor and blower
assembly. Optional filters provide filtering of the air prior to entering the heater.
Cabinet and Air Mover
Discharge Velocity Generating Nozzle - Four varieties of velocity generating nozzles
allow for increased application flexibility. These nozzles increase mounting height while also
directing the airflow to the desired locations. Refer to page 15 for further details.
Belt Guard - Provides protection for building occupants as well as service people from the
drive belt and sheaves.
Natural Gas to Propane Gas Conversion Kit - Provides all required parts as well as
instructions to convert a natural gas unit to propane gas.
Single or Two-Stage Room Thermostats - See Table 13.2 for details.••••
Room Thermostat Guard - Clear plastic for room thermostats. Guard is locking type and
comes with two keys.
Summer/Winter Switch - Allows a choice of unit fan operation. In the summer position, the
fan runs continuously for ventilation while allowing the gas controls to fire on a call for heat
from the thermostat. In the winter position, the fan runs intermittently on a call for heat from
the thermostat.
Feature
Model
HDHDB PDP BDP
••••
••••
••
••
••
•
•
••••
••••
••••
Stepdown Transformers - Used to operate propeller units on 208/230/460/575V/3Ph
supply voltage. Also may be required for control circuits for blower units. Refer to Table
Controls
12.1 for further selection details.
Control Relays - This single pole single throw relay consists of a 24V coil with a maximum
contact rating of 18 amps at 115V.
Gas Pressure Regulator - Fisher Type S-100-, 3/4 inch pressure regulator for 5 to 10 psi
inlet pressure capacity, 30 MBH to 400 MBH.
Energy Saver Kit - Used to lower total energy costs by reducing stratified air in high
mounting height applications. This kit consists of a controller with a SPDT (16A @ 120V)
switch and a temperature rage of 30° - 100°F.
Table 13.2 - Field installed Thermostats
TypeDescription
Single-Stage
Thermostats
Two-Stage
Thermostats
Room
Thermostat
Room
Thermostat
Sub-Base
Room - Digital
(with switching)
Duct
Thermostat
HONEYWELL T822D1008 - 1.0 amp @ 30VAC; 55° - 95°F temperature range; heat anticipator 0.18 to 0.8 Thermostat
amp rating
ROBERTSHAW CM-260 - 1.5 AMP @ 30VAC; 45° - 75°F temperature range; heat anticipator 0.18 to 1.0 amp rating
SB-3A-1 Sub-base for Robertshaw CM-260 thermostat #79187 - Sub-base switching: System - auto/off, fan- auto/on
HONEYWELL TH5220D1029 digital non-programmable room stat with switching - range 40-90°F
Note: Can be configured as a single-stage thermostat.
Note:
X = Feet from Heater to Start of Floor Coverage
Y = Feet to End of Floor Coverage
Z = Feet to End of Throw
Y
X
30 DOWNTURN
Z
Y
Z
14
6-189.5
Page 15
PERFORMANCE DATA - VELOCiTY gENERATiNg NOZZLES
S
T
H
Figure 15.1 - Velocity generating Nozzles ➀
40° DOWNWARD
NOZZLE
T
40° SPLiTTER
NOZZLE
➀Velocity generating nozzles available for Blower Model BDP only.
S
T
H
S
H
S
90° VERTiCAL
NOZZLE
S
5-WAY
NOZZLES
S
Table 15.1 - Blower Unit Model BDP Velocity generating Nozzle Performance Data (feet) ➁
BDP Blower Model Size
Nozzle
Type
40°
Downward
Nozzle
90° Vertical
Nozzle
40° Splitter
Nozzle
5-Way
Nozzle
➁The 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 10 and 11. Mounting height measured from bottom of unit.
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 (if applicable).
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 natural or propane gas determined by the design
engineer.
6. gas controls
Either single stage, two stage, or mechanical modulation as
determined by the design engineer.
