Modine HBP, HCP, HDP, HPP, HBG, HCG, HDG, HPG gas-fired furnace Installation and service manual

5-572.8

5H0762330001

August, 2015

installation and service manual gas-fired weatherproof duct furnaces/make-up air units power vented models HBP/HcP/HdP/HPP gravity vented models HBG/HcG/HdG/HPG

All models approved for use in California by the CEC.

CAUTION

to prevent premature heat exchanger failure do not locate any gas-fired units in areas where chlorinated, halogenated, or acid vapors are present in the atmosphere.

FOR YOUR SAFETY

if you smell Gas:

1. open windows.

2. Don’t touch electrical switches.

3. extinguish any open flame.

4. immediately call your gas supplier.

WARNING

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. installing, starting up and servicing heating, ventilation and air conditioning equipment poses significant hazards and requires specialized knowledge of modine products and training in performing those services. failure to have any service properly performed by, or making any modification to modine equipment without the use of, qualified service personnel could result in serious injury to person and property, including death. therefore, only qualified service personnel should work on any modine products.

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.

IMPORTANT

the use of this manual is specifically intended for a qualified installation and service agency. a qualified installation and service agency must perform all installation and service of these appliances.

inspection on arrival

1. Inspect unit upon arrival. In case of damage, report it immediately to transportation company and your local factory 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).

THIS MANUAL IS THE PROPERTY OF THE OWNER.

PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.

sPecial Precautions / taBle of contents 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.

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 acid) 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. To prevent premature heat exchanger failure, observe heat exchanger tubes by looking at the heat exchanger through the field installed access openings in connecting ductwork in models HBG/HBP or the unit access doors in models

HDG/HDP, HCG/HCP, or HPG/HPP. If the bottom of the tubes become red while blower and duct furnace are in operation, check to be sure the blower has been set to the proper rpm for the application. Refer to page 16 for Blower

Adjustments.

4. Start-up and adjustment procedures should be performed by a qualified service agency.

5. To check most of the Possible Remedies in the troubleshooting guide listed in Table 52.1, refer to the applicable sections of the manual.

dANGER

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

WARNING

CAUTION

table of contents

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. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.

4. 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.

5. Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105°C.

6. 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.

7. Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% greater than the rated voltage.

8. When servicing or repairing this equipment, use only factory-approved service replacement parts. A complete replacement parts list may be obtained by contacting Modine

Manufacturing Company. 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 owners risk.

Inspection on Arrival ............................................................1

Special Precautions .............................................................2

SI (Metric) Conversion Factors ...........................................3

Unit Location .......................................................................3

Combustible Material and Service Clearances ..........3

Sound and Vibration Levels ...............................................4

Rigging Instructions .............................................................4

Curb or Sub-Base Mounting ................................................4

Slab Mounting ....................................................................4

Duct Installation ...................................................................5

Unit Installation ....................................................................6

Venting .........................................................................6

Gas Connections .........................................................8

Considerations for Elevation ......................................10

Electrical Connections ............................................... 11

Evaporative Cooler .................................................... 11

2

1. Appliances are designed for outdoor installation only.

DO NOT LOCATE APPLIANCES INDOORS.

2. Purging of air from gas lines should be performed as described in ANSI Z223.1 - latest edition “National Fuel

Gas Code”, or in Canada in CAN/CGA-B149 codes.

3. Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% less than the rated voltage.

4. Do not reuse any mechanical or electrical component which has been wet. Such component must be replaced.

5-572.8

Cooling Coil Specifications and Installation ...............12

Start-Up Procedure ...........................................................14

Pilot Burner and Main Burner Adjustment ................14

Blower Adjustment ....................................................16

Lubrication Recommendations .................................16

Damper Linkage Adjustment ....................................16

Control Operating Sequence ....................................17

Options ..............................................................................19

General Performance Data ...............................................27

Unit Selection ....................................................................29

Pressure Drop and Blower Performance Data. .................31

Blower Sheave Assembly Data .........................................35

Electrical Data ...................................................................39

Motor Data .........................................................................39

Dimensions Uni .................................................................41

Weights ..............................................................................49

Maintenance ......................................................................50

Service & Troubleshooting ................................................52

Model Designations ...........................................................54

Start-Up Checklist .............................................................56

Model Nomenclature .........................................................57

Commercial Warranty ...........................................Back Page

si (metric) conversion factors / unit location si (metric) conversion factors table 3.1

to convert multiply By to obtain

"W.C.

psig

°F

inches

feet

CFM

0.24

6.893

(°F-32) x 0.555

25.4 kPa kPa

°C mm

0.305 meters

0.028 m

3

/min

to convert multiply By to obtain

CFH 1.699 m

3

/min

Btu/ft3 0.0374 mJ/m

3

pound 0.453 kg

Btu/hr 0.000293 kW/hr

gallons

psig

3.785

27.7 liters

"W.C.

unit location

dANGER

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

CAUTION

Appliances are designed for outdoor installation only.

DO NOT LOCATE APPLIANCES INDOORS.

IMPORTANT

To prevent premature heat exchanger failure, do not locate

ANY gas-fired appliances in areas where corrosive vapors (i.e. chlorinated, halogenated or acid) are present in the atmosphere.

location recommendations

1. When locating the furnace, consider general space and heating requirements and availability of gas and electrical supply.

2. Unit must be installed on the positive pressure side of the circulating blower.

3. Be sure the structural support at the unit location site is adequate to support the weight of the unit and any other required support structure. 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. For HBG/HCG/HDG/HPG units, be sure

figure 3.1 - combustible material & service clearances ➀

clearances are maintained to the combustion air/vent cap.

For HBP/HCP/HDP/HPP units, be sure clearances are maintained to the combustion air inlet louvers and power exhauster discharge cover. Units are designed for installation on non-combustible surfaces or combustible surfaces with the minimum clearances shown in Figure 3.1,

Table 3.2, and Table 3.3

6. On units that have fresh air openings, a method should be provided to prevent water and debris from entering the unit such as a rainhood and bird screen, evaporative cooler, etc.

7. On HBG/HBP and HCG/HCP models, adequate space must be provided to install the discharge duct as shown in Figure

6.1. to insure even air flow across the heat exchanger.

table 3.2 - combustible material clearances

model size

75

100/125

150/175

200/225

250/300

350/400

500/600

700/800

840/960

G access side

(a)

0"

0"

0"

0"

0"

0"

0"

0"

0"

P access side

27"

30"

41"

30"

(a)

18"

20"

25"

41"

41"

digit 3 front & rear

G or P non-access side

(B)

3"

3"

3"

4"

5"

11"

5"

11"

11"

( c )

0"

0"

0"

0"

0"

0"

0"

0"

0"

table 3.3 - service clearances

Model

Size

75

100/125

150/175

200/225

250/300

350/400

500/600

700/800

840/960

Access Side

(A)

18"

20"

25"

27"

30"

41"

30"

41"

41"

Non-Access Side

( C )

6"

36.00

B

Combustion Air/Vent

Cap on Models with

Digit 3=G

B

27.00

C

Power Exhauster

Discharge Cover on Models with

Digit 3=P

SIDE VIEW

➀

Minimum clearance to combustible for HBP/HCP/HDP/HPP is 1.0" from rooftop.

5-572.8

A

FRONT VIEW

3

unit location/roof curB installation sound and vibration levels

All mechanical equipment generates some sound and vibration that may require attenuation. Libraries, private offices, and hospital patient rooms 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. Frequently, units can be located above utility areas, corridors, restrooms, and other noncritical areas. Generally, a unit should be located within 15 feet of a primary support beam. Smaller defections mean lesser vibration and noise transmission.

Roof curb must be installed level. If roof is pitched it will be necessary to construct a sub-base on which to install the curb.

Install the unit over roof decking with 2" acoustic fiberglass lining within curb area for sound attenuation. The return air duct should be acoustically lined and should be installed with a flexible connection. If the ceiling space is used as a plenum, the acoustically lined return intake duct should form an inverted tee with five foot minimum legs in each direction.

The discharge duct should be acoustically insulated and should have a flexible connection as illustrated.

figure 4.1 - suggested sound attenuation curb or sub-Base mounted sites

An optional roof curb is available to simplify site preparation and raise the unit above roof water and snow level for drainage.

It can be installed with the roof, and in advance of the unit.

A sub-base must be furnished by the installer if no curb is supplied for the roof. The sub-base, either steel or concrete, must provide required support with the unit bolted to subbase. The following are some general guidelines for roof curb installed units:

1. The roof structure must be adequately designed to support the live weight load of the unit and any other required support structure. For the bearing loads normally encountered, the roof curb should be supported at points no greater than five feet apart. Additional truss reinforcement should be provided, if necessary.

2. Roof curbs supplied by Modine are fabricated from 16 gauge galvanized steel and supplied knocked down for assembly on the job site. The curb consists of two side pieces, two end pieces, gasketing, four joiner angles, four 2x4 inch wood nailing strips, nuts, bolts, and washers. Roof curbs over 120 inches long include two additional side pieces and two splice plates. Refer to the latest revision of Modine literature 5-590 for instructions.

3. Outside dimensions must be held when installing curb.

Top surface must be level and straight to insure weathertightness. All corners must be square.

4. All dimensions are +1/8 inch.

5. Final electric and gas connections must be made after unit is installed to allow for tolerance in setting of unit on curb.

For electrical power supply allow approximately eight feet of wire, plus provisions for weathertight flexible conduit for connection to unit, as required by local codes.

6. Maintain an 12-inch minimum height from top of roof deck to top of curb.

7. Caulk butt joints after curb is assembled and installed on roof structural members and roof flashing is added.

figure 4.3 - typical curb details rigging instructions

Four 3/4-inch holes at the extended ends of the mounting channels are supplied to facilitate lifting the unit with eyebolts to be furnished by the installer. For either crane or helicopter lift of the equipment to the rooftop, connect sturdy steel cables with eye loops as illustrated in Figure 4.2. To prevent cable from marring the cabinet end tops, use spreader bars or an angle iron frame at least 6" longer and wider than the unit to spread the lifting cables above the unit. For stability in lifting and lowering, include a spreader piece between the two cable spreaders as illustrated in Figure 4.2.

figure 4.2 - typical rooftop furnace rigging

installer’s

CABLE AND

SPREADERS

Counterflashing

(By Others)

Roofing

Material

(By Others)

Insulation

(By Others)

Cant Strip

(By Others)

Roof Insulation

(By Others)

Curb Gasketing*

2 x 4 Wooden

Nailing Strip*

Curb*

2" Acoustic

Fiberglass

(By Others)

4

installer’s

EYE BOLTS

ROOF CURB

MOUNTED ON ROOF

5-572.8

Roof

Truss

6" Inverted

Channel

Both Sides

(By Others)

*Available as a factory supplied, field installed accessory.

Roof

Deck

slaB mount/duct installation

HcG/HcP

For ground level installation of a front-discharge unit prepare a level concrete slab at least four inches thick on adequate footings and a generous bed of gravel for drainage (See Figure

5.1). The slab should include threaded 5/8-inch anchor bolts spaced according to Figure 5.2. Anchor bolts should extend at least 1-1/2" above the surface of the floor to allow clearance for mounting washers, nuts and bolts (mounting washers, nuts and bolts by others). The slab should extend out at least six inches around the perimeter of the unit.

figure 5.1 - slab-mounted furnace duct installation for HBG/HBP and HcG/HcP (Horizontal discharge):

1. The blower section back and bottom and the furnace discharge are designed to accept 90° flanged ductwork. See

Figure 5.3. Provide an airtight seal between the ductwork and the unit. Seams with cracks in the ductwork should be caulked and/or taped and be of permanent type. All duct connections outside the building MUST be weathertight to prevent rain and snow from entering the ductwork.

2. Acoustic duct liners are recommended on all internal return air ducts.

figure 5.3 - duct connections

1/2"

DUCT FURNACE

90°

FLANGED

DUCTWORk

DUCTWOR k

ACCESS

PANEL

(4" MIN)

ON GRAVEL BED

figure 5.2 - slab anchor Bolt dimensions

A

B

5/8 Dia. (4)

model size

Blower type

(digit 16) a B

HBG/HBP 75

HBG/HBP 100/125

HBG/HBP 150/175

HBG/HBP 200/225

HBG/HBP 250/300

HBG/HBP 250/300

HBG/HBP 350/400

HBG/HBP 350/400

HBG/HBP 500/600

HBG/HBP 500/600

HBG/HBP 700/800

HBG/HBP 700/800

HBG/HBP 840/960

All 82.91 33.85

All 82.91 36.36

All 82.91 40.61

All 82.91 42.71

E, F, G, or H

I, J, or k

82.91

118.50

E, F, G, or H 82.91

I, J, or k

G or H

I, J, k, or L 151.62

G or H

118.50

116.03

116.03

I, J, k, or L 151.62

45.75

45.75

57.27

57.27

45.75

45.75

57.27

57.27

All 185.02 57.27

HcG/HcP 75

HcG/HcP 100/125

HcG/HcP 150/175

HcG/HcP 200/225

HcG/HcP 250/300

HcG/HcP 250/300

HcG/HcP 350/400

HcG/HcP 350/400

All 106.89 33.85

All 106.89 36.36

All 106.89 40.61

All 106.89 42.71

E, F, G, or H 106.89

I, J, or k

E, F, G, or H 106.89

I, J, or k

142.48

142.48

45.75

45.75

57.27

57.27

3. When a roof curb is used in conjunction with a factory supplied return air connector, the ductwork can be fastened to the connectors prior to the unit installation.

The connectors will accept 90° flanged ductwork. See

Figure 6.2.

4. Provide uniform air distribution over the heat exchanger.

Use turning vanes where required to obtain uniform air distribution. See Figure 6.1.

5. On model HBG/HBP, provide removable access panels on the downstream side of the unit. See Figure 5.3. 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 the heat exchanger due to a lack of sufficient air (CFM). Not required on model HCG/HCP because the cooling cabinet access door can be removed for this purpose.

5-572.8

5

duct installation/riGGinG instructions/unit installation utility connections

Utility and control connections can be made to the unit from the bottom for roof curb-mounted units or through the fixed side panels for horizontal supply and return units. Holes can be made in fixed side panels to accommodate utility connections as specified according to the unit dimensional drawings.

Sealing of holes cut in the unit casing for utility connections should be done with care to prevent air and water leaks.

unit installation

Follow site preparation instructions for applicable curb, sub-base, or slab sites before installation. Check Model

Identification Plate of unit with plans to be sure unit is properly located. (See pages 54 and 55). Also inspect damper motors and dampers for proper type (e.g., two-position, modulating, fresh air only, fresh and return air, etc.). Although units may look outwardly similar, their function, capacities, options, and accessories will often vary. Check dimensions.

If unit is to be installed on a factory-supplied curb:

1. Install roof curb using previous roof curb instructions (page 4).

2. Thoroughly clean and dry the top of the curb surface.

3. Lay a bead of weather resistant caulking on top perimeter of roof curb as illustrated in Figure 4.3.

4. Orient hoisted unit to its ductwork and set it down evenly on curb.

5. Make final unit connections to the electric power supply and remote control circuits. Connect the gas lines to the unit heating compartment in accordance with the submittal drawings and architect plans. Caulk all utility line clearance holes on the unit after connections are completed.

If unit is to be installed on a separate sub-base or slab, use steps 4 and 5.

for HdG/HdP and HPG/HPP (downturn discharge):

1. The blower section back and bottom and the downturn plenum bottom is designed to accept 90° flanged ductwork on both the supply and return air openings. Refer to the roof curb (Figure 46.1) or the unit base (Figure 45.1) dimensional drawings to determine the location of the openings.

2. Acoustic duct liners are recommended on all internal supply and return air ducts.

3. When ductwork is installed prior to unit arrival, flexible connections should be included to make connections easier and to simplify possible future service.

4. When a roof curb is used in conjunction with factory supplied discharge and/or return air connectors, the ductwork can be fastened to the connectors prior to the unit installation. The connectors will accept 90° flanged ductwork. See Figure 6.2.

figure 6.2 - discharge and/or return air connectors venting

1. Installation of venting 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 CAN/

CGA-B149.1 for natural gas units and CAN/CGA-B149.2 for propane units.

2. For HBG/HCG/HDG/HPG units, do not operate duct furnaces without the factory supplied vent cap (shipped loose) fastened securely in place. HBP/HCP/HDP/HPP units are shipped with the power exhauster discharge cover factory installed.

3. For HBG/HCG/HDG/HPG units, do not modify or obstruct the vent cap in any manner. For HBP/HCP/HDP/HPP units, do not modify or obstruct the combustion air inlet louvers or the power exhauster discharge cover.

4. Do not add any vents other than those supplied by the manufacturer.

6

5-572.8

tHis PaGe intentionally left BlanK

5-572.8

7

8

unit installation

Gas connections

WARNING

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

Purging of air from gas supply line should be performed as described in ANSI Z223.1 - latest edition “National Fuel Gas

Code”, or in Canada in CAN/CGA-B149 codes.

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 CAN/CGA-B149.1 for natural gas units and CAN/CGA-B149.2 for propane units.

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 9.1 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 8.1. Where several units are served by the same main, the total capacity, cfh and length of main must be considered. Avoid pipe sizes smaller than 1/2". Table

8.1 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. The gas piping to the unit can enter the unit from the side of the unit or from below. Install a ground joint union with brass seat and a manual shut-off valve external of the unit casing, and 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

8.1). Verify the manual shut-off valve is gas tight on an annual basis.

4. Provide a sediment trap before each unit in the line where low spots cannot be avoided. (See Figure 8.1).

5. 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.

figure 8.1 - recommended sediment trap/manual shut-off valve installation - side or Bottom Gas connection

GROUND

JOINT

➀

TO

CONTROLS

➀

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

table 8.1 - Gas Pipe capacities - natural Gas ➀ ‚

Pipe length (ft)

40

50

60

10

20

30

70

80

100

125

150

1/2"

132

92

73

63

56

50

46

43

38

34

31

3/4"

278

190

152

130

115

105

96

90

79

72

64

natural Gas

1"

520

350

285

245

215

195

180

170

150

130

120

1-1/4"

1050

730

590

500

440

400

370

350

305

275

250

1-1/2"

1600

1100

890

760

670

610

560

530

460

410

380

2"

3050

2100

1650

1450

1270

1150

1050

930

870

780

710



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.

5-572.8

installation table 9.1 - Burner orifice sizing and Gas consumption

model size

Gas type

natural j

Orifice

Qty

75

100

125

150

175

200

225

250

300

350

400

500

➂

600

➂

700

➂

800

➃

840

➃

960

➃

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

Cfh

Orifice Drill size

1

2

2

3

3

3

3

4

4

6

6

4

4

6

6

6

6

➀

Based on natural gas properties of 1040 Btu/Cu. Ft. and specific gravity of 0.60.

➁

Based on propane gas properties of 2500 Btu/Cu. Ft. and specific gravity of 1.53.

➂

Model sizes 500-800 contain 2 furnaces. Values shown are per furnace.

➃

Model sizes 840-960 contain 3 furnaces. Values shown are per furnace.

288.7

20

336.5

27

384.6

23

336.5

27

384.6

23

288.7

20

336.5

27

384.6

23

240.4

25

168.3

27

192.3

23

216.3

20

240.4

25

72.1

20

96.1

30

120.2

25

144.2

30

Propane k

120.0

39

140.0

43

160.0

42

140.0

43

160.0

42

120.0

39

140.0

43

160.0

42

100.0

42

70.0

43

80.0

42

90.0

39

100.0

42

50.0

42

60.0

45

30.0

39

40.0

45

5-572.8

9

installation considerations for elevation

The standard ratings for Models HFG/HFP (duct furnace portion) are certified for elevations up to 2000 feet above sea level.

Operation at elevations above 2,000 feet requires ratings be reduced 4% for each 1000 feet above sea level per ANSI

Z223.1. The exception is for units in Canada, CSA requires that ratings be reduced 10% for elevations between 2,001 and 4500 feet. The following instructions are for units that will be installed over 2,000 feet elevation. If this does not apply, you may skip ahead to the Electrical Connections section on page 11.

manifold Pressure adjustment

The unit manifold pressure is factory set for operation at elevations up to 2000 feet as follows:

• For natural Gas units, 3.5" W.C. based on a gas heating value of 1,050 BTU/ft3.

• For Propane Gas units, 10.0" W.C. based on a gas heating value of 2,500 BTU/ft3.

For higher elevations, some utility companies may derate the

BTU content (heating value) of the gas provided at altitude to a lower value 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. Table 10.1 shows the standard derated heating values of natural and propane gases at various elevations.

table 10.1

Gas Heating values at altitude (Btu/ft3) ➀ ➁ ➂ ➄

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 natural Gas

1,050

929 ➂

892 ➂

874 ➂

856

822

789

757

727

698

Propane

2,500

2212 ➃

2123 ➃

2080 ➃

2,038

1,957

1,879

1,803

1,731

1,662

➀

Values shown are for 3.5" W.C. manifold pressure for Natural Gas and 10.0"

W.C. for Propane Gas. If the local utility supplies gas with a different Btu/ft3 value, use Equation 10.1 to calculate the required manifold pressure.

➁

Gas heating values shown are derated 4% per 1,000' of elevation (10% between 2,000' and 4,500' elevation in Canada) in accordance with ANSI

Z223.1 and CSA-B149, respectively.

➂

945 Btu/ft3 for Canada

➃

2,250 Btu/ft3 for Canada

➄

When installed at altitudes above 2,000', a pressure switch may need to be changed. Refer to Tables 10.2 and 10.3 to determine if a switch change is required.

If the utility is supplying gas with heating values same as shown in Table 10.1, the manifold pressure should remain set to 3.5"

W.C. for natural gas and 10.0" W.C. for propane gas and you may proceed to the section on this page titled “Selection of the

Proper High Altitude kit”.

If the utility is supplying gas with heating values different than shown in Table 10.1, use Equation 10.1 to determine the appropriate manifold pressure for the elevation and gas heating value being supplied. Note what that value is, as it will be needed later for Start-Up. Proceed to the section on this page titled “Selection of the Proper High Altitude kit”.

equation 10.1 - manifold Pressure for Gas Heating values different than shown in table 10.1

Where:

BTUTBL = BTU/ft3 content of gas from Table 10.1

utility company

(use 3.5" W.C. for natural gas and

10.0" W.C. for propane)

note: For units equipped with two-stage or modulating gas controls, only the high fire manifold pressure needs to be adjusted. No adjustments to the low fire manifold pressure are necessary on these units.

selection of the Proper High altitude Kit

All units installed at elevations greater than 2000 feet above sea level require a kit, in addition to potential manifold pressure adjustment outlined in the previous step. To determine the proper kit to use, refer to Table 10.2.

Table 10.3 shows the contents of the kit. For more information, refer to the latest revision of Modine Bulletin 75-530.

table 10.2 - High altitude Kit selection table ➀ ➁ ➂

All All

item code elevation above sea level (ft)

2,001-5,500 5,501-6,500 6,501-7,500

67248 67248 67248

➀

Applies to both installations in the U.S. and Canada.

➁

Applies to both natural and propane gas.

➁

Sizes 75-400 require a kit qty. of 1, sizes 500-800 require a kit qty of 2, sizes 840-960 require a kit qty of 3.

table 10.3 - High altitude Kit contents

item code

67248

High altitude conversion label

Yes

Kit contents

Pressure switch

No

installation instructions

Yes

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 manifold pressure adjustment and high altitude kit listed above. For the Selection and Installation Instructions for propane conversion kits, please see the latest revision of Modine Bulletin 75-511.

10

5-572.8

unit installation 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.

CAUTION

1. 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 job specific wiring diagram are provided with each unit, one located in the duct furnace electrical junction box and one in the electrical section of the unit.

Refer to this diagram for all wiring connections.

3. The wire gauge must be sized according to the National

Electric Code or CSA code based on the power supply voltage, amp draw, and length of run. Refer to Table 11.1 for maximum wire lengths and the number of wires that can be wired to each low voltage terminal block.

table 11.1 - low voltage (24v) maximum Wire length (ft)

NEC-1996, Table 310-17, Copper wire with 90°C insulation, conductors in free space (not in conduit), 86°F ambient. For other wire types, refer to the NEC of CSA code.

digit

15 transformer size (va)

3

4

1

2

40

75

150

250 maximum # of Wires per terminal

Wire Gauge

18 Ga 16 Ga 14 Ga 12 Ga 10 Ga

162 216 315 360 495

86

43

26

115

58

35

168

84

50

192

96

58

264

132

79

5 4 3 2 1

4. Make sure all multi-voltage components (motors, transformers, etc.) are wired in accordance with the power supply voltage.

5. The power supply to the unit must be protected with a fused or circuit breaker disconnect switch. Refer to the Factory

Mounted Option Locations (Figure 19.1) for the factory mounted disconnect switch location and then review the unit to determine if a factory installed dead front disconnect switch was provided. Accessory field installed disconnect switches should be mounted where shown in Figure 11.2.

For fusible disconnect switches, refer to the Model

Identification plate for the fuse size and type.

6. 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.

7. External electrical service connections that must be installed include:

a. Supply power (120, 208, 240, 480, or 600 volts).

b. Thermostats, remote monitoring panels, building pressure sensors, time clocks, or any other accessory control devices that may be supplied (24 volts).

8. All outdoor electrical connections must be weatherized to prevent moisture from entering the electrical compartment.

9. Refer to the unit dimensional drawings on pages 41 through

44 for the location of the drill locator dimples in the side and bottom of the unit for field drilling the hole for the electrical conduit entry.

10. All supply power electrical connections are made in the electrical section of the unit. The low voltage (thermostat and accessory control devices) can be wired to either the electrical section or the duct furnace electrical junction box.

Refer to the wiring diagram for the terminal location of all low voltage wiring.

figure 11.2 - recommended accessory field installed disconnect switch mounting locations evaporative cooler installation

For units equipped with an evaporative cooler (Digit 22 =

B or D), refer to Installation and Service Manual - Evaporative

Coolers (Literature 5-588).

5-572.8

11

cooling coil units

Models with a cooling section can be provided with either a factory installed direct expansion (DX) evaporator, a chilled fluid (for use with water, ethylene glycol, or propylene glycol fluids) coil, or the coil can be field supplied and installed by others. For units equipped with a factory installed cooling coil

(Digit 23 = 1), refer to the packing slip to determine the coil type provided.

The cooling section includes a full coverage, 3-way sloping

409 stainless steel drain pan to remove condensate from coil headers, thermal expansion valves, and refrigerant piping.

