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550.13-N10Y

Unitary Products Group

12

® 

3.

The tension on the belt should be adjusted for a deflec-
tion of 3/16” per foot of belt span with an applied force of 
2 to 3 pounds.  This adjustment is made by moving the 
blower motor mounting plate.  Refer to Figure 14.  Turn-
ing the adjustment bolt (B) moves the motor mounting 
plate up or down.  Two hex nuts (A have to be loosened 
to move the mounting plate and retighten after the 
mounting plate has been moved to the proper position.

NOTE: Never loosen the two nuts (C) (shown in Fig. 14)

4.

All pulleys are factory aligned.

5.

All supply air motor pulleys are factory set at 3 “turns 

open”.

After the supply air blower motor is operating, adjust the
resistances in both the supply and the return duct system to
balance the air distribution throughout the conditioned space.

The job specification may require that this balancing be done
by someone other than the equipment installer.

To check the supply air CFM after the initial balancing has
completed”

1.

Drill two 5/16” holes in the side panel as shown in Figure 
15.

2.

Insert at lest 6” of 1/4” 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 held in a position per-
pendicular to the air flow so that velocity pressure will not
affect the static pressure reading.

3.

Using an inclined manometer, determine the pressure 
drop across a dry indoor coil.  Since moisture on the coil 
may vary greatly, measuring the pressure drop across a 
wet coil under field conditions would be inaccurate.  To 
assure a dry coil, the system should be de-activated 
while the test is being run.

TABLE 6: SUPPLY AIR BLOWER MOTOR PULLEY 
ADJUSTMENT

TURNS

OPEN

DRIVE RANGE

625-810 RPM

827-986 RPM

5

625

827

4

662

859

3

699

891

2

736

923

1

773

955

0

810

986

 FIGURE 14 : TYPICAL MOTOR MOUNTING 

ASSEMBLY

M O T O R

M O U N T

B

C   ( D O   N O T   L O O S E N )

M O T O R

A

Содержание KES180

Страница 1: ...CTION 3 INSTALLATION 4 MAINTENANCE 17 A complete Table of Contnents on following page INSTALLATION INSTRUCTION SAVE THIS MANUAL 035 16670 000 REV A 999 Form 550 13 N10Y SPLIT SYSTEM COOLING ONLY INDOOR UNITS MODELS KES180 LES240 LES240 SHOWN ...

Страница 2: ...N AIR GRILLE KES180 9 7 RETURN AIR GRILLE LES240 9 8 BASE ACCESSORY KES180 9 9 BASE ACCESSORY LES240 9 10 SUPPLY AIR PLENUM FEH 180 10 11 SUPPLY AIR PLENUM KNOCKOUTS KES180 10 12 SUPPLY AIR PLENUM LES240 10 13 RECOMMENDED DRAIN PIPING 11 14 TYPICAL MOTOR MOUNTING ASSEMBLY 12 15 HOLE LOC FOR PRESS DROP READINGS 13 16 CFM VS PRESSURE DROP 13 17 TYPICAL FIELD WIRING 17 18 UNIT DIMENSIONS KES180 18 19...

Страница 3: ...d pay particular attention to the words NOTE CAUTION and WARNING Notes are intended to clarify or make the installation easier Cautions are given to prevent equipment damage Warnings are given to alert the installer that personal injury and or equipment damage may result if the installation procedure is not handled properly INSPECTION As soon as a unit is received it should be inspected for possi ...

Страница 4: ...d 3 and make sure that its weight will be distributed equally LOCATION These indoor units are not designed for outdoor installation They must be located within the building structure either inside 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 Units being installed vertically or hori...

Страница 5: ...Y DIAMETER X WIDTH INCHES 18 X 18 1 15 X 12 2 BLOWER MOTOR 1 HP 3 RPM 1750 FILTERS THROWAWAY QUANTITY PER UNIT 6 8 SIZE IN 20 X 20 X 1 20 X 22 X 1 TOTAL FACE AREA SQUARE FEET 16 7 24 1 UNIT WEIGHT LBS SHIPPING 425 830 OPERATING 435 720 ACCESSORY OPERATING WEIGHT LBS MOTOR DRIVE 3 HP 90 5 HP 120 ELECTRIC HEAT 10 KW 63 20 KW 66 126 30 KW 71 129 40 KW 132 50 KW 80 137 SUPPLY AIR PLENUM 114 150 RETURN...

