York F3EH090 User Manual

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Page 1

INSTALLATION MANUAL

SPLIT-SYSTEM HEAT PUMPS

INDOOR UNITS

Supersedes: 515.41-N2Y (692)/035-09651-000 035-09651-001-A-0304

MODELS F3EH090 & F4EH120

(50 and 60 Hz)

GENERAL

These completely assembled indoor units include a wellinsulated cabinet, a copper tube/aluminum fin coil, throw away filters, a centrifugal blower,ablowermotor, an adjust able V-belt drive, a blower motor contactor and a small holding charge of an inert gas. They also include a filterdrier,anexpansion valveand adistributor that are only used during the cooling cycle plus a check valve to provide the proper flow of refrigerant through the coil during both the cooling and heating cycles.

Supplementalresistanceheaters, a supplyair plenum, areturn airgrille and abase are availableas accessories forfield instal lation.

The units are shipped in the vertical position ready for field in stallation. For horizontal installation, reverse the solid bottom panel and the return air duct flange on the front of the unit.

REFERENCE

Thisinstruction coversthe installationof theindoor unit.For in formationon theinstallation andoperation ofthe matchingout door unit, refer to Form 035-15410-002.

Renewal Parts:

•

Refer to Parts Manual for complete listing of replacement parts on this equipment.

All forms referenced in this instruction may be ordered from:

Installer should pay particular attention to the words: NOTE,

CAUTION and WARNING. Notes make the installation easier. Cautions equipment damage. Warnings thatpersonal injuryand/orequipment damagemay resultifthe installation procedure is not handled properly.

INSPECTION

As soon as a unit is received, it should be inspected for possi

ble damage during transit. If damage is evident, the extent of

thedamageshould benotedon the carrier'sfreightbill. Asepa

THIS PRODUCT MUSTBE INSTALLED IN STRICTCOMPLIANCE WITH THE ENCLOSED INSTALLATION INSTRUCTIONS AND ANY APPLICABLE LOCAL, STATE, AND NATIONAL CODES

INCLUDING, BUT NOT LIMITED TO, BUILDING, ELECTRICAL,

AND MECHANICAL CODES.

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE INJURY OR PROPERTY DAMAGE. REFER TO THIS MANUAL. FOR ASSISTANCE OR ADDITIONAL INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.

Standard Register Toll Free Tel.: 877-318-9675 Toll Free Fax: 877-379-7920

are intended to clarify or

are given to prevent

are given to alert the installer

CAUTION

WARNING

Page 2

GENERAL REFERENCE INSPECTION NOMENCLATURE

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INSTALLATION

LIMITATIONS LOCATION RIGGING CLEARANCES VERTICAL/HORIZONTALINSTALLATION DUCT CONNECTIONS REFRIGERANT MAINS DRAIN CONNECTION SUPPLYAIR BLOWER ADJUSTMENT POWER AND CONTROL WIRING

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TABLE OF CONTENTS

1 1

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1 2

3 3 3 3 5 5 6 6 7 9

Figure

No.

035-09651-001-A-0304

FIGURES

Description Page 1 Unit Suspension Mounting 2 Vertical & Horizontal Application 3 Electric Heater Accessory 4 Supply Air Plenum Accessory 5 Base Accessory 6 Return Air Grille Accessory 7 Recommended Drain Piping 8 Motor Mounting Assembly 9 Hole Locations for Pressure Drop

10 Pressure Drop vs Supply Air CFM 11 Field Wiring 12 Unit Dimensions & Clearances

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4 5 5 5 5 6 6 7 8

8 10 11

Refer to the matching outdoor unit installation instruction (Form 035-15410-002) for the operating sequence of the entire system.

MAINTENANCE

INDOOR COIL DRAIN PAN FILTERS LUBRICATION

BELTS ............................................................................. 12

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12 12 12 12

TABLES

Table

No.

