Modine IBG /ICG, IBP /ICP gas-fired indoor gravity and power vented duct furnace/make-up air units Installation and service manual
Below you will find brief information for gas-fired indoor gravity and power vented duct furnace/make-up air units IBG/ICG, IBP/ICP. The IBG/ICG models are gravity vented and the IBP/ICP models are power vented. The IBP/ICP models are approved for use in California by the CEC.
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AIR 5-565.2
5H0806450000
August, 2015
August, 2015
installation and service manual gas-fired indoor gravity and power vented duct furnace/make-up air units models iBG/icG, iBP/icP
model iBG model icP
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.
IBP/ICP 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.
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
2
sPecial Precautions
THE INSTALLATION AND MAINTENANCE INSTRUCTIONS
IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE SAFE,
EFFICIENT AND TROUBLE-FREE OPERATION. IN ADDITION,
PARTICULAR CARE MUST BE EXERCISED REGARDING THE
SPECIAL PRECAUTIONS LISTED BELOW. FAILURE TO
PROPERLY ADDRESS THESE CRITICAL AREAS COULD
RESULT IN PROPERTY DAMAGE OR LOSS, PERSONAL
INJURY, OR DEATH. THESE INSTRUCTIONS ARE SUBJECT
TO ANY MORE RESTRICTIVE LOCAL OR NATIONAL CODES.
HaZard intensity levels
1. danGer: Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
2. WarninG: Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
3. caution: Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury.
4. imPortant: Indicates a situation which, if not avoided,
MAY result in a potential safety concern.
dANGER
Appliances must not be installed where they may be exposed to a potentially explosive or flammable atmosphere.
WARNING
1. Gas fired heating equipment must be vented - do not operate unvented.
2. a. Model IBG/ICG has a built-in draft diverter - additional external diverters are not required or permitted.
b. Model IBP/ICP has a built-in power exhauster - additional external power exhausters are not required or permitted.
3. If you are replacing an existing heater, it may be necessary to resize the venting systems. Improperly sized venting systems can result in vent gas leakage or the formation of condensate.
Refer to the National Fuel Gas Code ANSI Z223.1 or CSA B149.1 latest edition. Failure to follow these instructions can result in injury or death.
4. For Model IBG/ICG, gas-fired heating equipment which has been improperly vented, or which experiences a blocked vent condition may have flue gases accidentally spilled into the heated space. See page 53 for specific information about the blocked vent safety switch supplied on the unit.
5. For Model IBP/ICP, under no circumstances should two sections of double wall vent pipe be joined together within one horizontal vent system due to the inability to verify complete seal of inner pipes.
6. 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.
7. Gas pressure to appliance controls must never exceed 14" W.C.
(1/2 psi).
8. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.
9. All appliances must be wired strictly in accordance with wiring diagram furnished with the appliance. Any wiring different from the wiring diagram could result in a hazard to persons and property.
10. 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.
11. Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% greater than the rated voltage.
12. Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105°C.
13. 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 owners risk.
CAUTION
1. 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.
2. Do not attempt to reuse any mechanical or electronic ignition controllers which has been wet. Replace defective controller.
3. Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% less than the rated voltage.
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 cooling package units or the unit access doors in blower 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.
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 51.1 on pages 51-52, refer to the applicable sections of the manual.
table of contents
Inspection on Arrival . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Special Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SI (Metric) Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Unit Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Combustible Material and Service Clearances. . . . . . . . . . . . . 3
Unit Lifting and Unit Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unit Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Duct Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Venting
Gas Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Connections for Elevation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cooling Coil Specifications and Installation . . . . . . . . . . . . . . 12
Start-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pilot Burner Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Main Burner Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Blower Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Lubrication Recommendations . . . . . . . . . . . . . . . . . . . . . . . . 16
Control Operating Sequence . . . . . . . . . . . . . . . . . . . . . . . . . 17
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
General Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Unit Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Option & Accessory Pressure Drop Data . . . . . . . . . . . . . . . . . . . . 32
Blower Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Blower Sheave Assembly Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Motor Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Weights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Service & Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Model Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Start-Up Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Commercial Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Page
AIR 5-565.2
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
Btu/ft 3
1.699 m
3
/min
0.0374 mJ/m
3
pound 0.453 kg
Btu/hr 0.000293 kW/hr
gallons
psig
3.785
27.7 liters
"W.C.
figure 3.1 - combustible material and service clearances unit location
dANGER
Appliances must not be installed where they may be exposed to a potentially explosive or flammable atmosphere.
model iBG/icG model iBP/icP
IMPORTANT
➀
A 3'' minimum clearance to combustible material is required from the vent collar.
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, availability of gas and electrical supply, and proximity to vent locations.
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. For proper operation the unit must be installed in a level horizontal position.
4. Do not install units in locations where the flue products can be drawn into the adjacent building openings such as windows, fresh air intakes, etc.
5. Be sure that the minimum clearances to combustible materials and recommended service clearances are maintained. Units are designed for installation on noncombustible surfaces with the minimum clearances shown in Figure 3.1 and Tables 3.2 and 3.3.
6. Units installed downstream of refrigeration systems, or exposed to inlet air temperatures of 40°F or less, may experience condensation, therefore, provisions should be made for disposal of condensate. Means have been provided in the bottom pan of the unit to accommodate a condensate drain line connection flange.
7. When locating units, it is important to consider that the exhaust vent piping must be connected to the outside atmosphere.
8. In garages or other sections of aircraft hangars such as offices and shops that communicate with areas used for servicing or storage, keep the bottom of the unit at least
7' above the floor unless the unit is properly guarded to provide user protection from moving parts. In parking garages, the unit must be installed in accordance with the standard for parking structures ANSI/NFPA 88A, and in repair garages the standard for repair garages NFPA #88B.
In Canada, installation of heaters in airplane hangars must be in accordance with the requirements of the enforcing authority, and in public garages in accordance with the current CAN/CGA-B149 codes.
9. Do not install units in locations where gas ignition system is exposed to water spray, rain, or dripping water.
table 3.2 - combustible material clearances
model size
75 thru 175
200 thru 960 non-access side (B) iBG/ icG top
(c) iBP/ icP
table 3.3 - recommended service clearances
model size
75
100-125
150-175
200-225
250-300
500-600
350-400
700-800
840-96 access side
(a) iBG/ icG
6"
6"
access side
(a)
18"
20"
25"
27"
30"
41"
iBP/ icP
12"
12"
all
1"
2"
non-access side (B)
6"
combustion air requirements
2"
2"
top
(c)
10"
3"
3"
Bottom
(d) all
2"
2"
Bottom
(d)
0"
Units installed in tightly sealed buildings or confined spaces must be provided with two permanent openings, one near the top of the confined space and one near the bottom. Each opening should have a free area of not less than one square inch per 1,000 BTU per hour of the total input rating off all units in the enclosure, freely communicating with interior areas having, in turn adequate infiltration from the outside.
For further details on supplying combustion air to a confined
(tightly sealed) space or unconfined space, see the National
Fuel Gas Code ANSI Z223.1 of CAN/CGA B149.1 or .2
Installation Code, latest edition.
sound and vibration levels
All standard blower mechanical equipment generates some sound and vibration that may require attenuation. Libraries, private offices and hospital facilities will require more attenuation, and in such cases, an acoustical consultant may be retained to assist in the application. Locating the equipment away from the critical area is desirable within ducting limitations.
Generally, a unit should be located within 15 feet of a primary support beam. Smaller deflections mean lesser vibration and noise transmission.
AIR 5-565.2
3
unit location/unit liftinG/unit mountinG
unit liftinG
All standard blower system units are shipped fully crated with skid supports below the unit. The unit may be lifted from the bottom by means of a fork lift or other lifting device only if the shipping support skids are left in place. DO NOT attempt to lift the unit from the bottom unless the shipping skid supports are still in place. When lifting units, make sure the load is balanced.
All extended cabinet systems are shipped without a crate and cannot be lifted with a fork truck. Use a crane or other overhead lifting device in conjunction with the lifting holes (refer to page
46 for base rail lifting hole locations) for safe unit relocation. If the unit must be lifted from the bottom for final installation of the unit be sure to properly support the unit over its entire length to prevent damage.
unit mountinG
Be sure the method of unit support (suspension or floor mounting) is adequate to support the weight of the unit (see
Weights for base unit and factory installed option weights). For proper operation, the unit must be installed in a level horizontal position. Combustible material and service clearances as specified in Figure 3.1 and Tables 3.2 and 3.3 must be strictly maintained. To assure that flames are directed into the center of the heat exchanger tubes, the unit must be level in a horizontal position. Use a spirit level to ensure that the unit is suspended or floor mounted correctly.
unit suspension
3/4" diameter suspension hanging locations are provided in the base rail assembly of the unit. Refer to Figure 46.1 for
Suspension Hanging Locations and Figure 4.1 demonstrates how the unit should be suspended and the suspension rods fastened to the unit base rail. If required, vibration isolators may be added.
figure 4.1 - unit suspension method ➀
3/4" SUSPENSION
RODS (BY OTHERS)
floor mounted units
For floor installations, the floor structure must be adequately designed to support the live weight load of the unit and any other required support structure. Additional reinforcement should be provided, if necessary. The floor should include threaded 5/8inch anchor bolts spaced according to Figure 4.2, for securing the unit in place. 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).
figure 4.2 - floor mounted unit anchor Bolt locations
A
B
C
5/8 Dia. (4)
table 4.1 - floor mounted unit anchor Bolt locations
model size
75
100/25
150/175
200/225
Blower type
(digit 16)
All
All
All
All
iBG/iBP units
(a)
86.27
86.37
86.37
86.37
250/300 E,F,G, or H 86.37
250/300
I,J, or K 112.12
350/400 E,F,G or H 86.37
350/400
I,J, or K 122.2
500/600
500/600
G or H
I,J, or K
119.52
155.38
700/800
G or H 119.52
700/800 I,J,K, or L 155.37
840/960 I,J,K, or L 184.61
icG/icP units
(a)
115.48
115.48
115.48
115.48
115.48
151.34
115.48
151.34
–
–
–
–
–
all units
(B)
33.85
36.36
40.61
42.71
45.75
45.75
57.27
57.27
45.75
45.75
57.27
57.27
57.27
–
–
33.5
33.5
33.5
33.5
62.73
iBG/iBP units
(c)
–
–
–
–
–
–
BLOWER
SECTION
DOOR
ELECTRICAL
SECTION
DOOR
(1) 3/4" NUT &
LOCKWASHER
DUCT
FURNACE
(2) 3/4" NUTS &
LOCKWASHER
➀
Model IBP standard blower cabinet shown. Mounting is the same for Model IBG.