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 = 156,000 Btu/Hr per design engineer
2. External Static Pressure = 0.0
3. Internal Static Pressure = 0.0. No static producing accessories
are required
4. Heat exchanger and burner = 409 Stainless Steel
5. Gas Type = Natural
6. Gas Controls = Single Stage Intermittent Pilot Ignition (IPI)
7. Supply Voltage: 460V/60Hz/3Ph
8. Altitude: 1,000 feet
Selection Example Solution (Propeller Unit)
With the information listed above, the basic model, using the
information in this catalog and the Model Nomenclature shown on
page 23, can be selected as shown in the following example:
1. Determine the Model and input Rating (MBH):
Using the Heating output capacity, the Furnace Input Rating is
determined from Table 6.1. The closest model to 156,000
Btu/Hr output has an Btu/Hr Input rating of 200,000 Btu/Hr so the
Furnace Input Rating = 200. The corresponding model for a 200
size, propeller, power vented unit heater is PDP. The model and
size are a PDP200.
2. Determination of Heat Exchanger/Burner/Drip Pan Material:
From item #4 in the example, the Heat Exchanger and Burner
required are 409 Stainless Steel. Thus, the Heat Exchanger
Material = S from the Model Nomenclature on page 23. The
burner is an option placed on the order.
3. Determine the development sequence:
From item #6 in the example, the IPI results in the Development
Sequence = E from the Model Nomenclature on page 23.
4. Determine Power Code Required:
Referring to Table 6.2, it can be seen that the supply voltage
from the example conditions is not available (460V). A
transformer kit selected later in this example must be used.
In this instance, from Table 6.2 select the 115V/60Hz/1Ph power
code (PC) = 01 unit.
5. Determine the control type:
From items #5 and #6 in the example conditions, the gas type is
Natural Gas and controls are single stage IPI. Given the supply
voltage listed from the example conditions (460V) and by
looking up the supply voltage of 460V/60Hz/3Ph in Table 12.2 for
propeller units, it directs us use to a unit voltage of 115V. We
then refer to Tables 12.1 and 12.2, locate the single-stage
options and select the appropriate Control Code (CC) of 30.
Remember a step-down transformer will be selected later in this
example.
16
At this point we have a full model number of: PDP200SE0130
6. 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 12.1 we see that a 460V to 115V step down
transformer is required.
7. Altitude:
Since deration of gas fired unit heaters is only required for
units to be installed at 2,000 ft or greater, no high altitude kit is
required.
6-189.5
Page 17
UNiT SELECTiON
Selection Example Conditions (Blower Unit)
In the following example, select a unit heater to meet the
following conditions:
1. Heating output capacity = 156,000 Btu/Hr per design engineer
2. External Static Pressure = 0.2.
3. Internal Static Pressure = 0.0. No static producing accessories
are required
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: 1,000 feet
9. CFM = 2,400
Selection Example Solution (Blower Unit)
With the information listed above, the basic model, using the
information in this catalog and the Model Nomenclature shown on
page 23, can be selected as shown in the following example:
1. Determine the Model and input Rating (MBH):
Using the Heating output capacity, the Furnace Input Rating is
determined from Table 7.1. The closest model to 156,000 Btu/Hr
output has an Btu/Hr Input rating of 200,000 Btu/Hr so the
Furnace Input Rating = 200. The corresponding model for a 200
size, blower, power vented unit heater is BDP. The model and
size are a BDP200.
2. Determination of Heat Exchanger/Burner/Drip Pan Material:
From item #4 in the example, the Heat Exchanger and
Burner required are aluminized steel. Thus, the Heat Exchanger
Material = A from the Model Nomenclature on page 23.
3. Determine the development sequence:
From item #6 in the example, the IPI results in the Development
Sequence = E from the Model Nomenclature on page 23.
4. Determine Power Code Required:
From page 10 we see that a unit requiring a static of 0.2 and a
cfm of 2400 requires a 1/3 horsepower motor with a -102 drive
that is turned open 4.0 turns. Referring to Table 9.1 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 = 21.