1 Physical Data 2 Application Data 3 Blower Motor Pulley Adjustment 4 Blower Performance (60Hz Units) 5 Blower Performance (50 Hz Units) 6 Accessory Static Resistance

7 Blower Motor & Drive Data................................... 9

8 Electrical Data...................................................... 9

Description Page

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3 4 7 8 8 9

PRODUCT NOMENCLATURE

PRODUCT CATEGORY

F = Split-System Heat Pump

Indoor

Unit

PRODUCT GENERATION

3 = 3rd Generation 4 = 4th Generation

PRODUCT IDENTIFIER

2 Unitary Products Group

F 3 E H 3 39 A

EH = Indoor Unit

0 0

NOMINAL COOLING

CAPACITY

090 = 7-1/2 Ton 120 = 10 Ton

VOLTAGE CODE

33 = 208/230/460-3-60 50 = 380/415-3-50

FACTORYINSTALLED HEAT

A = Not Applicable

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035-09651-001-A-0304

INSTALLATION

rate request for inspection by the carrier's agent should be made in writing.

LIMITATIONS

These units must be installed in accordance with all national andlocal safety codes.Ifno localcodesapply,installationmust conform with the appropriate national codes. Units are de signedtomeetNational SafetyCodeStandards.Ifcomponents are tobe added to aunit to meet localcodes, they are to be in stalled at the dealer's and/or the customer's expense. See Ta ble 2 for application limitations.

LOCATION

These indoor units are not designed for outdoor installation. Theymustbe locatedwithinthe building structure,eitherinside or outside the conditioned space.

The units should be located as close to the outdoor units as practical and positioned to minimize bends in the refrigerant piping.

Unitsbeinginstalledvertically orhorizontallycanbe setdirectly on a floor or platform, or they can be supported by metal or wooden beams.

Units being installed horizontally can be suspended from above.Four 3/8" weld nutsare provided in the unit frame to accommodate hanger rods. Knockouts must be removed from the unit panels to expose theseweld nuts. Refer to Figure1 for their location and the individual load on each hanger rod.

WARNING: Be careful when attaching the hanger rods. Use a

washerwith a back-upnut oneachrod andtighten down against the cabinet so they will not be al lowed to turn or slip.

RIGGING AND HANDLING

Exercise care when moving the unit. Do not removeany pack

aging until the unit is near the place of installation.

The packaging consists of a bottom wooden skid that can be

liftedwitha forktruckfrom anydirection, a cardboardcontainer thatcovers theentire unit, andstrapping thatsecures thecard board container to the bottom skid.

These units can be rigged with slings under the bottom skid.

CAUTION: Spreader bars should be used to prevent the

slings from crushing the unit panels and frame.

Before rigging any unit,determine itsweight from Table 1. Bef orerigging a unitforhorizontal installation, determineitscenter of gravity from Figure 1, and make sure that its weight will be distributed equally.

CLEARANCES

All unitsrequire certain minimum clearances for proper operation and service. Refer to Figure 12 for these clearances.

TABLE 1 - PHYSICAL DATA

DESCRIPTION

Rows Deep x Rows High 3 x 24 4 x 32 Finned Length - inches 45.5 45.5

Coil

Centrifugal Blower (Forward Curve) Diameter x Width - inches 15 X 15 15 X 15 Blower Motor

Filters (Throwaway) Refrigerant-22 (Lbs.) Unit Weight (lbs.)

Accessory Operating Weights (Lbs.)

All of these 1750 RPM motors have a solid base, a 56 frame, a 1.15 service factor, inherent protection & permanently lubricated ball bearings. Refer to page 6 for additional motor & drive data.

Refer to Form 035-15410-002 for system charge.

Unitary Products Group 3

Face Area - square feet 7.6 10.1 Tube (Copper) OD - inches 3/8 3/8 Fins (Aluminum) per inch 13 13

Nominal Rating - HP 1-1/2 2 Quantity Per Unit - 16" x 25" x 1" 4 4 Total Face Area - square feet 11.1 11.1 Pumpdown Capacity 12.0 22.0 Shipping 405 440 Operating 365 400

10 KW 63 63

Electric Heaters

Supply Air Plenum 102 102 Base 60 60 Return Air Grille 15 15

16 KW 66 66 26 KW 71 71 36 KW 74 74

UNIT MODEL

F3EH090 F4EH120

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TABLE 2 - APPLICATION DATA

Model

Power

Supply

Voltage Variation Min. Max. Min. Max. Min. Max. Min. Max.