Insulation is standard on outdoor units and optional on indoor units. The cabinet includes two doors, a removable upper door for service access to the coil once the plumbing has been installed and a lower door which includes a factory supplied 1" stubbed drain connection to the exterior of the cabinet. Field connections for coil inlet and outlet piping can be made through the cabinet corner post or back of the unit. The cooling section duct transition includes 1-1/2" flanges for fastening the sides of the coil. The bottom duct transition is angled to remove any condensation that may be entrained in the supply air stream.

For field supplied coils, do not exceed the maximum coil dimensions listed in Literature 82-135. The dimensions listed are for the maximum coil dimensions. If the coil supplied is smaller than the listed dimensions, field supplied blank off plates are required to prevent air bypass around the coil. The coil is supported by two 14 gauge support rails which contain mounting provisions for fastening 4", 5", 6", 7.5", 8.5", and 10" deep coils.

figure 12.1 - cooling section direct expansion (dX) Piping

The refrigerant lines should be insulated to prevent warming or cooling of the refrigerant. If the suction line is allowed to be cooled, liquid will condense in the line and can severely damage the compressor. If the liquid line is warmed, the refrigerant can "flash" into a gas. This will cause erratic operation of the expansion device and impair the heat transfer ability of the cooling coil. Long runs of piping need to be periodically supported to prevent excess vibration that can damage the piping and joints. It is recommended to provide dampening supports at intervals of length equivalent to 15 tube diameters.

figure 12.2 - General dX Piping

Liquid Line

Suction Header

Distributor

Equalizer Line

Nozzle

Suction Line

Remote Sensing Bulb

Straps

Coil

Suction Connection

Optional double wall construction

Right or left hand coil header access to match gas controls

DX single circuit (shown) and dual circuit coils available

Optional Factory

Installed

DX or Chilled

Water coil.

Fin spacings of 6,8,10,12 or 14 fins per inch

Adjustable mounting bracket for 2,3,4 and 6 row coils

Full coverage

3-way sloping

409 stainless steel drain pan

1” stubbed drain connection

condensate drain Pan trap

The condensate drain line needs to include a P-trap immediately downstream of the connection to the unit. This trap should extend at least two inches below the connection to prevent air pressure from forcing air into the unit. The trap should be primed with a water/glycol solution to prevent freezing.

12

5-572.8

1. Inspect the refrigerant distributor and verify that the nozzle

is in place.

2. All field brazing and welding should be performed using

high quality materials and an inert gas purge (such as

nitrogen) to reduce oxidation of the internal surface of the coil.

3. For DX coils, the use of filter-dryers in the system piping is recommended along with a sight glass that has a moisture indicator.

4. Connect the suction line and suction connection.

5. Install the expansion valve (By Others). Follow the

expansion valve manufacturer's recommendations for

installation to avoid damaging the valve.

6. Connect the liquid line to the expansion valve. Pressurize

the coil, expansion valve assembly and suction connection

to 100 psig with dry nitrogen or other suitable gas. The coil

should be left pressurized for a minimum of 10 minutes.

7. If the coil holds pressure, the installation can be considered

leak free. If the pressure drops by 5 psi or less,

repressurize the coil and wait another 10 minutes. If the

pressure drops again, there are more than likely one or

more small leaks, which should be located and repaired.

Pressure losses greater than 5 psi would indicate a larger

leak, which should be isolated and repaired. Be sure to

check valves and fittings as potential sites for leakage or

bleed.

8. Use a vacuum pump to evacuate the coil and any

interconnecting piping that has been open to atmosphere.

Measure the vacuum in the piping using a micron gauge

located as far from the pump as possible (the vacuum at

the pump will be greater than the rest of the system).

Evacuate the coil to 500 microns or less then close the

valve between the pump and the system. If the vacuum

holds to 500 microns or less for one minute, the system

is ready to be charged or refrigerant pumped down in

another portion of the system can be opened to the coil.

A steady rise in microns would indicate that moisture is still

present and that the coil should be further vacuumed until

the moisture has been removed.

unit installation

9. Failure to obtain a high vacuum is indicative of a great

deal of moisture or a small leak. Break the vacuum with

a charge of dry nitrogen or other suitable gas and recheck

for leaks (soapy water works well). If no leaks are found,

continue vacuuming the coil until the desired vacuum is

reached.

10. All field piping must be self-supporting.

chilled fluid Piping

To prevent noise and coil damage from water hammer, an air vent is necessary to bleed off the accumulated air in the system. The vent should be located on the top of the inlet manifold where the air collects. This vent should be opened twice a year.

The outlet manifold should have a drain installed on the bottom to allow for periodic flushing of the system to remove sediments and corrosion products from the cooling coil. This drain should be opened to allow some fluid to drain twice a year. Check coloration and viscosity of the effluent for indications of corrosion in the system. The lines between the unit and the structure should be insulated to prevent freezing of the water.

1. Once installed, the coil should be pressurized to 100 psig

with dry nitrogen or other suitable gas. The coil should be

left pressurized for a minimum of 10 minutes. If the coil

holds the pressure, the hook-up can be considered leak

free. If the pressure drops by 5 psig or less re-pressurize

the coil and wait another 10 minutes. If the pressure drops

again, there is more than likely one or more small leaks

which should be located and repaired. Pressure losses

greater than 5 psig would indicate a larger leak that should

be isolated and repaired.

2. All field brazing and welding should be performed using

high quality materials and an inert gas purge (such as

nitrogen) to reduce oxidation of the internal surface of

the coil.

3. All field piping must be self supporting. System piping

should be flexible enough to allow for thermal expansion

and contraction of the coil.

4. Fill the coil with water with all air vents open so that air is eliminated from within the coil circuitry and headers. Verify that all vents and drains are not obstructed and do discharge a stream of water.

5. Close all vents and perform a hydrostatic leak test of all brazed, threaded or flanged joints, valves and interconnecting piping. Recheck the coil level and correct if necessary. When the setup is found to be leak free, discharge and discard initial water charge. It is important that all grease, oil, flux and sealing compounds present from the installation be removed.

figure 13.1 - General chilled fluid Piping

Air Flo w

Air Vent

Gate Valve

Tee

Dirt Leg

Cap

Ret urn

Vent Plug

Union

Drain Plug

table 13.1 - cooling coil Performance limits

cooling type dX chilled

Water model size

75 min cfm single circuit dual circuit max

cfm j

area

(ft2) max

cfm j

area

(ft2)

688

➂

1,891 3.44

1,707 3.10

100

802

➃

125

926

150

1,111

175

1,296

200

1,481

225

1,667

250

1,852

300

2,222

350

2,593

400

2,963

75

100

125

609

741

926

150

1,111

175

1,296

200

1,481

225

1,667

250

1,852

300

2,222

350

2,593

400

2,963

2,206

2,521

3,352

3,724

5,214

1,676

2,011

2,372

3,214

3,592

5,073

4.01

4.58

6.09

6.77

9.48

3.05

3.66

4.31

5.84

6.53

9.22

2,048

2,416

3,165

3,538

4,996 n/a n/a n/a n/a n/a n/a

3.72

4.39

5.76

6.43

9.08

n/a n/a n/a n/a n/a n/a

➀

Based on 550 feet per minute (FPM) coil face velocity.

➁

Based on 95°F/75°F Entering Dry Bulb/Wet Bulb.

➂

Model Size 75 minimum CFM for DX Dual Circuit is 621.

➃

Model Size 100 minimum CFM for DX Dual Circuit is 745.

max cooling

(tons) k

9.4

11.4

13.4

18.1

20.2

27.3

10.6

12.6

14.8

19.3

21.3

29.3

5-572.8

13

start-uP Procedure start-up Procedure

IMPORTANT

1. To prevent premature heat exchanger failure, observe heat exchanger tubes by looking at the heat exchanger through the field installed access openings in connecting ductwork in blower package units or the unit access doors in cooling package units. If the bottom of the tubes become red while blower and duct furnace are in operation, check to be sure the blower has been set to the proper rpm for the application. Refer to page 16 for

Blower Adjustments.

2. Start-up and adjustment procedures should be performed by a qualified service agency.

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 blower exterior panels and open the electrical compartment door.

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.

4. Check to insure that the venting system is installed and free from obstructions.

5. Check to see that there are no obstructions to the intake and discharge of the unit.

6. Check the belt tension and sheave alignment. Refer to

Blower Adjustments for proper belt tension.

7. Check bearings for proper lubrication. For units provided with pillow block bearings (See Model Nomenclature), refer to Lubrication Recommendations for lubrication requirements.

8. Check to make sure that all filters are in place and that they are installed properly according to direction of air flow.

9. Perform a visual inspection of the unit to make sure no damage has occurred during installation.

10. Turn on power to the unit at the disconnect switch. Check to insure that the voltage between duct furnace electrical box terminals 1 and 2 is 24V.

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. Check to insure that none of the Control Options have tripped.

12. For units with a return air damper, the return air damper linkage needs to be adjusted. Refer to Damper Linkage

Adjustment.

13. Check to make sure that the damper opens properly without binding.

14. Check the blower wheel for proper direction of rotation when compared to the air flow direction arrow on the

blower housing. Blower wheel rotation, not air movement, must be checked as some air will be delivered through the duct furnace with the blower wheel running backwards.

15. Check the blower speed (rpm). Refer to Blower

Adjustments for modification.

16. Check the motor speed (rpm).

17. Check the motor voltage. On three phase systems, check to make sure all legs are in balance.

18. Check the motor amp draw to make sure it does not exceed the motor nameplate rating. On three phase systems, check all legs to insure system is balanced.

19. Recheck the gas supply pressure at the field installed manual shut-off valve. The minumum 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.

20. Open the field installed manual gas shut-off valve.

21. Open the manual main gas valve on the combination gas valve. Call for heat with the thermostat and allow the pilot to light for intermitent pilot ignition. If the pilot does not light, purge the pilot line. If air purging is required, disconnect the pilot line at outlet of pilot valve. In no case should line be purged into heat exchanger. Check the pilot flame length (See Pilot Flame Adjustment).

22. Once the pilot has been established, check to make sure that the main gas valve opens. Check the manifold gas pressure (See Main Gas Adjustment) and flame length

(See Air Shutter Adjustment) while the supply fan blower is operating.

23. Check to insure that gas controls sequence properly (See

Control Operating Sequence). Verify if the unit has any additional control devices and set according to the instructions in the Control Options.

24. Once proper operation of the unit has been verified, remove any jumper wires that were required for testing.

25. Close the electrical compartment door.

26. Replace all exterior panels.

Refer to page 56 for the Start-up Checklist.

Pilot Burner adjustment

The pilot burner is orificed to burn properly with an inlet pressure of 6-7" W.C. on natural gas and 11-14" W.C. on propane gas, but final adjustment must be made after installation. If the pilot flame is too long or large, it is possible that it may cause soot and/or impinge on the heat exchanger causing failure. If the pilot flame is shorter than shown, it may cause poor ignition and result in the controls not opening the combination gas control. A short flame can be caused by a dirty pilot orifice. Pilot flame condition should be observed periodically to assure trouble-free operation.

to adjust the Pilot flame

1. Create a call for heat from the thermostat.

2. Remove the cap from the pilot adjustment screw. For location, see the combination gas control literature supplied with unit.

3. Adjust the pilot length by turning the screw in or out to achieve a soft steady flame 3/4" to 1" long and encompassing 3/8"-1/2" of the tip of the thermocouple or flame sensing rod (See Figure 14.1).

4. Replace the cap from the pilot adjustment screw.

figure 14.1 - correct Pilot flame

3/4" to 1"

14

5-572.8

start-uP Procedure 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 duct furnace in accordance with the input rating on the serial plate. Actual input should be checked and necessary adjustments made after the duct furnace 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 tee in the manifold or at the pressure tap of the gas valve for standard gas string. (See Figure 15.1).

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 in the pipe tee or 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. Determine the correct high fire manifold pressure. For natural gas 3.5” W.C., for propane gas 10” W.C. 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. If the unit has Electronic Modulation gas controls

(determine from the Model Identification Digit 12), the low fire gas pressure needs to be adjusted. Using Figure 15.2 for item number locations, this is accomplished as follows: a. Disconnect power.

b. Remove all wires from Maxitrol Amplifier terminal “3” or

duct furnace terminal “43” (if available).

c. Turn on power at the disconnect switch.

d. Remove the maximum adjustment screw (4), spring

(5), and plunger (8). A small magnet is useful for this

purpose. CAUTION - The plunger is a precision part.

Handle carefully to avoid marring or picking up grease

and dirt. Do not lubricate.

e. Using minimum adjusting screw (9), adjust low fire

manifold pressure to 0.56" W.C. for natural gas and

1.6" W.C. for propane gas.

f. Replace plunger and spring retainer, spring, and

maximum adjusting screw in proper order.

g. Using maximum adjustment screw (4), adjust high fire

manifold pressure to 3.5" W.C. for natural gas and 10"

W.C. for propane gas.

h. Disconnect power.

i. Replace cover plate (2) and re-install all wires from

Maxitrol amplifier terminal “3” or duct furnace terminal “43”.

7. After adjustment, move the field installed manual shut-off valve to the “OFF” position and replace the 1/8" pipe plug.

8. 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.

figure 15.1 - checking manifold Pressure with “u” tube manometer

MANIFOLD TEE

figure 15.2 - maxitrol modulating valve adjustments

1. TOP HOUSING

2. COVER PLATE

3. SEAL GASkET

4. MAXIMUM ADJUSTMENT SCREW

5. MAXIMUM ADJUSTMENT SPRING

6. SOLENOID

7. MINIMUM ADJUSTMENT SPRING

8. PLUNGER

9. MINIMUM ADJUSTMENT SCREW

10. MINIMUM ADJUSTMENT SCREW STOP

air shutter adjustment

Proper operation provides a soft blue flame with a well-defined inner core. A lack of primary air will reveal soft yellow-tipped flames. Excess primary air produces short, well-defined flames with a tendency to lift off the burner ports. For both natural and propane gas, the air shutters can be adjusted to control the burner flame height. The air shutters can be accessed by reaching behind the manifold tee in Figure 15.1. The larger models may require the removal of the manifold (see Manifold

Assembly Removal).

Adjusting the primary combustion air is achieved by resetting the primary air shutters (See Figure 51.2). Prior to flame adjustment, operate duct furnace for about fifteen minutes. The main burner flame can be viewed after loosening and pushing aside the gas designation disc on the side of the burner box.

1. To increase primary air, loosen the air shutter set screws and move the air shutters closer to the manifold until the yellow tipped flames disappear and a clean blue flame with a well defined inner cone appears.

2. To decrease primary air, move the air shutters away from the manifolds until flames no longer lift from burner ports, but being careful not to cause yellow tipping.

3. Re-tighten set screws after adjustment.

5-572.8

15

16

start-uP Procedure

Blower adjustments

If blower fan speed changes are required, adjust motor sheave as follows:

1. Refer to page 32 to determine correct blower speed according to job requirements, then proceed with steps 2 through 8.

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

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

figure 16.1 - motor sheave adjustment

Toward Motor

Set Screw

Adjustable Half of Sheave

4. Turn outer side of motor sheave clockwise until motor sheave is fully closed.

5. From fully closed position, turn outer side of motor sheave counterclockwise until the proper number of turns open are achieved.

6. Retighten motor sheave set screw, replace belt and retighten motor base. Motor base should be shifted for proper belt tension which is 3/4" deflection with about 5 lbs. of force.

figure 16.2 - Belt tension adjustment lubrication recommendations

The blower can be provided with either spider or pillow block bearings. Spider bearings are permanently lubricated and do not require lubrication. Pillow block bearings are shipped greased from the factory but will require lubrication. The bearings should be checked and lubricated before each heating season but a more frequent lubrication schedule may be required based on the environment in which the unit is installed, and the frequency of the equipment operation. Shell Alvania #2 lubricant is recommended.

damper linkage adjustment

If the unit is provided with a return air damper, to prevent shipping damage, the return air damper linkage is disconnected and the damper closed. Before operating the unit, the fresh and return air dampers must be connected. This is accomplished by the following:

1. The damper actuator should be de-energized and the fresh air damper in a fully closed position.

2. Open the return air damper in a fully open position.

3. Slide the connecting rod into the ball joint on the blade arm with the return air damper fully open. See Figure 16.3.

4. Tighten the 5/16" hex head screw on the ball joint.

figure 16.3 - damper linkage adjustment

BALL JOINT

CONNECTING ROD

BLADE ARM

➪

3/4" deflection with 5 lbs. of force

7. Recheck blower rpm after adjustment.

note: Do not fire unit until blower adjustment has been made or unit may cycle on high limit control.

8. Check motor amps. Do not exceed nameplate amps shown on motor nameplate.

cooling coil operation

1. Proper air distribution is vital to coil performance. Air flow anywhere on the coil face should not vary by more than 20%.

2. Air velocities should be maintained between 200 and 550 feet per minute.

3. For chilled fluid coils, fluid velocities should be maintained within the recommended values of 1 to 8 feet per second

(fps) for Water and 1 to 6 fps for Glycol solutions.

5-572.8

start- uP Procedure control operating sequence

IMPORTANT

To prevent premature heat exchanger failure, with all control systems, a blower starting mechanism must be provided so that the blower is running or energized within 45 seconds of the gas control operation.

Indoor duct furnaces are supplied with intermittent pilot systems with continuous retry, which both the main burner and pilot burner are turned off 100% when the thermostat is satisfied.

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.

note: Gas Control Options (see page 19) could change the listed sequence of operation based on their function.

The descriptions given are for the basic duct furnace.

single furnace controls staged control (digit 12=1 or 2):

These units utilize a single- or two-stage combination gas valve, an ignition control, and a low voltage thermostat.

electronic modulating control (digit 12=4, 7, or 8):

These units utilize a single-stage combination gas valve, an electronic modulating gas valve, a modulating amplifier, an ignition control, and one of the following:

• Modulating room thermostat

• Modulating duct thermostat with remote temperature set point adjuster

• Building Management system (BMs) signal by others (an inverted signal where 0 VDC or 4 mA is high fire and 10 VDC or 20 mA is low fire).

The control operating sequence for all units is as follows:

1. The thermostat calls for heat. For BMS controlled units, the

BMS closes a heat enable contact at the unit.

2. model HBP/HcP/HdP/HPP only - The power exhauster relay is energized starting the power exhauster motor. Once the motor has reached full speed, the differential pressure switch closes. The power exhauster pre-purge time delay relay then closes after 20 to 40 seconds and energizes the gas control circuit.

3. The pilot valve opens and the spark igniter sparks in an attempt to light the pilot. (If the unit was not provided with a time delay relay, the blower starts).

4. Once the pilot is lit, the flame sensor proves the pilot and stops the spark igniter from sparking.

5. The main gas valve is opened and the main burner is controlled as follows:

a. single-stage units: The main burner is lit to 100% full fire.

b. two-stage units: The main burner is lit to 50% fire. If the temperature at the thermostat continues to fall, the thermostat will call for high stage heat and the main burner is lit to 100% full fire.

c. modulating thermostat (room or duct): The main gas valve is opened 100% and the burner firing rate is modulated between 40% and 100% full fire. A resistance signal (8000 to 12000 ohms) in the thermostat is converted

5-572.8

by the modulating amplifier to an inverted DC voltage

(0VDC for high fire to 12 VDC for low fire). The output voltage is applied to the modulating gas valve to control the gas flow to the main burner. The modulating valve is modulated open or closed based on the voltage from the amplifier (less gas flow required = higher voltage, more gas flow required = lower voltage).

note: When modulating duct sensing is utilized, a room override thermostat can be added. When the room override calls for heat, the burner modulates to full fire operation until the room override is satisfied. The unit then reverts back to duct sensing control. When equipped with both, either the duct sensor or the room override thermostat can call for heat.

d. Bms signal: The main gas valve is opened 100% and the burner firing rate is modulated between 40% and

100% full fire. A BMS 0-10VDC or 4-20mA signal (inverted, such that 0 VDC or 4 mA is high fire and 10 VDC or 20 mA is low fire) is converted by the signal conditioner/ modulating amplifier into an inverted DC voltage (0VDC for high fire to 12 VDC for low fire). The output voltage is applied to the modulating gas valve to control the gas flow to the main burner. The signal conditioner can accept a 0-10 VDC signal when all the dip switches are in the “OFF” position and 4-20 mA signal when all the dip switches are in the “ON” position. The modulating valve is modulated open or closed based on the voltage from the amplifier (less gas flow required = higher voltage, more gas flow required = lower voltage), which correlates to the control signal from the BMS.

note: For further information regarding the operation of any of the electronic modulating system options above, consult the literature provided with the unit.

6. If the unit was provided with a time delay relay, the blower starts after 30 to 45 seconds.

7. The unit continues to operate until the thermostat is satisfied,

Once satisfied:

a. single-stage units: Both the main and pilot valves close

100%.

b. two-stage units: Once the high stage of the thermostat is satisfied, the main valve closes to 50% fire. The unit continues to operate until the low stage thermostat is satisfied, at which time both the main and pilot valves close 100%.

c. electronic modulation units: The unit continues to operate in this manner until the thermostat is satisfied or the BMS heat enable contact opens. Power is then cut to both the main and pilot valves, closing them 100% and stopping gas flow to the main and pilot burners.

8. If the unit was not provided with a time delay relay, the blower stops immediately. If the unit was provided with a time delay relay, the blower stops after 30 to 45 seconds.

17

start-uP Procedure multiple furnace controls staged control (digit 12=1):

For control of multiple staged units, each furnace would be individually controlled. Refer to the section for Single Furnace

Controls, Staged Control (Digit 12=1 or 2).

electronic modulating control (digit 12=4):

These units are the same as Electronic Modulating Gas

Controls – Single Furnace (Digit 12=4) except the Master unit features a modulating amplifier capable of driving multiple modulating gas valves for systems with a Master and up to two

Slave units. Slave units do not have a modulating amplifier.

The units would be controlled by one of the following:

• Modulating room thermostat

• Modulating duct thermostat with remote temperature set point adjuster

The sequence of operation for Electronic Modulating Gas

Controls - Master/Slave is the same as Electronic Modulating

Gas Controls - Single Furnace. The modulating amplifier sends an equal voltage signal to all of the modulating gas valves so that they modulate at the same percentage, between 40% and

100% full fire.

electronic modulating control (digit 12=7, or 8):

For control of multiple electronic modulation units for BMS control, each furnace would be individually controlled. Refer to the section for Single Furnace Controls, Electronic Modulation

Control (Digit 12=7 or 8).

variable air movement applications

Units may be supplied with variable frequency drives for applications where variable air volume is required. The minimum air flow may be varied between 30 and 100% of the full speed air flow depending on the controls selection of the unit. Due to the extra restrictions of the controller all selections must be performed with the AccuSpec configuration software.

Within AccuSpec, three variable frequency drive speed control changeover options are available:

1. Two speed which may be controlled by a manual high/low switch which may be factory mounted on the control panel or shipped loose for field installation or by exhaust fan interlocks.

2. Floating building pressure sensing which utilizes a photohelic pressure controller to adjust the building pressure by varying the amount of makeup air supplied to the the space.

3. Building management control which allows for an external signal of 0-10VDC of 4-20mA to adjust the unit airflow.

The allowable minimum CFM of the system can be 66% of the minimum listed CFM in Table 27.1 if the unit is applied as follows:

1. The unit is provided with 2-stage or electronic modulating gas controls.

2. The unit is provided with a discharge air thermostat.

3. The system does not include a room thermostat.

The discharge air thermostat will prevent the unit from firing above the allowable 100°F rise when the unit is at or above the minimum CFM by monitoring the discharge air and going to low fire. A room thermostat, because it is located remote from the unit, could cause the unit to over-fire.

18

5-572.8

oPtions - factory installed figure 19.1 - factory mounted option locations

1. Discharge Thermostat

2. Low Gas Pressure Switch

3. High Gas Pressure Switch

4. Power Exhauster

5. Timed Freeze Protection

6. Ignition Controller

7. Combustion Air/Exhaust Cap

8. Control Relay

9. Time Delay Relay

10. Furnace Low Voltage Terminal Strip

11. Power Exhauster Relay

12. Furnace Supply Power Terminal Strip

13. Control Step Down Transformer

14. Control Relay

15. Blower Low Voltage Terminal Strip

16. Dead Front Disconnect Switch

17. Step Down Transformer Fuses

18. Step Down Transformer

19. Factory Installed Minimum Positioner

20. Extended Grease Line Zerk Fittings

21. Extended Grease Lines

22. Return Air Fire Stat

23. Blower Housing

24. Pillow Block Bearings

25. Blower Motor

26. Filters

27. Fresh Air Damper

28. Enthalpy Sensor

29. Rainhood and Birdscreen

30. Direct Drive Damper Actuator

31. Enthalpy Controller

32. Damper to Damper Linkage

33. Return Air Damper

34. Proportional Temp Controller Sensor

35. Motor and Blower Vibration Isolation

36. Blower Support

37. Convenience Outlet

38. Blower Door Switch

39. Dirty Filter Switch

40. Motor Starter/VFD Control

41. Mild Temperature Thermostat

42. Proportional Temp Controller

43. Warm-Up Stat

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) discharge thermostat – (oPt) (not shown)

The discharge thermostat is field installed in the discharge air stream of the unit. For additional information, refer to the thermostat vendor literature provided in the literature packet with the unit. Model Sizes 500-960 contain multiple furnaces so multiple thermostats/sensors may be included.

The thermostat(s) provided can be one of the following: a) Two-stage Capillary Type Thermostat – The thermostat includes a thermostat body and capilary to be field installed in duct work. The thermostat body contains the discharge air set point adjuster that must be field set.

44. Blower Supply Power Terminal Strip

45. Service Switches

46. Electronic Modulating Amplifier

47. Electronic Modulating Gas Valve

48. Air Flow Proving Switch

49. High Limit Switch

50. Supply Air Fire Stat

51. Main Gas Valve

52. Burner Box

53. Direct Drive Damper Actuator

54. Discharge Damper

figure 19.2 - two-stage capillary type thermostat

Downstream

Ductwork

(by others)

Setpoint

Adjuster

Right

Left

R

R

B

B

W

W

Capillary

Thermostat body

(Shown with cover removed)

5-572.8

19

oPtions

b) Two-stage Electronic Type Thermostat - Includes a field installed discharge air sensor. The thermostat body is field installed remotely and includes the discharge air set point adjuster that must be field set. Refer to Literature

5-577 latest revision.

figure 20.1 - two-stage electronic type thermostat sensor figure 20.3 - low or High Gas Pressure switch

Note: Second stage

S350 module not shown.

c)

Electronic Modulating Discharge Air Thermostat –

Includes a field installed mixing tube and discharge air sensor field installed in duct work. The set point adjuster is field installed remotely and must be field set. Refer to

Literature 5-578 latest revision.

figure 20.2 - electronic modulating discharge air thermostat

conditions are returned to the allowable range of the pressure switch. The pressure switch range is 2" to 16" W.C. and should be set to insure that the maximum manifold gas pressure is not exceeded (3.5" W.C. for natural gas, 10" W.C. for propane gas).

