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GENERAL

These completely assembled 5, 7-1/2 and 10 ton blower
units include a well insulated cabinet, a DX cooling coil with
copper tubes and aluminum fins, an expansion valve, a
distributor, throwaway filters, a centrifugal blower, a blower
motor contactor and a small holding charge of refrigerant-22.
Blower motors and adjustable drives are factory-installed on
all units.

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

INSPECTION

As soon as a unit is received, it should be inspected for
possible damage during transit.  If damage is evident, the

extent of the damage should be noted on the carrier’s freight
bill.  A separate request for inspection by carrier’s agent
should be made in writing.

RENEWAL PARTS

Refer to Parts Manual for complete listing of replacement
parts on this equipment for complete listing of replacement
parts.  The forms referenced in this instruction may be
ordered from:

Publications Distribution Center
Unitary Products Group
P.O. Box 1592, York, PA.  17405

This instruction covers the installation and operation of
evaporator blower units.  For information on the operation of
the matching condensing unit, refer to Forms 550.46-N1W,
550.46-N2W and 550.23-N1W.

Installer should pay particular attention to the words: NOTE, CAUTION and WARNING. Notes are intended to clarify or make the installa-
tion easier.  Cautions are given to prevent equipment damage.  Warnings are given to alert installer that personal injury and / or equipment 
damage may result if installation procedure is not handled properly.

MODELS K*BU060A, K*BC090A, & K*BC120A

035-16673

INSTALLATION
INSTRUCTION

AIR COOLED

SPLIT-SYSTEM AIR CONDITIONERS

Supersedes:  550.23-N2W (589)

550.23-N2Z (399)

Содержание K*BC090A Series

Страница 1: ...agent should be made in writing RENEWAL PARTS Refer to Parts Manual for complete listing of replacement parts on this equipment for complete listing of replacement parts The forms referenced in this i...

Страница 2: ...num Accessor 5 6 Base Accessory 5 7 Return Air Grille Accessory 5 8 Recommended Drain Piping 6 9 Motor Mounting Assembly 7 10 Hole Locations for Pressure Readings 7 11 Pressure Drop vs Supply Air CFM...

Страница 3: ...uts Refer to Figure 1 for their location and the individual load on each hanger rod WARNING Be careful when attaching the hanger rods They must not be allowed to turn or slip CLEARANCES Refer to the u...

Страница 4: ...all ductwork running through unconditioned areas to prevent moisture condensation and to provide more economical operation The return air duct flange is factory mounted on the front of the unit but it...

Страница 5: ...3 x 32 Finned Length inches 30 46 46 Face Area square feet 5 0 8 6 10 2 Tube OD inches 3 8 3 8 3 8 Fins per inch 13 13 13 CENTRIFUGAL BLOWER Forward Curve Diameter x Width inches 10 x 10 15 x 15 15 x...

Страница 6: ...ng temperatures A 7 8 O D drain connection extends through right hand side of cabinet Refer to Figure 8 for recommended drain piping The drain connection is located on the same side of the unit as the...

Страница 7: ...lection of 3 16 of an inch per foot of belt span with an applied force of 2 to 3 pounds Moving the blower motor mounting plate makes this adjustment Refer to Figure 9 Turning the adjustment bolt B mov...

Страница 8: ...0 0 84 0 82 1 02 0 95 0 69 1 16 1 08 1200 1 39 0 80 0 75 1 30 0 90 0 84 1 20 1 02 0 95 1 09 1 15 1 07 0 97 1 30 090 2400 2700 3000 3300 3600 600 0 35 0 62 0 59 0 26 0 70 0 66 0 13 0 78 0 73 655 0 49 0...

Страница 9: ...0 07 0 08 0 10 0 11 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 Hot Water Coil 0 11 0 14 0 17 0 20 0 23 Steam Coil 0 10 0 12 0 14 0 16 0 19 3200 3600 4000 44...

Страница 10: ...ed BASE Add 20 to unit height when used MINIMUM CLEARANCES Side with RETURN AIR opening 24 Side with SUPPLY AIR opening 24 1 Side with PIPING CONNECTIONS 36 2 Side opposite PIPING CONNECTIONS 12 Side...

Страница 11: ...4 FILTER ACCESS PANEL When unit is installed in a horizontal position do not block this area with refrigerant piping 8 3 8 ACCESSORIES ELECTRIC HEATER Add 14 1 4 to unit height when used SUPPLY AIR PL...

Страница 12: ...power supply FIG 14 TYPICAL FIELD WIRING Refer to Figures 12 and 13 for location of power and control wiring openings in rear panel of the unit Refer to Figure 14 for typical field wiring Refer toTab...

Страница 13: ...fuses 5 Based on three insulated copper conductors in steel conduit 60 C wire when the total unit ampacity is below 100 amps 75 C wires when the total unit ampacity is above 100 amps 6 Based on a 3 vo...

Страница 14: ...550 23 N2Z 14 Unitary Products Group...

Страница 15: ...550 23 N2Z Unitary Products Group 15...

Страница 16: ...23 N2W 589 Subject to change without notice Printed in U S A Copyright by Unitary Products Group 1999 All rights reserved Unitary Products Group 5005 York Drive Norman Oklahoma 73069 Code SBL F C A 5...

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