208/230-3-60 187 252

F3EH090

380/415-3-50 342 456 208/230-3-60 187 252

F4EH120

Utilization Range “A” in accordance with ARI Standard 110.

The system may operate below 50°F for a short period of time when warming up the conditioned space after a long shutdown.

380/415-3-50 342 456

Supply Air CFM

2400 3600 57 72 50

3200 4800 57 72 50

035-09651-001-A-0304

Entering Air Temperatures, °F

Cooling - wb Heating - db

80460-3-60 414 506

FIG. 1 - UNIT SUSPENSION MOUNTING

(Horizontal Application)

Based on a Standard Blower Motor

Model Accessory

Center of Gravity

Dimensions, In.

Weight

Distribution, Lbs.

A B W1 W2 W3 W4 Total

Basic Unit Only 25-5/8 23-1/4 99 104 79 83 365

F3EH090

Unit with Electric Heat 30-3/4 23-3/8 90 150 72 121 433 Unit with Plenum 35-1/8 23-1/2 71 186 58 152 467 Unit with Electric Heat & Plenum 38 23-5/8 62 232 51 190 535 Basic Unit Only 24-1/8 23-1/4 116 106 93 85 400

F4EH120

Unit with Electric Heat 29-1/4 23-3/8 103 155 84 126 468 Unit with Plenum 33-3/8 23-1/2 88 190 70 154 502 Unit with Electric Heat & Plenum 36-5/8 23-5/8 76 236 63 195 570

NOTE: Unit weights (with electric heat accessory) are based on an average heater weight of 68 lbs.

4 Unitary Products Group

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035-09651-001-A-0304

WARNING: Do notpermit overhanging structures or shrubs to

obstruct air discharge.

Additional height may be required for snow clearance if winter operation is expected.

Thereturn airduct flangeis factory-mountedon thefront ofthe unit, but it can bereversed with the solid bottom panel forhori zontal applications.

A supply air plenum (Fig. 4), a base (Fig. 5) and a return air grille (Fig. 6) are available as field-installed accessories, and one ofthe following respective instructions will be packed with each.

FIG. 2 - VERTICAL AND HORIZONTAL APPLICATIONS

VERTICAL / HORIZONTAL INSTALLATION

Theseindoor units are shipped forvertical installationwith ver tical air discharge as shown in Figure 2(A) but may be con verted for horizontal installation as shown in Figure 2(B) by interchanging the solid bottom panel and the return air duct flange.

DUCT CONNECTIONS

Design and install all ducts in accordance with all national and/or local codes.

Ducts should be sized no smaller than the duct flanges on the unitor theelectric heater(if used).Refer tothe unitdimensions (Fig. 12) and the heater detail (Fig. 3) for these sizes. Refer to Form035-16602-002 for installationinstructionson theelectric heater.

FIG. 3 - ELECTRIC HEATER ACCESSORY

(Vertical Arrangement Shown)

Plenum should be field mounted on the supply air end of indoor units for either vertical or horizontal application. For rear discharge, rotate plenum 180°. For horizontal discharge on a horizontal unit, the grille panel and the top panel will be arranged differently. Refer to Form 035-16650-001 for installation and assembly instructions.

FIG. 4 - SUPPLY AIR PLENUM ACCESSORY

(Vertical Arrangement Shown)

Useflexible fiber glass or plasticcloth collarsor other nonflam

mable material at the unit duct connections to minimize the transmission of noise and vibration.

Insulate all ductwork running through unconditioned areas to prevent moisture condensation and to provide more economi cal operation.