Страница 6: ...N 460 3 60 414 506 AMBIENT AIR ON OUTDOOR COIL COOLING CYCLE F 45 115 AMBIENT AIR ON INDOOR COIL COOLING CYCLE F 68 86 FIGURE 2 UNIT SUSPENSION MOUNTING KES180 HORIZONTAL APPLICATIONS 3 1 1 2 COIL SECTION BLOWER SECTION 5 A D SUSPENSION CHANNEL HANGER RODS FIELD SUPPLIED C B ELECTRIC HEATER ACCESSORY 40 Lb SUPPLY AIR PLENUM ACCESSORY 100 Lb D 55 58 11 16 ...

Страница 7: ... 470 535 575 FIGURE 3 UNIT SUSPENSION MOUNTING LES240 HORIZONTAL APPLICATIONS 3 43 3 4 EVAP COIL SECTION BLOWER SECTION HEATING COIL SUSPENSION CHANNEL 43 3 4 5 A B C D E F 55 HANGER RODS FIELD SUPPLIED ELECTRIC HEAT ACCESS 40lbs each TABLE 4 LES240 UNIT SUSPENSION WEIGHTS lbs SUSPENSION POINT W 5HP MOTOR1 1 Motor location at suspension point F W HEATER ACCESS A 142 142 B 132 132 C 152 152 D 162 1...

Страница 8: ... G H A R N E S S L O C A T I O N T h i s o p e n i n g i n t h e b o t t o m o f t h e h e a t e r c o n t r o l b o x i s u s e d f o r t h e w i r i n g h a r n e s s t h a t c o n n e c t s t h e h e a t e r a c c e s s o r y t o t h e b a s i c u n i t I t i s p r o v i d e d w i t h a s q u e e z e c o n n e c t o r f o r s e c u r i n g t h e w i r i n g h a r n e s s a n d i t s l o c a t i...

Страница 9: ...29 7 8 26 3 8 21 3 4 2 3 8 5 1 4 3 4 6 3 4 2 1 4 2 1 2 22 1 4 19 1 4 1 2HC04501025 46 and 2HC04502025 and 46 are used on the LES240 units only The dimensions are the same as shown above for the 2HB heaters The 2HB heaters are installed on the drive side of the LES240 and the 2HC heaters are installed on the opposite side FIGURE 6 RETURN AIR GRILLE KES180 FIGURE 7 RETURN AIR GRILLE LES240 60 3 4 31...

Страница 10: ...work only wen a free blow free return applica tion is practical REFRIGERANT MAINS Many service problems can be avoided by taking adequate precautions to provide and internally clean and dry system and by using procedures and materials that conform with established standards Use hard drawn copper tubing where no appreciable amount of bending around pipes or other obstructions is necessary Use long ...

Страница 11: ...tive side of the supply air blower and it must be protected from freezing temperatures A 7 8 OD drain connections extends through right hand side of the cabinet Refer to Figure 13 for recommended drain piping The drain connection is located on the same side of the unit as the refrigerant connections The line should be insulated where moisture drippage will be objectionable or cause dam age to the ...

Страница 12: ...lancing be done by someone other than the equipment installer To check the supply air CFM after the initial balancing has completed 1 Drill two 5 16 holes in the side panel as shown in Figure 15 2 Insert at lest 6 of 1 4 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 held in a position per pendicular...

Страница 13: ...OP IWG KES180 LES240 TABLE 7 SUPPLY AIR PREFORMANCE KES1801 RPM CFM 4800 5400 6000 6600 ESP2 BHP3 KW4 ESP2 BHP3 KW4 ESP2 BHP3 KW4 ESP2 BHP3 KW4 600 0 38 1 49 1 42 0 23 1 74 1 66 0 02 1 99 1 89 650 0 58 1 73 1 65 0 43 1 99 1 89 0 24 2 29 2 18 700 0 79 1 97 1 87 0 65 2 28 2 17 0 47 2 59 2 46 0 24 2 92 2 78 750 1 00 2 25 2 14 0 88 2 58 2 46 0 70 2 91 2 77 0 48 3 30 3 14 800 1 22 2 54 2 42 1 11 2 89 2...