4
AIR 5-565.2
duct installation/ventinG discharge duct connection (refer to figure 5.1)
1. The furnace discharge is designed to accept straight ductwork. Provide an airtight seal between the ductwork and the furnace to prevent leakage. Seams with cracks in the ductwork should be caulked and/or taped and be of permanent type.
2. Provide removable access panels on the downstream side of the ductwork. This opening 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 heat exchangers due to poor air distribution or lack of sufficient air (CFM).
3. Provide uniform air distribution over the heat exchanger.
Use turning vanes where required to obtain uniform air distribution (see Figure 5.1).
figure 5.1 - recommended field installed discharge duct configurations
3" MINIMUM
TURNING VANES
3" MAXIMUM
PROVIDE LEAK TIGHT ACCESS PANELS
HEAT EXCHANGER INSPECTION
ventinG
WARNING
1. Gas fired heating equipment must be vented - do not operate unvented.
2. a. Model IBG/ICG has a built-in draft diverter - additional external diverters are not required or permitted.
b. Model IBP/ICP has a built-in power exhauster - additional external power exhausters are not required or permitted.
3. If you are replacing an existing heater, it may be necessary to resize the venting systems. Improperly sized venting systems can result in vent gas leakage or the formation of condensate.
Refer to the National Fuel Gas Code ANSI Z223.1 or CSA
B149.1 latest edition. Failure to follow these instructions can result in injury or death.
4. For Model IBG/ICG, gas-fired heating equipment which has been improperly vented, or which experiences a blocked vent condition may have flue gases accidentally spilled into the heated space. See page 53 for specific information about the blocked vent safety switch supplied on the unit.
5. For Model IBP/ICP, under no circumstances should two sections of double wall vent pipe be joined together within one horizontal vent system due to the inability to verify complete seal of inner pipes.
A
AIR
FLOW
B*
3" MINIMUM
TURNING VANES
3" MAXIMUM
AIR
FLOW
B*
12" MINIMUM
*DIMENSION "B" SHOULD NEVER BE
LESS THAN 1/2 OF DIMENSION "A".
12" MINIMUM
*DIMENSION "B" SHOULD NEVER BE
LESS THAN 1/2 OF DIMENSION "A".
Blower section and cooling cabinet duct connections
The blower section back and bottom and cooling cabinet section discharge are designed to accept 90° flanged ductwork (see
Figure 5.2). Provide an airtight seal between the ductwork and the unit to prevent leakage. Seams with cracks in the ductwork should be caulked and/or taped and be of permanent type.
figure 5.2 - Blower section and cooling cabinet duct connections
1/2"
A
SIDE VIEW
PROVIDE LEAK TIGHT ACCESS PANELS
HEAT EXCHANGER INSPECTION
DUCTWORK
WITH 90°
1/2" FLANGE
TOP VIEW
BLOWER OR
COOLING COIL
SECTION
General venting instructions
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. To determine the Venting Category of the unit being installed, refer to Table 5.1.
table 5.1 - venting category determination
model iBG/icG iBP/icP venting category
I
➀
I
➀
III
➁
Vent Configuration
Vertically vented units only.
Vertically vented units only.
Horizontally vented units only.
➀
Vent is negative pressure, non-condensing. Follow standard venting requirements.
➁
Vent is positive pressure, non-condensing. Vent must be gastight.
3. For units vented as Category I, refer to Table 5.2 for vent sizing. Vent sizing for units vented as Category III are covered in a later section on page 7. Do not use a vent pipe smaller than the size of the outlet or vent transition of the appliance.
The pipe should be suitable corrosion resistant material.
Follow the National Fuel Gas Code for minimum thickness and composition of vent material. The minimum thickness for connectors varies depending on the pipe diameter.
table 5.2 - category i minimum vent Pipe sizing
model size
minimum vent Pipe diameter ➁
iBG/icG iBP/icP
75
100-125
150-175
200-225
250, 500
7"
7"
5"
6"
8"
4"
4"
5" ➀
6"
6"
300-400
600-960
10"
➀
Requires a 4" to 5" adapter for the larger 5" vent pipe diameter.
➁
Per furnace.
6"
AIR 5-565.2
5
4. For Category I vent systems limit length of horizontal runs to
75% of vertical height. Install with a minimum upward slope from unit of 1/4 inch per foot and suspend securely from overhead structure at points no greater than 3 feet apart.
For best venting, put vertical vent as close to the unit as possible. For Model IBP/ICP units, a minimum of 12" straight pipe is recommended from the power exhauster outlet before turns in the vent system. Fasten individual lengths of vent together with at least three corrosion-resistant sheet-metal screws.
5. It is recommended that vent pipes be fitted with a tee with a drip leg and a clean out cap to prevent any moisture in the vent pipe from entering the unit. The drip leg should be inspected and cleaned out periodically during the heating season.
6. The National Fuel Gas Code requires a minimum clearance of 6 inches from combustible materials for single wall vent pipe. The minimum distance from combustible materials is based on the combustible material surface not exceeding
160°F. Clearance from the vent pipe (or the top of the unit) may be required to be greater than 6 inches if heat damage other than fire (such as material distortion or discoloration) could result.
7. Avoid venting through unheated space. When venting does pass through an unheated space, insulate runs greater than
5 feet to minimize condensation. Inspect for leakage prior to insulating and use insulation that is noncombustible with a rating of not less than 350°F. Install a tee fitting at the low point of the vent system and provide a drip leg with a clean out cap as shown in Figure 6.1.
8. When the vent passes through a combustible wall or floor, a metal thimble 4 inches greater than the vent diameter is necessary. If there is 6 feet or more of vent pipe in the open space between the appliance and where the vent pipe passes through the wall or floor, the thimble need only be 2 inches greater than the diameter of the vent pipe. If a thimble is not used, all combustible material must be cut away to provide 6 inches of clearance. Any material used to close the opening must be noncombustible.
9. Do NOT use dampers or other devices in the vent pipes.
10. Precautions must be taken to prevent degradation of building materials by flue products.
11. For category I vent systems the outlet of the vent should extend as shown in Figure 6.1 and Tables 6.1 and 6.2.
12. Use a listed vent terminal to reduce downdrafts and moisture in vent. For model IBG/ICG, a vent terminal that is very open will avoid spillage at unit’s diverter relief opening and tripping of the blocked vent safety switch.
13. For instructions on common venting refer to the National
Fuel Gas Code.
14. The vent must terminate no less than 5' above the vent connector for Category I vent systems.
15. A unit located within an unoccupied attic or concealed space shall not be vented with single wall vent pipe.
16. Single wall vent pipe must not pass through any attic, inside wall, concealed space, or floor.
17. Do NOT vent Model IBP/ICP units into a masonry chimney.
Model IBG/ICG units can be vented into a masonry chimney if the following requirements are met:
a. Do not vent a Category l unit into a common vent with mechanical draft systems operating under positive pressure (Category lll or lV units.)
b. When connecting a vent to an existing chimney, do not push the vent pipe beyond internal surface of chimney.
c. When venting into a common vent, the area of the common vent should be equal to or greater than the area of the largest vent plus 50 percent of the area of all additional vents.
d. When venting into a common vent, the individual vents should enter at different levels.
6
figure 6.1 - vertical category i vent system
X
2 FEET MINIMUM
ROOF PITCH IS:
X / 12
12"
USE LISTED
THIMBLE
THROUGH
ROOF
MAINTAIN MINIMUM
CLEARANCE TO
COMBUSTIBLES
12" MINIMUM
(SLOPE PIPE UP
1/4" PER FOOT
TOWARD DRIP LEG)
DISTANCE "D" TO
WALL OR ADJOINING
BUILDING
"H" FEET MINMUM
ABOVE WALL OR
BUILDING PER
TABLE 6.2
3 FEET
MINIMUM*
TO EXPECTED
SNOW DEPTH.
CLEARANCE TO
COMBUSTIBLES
12" MINIMUM
(SLOPE PIPE UP
TOWARD DRIP LEG)
LISTED
TERMINAL
"H" FEET MINIMUM
PER TABLE 6.1
USE LISTED
THIMBLE
THROUGH
CEILING
LISTED
TERMINAL
ROOF
FLASHING
TEE WITH DRIP LEG
AND CLEANOUT CAP
ROOF
FLASHING
USE LISTED
THIMBLE
THROUGH
CEILING
TEE WITH DRIP LEG
AND CLEANOUT CAP
table 6.1 - minimum Height from roof to lowest discharge opening
roof rise
“ X” (in)
0-10
10-12
12-14
14-16
16-18
18-21
equivalent roof Pitch
Flat to 10/12
10/12 to 12/12
12/12 to 14/12
14/12 to 16/12
16/12 to 18/12
18/12 to 21/12 j
Increase "H" as required to accommodate snow depth.
minimum Height
“H” (ft) j
3.00
4.00
5.00
6.00
7.00
8.00
table 6.2 - minimum Height above adjacent Wall less than 10 feet away
"d"
10 Feet or Less
Greater than 10 Feet
"H"
2 Feet Minimum
No Additional Height Required
AIR 5-565.2
installation
18. When condensation may be a problem, the venting system shall not terminate over public walkways or over an area where condensation or vapor could create a nuisance or
hazard or could be detrimental to the operation of regulator relief openings or other equipment.
19. In cold ambient conditions, such as Canada, the following items are recommended for proper operation and equipment life:
• The vent pipe must not pass through an unheated space or interior part of an open chimney unless the vent pipe is insulated.
• Where the vent pipe may be exposed to extreme cold, or come into contact with snow or ice, the entire vent must be insulated or double wall (includes outdoors). It is preferred that the double wall vent is one continuous piece but a joint is allowed outside the building.
• The heater system shall be checked at least once a year by a qualified service technician.
additional requirements for Horizontally vented category iii units (model iBP/icP units only)
1. Seal the joints with a metallic tape or silastic suitable for
temperatures up to 350°F. (3M tapes 433 or 363 are
acceptable.) Wrap tape two full turns around the vent pipe.
2. Refer to Table 7.1 for total minimum and maximum vent lengths making the vent system as straight as possible.
The equivalent length of a 90° elbow is 5 feet for 4" diameter and 7 feet for 6" diameter.
table 7.1 - Horizontal category iii vent sizing
requirements ➁
model size
75
100-175
200
225
250-300
500-600
350-400
800-960 vent connector diameter
4"
4"
6"
6"
6"
6"
minimum vent
Pipe diameter
4"
4"
5" ➀
6"
6"
6"
maximum vent length
➀
Unit can be vented with 5" diameter pipe if a 6" to 5" reducer is used.
Otherwise, use 6" pipe.
➁
Per furnace.