Unitary Products Group 5

FIG. 5 - BASE ACCESSORY

(For Vertical Arrangement Shown)

Page 6

FIG. 6 - RETURN AIR GRILLE ACCESSORY

(Vertical Arrangement Shown)

Form 035-16650-001 – Supply Air Plenum Form 035-16621-001 – Return Air Grille Form 035-16632-001 – Base

035-09651-001-A-0304

INSTALLING REFRIGERANT MAINS

WARNING: Provisions for recovering refrigerant releases

must be available during allphases of installation, leak testing and charging. Do NOT release refrig erant into the atmosphere.

The units are evacuated and dehydrated at the factory and shipped with a holding charge of aninert gas suchas Nitrogen or Helium. The vapor and liquid connections are sealed with copper discs.

If the unit has already lost its holding charge, it should be leak tested and the necessary repairs should be made. If the unit has maintained its holding charge, you can assume that it has no leaks and proceed with the installation.

The temperature required to make or break a brazed joint is sufficientlyhightocauseoxidation of thecopperunlessaninert atmosphere is provided.

Thesupplyair plenumandthereturn airgrilleshouldbe usedin lieuof ductworkonly whena free blow/free return applicationis practical.

REFRIGERANT MAINS

Many service problems can be avoided by taking adequate precautions to provide an internally clean and dry system and by using procedures and materials that conform with established standards.

Useharddrawn copper tubingwherenoappreciable amountof bending around pipes or other obstructions is necessary. Use long radius ells wherever possible with one exception - small radius ells for any traps in a vapor riser.If soft copper is used, care should be taken toavoid sharp bends whichmay cause a restriction.

Fiber glass insulation and a sealing material such as perma gum should be packed around refrigerant lines where they penetrate a wall to reduce vibration and to retain some flexibil ity.

Support all refrigerant lines at minimum intervals with suitable hangers, brackets or clamps.

Braze all copper to copper joints with Sil-Fos 5 or equivalent brazing material. DO NOT USE SOFT SOLDER.

Drilla small holethrough thediscsto preventanyinternal pres surefrom blowing themoff and to allowthe flow of dry nitrogen through the connections when unbrazing the closures.

The liquid and vapor connections must be piped outside the unit. Refer to the unit drawing for the locations and the dimensions of these connections.

Before brazing the refrigerant lines to these connections, remove the short panel from the unit frame and slide the grommets onto the refrigerant lines. After the brazed joints have cooled, slide the grommets back into place and secure the panel to the unit frame.

NOTE: Thesecoilscan only bepipedfromonesideof the unit.

DRAIN CONNECTION

The drain line MUSTbe trapped becausethe coil islocated on the negative side of the supply air blower,and it must be pro

tected from freezing temperatures.

Never braze or solder the liquid and vapor lines together. The completevaporline should beinsulatedwithminimum 1/2" AR

MAFLEX or equivalent.

If it is desirable to tape or wire these lines together for support purposes, they must be completely insulated, one from the other.

Refer to the installation instruction (Form 035-15410-002) for the matching outdoor unit for piping limitations, line sizes, and other design considerations.

6 Unitary Products Group

FIG. 7 - RECOMMENDED DRAIN PIPING

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035-09651-001-A-0304

A7/8" OD drain connection extends through right hand side of cabinet. Refer to Fig. 7 for recommended drain piping.

The drain connection is located on the sameside of theunit as therefrigerantconnections. The lineshouldbe insulated where moisturedrippagewillbe objectionable orcausedamagetothe area.

The 3" dimension must equal or exceed the negative static pressure developed by the supply air blower. If it does not, the condensate will not drain properly and may overflow the drain pan. The trap must be at least 2-1/2" deep to maintain a water seal under all operating conditions, especially during blower start-up.

NOTE: The unit may have to be raised off the floor to allow

enough height for the trap.

FIG. 8 - TYPICAL MOTOR MOUNTING ASSEMBLY

NOTE: Never loosen the two nuts (C).

TABLE 3 - SUPPLY AIR BLOWER MOTOR

PULLEY ADJUSTMENT

TURNS

OPEN*

5 655 RPM 542 RPM 700RPM 581 RPM 4 760 580 750 622 3 745 618 800 663 2 790 656 850 704 1 835 694 900 745 0 880 732 950 786

*Pulleys can be adjusted in half-turn increments.

