Replacement Parts List No. 552227 Revision D 01/15

Central Station Air Handler Low & Medium Pressure

LSL, MSL, MMM, LWL, MWL, LYF, LHD, LML Sizes 137 thru 172 Vintage C

To find your Daikin Applied distributor, call 1-800-377-2787 or visit www.DaikinApplied.com

Table of Contents Parts List Revision History............................................................................................... 3 Model Number Nomenclature........................................................................................... 4 Serial Number Nomenclature............................................................................................ 5 Unit Code Index.............................................................................................................. 6- 8 Coil Notes........................................................................................................................... 9 Sample Contractor Coil Code Strings.............................................................................. 9 Fan Section Assembly Diagram........................................................................................................ 10 Components.................................................................................................................. 11 Variable Inlet Vanes (Airfoil Fans Only) Diagram & Assemblies.................................................................................................. 12 Components.................................................................................................................. 13 Low Leak Dampers Diagram & Assemblies.................................................................................................. 14 Components.................................................................................................................. 15

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 2

Parts List Revision History

Revision Date

Description

A 2/99 Page 3 - Added Revision History page. Page 4 - Corrected location of Bubble #1 and Bubble #2. Page 5 - Added Airfoil Note above Bubble #1. Added "Airfoil" to Blower Wheel descriptions (Bubble #1 and #2). Corrected part number for 2-11/16" Drive Shaft (Bubble #4). B 3/02 Page 5 - Moved up the notes at the bottom of the page. No change in contents with exception of new revision. C 5/10 Converted file to current software and corrected formatting errors. Updated Cover and Revision page with current design logo. Reorganized form into sections and updated TOC. Page 4: Added Model Number Nomenclature section. Page 5: Added Serial Number Nomenclature section. Page 6- 8: Added Unit Code Index section. Page 9: Added Coil Section. Page 11: Changed footnote #1 to: "Part numbers ordered per Code Item on original G.O. Contact McQuay Parts with model and serial number information so the needed part(s) can be correctly identified." Page 12: Changed footnote #1 to: "Assemblies include: Rods, Shafts, Bearings, Hardware & Miscellaneous Parts. For individual linkage parts, see Variable Inlet Vane Components listing." Page 14, 15: Added Low Leak Damper section. D 01/15 Cover, Rev pg.: Updated to Daikin Applied logo format. Various: Changed "McQuay Parts" to "Daikin Applied". Page 9: Rewrote coil notes. Reorganized page contents. Updated TOC. Page 14: Rewrote footnote #1.

Daikin Applied, 13600 Industrial Park Blvd., P.O. Box 1551, Minneapolis, MN 55440 (763) 553-5330

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 3

Model Number Nomenclature

LSL

1

37

C

H

Unit Type First Letter = Blower Section Second Letter = Unit Type Third Letter = Coil Section LSL = Low Pressure, Single Zone, Low Pressure MSL = Medium Pressure, Single Zone, Low Pressure LML = Low Pressure, Multi Zone, Low Pressure MMM = Medium Pressure, Multi Zone, Medium Pressure LWL = Low Pressure, Water Sprayed Coil, Low Pressure MWL = Medium Pressure, Water Sprayed Coil, Low Pressure LYF = Low Pressure, Ventilating, Draw Thru LHD = Low Pressure, Heating and Ventilating, Draw Thru

Air Intake into Blower Section H = Horizontal Air Intake V = Vertical Air Intake I = Inverted

Number of Fans

Nominal Coil Face Area (in Square Feet)

Vintage

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 4

Serial Number Nomenclature

3 Z F 12345 00 Engineering Revision

Plant Identification 3 = Faribault, MN 9 = Scottsboro, AL

Sequence Number

Year of Manufacture A = 1971 B = 1972 C = 1973 D = 1974 E = 1975 F = 1976 G = 1977 H = 1978 J = 1979 K= 1980 L = 1981 M = 1982 N = 1983 P = 1984 Q = 1985

R = 1986 S = 1987 T = 1988 U = 1989 V = 1990 W = 1991 X = 1992 Y = 1993 Z = 1994 5 = 1995 6 = 1996 7 = 1997 8 = 1998 9 = 1999

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Month of Manufacture A = January B = February C = March D = April E = May F = June G = July H = August