(4) Power exhauster – (std on HBP/HcP/HdP/HPP units)

The power exhauster is factory installed in the duct furnace section. On a call for heat, the power exhauster creates a combustion draft through the duct furnace prior to the pilot being energized. The draft is proven through the power exhauster motor centrifugal switch that closes when the motor reaches full speed. The unit door includes a factory installed power exhauster discharge cover and inlet combustion louvers. For information about venting, refer to the Installation – Venting section.

(5) timed freeze Protection – (oPt)

The timed freeze protection system is factory installed in the duct furnace electrical junction box with the sensor (30°-75°F adjustable) factory installed in the discharge air stream. On initial start-up, the timed delay in the system allows the unit to go through the normal ignition sequence. The timed delay is a manual reset switch and adjustable for 1-10 minutes. In the event that the unit fails to fire after this period, the discharge air sensor will sense the cold air and will shut down the entire unit.

figure 20.4 - timed freeze Protection module

(2) low Gas Pressure switch – (oPt)

The low gas pressure switch is factory installed in the duct furnace above the gas train. The switch monitors the gas pressure upstream of all the gas controls and shuts off the electric supply to the ignition controller and combination gas valve if low gas pressure is experienced. This will shut off all gas flow to the burner. The switch has an automatic reset so that if the gas pressure is interrupted and then is returned, the switch will automatically allow the unit to operate when gas conditions are returned to the allowable range of the pressure switch. The pressure switch range is 2" to 14" W.C. and should be set to insure that the minimum inlet gas pressure is available

(6" W.C. for natural gas, 11" W.C. for propane gas).

(3) High Gas Pressure switch – (oPt)

The high gas pressure switch is factory installed in the duct furnace above the gas train. The switch monitors the gas pressure downstream of all the gas controls and shuts off the electric supply to the ignition controller and combination gas valve if high gas pressure is experienced right before the manifold. This will shut off all gas flow to the burner. The switch has a manual reset so that if the gas pressure is too high, a service person must check the unit to make sure that none of the gas controls have been damaged by the high gas pressure and then reset the switch to allow the unit to operate when gas

20

(6) ignition controller – (std)

The ignition controller is factory installed in the duct furnace electrical junction box with the spark ignitor 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 approx imately 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.

5-572.8

oPtions

(7) combustion air/exhaust cap – (std on HBG/HcG/HdG/

HPG units)

The combustion air/exhaust cap is shipped loose in a separate carton for field installation. For information about venting, refer to the Installation – Venting section. For information about installation of the cap, refer to Literature 5-573 – Vent Cap

Installation & Submittal Data which is provided with the cap.

(8) control relay – (oPt)

The control relay is factory installed in the duct furnace electrical junction box. The relay has a 24V coil with doublepole, double throw (DPDT) contacts. Refer to the unit wiring diagram for the function of the switching operation of the relay.

The two normally open and two normally closed contacts are rated for a maximum of 30 amps @ 115V/1Ph.

(9) time delay relay – (std)

The time delay relay is factory installed in the duct furnace electrical junction box. The time delay relay allows the gas controls to operate for approximately 30 seconds before the blower starts.

This allows the heat exchanger a warm up period so that the initial delivered air coming out of the ductwork is not cool. The time delay relay also keeps the motor running for approximately 30 seconds after the call for heat has been satis fied to remove the residual heat from the heat exchanger. For single phase units below 1-1/2

Hp, the time delay relay controls the motor directly. For single phase units 1-1/2 Hp and greater and all three phase units, the time delay relay controls the motor starter.

(10) furnace low voltage terminal strip – (std)

The furnace low voltage terminal strip is located in the duct furnace electrical junction box. The terminal strip is labeled to match the electrical wiring diagram provided with the unit.

Low voltage labeling ranges from terminal numbers 1 to 79. All field wiring connections should be made to the top side of the terminals to prevent miswiring by modifying the factory wiring which is made to the bottom of the terminal strip.

(11) Power exhaust relay – (std on HBP/HcP/HdP/HPP units)

The control relay is factory installed in the duct furnace electrical junction box. The relay has a 24v coil with single-pole single throw (SPST) contacts. On a call for heat, the relay coil is energized resulting in the contacts energizing the power exhauster motor.

(12) furnace supply Power terminal strip – (std)

The furnace supply power terminal strip is located in the duct furnace electrical junction box. The terminal strip is labeled to match the electrical wiring diagram provided with the unit.

Supply power labeling ranges from terminal numbers 80 to 99.

All field wiring connections should be made to the bottom side of the terminals to prevent miswiring by modifying the factory wiring which is made to the top of the terminal strip.

(13) control step down transformer – (std)

The control step down transformer is located in the duct furnace 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, damper actuator, motor starter, etc. Refer to the unit model number to determine the volt- amp (VA) capacity of the duct furnace. The 15th digit indicates the VA (See Model Nomenclature).

(14) control relay – (oPt)

The control relay is factory installed in the electrical section.

See description of Option 8 for additional details.

(15) Blower low voltage terminal strip – (std)

The blower low voltage terminal strip is located in the electrical section. The terminal strip is labeled to match the electrical wiring diagram provided with the unit. Low voltage labeling ranges from terminal numbers 1 to 79. All field wiring connections should be made to the right side of the terminals to prevent miswiring by modifying the factory wiring which is made to the left side of the terminal strip.

(16) dead front disconnect switch – (oPt)

WARNING

When the dead front disconnect switch is in the “OFF” position, supply power remains energized at the blower supply power terminal strip and the top of the dead front disconnect switch. When providing service on or near these terminals, building supply power to the unit should be de-energized.

The dead front disconnect switch is factory installed in the electrical section. The disconnect switch is designed so that it must be turned “OFF” before entry to the electrical control cabinet can be obtained (See Figure 21.1). When in the “OFF” position, power is disconnected to all unit wiring electrically following the switch (See Warning). For servicing the unit, the disconnect switch can be manually overridden by using a wrench and turning the disconnect switch shaft 90° clockwise (See

Figure 21.1). Fusible and circuit breaker switches available.

For fusible switches, Class “J” time delay fuses must be field provided matching the fuse size listed on the Model Identification plate.

figure 21.1 - dead front disconnect switch assembly

BLOWER SECTION

ELECTRICAL

COMPARTMENT

ACCESS DOOR

DISCONNECT

SWITCH HANDLE

OPERATION

INSTRUCTION

LABEL

DISCONNECT

SWITCH HANDLE

SHOWN IN THE

"ON" POSITION

DISCONNECT

SWITCH HANDLE

SHOWN IN THE

"OFF" POSITION

BLOWER SECTION

ELECTRICAL

COMPARTMENT

STAND-OFF PANEL

SUPPLY POWER

WIRING TERMINALS

(SEE WARNING)

(17) step down transformer fuses – (oPt)

The transformer fuses are factory installed in the electrical section.

The fuses are included to protect the transformer. Fuses included.

(18) step down transformer – (oPt)

The step down transformer is factory installed in the eletrical section. The transformer is required for power exhausted units

(Digit 2 = P) with a supply voltage of 460V/3Ph and 575V/3Ph and all units that have an evaporative cooler (Digit 22 = 3,4,5, or 6).

For all units with an evaporative cooler, when the supply power voltage is 208V/1Ph or 208V/3Ph, the transformer is provided to step down the voltage from 208V to 115V. In this case, the evaporative cooler pump motor operates at 115V.

For power exhausted units and all units with an evaporative cooler, when the supply power voltage is 460V/3Ph or

575V/3Ph, the transformer is provided to step down from supply power voltage to 115V. In this case, the evaporative cooler pump motor operates at 115V.

5-572.8

21

oPtions

(19) factory installed minimum Positioner – (oPt)

The factory installed minimum positioner is installed in the electrical section and is used with a modulating damper actuator to set the minimum percentage of outside air. The minimum positioner dial is manually set between 0 to 100% resulting in a

2 to 10 VDC signal being sent to the damper actuator. When used in conjunction with the Proportional Temp Controller, the positioner sets the minimum outside air percentage and the

Proportional Temp Controller then modulates between the minimum position and 100% outside air.

figure 22.2 - minimum Positioner

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.

(26) filters – (oPt)

When filters are supplied with the unit, a rack and the filters are factory installed in the blower section. The unit can be supplied with 1" or 2" permanent filters, 2" FARR ® Aeropleat MERV 7 or

2" FARR ® 30/30 MERV 8 filters. For filter replacement, refer to

Maintenance.

80

60

40

20

(27) fresh air damper – (oPt)

When a fresh air damper is supplied with the unit, the damper is factory installed in the blower section. The fresh air damper is used as an outside air shut-off damper, so ultra low leak, Class II leakage resistance (less than 10 CFM/ft

2

at 1" W.C.) dampers with self-compensating stainless steel side seals and santoprene and galvanized steel blade seals are used.

Belimo

%

(29) rainhood and Birdscreen – (oPt)

The rainhood and birdscreen is shipped loose for field installation at the back of the blower section. For installation instructions, refer to Literature 5-589 supplied with the rainhood and birdscreen.

(20, 21) extended Grease lines – (oPt)

The extended grease lines (21) are factory installed in the blower section and include Zerk® grease fittings (20) factory installed on the exterior corner post between the electrical and blower sections. This option allows the pillow block bearings to be lubricated with a grease gun without requiring the service personnel to remove both blower doors to access the bearings.

Refer to Lubrication Recommendations for lubricant recommendations.

(22) return air fire stat – (oPt)

The return air fire stat is factory installed in the electrical section with the sensor in the return air stream. In case of elevated temperatures in the return air stream, the manual reset switch shuts down the entire unit. If the limit temperature is exceeded, a service person must inspect the unit for the cause of the high discharge temperature, take corrective action, and then reset the switch.

(23) Blower Housing – (std)

The blower housing is factory installed in the blower section.

The blower housing contains a double width, double inlet (DWDI) blower wheel so both sides of the blower must be free from obstructions for proper operation. For Right Hand units

(Digit 9 = R), during operation the blower wheel should rotate in the clockwise direction when viewed from the service side of the unit. For Left Hand units (Digit 9 = L), during operation the blower wheel should rotate in the counterclockwise direction when viewed from the service side of the unit. If necessary, interchange supply power wiring to reverse blower rotation.

(24) Pillow Block Bearings – (oPt)

The blower bearings are factory installed in the blower section.

The blower can be provided with either spider or pillow block bearings. Spider bearings are permanently lubricated and do not require lubrication. Pillow block bearings are shipped nongreased from the factory and require lubrication before start-up.

For lubrication recommendations, see Lubrication

Recommendations.

(25) Blower motor – (std)

The blower motor is factory installed in the blower section. The blower motor can be provided in a variety of supply voltages, frame types, and motor horsepowers. Refer to the model nomenclature to determine the type of motor provided. The

22

(30) direct drive damper actuator – (oPt)

The direct drive damper actuator is factory installed in the blower section on the side of the fresh air damper. The actuator controls the position of the fresh air damper. The return air damper, if provided, is controlled by the damper linkage between the two dampers. All damper actuators are low voltage (24V). For Right

Hand units (Digit 9 = R), during operation the actuator should rotate in the counterclockwise direction when viewed from the service side of the unit. For Left Hand units (Digit 9 = L), during operation the actuator should rotate in the clockwise direction when viewed from the service side of the unit. Three different types of dampers actuators can be provided: Two-position,

Modulating, and Floating.

Two-position Damper Actuator: A two-position damper actuator is provided with Air Control options DA, EA and EQ (Digits

20 & 21). The two-position damper actuator provides open/ closed operation of the fresh air damper. When the damper is energized, the fresh air damper is opened to 100% outside air in

75 seconds (for outside air percentages lower than 100%, refer to the following section, "Setting the Damper Limiter"). All twoposition damper actuators are spring return, so when the damper is de-energized, the fresh air damper will spring closed. All twoposition dampers include auxiliary switches (one normally open and one normally closed) that reverse when the damper actuator is at 85° rotation (adjustable).

Setting the Damper Limiter: The two-position damper limiter is factory set to prevent the outside air damper from opening

100%. Field adjustment of the two-position damper limiter is accom plished by the following:

1. Determine the amount of damper rotation required

(Percentage of outside air).

2. Locate the angle of rotation limiter on the actuator so that its edge lines up with the degree graduation on the actuator face which corresponds with the required rotation. (See

Figure 23.1 which is shown at 50% rotation limit.)

3. Position the limiter back to the desired position, making sure the locating “teeth” on the limiter are engaged into the locating holes on the actuator.

4. Fasten the limiter to the actuator using the screw provided.

5. Test the damper rotation either manually with the manual crank or apply power. Re-adjust if necessary.

6. If the damper end switch is being used in the control circuit and needs to be adjusted for the new minimum position, refer to the next section, "Adjusting the Damper End Switch".

5-572.8

oPtions figure 23.1 - two-position damper actuator and limiter

closure which electrically drives the damper closed. If the supply power to the unit is interrupted before the damper actuator can drive closed, the fresh air damper will remain open. The damper can be manually closed through the use of the manual override switch on the floating damper actuator.

Adjusting the Damper End Switch

If the damper limiter was adjusted in the previous section, it may be required to adjust the Damper End Switch as follows:

1 The actuator must be in its fail-safe position.

2. Insert the crank handle into the torx shaped hole located in the center of the adjustable switch pointer as shown in

Figure 23.2.

3. Gently rotate the crank until the switch pointer is at the desired switch point in degrees as shown.

figure 23.2 - adjusting the damper end switch

Modulating Damper Actuator: A modulating damper actuator is provided with Air Control options GA, GB, GC, GD, GE, GG, GH,

GJ, Gk and GM (Digits 20 & 21). The modulating damper actuator provides incremental operation of the fresh air damper

(The return air damper is controlled by the fresh air damper position). Full 90° rotation of the modulating actuator requires

150 seconds. All modulating damper actuators operate using a

0-10 Vdc input signal (Air Control GB utilizes a resistor to convert from a 4-20 mA to 0-10 Vdc) from a damper controller.

All modulating damper actuators are spring return, so when the damper is de-energized, the fresh air damper will spring closed.

Floating Damper Actuator: A floating damper actuator is provided with Air Control option HP (Digits 20 & 21). The floating damper actuator provides forward and reversing damper operation in response to contact closures from the space pressure controller.

When the space pressure is above the desired set point, a high pressure contact on the space pressure controller energizes the damper to drive the fresh air damper closed. When the space pressure is below the desired set point, a low pressure contact on the space pressure controller energizes the damper to drive the fresh air damper open. When the space pressure is between the high and low set points, the damper “floats” at the fresh air percentage that satisfied the space pressure controller. Full 90° rotation of the floating actuator requires 150 seconds. For additional information on the space pressure controller, refer to

Literature 5-585.

The damper actuator is designed to “float” and therefore it is not spring return. When the unit is de-energized under normal operation, the fresh air damper is closed by a relay contact

5-572.8

(31) enthalpy controller – (oPt)

An enthalpy controller is provided with Air Control option GJ

(Digits 20 & 21) and factory installed in the blower section.

The purpose of the enthalpy controller is to use outside air for cooling, whenever possible, to reduce compressor operation of the mechanical cooling system. The economizer functions as a true first stage of cooling and provides maximum fuel economy during the cooling cycle.

The components used for the Enthalpy Economizer are:

• enthalpy economizer controller. The Enthalpy Controller is used in conjunction with the Enthalpy Sensor and a Mixed Air

Temperature sensor. The controller is factory mounted in the blower control cabinet.

• outside air enthalpy sensor. The sensor provides a signal in relation to enthalpy (temperature and humidity) of the outside air. The sensor is installed in the outside air stream.

• mixed air temperature sensor. The sensor is factory installed in the blower section to sense the mixed air temperature of the fresh and return air streams.

typical sequence of operation

Heating or Ventilation Mode

When the space thermostat calls for heat or the fan is on without a call for cooling (ventilation mode), the economizer is automatically locked out and holds the outdoor air damper at the minimum position setting. The minimum position adjustment keeps the outdoor air damper from closing completely during system operation to provide ventilation in both the heating and cooling modes.

Cooling Mode

When the space thermostat calls for cooling, the system operates as follows:

outdoor air enthalpy is Below changeover set Point

1. The outdoor air damper is proportioned open (and the return air damper is proportioned closed) to maintain a temperature of 53°F (default, adjustable) at the mixed temperature air sensor.

2. During economizer operation, mechanical cooling is operated by the second stage of the cooling on the space thermostat.

outdoor air enthalpy is above changeover set Point

1. The outdoor air damper is closed to its minimum position.

2. A call for cooling from the space thermostat brings on mechanical cooling.

For complete details on the Enthalpy Economizer controller setup and operation, please refer to the latest revision of Modine publication 5-598, "Setup Instructions, Enthalpy Economizer

Controller".

figure 23.3 - enthalpy controller

23

oPtions

(32) damper to damper linkage – (oPt)

Units with fresh and return air dampers include a damper actuator that controls the fresh air damper. The return air damper position is controlled by the fresh air damper through the connecting rod. For adjustment, refer to Damper Linkage

Adjustment.

(33) return air damper – (oPt)

When a return air damper is supplied with the unit, the damper is factory installed in the blower section. The return air damper is used as an air balancing damper so low leak, Class III leakage resistance (less than 40 CFM/ft2 at 1" W.C.) dampers with selfcompensating stainless steel side seals and santoprene blade seals are used.

(34) Proportional temperature controller sensor – (oPt)

A proportional temperature controller sensor is provided with Air

Control options GG, GH, Gk or GM (Digits 20 & 21) and factory installed in the blower section. The sensor provides the mixed air temperature signal to the A350P Proportional Temperature

Controller which is mounted in the electrical section.

(35) motor and Blower vibration isolation – (std)

The motor vibration isolation is factory installed in the blower section below the blower support bracket. The four (4) 13/32"-

neoprene vibration mount grommet provides isolation of the blower housing and motor from the blower support channels.

The blower vibration isolation is factory installed in the blower section between blower discharge and the blower duct connection. The blower duct connection is not rigidly mechanically fastened and the 1/4'' thick gasketing around the duct transition provides vibration isolation.

figure 24.1 - Blower/motor vibration isolation

The convenience outlet is factory installed in the blower section for providing power for 115V service equipment (trouble light, power tools, etc.). The 115V ground fault circuit interrupter

(GFCI) is rated for 15 amps and includes test and reset switches. A separate field supplied 115V/1Ph power supply must be routed through the electrical section wall into the back of the convenience outlet junction box.

(38) Blower door switch – (oPt)

The blower door switch is factory installed inside the blower section door on the access side of the unit. When the blower section door is removed, the momentary switch is released and interrupts power to the low voltage circuit. For single phase units 1-1/2 Hp and less, the door switch de-energizes a relay that controls blower motor operation. For three phase units and single phase units 1-1/2 Hp and greater, the door switch de-energizes the motor starter that controls blower motor operation. For servicing, the switch is equipped with an override position that can be manually pulled out to override the switch.

(See Figure 24.2).

figure 24.2 - Blower door switch with manual override

COM

NC NO

SUPPORT

RAIL

VIBRATION

ISOLATOR

(36) Blower support – (std)

The blower supports are factory installed in the blower section.

The blower supports are used to rigidly support the weight of the blower and motor during operation and shipping.

(37) convenience outlet – (oPt)

WARNING

Do not perform service on the convenience outlet without disconnecting its power supply. The convenience outlet power supply is separate from main power supply to the unit. When the main disconnect switch is de-energized, the convenience outlet power supply remains energized.

(39) dirty filter switch – (oPt)

The dirty filter pressure switch is factory installed in the electrical section. The dirty filter pressure switch monitors the pressure differential between the two sides of the filters. When the filters become dirty, the differential pressure increases and trips the pressure switch which energizes a light on the remote monitoring panel. The pressure differential switch must be field set because setting the switch requires the blower to be in operation and the ductwork to be installed.

setting the dirty filter switch

The range of the dirty filter pressure switch is adjustable between 0.17" to 5.0" W.C.

1. Ensure that the unit filters are clean. Clean or replace if necessary.

2. Connect the leads of a continuity tester to the NO and C terminals of the dirty filter pressure switch. See Figure 25.1

3. Set the thermostat so that there is a call for heat. This should fire the burner and the blower should start.

4. Turn the set screw of the pressure switch clockwise until it stops. This will set the pressure at 5.0" W.C. and the continuity tester should be sensing an open circuit.

5. Begin turning the screw counterclockwise until the continuity tester senses a closed circuit. This determines the base pressure of the system.

6. Turn the screw clockwise until the continuity tester senses an open circuit and then one additional full turn (This is approximately 0.25" W.C.) This will allow for the increase in static pressure due to dirty filters.

24

5-572.8

oPtions figure 25.1 - dirty filter Pressure switch and air flow

Proving switch

Positive pressure connector

Negative pressure connector

C

NO

(42) Proportional temperature controller – (oPt)

A proportional temperature controller is provided with Air Control options GG, GH, Gk or GM (Digits 20 & 21) and factory installed in the electrical section. The controller compares the mixed air temperature set point and the mixed air temperature from the Proportional Temperature Controller Sensor. The controller sends a 2-10 Vdc signal to the modulating damper actuator in order to maintain the set point. The controller includes a set point dial that must be field set to the desired mixed air temperature

(typically 55°F).

figure 25.3 - Proportional temperature controller

OVERLOAD

MODULE

Pressure adjustment set screw

(40) motor starter – (oPt)

The motor starter is factory installed in the electrical section.

A motor starter is required for all three phase motors and single phase motors 1-1/2 Hp and greater. The motor starter current set point dial is factory set to the motor full load amp draw listed on the motor nameplate.

(40) variable frequency drive – (oPt)

The VFD controller adjusts the motor rpm to vary the unit air flow. The minimum air flow may be varied between 30 and 100% of the full speed air flow depending on the controls selection of the unit. The control changeover options are two speed, floating building pressure sensing, and building management control.

The overload module of the motor starter is designed to trip to protect the motor from exceeding the nameplate amps. If the motor exceeds the amp draw on the current set point dial, the trip condition is indicated by a red color in the trip indicator window.

The motor starter can be placed in the automatic or manual reset positions. Automatic reset is accomplished by depressing the “RESET” button and turning the button 1/4 turn. When in the automatic reset position, if the overload module trips, the module will reset itself once the overload relay has cooled. In the manual reset position, if the overload module trips, the “RESET” button must be depressed before the blower can operate.

The contractor module includes one (1) normally open auxiliary contact. The contact rating is 10 amps.

If the factory installed motor starter option was not ordered with a unit that has a three phase motor or single phase motor 1-1/2 Hp or greater, a motor starter must be field supplied and installed.

figure 25.2 - motor starter

A1

1 L1 3 L2 5 L3

A2

13 NO

CONTACTOR

MODULE

TRIP

INDICATOR

WINDOW

CURRENT

SET POINT

DIAL

2

T1

4

T2

6

T3

14

NO

A2

RESET

98

NO

97

2

T1

4

T2

H

95

NC

96

A RE

S

T

E

6

T3

(41) mild temperature thermostat – (oPt)

The mild temperature thermostat is factory installed in the electrical section. The mild temperature thermostat is designed to lockout the burner during mild weather conditions which set to the desired mild temperature condition (refer to the latest revision of Modine Literature 75-540).

5-572.8

(43) Warm-up stat – (oPt)

A warm-up stat is provided with Air Control options Gk or GM

(Digits 20 & 21) and factory installed in the electrical section with the sensor in the return air stream. The warm-up thermostat monitors the return air temperature to the unit and prevents the fresh air dampers from opening until the temperature of the return air has reached the desired set point (typically 65°F or 5°F below the room temperature).

(44) Blower supply Power terminal strip – (std)

The blower supply power terminal strip is located in the electrical section. The terminal strip is labeled to match the electrical wiring diagram provided with the unit. Supply power labeling ranges from terminal numbers 80 to 99. All field wiring connections should be made to the bottom side of the terminals to prevent miswiring by modifying the factory wiring which is made to the top of the terminal strip.

(45) service switches – (oPt)

The service switches are factory installed in the electrical section. The service switches allow for service personnel to independently test operation of the damper, blower, and furnace without using jumper wires. The switches override the remote monitoring panel and/or thermostats to energize each component directly. All switches need to be reset to the “OFF” position after testing otherwise the components will remain energized.

figure 25.4 - service switches

25

oPtions

(46) electronic modulation amplifier – (oPt)

An electronic modulation amplifier is provided factory installed in the duct furnace electrical junction box when the unit is equip ped with Electronic Modulating Gas Controls (Digit 12 =

4). The amplifier processes the thermostat temperature and set point signals to modulate the firing rate between 40% to 100% full fire. For additional information, refer to Control Operating

Sequence.

(47) electronic modulating Gas valve – (oPt)

An electronic modulating gas valve is provided factory installed in the duct furnace gas train when the unit is equipped with

Electronic Modulating Gas Controls (Digit 12 = 4, 7, or 8). The gas valve modulates the firing rate between 40% to 100% full fire based on the input signal from the Electronic Modulation

Amplifier or Signal Conditioner. For additional information, refer to Control Operating Sequence.

(48) air flow Proving switch – (oPt)

The air flow proving switch is factory installed in the duct furnace electrical junction box. The air flow proving switch monitors the pressure differential between the duct furnace and the atmosphere. The purpose of the air flow proving switch is to cut power to the gas controls if a positive pressure is not measured by the switch. This could be caused by a lack of air movement through the heat exchanger.

note: The air flow proving switch will prevent any heat exchanger warm-up because the gas controls can not be energized until air flow is proven.

setting the air flow Proving switch

The range of the air flow proving switch is adjustable between 0.17" to 5.0" W.C.

1. Set the thermostat so that there is a call for heat. This should start the blower and then the burner ignition sequence.

2. Turn the set screw of the pressure switch clockwise until it stops.

This will set the pressure at 5.0" W.C.

3. Turn the screw counter-clockwise until the gas controls light and then one additional full turn (This is approximately 0.25'' W.C.).

This will allow for dirty filters or any other slight static pressure increases in the system.

(49) High limit switch

Automatic – (STD)

The automatic reset high limit switch is factory installed in the duct furnace electrical junction box. If the limit temperature is exceeded, the gas controls are de-energized until the switch is cooled.