F3EH090

60 Hz

F3EH090

50 Hz

MODEL

F4EH120

60 Hz

F4EH120

50 Hz

SUPPLY AIR BLOWER ADJUSTMENT

The RPM of the supply air blower will depend on the required CFM,theunitaccessories andthestaticresistancesofboth the supply and the return air duct systems. With this information, the RPM for the supply air blower can be determined from the blower performance in Table 4.

Knowing the required blower RPM and the blower motor HP, the setting (turns open) for the supply air motor pulley can be determined from Table 3.

Each motor pulley has:

1. Athreaded barrel with two flats (or notched recesses) 180 degrees apart.

2. A movable flange with one set screw.

After the movable flange has been rotated to the proper number of “turns open”, the set screw should be tightened againsttheflat on thebarreltolock the movableflangeinplace. If the pulley includesa locking collar, thelocking collar mustbe loosened to adjust the setting of the movable flange.

Note the following:

1. The supply air CFM mustbe within the limitations shown in Table 2.

2. All pulleys can be adjusted in half turn increments.

3. The tension on the belt should be adjusted for a deflection of 3/16 of an inch per footof belt spanwith an applied force of 2 to 3 pounds. This adjustment is made by moving the blowermotor mounting plate.Refer toFigure8. Turningthe adjustment bolt (B) moves the motor mounting plate up or down.

Unitary Products Group 7

Twohex nuts (A) have to be loosened to move the mount ingplate and retightenedafter the mountingplate hasbeen moved to the proper position.

4. All pulleys are factory aligned.

5. All supply air motor pulleys are factory set 3 “turns open”. After thesupply air blower motoris operating, adjust the resis

tances in both the supply and the return duct systems to bal ancethe air distributionthroughout theconditioned space. The job specifications may require that this balancing be done by someone other than the equipment installer.

Tocheckthe supply airCFMafter the initialbalancinghas been completed:

1. Drill two 5/16 inch holes in the side panel as shown in Figure 9.

2. Insert atleast 6" of 1/4 inch tubing into each of these holes for sufficient penetration into the air flow on both sides of the indoor coil.

NOTE: The tubes must be inserted and heldin a position

perpendicular tothe air flow so thatvelocity pres sure will not affect the static pressure readings.

3. Usingan inclined manometer,determinethepressuredrop across a dry indoor coil. Since moisture on the coil may varygreatly,measuringthe pressuredrop acrossa wet coil underfield conditions would be inaccurate. To assure a dry coil, the heat pump system should be de-activated while the test is being run.

4. Knowing the pressure drop across a dry coil, the actual CFM through the unit can be determined from the curve in Figure 10.

Ifthe CFM is above orbelow thespecified value, the supply air motor pulley may have to be readjusted. After one hour of op eration,checkthebeltand pulleys fortightnessandalignment.

WARNING: Failure to properly adjust the total system CFM

can result in extensive blower damage.

Afterreadings havebeen obtained,remove thetubes and seal up the drilled holes in the side panel. Dot plugs (5/16" - P/N 029-13880-000) are available through normal parts ordering procedures.

NOTE: Shut down the heat pump system before taking any

test measurements to assure a dry indoor coil.

Page 8

0.5

035-09651-001-A-0304

PRESSURE DROP

ACROSS DRY INDOOR COIL

FIG. 9 - HOLE LOCATIONS FOR PRESSURE

DROP READINGS

TABLE 4 - SUPPLY AIR BLOWER PERFORMANCE

RPM

ESP

BHP KW ESP2BHP KW ESP2BHP KW ESP2BHP KW ESP2BHP KW

0.4

0.3

0.2

PRESSURE DROP (IWG)

0.1 2000 2400 2800 3200 3600 4000 4400 4800 5200

FEH090

SUPPLY AIR CFM

FIG. 10 - PRESSURE DROP ACROSS A DRY

INDOOR COIL VS. SUPPLYAIR CFM

1,3

(60 Hz Units)

CFM

FEH120

F3EH090 (60 Hz)