5. Determine the control type:
From item #5 in the example, the gas type is Propane Gas and
controls are Two Stage. Given the supply voltage listed in #7, we
can refer to Tables 12.1 and 12.2 to determine what controls are
needed. This results in a Control Code (CC) = 88.
At this point we have a full model number of: BDP200AE2188
6. Altitude:
Since deration of gas fired unit heaters is only required for
units to be installed at 2,000 ft or greater, no high altitude kit is
required.
Figure 20.2 - Combustible Material and
Service Clearances
Access
Side
A
C
B
D
Table 20.2 - Combustible Material
Clearances ➀
Model Side Side Top Bottom Exhauster
Size (A) (B) (C) (D) (Not shown)
150-175 1 1 4 12 2
200-400 1 1 5 12 3
➀ Provide sufficient room around the heater to allow for
Access Non-Access Top of Power
proper combustion and operation of fan. Free area
around the heater must not be less than 1-1/2 times
the discharge area of the unit.
20
6-189.5
Page 21
SPECiFiCATiONS - ALL MODELS
general
A. Standards
All unit(s) shall include:
A.1. C.S.A. (Canadian Standards Association) design certification for
use in both the US and Canada to the ANSI Z83.8 - latest
revision, standard for “Gas Unit Heater and Gas-Fired Duct
Furnaces” for safe operation, construction, and performance.
B. Mechanical Configuration
B.1. Furnace(s) section with 80% minimum efficiency provided by
an indirect-fired heat exchanger with dimpled tube pattern for
efficient heat transfer. (PDP/BDP models)
B.2. Furnace(s) section with 80% minimum efficiency provided by an
indirect-fired tubular heat exchanger with individually fired tubes.
(HD/HDB models)
C. Venting Arrangement
C.2. The venting shall be a power exhausted arrangement. The unit
shall be tested to insure proper ignition when the unit is
subjected to 40 mile per hour wind velocities. The unit shall also
include a factory mounted differential pressure switch designed
to prevent main burner ignition until positive venting has been
proven.
D. Unit Casing
D.1. The unit heater(s) casing shall be constructed of not less than
20 gauge aluminized steel, die formed for smooth contours and
minimization of exposed fasteners. (PDP/BDP models)
D.1.a. The unit heater(s) casing shall be constructed of not less than
22 gauge aluminized steel with minimization of exposed
fasteners. (HD/HDB models)
D.2. All exterior casing parts casing parts shall be cleaned of all oils
and a phosphate coating applied prior to painting. The exterior
casing parts shall then be painted with an electrostatically
applied baked-on gray-green polyester powder paint (7-mil
thickness) for corrosion resistance.
D.3. The unit shall be furnished with horizontal air deflectors. The
deflectors are adjustable to provide for horizontal directional
airflow control (up or down).
E. Furnace Section
E.1. The heat exchanger(s) shall be made of 20 gauge aluminized
steel tubes and headers (opt) 20 gauge 409 stainless steel tubes
and headers. (PDP/BDP models)
The thermal efficiency of the unit(s) shall be a minimum of 80%
efficient for all air flow ranges.
Each heat exchanger tube shall be individually and directly
flame-fired. The heat exchanger tube shall be contoured and
dimpled to provide efficient heat transfer and crimped to allow for
thermal expansion and contraction. The flue collector box shall
be made of 20 gauge aluminized steel.
E.1.a. The heat exchanger(s) shall be made of 18 gauge aluminized
steel (opt) 409 stainless steel tubes and headers tubes and
headers. (opt 409 stainless steel). (HD/HDB models)
The thermal efficiency of the unit(s) shall be a minimum of 80%
for all air flow ranges.
E.2. The heat exchanger(s) seams and duct connections shall be
certified to withstand 0.5" W.C. external static pressure without
burner flame disturbance.