48'
55'
70'
70'
63'
70'
3. The vent terminal must be Modine part number:
• 5H072285-0001 (Item Code 27866) for 4" vent pipe
• 5H072285-0004 (Item Code 27867) for 5" vent pipe
• 5H072285-0002 (Item Code 27868) for 6" vent pipe
A Gary Steel 1092 cap is an acceptable alternate.
4. The vent must extend a minimum of 12" beyond the exterior wall surface and must be supported as shown in Figure 7.1.
Precautions must be taken to prevent degradation of building materials by flue products.
5. The vent system shall terminate at least 3 feet above any
forced air inlet (except direct vent units) located within 10 feet, and at least 4 feet below, 4 feet horizontally from, or 1 foot above any door, window, or gravity air inlet into any building. The bottom of the vent terminal shall be located above the snow line or at least 1 foot above grade; whichever is greater. When located adjacent to public walkways the vent system shall terminate not less than 7 feet above grade.
6. The venting system must be exclusive to a single unit, and no other unit is allowed to be vented into it.
7. Horizontally vented units must use single wall vent pipe although one continuous section of double wall vent pipe may be used with the vent system. Under no circumstances should two sections of double wall vent pipe be joined together within one vent system due to the inability to verify complete seal of inner pipes.
figure 7.1 - iBP/icP Horizontal venting
UNIT
USE LISTED THIMBLE
THROUGH WALL
(SLOPE PIPE DOWN
1/4" PER FOOT
TOWARD DRIP LEG)
12" MIN SPECIFIED
TERMINAL
TEE WITH DRIP LEG
AND CLEANOUT CAP
9" MIN
9" MIN
STEEL ANGLE
VENT TERMINATION
SUPPORT BRACKET
(WHERE REQUIRED)
AIR 5-565.2
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
MANUAL GAS
SHUT-OFF VALVE
➀
GROUND
JOINT
W/ BRASS
SEAT
GAS
SUPPLY LINE
3"
MIN.
1/8" NPT TEST
GAGE CONNECTION
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.
AIR 5-565.2
installation
table 9.1 - Burner orifice sizing and Gas consumption
model size
Gas type
natural j Propane k
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
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
AIR 5-565.2
9
installation
considerations for elevation
The standard ratings for Models IBG/ICG and IBP/ICP 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.
equation 10.1 - manifold Pressure for Gas Heating values different than shown in table 10.1
Where:
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/ft
3
) ➀ ➁ ➂ ➄
BTUTBL = BTU/ft 3 content of gas from Table 10.1
BTUACT = BTU/ft 3 content of gas obtained from the 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
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/ft
3 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/ft
3
for Canada
➃
2,250 Btu/ft
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.
3
for Canada
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”.
10 iBG/ icG elevation above sea level (ft)
2,001-5,500 5,501-6,500 6,501-7,500
67248 67248
iBP/ icP
75-350
500-700
840
400
800
960 item code item code
67248
67248
67248
68409
67248
68411
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
68409
68411 all item code
High altitude conversion label
Yes
Yes
Yes
Kit contents
Pressure switch
No
Yes
Yes
67248
installation instructions
Yes
Yes
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.
AIR 5-565.2
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
Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% greater than 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 for which the low voltage terminal blocks in the unit are rated.
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)
Wire Gauge
3
4
1
2
40
75
150
250 maximum # of Wires per terminal
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 11.1. For fusible disconnect switches, refer to the Model Identification plate for the fuse size and type.
figure 11.1 - recommended accessory field installed disconnect switch mounting locations
DUCT
FURNACE
DISCONNECT
SWITCH WIRING,
AND CONNECTOR
ELECTRIC SUPPLY
COMPONENTS MUST BE
CLEAR OF SERVICE DOORS
BLOWER
SECTION
DOOR
ELECTRICAL
SECTION
DOOR
6. The power supply must be within 5% 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 connection (120, 208, 240, 480, or 600 volts).
b. Connection of thermostats, remote monitoring panels, building pressure sensors, CO detectors, time clocks, or any other accessory control devices that may be supplied
(24 volts).
8. Refer to the unit dimensional drawings on pages 42-45 for the electrical entry locations.
9. 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.
AIR 5-565.2
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.
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
Suction Line
Nozzle
Coil
Straps
figure 12.1 - cooling section
Remote Sensing Bulb
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
condensate drain Pan trap
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
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
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
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.
AIR 5-565.2
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
Ret urn
Vent Plug
Dirt Leg
Cap
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
(ft 2 ) max
cfm j
area
(ft 2
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
AIR 5-565.2
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
AIR 5-565.2
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 - manifold Pressure test Points
Premium Controls
Manifold Pressure Test Point
Standard Controls
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 gas valve 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 50.2). 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.
AIR 5-565.2
15
16 start-uP Procedure
Blower adjustments
If blower fan speed changes are required, adjust motor sheave as follows:
1. Refer to page 33 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
DAMPER
BLADE
➪
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.
AIR 5-565.2
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 iBP/icP 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
AIR 5-565.2
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 29.1 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
AIR 5-565.2
oPtions
options - factory installed figure 19.1 - factory mounted option locations
9
8
12
46
13
14
15
17 19
21
16 18 20 22
23
24
25
26
27
10
4
5
48
6
50
3
2
49
LOW
PRESSURE
MODEL
RLGP-A
M1
50
100
200
300
250
350 mm.
W.C.
10
12
IN.
ADDISON
IL. U.S.A.
FM PRESSURE LISTED OPERATED
504H SWITCH
PRESSURE LOW
RLGP-A
M1
100
150
300
350 mm.
W.C.
10
14
IN.
ADDISON
IL. U.S.A.
FM PRESSURE LISTED
SWITCH OPERATED
504H
52 51 55 47
UNITS WITH PREMIUM CONTROL BOX
2. Low Gas Pressure Switch
3. High Gas Pressure Switch
4. Power Exhauster
5. Timed Freeze Protection
6. Ignition Controller
8. Control Relay
9. Differential Pressure Switch
10. Furnace Low Voltage Terminal Strip
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
45
43 40 38
44 42 41 39
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
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
36
37 35
34
33
32
31
30
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
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
55. Time Delay Relay
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.
figure 19.2 - two-stage capillary type thermostat
Downstream
Ductwork
(by others)
Setpoint
Adjuster
Right
Left
R
R
B
B
W
W
Capillary
AIR 5-565.2
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
the gas controls have been damaged by the high gas pressure and then reset the switch to 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 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).
(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
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.
(8) control relay – (oPt)
The control relay is factory installed in the duct furnace electrical junction box. The relay has a 24V coil with double-pole, 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.
AIR 5-565.2
oPtions
(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.
(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.
figure 21.1 - dead front disconnect switch assembly
BLOWER SECTION
ELECTRICAL
COMPARTMENT
ACCESS DOOR
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.
AIR 5-565.2
DISCONNECT
SWITCH HANDLE
OPERATION
INSTRUCTION
LABEL
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 with a supply voltage of 460V/3Ph and 575V/3Ph.
(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 21.2 - minimum Positioner
80
60
Belimo
%
40
20
21
oPtions
(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 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
2" FARR ®
® Aeropleat MERV 7 or
30/30 MERV 8 filters. For filter replacement, refer to
Maintenance.
(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.
(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
22
AIR 5-565.2
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 22.1 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".
figure 22.1 - two-position damper actuator and limiter
oPtions
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 23.1
.
3. Gently rotate the crank until the switch pointer is at the desired switch point in degrees as shown.
figure 23.1 - 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 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.
(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 23.2 - enthalpy controller
AIR 5-565.2
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/ft seals are used.
2
at 1" W.C.) dampers with selfcompensating stainless steel side seals and santoprene blade
(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
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
AIR 5-565.2
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
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 5 L3
A2
13 NO 3 L2
CONTACTOR
MODULE
TRIP
INDICATOR
WINDOW
CURRENT
SET POINT
DIAL
2
T1
4
T2
6
T3
14
NO
A2
RESET
OVERLOAD
MODULE
98
NO
97
2
T1
H
95
NC
96
S
E
T
4
T2
6
T3
(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
AIR 5-565.2
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.
(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
AIR 5-565.2
tHis PaGe intentionally left BlanK
AIR 5-565.2
27
General Performance data
table 28.1 - 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
75,000 10,0000 125,000 150,000 175,000
60,000 80,000 100,000 120,000 140,000
A or B C or D
100 100
C or D E or F
100 85
C or D E or F
100 100
C or D E or F
100 100
C or D E or F
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
200,000 225,000
160,000 180,000
C or D E or F
100 85
G or H C or D
85 100
E or F G or H
95 95
250,000
200,000
E or F G or H I, J, or K
100 100 96
44 28 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
300,000 350,000 400,000
240,000 280,000 320,000
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
37 31
100 100 100 100
20 45 37 22
100 100
52 42
100
25
6000 7250 11111 5700 7000 12000 5700 7000 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
500,000
400,000
G or H I, J, or K
120 120
53 40
L
600
600,000
480,000
G or H I, J, or K L
120 120 120 120
40 63 40 40
700
700,000
560,000
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
800,000
840
1,050,000
960
1,200,000
G or H
640,000
I, J, or K L
840,000
I, J, or K L
960,000
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.
28
AIR 5-565.2
General Performance data
table 29.1 - air temperature rise
Btu/Hr
➀
air temperature rise through unit (°f)
max cfm min
➁
75,000 60,000 2778 2222 1852 1587 1389 1235 1111 1010 926 855 794 741 694 654 617 585 556
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.
AIR 5-565.2
29
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
(filters or dampers).
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.
30
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 unit with the controls on the Right Hand Side is to be provided with the following:
2" Permanent Filters, and Fresh Air Damper.
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 only) and the venting style
(power vented) that are obtained from item #5. Using the
Model Nomenclature on page 57, the Model Configuration and Venting = IBP.
2. determine the furnace input rating (mBH):
Using the Heating output capacity, the Furnace Input
Rating is determined from Table 29.1. 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 in Selection Example Conditions, 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 in Selection Example Conditions, the modulating gas controls result in the Development
Sequence = M.
5. determine the access side:
From item #5 in Selection Example Conditions, the Right
Hand Gas controls result in the Access Side = R.
6. determine the air temperature rise:
From item #2 in Selection Example Conditions, the Air
Temperature Rise is 60°F (70°F - 10°F). However, using the output capacity of the IBP400 @ 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 baffle must remain in place.
7. determine the Gas type:
From item #7 in Selection Example Conditions, the Natural
Gas results in the Gas Type = N.
8. determine the Gas valve:
From item #8 in Selection Example Conditions, 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.