2400 2700 3000 3300 3600 600 0.30 0.62 0.79 0.21 0.70 0.76 0.09 0.78 0.89 -----655 0.43 0.70 0.86 0.39 0.78 0.83 0.26 0.87 0.97 0.11 0.96 1.07 - - 700 0.52 0.77 0.93 0.48 0.85 0.90 0.40 0.95 1.06 0.28 1.06 1.16 0.14 1.17 1.26 800 0.82 0.97 1.10 0.81 1.06 1.07 0.74 1.18 1.27 0.63 1.30 1.38 0.51 1.42 1.49 880 1.10 1.11 1.24 1.09 1.24 1.21 1.02 1.37 1.45 0.91 1.50 1.55 0.78 1.64 1.70 900 1.15 1.15 1.27 1.14 1.28 1.24 1.07 1.42 1.49 0.97 1.55 1.60 0.87 1.70 1.74

1000 1.49 1.35 1.46 1.47 1.48 1.43 1.42 1.63 1.65 1.35 1.81 1.82 1.27 2.02 2.02

F4EH120 (60 Hz)

3200 3600 4000 4400 4800 700 0.30 1.01 1.17 0.15 1.17 1.27 --------800 0.66 1.25 1.38 0.52 1.42 1.51 0.31 1.60 1.64 0.08 1.80 1.78 - - 900 0.99 1.48 1.60 0.87 1.70 1.77 0.69 1.92 1.93 0.47 2.18 2.09 0.19 2.45 2.23 950 1.20 1.61 1.71 1.08 1.86 1.90 0.90 2.12 2.07 0.72 2.39 2.23 0.41 2.67 2.42

1000 1.37 1.75 1.83 1.27 2.02 2.02 1.11 2.30 2.20 0.92 2.60 2.39 0.63 2.90 2.59

1,3

TABLE 5 - SUPPLY AIR BLOWER PERFORMANCE

RPM

ESP

BHP KW ESP2BHP KW ESP2BHP KW ESP2BHP KW ESP2BHP KW

(50 Hz Units)

CFM

F3EH090 (50 Hz)

2000 2250 2500 2750 3000 500 0.22 0.43 0.41 0.16 0.48 0.46 0.08 0.53 0.50 -----542 0.30 0.47 0.45 0.25 0.53 0.50 0.18 0.58 0.55 0.10 0.63 0.60 - - 550 0.32 0.48 0.46 0.27 0.54 0.51 0.20 0.59 0.56 0.12 0.64 0.61 0.01 0.70 0.66 600 0.42 0.54 0.51 0.38 0.60 0.57 0.32 0.66 0.62 0.23 0.72 0.68 0.13 0.78 0.73 650 0.54 0.60 0.57 0.50 0.66 0.62 0.45 0.73 0.68 0.37 0.79 0.74 0.28 0.85 0.80 700 0.67 0.67 0.63 0.63 0.73 0.69 0.58 0.80 0.75 0.52 0.87 0.82 0.43 0.95 0.89 732 0.77 0.71 0.67 0.73 0.77 0.72 0.68 0.84 0.79 0.62 0.93 0.87 0.54 1.02 0.96 750 0.83 0.74 0.69 0.79 0.80 0.75 0.73 0.87 0.82 0.68 0.97 0.91 0.60 1.07 1.00

F4EH120 (50 Hz)

2800 3150 3500 3850 4200 550 0.14 0.65 0.60 -----------581 0.21 0.70 0.64 0.05 0.77 0.70 --------600 0.26 0.73 0.67 0.10 0.80 0.73 --------650 0.40 0.81 0.74 0.25 0.89 0.82 0.11 0.98 0.91 -----700 0.54 0.90 0.83 0.41 1.00 0.93 0.27 1.11 1.03 0.10 1.25 1.16 - 1.40 1.29 750 0.70 0.99 0.92 0.58 1.12 1.04 0.45 1.25 1.16 0.29 1.40 1.29 0.10 1.55 1.43 786 0.81 1.06 0.98 0.71 1.21 1.13 0.59 1.36 1.26 0.43 1.51 1.39 0.24 1.66 1.54 800 0.86 1.09 1.01 0.76 1.25 1.16 0.64 1.41 1.30 0.49 1.55 1.43 0.30 1.71 1.58

Unit resistance is based on a wet indoor coil and clean filters.