Manual – (OPT)

The manual reset high limit switch is factory installed in place of the standard automatic reset high limit switch located in the duct furnace electrical junction box. In case of a failure of the blower motor, blockage of the inlet air, etc., the manual reset switch prevents the unit from cycling on the high limit. If the limit temperature is exceeded, a service person must inspect the unit for the cause of the high discharge temperature, take corrective action, and then reset the switch.

(50) supply air fire stat – (oPt)

The supply air fire stat is factory installed in the duct furnace electrical junction box with the sensor in the discharge air stream. In case of elevated temperatures in the supply air stream, the manual reset switch shuts down the entire unit. If the limit temperature is exceeded, a service person must inspect the unit for the cause of the high discharge temperature, take corrective action, and then reset the switch.

(51) main Gas valve – (std)

The main gas valve is factory installed in the duct furnace 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.

(52) Burner Box – (std)

The burner box is located in the duct furnace section and contains the burner and pilot assembly. The burner box includes an access panel for removal of the burner for inspection and servicing.

(54) discharge damper – (oPt)

When a discharge air damper is supplied with the unit, the damper is factory installed in the downturn plenum section. The discharge air damper is used an outside air shut-off damper so ultra low leak, Class II leakage resistance (less than 10 CFM/ ft

2

at 1" W.C.) dampers with self-compensating stainless steel side seals and santoprene and galvanized steel blade seals are used.

(55) differential Pressure switch

A differential pressure switch is supplied on all power vented duct furnaces and is designed to prevent operation of the main burner in the event there is improper venting through the vent system. This may occur due to a restricted vent, inadequate vent draw, uninsulated vent pipe in cold ambient or long vent runs, excessive vent diameter, restricitve vent terminal, negative pressure within space, etc. See Troubleshooting section for more information.

(not shown) circuit analyzer – (oPt)

The circuit analyzer is factory installed on the door of the electrical section. The circuit analyzer is used to quickly assist service personnel in troubleshooting by monitoring the unit firing sequence and vital operating steps. Lights will come on as a point of electrical operation is passed and proven. If any light is not lit, that is the point where failure occurred.

figure 26.1 - circuit analyzer

Circuit analyzer tagging will vary based on the unit ordered.

Circuit analyzer shown is for reference only.

26

5-572.8

General Performance data table 27.1

General Performance data - models With Blower

model size (digits 4-6)

Btu/Hr input

➀

Btu/Hr output

➀

Blower style (digit 16 letter)

max. temp. rise (°f)

min. temp. rise (°f)

max. cfm

min. cfm

➁

75 100 125 150 175

75000 75000 100000 100000 125000 125000 150000 150000 175000 175000

60000 60000 80000 80000 100000 100000 120000 120000 140000 140000

A or B C or D C or D E or F C or D E or F C or D E or F C or D E or F

100 100 100 85 100 100 100 100 100 100

28 20 21 20 27 20 33 20 39 23

1980 2778 3450 3704 3450 4630 3350 5556 3350 5556

556 556 741 875 926 926 1111 1111 1296 1296

model size (digits 4-6)

Btu/Hr input

➀

Btu/Hr output

➀

Blower style (digit 16 letter)

max. temp. rise (°f)

min. temp. rise (°f)

max. cfm

min. cfm

➁

200 225 250

200000 200000 200000 225000 225000 225000 250000 250000 250000

160000 160000 160000 180000 180000 180000 200000 200000 200000

C or D E or F G or H C or D E or F G or H E or F G or H I, J, or k

100 85

44 28

85 100 95 95 100 100 96

23 49 32 26 31 26 20

3400 5250 6500 3400 5250 6500 6000 7250 9259

1481 1750 1750 1667 1750 1750 1852 1852 1925

model size (digits 4-6)

Btu/Hr input

➀

Btu/Hr output

➀

Blower style (digit 16 letter)

max. temp. rise (°f)

min. temp. rise (°f)

max. cfm

min. cfm

➁

300 350 400

300000 300000 300000 350000 350000 350000 400000 400000 400000

240000 240000 240000 280000 280000 280000 320000 320000 320000

E or F G or H I, J, or k E or F G or H I, J, or k E or F G or H I, J, or k

100 100 100 100 100 100 100 100 100

37 31

6000 7250

20 45

11111 5700

37 22

7000 12000

52 42

5700 7000

25

12000

2222 2222 2222 2593 2593 2593 2963 2963 2963

model size (digits 4-6)

Btu/Hr input

➀

Btu/Hr output

➀

Blower style (digit 16 letter)

max. temp. rise (°f)

min. temp. rise (°f)

max. cfm

min. cfm ➁

500 600 700

500,000 500,000 500,000 600,000 600,000 600,000 700,000 700,000 700,000

400,000 400,000 400,000 480,000 480,000 480,000 560,000 560,000 560,000

G or H I, J, or k

120 120

53 40

L G or H I, J, or k

120 120

40 63

L

120 120

40 40

G or H I, J, or k

120 120

76 40

L

120

40

3086 3086 3086 3704 3704 3704 4321 4321 4321

model size (digits 4-6)

Btu/Hr input ➀

Btu/Hr output ➀

Blower style (digit 16 letter)

max. temp. rise (°f)

min. temp. rise (°f)

max. cfm

min. cfm ➁

800

G or H I, J, or k L

840

800,000 800,000 800,000 1,050,000 1,050,000 1,200,000 1,200,000

640,000 640,000 640,000 840,000 840,000 960,000 960,000

I, J, or k L

960

I, J, or k L

120 120 120 120 120 120 120

87 46 41 60 60 68 63

6850 13000 14500 13000 13000 13000 14000

4938 4938 4938 6481 6481 7407 7407

➀

Ratings are shown for elevations up to 2000 ft. For higher elevations the input rating should be reduced at the rate of 4% for each 1000 feet above sea level.

For Canada, in elevations between 2000 and 4500 feet, the unit must be derated to 90% of the rating listed above.

➁

For Variable Air Movement Applications, see page 18.

5-572.8

27

General Performance data table 28.1 - air temperature rise

Btu/Hr

➀

input air temperature rise through unit (°f)

20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 max cfm min

75,000 60,000 2778 2222 1852 1587 1389 1235 1111 1010 926 855 794 741 694 654 617 585 556

➁

100,000 80,000 3704 2963 2469 2116 1852 1646 1481 1347 1235 1140 1058 988 926 871 823 780 741

125,000 100,000 4630 3704 3086 2646 2315 2058 1852 1684 1543 1425 1323 1235 1157 1089 1029 975 926

150,000 120,000 5556 4444 3704 3175 2778 2469 2222 2020 1852 1709 1587 1481 1389 1307 1235 1170 1111

175,000 140,000 - 5185 4321 3704 3241 2881 2593 2357 2160 1994 1852 1728 1620 1525 1440 1365 1296

200,000 160,000 - 5926 4938 4233 3704 3292 2963 2694 2469 2279 2116 1975 1852 1743 1646 1559 1481

225,000 180,000 - 6667 5556 4762 4167 3704 3333 3030 2778 2564 2381 2222 2083 1961 1852 1754 1667

250,000 200,000 9259 7407 6173 5291 4630 4115 3704 3367 3086 2849 2646 2469 2315 2179 2058 1949 1852

300,000 240,000 11111 8889 7407 6349 5556 4938 4444 4040 3704 3419 3175 2963 2778 2614 2469 2339 2222

350,000 280,000 - 10370 8642 7407 6481 5761 5185 4714 4321 3989 3704 3457 3241 3050 2881 2729 2593

400,000 320,000 - 11852 9877 8466 7407 6584 5926 5387 4938 4558 4233 3951 3704 3486 3292 3119 2963

Btu/Hr

➀

air temperature rise through unit (°f)

max cfm min

➁

500,000 400,000 9259 8230 7407 6734 6173 5698 5291 4938 4630 4357 4115 3899 3704 3527 3367 3221 3086

600,000 480,000 11111 9877 8889 8081 7407 6838 6349 5926 5556 5229 4938 4678 4444 4233 4040 3865 3704

700,000 560,000 12963 11523 10370 9428 8642 7977 7407 6914 6481 6100 5761 5458 5185 4938 4714 4509 4321

800,000 640,000 14500 13000 11852 10774 9877 9117 8466 7901 7407 6972 6584 6238 5926 5644 5387 5153 4938

1,050,000 840,000

1,200,000 960,000

- - - - 12963 11966 11111 10370 9722 9150 8642 8187 7778 7407 7071 6763 6481

- - - - - 13675 12698 11852 11111 10458 9877 9357 8889 8466 8081 7729 7407

➀

Ratings are shown for elevations up to 2000 ft. For higher elevations the input rating should be reduced at the rate of 4% for each 1000 feet above sea level. For

Canada, in elevations between 2000 and 4500 feet, the unit must be derated to 90% of the rating listed above.

➁

For Variable Air Movement Applications, see page 18.

air temperature limits

The maximum allowable discharge air temperature is 150°F. The maximum allowable air temperature rise per furnace for Low Air

Temperature Rise Units is 60°F. All system units are designed for a maximum allowable total static pressure of 3.0" W.C.

28

5-572.8

unit selection selection Procedure

In order to properly select an indirect-fired heating, ventilating, cooling or make-up air unit, it is necessary to have the following basic information.

1. required air handling capacity (cfm).

The air capacity of the unit is usually determined by the ventilation air requirements, exhaust load of the building, infiltration losses, or the air turns/changes of the space.

2. outdoor and indoor design temperature.

The outdoor design temperature is determined by using the ASHRAE Guide design temperatures for the city where the equipment is to be installed. For heating and ventilating units, the desired room temperature would be used as the indoor design temperature. In the case of

100% make-up air units, the discharge air temperature should be at least equal to the temperature of the air being exhausted.

3. required heating output capacity (Btu/Hr).

The heating output capacity of the unit is determined by using the formula:

BTU/HR = CFM x Temp. Rise (°F) x 1.08

4. external static pressure to unit.

The external static pressure (E.S.P.) is determined using the ASHRAE Guide for duct losses, or may be provided by the design engineer.

5. unit configuration with options and accessories

(rainhood, filters, dampers, or evaporative cooler).

The unit configuration is determined by the location where the unit is to be installed. The critical options and accessories are those that add internal static pressure

(I.S.P.) to the unit. Once these items are determined, the pressure drop curves would be used to calculate the total pressure drop (T.S.P.)

Total Static Pressure = Internal + External Static Pressure

6. 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 unit is installed downstream of a cooling coil or evaporative cooler, and when the combined entering/return air to the unit is below 40°F.

7. type of fuel.

Either natural or propane gas determined by the design engineer.

8. Gas control staging method.

Either single stage, two stage, or electronic modulation determined by the design engineer.

9. main power supply voltage to unit.

10. 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

Select an indirect-fired, 100% make-up air unit to meet the following conditions:

1. CFM at sea level = 5,000 cfm

2. Outdoor design temp. = 10°F

Indoor design temp. = 70°F

3. Heating output capacity =

5000 cfm x (70°F -10°F) x 1.08 = 324,000 Btu/Hr

4. External Static Pressure = 0.65

5. The Power Vented unit with the controls on the Right

Hand Side is to be provided with the following:

2" Permanent Filters, a Rainhood with Fresh Air Damper,

and a Downturn.

6. Heat exchanger and burner = 409 Stainless Steel.

7. Gas Type = Natural

8. Gas Controls = Electronic Modulating with Duct Sensing.

9. Supply Voltage: 460V/60Hz/3Ph

10. Altitude: 1000 feet

With the information listed above, the basic model, using the

Model Nomenclature shown on page 57, can be selected as shown in the following example:

1. determine the model configuration and venting:

The Model Configuration is determined by the required sections of the unit (Blower and Downturn) and the venting style (Power) that are obtained from item #5. Using the

Model Nomenclature on page 59, the Model Configuration and Venting = HDP.

2. determine the furnace input rating (mBH):

Using the Heating output capacity, the Furnace Input

Rating is determined from Table 27.1. The closest model to 324,000 Btu/Hr output has an Btu/Hr Input rating of

400,000 Btu/Hr so the Furnace Input Rating = 400.

3. determine the Heat exchanger/Burner/drip Pan material:

From item #2 listed above, the Heat Exchanger and Burner required are 409 Stainless Steel. Because the Drip Pan material is not specified, the standard Aluminized Steel drip pan will be used. Thus, the Heat Exchanger/Burner/Drip

Pan Material = S.

4. determine the development sequence:

From item #8 listed above, the modulating gas controls result in the Development Sequence = M.

5. determine the access side:

From item #5 listed above, the Right Hand Gas controls result in the Access Side = R.

6. determine the air temperature rise:

From item #2 listed above, the Air Temperature Rise is

60°F (70°F - 10°F). However, using the output capacity of the HDP400 @ 5000 cfm, the resulting temperature rise is

59.3°F (320,000/(5000 x 1.08). Since the rise is less than

60°F, the Air Temperature Rise = L.

7. determine the Gas type:

From item #7 listed above, the Natural Gas results in the

Gas Type = N.

8. determine the Gas valve:

From item #8 listed above, the Electronic Modulating with

Duct Sensing results in the Gas Valve = 4.

9. determine the additional safety switches:

Since no additional safety switches were specified, the

Additional Safety Switches = 0.

5-572.8

29

unit selection

10. determine the supply voltage:

From item #9 listed above, the 460V/60Hz/3Ph results in the Supply Voltage = F.

11. determine the transformer:

With the selected Unit Type = HDP, the Transformer = 2.

12. determine the Blower size and Bearing type:

Using Table 27.1, the Model Size 400 has three available blowers for which the performance tables are shown on page 32. Since all of the blower performance tables can provide the required 5000 cfm, the total static pressure for each blower performance curve must be determined.

A) The Pressure Drop of an option or accessory is determined by entering the right of the table at the desired cfm and reading across the table until the cfm intersects the desired item. For this example, in table

31.1 the 2” Permanent Filter is used. At the point of intersection, read across the table to the right and read the pressure drop, in inches of water column for the filters. For this example, the pressure drop is 0.06” W.C.

This method is used to determine the pressure drop for the other options and accessories. As a result:

For the Model Size 400 with Digit 16 = E,F,G, or H:

2” Permanent Filters:

Rainhood:

0.06” W.C.

0.11” W.C.

Downturn: 0.07” W.C.

Internal Static Pressure Drops 0.24” W.C.

The Total Static Pressure for the system is determined by Internal Static + External Static = Total Static Pressure

For this example 0.24” + 0.65” = 0.89” W.C. T.S.P.

From page 31, for the Model Size 400 with

Digit 16 = I, J, or k:

2” Permanent Filters:

Rainhood:

0.04” W.C.

0.11” W.C.

Downturn: 0.07” W.C.

Internal Static Pressure Drops 0.22” W.C.

The Total Static Pressure for the system is determined by Internal Static + External Static = Total Static Pressure

For this example 0.22” + 0.65” = 0.87” W.C. T.S.P.

B) Using the total static pressure (T.S.P.) calculated in step

12a, use blower performance tables for the Model Size

400 (Tables 33.1).

Using Table 33.1, enter the table at the required 5000 cfm for E.F. blowers, and follow the cfm line to the right until it intersects with the T.S.P. line of 0.75” W.C. which is shown at the top of the table. At the point of intersection of these two columns, read the required horsepower and blower rpm. Repeat this process for

1.00” T.S.P and iterate to determine the BHP and rpm for 0.89” W.C. For this example the horsepower is 5 and the blower rpm is 1280.

Following this procedure for G,H blowers (Using 5000 cfm and 0.89” W.C. T.S.P), the horsepower is 5 hp and

920 rpm. Following this procedure for I,J,k blowers

(Using 5000 cfm and 0.87” W.C. T.S.P), the horsepower is 3 hp and 700 rpm. Although I,J,H blowers results in a

3 hp motor, this blower requires the use of the extended cabinet length. As a result, for purposes of this selection example G,H blowers will be used.

Since the Bearing Type was not specified, the standard spider bearings will be used. Thus, using Table 33.1 with spider bearings, the Blower Size and Bearing Type = G.

13. determine the motor Horsepower:

The motor horsepower determined in step 12 was a 3 Hp.

Since the supply voltage is 460V/60Hz/3Ph, a motor starter will need to be provided either with the unit or by others.

For purposes of this selection, a motor starter by others will be used so the Motor Horsepower = G.

14. determine the motor type:

The motor type was not specified so for purposes of this selection Open Drip Proof (ODP) will be used. Reviewing

Table 40.2, the available ODP motor type is high efficiency

(ODP HE), resulting in the Motor Type = 2.

15. determine the sheave arrangement:

To establish the Sheave Arrangement, the motor frame size must be determined. The Motor Data tables on pages 39 to

40 contain the motor frame size.

A) Using the Supply Voltage (460V/60Hz/3Ph), enter the correct Motor Data table (Table 40.2). Using Model

Nomenclature Digits 17 and 18 (G1) determined in steps

13 and 14, find the motor frame size (182T).

B) Using the Motor Frame Size enter the Sheave Selection table for the selected blower determined by step 13

(Table 36.2). Using the rpm calculated in step 12 (920 rpm), select the sheave range that contains the required rpm. Find the intersection with the Motor Frame Size to determine the Sheave Selection. For this example with a

182T frame with 920 rpm, the Sheave Arrangement = I.

16. determine the air control:

The Air Control option is selected based on the required damper configuration. The available damper selections are detailed on page 21. For this selection, a 100% fresh air unit without return air was required so the Air Control = DA.

17. determine the evaporative cooler:

An evaporative cooler was not specified so for purposes of this selection the Evaporative Cooler = 0.

18. determine the cooling coil:

A cooling coil cabinet was not specified so for purposes of this selection the Cooling Coil = 0.

Based on the previous steps, the model number for the base unit is the following:

HDP400SMRLN40F2GG1IDA00

Once the basic model has been determined, the additional options and accessories outlined on page 19 to 26 can be added to the unit.

30

5-572.8

oPtion & accessory Pressure droP data

table 31.1 - option & accessory Pressure drop tables (in ''W.c.) ①

filters unit size

75

100/125

150/175

200/225

250/300

500/600

350/400

700/800

840/960 digit 16 a, B, c, d c, d, e, f c, d, e, f c, d, e, f, G, H e, f, G, H i, J, K e, f, G, H i, J, K cfm

4,000

5,000

6,000

7,000

8,000

9,000

10,400

11,111

3,500

4,000

4,500

5,500

6,500

7,250

1,925

3,000

5,000

5,500

6,000

6,500

1,852

2,000

2,500

3,000

5,556

1,481

2,000

2,500

3,000

3,500

4,000

4,500

2,000

2,500

3,000

3,500

4,000

4,500

5,000

5,200

2,500

3,000

3,500

4,000

4,500

4,630

1,111

1,500

1,800

2,000

2,300

2,778

741

1,000

1,500

2,000

556

600

700

800

1,000

1,200

1,400

1,600

6,500

7,000

2,593

3,000

4,000

5,000

6,000

7,000

2,593

3,000

3,500

4,000

4,500

5,000

5,500

6,000

8,000

9,000

10,000

11,050

12,000

12,500

13,000

1”

Permanent

0.05

0.08

0.11

0.15

0.19

0.24

0.32

0.36

0.07

0.08

0.10

0.14

0.19

0.23

0.02

0.03

0.07

0.09

0.11

0.13

0.03

0.03

0.04

0.05

0.19

0.01

0.01

0.02

0.03

0.03

0.05

0.06

0.03

0.05

0.06

0.08

0.11

0.13

0.16

0.17

0.07

0.09

0.11

0.14

0.17

0.17

0.01

0.02

0.04

0.05

0.06

0.08

0.01

0.02

0.03

0.05

0.01

0.01

0.01

0.02

0.02

0.03

0.03

0.04

0.07

0.08

0.02

0.02

0.03

0.04

0.06

0.07

0.02

0.02

0.03

0.03

0.04

0.05

0.06

0.06

0.09

0.11

0.13

0.15

0.18

0.19

0.20

2”

Permanent

0.05

0.08

0.11

0.15

0.20

0.25

0.33

0.38

0.08

0.10

0.13

0.19

0.26

0.32

0.01

0.03

0.11

0.14

0.16

0.18

0.02

0.03

0.04

0.06

0.23

0.02

0.02

0.04

0.05

0.06

0.08

0.10

0.04

0.06

0.08

0.11

0.13

0.16

0.19

0.21

0.08

0.11

0.13

0.16

0.20

0.21

0.02

0.03

0.04

0.05

0.07

0.09

0.02

0.02

0.04

0.06

0.01

0.01

0.01

0.01

0.02

0.02

0.03

0.04

0.10

0.11

0.01

0.02

0.03

0.04

0.05

0.07

0.02

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.12

0.14

0.17

0.20

0.22

0.24

2” farr aeropleat

0.08

0.11

0.15

0.19

0.24

0.30

0.38

0.43

0.12

0.15

0.18

0.25

0.34

0.41

0.03

0.05

0.16

0.19

0.22

0.25

0.05

0.05

0.07

0.10

0.30

0.03

0.04

0.05

0.07

0.09

0.11

0.13

0.06

0.09

0.11

0.14

0.18

0.21

0.25

0.27

0.10

0.13

0.16

0.20

0.25

0.26

0.03

0.04

0.08

0.10

0.11

0.15

0.02

0.03

0.05

0.07

0.02

0.02

0.03

0.03

0.04

0.05

0.06

0.07

0.16

0.18

0.02

0.02

0.04

0.05

0.07

0.10

0.04

0.05

0.06

0.07

0.09

0.10

0.12

0.14

0.12

0.15

0.18

0.22

0.26

0.28

0.30

2” farr 30/30 evap cooler, 12” media

Without

Pre-filters

With

Pre-filters

0.34

0.39

0.03

0.04

0.08

0.12

0.18

0.24

0.32

0.40

0.50

0.61

0.03

0.05

0.09

0.14

0.20

0.27

0.35

0.45

0.07

0.10

0.15

0.20

0.27

0.34

0.42

0.50

0.47

0.60

0.73

0.89

0.60

6000 Max CFM

1.05

1.23

0.09

0.15

0.24

0.34

0.46

0.61

0.77

0.95

0.55

0.60

5200 Max CFM

0.04

1.15

1.23

0.12

0.19

0.27

0.36

0.05

0.06

0.09

0.13

0.17

0.23

0.29

0.43

0.60

1.23

6500 Max CFM

0.02

0.05

0.08

0.15

0.23

0.34

0.15

0.17

0.24

0.32

0.41

0.52

0.64

0.91

0.05

0.07

0.10

0.13

0.16

0.20

0.24

0.29

0.09

0.14

0.20

0.27

0.35

0.45

0.46

0.61

0.77

0.95

0.60

1.23

10400 Max CFM

0.74

0.85

0.11

0.14

0.22

0.31

0.42

0.55

0.16

0.20

0.25

0.32

0.39

0.47

0.55

0.64

0.70

0.86

1.04

1.24

0.09

0.12

0.16

0.21

0.27

0.33

0.42

0.47

0.15

0.18

0.22

0.31

0.42

0.51

0.03

0.05

0.18

0.21

0.25

0.28

0.05

0.06

0.09

0.11

0.38

0.03

0.04

0.06

0.08

0.10

0.12

0.15

0.08

0.11

0.15

0.18

0.23

0.27

0.32

0.34

0.14

0.19

0.24

0.30

0.37

0.39

0.04

0.05

0.10

0.11

0.13

0.16

0.02

0.04

0.07

0.10

0.03

0.03

0.04

0.04

0.05

0.06

0.07

0.09

0.19

0.22

0.02

0.03

0.04

0.06

0.08

0.11

0.04

0.05

0.06

0.08

0.10

0.12

0.14

0.17

0.13

0.16

0.19

0.23

0.27

0.29

0.31

0.19

0.23

0.31

0.45

0.02

0.04

0.08

0.15

0.02

0.02

0.03

0.04

0.06

0.08

0.11

0.15

0.23

0.34

0.46

0.60

0.44

0.53

0.68

0.96

0.08

0.12

0.23

0.36

0.07

0.07

0.09

0.12

0.17

0.22

0.29

0.36

0.53

0.73

0.97

1.23

4000 Max CFM for Evap

11050 Max CFM

other rainhood and

Birdscreen

0.16

0.22

0.28

0.35

0.42

0.51

0.64

0.71

0.14

0.16

0.19

0.25

0.31

0.37

0.07

0.12

0.27

0.32

0.38

0.45

0.07

0.08

0.09

0.12

0.33

0.03

0.05

0.08

0.10

0.14

0.18

0.22

0.05

0.08

0.10

0.14

0.18

0.22

0.27

0.29

0.13

0.16

0.19

0.22

0.25

0.26

0.02

0.03

0.07

0.08

0.11

0.15

0.03

0.05

0.07

0.10

0.01

0.01

0.01

0.02

0.03

0.03

0.04

0.06

0.20

0.23

0.03

0.04

0.07

0.11

0.17

0.23

0.03

0.04

0.05

0.07

0.09

0.11

0.14

0.17

0.30

0.38

0.48

0.58

0.69

0.75

0.81

downturn

Plenum

0.08

0.12

0.18

0.25

0.33

0.42

0.57

0.66

0.06

0.08

0.10

0.15

0.21

0.27

0.02

0.04

0.18

0.21

0.26

0.30

0.02

0.02

0.03

0.04

0.26

0.02

0.03

0.04

0.06

0.09

0.11

0.14

0.04

0.05

0.07

0.10

0.13

0.17

0.21

0.23

0.07

0.11

0.15

0.19

0.25

0.26

0.02

0.02

0.05

0.06

0.08

0.12

0.00

0.01

0.02

0.04

0.00

0.00

0.01

0.01

0.01

0.02

0.03

0.04

0.12

0.14

0.02

0.03

0.05

0.07

0.10

0.14

0.02

0.03

0.04

0.05

0.06

0.07

0.09

0.10

0.19

0.24

0.30

0.36

0.43

0.47

0.51

①

Accessory / Option static pressure losses are approximate values only. Please consult the Accuspec selection software for static pressure losses at other than listed CFM.