AIR 5-565.2
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:
For IBP/ICP models, a 75VA Transformer is required. Thus, the Transformer = 2.
12. determine the Blower size and Bearing type:
Using Table 29.1, the Model Size 400 has three available blowers for which the performance tables are shown on pages 33-35. Since all of the blower performance curves can provide the required 5000 cfm, the total static pressure 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 up the table until the cfm intersects the desired item. For this example, in Table
32.1 the 2'' Permanent Filter line is used. At the point of intersection, read across the table to the left and read the pressure drop, in inches of water column for the filters.
For this example, the pressure drop is 0.06'' W.C.
As a result:
For the Model Size 400 with Digit 16 = E,F,G, or H:
2'' Permanent Filters:
Internal Static Pressure Drop
0.06" W.C.
0.06" W.C.
The Total Static Pressure for the system is determined by
Internal Static + External Static = Total Static Pressure
For this example 0.06'' + 0.65'' = 0.71'' W.C. T.S.P.
From page 32,
for the Model Size 400 with Digit 16 = I, J, or K:
2'' Permanent Filters:
Internal Static Pressure Drop
0.04'' W.C.
0.04'' W.C.
The Total Static Pressure for the system is determined by
Internal Static + External Static = Total Static Pressure
For this example 0.04'' + 0.65'' = 0.69'' 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 (Table 34.1).
Using Table 34.1, enter the table at the required 5000 cfm for E, F blowers, and follow the cfm line up 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 literate 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,H blowers
(Using 5000 cfm and 0.87'' W.C. T.S.P), the horsepower is 3hp 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 will be used.
Since the Bearing Type was not specified, the standard spider bearings will be used. Thus, using Table 34.1 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 the standard open drip proof motor will be used so the Motor Type = 1.
15. determine the sheave arrangement:
To establish the Sheave Arrangement, the motor frame size must be determined. The Motor Data tables on pages 40-41 contain the motor frame size.
A) Using the Supply Voltage (460V/60Hz/3Ph), enter the correct Motor Data table (Table 41.2). 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 37.2). Using the rpm calculated in step 12
(870 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 870 rpm, from Table
37.2, 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 pages 22-23. 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 is not available, 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:
IBP400SMRLN40F2GG1IDA00
Once the basic model has been determined, the additional options and accessories outlined on pages 19-26 can be added to the unit.
AIR 5-565.2
31
oPtion & accessory Pressure droP data
table 32.1 - option & accessory Pressure drop tables (in ''W.c.)
➀
all units Weatherproof unit only
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,l e,f,G,H i,J,K,l
cfm
1'' Permanent filters 2'' Permanent filters aeropleat filters downturn Plenum rainhood and Birdscreen discharge damper
556 0.01 0.01 0.02 0.03 0.02 0.07 0.00 0.01 0.00
600 0.01 0.01 0.02 0.03 0.02 0.07 0.00 0.01 0.01
800 0.02 0.01 0.03 0.04 0.04 0.12 0.01 0.02 0.01
1000
4000
5500
4000 Max CFM for Evap
0.03 0.04 0.07 0.08 0.13 0.32 0.05 0.07 0.01
0.04 0.05 0.09 0.10 0.16 0.39 0.06 0.09 0.02
5000 0.05 0.06 0.10 0.12 0.20 0.47 0.07 0.11 0.02
0.06 0.07 0.12 0.14 0.24 0.55 0.09 0.14 0.03
6000 0.06 0.08 0.14 0.17 0.29 0.64 0.10 0.17 0.04
0.07 0.10 0.16 0.19 0.34 0.74 0.12 0.20 0.04
7000 0.08 0.11 0.18 0.22 0.39 0.85 0.14 0.23 0.05
0.02 0.01 0.02 0.02 0.03 0.11 0.02 0.03 0.01
3000
0.04 0.04 0.07 0.09 0.15 0.36 0.04 0.06 0.02
0.04 0.04 0.08 0.10 0.19 0.44 0.05 0.07 0.03
0.06 0.07 0.11 0.13 0.31 0.68 0.08 0.11 0.04
0.08 0.09 0.15 0.16 0.45 0.96 0.12 0.15 0.06
1000
1500
0.07 0.08 0.10 0.14 0.23 0.53 0.07 0.13 0.04
0.09 0.11 0.13 0.19 0.34 0.73 0.11 0.16 0.05
0.11 0.13 0.16 0.24 0.46 0.97 0.15 0.19 0.07
0.17 0.20 0.25 0.37
4630
0.01 0.02 0.03 0.04 0.03 0.09 0.02 0.02 0.01
1500
0.03 0.04 0.06 0.08 0.09 0.24 0.04 0.05 0.02
0.05 0.06 0.09 0.11 0.14 0.34 0.05 0.08 0.02
0.06 0.08 0.11 0.15 0.20 0.46 0.07 0.10 0.04
3500
0.11 0.13 0.18 0.23 0.35 0.77 0.13 0.18 0.06
0.13 0.16 0.21 0.27 0.45 0.95 0.17 0.22 0.08
0.16 0.19 0.25 0.32 0.55 1.15 0.21 0.27 0.10
5200
0.01 0.02 0.03 0.03 0.04 0.12 0.02 0.03 0.01
2000
2500
0.03 0.05 0.07 0.08 0.15 0.36 0.06 0.10 0.04
0.03 0.06 0.09 0.10 0.20 0.47 0.09 0.14 0.05
0.05 0.08 0.11 0.12 0.27 0.60 0.11 0.18 0.06
4500
0.07 0.11 0.16 0.18 0.42 0.89 0.18 0.27 0.10
0.09 0.14 0.19 0.21 0.50 1.05 0.21 0.32 0.12
0.11 0.16 0.22 0.25 0.60 1.23 0.26 0.38 0.14
6500
0.03 0.02 0.05 0.05 0.05 0.15 0.02 0.07 0.02
2000
2500
0.03 0.02 0.05 0.06 0.08 0.22 0.02 0.03 0.01
1400
0.05 0.05 0.10 0.11 0.23 0.53 0.06 0.08 0.03
2300
2000
0.05 0.06 0.10 0.11 0.13 0.32 0.04 0.12 0.04
0.07 0.08 0.12 0.15 0.17 0.41 0.06 0.14 0.06
0.08 0.10 0.15 0.18 0.23 0.52 0.08 0.16 0.07
0.10 0.13 0.18 0.22 0.29 0.64 0.10 0.19 0.09
0.19 0.26 0.34 0.42 0.60 1.23 0.21 0.31 0.18
0.23 0.32 0.41 0.51
0.02 0.01 0.03 0.03 0.02 0.08 0.02 0.07 0.02
3000
4000
5000
0.07 0.07 0.10 0.11 0.24 0.55 0.14 0.23 0.05
0.20 0.24 0.30 0.31
0.25 0.25 0.11
0.26 0.26 0.11
4000 Max CFM for Evap
5200 Max CFM for Evap
0.11 0.11 0.15 0.16 0.20 0.46 0.18 0.28 0.16
7000
0.19 0.20 0.24 0.27 0.35 0.77 0.33 0.42 0.28
0.24 0.25 0.30 0.33 0.45 0.95 0.42 0.51 0.35
0.32 0.33 0.38 0.42 0.60 1.23 0.57 0.64 0.47
0.02 0.02 0.04 0.04 0.05 0.16 0.02 0.03 0.01
3000
3500
0.36 0.38 0.43 0.47
0.02 0.02 0.02 0.03 0.04 0.14 0.03 0.04 0.01
0.03 0.03 0.04 0.04 0.08 0.22 0.05 0.07 0.01
5000 0.04 0.04 0.05 0.06 0.12 0.31 0.07 0.11 0.02
0.06 0.05 0.07 0.08 0.18 0.42 0.10 0.17 0.04
7000
0.09 0.09 0.12 0.13 0.32 0.70 0.19 0.30 0.08
0.11 0.12 0.15 0.16 0.40 0.86 0.24 0.38 0.10
0.13 0.14 0.18 0.19 0.50 1.04 0.30 0.48 0.14
0.15 0.17 0.22 0.23 0.61 1.24 0.36 0.58 0.17
11050 Max CFM for Evap
➀
Accesssory / Option static pressure losses are approximate values only. Please consult the Accuspec selection software for static pressure losses at other than listed CFM.