Available static pressure in IWG to overcome the resistance of the duct system and any accessories added to the unit. Refer to the Tables 6 & 7 for the resistance of these accessories and for

additional motor and drive data .

Motors can be selected to operate into the service factor because they are located in the moving air stream, upstream of any heating device.

RPM range for the standard drive components.

Exceeds the BHP limitations of the standard blower motor.

8 Unitary Products Group

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035-09651-001-A-0304

TABLE 6 - ACCESSORY STATIC RESISTANCE (IWG)

(To be included with Duct System Static Resistance)

Model Accessory Static Resistance, IWG

BLOWER CFM 2400 2700 3000 3300 3600

10 KW 0.01 0.01 0.01 0.02 0.02 16 KW 0.01 0.02 0.02 0.03 0.04 26 KW 0.03 0.04 0.05 0.06 0.07 36 KW 0.05 0.07 0.08 0.10 0.11

F3EH090

Electric

Heat

Supply Air Plenum 0.03 0.03 0.04 0.05 0.06 Return Air Grille 0.02 0.03 0.04 0.05 0.06

BLOWER CFM 3200 3600 4000 4400 4800

10 KW 0.02 0.02 0.03 0.03 0.04 16 KW 0.03 0.04 0.05 0.06 0.07 26 KW 0.06 0.07 0.09 0.11 0.13 36 KW 0.09 0.11 0.14 0.17 0.20

F4EH120

Electric

Heat

Supply Air Plenum 0.05 0.06 0.07 0.08 0.10 Return Air Grille 0.05 0.06 0.07 0.08 0.10

TABLE 7 - BLOWER MOTOR AND DRIVE DATA

Model Motor HP* Blower RPM

60 Hz

50 Hz

*These factory-mounted motors are wired for a 460V power supply. Refer to the wiring diagram inside the motor terminal box when reconnecting the motor leads for a

208 or 230 volt power supply.

F3EH090 1-1/2 655 - 880 F4EH120 2 700 - 950 7.0 F3EH090 1-1/2 542 - 732 7.5 F4EH120 2 581 - 786 7.0

Adjustable Motor Pulley Fixed Blower Pulley Belt

Pitch Dia.

(Inches)

Bore

(Inches)

Pitch Dia.

(Inches)

Bore

(Inches)

Designation

7.5

2.8 - 3.8 7/8

1 A36 37.3

Pitch Lg.

(Inches)

TABLE 8 - ELECTRICAL DATA

Blower

Motor

Power

Supply

FLA

Max. Fuse

Size, AMPS

F3EH090

208-3-60 5.3 10 207 230-3-60 5.8 10 209

1-1/2

460-3-60 2.7 5 897 380-3-50 3.3 5 606 415-3-50 4.0 5 546

F4EH120

208-3-60 7.5 10 146 230-3-60 6.8 10 178

460-3-60 3.4 5 712 380-3-50 4.0 5 500 415-3-50 4.5 5 485

NOTE: Refer to Form 550.13-N10.1 for electrical data on units equipped with an electric

heat accessory.

Dual element, time delay fuses.

Based on three 60°C, 14 AWG, insulated copper conductors in steel conduit, a 3% voltage

drop.

Max. Wire

Length

(Ft.)

#19 Solid 130 #18 Solid 170 #18 Stranded 180 #16 Stranded 270 #14 Stranded 455 #12 Stranded 730

To determine the total circuit length, add the following distances:

1 - Outdoor Unit to Indoor Unit ___________ 2 - Indoor Unit to Thermostat ____________ 3 - Thermostat to Indoor Unit ____________ 4 - Indoor Unit to Outdoor Unit ___________ 5 - Outdoor Unit to Elec. Heater __________

CONTROL WIRE SIZING

Wire Size

Total Circuit Length __________

Maximum Total

Circuit Length

(Feet)

Unitary Products Group 9

Page 10

POWER AND CONTROL WIRING

Install electrical wiring in accordance with the latest National Electrical Code (NFPA Standard No. 70) and/or local regula tions. The unit should be grounded in accordance with these codes.