5-572.8

discharge damper

0.07

0.11

0.16

0.21

0.28

0.35

0.47

0.53

0.06

0.07

0.09

0.13

0.18

0.23

0.02

0.04

0.10

0.12

0.14

0.16

0.02

0.02

0.03

0.04

0.13

0.01

0.01

0.02

0.04

0.05

0.06

0.08

0.02

0.02

0.04

0.05

0.06

0.08

0.10

0.11

0.04

0.05

0.07

0.09

0.11

0.11

0.01

0.01

0.03

0.03

0.04

0.06

0.01

0.01

0.02

0.03

0.00

0.01

0.01

0.01

0.01

0.01

0.02

0.02

0.04

0.05

0.01

0.01

0.01

0.02

0.04

0.05

0.01

0.01

0.01

0.01

0.02

0.02

0.03

0.04

0.08

0.10

0.14

0.17

0.21

0.23

0.26

31

BloWer Performance data

table 32.1 - unit Performance tables ① ②

air digit temp. unit size 16 rise cfm

75 a,B

100°F / -

79°F / -

75

100/125 c,d

start 125

100/125

end 100 c,d e,f

150/175 c,d

start 175

150/175 e,f

200/225 c,d

start 225

200/225 e,f

200/225 G,H

69°F / -

56°F / -

46°F / -

40°F / -

35°F / -

31°F / -

69°F / -

56°F / -

46°F / -

40°F / -

35°F / -

31°F / -

28°F / -

24°F / -

20°F / -

100°F / -

80°F/100°F

62°F/77°F

53°F/66°F

41°F/51°F

34°F/42°F

28°F/36°F

25°F/31°F

41°F/51°F

34°F/42°F

28°F/36°F

25°F/31°F

22°F/27°F

20°F/25°F

- / 23°F

- / 20°F

100°F/117°F

86°F/100°F

79°F/93°F

62°F/72°F

51°F/59°F

43°F/50°F

37°F/43°F

86°F/100°F

79°F/93°F

62°F/72°F

51°F/59°F

43°F/50°F

37°F/43°F

33°F/38°F

29°F/34°F

26°F/31°F

24°F/28°F

21°F/25°F

100°F/113°F

89°F/100°F

85°F/95°F

74°F/83°F

66°F/74°F

59°F/67°F

54°F/61°F

49°F/56°F

85°F/95°F

74°F/83°F

59°F/67°F

49°F/56°F

42°F/48°F

37°F/42°F

33°F/37°F

30°F/33°F

85°F/95°F

74°F/83°F

59°F/67°F

49°F/56°F

42°F/48°F

37°F/42°F

33°F/37°F

30°F/33°F

27°F/30°F

25°F/28°F

total static Pressure, ''W.c.

.

0.25 0.50 0.75 1.00 1.25 1.50 2.00 2.50 3.00

BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm

556

700

800

0.29 917 0.39 1062 0.50 1192 0.60 1310 0.72 1419 0.83 1522 1.07 1709 1.32 1879 - -

0.45

1400

0.93

1.28

800

1445

-

1.42

- -

1000

1200

-

0.20

0.19 705 0.27 862 0.35 1003 0.44 1131 0.54 1250 0.65 1361 - - -

0.27 770 36.00 912 0.45 1041 0.55 1161 0.66 1273 0.77 1377 1.00 1572 -

-

-

- -

- -

1601 - - - - - - - - - -

-

-

- -

- -

1600

1800 0.49 912 0.60 1030 0.72 1139 0.84 1244 0.96 1343 1.09 1437 1.36 1613 1.65 1777 1.94 1931

2000 0.65 987 0.77 1095 0.90 1197 1.03 1295 1.16 1388 1.30 1477 1.59 1645 1.89 1802 2.20 1950

0.94

1296 1.75 1377 1.92 1456 2.09 1532 2.26 1606 2.44 1679 2.80 1818 - - - -

741 - - 0.15 808 0.23 962 0.30 1093 0.38 1212 0.47 1320 0.60 1514 0.86 1686 1.07 1840

926

1200

1400

1800

2200

2600 1.45

0.28

2200

497

0.43

2.84

- - -

1731 - - - - - - - - - -

2600

553 0.58 662 0.75 762 0.93 855 1.12 942 1.33 1025 - - - - - -

3000

614 0.81 710 1.00 800 1.20 885 1.41 965 1.63 1042 - - - - - -

0.91 680 1.11 766 1.32 847 1.54 1731 1.77 997 2.01 1068 2.51 1202 3.04 1328 3.60 1446

3400

3704 1.58 802 1.83 873 2.08 942 2.34 1008 2.60 1072 2.88 1135 3.45 1254 4.04 1367 4.67 1474

4100 2.09 873 2.35 938 2.63 1001 2.91 1062 3.20 1122 3.49 1180 4.10 1291 4.74 1398 - -

2.93 969 3.23 1028 3.53 1085 3.84 1140 4.16 1194 4.48 1247 -

1111

1296

1400

- - - - -

0.19 727 0.28 884 0.38 1023 0.48 1148 0.59 1262 0.70 1369 0.94 1563 1.21 1738 1.48 1899

0.32 832 0.42 970 0.54 1093 0.66 1208 0.78 1313 0.91 1412 1.18 1596 1.47 1763 1.78 1917

0.59 994 0.72 1109 0.86 1216 1.00 1316 1.15 1410 1.30 1500 1.62 1667 1.95 1823 2.29 1967

1.00

1.58

1296

1400 0.17

1800

3.00

- - -

1743 - - - - - - - - - -

0.28

0.44

- - - - - -

588 0.59 697 0.75 796 0.91 887 1.09 972 1.27 1052 1.67 1201 - - - -

2600

3000 0.96 729 1.15 815 1.35 895 1.55 972 1.76 1044 1.98 1114 2.45 1245 2.94 1368 3.45 1483

3400

4200

1.35 804 1.55 881 1.77 955 2.00 1025 2.23 1092 2.47 1157 2.96 1280 3.49 1396 4.03 1505

1.82 880 2.05 951 2.29 1018 2.53 1083 2.79 1146 3.04 1206 3.58 1322 4.14 1431 4.72 1535

2.40 959 2.66 1023 2.92 1085 3.18 1145 3.45 1204 3.73 1260 4.30 1369 4.90 1472 - -

3.30

1212

- - - - -

- - - - - - - - - - - - - -

1481

1667 0.48 943 0.61 1078 0.75 1198 0.88 1309 1.03 1411 1.17 1507 1.47 1682 1.77 1842 2.09 1988

1750

2250

0.54 975 0.68 1106 0.82 1224 0.96 1332 1.11 1433 1.26 1527 1.57 1700 1.88 1857 2.21 2003

0.76

1.04

1.38

2750

2.28

1750

2000

2.98

- -

-

-

- -

- -

1756 - - - - - - - - - -

0.40 642 0.54 759 0.71 866 0.88 966 1.08 1058 1.28 1146 1.74 1309 2.23 1458 2.78 1595

0.68 746 0.85 845 1.04 938 1.23 1025 1.45 1108 1.67 1188 2.15 1337 2.67 1475 3.24 1604

1.09 857 1.29 942 1.50 1024 1.72 1101 1.95 1176 2.19 1248 2.71 1384 3.27 1511 3.86 1632

1.66 972 1.88 1047 2.12 1119 2.36 1188 2.61 1255 2.88 1320 3.43 1455 4.03 1563 - -

4000

1387

- - - - -

- - - - - - - - - - - - - -

2.40

3.34

0.20

2000

425

0.26

2500

3000

449

507 0.58 603 0.75 692 0.94 774 1.16 851 1.38 925 - - - - - -

0.65

3500

571 0.83 654 1.02 732 1.23 807 1.45 877 1.69 944 2.21 1071 - - - -

4000

639 1.17 713 1.38 782 1.60 850 1.84 914 2.10 975 2.64 1093 3.23 1202 3.86 1307

1.38 710 1.60 776 1.83 839 2.08 899 2.34 958 2.60 1014 3.18 1123 3.80 1226 4.46 1324

4500

5000

5500

1099

- - - - -

- - - - - - - - - - - -

①

Total static pressure should include external static pressure and accessory / option static pressure from Table 31.1. Unit internal resistance has been included in the unit performance tables.

②

Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed CFM / static pressures.

32

5-572.8

BloWer Performance data

table 33.1 - unit Performance tables ① ②

digit

250/300 e,f

start 300

250/300

start 300

250/300

G,H i, J, K air rise

100°F / 120°F

83°F / 100°F

74°F / 89°F

62°F / 74°F

53°F / 63°F

46°F / 56°F

41°F / 49°F

37°F / 44°F

34°F / 40°F

100°F / 120°F

83°F / 100°F

74°F / 89°F

62°F / 74°F

53°F / 63°F

46°F / 56°F

41°F / 49°F

37°F / 44°F

34°F / 40°F

31°F / 37°F

28°F / 34°F

46°F / 56°F

total static Pressure, ''W.c.

.

0.25 0.50 0.75 1.00 1.25 1.50 2.00 2.50 3.00

cfm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm m

2222 0.39 582 0.54 703 0.70 810 0.87 909 1.05 1000 1.24 1085 1.64 1242 2.06 1385 2.52 1517

2500 0.51 625 0.68 736 0.85 836 1.04 930 1.23 1016 1.43 1099 1.85 1250 2.30 1389 2.78 1517

3000 0.80 706 0.99 803 1.19 893 1.40 978 1.62 1058 1.84 1133 2.31 1275 2.81 1406 3.33 1529

3500 1.19 793 1.41 878 1.64 959 1.87 1036 2.12 1109 2.36 1179 2.88 1312 3.42 1435 3.99 1552

4000 1.69 882 1.94 958 2.20 1032 2.46 1102 2.73 1170 3.01 1234 3.58 1358 4.17 1474 4.78 1584

37°F / 44°F

31°F / 37°F

4500 2.34 974 2.62 1043 2.90 1109 3.19 1174 3.49 1236 3.79 1296 4.41 1412 -

5000 3.14 1067 3.44 1130 3.76 1191 4.08 1250 4.40 1308 4.73 1364 -

5500 4.11 1161 4.44 1219

1852 - - 0.34 519

4.78

0.49

1275

623

-

0.66

-

713

-

0.85

-

795

-

1.05

-

870

-

1.47

-

-

1005

-

-

1.94

-

-

-

1126

-

-

-

2.44

-

-

-

1237

2222 0.28 424 0.43 537 0.61 634 0.79 721 0.99 800 1.20 872 1.65 1005 2.14 1123 2.67 1231

2500 0.35 447 0.52 553 0.71 646 0.90 730 1.11 806 1.33 877 1.81 1006 2.32 1123 2.87 1230

3000 0.53 492 0.72 588 0.93 674 1.15 752 1.38 824 1.62 892 2.13 1016 2.68 1129 3.27 1232

3500 0.76 542 0.98 878 1.21 707 1.45 780 1.71 848 1.97 912 2.52 1031 3.11 1140 3.74 1240

4000 1.07 594 1.31 673 1.57 746 1.83 814 2.11 878 2.39 939 2.99 1052 3.62 1156 4.28 1253

4500 1.45 649 1.72 721 2.00 789 2.29 852 2.59 912 2.90 969 3.54 1077 4.22 1177 4.92 1270

5000 1.92 706 2.22 771 2.52 834 2.84 894 3.16 950 3.50 1004 4.18 1107 4.90 1202 -

5500 2.50 767 2.81 824 3.14 882 3.49 938 3.83 991 4.19 1042 4.93 1140 -

6000 3.16 822 3.52 878 3.87 933 4.24 984 4.61 1035 5.00 1084 -

6500 3.96 881 4.34 934 4.72 984 -

4000

5000

-

-

-

-

0.97

1.51

507

560

1.25

1.84

583

626

1.56

2.19

-

654

688

-

1.89

2.56

-

719

748

-

2.24

2.95

-

781

804

-

-

3.77

-

-

-

908

-

-

-

4.67

-

-

-

-

1005

-

-

-

-

-

-

-

-

-

-

-

6000 1.94 559 2.29 620 2.66 679 3.06 734 3.46 787 3.89 838 4.79 935 5.75 1025 6.77 1110

end 250

350/400

350/400

350/400

start 400

start 400 start 400 e,f

G,H i,J,K

26°F / 32°F

23°F / 28°F

20°F / 24°F

- / 22°F

- / 20°F

100°F / -

96°F / -

87°F / 100°F

74°F / 85°F

65°F / 74°F

58°F / 66°F

52°F / 59°F

47°F / 54°F

100°F / -

87°F / 100°F

74°F / 85°F

65°F / 74°F

58°F / 66°F

52°F / 59°F

47°F / 54°F

43°F / 49°F

40°F / 46°F

100°F / -

87°F / 100°F

65°F / 74°F

52°F / 59°F

43°F / 49°F

37°F / 42°F

32°F / 37°F

29°F / 33°F

26°F / 30°F

24°F / 27°F

23°F / 26°F

7000 2.93 632 3.33 686 3.75 738 4.19 788 4.64 836 5.11 882 6.09 971 7.13 1055 8.22 1134

8000 4.24 707 4.69 755 5.16 802 5.64 847 6.14 891 6.65 933 7.72 1015 8.83 1093 10.00 1167

9259 6.40 804 6.91 846 7.45 887 7.99 927 8.55 966 9.12 1004 10.30 1079 11.52 1150 12.79 1218

10000 7.97 862 8.52 901 9.09 939 9.67 977 10.27 1014 10.87 1050 12.12 1120 13.41 1187 14.74 1252

- - - - 11111 10.79 949 11.40 985 12.03 1020 12.66 1054 13.31 1087 13.97 1121 -

2593 0.61 668 0.80 781 1.01 882 1.22 975 1.45 1061 1.69 1142 2.19 1290 2.73 1425 3.30 1550

2700 0.67 686 0.87 796 1.08 895 1.30 986 1.53 1071 1.78 1151 2.29 1297 2.84 1431 3.42 1555

2963 0.85 730 1.06 834 1.28 928 1.52 1015 1.76 1097 2.02 1174 2.56 1316 3.13 1446 3.74 1568

3500 1.30 826 1.54 917 1.80 1002 2.07 1081 2.34 1157 2.62 1228 3.22 1362 3.84 1486 4.50 1602

4000 1.86 918 2.13 1000 2.42 1078 2.71 1151 3.01 1221 3.32 1288 3.97 1414 4.65 1531 -

4500 2.57 1012 2.87 1087 3.18 1158 3.51 1226 3.84 1291 4.18 1353 4.88 1472 -

5000 3.44 1109 3.78 1177 4.12 1242 4.47 1305 4.84 1366 -

5500 4.50 1206 4.87 1269 - - - - - - -

-

-

-

-

-

-

-

-

-

-

-

-

-

- -

-

-

-

2593 0.43 479 0.62 585 0.84 679 1.09 764 1.35 841 1.64 1142 2.26 1046 2.94 1165 3.68 1275

2963 0.57 516 0.79 614 1.02 702 1.28 782 1.56 856 1.86 926 2.50 1053 3.20 1170 3.96 1277

3500 0.85 574 1.09 662 1.35 742 1.63 815 1.93 885 2.25 951 2.93 1072 3.66 1183 4.45 1287

4000 1.19 631 1.45 710 1.74 784 2.04 853 2.36 918 2.70 980 3.41 1096 4.19 1202 - -

4500 1.61 690 1.91 762 2.22 830 2.55 895 2.89 956 3.25 1014 4.00 1124 4.81 1226 -

5000 2.22 767 2.46 817 2.80 880 3.15 940 3.52 998 3.90 1053 4.70 1157 -

5500 2.77 813 3.12 874 3.49 933 3.87 989 4.25 1042 4.66 1095 -

6000 3.53 876 3.91 933 4.30 987 4.70 1040 -

6500 4.42 939 4.82 992 - -

- - - - 0.77

-

1.04

- -

639

-

-

-

-

-

-

-

-

774

-

-

-

2.36 891

-

-

-

-

-

-

-

995

-

-

-

-

4000 - - 1.07 533 1.37 609 1.69 679 2.03 742 2.40 802 3.18 910 4.04

997

1009 4.96

1090

1099

5000 1.37 515 1.69 590 2.04 658 2.41 721 2.79 779 3.19 835 4.05 937 4.98 1030 5.96 1117

-

-

-

-

-

4.00

6000 2.20 588 2.58 654 2.97 715 3.39 772 3.82 826 4.26 877 5.20 973 6.21 1061 7.26 1144

7000 3.34 665 3.77 723 4.22 778 4.68 830 5.16 879 5.65 927 6.68 1016 7.77 1099 8.90 1178

8000 4.84 744 5.33 796 5.83 845 6.34 893 6.87 938 7.41 982 8.53 1066 9.70 1144 10.92 1219

9000 6.75 824 7.29 871 7.85 917 8.41 960 8.99 1002 9.58 1043 10.80 1121 12.07 1194 13.37 1265

10000 9.13 906 9.72 948 10.33 990 10.95 1030 11.58 1069 12.22 1107 13.54 1180 14.90 1249 -

11000 12.01 988 12.66 1027 13.32 1065 14.00 1103 14.68 1139 -

11500 13.66 12.09 14.34 1067 - - - - - - -

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

①

Total static pressure should include external static pressure and accessory / option static pressure from Table 31.1. Unit internal resistance has been included in the unit performance tables.

②

Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed CFM / static pressures.

5-572.8

33

BloWer Performance data

table 34.1 - unit Performance tables ① ②

unit size

500/600

start 600 digit 16

G or H

500/600

start 600

end 500 i, J, K

500/600

start 500

700/800

start 800

700/800

start 800

700/800

end 700

840/960

end 840

840/960

end 840 l

G or H i, J, K l i, J, K l air temp total static Pressure inches "W.c.

0.25 0.50 0.75 1.00 1.25 1.50 2.00 2.50 3.00

rise cfm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm BHP rPm

120°F / -

106°F / -

3086 0.62 529 0.82 620 1.03 703 1.26 779 1.50 849 1.75 916 2.28 1038 2.84 1149 3.44 1252

3500 0.84 575 1.06 658 1.30 736 1.54 807 1.80 874 2.07 937 2.63 1054 3.23 1162 3.86 1262

100°F / 120°F 3704 0.97 598 1.20 678 1.45 753 1.70 822 1.97 887 2.25 949 2.83 1064 3.44 1170 4.09 1268

93°F / 111°F 4000 1.18 633 1.43 709 1.69 779 1.96 846 2.24 908 2.53 968 3.14 1080 3.78 1183 4.45 1279

82°F / 99°F

74°F / 89°F

67°F / 81°F

62°F / 74°F

/

120°F / -

100°F / 120°F

93°F / 111°F 4000 0.82 464 1.09 544 1.39 618 1.71 686 2.05 749 2.42 810

4500 1.61 693 1.88 762 2.17 827 2.46 889 2.77 948 3.09 1001 3.74 1110 4.43 1208

5000 2.13 755 2.43 818 2.75 878 3.07 936 3.40 991 3.74 1044 4.44 1145

5500 2.77 818 3.10 876 3.44 932 3.79 986 4.15 1038 4.51 1088

6000 3.53 882 3.89 936 4.25 988 4.63 1038

4.80

3086 0.46 401 0.69 496 0.95 580 1.23 657

1.54

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

/

- - - - -

89°F 5000 1.43 542 1.75 609 2.09 673 2.46 733 2.84 790 3.24 844 4.09 946 5.01 1041 - -

-

62°F 74°F 6000 2.31 624 2.68 682 3.07 738 3.48 791 3.91 842 4.35 891 5.29 984 6.28 1072 7.33 1155

53°F / 63°F

46°F / 56°F

41°F / 49°F

- / 44°F

- / 43°F

- / 40°F

- / 40°F

62°F / 74°F

53°F / 63°F

/

7000 3.51 709 3.94 760 4.38 809 4.84 857 5.31 903 5.80 947 6.82 1032 7.90 1113 9.03 1191

8000 5.09 797 5.57 842 6.07 886 6.58 928 7.10 970 7.64 1010 8.75 1089 9.92 1163 11.13 1235

9000 7.11 885 7.65 926 8.20 965 8.76 1001 9.33 1042 9.92 1079 11.13 1151 12.38 1220 13.69 1287

10000 9.62 975 10.21 1012 10.81 1048 11.43 1083 12.05 1118 12.69 1152 14.00 1218 15.35 1283 -

10400 10.77 1011 11.38 1046 12.01 1081 12.64 1115 13.29 1149 13.95 1182 15.30 1247

11000 12.66 1065 13.31 1099 13.97 1132 14.64 1164 15.32 1197 16.01 1228 17.42 1290

11111 13.04 1075 13.69 1109 14.36 1141 15.03 1174 15.72 1205 16.41 1237 17.83 1298

6000 1.69 512 1.97 565 2.26 615 2.57 664 2.89 710 3.23 755 - -

7000 2.57 580 2.89 626 3.22 671 3.56 714 3.92 756 4.29 797 5.06 874

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

41°F 49°F 9000 5.21 721 5.60 758 6.01 795 6.43 830 6.86 864 7.30 898 8.21 964 9.16 1027 10.14 1088

- / 44°F

- / 43°F

- / 40°F

- / 40°F

86°F / 99°F

/

10000 7.04 793 7.48 827 7.93 860 8.39 892 8.85 924 9.33 955 10.31 1016 11.33 1074 12.38 1131

10400 7.88 823 8.34 855 8.80 887 9.28 918 9.76 949 10.25 979 11.26 1038 12.31 1095 13.38 1150

11000 9.27 866 9.75 897 10.24 927 10.74 957 11.24 986 11.76 1015 12.81 1071 13.90 1126

11111 9.54 874 10.03 905 10.52 935 11.02 964 11.53 993 12.05 1022 13.12 1078 14.21 1132

120°F / -

115°F / -

4321 1.51 685 1.80 760 2.11 830 2.43 896 2.77 958 3.13 1018 3.88 1131 4.69 1236

4500 1.68 708 1.98 780 2.30 847 2.63 912 2.98 973 3.34 1032 4.11 1142 4.94 1245

105°F / 120°F 4938 2.15 763 2.48 89 2.82 893 3.17 953 3.54 1011 3.93 1066 4.74 1172 - -

104°F / 119°F 5000 2.23 770 2.55 836 2.90 899 3.26 959 3.63 1016 4.02 1072 4.83 1176 - -

94°F / 108°F 5500 2.89 834 3.25 895 3.62 953 4.00 1009 4.40 1063 4.81 1116

965

- - -

-

-

-

-

-

-

-

-

-

-

-

-

- -

- -

-

-

- - - - - - - - - - - - - - - -

-

-

-

-

-

-

6000 3.68 900 4.06 956 4.46 1010 4.87 1062 -

91°F

120°F - 4321 0.87 443 1.14 421 1.42 591 1.72 657 2.04 717 2.37 774 3.08 879 3.84 974 4.65 1063

104°F / 119°F 5000 1.26 488 1.55 558 1.87 623 2.20 683 2.54 740 2.90 794 3.66 894 4.47 985 5.33 1071

86°F 99°F 6000 2.02 558 2.36 619 2.73 677 3.10 731 3.49 782 3.89 832 4.73 924 5.62 1010 6.55 1091

65°F / 74°F

58°F / 66°F

8000 4.44 707 4.89 755 5.35 801 5.82 845 6.30 888 6.79 930 7.81 1009 8.87 1085 9.96 1156

9000 6.19 784 6.69 827 7.20 869 7.72 909 8.25 949 8.79 987 9.90 1061 11.04 1131 12.23 1199

52°F / 59°F 10000 8.36 861 8.91 901 9.47 939 10.04 976 10.62 1012 11.21 1048 12.42 1117 13.66 1183 14.93 1246

47°F / 54°F 11000 11.00 940 11.60 976 12.22 1011 12.84 1045 13.47 1079 14.11 1112 15.41 1176 16.74 1238 -

43°F / 49°F 12000 14.16 1019 14.81 1052 15.48 1085 16.15 1117 16.83 1148 17.52 1179 18.92 1239

1159

- - -

- - - - - - - - - - - -

-

-

65°F 74°F 8000 3.26 566 3.60 611 3.95 654 4.31 696 4.67 736 5.05 774 5.84 848 6.66 918 7.51 984

58°F 66°F 9000 4.54 626 4.92 667 5.30 706 5.70 744 6.10 780 6.52 816 7.37 885 8.25 950 9.17 1012

52°F / 59°F 10000 6.13 687 6.54 724 6.97 760 7.40 794 7.85 828 8.30 861 9.22 925 10.17 987 11.15 1046

47°F / 54°F 11000 8.06 749 8.52 782 8.98 815 9.45 847 9.93 879 10.42 910 11.41 969 12.43 1027 13.48 1083

47°F / 54°F 11050 8.17 752 8.62 785 9.09 818 9.56 850 10.04 881 10.53 912 11.53 972 12.56 1029 13.61 1084

43°F / 49°F 12000 10.37 811 10.86 842 11.37 872 11.88 902 12.40 931 12.92 960 13.99 1016 15.08 1070 16.20 1123

40°F / 46°F 13000 13.09 873 13.63 902 14.17 930 14.72 958 15.27 986 15.83 1013 16.98 1065 18.14 1116 19.33 1166

- / 42°F

/

14000 16.26 936 16.83 963 17.41 989 18.00 1015 18.59 1041 19.19 1066

14500 18.02 968 18.61 994 19.21 1019 19.82 1045 - - - -

-

-

-

-

-

-

-

-

-

-

- 6481 2.72 630 3.09 685 3.48 736 3.88 785 4.30 832 4.72 876 5.60 960 6.52 1038 7.48 1112

- / 41°F

120°F

-

-

111°F - 7000 3.36 672 3.76 723 4.17 772 4.60 818 5.04 863 5.49 905 6.42 986 7.38 1061 8.39 1133

105°F / 120°F 7407 3.93 705 4.35 754 4.79 800 5.23 845 5.69 888 6.16 929 7.13 1007 8.13 1081 9.17 1151

97°F / 111°F 8000 4.87 754 5.33 799 5.90 843 6.27 885 6.76 926 7.26 965 8.28 1040 9.33 1111 10.43 1179

86°F / 99°F 9000 6.80 837 7.31 878 7.83 918 8.36 956 8.90 994 9.44 1030 10.56 1100 11.71 1166 12.90 1230

78°F / 89°F 10000 9.20 921 9.76 958 10.33 995 10.91 1030 11.50 1065 12.10 1099 13.32 1164 14.56 1226

70°F / 80°F 11050 12.28 1010 12.89 1044 13.52 1078 14.16 1110 14.80 1142 15.45 1173 16.77 1234

65°F / 74°F 12000 15.60 1091 16.27 1123 16.95 1154 17.63 1184 18.32 1214 19.02 1243

62°F / 71°F 12500 17.58 1134 18.27 1164 18.97 1194 19.69 1224 -

1177

- - -

-

-

-

-

-

-

-

-

-

-

-

-

-

- -

-

-

-

86°F 99°F 9000 5.01 675 5.40 715 5.80 753 6.21 789 6.62 825 7.05 859 7.91 925 8.81 988 9.73 1048

78°F / 89°F 10000 6.78 742 7.21 778 7.64 812 8.09 846 8.54 879 9.00 911 9.95 973 10.91 1032 11.91 1088

70°F / 80°F 11050 9.04 812 9.51 845 9.99 877 10.48 908 10.97 939 11.47 968 12.50 1026 13.54 1081 14.61 1135

65°F / 74°F 12000 11.48 876 12.00 907 12.51 937 13.04 966 13.57 994 14.11 1022 15.20 1076 16.32 1129 17.46 1179

60°F / 68°F 13000 14.50 945 15.05 973 15.62 1000 16.18 1028 16.75 1054 17.33 1081 18.50 1132 19.70 1181

- / 63°F 14000 18.02 1013 18.61 1039 19.21 1065 19.82 1091 - - - - - - - -

-

-

-

-

①

Total static pressure should include external static pressure and accessory / option static pressure from Table 31.1. Unit internal resistance has been included in the unit performance tables.