32
AIR 5-565.2
BloWer Performance data
75
100/125
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
- / 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
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
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
100°F / -
79°F / -
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 / -
table 33.1 - unit Performance tables
air rise
75
end 100 a,B c,d
100/125 c,d
start 125 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
➀ ➁
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
556 0.09 679 0.15 871 0.22 1031 0.29 1170 0.37 1296 0.45 1411 0.63 1617 0.81 1800 1.01 1968
700 0.14 747 0.21 924 0.29 1074 0.37 1206 0.46 1327 0.55 1438 0.75 1638 0.95 1818 1.17 1982
800 0.18 801 0.26 966 0.35 1109 0.44 1237 0.54 1354 0.64 1462 0.84 1658 1.06 1832 1.30 1996
1000 0.29 917 0.39 1062 0.50 1192 0.60 1310 0.72 1419 0.83 1522 1.07 1709 1.32 1879 - -
1200 0.45 1042 0.57 1171 0.69 1289 0.82 1397 0.94 1499 1.08 1595 1.35 1773 -
1400 0.66 1173 0.80 1288 0.94 1395 1.08 1495 1.23 1589 1.38 1680 - - -
1600 0.93 1308 1.09 1412 1.25 1509 1.42 1601 -
1800
-
-
-
- -
-
1539
- - - - - - - -
- - - - - - - - - - - - - -
-
800
1000 0.20
1200 0.19 705 0.27 862 0.35 1003 0.44 1131 0.54 1250 0.65 1361 - - -
-
-
1600
-
1400 0.27 770 36.00 912 0.45 1041 0.55 1161 0.66 1273 0.77 1377 1.00 1572 -
-
- -
0.37 839 0.47 968 0.57 1087 0.68 1199 0.80 1304 0.92 1403 1.17 1589 1.44 1760 1.72 1920
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
2300 0.94 1104 1.08 1200 1.22 1292 1.37 1380 1.52 1465 1.67 1547 1.98 1703 2.31 1850 2.65 1990
2778 1.59 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 0.13 670 0.21 846 0.29 993 0.38 1121 0.47 1236 0.56 1342 0.77 1532 0.99 1702 1.22 1856
1200 0.22 758 0.31 916 0.41 1052 0.52 1173 0.62 1282 0.74 1384 0.97 1568 1.22 1733 1.48 1884
1400 0.30 828 0.41 975 0.53 1103 0.64 1218 0.76 1323 0.89 1422 1.15 1600 1.42 1762 1.70 1910
1800 0.55 982 0.69 1108 0.83 1220 0.98 1325 1.12 1422 1.27 1513 1.58 1681 1.90 1834 2.23 1976
2200 0.93 1145 1.10 1254 1.27 1354 1.44 1449 1.61 1537 1.79 1621 2.15 1778 2.52 1923 2.90 2057
2600 1.45 1315 1.65 1410 1.85 1500 2.05 1585 2.25 1666 2.46 1744 1.35 1638 -
3000 2.16 1489 2.39 1573 2.61 1654 2.84 1731 -
1800 0.28 497 0.41 622 0.56 735 0.72 837 -
2200 0.43 553 0.58 662 0.75 762 0.93 855 1.12 942 1.33 1025 -
-
-
- -
- -
- -
- -
-
-
-
-
-
-
-
-
-
-
-
- -
- -
-
-
2600 0.63 614 0.81 710 1.00 800 1.20 885 1.41 965 1.63 1042 - - - - -
3000 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 1.26 748 1.48 825 1.72 899 1.96 970 2.21 1038 2.47 1104 3.01 1229 3.58 1347 4.17 1459
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 - -
4630 2.93 969 3.23 1028 3.53 1085 3.84 1140 4.16 1194 4.48 1247 - - - - - -
1111 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
1296
1400 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
1800 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
2200 1.00 1166 1.16 1264 1.32 1356 1.49 1444 1.66 1529 1.84 1610 2.20 1762 2.57 1906 2.96 2041
2600 1.58 1344 1.76 1429 1.95 1510 2.14 1589 2.34 1664 2.54 1737 2.95 1877 -
3000 2.35 1526 2.57 1600 2.78 1673 3.00 1743 -
1400 0.17 474 0.28 615 0.40 737 - - -
-
-
-
-
-
-
1800 0.28 526 0.41 650 0.55 760 0.70 859 0.85 952 - -
- -
- -
- -
-
-
-
2200 0.44 588 0.59 697 0.75 796 0.91 887 1.09 972 1.27 1052 1.67 1201 -
-
-
-
-
-
- -
- -
- - - - - - - - - - - -
-
- -
- -
-
2600 0.67 657 0.83 753 1.01 842 1.19 925 1.39 1004 1.59 1078 2.02 1218 2.47 1348 2.96 1469
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 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
3800 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
4200 2.40 959 2.66 1023 2.92 1085 3.18 1145 3.45 1204 3.73 1260 4.30 1369 4.90 1472 - -
4700 3.30 1058 3.58 1116 3.87 1172 4.16 1227 4.46 1281 4.76 1333
5200 1212
- - - - - -
- - - - - - - - - - - - - -
1481 0.36 871 0.48 1016 0.60 1144 0.73 1259 0.85 1366 0.99 1465 1.26 1646 1.54 1808 1.84 1958
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 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
2000 0.76 1077 0.92 1197 1.08 1306 1.24 1407 1.40 1502 1.57 1592 1.91 1758 2.26 1910 2.62 2051
2250 1.04 1181 1.21 1291 1.39 1393 1.57 1488 1.75 1577 1.94 1663 2.31 1822 2.69 1969 - -
2500 1.38 1288 1.57 1389 1.77 1484 1.97 1573 2.17 1658 2.37 1739 2.78 1892 -
2750 1.79 1396 2.00 1490 2.22 1579 2.44 1663 2.66 1743 2.88 1820
3000 2.28 1506 2.51 1593 2.75 1677 2.98 1756 -
- -
-
-
-
-
-
- -
- -
- - - - - - -
1750 0.29 594 0.43 723 0.58 838 0.75 944 0.94 1042 1.14 1134 1.58 1303 2.07 1458 2.60 1600
2000 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
2500 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
3000 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
3500 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 2.40 1091 2.65 1157 2.91 1221 3.18 1284 3.46 1345 3.75 1404 4.35 1518 4.98 1628 - -
4500 3.34 1211 3.62 1270 3.91 1329 4.21 1385 4.51 1441 4.82 1495 -
- - - - - - - - - - - - - -
1750 0.20 425 0.33 546 0.48 653 - - -
2000 0.26 449 0.40 562 0.56 662 0.74 754 -
-
-
- -
- -
2500 0.42 507 0.58 603 0.75 692 0.94 774 1.16 851 1.38 925
-
- -
- -
- -
- -
-
-
-
3000 0.65 571 0.83 654 1.02 732 1.23 807 1.45 877 1.69 944 2.21 1071 -
- -
3500 0.97 639 1.17 713 1.38 782 1.60 850 1.84 914 2.10 975 2.64 1093 3.23 1202 3.86 1307
4000 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 1.90 783 2.14 842 2.40 899 2.66 955 2.94 1008 3.23 1061 3.84 1161 4.48 1258 -
5000 2.54 858 2.81 911 3.08 963 3.37 1014 3.67 1064 3.98 1112 4.62 1206 -
-
5500 3.32 933 3.61 982 3.91 1030 4.22 1077 4.54 1123 4.87 1168 -
6000 4.25 1009 4.57 1054 4.89 1099 - - - - - - -
-
-
-
-
-
-
-
-
-
-
-
- -
- -
- -
- -
-
-
- -
-
-
➀
Total static pressure should include external static pressure and accessory / option static pressure from Table 32.1. Unit internal resistance has been included in the unit performance tables.
➁
Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed
CFM / static pressures.
AIR 5-565.2
33
BloWer Performance data
table 34.1 - unit Performance tables
➀ ➁
digit
250/300
start 300
250/300
start 300
250/300
end 250
350/400
start 400
350/400 start 400
350/400 start 400 e,f
G,H i, J, K e,f
G,H i,J,K rise
cfm
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
37°F / 44°F
34°F / 40°F
31°F / 37°F
28°F / 34°F
46°F / 56°F
37°F / 44°F
31°F / 37°F
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
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
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 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
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 - -
-
-
-
-
1275
-
-
-
- - - - - - - - - - - -
1852 - - 0.34 519 0.49 623 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 - -
-
4.72
- -
984 - - - - - - - - - - - -
- - - 4000 - - 0.97 507 1.25 583 1.56 654 1.89 719 2.24 781 - -
5000 - - 1.51 560 1.84 626 2.19 688 2.56 748 2.95 804 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
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 -
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 - -
1040
- -
- -
- -
- - - - - - - - - -
6500
2593 - - - - 0.77 561 1.04 639 1.34 709 1.66 774 2.36 891 3.14 995 4.00 1090
2963 - - - - 0.89 571 1.18 646 1.49 715 1.81 779 2.54 894 3.34 997 4.20 1091
4000 - - 1.07 533 1.37 609 1.69 679 2.03 742 2.40 802 3.18 910 4.04 1009 4.96 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
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
1067
- - - - - - -
- - - - - - - - - - - - - -
-
-
➀
Total static pressure should include external static pressure and accessory / option static pressure from Table 32.1. Unit internal resistance has been included in the unit performance tables.
➁
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
AIR 5-565.2
BloWer Performance data
table 35.1 - unit Performance tables
➀ ➁
500/600
start 500
700/800
start 800
700/800
start 800 unit size
500/600
start 600 digit 16
G or H
500/600
start 600
end 500 i, J, K l
G or H i, J, K
700/800
end 700
840/960
end 840
840/960
end 840 l i, J, K l air total static Pressure inches "W.c.
temp 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 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
74°F / 89°F 5000 2.13 755 2.43 818 2.75 878 3.07 936 3.40 991 3.74 1044 4.44 1145
67°F / 81°F 5500 2.77 818 3.10 876 3.44 932 3.79 986 4.15 1038 4.51 1088
62°F / 74°F 6000 3.53 882 3.89 936 4.25 988 4.63 1038
57°F / 68°F 6500 4.41 946 4.80 996
120°F / -
- - - -
3086 0.46 401 0.69 496 0.95 580 1.23 657
1.54
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
675 - - - - - - - - - -
-
-
-
-
-
-
93°F / 111°F 4000 0.82 464 1.09 544 1.39 618 1.71 686 2.05 749 2.42 810 - - - -
74°F / 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 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
46°F / 56°F 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
41°F / 49°F 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
- / 44°F
- / 43°F
- / 40°F
- / 40°F
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
62°F / 74°F 6000 1.69 512 1.97 565 2.26 615 2.57 664 2.89 710 3.23 755 - -
53°F / 63°F 7000 2.57 580 2.89 626 3.22 671 3.56 714 3.92 756 4.29 797 5.06 874
-
-
-
-
-
-
-
-
- -
46°F / 56°F 8000 3.73 650 4.09 691 4.46 731 4.84 770 5.23 808 5.64 845 6.47 916 7.35 984
-
-
-
-
-
- -
-
- -
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
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
86°F / 99°F 6000 3.68 900 4.06 956 4.46 1010 4.87 1062
4.61
- - - -
-
-
-
-
965 - - - - - - - - - - - - - - - -
-
-
-
-
-
-
-
-
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 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
58°F / 66°F 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 -
-
-
-
-
- -
-
40°F / 46°F 13000 17.88 1098 18.59 1129 19.30 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
- / 41°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
-
-
-
-
-
- -
-
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 - - - - - - - -
-
- -
-
➀
Total static pressure should include external static pressure and accessory / option static pressure from Table 32.1. Unit internal resistance has been included in the unit performance tables.
➁
Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed CFM / static pressures.
AIR 5-565.2
35
BloWer sHeave assemBly data
adjusting the Blower drive setting
Based on the Sheave Arrangement, Tables 36.1 through 37.5 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 30-31 to determine what blower rpm is required to meet the job specifications.
figure 36.1 - 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 38.1 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 36.1 - 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 36.2 - 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
36
AIR 5-565.2
BloWer sHeave assemBly data
Blower Sheave Assembly Numbers (Con’t) table 37.1 - 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 Q 3H35127B17
143 to 145
182 or 184
213 or 215
D 3H35127B4 G 3H35127B7 I 3H35127B9
E
K
L 3H35127B12
3H35127B5 H 3H35127B8 J 3H35127B10 M 3H35127B13
3H35127B11 N
3H35127B14
O 3H35127B15
P 3H35127B16
table 37.2 - 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
182 or 184
213 or 215
C 3H35128B3 E 3H35128B5 H 3H35128B8 J 3H35128B10
F 3H35128B6 I 3H35128B9 K 3H35128B11 M 3H35128B13
L 3H35128B12 N
3H35128B14
table 37.3 - 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 37.4 - 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 37.5 - digit 16 = l (20-18 Blower units)
motor frame 491-649 626-765 rPm range
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
A 3H36622B1 C 3H36622B3
B
254
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
AIR 5-565.2
37
BloWer sHeave assemBly data
table 38.1 - 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
1001 966 932 897 863 828 794 759 725 690 656
1265 1236 1208 1179 1150 1121 1093 1064 1035 1006 978
3H35126B6-8
3H35126B9-11
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
1009 991 973 954 936 918 899 881 863 844 826
1161 1144 1128 1111 1095 1078 1062 1045 1028 1012 995
3H35130B5-6
3H35130B13-14
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
38
AIR 5-565.2
BloWer sHeave assemBly data
9
10
7
8
5
6
3
4
1
2
13
14
9
10
11
12
15
16
17
11
12
13
14
4
5
2
3
9
10
11
1
6
7
8
7
8
5
6
3
4
1
2
13
14
15
9
10
11
12
7
8
5
6
3
4
1
2
table 39.1 - Blower sheave assembly components
sheave assembly
Prefix
3H35125
3H35126
3H35127
3H35128
Suffix
Browning
Belt # motor sheave
Pitch dia
(in.)