Routethe powerwiresinto theunit throughthe1-3/8” knockout in the rear panel, and connect them to the terminals on blower motor contactor 10M. Route the control wires into the unit throughthe 7/8"hole inthe rear panel,and connectthem to the terminals on block 4TB. Refer to the unit drawing in Fig. 12 for the locations of these knockouts.

If the unit includes an electric heat accessory, route the power wires intoheater control box in lieu of the unit. Referto electric

035-09651-001-A-0304

heatinstruction Form035-16602-002 foradditional installation information.

NOTE: Motors are wiredfor a460V power supply.Refertothe

wiring diagram inside the motor terminal box when re connecting motor leads for a 208 or 230 volt power supply.

RefertoTable6 to sizethedisconnectswitch, the powerwiring, the fuses and the control wiring. Refer to Fig. 11for field wiring diagram.

If the supply air blower rotates in the wrong direction, reversetwoof the motorleadsatblower motor contactor 10M.

NOTE: For thermostat to be used on these units refer to form #036-13335-003.

Refer to electric heat instruction 035-16602-002 for additional

NOTE:

power and control wire requirements if the indoor unit is equipped with an electric heat accessory.

FIG. 11 - FIELD WIRING

10 Unitary Products Group

Page 11

035-09651-001-A-0304

All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request.

ACCESSORIES

•

ELECTRIC HEATER - Add 14-1/4" to unit height when used.

•

SUPPLY AIR PLENUM - Add 27-1/2" to unit height when used.

•

BASE - Add 20" to unit height when used.

FIG.12 - UNIT DIMENSIONS & CLEARANCES (F3EH090 & F4EH120) CLEARANCES

Side with RETURN AIR opening 24" Side with SUPPLYAIR opening 24" Side with PIPING CONNECTIONS 52" Side opposite PIPING CONNECTIONS 12"

Side with access for both POWER & CONTROL WIRING Bottom –

Unitary Products Group 11

1 2

–

Overall dimension of the unit will vary if an electric heater, a

supply air plenum or a base is used.

This dimension is required for removal of the coil. Only 26" is

required for normal servicing.

Although no clearance is required for service and operation,

some clearance may be required for routing the power wiring and the control wiring.

Allow enough clearance to trap the condensate drain line.

Page 12

SECUREOWNER'SAPPROVAL:Whenthesystem isfunctioning properly,securethe owner'sapproval.Show himthe

location of all disconnect switches and the thermostat. Teach him how to start and stop the unit, how to adjust temperature settings within the limitations of the system, how the defrost cycle is controlled and how the anti-cycle timer operates.

MAINTENANCE

INDOOR COIL

Do not allow dirt to accumulate on the indoor coil or other parts of the supply/return air circuit. Clean as often as necessary to assure good system performance. Use a brush, vacuum cleaner attachment or other suitable means.

If the coil becomes extremely dirty,it may be necessary to use anindustrialgrade detergent andahoseto clean thefinnedsur faces.This isrecommended to preventany lossin capacity and efficiency.

DRAIN PAN

The condensate drain pan should be inspected regularly to as sure proper drainage.

FILTERS

The filters must be replaced as often as necessary to assure good air flow and filtering action. Clean filters will prevent any loss in capacity and efficiency.

Refer to the unit drawing in Fig. 12 for the location of the filter access panel.

LUBRICATION

Thebearings fortheblower shaftandthe blowermotor areper

manentlylubricated and shouldnot require anyadditional lubri cant.

BELTS

Maintain belt tension to extend belt life. Replace when signs of failure begin to appear.

Unitary Products Group

Subject to change without notice. Printed in U.S.A.

5005 York Drive

Norman, Oklahoma 73069

Supersedes: 515.41-N2Y (692) / 035-09651-000

035-09651-001-A-0304