Страница 14: ...ly TABLE 8 SUPPLY AIR PERFORMANCE LES2401 RPM CFM 6400 7200 8000 8800 9600 ESP2 BHP3 kW4 ESP2 BHP3 kW4 ESP2 BHP3 kW4 ESP2 BHP3 kW4 ESP2 BHP3 kW4 600 0 15 1 49 1 42 650 0 31 1 71 1 63 0 14 2 00 1 90 700 0 49 1 95 1 86 0 32 2 27 2 16 0 12 2 63 2 50 750 0 67 2 21 2 10 0 51 2 56 2 44 0 32 2 92 2 78 0 10 3 35 3 19 800 0 85 2 50 2 38 0 70 2 85 2 71 0 52 3 25 3 09 0 31 3 70 3 52 0 07 4 20 4 00 850 1 05 2...

Страница 15: ...WG 895 150 230 3 60 115 2 153 2 175 2 0 AWG 1073 150 460 3 60 57 6 76 6 80 4 AWG 1347 100 L1ES240A33 5 20 KW 208 3 60 41 6 68 0 70 4 AWG 186 100 230 3 60 46 2 70 6 80 4 AWG 251 100 460 3 60 23 1 35 3 40 8 AWG 381 60 30 KW 208 3 60 62 5 94 1 100 3 AWG 233 100 230 3 60 69 3 99 4 100 3 AWG 315 100 460 3 60 34 6 49 7 50 8 AWG 381 60 40 KW 208 3 60 83 3 120 1 125 1 AWG 371 150 230 3 60 92 1 127 9 150 1...

Страница 16: ... 175 2 0 AWG 1073 150 460 3 60 57 6 76 6 80 4 AWG 1347 100 L1ES240A33 5 20 KW 208 3 60 41 6 68 0 70 4 AWG 186 100 230 3 60 46 2 70 6 80 4 AWG 251 100 460 3 60 23 1 35 3 40 8 AWG 381 60 30 KW 208 3 60 62 5 94 1 100 3 AWG 233 100 230 3 60 69 3 99 4 100 3 AWG 315 100 460 3 60 34 6 49 7 50 8 AWG 381 60 40 KW 208 3 60 83 3 120 1 125 1 AWG 371 150 230 3 60 92 1 127 9 150 1 AWG 501 150 460 3 60 46 1 64 0...

Страница 17: ...n Figures 18 and 19 for the location of the filter access panel DRAIN PAN The condensate drain pan should be inspected regularly to assure proper drainage LUBRICATION The bearings for the blower shaft and the blower motor are permanently lubricated and should not require any additional lubricant BELTS Maintain belt tension to extend belt life Replace the signs of failure begin to appear FIGURE 17 ...

Страница 18: ... t r u c t i o n w h e n p i p i n g t h r o u g h t h e o p p o s i t e s i d e o f t h e u n i t A I R I N 1 2 7 8 2 9 1 6 2 9 1 6 Ø 1 3 8 A L L D I M E N S I O N S A R E I N I N C H E S T H E Y A R E S U B J E C T T O C H A N G E W I T H O U T N O T I C E C E R T I F I E D D I M E N S I O N S W I L L B E P R O V I D E D U P O N R E Q U E S T A C C E S S O R I E S E l e c t r i c H e a t e r s A...

Страница 19: ...I O N S A R E I N I N C H E S T H E Y A R E S U B J E C T T O C H A N G E W I T H O U T N O T I C E C E R T I F I E D D I M E N S I O N S W I L L B E P R O V I D E D U P O N R E Q U E S T A C C E S S O R I E S E l e c t r i c H e a t e r s A d d 1 4 1 4 t o u n i t h e i g h t w h e n u s i n g 1 0 2 0 o r 3 0 k W h e a t e r P l e n u m A d d 2 4 5 8 t o o v e r a l l u n i t h e i g h t w h e n ...

Страница 20: ...ct to change without notice Printed in U S A Copyright by Unitary Products Group 1999 All rights reserved Supersedes Nothing 550 13 N10Y 999 Unitary 5005 Interstate Norman Product Drive OK Group North 73069 ...

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