5
5
4.4
4.4
3.8
3.8
3.8
5
5.6
5.6
2.9
2.9
5.6
5.6
5.6
5.6
5.2
5
5
5.2
5
5.6
4.4
2.9
4.4
4.4
4.4
5.6
5.6
5.6
2.9
4.4
3.8
3.8
5.6
2.9
2.9
4.4
4.4
3.8
3.8
3.8
5
5.6
5.6
5.2
5.6
5.2
5.6
3.8
3.8
5
5
2.9
2.9
2.9
3.8
0.625
0.875
1.125
0.625
0.875
1.125
0.875
1.125
0.625
0.875
1.125
0.625
0.875
1.125
0.5
0.625
1.375
0.875
1.125
1.375
1.125
1.375
0.625
0.875
0.625
0.875
0.5
0.625
0.5
0.625
0.875
0.5
0.625
0.5
0.625
0.875
0.625
0.875
0.625
0.625
0.875
1.125
1.125
0.875
1.125
1.375
1.125
1.375
0.625
0.5
0.625
0.875
0.625
0.875
1.125
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
8
7
6.5
8.5
6.7
6
6
6.2
5.2
5.7
8
8.5
9
8.5
0.75
0.75
1
1
A48
A50
A43
A45
A46
A45
A47
A48
A37
A39
A42
A43
A38
A38
A40
A37
A49
A45
A47
A49
A45
A48
A43
A35
A34
A34
A33
A34
A37
A38
A38
A35
A31
A31
A35
A30
A31
A34
A35
A34
A34
A36
A54
A53
A54
A54
A52
A52
A53
A50
A52
A53
A52
A47
A48
A48
A50
sheave assembly
Prefix
3H35129
3H35130
3H36622
Suffix
15
16
17
18
19
20
9
10
11
12
13
14
21
22
23
24
25
26
5
6
3
4
7
8
17
18
19
20
1
2
13
14
5
6
15
16
3
4
1
2
15
16
17
18
19
20
21
9
10
11
12
13
14
5
6
3
4
7
8
1
2
AIR 5-565.2
Browning
Belt # motor sheave
Pitch dia
(in.)
7
7
6
7
7
7
6
7
7
5.3
5.9
6
7
7
7
7
7
7
4.1
4.1
5.5
4.7
5.5
6
7
7
7
7
4.1
4.1
7
7
7
7
7
7
5.5
5.5
7
7
7
7
7
7
7
7
7
5.9
5.9
5.3
5.5
5.5
5.5
4.1
4.1
4.1
4.7
4.7
4.7
5.5
5.9
1.625
1.875
1.875
1.375
1.625
1.625
1.625
1.875
1.875
1.125
1.375
1.625
1.875
1.875
1.625
1.625
1.875
1.875
0.875
1.125
1.375
1.125
1.375
1.625
1.875
1.875
1.875
1.875
0.875
1.125
1.625
1.625
1.625
1.625
1.625
1.625
1.875
1.875
1.875
1.875
1.125
1.375
1.625
1.625
1.375
1.625
1.625
1.125
1.375
1.125
1.375
1.625
1.625
0.625
0.875
1.125
0.625
0.875
1.125
1.375
0.875
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
Qty (2) B74
Qty (2) B74
Qty (2) B78
Qty (2) B78
Qty (2) B77
Qty (2) B77
Qty (2) B82
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
B73
B72
B78
B78
B70
B77
B77
BX75
BX75
BX68
BX68
BX75
BX75
B71
B71
B70
BX71
BX71
BX71
BX71
BX77
Blower sheave
Bore
(in.)
10.9
12.4
8.9
9.4
10.4
10.4
9.4
1
1.44
1.44
39
9.4
9.4
10.4
9.4
12.4
10.4
9.4
8.4
10.9
8.9
12.4
8.9
10.4
11.4
13.4
8.4
9.4
11.4
electrical data / motor data
total unit amp draw
The total unit amp draw is a combination of the motor, the control step down transformer, and the power exhauster amp draw. The control step down transformer includes damper actuators, ignition controllers, gas valves, control relays, amplifiers, and motor starters.
Unit Amp Draw (Table 40.1) =
Motor Amp Draw (Tables 40.2 to 41.2) =
+
Total Amp Draw =
table 40.1 - unit amps
digit 14 Power exhauster amp draw supply voltage a
115/60/1
B 208/60/1 c 230/60/1 d 208/60/3 e 230/60/3
f 460/60/3 ➅ 0 0.09 0.16 0.33 0.54
0.30 ➁ 0.65 ➂ 1.3 ➃
G
0 ➀
digit 15 - transformer
1 2 3 4 75-175 200-400 500-800 840-960
0 0.35 0.65 1.3 2.17
0 0.19 0.36 0.72 1.2
0 0.17 0.33 0.65 1.09
0 0.19 0.36 0.72 1.2
0 0.17 0.33 0.65 1.09
1.4
0.7
0.6
0.7
0.6
model size
2.4
1.4
1.3
1.4
1.3
575/60/3 ➅ 0 0.07 0.13 0.26 0.43
0.24 ➁ 0.52 ➂
4.8
2.8
2.6
2.8
2.6
1.1 ➃
7.2
4.2
3.9
4.2
3.9
2.0 ➄
1.6 ➄
➀
Unit controls amp draw is included in master unit amp draw.
➁
Requires a 250 VA transformer.
➂
Requires a 500 VA transformer.
➃
Requires a 750 VA transformer.
➄
Requires a 1000 VA transformer.
➅
For Digits F (460V) and G (575V), amp draw shown is on primary (line) side of required step-down transformer.
table 40.2 - motor data ➀ ➁ table 40.3 - 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)
11.0
12.6
14.0
15.0
15.0
20.4
20.0
6.6
9.0
9.0
9.2
11.0
33.5
28.0
-
-
56
56
56H
56H
56H
145T
182T
56
48Y
56
56
56
184T
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
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)
1
(D or P)
1-1/2
(E or Q)
6.3
7.0
7.5
7.5
4.6
5.4
5.5
17.4
14.6
22.0
21.5
3.3
2.5
4.5
5.4
6.2
6.9
7.8
7.8
10.0
10.8
-
-
4.0
4.3
5.5
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)
ODP (1)
TE (5)
ODP (1)
TE (5)
ODP (1)
TE (5)
ODP (1)
TE (5)
ODP (1)
TE (5)
ODP (1)
TE (5)
2
(F or R)
ODP (1)
TE (5)
ODP (1)
10.2
10.0
16.8
145T
182T
184T
3
(G or S)
TE (5) 14.0
184T n/a
5
(H or T)
ODP (1)
TE (5)
20.0
19.5
184T
184T 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. n/a n/a n/a
56
56H
56H
56H
56
56
56
184T
184T
184T
184T
56
48Y
56
56
56
56H
56H
56H
145T
182T
-
-
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
40
AIR 5-565.2
motor data
table 41.1 - 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 41.2 - 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
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.
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
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%
AIR 5-565.2
41
dimensions - unit
figure 42.1 - iBG indoor Gravity vented Blower Package unit dimensions
Qty (4) Drill Locator Dimples for
Field Drilled Electrical Conduit
Entry Holes (spaced 2.0" apart)
500 - 800 model shown figure 42.2 - icG indoor Gravity vented cooling Package unit dimensions
Qty (4) Drill Locator Dimples for
Field Drilled Electrical Conduit
Entry Holes (spaced 2.0" apart)
1
2
table 42.1 - iBG/icG indoor Gravity vented unit dimensions (all dimensions in inches)
size type dimensions
(digit 16) furnaces a B c d e f G H
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
700/800
G or H
G or H
2
2
1
1
J K l n P s conn.
1 37.75 19.07 15.21 28.75 18.00 25.00 20.02 39.23 32.06 38.37 12.65 5 40.80 87.77 1/2
1 37.75 19.07 17.70 28.75 21.00 25.00 20.02 39.23 34.56 38.37 15.14 6 40.80 87.77 1/2
1 37.75 19.07 21.96 28.75 24.00 25.00 23.99 39.23 38.82 38.37 19.41 7 40.80 87.77 1/2
1 37.75 23.07 24.09 32.75 27.00 28.00 23.99 43.23 40.94 42.37 21.60 7 44.80 87.77 1/2 / 3/4
3775 23.07 27.13 32.75 30.00 28.00 29.96 43.23 44.05 42.37 24.60 8/10 44.80 87.77
37.75 23.07 38.63 32.75 42.00 28.00 41.90 43.23 55.57 42.37 36.14 10 44.80 87.77
37.75 23.07 27.13 32.75 n/a
37.75 23.07 38.63 32.75 n/a
3/4
3/4 n/a 29.96 43.23 44.05 42.37 24.60 8/10 44.80 120.90 3/4 n/a 41.90 43.23 55.57 42.37 36.14 10 44.80 120.90 3/4
➀
For Right Hand Access Units - Drill Locator Dimples for Field Drilled Electrical Conduit Entry Holes (spaced 2.0" apart)
➁
For Left Hand Access Units - Drill Locator Dimples for Field Drilled Electrical Conduit Entry Holes (spaced 2.0" apart)
42
AIR 5-565.2
dimensions - unit
figure 43.1 - iBG indoor Gravity vented Blower Package unit dimensions with Blower type i, J, K, or l
Qty (4) Drill Locator Dimples for
Field Drilled Electrical Conduit
Entry Holes (spaced 2.0" apart)
500 - 800 model shown figure 43.2 - icG indoor Gravity vented cooling Package unit dimensions with Blower type i, J, K, or l
J Over Roof
L
7.65
1
G (INSIDE)
2
5.29 9.21
3.00
43.23
44.80
Qty (4) Drill Locator Dimples for
Field Drilled Electrical Conduit
Entry Holes (spaced 2.0" apart)
table 43.1 - iBG/icG indoor Gravity vented unit dimensions with Blower type i, J, K, or l
(all dimensions in inches)
model Blower type Qty. of
size (digit 16) furnaces c
250/300
I, J, or K
350/400
I, J, or K
1
1
e G J dimensions l n s
u ➂ W
27.13 30.00 29.96 44.05 24.60 8/10 123.35 n/a
38.63 42.00 41.90 55.07 36.14 10 123.35 n/a
➂
Gas
conn.
n/a n/a 3/4 n/a n/a 3/4
500/600 I, J, K, or L
700/800 I, J, K, or L
840/960 I, J, K, or L
2
2
3
27.13 n/a 29.96 44.05 24.60 8/10 156.76 29.74 6.5 41.62 3/4
38.63 n/a 41.90 55.57 36.14 10 156.76 29.74 6.5 41.62 3/4
38.63 n/a 41.90 55.57 36.14 10 185.99 29.74 6.5 41.62 3/4
➀
For Right Hand Access Units - Drill Locator Dimples for Field Drilled Electrical Conduit Entry Holes (spaced 2.0" apart)
➁
For Left Hand Access Units - Drill Locator Dimples for Field Drilled Electrical Conduit Entry Holes (spaced 2.0" apart)
➂
Applies to units with Digit 16 = L only.