E.3. The burner(s) shall be made of the same material as the heat
Exchanger with a thickness of not less than 28 gauge. Burner(s)
shall have non-clogging, slotted ports with a stainless steel
separator strip designed for good lighting characteristics without
noise of extinction for both natural and propane gas.
(PDP/BDP models)
E.3.a. The burner(s) shall be in-shot type, directly firing each heat
exchanger individually and is designed for good lighting
characteristics without noise of extinction for both natural and
propane gas. (HD/HDB models)
E.4. The orifices shall be provided on propane gas with adjustable air
shutters for controlling the primary air mixture. (PDP/BDP models)
E.5. The ignition controller(s) shall be 100% shut-off with continuous
retry.
E.6. The gas pressure shall be between 6-7" W.C for natural gas.
(opt) The gas pressure shall be 11-14" W.C. for propane gas.
E.7. The solid state ignition system shall intermittently light the pilot
each time the system is energized. Once the pilot is proven, the
main gas valve shall open and allow gas flow to the main burner.
(PDP/BDP models)
E.7.a. The solid state ignition system shall directly light the gas by
means of a direct spark igniter each time the system is
energized.
E.8. The unit gas controls shall be provided with the following:
E.8.d. (opt) Single-stage gas controls with a single-stage combination
gas control, an ignition control, and a single-stage low voltage
thermostat. The unit fires at 100% full fire based on a call for
heat from a room thermostat.
E.8.e. (opt) Two-stage gas controls with a two-stage combination gas
control, an ignition control, and a two-stage low voltage
thermostat. The unit fires at 50% fire on low stage or 100% fire
on high stage of the unit based on the call for heat from either a
room or duct thermostat.
E.8.f. (opt) Mechanical modulation gas controls with a mechanical
modulating gas control and an ignition control. The discharge
air temperature is maintained by setting the non-electric control
dial of the modulating gas valve in one of ten positions ranging
from Lo to Hi. A hydrostatic sensing bulb that is mechanically
attached to the modulating gas valve is factory installed in the
discharge air stream and modulates the gas flow. Modulation
occurs between 50% through 100% full fire. When the discharge
air hydrostatic sensing bulb is satisfied, the modulating valve
closes completely. The hydrostatic sensing bulb is included with
the system. Because this control is non-electric, it cannot be
used with a room override thermostat. Natural gas only.
(PDP/BDP models)
E.9. Automatic reset high limit switch.
E.10. A time delay relay that delays the start of the air mover to allow
the heat exchanger a warm-up period after a call for heat. The
time delay relay shall also continue the air mover operation after
the thermostat has been satisfied to remove any residual heat on
the heat exchanger. (Note: Mechanical modulation units not
supplied with a time delay relay)
E.11. The unit shall be orificed for up to 2000' elevation above sea
level. (opt) The unit shall be orificed for _____ elevation above
sea level.
F. Electrical
F.1. All electrical components shall carry UL, ETL, or CSA listing.
F.2. Low voltage terminal board.
F.3. A single step down transformer shall be provided for all unit
controls.
g. Air Mover
G.1. The motor horsepower shall be ____.
G.2. The motor wiring shall be in flexible metal BX conduit.
G.3. (opt) The motor shall be controlled by a time delay relay (opt)
and motor starter.
G.4. Propeller models shall meet the following requirements.
G.4.a. The motor type shall be Single-speed, totally enclosed (TE)
(ODP on units 75MBH and smaller)
6-189.5
21
Page 22
SPECiFiCATiONS - ALL MODELS
G.4.b. The motor shall be rated for:
(a) 115V/60Hz/1Ph
(b) 208V/60Hz/1Ph (PDP model)
(c) 230V/60Hz/1Ph (PDP model)
G.5. Blower models shall meet the following requirements.