②

Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed CFM / static pressures.

34

5-572.8

BloWer sHeave assemBly data adjusting the Blower drive setting

Based on the Sheave Arrangement, Tables 35.1 through 36.5 give the Sheave Assembly numbers used on units that include a blower. The Sheave Arrangement is Digit 19 and is found on the unit Model Identification Plate. The Sheave Assembly describes the motor and blower sheave size and bore as well as the belt provided.

To determine how many turns open the motor sheave should be set for:

1. Follow the Selection Procedure found on pages 29 and 30 to determine what blower rpm is required to meet the job

specifications.

figure 35.1 - Blower section

EXTENDED

GREASE

LINES

2. Locate the unit Model Identification Plate and note Digit 16 and Digit 19 of the model number. Digit 16 is the Blower

Size and Type and Digit 19 is the Sheave Arrangement.

3. Once the Blower Size and Type (Digit 16) is known, enter the proper Sheave Arrangement table.

4. Use the Sheave Arrangement (Digit 19) to determine the

Sheave Assembly provided.

5. Use Table 37.1 and the Sheave Assembly number to determine the required turns open to achieve the desired blower rpm.

6. Set the motor sheave as described in Blower Adjustments.

ADJUSTABLE

MOTOR

SHEAVE MOTOR

FILTER

RACk

EXTENDED

GREASE LINE

ZERk FITTINGS

1/4" PERIMETER

GASkETED

BLOWER

CONNECTION

CONVENIENCE

OUTLET

BLOWER DOOR

SAFETY SWITCH

BOTTOM

SUPPORTED

BLOWER AND

MOTOR

DIRECT

DRIVE

DAMPER

ACTUATOR

Blower sheave assembly numbers table 35.1 - digit 16 = a or B (9-7 Blower units)

motor frame 656-1001 978-1265 rPm range

1150-1561 1526-1858 1763-2147

size

Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly

48 A 3H35125B1 C 3H35125B3

56 B 3H35125B2 D 3H35125B4 F 3H35125B6 H 3H35125B8 J 3H35125B10

143 or 145 E 3H35125B5 G 3H35125B7 I 3H35125B9 k 3H35125B11

table 35.2 - digit 16 = c or d (9-9 Blower units)

motor frame 656-1001 978-1265 rPm range

1150-1561 1526-1858 1763-2147

size

Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly

48 A 3H35126B1 C 3H35126B3

56 B 3H35126B2 D 3H35126B4 F 3H35126B6 I 3H35126B9 L 3H35126B12

143 or 145

182 or 184

E 3H35126B5 G 3H35126B7 J 3H35126B10 M 3H35126B13

H

3H35126B8

k 3H35126B11 N

3H35126B14

5-572.8

35

BloWer sHeave assemBly data

Blower Sheave Assembly Numbers (Con’t) table 36.1 - digit 16 = e or f (12-12 Blower units)

motor frame 468-715 644-874 rPm range

863-1078 1029-1332 1150-1438 1327-1659

size

Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly

48 A 3H35127B1

56 B 3H35127B2 C 3H35127B3 F 3H35127B6

143 to 145

Q 3H35127B17

D 3H35127B4 G 3H35127B7 I 3H35127B9 L 3H35127B12

182 or 184

213 or 215

E 3H35127B5 H 3H35127B8 J 3H35127B10 M 3H35127B13 O 3H35127B15 k 3H35127B11 N

3H35127B14

P 3H35127B16

table 36.2 - digit 16 = G or H (15-15 Blower units)

motor frame 410-625

rPm range

568-771 767-958 934-1136 1136-1380

size

Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly

48 A 3H35128B1

56 B 3H35128B2 D 3H35128B4 G 3H35128B7 O 3H35128B15

143 to 145 C 3H35128B3 E 3H35128B5 H 3H35128B8 J 3H35128B10

182 or 184

213 or 215

F 3H35128B6 I 3H35128B9 k 3H35128B11 M 3H35128B13

L 3H35128B12 N

3H35128B14

table 36.3 - digit 16 = i or J (18-18 Blower units under 15 Hp motor)

motor frame 491-649 586-744 rPm range

682-821 821-1009 995-1161 1101-1285

size

Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly

56 A 3H35129B1

143 or 145

182 to 184

B

C 3H35129B3 F 3H35129B6 I 3H35129B9 k 3H35129B11 O 3H35129B15

213 or 215

254

256

D 3H35129B4

3H35129B2 E 3H35129B5 H 3H35129B8

G 3H35129B7 J 3H35129B10 L 3H35129B12 P 3H35129B16 S 3H35129B19

M 3H35129B13 Q

3H35129B17

T 3H35129B20

N 3H35129B14 R 3H35129B18 U 3H35129B21

table 36.4 – digit 16 = K (18-18 Blower units with 15 Hp motor & up)

motor frame 826-1009

rPm range

995-1161 1101-1285 1232-1438

size

Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly

254 A 3H35130B1 C 3H35130B3 E 3H35130B5

256 B 3H35130B2 D 3H35130B4 F 3H35130B6

284 G 3H35130B13 I 3H35130B15 k 3H35130B17 M 3H35130B19

286 H 3H35130B14 J 3H35130B16 L 3H35130B18 N 3H35130B20

table 36.5 - digit 16 = l (20-18 Blower units)

rPm range

motor frame 491-649 626-765 765-901 901-1059 995-1161 1101-1285

size

Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly Digit 19 Sheave Assembly

143 or 145

182 to 184

213 or 215

254

A

B

3H36622B1 C 3H36622B3

3H36622B2

D 3H36622B4 F 3H36622B6 L 3H36622B12

E 3H36622B5 G 3H36622B7 M 3H36622B13 R 3H36622B18

H 3H36622B8 N 3H36622B14 S 3H36622B19 W 3H36622B23

256 I 3H36622B9 O 3H36622B15 T 3H36622B20 X 3H36622B24

284 J

286 k 3H36622B11 Q 3H36622B17 V 3H36622B22 Z 3H36622B26

36

5-572.8

BloWer sHeave assemBly data table 37.1 - Blower sheave assembly settings

sheave assembly 0 0.5

1 1.5

2 turns open

2.5

3 3.5

4 4.5

5

3H35125B1-2

3H35125B3-5

3H35125B6-7

3H35125B8-9

Blower rPm

1001 966 932 897 863 828 794 759 725 690 656

1265 1236 1208 1179 1150 1121 1093 1064 1035 1006 978

1561 1520 1479 1438 1396 1355 1314 1273 1232 1191 1150

1858 1825 1791 1758 1725 1692 1659 1625 1592 1559 1526

3H35125B10-11 2147 2108 2070 2032 1993 1955 1917 1878 1840 1802 1763

3H35126B1-2

3H35126B3-5

3H35126B6-8

3H35126B9-11

1001 966 932 897 863 828 794 759 725 690 656

1265 1236 1208 1179 1150 1121 1093 1064 1035 1006 978

1561 1520 1479 1438 1396 1355 1314 1273 1232 1191 1150

1858 1825 1791 1758 1725 1692 1659 1625 1592 1559 1526

3H35126B12-14 2147 2108 2070 2032 1993 1955 1917 1878 1840 1802 1763

3H35127B1-2 715 690 665 641 616 591 567 542 518 493 468

3H35127B3-5

3H35127B6-8

874 851 828 805 782 759 736 713 690 667 644

1078 1057 1035 1013 992 970 949 927 906 884 863

3H35127B9-11 1332 1301 1271 1241 1211 1180 1150 1120 1089 1059 1029

3H35127B12-14 1438 1409 1380 1351 1323 1294 1265 1236 1208 1179 1150

3H35127B15-16 1659 1625 1592 1559 1526 1493 1460 1426 1393 1360 1327

3H35127B17 1332 1301 1271 1241 1211 1180 1150 1120 1089 1059 1029

3H35128B1-3

3H35128B4-6

625 604 582 561 539 518 496 474 453 431 410

771 751 731 710 690 670 649 629 609 589 568

3H35128B7-9 958 939 920 901 882 863 843 824 805 786 767

3H35128B10-12 1136 1116 1096 1076 1055 1035 1015 994 974 954 934

3H35128B13-14 1380 1355 1331 1306 1281 1257 1232 1208 1183 1158 1136

3H35128B15 1136 1116 1096 1076 1055 1035 1015 994 974 954 934

3H35129B1-3

3H35129B4-7

649 633 617 601 586 570 554 538 522 506 491

744 728 712 696 681 665 649 633 617 601 586

3H35129B8-10 821 807 793 779 765 751 737 723 709 696 682

3H35129B11-14 1009 991 973 954 936 918 899 881 863 844 821

3H35129B15-18 1161 1144 1128 1111 1095 1078 1062 1045 1028 1012 995

3H35129B19-21 1285 1266 1248 1230 1211 1193 1174 1156 1138 1119 1101

3H35130B1-2

3H35130B3-4

3H35130B5-6

3H35130B13-14

1009 991 973 954 936 918 899 881 863 844 826

1161 1144 1128 1111 1095 1078 1062 1045 1028 1012 995

1285 1266 1248 1230 1211 1193 1174 1156 1138 1119 1101

974 960 946 932 918 904 890 876 863 849 835

3H35130B15-16 1161 1144 1128 1111 1095 1078 1062 1045 1028 1012 995

3H35130B17-18 1285 1266 1248 1230 1211 1193 1174 1156 1138 1119 1101

3H35130B19-20 1438 1417 1396 1376 1355 1335 1314 1294 1273 1253 1232

3H36622B1-2 649 633 617 601 586 570 554 538 522 506 491

3H36622B3-5

3H36622B6-11

765 751 737 723 709 696 682 668 654 640 626

901 888 875 863 850 837 824 811 798 785 765

3H36622B12-17 1059 1044 1029 1014 999 984 968 953 938 923 901

3H36622B18-22 1161 1144 1128 1111 1095 1078 1062 1045 1028 1012 995

3H36622B23-26 1285 1266 1248 1230 1211 1193 1174 1156 1138 1119 1101

5-572.8

37

BloWer sHeave assemBly data

9

10

11

12

13

14

15

5

6

3

4

7

8

9

10

11

12

13

14

15

16

17

1

2

5

6

3

4

7

8

8

9

6

7

10

11

12

13

14

1

2

8

9

6

7

10

11

3

4

1

2

5

3

4

1

2

5

table 38.1 - Blower sheave assembly components

sheave assembly

Prefix

3H35125

3H35126

3H35127

3H35128

Suffix

Browning

Belt # motor sheave

Pitch dia

(in.)

5

5.6

5.6

5.2

5.6

5.2

5.6

2.9

3.8

3.8

3.8

5

5

4.4

4.4

5.2

5

5

5.2

5

5.6

4.4

2.9

2.9

3.8

3.8

3.8

5

5

5

3.8

3.8

3.8

5.6

5.6

5.6

5.6

5.6

5.6

2.9

2.9

3.8

3.8

5.6

5.6

5.6

5.6

2.9

2.9

4.4

4.4

4.4

2.9

2.9

4.4

4.4

4.4

1.125

0.875

1.125

1.375

1.125

1.375

0.625

0.875

0.625

0.875

1.125

0.625

0.875

0.875

1.125

1.375

0.875

1.125

1.375

0.625

0.875

1.125

0.625

0.875

1.125

1.125

1.375

0.625

0.5

0.625

0.625

0.875

1.125

0.625

0.875

1.125

0.625

0.875

1.125

0.5

0.625

0.5

0.625

0.5

0.625

0.875

0.625

0.875

0.625

0.875

0.625

0.875

0.5

0.625

0.5

0.625

0.875

Blower sheave

Bore

(in.)

5

6

4.2

5.2

4.5

5

6

4.2

5.2

4.5

7

7.5

8

5.7

6.7

6

6

6.2

5.2

5.7

8

8.5

9

8.5

8

7

6.5

8.5

0.75

0.75

1

1

A54

A53

A54

A54

A52

A52

A53

A48

A50

A50

A52

A53

A52

A43

A45

A49

A45

A47

A49

A45

A48

A43

A47

A48

A46

A45

A47

A48

A48

A50

A34

A34

A36

A38

A38

A40

A37

A37

A39

A42

A43

A31

A31

A35

A35

A34

A34

A30

A31

A34

A35

A35

A33

A34

A37

A38

A38

38

5-572.8

sheave assembly

Prefix

3H35129

3H35130

3H36622

Suffix

8

9

6

7

4

5

2

3

18

19

20

1

14

15

16

17

14

15

16

10

11

12

13

21

22

23

24

17

18

19

20

25

26

1

2

20

21

16

17

18

19

5

6

3

4

13

12

13

14

15

10

11

8

9

5

6

7

3

4

1

2

Browning

Belt # motor sheave

Pitch dia

(in.)

4.7

5.5

6

6

4.1

4.1

4.1

5.5

7

7

7

4.1

7

7

7

7

6

6

7

7

7

5.3

5.9

7

7

7

7

7

7

7

7

7

7

7

7

5.5

5.5

7

7

7

7

7

7

7

7

7

5.5

5.5

5.5

7

5.9

5.9

5.9

5.3

4.1

4.1

4.1

4.7

4.7

4.7

5.5

1.125

0.875

1.125

1.375

1.125

1.375

1.625

1.625

1.875

1.875

1.875

1.875

1.875

1.875

1.875

0.875

1.875

1.875

1.125

1.375

1.625

1.625

1.875

1.875

1.375

1.625

1.625

1.875

1.875

1.625

1.625

1.875

1.875

1.375

1.625

1.625

1.375

1.625

1.625

1.625

1.625

0.875

1.125

1.375

1.125

1.375

1.625

1.625

1.125

1.625

1.625

1.625

1.625

1.875

0.625

0.875

1.125

0.625

0.875

1.125

1.375

Qty (2) B82

Qty (2) B79

Qty (2) B79

Qty (2) B77

Qty (2) B77

Qty (2) B75

Qty (2) B75

B75

BX73

B72

B70

BX78

B74

BX75

Qty (2) BX82

Qty (2) BX82

Qty (2) B86

Qty (2) B86

B71

BX74

Qty (2) BX79

Qty (2) BX79

Qty (2) B83

Qty (2) B83

B77

Qty (2) B82

Qty (2) B82

Qty (2) B81

Qty (2) B81

Qty (2) B80

Qty (2) B80

Qty (2) B80

Qty (2) B80

B71

B71

B70

BX71

BX71

BX71

BX71

BX77

BX75

BX75

BX68

BX68

BX75

BX75

B73

B72

B78

B78

B70

B77

B77

Qty (2) B74

Qty (2) B74

Qty (2) B78

Qty (2) B78

Qty (2) B77

Qty (2) B77

Qty (2) B82

Blower sheave

Bore

(in.)

10.9

12.4

8.9

9.4

10.4

10.4

9.4

1

1.44

1.44

9.4

10.4

9.4

8.4

10.9

8.9

12.4

8.9

10.4

11.4

13.4

8.4

9.4

9.4

10.4

9.4

12.4

11.4

electrical data

Digit

14

E

F

C

D

G

A

B

total unit amp draw

The total unit amp draw is a combination of the motor, the control step down transformer, the power exhauster motor, and the evaporative cooler pump motor (or step down transformer for 208V/1Ph, 208V/3Ph, 460V/3Ph, or 575V/3Ph units) where applicable. The control step down transformer includes damper actuators, ignition controllers, gas valves, control relays, amplifiers, and motor starters.

Motor Amp Draw (Tables 39.2 to 40.2) =

Control Step Down Transformer Amp Draw (Table 39.1) =

Power Exhauster Motor Amp Draw (Table 39.1) =

Evaporative Cooler Amp Draw (Table 39.1) =

+ ____________

Total Amp Draw =

table 39.1 - unit amp draws

Supply

Voltage

115/60/1

208/60/1

230/60/1

208/60/3

230/60/3

460/60/3

575/60/3

0

0.00

0.00

0.00

0.00

0.00

0.00

0.00

Control Transformer Amp Draw

Digit 15 - Transformer

1

0.35

2

0.65

3

1.30

0.19

0.17

0.19

0.36

0.33

0.36

0.72

0.65

0.72

0.17

0.09

0.07

0.33

0.16

0.13

0.65

0.33

0.26

4

2.17

1.20

1.09

1.20

1.09

0.54

0.43

75-175

1.40

0.70

0.66

0.70

0.66

0.30

➀

0.24

➀

Power Exhauster Amp Draw

Digits 4-6 - Model Size

200-400

2.00

500-800

4.00

1.10

0.95

1.10

2.20

1.90

2.20

0.95

0.54

➀

0.43

➀

1.90

1.08

➁

0.87

➁

840-960

6.00

3.30

2.85

3.30

2.85

1.63

➂

1.30

➂

Evap Cooler

Amp Draw

Digit 22=B or D

1.00

1.20 j

0.50

1.20 j

0.50

0.54

➃

0.43

➃

➀

Amp draw is for a 250 VA transformer.

➁

Amp draw is for a 500 VA transformer.

➂

Amp draw is for a 750 VA transformer.

➃

Only include evaporative cooler amp draw for gravity vented models. For power vented models, the step down transformer used for the power exhauster motor also powers the evap cooler pump.

table 39.2 - motor data ➀ ➁ table 39.3 - motor data ➀ ➁

supply voltage

(digit 14) motor size

(digit 17) l

motor type

(digit 18) m

full load amp draw nema frame size

Efficiency

n

supply voltage

(digit 14) motor size

(digit 17) l

motor type

(digit 18) m

full load amp draw nema frame size

Efficiency

n

1/3

(A)

1/2

(B)

3/4

(C)

1

(D or P)

1-1/2

(E or Q)

2

(F or R)

3

(G or S)

5

(H or T)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

12.6

14.0

15.0

15.0

20.4

20.0

33.5

6.6

9.0

9.0

9.2

11.0

11.0

28.0

-

-

56

56H

56H

56H

145T

182T

184T

56

48Y

56

56

56

56

184T

-

n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

➀

Single phase motors are not rated for use with a variable frequency drive.

➁

Motors rated below 1hp have integral thermal overload protection. Motors rated

1hp and larger require the use of a motor starter for overload protection.

➂

Motor Sizes (Digit 17) A through H do not include a motor starter (D through H require a motor starter by others). All others include a motor starter.

➃

ODP = Open Drip Proof, TE = Totally Enclosed.

➄

Motor manufacturers typically do not list efficiency for single phase motors.

1

(D or P)

1-1/2

(E or Q)

2

(F or R)

1/3

(A)

1/2

(B)

3/4

(C)

1

(D or P)

1-1/2

(E or Q)

2

(F or R)

3

(G or S)

5

(H or T)

1/3

(A)

1/2

(B)

3/4

(C)

3

(G or S)

5

(H or T)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

7.5

7.5

10.2

10.0

16.8

14.0

20.0

19.5

5.5

6.3

7.0

3.3

2.5

4.5

4.6

5.4

10.0

10.8

17.4

14.6

22.0

21.5

5.4

6.2

6.9

7.8

7.8

4.0

4.3

-

-

5.5

56H

56H

145T

182T

184T

184T

184T

184T

56

48Y

56

56

56

56

56

56H

145T

182T

184T

184T

184T

184T

56

56

56H

56H

56H

56

56

-

-

56 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a

5-572.8

39

motor data

table 40.1 - motor data ➀ ➁

supply voltage

(digit 14) motor size

(digit 17) l

motor type

(digit 18) m

full load amp draw

1/3

(A or L)

1/2

(B or M)

3/4

(C or N)

1

(D or P)

1-1/2

(E or Q)

2

(F or R)

3

(G or S)

5

(H or T)

7-1/2

(I or W)

10

(J or X)

15

(k or Y)

20

(V or Z)

1/3

(A or L)

1/2

(B or M)

3/4

(C or N)

1

(D or P)

1-1/2

(E or Q)

2

(F or R)

3

(G or S)

5

(H or T)

7-1/2

(I or W)

10

(J or X)

15

(k or Y)

20

(V or Z)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

1.6

2.2

2.2

2.8

3.0

41.0

55.0

54.0

1.7

22.4

28.5

28.8

40.5

8.6

13.8

14.0

20.6

5.8

5.8

8.0

7.7

3.1

3.2

4.8

4.8

25.6

26.8

37.0

37.0

51.0

49.0

13.0

13.0

19.8

21.6

3.0

3.0

3.2

3.2

1.5

1.5

2.1

2.1

4.6

4.6

6.0

6.0

8.4

nema frame size

56

56

56

56

56

254T

256T

256T

56

182T

184T

184T

213T

213T

215T

215T

254T

143T

143T

145T

145T

145T

145T

182T

182T

184T

184T

213T

213T

215T

215T

254T

254T

256T

256T

56

56

143T

143T

56

56

56

56

145T

145T

145T

145T

182T

Efficiency

n

92.4%

93.0%

93.0% n/a n/a n/a n/a n/a n/a

89.5%

89.5%

89.5%

91.0%

91.7%

91.7%

91.7%

93.0%

85.5%

85.5%

86.5%

86.5%

86.5%

86.5%

89.5%

89.5%

89.5%

89.5%

91.0%

91.7%

91.7%

91.7%

93.0%

92.4%

93.0%

93.0% n/a n/a n/a n/a n/a n/a

85.5%

85.5%

86.5%

86.5%

86.5%

86.5%

89.5%

table 40.2 - motor data ➀ ➁

supply voltage

(digit 14) motor size

(digit 17) l

motor type

(digit 18) m

full load amp draw

1/3

(A or L)

1/2

(B or M)

3/4

(C or N)

1

(D or P)

1-1/2

(E or Q)

2

(F or R)

3

(G or S)

5

(H or T)

7-1/2

(I or W)

10

(J or X)

15

(k or Y)

20

(V or Z)

1/3

(A or L)

1/2

(B or M)

3/4

(C or N)

1

(D or P)

1-1/2

(E or Q)

2

(F or R)

3

(G or S)

5

(H or T)

7-1/2

(I or W)

10

(J or X)

15

(k or Y)

20

(V or Z)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP HE (2)

TE HE (6)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP (1)

TE (5)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

ODP HE (2)

TE HE (6)

1.1

1.3

1.3

1.1

0.9

0.8

-

-

18.5

19.0

25.5

24.0

9.9

10.8

12.8

13.4

4.0

3.9

6.5

6.4

2.4

2.4

2.9

2.9

1.4

1.5

1.6

1.6

0.8

0.8

1.1

1.1

15.1

14.8

19.6

19.6

7.2

7.7

10.5

10.4

3.2

3.2

5.2

5.1

1.8

1.9

2.4

2.3

nema frame size

56

56

143T

143T

56

56

-

-

213T

213T

215T

215T

254T

254T

256T

256T

145T

145T

145T

145T

182T

182T

184T

184T

56

56

143T

143T

56

56

56

56

213T

213T

215T

215T

254T

254T

256T

256T

145T

145T

145T

145T

182T

182T

184T

184T

➀

Motors rated 1hp and larger are inverter duty rated as standard.

➁

Three phase motors do not have thermal overload protection. Overload protection is required through the use of a motor starter or variable frequency drive.

➂

Motor Sizes (Digit 17) A through k and V do not include a motor starter (used with either a motor starter by others or variable frequency drive).

All others include a motor starter.

➃

ODP = Open Drip Proof, TE = Totally Enclosed, the added suffix HE indicates NEMA Premium Efficiency.

➄

Motor manufacturers typically do not list efficiency for three phase motors smaller than 1hp.

Efficiency

n n/a n/a

-

n/a n/a

85.5%

85.5%

91.0%

91.7%

91.7%

91.7%

93.0%

92.4%

93.0%

93.0%

86.5%

86.5%

86.5%

86.5%

89.5%

89.5%

89.5%

89.5% n/a n/a n/a n/a n/a n/a

85.5%

85.5%

91.0%

91.7%

91.7%

91.7%

93.0%

92.4%

93.0%

93.0%

86.5%

86.5%

86.5%

86.5%

89.5%

89.5%

89.5%

89.5%

40

5-572.8

dimensions - unit figure 41.1 - HBG/HBP outdoor Blower Package unit dimensions

Y

33.50

C

B

33.50

B

C

48.00

D

(Max.)

2.00

Qty (4) Drill Locator

Dimples for Field

Conduit Entry Holes

(spaced 2.0" apart)

34.25

2.32

Optional Rainhood

& Birdscreen

R

9.50

1.45

E (Height)

X

F (Width)

(Inside)

24.00

(Inside)

9.00

1.45

10.26

A

9.21

1

2

4.29

16.73

24.94

24.00

(Inside)

4.35

Return Air Duct Connection

1

2

S

500 - 800 model shown

Q

4.16

2.56

3

1.50

5.29

6.28

P/2

P Over Roof

1

K Inside

4

9.21

2

6.28

1.50

3.00

N

figure 41.2 - HdG/HdP outdoor downturn Package unit dimensions

29.32

33.50

B

C

Z

33.50

B

C

48.00

2.00

Qty (4) Drill Locator

Dimples for Field

Drilled Electrical

(spaced 2.0" apart)

2.32

Optional Rainhood

& Birdscreen

24.53

9.50

1.45

34.00

R

1.72

1.45

10.26

A

9.21

Fresh Air

Duct Connection

Q

4.16

4.27

1

2

4.29

16.73

24.94

1

2

T

500 - 800 model shown

2.03

24.00

4.35

Return Air Duct Connection

2.56

3

1.50

5.29

6.28

P/2

1

P Over Roof

K Inside

2

4

24.00

(Inside)

N

9.21

6.28

1.50

5.29

3.00

table 41.1 - HBG/HBP/HdG/HdP outdoor unit dimensions (all dimensions in inches)

type dimensions

size (digit 16) furnaces a

B ➄ c

d e f K n P Q

75

100/125

150/175

200/225

All

All

All

All

250/300 E, F, G, or H

350/400 E, F, G, or H

500/600 G or H

700/800 G or H

1

1

1 33.75 19.22 8.62 14.07 18.98 15.18 20.02 39.23 32.06 10.75 7.00 84.41 108.39 81.49 110.82 1/2

1 33.75 19.22 8.62 14.07 18.98 17.69 20.02 39.23 34.56 10.75 7.00 84.41 108.39 81.49 110.82 1/2

1 33.75 19.22 8.62 14.07 18.98 21.94 23.99 39.23 38.82 10.75 7.00 84.41 108.39 81.49 110.82 1/2

1 37.75 19.22 8.62 14.07 22.98 24.06 23.99 43.23 40.94 11.58 9.90 84.41 108.39 81.49 110.82 1/2

2

2

37.75 21.31 10.62 15.05 22.98 27.09 29.96 43.23 44.05 11.58 9.90 84.41 108.39 81.49 110.82 3/4

37.75 24.64 12.62 18.25 22.98 38.60 41.90 43.23 55.57 11.58 9.90 84.41 108.39 81.49 110.82 3/4

37.75 21.31 10.62 15.05 22.98 27.09 29.96 43.23 44.05 11.58 9.90 117.53 146.77 114.94 144.12 3/4

37.75 24.64 12.62 18.25 22.98 38.60 41.90 43.23 55.57 11.58 9.90 117.53 146.77 114.94 144.12 3/4

➀

For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➁

For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➂

For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➃

For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➄

For Gravity Vented Models, the combustion air/vent cap is required so only dimensions B, C and D apply. For Power Vented Models, the power exhauster discharge cover and inlet louvers are included so only dimensions Q and R apply.