AIR 5-565.2
43
dimensions - unit
figure 44.1 - iBP indoor Power vented Blower Package unit dimensions
30.48
30.07
51.20
6" VENT
CONNECTOR
1.36
23.07 (HEIGHT)
X
C (WIDTH) 17.40
37.80
34.00
2.17
24.00
8.97
10.26 (APPROX)
9.21
5.65 (APPROX)
QTY (4) DRILL LOCATOR DIMPLES FOR
FIELD DRILLED ELECTRICAL CONDUIT
ENTRY HOLES (SPACED 2.0" APART)
120.90
500 - 800 model shown
24.00
4.35
1.50
figure 44.2 - icP indoor Power vented cooling Package unit dimensions
114.11
32.43
30.48
51.20
2.17
19.23
N
1.36
34.00
F (HEIGHT)
X
E (WIDTH)
D
P
A
24.00
7.65
QTY (4) DRILL LOCATOR DIMPLES FOR
FIELD DRILLED ELECTRICAL CONDUIT
ENTRY HOLES (SPACED 2.0" APART)
116.98
24.00
4.35
9.21
1.50
J
OVER ROOF
G
G
24.00
5.29
5.29
BOTTOM DRILL LOCATOR
DIMPLES FOR FIELD DRILLED
ELECTRICAL CONDUIT ENTRY
HOLES (SPACED 2.0" APART)
(ONLY ON ACCESS SIDE)
J
OVER ROOF
24.00
9.21
43.23
3.00
9.21
H
5.29
5.29
BOTTOM DRILL LOCATOR
DIMPLES FOR FIELD DRILLED
ELECTRICAL CONDUIT ENTRY
HOLES (SPACED 2.0" APART)
(ONLY ON ACCESS SIDE)
3.00
table 44.1 - iBP/icP indoor Power vented unit dimensions (all dimensions in inches)
size (digit 16) furnaces a
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
700/800
G or H
G or H
2
2
1
1
B c d e f G H J K l n P s conn.
1 37.75 19.07 15.21 28.75 18.00 25.00 20.02 39.23 32.06 38.37 12.65 5 40.80 87.77 1/2
1 37.75 19.07 17.70 28.75 21.00 25.00 20.02 39.23 34.56 38.37 15.14 6 40.80 87.77 1/2
1 37.75 19.07 21.96 28.75 24.00 25.00 23.99 39.23 38.82 38.37 19.41 7 40.80 87.77 1/2
1 37.75 23.07 24.09 32.75 27.00 28.00 23.99 43.23 40.94 42.37 21.60 7 44.80 87.77 1/2 / 3/4
3775 23.07 27.13 32.75 30.00 28.00 29.96 43.23 44.05 42.37 24.60 8/10 44.80 87.77
37.75 23.07 38.63 32.75 42.00 28.00 41.90 43.23 55.57 42.37 36.14 10 44.80 87.77
37.75 23.07 27.13 32.75 n/a
37.75 23.07 38.63 32.75 n/a
3/4
3/4 n/a 29.96 43.23 44.05 42.37 24.60 8/10 44.80 120.90 3/4 n/a 41.90 43.23 55.57 42.37 36.14 10 44.80 120.90 3/4
44
AIR 5-565.2
dimensions - unit
figure 45.1 - iBP indoor Power vented Blower Package unit dimensions with Blower type i, J, K, or l
30.48
30.07
147.59
50.37
29.74
6.44
36.68
J
OVER ROOF
41.62
6" VENT
CONNECTOR
1.36
23.07 (HEIGHT)
X
C (WIDTH) 17.40
37.85
2.17
24.00
G
24.00
8.97
10.26 (APPROX)
5.65 (APPROX)
QTY (4) DRILL LOCATOR DIMPLES FOR
FIELD DRILLED ELECTRICAL CONDUIT
ENTRY HOLES (SPACED 2.0" APART)
156.76
500 - 800 model shown
24.00
9.21
4.35
5.29
5.29
BOTTOM DRILL LOCATOR
DIMPLES FOR FIELD DRILLED
ELECTRICAL CONDUIT ENTRY
HOLES (SPACED 2.0" APART)
(ONLY ON ACCESS SIDE)
9.21
43.23
3.00
figure 45.2 - icP indoor Power vented cooling Package unit dimensions with Blower type i, J, K, or l
32.54
30.48
50.37
36.68
J
OVER ROOF
2.17
N
1.36
30.5 (HEIGHT)
E (WIDTH)
D
19.23
P
34.00
34.00
37.85
24.00
G
24.00
9.21
43.23
7.65
FIELD DRILLED ELECTRICAL CONDUIT
ENTRY HOLES (SPACED 2.0" APART)
24.00
9.21
4.35
1.50
5.29
5.29
BOTTOM DRILL LOCATOR
DIMPLES FOR FIELD DRILLED
HOLES (SPACED 2.0" APART)
(ONLY ON ACCESS SIDE)
3.00
152.83
table 45.1 - iBP/icP indoor Power vented unit dimensions with Blower type i, J, K, or l
(all dimensions in inches)
model Blower type Qty. of
size (digit 16) furnaces c
250/300
I, J, or K
350/400
I, J, or K
1
1
e G J dimensions l n
Gas s u
➀
W X conn.
27.13 30.00 29.96 44.05 24.60 8/10 123.35 n/a
38.63 42.00 41.90 55.07 36.14 10 123.35 n/a n/a n/a 3/4 n/a n/a 3/4
500/600 I, J, K, or L
700/800 I, J, K, or L
840/960 I, J, K, or L
2
2
3
27.13 n/a 29.96 44.05 24.60 8/10 156.76 29.74 6.5 41.62 3/4
38.63 n/a 41.90 55.57 36.14 10 156.76 29.74 6.5 41.62 3/4
38.63 n/a 41.90 55.57 36.14 10 185.99 29.74 6.5 41.62 3/4
➀
Applies to units with Digit 16 = L only.
AIR 5-565.2
45
dimensions - Base
figure 46.1 - unit Base dimensions
0.63
B
J
2.36
0.75" Suspension
Hanging Locations
(Typical 4 Corners)
A
C To end of unit
M
D
K
E Inside
24.00 Inside oint g
M
1.45
4.35
L
N
table 46.1 - indoor Power vented Blower Package units (all dimensions in inches)
model Blower type
dimensions
75
100/125
150/175
200/225
250/300 E,F,G, or H 87.77
250/300
350/400
I, J, or K
I, J, or K
46.75 81.30
123.35 46.75 117.26
350/400 E,F,G, or H 87.77 58.27 81.30
123.35 58.27 117.26
29.46
29.46
41.40
41.40
43.89 7.21
43.89 7.21
55.41 7.00
55.41 7.00
500/600
G, H 120.90 46.75 111.68 34.12 29.46 89.14 34.12 43.89 7.21
500/600 I, J, K, or L 156.76 46.75 147.53 34.12 29.46 117.82 82.27 43.89 7.21
700/800
G, H 120.90 58.27 111.68 34.12 41.40 89.14 34.12 55.41 7.00
700/800 I, J, K, or L 156.76 58.27 147.53 34.12 41.40 117.82 82.27 55.41 7.00
840/960 I, J, K, or L 185.99 58.27 176.75 30.31 41.40 147.06 63.36 147.06 55.41 7.00
table 46.2 - indoor Power vented cooling Package units (all dimensions in inches)
model Blower type size (digit 16) a B c
dimensions e f G
75
100/125
150/175
200/225
All
All
All
All
250/300 E, F, G, or H 116.98 46.75 114.07 29.46 81.88
250/300
I, J, or K
350/400 E, F, G, or H 116.98 58.27 114.07 41.40 81.88
350/400
I, J, or K
J m
46
AIR 5-565.2
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
Coil for Right Hand Units
(Digit 9 = R)
Headers on opposite side for Left Hand Units
H
1.5
S
FRONT VIEW
FL
FH
1.5
1.5
W
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 cooling mBH
All
fH
27.5
H
30.5
s
1.5
dX - single circuit
➀
fl i l
18 25 21
100/125
150/175
All
All
27.5
27.5
30.5
30.5
1.5
1.5
21
24
28
31
200/225
Below 185 MBH
185 MBH & Up
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
27
27
30
34
34.5
37
250/300
350/400
32.5
32.5
34.5
34.5
0.5
0.5
30
42
42
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)
45
24
27
30
30
33
33
45
Airflow Direction
TOP VIEW
L
1.5
1.5
Coil for Right Hand Units
(Digit 9 = R)
Headers on opposite side for
Left Hand Units
H
S
FRONT VIEW
FL
FH
V
2.25
2.25
1.8
W
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
35.75
28.5
28.5
40.25
38.75
50.5
31.5
43.25
rows 4 6
W 7.5 10
Return Water Line
Connection turned 90° in direction of airflow
Airflow
Direction
SIDE VIEW
Supply Water Line
Connection turned 90° in direction of airflow
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
AIR 5-565.2
47
dimensions/WeiGHts
figure 48.1 - remote Panel dimensions
C
5.57
1.50
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
3.53
A
3.53
1. Holes visable on right side are
also on left side in the same location.
2. Holes on top are also on the back
1" down vertically.