G.5.a. The motor type shall be Single-speed, totally enclosed (TE)
(ODP on units 75MBH and smaller)
G.5.b. The motor shall be rated for:
(a) 115V/60Hz/1Ph
(b) 208V/60Hz/1Ph (BDP model)
(c) 230V/60Hz/1Ph (BDP model)
(d) 208V/60Hz/3Ph (BDP model)
(e) 230V/60Hz/3Ph (BDP model)
(f) 460V/60Hz/3Ph (BDP model)
(g) 575V/60Hz/3Ph (BDP model)
G.5.c. The motor shall be provided with an adjustable motor sheave to
allow for minor adjustment of the blower rpm at the job site.
(BDP model)
G.5.d. The blower shall be a double width, double inlet (DWDI), forward
curved, belt driven, assembly with spider ball bearings.
G.5.e. The motor shall be provided with three speed taps to allow for
adjustment of the blower rpm at the job site. (HDB model)
G.5.f. The blower shall be a double width, double inlet (DWDI), forward
curved, direct motor drive assembly with spider ball bearings.
(HDB model)
H.Mounting
H.1. The unit shall be equipped with tapped holes to accept 3/8-16
threaded rod for suspension. (PDP/BDP models)
H.1.a. The unit shall be equipped with mounting brackets to allow for
threaded rod suspension or to be bolted directly to the ceiling
support structure allowing 1" of top clearance. (HD/HDB models)
H.2. Propeller Unit (Sizes 150 – 300) to have two point adjustable
suspension points to allow for level hanging with a variety of
accessories.
H.3. Propeller unit (Sizes 30-75 and 350-400) and blower units
(Sizes 60-300) to have 4 suspension points.
H.4. Blower unit (Sizes 350, 400) to have 6 suspension points.
constructed of 20 ga. cold rolled steel with baked-on gray-green
polyester powder paint.
J.21. (opt) A 208V to 115V step down shall be provided for operation
of the propeller unit.
J.22. (opt) A 230V to 115V step down shall be provided for operation
of the propeller unit.
J.23 (opt) A 460V to 115V step down shall be provided for operation
of the propeller unit.
J.24. (opt) A 575V to 115V step down shall be provided for operation
of the propeller unit.
K. Thermostats
The unit shall be provided with the following thermostat:
K.1. A single stage room thermostat with a 55°-95°F range.
K.2. A single stage room thermostat with a 45°-75°F range.
K.3. A single stage room thermostat with a 45°-75°F range with sub-
base for System auto/off and Fan auto/on control.
K.4. Honeywell TH5220D1029 digital non-programmable room stat
with switching - range 40-90°F.
K.5. A field installed two-stage duct thermostat with a 0°-100°F range
and 20-foot capillary.
K.6. A field installed two-stage duct thermostat with a 55°-175°F range
and 20-foot capillary.
J. Accessories
The following field installed accessory control devices shall be
provided with the unit:
J.1. A 1-5 psi gas pressure regulator to reduce the inlet gas pressure
for the operating controls.
J.2. A clear plastic thermostat guard with two keys for room
thermostats.
J.3. A SPST summer winter switch for continuous fan in the summer
position and intermittent fan and burner in the winter position.
J.4. Pipe Hanger Adapter Kit to facilitate threaded pipe suspension.
(PDP/BDP models)
J.5. An Energy Saver Kit used to reduce stratified air in high mounting
height applications. (PDP/BDP models)
J.7. Vertical Deflector Kit to enables side distribution of airflow.
J.8. A blower enclosure fully encloses blower to enable the
attachment of filter racks and/or duct.
J.9. A combination filter rack/duct connector containing a 1" thick,
cleanable filter.
J.11. A belt guard enclosing the belts and sheaves (pulleys) on a
blower type unit heater. (BDP model)
J.12. Propane conversion kit for converting natural gas units to
propane gas.
22
6-189.5
Page 23
MODEL NOMENCLATURE
Figure 23.1 - Model Number Designations
PDP 200 A E 01 30
Unit Configuration
HD - Tubular Power Vented Propeller Unit
HDB - Tubular Power Vented Blower Unit
PDP - Propeller Unit Power Vent
BDP - Blower Unit Power Vent