5-572.8

41

dimensions - unit figure 42.1 - HBG/HBP outdoor Blower Package unit dimensions with Blower type i, J, K, or l

Y

E

C

B

47.27

29.74

36.58

P/2

P Over Roof

41.62

➅

2.00

6.56

2.32

R

1.72

3.00

1.45

10.26

9.50

1.45

34.00

34.00

37.85

Q

4.16

2.56

K Inside

9.00

9.21

1

1

2

4.29

16.73

24.94

2.03

1

2

S

500 - 800 model shown

4.35

3

1.50

5.29

6.28

2

4

9.21

3.00

1.50

5.29

6.28

43.23

figure 42.2 - HdG/HdP outdoor downturn Package unit dimensions with Blower type i, J, K, or l

Z

29.32

E

B

C

47.27

36.58

P/2

P Over Roof

41.62

24.53

R

1.72

3.00

1.45

10.26

9.50

1.45

2.00

6.56

29.74

Dimples for Field

Drilled Electrical

34.00

34.00

37.85

2.32

9.21

Q

4.16

2.56

1

K Inside

➅

4.27

1

2

1

4.29

16.73

24.94

2

T

500 - 800 model shown

2.03

Return Air

Duct Connection

4.35

3

1.50

5.29

6.28

2

4

9.21

3.00

1.50

5.29

6.28

43.23

table 42.1 - HBG/HPG/HdG/HdP outdoor unit dimensions with Blower i, J, K, or l (all dimensions in inches)

type Gas

size

250/300

I, J, or k 1

➄

d

➄

r s t y Z conn.

21.31 10.62 15.05 33.50 27.09 29.96 44.05 11.58 9.90 120.00 141.34 117.34 141.34 3/4

350/400

I, J, or k

500/600 I, J, k, or L

1

2

24.64 12.62 18.25 33.50 38.60 41.90 55.57 11.58 9.90 120.00 141.34 117.34 141.34

21.31 10.62 15.05 67.00 27.09 29.96 44.05 11.58 9.90 153.12 182.36 150.74 180.00

3/4

3/4

700/800 I, J, k, or L

840/960 I, J, k, or L

2

3

24.64 12.62 18.25 67.00 38.60 41.90 55.57 11.58 9.90 153.12 182.36 150.74 180.00 3/4

24.64 12.62 18.25 100.50 38.60 41.90 55.57 11.58 9.90 186.52 215.77 184.14 213.40 3/4

➀

For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➁

For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➂

For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➃

For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➄

For Gravity Vented Models, the combustion air/vent cap is required so only dimensions B, C and D apply. For Power Vented Models, the power exhauster discharge cover and inlet louvers are included so only dimensions Q and R apply.

➅

Applies to units with Digit 16 = L only.

42

5-572.8

dimensions - unit figure 43.1 - HcG/HcP outdoor cooling Package unit dimensions

105.49

24.00

33.50

B

C

48.00

D (Max.)

2.00

Dimples for Field

Drilled Electrical

Optional Rainhood

& Birdscreen

2.20

34.25

J (Height)

X

7.65

G

19.23

1.45

9.50

1.45

R

3.00

1.72

10.26

2.03

A

9.21

Fresh Air

Duct Connection

4.29

16.75

24.94

108.39

4.35

Q

4.16

2.56

5.29

1.50

6.28

P/2

P Over Roof

K Inside

24.00

(Inside)

N

9.21

6.28

1.50

3.00

5.29

figure 43.2 - HPG/HPP outdoor Packaged unit dimensions

134.82

29.32

24.00

48.00

C

D (Max.)

2.00

2.20

34.25

24.53

G

19.23

1.45

9.50

1.45

R

3.00

1.72

10.26

2.03

A

9.21

4.27

4.29

16.75

24.94

137.63

4.35

Optional Rainhood

& Birdscreen

Q

4.16

2.56

5.29

1.50

6.28

P/2

P Over Roof

K Inside

24.00

(Inside)

N

9.21

6.28

1.50

3.00

5.29

table 43.1 - HcG/HcP/HPG/HPP outdoor unit dimensions (all dimensions in inches)

model Blower type

size (digit 16) a

B ➄ c

d dimensions

G H J K n P Q

75

All

Gas

33.75 19.22 8.62 14.07 28.75 18.00 25.00 20.02 39.23 32.06 10.75 7.00 1/2

100/125

150/175

200/225

All

All

All

33.75 19.22 8.62 14.07 28.75 21.00 25.00 20.02 39.23 34.56 10.75 7.00 1/2

33.75 19.22 8.62 14.07 28.75 24.00 25.00 23.99 39.23 38.82 10.75 7.00 1/2

37.75 19.22 8.62 14.07 32.75 27.00 28.00 23.99 43.23 40.94 11.58 9.90 1/2

250/300 E, F, G, or H 37.75 21.31 10.62 15.05 32.75 30.00 28.00 29.96 43.23 44.05 11.58 9.90 3/4

350/400 E, F, G, or H 37.75 24.64 12.62 18.25 32.75 42.00 28.00 41.90 43.23 55.57 11.58 9.90 3/4

➀

For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➁

For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➂

For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➃

For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➄

For Gravity Vented Models, the combustion air/vent cap is required so only dimensions B, C and D apply. For Power Vented Models, the power exhauster discharge cover and inlet louvers are included so only dimensions Q and R apply.

5-572.8

43

dimensions - unit figure 44.1 - HcG/HcP outdoor cooling Package unit dimensions with Blower type i, J, or K

141.34

24.00

47.27

36.58

P Over Roof

P/2

Duct

Connection

7.65

D (Max.)

19.23

32.68

1.45

9.50

R

3.00

1.72

10.26

1.45

2.00

Dimples for Field

Drilled Electrical

Conduit Entry Holes

(spaced 2.0" apart)

34.00

34.00

37.85

2.32

9.21

Optional Rainhood

& Birdscreen

Q

4.16

2.56

K Inside

2.03

4.29

16.73

24.94

143.98

4.35

5.29

1.50

6.28

24.00

(Inside)

N

9.21

6.28

1.50

3.00

5.29

figure 44.2 - HPG/HPP outdoor Packaged unit dimensions with Blower type i, J or K

170.66

29.32

24.00

47.27

36.58

Downturn

Connection

4.27

24.53

D (Max.)

19.23

32.68

1.45

9.50

R

3.00

1.72

10.26

1.45

2.00

4.29

16.73

24.94

173.22

Dimples for Field

Drilled Electrical

Conduit Entry Holes

(spaced 2.0" apart)

34.00

2.03

34.00

37.85

2.32

Optional Rainhood

& Birdscreen

Q

4.16

2.56

9.21

Fresh Air

Duct Connection

4.35

1.50

5.29

6.28

P/2

P Over Roof

K Inside

24.00

(Inside)

N

9.21

6.28

1.50

3.00

5.29

table 44.1 - HcG/HcP/HPG/HPP outdoor unit dimensions (all dimensions in inches)

model Blower type

size

(digit 16) B ➄ c

d dimensions

f H K n P Q

➄

Gas

conn.

250/300

I, J, or k 21.31 10.62 15.05 27.09 30.00 29.96 43.23 44.05 11.58 9.90 3/4

350/400

I, J, or k 24.64 12.62 18.25 38.60 42.00 41.90 43.23 55.57 11.58 9.90 3/4

➀

For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➁

For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.

➂

For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➃

For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.

➄

For Gravity Vented Models, the combustion air/vent cap is required so only dimensions B, C and D apply. For Power Vented Models, the power exhauster discharge cover and inlet louvers are included so only dimensions Q and R apply.

44

5-572.8

dimensions - unit Base figure 45.1 - unit Base dimensions

A

C

To end of Unit

F

G

M M

B

J

E

Inside

6.28

Drill Locator Dimple for Field Drilled Gas

E

Inside

M

6.28

for Field Drilled Gas

Connection Entry

Hole Right Hand

Access Units

M

4.29

24.00

Inside

Supply Air Opening Return Air Opening

24.00

Inside

H

4.35

table 45.1 - HBG/HBP & HdG/HdP outdoor unit Base rail dimensions (all dimensions in inches)

model size

Blower type

(digit 16)

HBG/HBP a c

HdG/HdP a c dimensions

B e

HBG/HBP/HdG/HdP

75

100/125

150/175

200/225

All

All

All

All

84.41 81.49 113.63 110.82 34.85 19.52 78.66 53.72 1.53 32.00 6.23

84.41 81.49 113.63 110.82 37.36 19.52 78.66 53.72 1.53 34.50 7.49

84.41 81.49 113.63 110.82 41.61 23.49 78.66 53.72 1.53 38.75 7.63

84.41 81.49 113.63 110.82 43.71 23.49 78.66 53.72 1.53 40.85 8.69

250/300 E,F,G, or H 84.41 81.49 113.63 110.82 46.75 29.46

250/300

I, J, or k 120.00 117.34 149.22 146.66 46.75 29.46

78.66 53.72

114.23 84.29

350/400 E,F,G, or H 84.41 81.49 113.63 110.82 58.27 41.40

350/400

I, J, or k 120.00 117.34 149.22 146.66 58.27 41.40

78.66 53.72

114.23 82.29

1.53

1.28

1.53

1.28

43.89

43.89

55.41

55.41

7.21

7.21

7.00

7.00

500/600

G or H 117.53 114.94 146.77 144.12 46.75 29.46 78.66 53.72

500/600 I, J, k, or L 153.12 150.74 182.36 180.00 46.75 29.46 114.23 82.29

700/800

G or H 117.53 114.94 146.77 144.12 58.27

700/800 I, J, k, or L 153.12 150.74 182.36 180.00 58.27

840/960 I, J, k, or L 186.52 184.14 215.77 213.40 58.27

41.40

41.40

41.40

78.66 53.72

114.23 82.29

114.23 82.29

1.53

1.28

1.53

1.28

1.28

43.89

43.89

55.41

55.41

55.41

7.21

7.21

7.00

7.00

7.00

table 45.2 - HcG/HcP & HPG/HPP outdoor unit Base rail dimensions (all dimensions in inches)

HcG/HcP dimensions

HcG/HcP/HPG/HPP a c a c B e f G H J m

75

100/125

150/175

200/225

All

All

All

All

108.39 105.49 137.63 134.82 34.85 19.52 78.66 53.72 1.53 32.00 6.23

108.39 105.49 137.63 134.82 37.36 19.52 78.66 53.72 1.53 34.50 7.49

108.39 105.49 137.63 134.82 41.61 23.49 78.66 53.72 1.53 38.75 7.63

108.39 105.49 137.63 134.82 43.71 23.49 78.66 53.72 1.53 40.85 8.69

250/300 E,F,G, or H 108.39 105.49 137.63 134.82 46.75 29.46 78.66 53.72

250/300

I, J, or k 143.98 141.34 173.22 170.66 46.75 29.46 114.23 82.29

350/400 E,F,G, or H 108.39 105.49 137.63 134.82 58.27 41.40 78.66 53.72

350/400

I, J, or k 143.98 141.34 173.22 170.66 58.27 41.40 114.23 82.29

1.53

1.28

1.53

1.28

43.89

43.89

55.41

55.41

7.21

7.21

7.00

7.00

➀

Gas connection for 1st furnace. For Models 500-800 add 33.5” for second furnace gas connection.

For Model 840-960 add 33.50” and 67.00” for second and third furnace gas connections.

5-572.8

45

dimensions - roof curBs figure 46.1 - roof curb dimensions

Discharge Air Opening is for HDG/HDP/HPG/HPP models only

table 46.1 - HBG/HBP & HdG/HdP roof curb dimensions (all dimensions in inches)

model size

Blower type

(digit 16) a

HBG/HBP

B c d dimensions a

HdG/HdP

B c d e

HBG/HBP/HdG/HdP f G H

J ➀

75

100/125

150/175

200/225

All

All

All

All

88.77 76.77 -

88.77 76.77 -

88.77 76.77 -

88.77 76.77 -

250/300 E,F,G, or H 88.77 76.77

250/300

I, J, or k 124.61 112.61

350/400 E,F,G, or H 88.77 76.77

350/400

I, J, or k 124.61 112.61

-

-

-

-

-

-

-

-

- 117.98 105.98 -

- 117.98 105.98 -

- 117.98 105.98 -

- 117.98 105.98 -

117.98 105.98 -

-

-

-

-

-

39.33 27.33 3.97 19.52 74.84

41.84 29.84 5.22 19.52 74.84

46.18 34.18 5.41 23.49 74.84

48.22 36.22 6.43 23.49 74.84

51.25 39.25 4.96 29.46 74.84

153.83 141.63 105.98 35.85 51.25 39.25 4.96 29.46 110.41

117.98 105.98 - - 62.76 50.76 4.74 41.40 74.84

153.83 141.63 105.98 35.85 62.76 50.76 4.74 41.40 110.41

500/600

G or H 121.89 109.89 - - 151.10 139.10 105.98 33.12 51.25 39.25 4.96 29.46 74.84

500/600 I, J, k, or L 157.74 145.74 105.98 39.76 186.98 174.98 105.98 69.00 51.25 39.25 4.96 29.46 110.41

700/800

G or H 121.89 109.89 - - 151.10 139.10 105.98 33.12 62.76 50.76 4.74 41.40 74.84

700/800 I, J, k, or L 157.74 145.74 105.98 39.76 186.98 174.98 105.98 69.00 62.76 50.76 4.74 41.40 110.41

840/960 I, J, k, or L 191.14 179.14 105.98 73.16 220.39 208.39 105.98 102.41 62.76 50.76 4.74 41.40 110.41

table 46.2 - HcG/HcP & HPG/HPP roof curb dimensions (all dimensions in inches)

model size

Blower type

(digit 16) a

HcG/HcP

B c d dimensions a

HPG/HPP

B c d e

HcG/HcP/HPG/HPP f G H J

75

100/125

150/175

200/225

All

All

All

All

112.74 100.74 -

112.74 100.74 -

112.74 100.74 -

112.74 100.74 -

- 141.98 129.98 100.74 29.24 39.33 27.33 3.97 19.52 74.84

- 141.98 129.98 100.74 29.24 41.84 29.84 5.22 19.52 74.84

- 141.98 129.98 100.74 29.24 46.18 34.18 5.41 23.49 74.84

- 141.98 129.98 100.74 29.24 48.22 36.22 6.43 23.49 74.84

250/300 E,F,G, or H 112.74 100.74 - - 141.98 129.98 100.74 29.24 51.25 39.25 4.96 29.46 74.84

250/300

I, J, or k 148.59 136.59 105.98 30.61 177.83 165.83 105.98 59.85 51.25 39.25 4.96 29.46 110.41

350/400 E,F,G, or H 112.74 100.74 - - 141.98 129.98 100.74 29.24 62.76 50.76 4.74 41.40 74.84

350/400

I, J, or k 148.59 136.59 105.98 30.61 177.83 165.83 105.98 59.85 62.76 50.76 4.74 41.40 110.41

➀

Gas connection for 1st furnace. For Models 500-800 add 33.5” for second furnace gas connection.

For Model 840-960 add 33.50” and 67.00” for second and third furnace gas connections.

46

5-572.8

dimensions - coolinG coils figure 47.1 - dX coil drawing

(All dimensions in inches)

Airflow Direction

rows 2 3 4 6

W 7.5 6 7.5 10

TOP VIEW

L

1.5

1.5

W

Coil for Right Hand Units

(Digit 9 = R)

Headers on opposite side for Left Hand Units

H

S

FRONT VIEW

1.5

FL

FH

Distributor Inlet (Liquid

Line) Connection(s)

(Second Inlet on Dual

Circuit Coils)

SIDE VIEW

Airflow

Direction

Suction Line Connections in direction of airflow

(Second Inlet on Dual Circuit Coils)

I

table 47.1 - dX coil dimensions

model size

75

100/125

150/175 cooling mBH

All

All

All

fH

27.5

27.5

27.5

200/225

Below 185 MBH

185 MBH & Up

32.5

32.5

H

30.5

30.5

30.5

34.5

s

1.5

1.5

1.5

0.5

21

24

27

dX - single circuit

➀

fl i l

18 25 21

28

31

34

34.5

0.5

27 34.5

30

250/300

350/400

Below 185 MBH

185 MBH & Up

Below 185 MBH

185 MBH & Up

32.5

32.5

32.5

32.5

34.5

34.5

34.5

34.5

0.5

0.5

0.5

0.5

30

30

42

42

37

37.5

49

49.5

➀

Single Circuit DX coils have 1 each Suction Line and Liquid Lines. Refer to AccuSpec for line size diameters.

➁

Dual Circuit DX coils have 2 each Suction Line and Liquid Lines. Refer to AccuSpec for line size diameters.

figure 47.2 - chilled Water coil drawing

(All dimensions in inches)

33

33

45

45

24

27

30

Airflow Direction

fl dX - dual circuit

➁

i l

16.25

26.5

19.25

19.5

23

29.75

33.25

22.5

28.5

25.5

28.5

40.25

35.75

38.75

50.5

28.5

31.5

43.25

Coil for Right Hand Units (Digit

9 = R)

Headers on opposite side for

Left Hand Units

H

1.5

TOP VIEW

L

S

FRONT VIEW

FL

FH

1.5

2.25

1.8

W

Return Water Line

Connection turned 90° in direction of airflow

Airflow

Direction

SIDE VIEW

V 2.25

I

1.8

table 47.2 - chilled Water coil dimensions

model size

fH

75

100/125

150/175

200/225

250/300

350/400

27

27

27

33

33

33

H

30

30

30

34.5

34.5

34.5

s

1.5

1.5

1.5

0.5

0.5

0.5

v

1.5

1.5

1.5

1

1

1

fl i l supply line return line

16.25 25.50 19.25 1.50 MPT

19.50 28.75 22.50 1.50 MPT

23.00 32.25 26.00 1.50 MPT

25.50 34.75 28.50 1.50 MPT

28.50 37.75 31.50 1.50 MPT

40.25 49.50 43.25 1.50 MPT

1.50 MPT

1.50 MPT

1.50 MPT

1.50 MPT

1.50 MPT

1.50 MPT

5-572.8

Supply Water Line

Connection turned 90° in direction of airflow

rows 4 6

W 7.5 10

47

dimensions - rainHood, remote Panel & evaPorative cooler figure 48.1 - rainhood and Birdscreen dimensions

1.09

31.19

.75

42.66 Approx.

44.56

1.14

32.71

figure 48.2 - evaporative cooling module

Top View

J-Box

Pump

1.25

A

1.14

table 48.1 - rainhood and Birdscreen dimensions (all dimensions in inches)

rainhood & Birdscreen

model size a

75 29.43

100/125 31.94

150/175 38.24

200/225 38.24

250/300 41.34

350/400 52.85

500/600 41.34

700/800 52.85

840/960 52.85

figure 48.3 - remote Panel dimensions

W/2 -1.50

3.00

W

Optional 1"

Pre-Filter

Rack

1.50

4.50

1.25

Side View

36.00

25.50

6" or 12"

Media

1/2" NPT Water Inlet

4.50

3.00

.25

Leveling Legs

H

table 48.3 - remote Panel dimensions

(all dimensions in inches)

remote Panel type a B c

Light and Switch Panels Only 7.06 - 2.81

Light and Switch Panels with Single Stage

Thermostat or Electronic Set Point Adjustor 10.60 3.53 4.58

Light and Switch Panels with

Two Stage Thermostat

13.09 6.03 5.82

table 48.2 - evaporative cooler dimensional, Performance, and Weight data (all dimensions in inches)

model size

75

100/125

150/175

200/225

250/300

250/300

350/400

350/400

500/600

500/600

700/800

700/800

840/960

Blower type

(digit 16)

All

All

All

All

E,F,G, or H

I, J, or k

E,F,G, or H

I, J, or k

G or H

I, J, k or L

G or H

I, J, k or L

I, J, k or L

maximum media face at max cfm

6" media ➀

face velocity (digit 23 = 3, 5, a, or c) (digit 23 = 4, 6, B, or d) dry operating

12" media ➀

dry operating

H W cooling cfm area (ft2) (ft/min) Weight Weight Weight Weight

34 30 2778 4.0 695 149 273 154 285

34 30

34 36

38 36

38 39

4000

5200

6000

6500

5.0

6.5

7.5

8.1

800

800

800

800

154

159

164

171

280

313

318

338

159

169

174

182

295

336

341

363

56 39

38 51

47 51

38 39

56 39

38 51

47 51

47 51

10400

8500

11050

6500

10400

8500

11050

11050

13.0

10.6

13.8

8.1

13.0

10.6

13.8

13.8

800

800

800

800

800

800

800

800

200

211

225

171

200

211

225

225

371

433

450

338

371

433

450

450

214

228

244

182

214

228

244

244

404

473

496

363

404

473

496

496

➀

All weights in pounds.

48

5-572.8

WeiGHts

table 49.1 - HBG/HBP Blower Package unit operating Weights ➀

model Blower type

size

HBG HBP

(digit 16) unit vent cap unit motor

75 All 429 16 439

100/125 All 464 16 474

150/175 All 501 16 511

200/225 All 573 16 588

250/300 E,F,G, or H 611

250/300 I, J, or k 860

26

26

626

875

350/400 E,F,G, or H 723

350/400 I, J, or k 922

35

35

500/600 G or H 929 52

500/600 I, J, k, or L 1178 52

738

1019

959

1208

700/800 G or H 1123 70

700/800 I, J, k, or L 1322 70

1153

1352

840/960 I, J, k, or L 1722 105 1767

12

17

8

15

12

17

17

filters dampers dampers double Wall fresh air f & ra (all sections)

6 26 46

6 26 46

38

38

6 29 52

6 29 52

8

15

33

33

60

60

43

46

46

93

38

38

33

33

38

38

38

70

70

60

60

70

70

70

53

96

46

93

53

96

96

rainhood

83

83

90

90

90

83

83

90

90

65

67

70

72

evap

table 49.2 - HcG/HcP cooling Package unit operating Weights ➀

model Blower type

HcG HcP

size (digit 16) unit vent cap unit motor filters dampers dampers double Wall

75 All 536 16 546 6 26 46

100/125 All 574 16 584 6 26 46

72

72

rainhood

65

67

150/175 All 616 16 626 6 29 52

200/225 All 699 16 714 6 29 52

250/300 E,F,G, or H 741

250/300 I, J, or k 990

26

26

756

1005

8

15

33

33

60

60

350/400 E,F,G, or H 872 35

350/400 I, J, or k 1071 35

887

1168

12

17

38

38

70

70

77

85

87

134

101

144

70

72

83

83

90

90

table 49.3 - HdG/HdP outdoor w/ downturn Package operating Weights ➀

model Blower type

size

75

HdG

(digit 16) unit vent cap

HdP unit motor

All 530 16 540 6 26 46 73

rainhood

65

100/125 All 568 16 578 6 26 46

150/175 All 611 16 621 6 29 52

200/225 All 692 16 707 6 29 52

250/300 E,F,G, or H 732 26 747 8 33 60

250/300 I, J, or k 981

350/400 E,F,G, or H 861

26

35

350/400 I, J, or k 1060 35

500/600 G or H 1050 52

996

876

1057

1080

15

12

17

8

33

38

38

33

60

70

70

60

500/600 I, J, k, or L 1299 52

700/800 G or H 1261 70

700/800 I, J, k, or L 1460 70

840/960 I, J, k, or L 1860 105

1329

1291

1490

1905

15

12

17

17

33

38

38

38

60

70

70

70

135

102

145

88

73

78

86

88

135

102

145

145

83

90

90

90

83

90

90

83

67

70

72

83

evap

table 49.4 - HPG/HPP outdoor Packaged operating Weights ➀

model Blower type

size

HPG

(digit 16) unit vent cap

HPP unit motor dampers dampers double Wall

75 All 637 16 647 6 26 46

100/125 All 678 16 688 6 26 46

150/175 All 726 16 736 6 29 52

200/225 All 818 16 833 6 29 52

250/300 E,F,G, or H 862 26

250/300 I, J, or k 1111 26

350/400 E,F,G, or H 1010 35

350/400 I, J, or k 1209 35

877

1126

1025

1306

8

15

12

17

33

33

38

38

60

60

70

70

107

107

112

125

129

176

150

193

①

All weights in pounds.

rainhood

83

83

90

90

65

67

70

72

evap

5-572.8

49

maintenance

WARNING

When servicing or repairing this equipment, use only factoryapproved service replacement parts. A complete replacement parts list may be obtained by contacting Modine Manufacturing

Company. 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

Do not attempt to reuse any mechanical or electrical controllers which have been wet. Replace defective controller.

IMPORTANT

To check most of the Possible Remedies in the troubleshooting guide listed in Table 52.1, refer to the applicable sections of the manual.

All heating equipment should be serviced before each heating season to assure proper operations. The following items may be required to have more frequent service schedule based on the environment in which the unit is installed, and the frequency of the equipment operation.

Blower assembly

The blower assembly includes the bearings, drive sheaves and belts.

Blower bearings should be checked and lubricated based on the blower manufacturer’s recommendations. Bearings should also be checked for any unusual wear and replaced if needed.