B
2.56
3.38
2.13
table 48.1 - Blower Package unit operating Weights
(all weights in pounds)
model Blower type
size (digit 16) unit motor
75 All 236
100/125 All 272
150/175 All 308
200/225 All 365
250/300 E,F,G, or H 396
250/300 I, J, or K 645
350/400 E,F,G, or H 482
350/400 I, J, or K 763
500/600 G or H 577
500/600 I, J, K, or L 826
700/800 G or H 733
700/800 I, J, K, or L 1014
840/960 I, J, K, or L 1265
12
17
8
15
12
17
17
filters dampers dampers fresh air f & ra insulation
6 26 46 5
6 26 46 5
double Wall
(all sections)
38
38
6 29 52
6 29 52
8
15
33
33
60
60
5
7
7
14
43
46
46
93
38
38
33
33
38
38
38
70
70
60
60
70
70
70
7
14
7
14
7
14
14
53
96
46
93
53
96
96
table 48.2 - cooling Package unit operating Weights
(all weights in pounds)
Blower
model size type
dampers dampers fresh &
(digit 16) unit motor filters fresh air return air insulation double Wall
(all sections)
491
250/300 E,F,G, or H 526
See Motor
250/300 I, J, or K 775
Data
350/400 E,F,G, or H 631
350/400 I, J, or K 912
8
15
12
17
33
33
38
38
60
60
70
70
12
19
12
19
87
134
101
144
48
AIR 5-565.2
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 51.1, 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 49.1 - 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
A
A
A
A
A
A
A
A
200/225
250/300
500/600
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
350/400
700/800
figure 49.2 - 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.
AIR 5-565.2
49
maintenance
manifold assembly removal to remove the manifold (refer to figure 50.1)
1. Shut off gas and electric supply.
2. Disconnect gas manifold at ground union joint.
3. Remove the two screws holding the manifold to the heat exchanger support.
4. Slide the manifold through the manifold bracket.
5. Clean the orifices and adjust the air shutters as necessary.
6. Follow steps 3-6 in reverse order to install the manifold assembly.
7. Turn on the electric and gas supply.
8. Check the ground union joint for leaks with a soap solution.
Tighten if necessary.
figure 50.1 - manifold assembly removal
SERIAL PLATE
BURNER SIDE
ACCESS PANEL
ELECTRICAL
JUNCTION
BOX
MANIFOLD
Burner and Pilot assembly removal to remove the burner (refer to figure 50.2)
1. Shut off gas and electric supply.
2. Disconnect the pilot supply line from the gas valve.
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).
7. Replace the burner assembly in reverse order. In replacing 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 50.2 - Burner and Pilot assembly removal
AIR SHUTTERS
(NOT SHOWN)
ARE LOCATED
ON THE
MANIFOLD
PILOT
ASSEMBLY
IGNITION
CABLE
PILOT
SUPPLY
LINE
50
AIR 5-565.2
service & trouBlesHootinG
table 51.1 - troubleshooting
trouble
Power exhauster motor will not start
(models iBP/icP only)
Possible cause
1. Power supply is off.
2. No 24V power to thermostat.
3. Thermostat malfunction.
4. Defective power exhauster relay.
5. Defective power exhauster motor.
Pilot does not light/stay lit
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.
9. Excessive drafts.
10. Pilot orifice fitting leak.
main burners do not light (Pilot is lit) lifting flames (see figure 52.1) yellow tipping
(With propane gas, some yellow tipping is always present.)
flashback
1. Defective valve.
2. Loose wiring.
3. Defective pilot sensor.
4. Defective ignition controller.
5. Improper thermostat wiring.
6. Blocked vent safety switch tripped.
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.
1. Too much primary air.
2. Main pressure set too high.
3. Orifice too large.
floating flames (see figure 52.2) flame rollout (see figure 52.3)
1. Insufficient primary air.
2. Main pressure set too high.
3. Orifice too large.
4. Blocked vent.
1. Main pressure set too high.
2. Orifice too large.
3. Blocked vent.
AIR 5-565.2
Possible remedy
1. Turn on main power.
2. Check control transformer.
3. Check/replace thermostat.
4. Replace power exhauster relay.
5. Replace power exhauster motor.
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, differential pressure switch, gas pressure switches, etc.) Determine and correct problem. Reset if necessary.
9. Find source and re-direct airflow away from unit.
10. Tighten pilot orifice. Flame impingment on pilot sensor may cause pilot sensor to become inoperative.
1. Replace valve.
2. Check wiring to gas valve.
3. Replace pilot sensor.
4. Replace ignition controller.
5. Verify wiring compared to wiring diagram.
6. Refer to page 53.
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.
1. Reduce primary air.
2. Adjust to a maximim 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/correct venting system.
1. Adjust to a maximum of 14" W.C.
2. Check orifice size with those listed on
the serial plate.
3. Clean/correct venting system.
51
service & trouBlesHootinG not enough Heat trouble Possible cause
1. Unit cycling on high limit.➀ a. Obstructions/leaks in duct system.
b. Main pressure set too high.
c. Blower motor not energized.
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.
too much Heat
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.
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 ➆ for the location of either the standard automatic or optional 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.
Possible remedy
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.
52
AIR 5-565.2
service & trouBlesHootinG
Blocked vent safety switch
A manual reset blocked vent safety switch is supplied on all
Model IBG/ICG units and is designed to prevent operation of the main burner in the event there is spillage of flue products into the space. This spillage may occur due to a restricted vent, inadequate vent draw, uninsulated vent pipe in cold ambient, long vent runs, excessive vent diameter, restrictive vent terminal, negative pressure within space, etc. After the cause of the spillage has been corrected, depressing the button of the blocked vent safety switch found on top of the unit may reset the switch.
See Figure 53.2 for additional troubleshooting information.
figure 53.1 - Blocked vent safety switch location
BLOCKED VENT
SAFETY SWITCH
figure 53.2 - Blocked vent safety switch troubleshooting flow chart (model iBG/icG only)
YES
Can negative pressure be corrected?
YES
Remove restriction
Is vent blocked or restricted?
YES
NO
Is there spillage after 5 minutes? (see note 1)
NO
Is there a negative pressure in space? (see note 2)
NO
Is vent in compliance with NFGC?
Replace blocked vent switch;
Does switch still trip?
YES NO
OK
YES
Correct negative pressure
NO
Install power vent accessory
YES NO
Correct vent
Is unit overfired?
Note 1:
Note 2:
To determine spillage, place lit match stick (6" - 8" match stick if possible) 2" - 3" into diverter relief opening and determine direction of the flame (or direction of smoke if flame goes out). If flame or smoke comes back at you, there is spillage. The flame or smoke should be pulled in.
One indication of negative pressure is that outside doors tend to be pulled toward inside of space.
YES
Reduce input
NO
Can one or more of the following be done?
• Lengthen vertical vent run
• Insulate vent
• Use larger diameter vent
• Use less restrictive weather cap
YES
Does unit still trip?
NO
Install power vent accessory
YES
Install power exhauster accessory
OK
NO
AIR 5-565.2
53
model desiGnations
model identification
Duct furnace/make-up air units contain an ETL/ETL Canada certified indoor duct furnace. This duct furnace is combined with either a blower section or a blower and cooling section 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 and cooling 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 or on the side of unit. The part number for some common replacement parts are listed on the serial plate (See Figure 54.1) and the model identification plate (See Figure 55.1). For a complete description of the model number, see Model Identification.
figure 54.1 - serial Plate
IFP
54
AIR 5-565.2
model desiGnations
figure 55.1 - model identification Plate
01101010109-0002
115/208-230
115
60 1 6.6/3.0-3.3
60 1
8.47
10.00
Modine Manufacturing Company
1500 DeKoven Ave., Racine, WI 53403
Phone: 800.828.4328
9F20218
5H71790-
5H63081-20
5H58064-3
5H76183-31
figure 55.2 - serial number designation - furnace 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 - serial number designations - system
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
AIR 5-565.2
55
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
AIR 5-565.2
model nomenclature for system units
indoor duct furnace/make-up air unit 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)
I - Indoor HVAC Unit
2 - unit configuration (uc)
F - Furnace
B - Blower Package - Furnace & Blower
C - Cooling Package - Furnace, Blower & Cooling
3 - venting (v)
G - Gravity
P - Power
4,5,6 - furnace input rating (mBH) (output on 840 & 960)
75 - 75,000 Btu/Hr Input
100 - 100,000 Btu/Hr Input
125 - 125,000 Btu/Hr Input
150 - 150,000 Btu/Hr Input
175 - 175,000 Btu/Hr Input
200 - 200,000 Btu/Hr Input
225 - 225,000 Btu/Hr Input
250 - 250,000 Btu/Hr Input
300 - 300,000 Btu/Hr Input
350 - 350,000 Btu/Hr Input
400 - 400,000 Btu/Hr Input
500 - 500,000 Btu/Hr Input
600 - 600,000 Btu/Hr Input
700 - 700,000 Btu/Hr Input
800 - 800,000 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
11 - Gas type (Gt)
N - Natural with ignition controller
P - Propane with ignition controller
12 - Gas valve (Gv)
1 - Single Stage
2 - Two Stage
6 - Electronic Modulation Slave
7 - Electronic Modulation 0-10 Vdc
4 - Electronic Modulation External Input
5 - Electronic Modulation Master 8 - Electronic Modulation 4-20 mA
External Input
13 - additional safety switches (ss)
4 - No Switches (Standard)
0 - No Switches (Premium)
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
E - 230/60/3
F - 460/60/3
G - 575/60/3
15 - transformer (tr)
1 - 40 VA
2 - 75 VA
3 - 150 VA
4 - 250 VA
0 - None
16 - Blower size & Bearing type (BB)
A - 9-7 Spider Bearings
B - 9-7 Pillow Block Bearings
C - 9-9 Spider Bearings
D - 9-9 Pillow Block Bearings
E - 12-12 Spider Bearings
G - 15-15 Spider Bearings
H - 15-15 Pillow Block Bearings
I - 18-18 Spider Bearings under 15 Hp
J - 18-18 Pillow Block Bearings under 15 Hp
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
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
2 - ODP - High Eff.
5 - TE
6 - TE - High Eff.
19 - sheave arrangement (sa)
A - (See Sheave Tables 34.1 to 35.5)
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)
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
22 - evaporative cooling (ec)
0 - None
23 - cooling coil (cc)
0 - None
1 - Factory Installed Coil
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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: 1.866.823.1631 (toll free) www.modinehvac.com/schoolsystems

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Key features
- Gravity vented
- Power vented
- Approved for use in California
- Indoor installation
- Gas-fired
- Duct furnace
- Make-up air unit