Drive sheaves should be checked at the same time the bearings are inspected. Check to make sure the sheaves are in alignment and are securely fastened to the blower and motor shafts.Belt tension should be rechecked shortly after the unit has been installed to check for belt stretching. After the initial start-up, monthly checks are recommended.

filters

If the unit is supplied with a dirty filter switch and light, clean or replace the filters any time the dirty filter light comes on.

Units which do not have a dirty filter warning light should have the filters checked monthly. Clean or replace if necessary. In dirty atmospheres, filter maintenance may be required more often.

figure 50.1 - filter replacement arrangement for

Blower size (digit 16) a, B, c, d, e, f, G and H

FILTER SPACER

B

B

C

75

C

B

B

B

100/125

B

B

▼

B

A

150/175

FILTER SPACER

A

50

A

A

A

A

A

A

A A

200/225 250/300

500/600

A = 20" X 25" FILTER

B = 16" X 25" FILTER

C = 15" X 25" FILTER

Filter Spacer to be inserted on non-access side of unit

A

A

C

C

A

A

figure 50.2 - filter replacement arrangement for Blower size (digit 16) i, J, K, and l

a d a a

NON-ACCESS

SIDE

FILTER

SPACER

a a

NON-ACCESS

SIDE

FILTER

SPACER

a a c

500/600

c a a c

A = 20'' x 25''

B = 16'' x 25''

C = 20'' x 16''

D = 15'' X 25''

a

B d

B a

cooling coil drain Pan and drain system

The drain pan, trap, and drain pipe must be cleaned regularly to avoid blockage that can reduce or stop water flow as follows:

1. At the beginning of the cooling season, inspect and clean the entire cooling coil cabinet and condensate drain pan to remove contaminants.

2. Inspect and clean the condensate drain trap and piping. The use of a cleanout opening at the top of the trap can help facilitate this maintenance.

3. Fill the trap with water to ensure proper operation and replace the cap on the cleanout opening to close the system.

4. During the end of cooling season shutdown of the system, disconnect and remove all water from the trap and drain to prevent freeze damage. If local building codes permit, the trap may be filled with an antifreeze solution.

5. If the unit is used year round, regularly inspect and clean the cooling coil cabinet, condensate drain pan, and trap/drain system to ensure proper function.

6. Depending on climate, freeze protection of the trap may be required during non-cooling days.

cooling coil maintenance

1. Periodically, inspect the coil for signs of corrosion and leaks.

Repair and replacement of the coil and the connecting piping, valves, etc., must be performed as needed by a qualified technician.

2. Should the coil surface need cleaning, caution should be exercised in selecting the cleaning solution as well as the cleaning equipment. Improper selection can result in damage to the coil and/or health hazards. Cleaning solutions must not be corrosive or cause damage to copper tube/aluminum fin coils. Clean the coil from the leaving air-side so that foreign material will be washed out of the coil rather than pushed further in. Be sure to carefully read and follow the cleaning fluid manufacturer’s recommendations before using any cleaning fluid.

3. For DX coils, replace the filter dryer(s) as needed.

4. For chilled fluid coils:

a. Maintain the circulated fluid free of sediment, corrosive products and biological contaminants.

b. Freeze Protection - During the winter, chilled water coils need to be protected against freezing. Two common methods are 1) blowing out the coils with air, or 2) flushing coils with inhibited glycol designed for corrosion protection in HVAC applications. Select an inhibited glycol solution that will protect the coil from the lowest possible temperatures that can occur at that locality.

5-572.8

electrical Wiring

The electrical wiring should be checked annually for loose connections or deteriorated insulation.

duct furnace

When providing annual maintenance for the duct furnace, keep the unit free from dust, dirt, grease and foreign matter. Pay particular attention to:

1. For HBG/HCG/HDG/HPG units, the combustion air intake and exhaust vent cap louvered openings. For HBP/HCP/

HDP/HPP units, the power exhauster discharge opening and the combustion air inlet louvers.

2. The burner ports and pilot burner orifices (avoid the use of hard, sharp instruments capable of damaging surfaces for cleaning these ports). To check the burner port and pilot burner orifice, see Burner and Pilot Assembly Removal.

3. The air shutters and main burner orifices (avoid the use of hard, sharp instruments capable of damaging surfaces for cleaning these orifices). To check the air shutters and main burner orifices, see for Manifold Assembly Removal.

The heat exchanger should be checked annually for cracks and discoloration of the tubes. If a crack is detected, the heat exchanger should be replaced before the unit is put back into service. If the tubes are dark gray, airflow across the heat exchanger should be checked to insure that a blockage has not occurred or the blower is operating properly.

Gas Piping & controls

The gas valves and piping should be checked annually for general cleanliness and tightness.

manifold assembly removal to remove the manifold (refer to figure 51.1):

1. Shut off gas and electric supply.

2. Remove the side access panel.

3. Disconnect gas manifold at ground union joint.

4. Remove the two screws holding the manifold to the heat exchanger support.

5. Slide the manifold through the manifold bracket.

6. Clean the orifices and adjust the air shutters as necessary.

7. Follow steps 3-6 in reverse to install the manifold assembly.

8. Turn on the electric and gas supply.

Tighten if necessary.

10. Install the side access panel.

figure 51.1 - manifold assembly removal

SERIAL

PLATE

ELECTRICAL

JUNCTION

BOX

GROUND

UNION

JOINT

MANIFOLD

BURNER SIDE

ACCESS PANEL

HEAT EXCHANGER

SUPPORT

Burner and Pilot assembly removal to remove the burner (refer to figure 51.2):

1. Shut off gas and electric supply.

2. Disconnect the pilot supply line from the gas valve.

(located in the electrical junction box). Feed the cable through the bushing in the bottom of the electrical junction box.

4. Remove the screws holding the burner side access panel.

Attached to the panel are the burner retaining pins that align the burner.

5. Slide the burner assembly out. The pilot is attached to the burner assembly.

6. Examine the burner and pilot assembly for cleanliness and/ or obstructions as necessary (see Duct Furnace for cleaning instructions). the burner, be certain that the rear burner slots are located properly on the burner retaining pins. Do not force the burner side access panel, it will not fit if the burner is not properly aligned.

8. Reconnect the ignition cable and pilot gas supply line.

9. Turn on the electric and gas supply.

figure 51.2 - Burner and Pilot assembly removal

5-572.8

PILOT

ASSEMBLY

IGNITION

CABLE

PILOT

SUPPLY LINE

HEAT

EXCHANGER

SUPPORT

AIR SHUTTERS

(NOT SHOWN)

ARE LOCATED

ON THE

MANIFOLD

51

service & trouBlesHootinG

WARNING

When servicing or repairing this equipment, use only factory-approved service replacement parts. A complete replacement parts list may be obtained by contacting Modine

Manufacturing Company. Refer to the rating plate on the unit for complete unit model number, serial number, and company address. Any substitution of parts or controls not approved by the factory will be at the owner’s risk.

CAUTION

Do not reuse any mechanical or electrical component which has been wet. Such component must be replaced.

IMPORTANT

To check most of the Possible Remedies in the troubleshooting guide listed in Table 52.1, refer to the applicable sections of the manual.

table 52.1 - troubleshooting

trouble

Pilot does not light

main burners do not light (Pilot is lit) lifting flames (see figure 53.1) yellow tipping

(With propane gas, some yellow tipping is always present.)

Possible cause

1. Main gas is off.

2. Power supply is off.

3. Air in gas line.

4. Dirt in pilot orifice.

5. Gas pressure out of proper range.

6. Pilot valve does not open.

a. Defective ignition controller.

b. Defective gas valve.

7. No Spark at ignitor.

a. Loose wire connections.

b. Pilot sensor is grounded.

c. Defective ignition controller.

8. Safety device has cut power.

1. Defective valve.

2. Loose wiring.

3. Defective pilot sensor

4. Defective ignition controller.

5. Improper thermostat wiring.

1. Too much primary air.

2. Main pressure set too high.

3. Orifice too large.

1. Insufficient primary air.

2. Dirty orifice.

3. Misaligned orifice.

Possible remedy

1. Open manual gas valve.

2. Turn on main power.

3. Purge gas line.

4. Check for plugged pilot orifice and clean with compressed air if necessary.

5. Adjust to a maximum of 14" W.C.

Minimum for Natural Gas - 6" W.C.

Minimum for Propane Gas - 11" W.C.

6. Check wiring for 24 volts to valve. a. Replace ignition controller. b. Replace gas valve.

7.

a. Check all ignition controller wiring.

b. Replace sensor if cracked or worn c. Replace ignition controller.

8. Check all safety devices (High limit, air flow proving switch, power exhauster centrifugal switch - HFP Models Only, gas pressure switches, etc.) Determine and correct problem. Reset if necessary.

1. Replace valve.

2. Check wiring to gas valve.

3. Replace pilot sensor.

4. Replace ignition controller.

5. Verify wiring compared to wiring diagram.

1. Reduce primary air.

2. Adjust to a maximum of 14" W.C.

3. Check orifice size with those listed on the serial plate.

1. Increase primary air.

2. Check orifices and clean with compressed air if necessary.

3. Check manifold, replace if necessary.

flashback floating flames (see figure 53.2)

1. Too much primary air.

2. Main pressure set too high.

3. Orifice too large.

1. Insufficient primary air.

2. Main pressure set too high.

3. Orifice too large.

4. Blocked vent cap.

1. Reduce primary air.

2. Adjust to a maximum of 14" W.C.

3. Check orifice size with those listed on the serial plate.

1. Increase primary air.

2. Adjust to a maximum of 14" W.C.

3. Check orifice size with those listed on the serial plate.

4. Clean louvers in vent cap.

52

5-572.8

service & trouBlesHootinG

trouble flame rollout (see figure 53.3) not enough Heat

Possible cause

1. Main pressure set too high.

2. Orifice too large.

3. Blocked vent cap.

1. Unit cycling on high limit. ➀ a. Obstructions/leaks in duct system.

b. Main pressure set too high.

c. Blower motor not energized.

too much Heat

Power exhauster motor will not start

(HfP models only)

d. Loose belt e. Blower speed too low.

f. Blocked/damaged venting system.

g. Air distribution baffle removed (high temperature rise units only).

h. Defective high limit switch.

2. Main pressure set too low.

3. Too much outside air.

4. Thermostat malfunction.

5. Gas controls wired incorrectly.

6. Unit undersized.

1. Thermostat malfunction.

2. Gas controls do not shut-off. a. Gas controls wired incorrectly.

b. Short circuit.

3. Main gas pressure set too high.

4. Defective gas valve.

1. Power supply is off.

2. No 24V power to thermostat.

3. Thermostat malfunction.

4. Defective power exhauster relay.

5. Defective power exhauster motor.

Possible remedy

1. Adjust to a maximum of 14" W.C.

2. Check orifice size with those listed on the serial plate.

3. Clean louvers in vent cap.

1.

a. Clean/correct duct system.

b. Adjust to a maximum of 14" W.C. c. Check/correct to insure blower motor operates within 45 seconds of when gas controls are energized.

d. Adjust belt tension.

e. Check/correct blower drive settings for proper rpm.

f. Check/correct venting system.

g. Replace air distribution baffle.

h. Replace high limit switch.

2. Adjust main gas pressure.

Minimum for Natural Gas — 6" W.C.

Minimum for Propane Gas — 11" W.C.

3. Adjust outside air damper to decrease outside air percentage (if possible).

4. Check/replace thermostat.

5. Check unit wiring against the wiring diagram.

6. Check design conditions. If unit is undersized, an additional unit(s) or other heat source must be added.

1. Check/replace thermostat.

2.

a. Check unit wiring against the wiring diagram.

b. Check for loose or worn wires.

3. Adjust to a maximum of 14" W.C.

4. Replace gas valve.

1. Turn on main power.

2. Check control transformer.

3. Check/replace thermostat.

4. Replace power exhauster relay.

5. Replace power exhauster motor.

➀

automatic reset High limit

The duct furnace comes standard with an automatic reset high limit switch that will shut-off the gas should the discharge air temperature become excessive. See Figure 19.1, indicator for the location of either the standard automatic or optional

49 manual reset high limit switch. The switch should operate only when something is seriously wrong with the unit operation.

Anytime the switch operates, correct the difficulty immediately or serious damage may result. If the switch cuts off the gas supply during normal operation, refer to the “Not Enough Heat” section of Service & Troubleshooting.

figure 53.1

lifting flame condition figure 53.2

floating flame condition figure 53.3

flame rollout appearance

5-572.8

53

model desiGnations model identification

Modine weatherproof duct furnace/make-up air units contain an AGA/CGA and ETL/ETL Canada certified weatherproof duct furnace. This duct furnace is combined with either a blower section, or a blower and/or cooling and/or downturn sections to make a complete make-up air or heating/ventilating/cooling unit that is ETL/ETL Canada certified. For this reason, two identification plates are used on these models. The serial

Plate is used to identify the duct furnace and its components.

The model identification Plate is used to identify the complete model, including blower, cooling, and/or downturn sections.

ordering

When servicing, repairing or replacing parts on these units, locate the model identification plate of the unit and always give the complete Model Number and Serial Number from the model identification plate. The model identification plate is located on the door of the electrical control box (See Figure 54.1). The part number for some common replacement parts are listed on the serial plate (See Figure 54.2) and the model identification plate

(See Figure 55.1). For a complete description of the model number, see Model Identification.

figure 54.2 - serial Plate figure 54.1 - serial Plate and model id Plate locations

SERIAL

PLATE

MODEL

IDENTIFICATION

PLATE

54

5-572.8

model desiGnations figure 55.1 - model identification Plate

HBG 75AFRHN10A1AA1AAA1A

115/208-230

115 60 1

60 1

8.47

6.6/3.0-3.3

9F20218

5H71790-

10.00

Modine Manufacturing Company

1500 Dekoven Ave., Racine, WI 53403

Phone: 800.828.4328

5H63081-20

5H58064-3

5H76183-31

figure 55.2 - HfG/HfP serial number designations ➀

s 09 17 09 36

serial numBer PrefiX

<blank> if standard

"S" if Special Product Order

series identity numBer control suPPlier

01-Robertshaw 09-White Rodgers

05-Honeywell 17-United Technologies

08-Fenwal

Gas valve suPPlier

01-Robertshaw 09-White Rodgers

05-Honeywell

10 0123 10000

sPo numBer

<blank> if standard

##### if Special Product Order

seQuential numBer

Varies - 0000 TO 9999

Each unit in a week has a unique number

year

Produced

WeeK

Produced

figure 55.3 - HBG/HBP/HcG/HcP/HdG/HdP/HPG/HPP

serial number designations ➀

serial number designations

motor vendor code

01 – Century

15 – Marathon etc.

fan or BloWer vendor code

10 – Lau

20 – Morrison etc.

series identity numBer

Identifies which series of controls were furnished on the unit.

01 10 201 01 02-1000

seQuence numBer year of manufacture

01 – 2001

02 – 2002 etc.

WeeK of manufacture

01 – 1st week of year

26 – 26th week of year

➀

Serial number format subject to change. When contacting the factory for replacement parts, always have the actual serial number ready from the unit(s).

5-572.8

55

start-uP cHecKlist

start-uP cHecKlist indirect Gas-fired HeatinG eQuiPment

Job Name:

Address:

Date:

Model No.:

City & State: Order No.:

Start-Up Check List “ALL ITEMS MUST BE CHECkED” Serial No.:

1. All shipping straps, braces, tie downs removed?

2. Unit installed level and secure?

3. Gas burner properly located and aligned?

4. Blower and motor alignment okay?

5. Bearings aligned and tight on shaft/bearing supports?

6. Electrical connections checked and secure?

7. Gas piping checked and tightened if necessary?

8. Any visible damage to unit?

Describe: ______________________________________________

If damaged, was the damage repaired?

9. Air inlet and discharge checked for obstructions?

10. Bearings checked for proper lubrication?

11. Filters in place and correct to direction of air flow?

12. Belt tension checked?

13. Electric supply to unit: ______ Volts, ______ Hz, ______ Phase

14. Gas supply to unit: ______ Natural, ______ Propane

15. Gas supply pressure to unit: ______ " W.C., ______ PSIG

16. Inlet and/or discharge dampers operating correctly?

17. Blower rotation correct?

18. Blower speed: Hi Speed ______ RPM, Lo Speed ______ RPM

19. Motor speed: Hi Speed ______ RPM, Lo Speed ______ RPM

20. Is unit noisy? Excessive vibration?

21. Motor voltage: L1 ______ V, L2 ______ V, L3 ______ V

22. Motor amps: L1 ______ Amp, L2 ______ Amp, L3 ______ Amp

23. High temperature limit control continuity checked?

24. Burner light off

Low Fire: Does entire burner light off?

Hi Fire: Burner pressure reading? ______ " W.C.

Is flame clean and stable?

Does flame modulate in response to temperature control(s)?

25. Gas input checked?

Input at maximum firing rate: __________ Btu/Hr

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

____ Yes

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

___ No

Input at minimum firing rate: -__________ Btu/Hr

26. Gas piping checked for and free of leaks?

27. Has wiring been verified to match the unit wiring diagram?

____ Yes ___ No

____ Yes ___ No

28. Have all the modes of the sequence of operation been verified and tested? ____ Yes ___ No

29. What optional and/or accessory control devices have been set?

Device: _______________ Setting: __________ (°F/psi/Inches W.C./etc.) ____ Yes ___ No

Device: _______________ Setting: __________ (°F/psi/Inches W.C./etc.) ____ Yes ___ No

Device: _______________ Setting: __________ (°F/psi/Inches W.C./etc.) ____ Yes ___ No

Customer/Owner instructed in operation and maintenance of unit? ____ Yes ___ No

Name of Person(s) Instructed: ______________________________________________________________

Comments: ____________________________________________________________________________

____________________________________________________________________________

Start-Up Company Name: _______________________________ Phone: __________________________

Signature: _______________________________________________________ Date: ________________

56

5-572.8

model nomenclature for system units

Weatherproof model nomenclature

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

PT UC V MBH HE DS AS ATR GT GV SS SV TR BB HP MT SA AC EC CC

1 - Product type (Pt)

H - Outdoor HVAC Unit

2 - unit configuration (uc)

B - Blower Package - Furnace & Blower

C - Cooling Package - Furnace, Blower, & Cooling Cabinet

D - Downturn Package - Furnace, Blower, & Downturn

P - Packaged Unit - Furnace, Blower, Cooling Cabinet, & Downturn

3 - venting (v)

G - Gravity P - Power

4,5,6 - furnace input rating (mBH) (output on 840 & 960)

100 - 100,000 Btu/Hr Input

175 - 175,000 Btu/Hr Input

250 - 250,000 Btu/Hr Input

400 - 400,000 Btu/Hr Input

500 - 500,000 Btu/Hr Input

600 - 600,000 Btu/Hr Input

840 - 1,050,000 Btu/Hr Input

960 - 1,200,000 Btu/Hr Input

7 - Heat exchanger/Burner/drip Pan material (He)

A - Aluminized Steel

S - 409 Stainless Steel Heat Exchanger/Burner

T - 409 Stainless Steel Heat Exchanger/Burner/Drip Pan

8 - development sequence designation (ds)

F - Single Stage M - 2-stage or Modulating

9 - access side (as)

R - Right Hand L - Left hand

10 - air temperature rise (atr)

H - High 60°-100°F

L - Low 20°-60°F

11 - Gas type (Gt)

N - Natural with ignition controller

P - Propane with ignition controller

12 - Gas valve (Gv)

1 - Single Stage

2 - Two Stage

4 - Electronic Modulation

6 - Electronic Modulation Slave

7 - Electronic Modulation 0-10 Vdc

External Input

5 - Electronic Modulation Master 8 - Electronic Modulation 4-20 mA

External Input

13 - additional safety switches (ss)

0 - No Switches (Standard)

1 - Low Gas Pressure Switch (Premium)

2 - High Gas Pressure Switch (Premium)

3 - High and Low Gas Pressure Switch (Premium)

14 - supply voltage (sv)

A - 115/60/1

B - 208/60/1

C - 230/60/1

D - 208/60/3

15 - transformer (tr)

1 - 40 VA

2 - 75 VA

3 - 150 VA

E - 230/60/3

F - 460/60/3

G - 575/60/3

4 - 250 VA

0 - None

16 - Blower size & Bearing type (BB)

A - 9-7 Spider Bearings G - 15-15 Spider Bearings

B - 9-7 Pillow Block Bearings H - 15-15 Pillow Block Bearings

C - 9-9 Spider Bearings I - 18-18 Spider Bearings under 15 Hp

D - 9-9 Pillow Block Bearings J - 18-18 Pillow Block Bearings under 15 Hp

E - 12-12 Spider Bearings k - 18-18 Pillow Block Bearings for 15 Hp & up

F - 12-12 Pillow Block Bearings L - 20-18 Pillow Block Bearings

17 - motor Horsepower (HP)

A - 1/3 Hp

B - 1/2 Hp

C - 3/4 Hp

D - 1 Hp

E - 1-1/2 Hp

F - 2 Hp

G - 3 Hp

H - 5 Hp

I - 7-1/2 Hp

J - 10 Hp k - 15 Hp

V - 20 Hp

18 - motor type (mt)

1 - ODP

2 - ODP - High Eff.

L - 1/3 Hp with Motor Starter

M - 1/2 Hp with Motor Starter

N - 3/4 Hp with Motor Starter

P - 1 Hp with Motor Starter

Q - 1-1/2 Hp with Motor Starter

R - 2 Hp Hp with Motor Starter

S - 3 Hp with Motor Starter

T - 5 Hp with Motor Starter

W - 7-1/2 Hp with Motor Starter

X - 10 Hp with Motor Starter

Y - 15 Hp with Motor Starter

Z - 20 Hp with Motor Starter

5 - TE

6 - TE - High Eff.

19 - sheave arrangement (sa)

A - (See Sheave Tables)

20,21 - air control (ac)

AA - RA Opening

BA - FA Opening

CA - FA & RA Openings

DA - FA Dampers w/ 2 pos motor (No RA)

EA - FA & RA Dampers w/ 2 pos motor

EQ - ASHRAE Cycle I - (“EA” with Warm-up Stat)

FA - FA Damper & RA Opening w/ 2 pos motor

GA - FA & RA Mod motor w/ 0-10 Vdc External Input

GB - FA & RA Mod motor w/ 4-20 mA External Input

GC - FA & RA Mod motor w/ Minimum Position

GD - FA & RA Mod motor w/ Remote Position (On Remote Panel)

GE - FA & RA Mod motor w/ 3 pos. damper (100% RA, Variable, 100% OA)

GG - FA & RA Mod motor w/ Minimum Position & Prop. Temp Controller

GH - FA & RA Mod motor w/ Remote Position & Prop. Temp Controller

GJ - FA & RA Mod motor w/ FA Enthalpy Controller

Gk - ASHRAE Cycle II - (“GG” with Warm-up Stat)

GM - ASHRAE Cycle II - (“GH” with Warm-up Stat)

HP - FA & RA Floating motor w/ Space Pressure Controller

JA - Manual FA & RA Dampers kA - Manual FA Damper with Return Air Opening

22 - evaporative cooling (ec)

B - 12" CELdek Media, Stainless Steel Casing

D - 12" GLASdek Media, Stainless Steel Casing

0 - None

23 - cooling coil (cc)

0 - None 1 - Factory Installed Coil

5-572.8

57

tHis PaGe intentionally left BlanK

58

5-572.8

tHis PaGe intentionally left BlanK

5-572.8

59

commercial Warranty

workmanship, EXCLUSIVE, HOWEVER, of failures attributable to the use of materials substituted under emergency conditions for materials normally 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,

Seller in any way so as, in the judgment of Seller, to affect its stability, nor which has been subjected to misuse, negligence, or operating conditions in

WARRANTIES, EITHER EXPRESS OR IMPLIED, WHETHER ARISING

FROM LAW, COURSE OF DEALING, USAGE OF TRADE, OR OTHERWISE,

Beyond tHe Product descriPtion confirmed By Buyer and seller as of tHe date of final aGreement.

units, or if the product in the judgment of SELLER has been installed in a corrosive atmosphere, or subjected to corrosive fluids or gases, been subjected contrary to seller’s printed instructions, or if the serial number has been altered, defaced or removed.

ANY OTHER CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY kIND

RESULTING FROM THE ORDER OR USE OF ITS PRODUCT, WHETHER

OTHER REMEDIES PROVIDED BY LAW, IS LIMITED TO REPAIR OR

REPLACEMENT AT THE FACTORY OF SELLER, ANY COMPONENT WHICH

WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE

EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE;

BUYer’s reMeDY FOr BreaCH, as liMiteD Herein, sHall Be

LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER. FOR

REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO

TEN YEARS FROM DATE OF SHIPMENT FROM SELLER.

transferred or assigned. No provision is made in these warranties for any labor allowance or field labor participation. Seller will not honor any expenses credit shall be issued for any defective part returned without proper written date of failure, etc.) and freight prepaid.

OPTIONAL SUPPLEMENTAL WARRANTY

Provided a supplemental warranty has been purchased, Seller extends the warranty herein for an additional four (4) years on certain compressors.

Provided a supplemental warranty has been purchased, Seller extends the warranty herein for an additional four (4) years or nine (9) years on certain heat exchangers.

eXClUsiOn OF COnsUMaBles & COnDitiOns BeYOnD seller’s

CONTROL gas, belts, filters, fuses and other items consumed or worn out by normal wear and tear or conditions beyond seller’s control, including (without limitation as to generality) 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

component

Applicable Models

“aPPlicaBle Warranty Period”

Heat exchangers

Gas-Fired Units except MPR Models

TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN

TEN YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN TEN YEARS

FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN ONE

HUNDRED TWENTY-SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER

OCCURS FIRST

Heat exchangers

Low Intensity Infrared Units , Gas Heat option on

MPR models

compressors

Condensing Units for Cassettes

Burners

Low Intensity Infrared Units

compressors

MPR Models

other

Coils, Condensers, Burners, Sheet Metal

FIVE YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN

FIVE YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN FIVE YEARS

FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN SIXTY-SIX

MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST

TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN

TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN

THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST

Heat exchangers/coils

Indoor and Outdoor Duct Furnaces and

System Units, Steam/Hot Water Units,

Oil-Fired Units, Electric Units, Cassettes,

Vertical Unit Ventilators

compressors

Vertical Unit Ventilators

Burners

High Intensity Infrared Units

sheet metal Parts

All Products

ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN

ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN

EIGHTEEN MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST

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

© Modine Manufacturing Company 2015

modine manufacturing company

1500 Dekoven Avenue

Racine, WI 53403

Phone: 1.800.828.4328 (HEAT) www.modinehvac.com