Rev.D 01/15

J = September K = October L = November M = December

RPL 552227 / Page 5

Unit Code Index Code 03= Fan Wheel and Housing

Code 09= Unit Voltage

A= Forward Curved Steel Wheel B= Forward Curved Aluminum Wheel C= Forward Curved Hot Dipped Galvanized Wheel D= Airfoil Wheel E= Forward Curved Steel Wheel with Mechanical Speed Control F= Airfoil Wheel with Mechanical Speed Control L= Forward Curved Wheel with Variable Inlet Vanes V= Airfoil wheel with Variable Inlet Vanes

11= 115/60/1 12= 200/60/3 16= 115/230/60/1

Digit 1, Unit Arrangement H= Horizontal V= Vertical I= Inverted Digit 2, Cabinet (Does not apply to LSL/MSL) 1= Standard Fan Cabinet Digit 3, Unit Options (Does not apply to LSL/MSL) 0= Basic Unit LH Air Intake (LYF Only) 0= Basic Unit LH, Bottom, or Top Air Intake (LHD Only) 0= Horizontal Discharge LH air Intake (LML/MMM Only) 1= Basic Unit RH Air Intake (LYF/LHD Only) 1= Horizontal Discharge RH air Intake (LML/MMM Only) 2= Vertical Discharge LH air Intake (LML/MMM Only) 3= Vertical Discharge RH air Intake (LML/MMM Only) 4= Internal Face & Bypass Top LH Air Intake (LHD Only) 5= Internal Face & Bypass Top or RH; RH, Bottom or Top Air Intake (LHD Only) 6= External Face & Bypass Top or LH Duct; LH, Bottom or Top Air Intake (LHD Only) 7= External Face & Bypass Top or RH Duct; RH, Bottom or Top Air Intake (LHD Only) 8= External Face & Bypass Bottom Duct; LH Air Intake (LHD Only) 9= External Face & Bypass Bottom Duct; RH Air Intake (LHD Only) Digit 4, Section Options (Does not apply to LSL/MSL) 1= No Access or Auxiliary Coil Section 1= No Access or Auxiliary Coil Section w/ 1 or 2 Row Coil (LHD Only) 2= Leaving Air Access Section, no Auxiliary Coil Section 3= No Access Section w/ Auxiliary Coil Section 4= Entering Air Acess Section w/ Auxiliary Coil Section 5= Leaving Air Access Section w/ Auxiliary Coil Section 8= No Access or Auxiliary Coil section w/ a 3 or 4 Row Coil

Code 05= Mounting Arrangement A= Top Mounting Holes B= Bottom Mounting Holes

Code 06= Fan Discharge and Motor Location 4= CCBH 5= CU 6= CCU

7= CD 8= CCD

Code 10= Motor Base and Bearings Y= None 1= Rigid base, Ball Bearing

Y= None A= 1800 RPM, Open Dripproof B= 1800 RPM, Totally Enclosed Fan Cooled C= 1800 RPM, Explosion Proof D= 1800/900 RPM, Two Speed, One Winding E= 1800 RPM, Open Dripproof High Efficiency

Code 12= Motor Mounting Y= None 1= Factory Mounted Motor 2= With Motor, Field Mounted 3= Factory Mounted Motor 50HZ 4= With Motor, Field Mounted 50HZ

Code 13= Fan/Fan Mount/Drive Selection Digit 1, Fan and Drive Type Selection A= Variable Speed Drive (3-10HP LSL/MSL Only) B= Standard Forward Curve Fan, Isolated Fan mount, Variable Speed Drive C= Optional Forward Curve Fan, Variable Speed Drive D= Airfoil Fan, Variable Speed Drive F= Airfoil Fan, Fixed Drive or Maxi-Drive F= Fixed Drive (15-75HP LSL/MSL Only) L= Standard Forward Curve Fan, Fixed Speed Drive M= Optional Forward Curve Fan, Fixed Speed Drive Digit 2 & 3, Drive Selection Contact Daikin Applied with model and serial number information in order to identify the needed part(s). Digit 4, Fan Discharge 1= Code 06 equals 1, or 2 2= Code 06 equals 2, or 4 3= Code 06 equals 3, or 6 4= Code 06 equals 4, or 8

Code 14= Lubrication Lines & Insulation 1= Standard Lube lines 1", 3/4# Insulation 2= Standard Lube lines No Insulation 3= Standard Lube lines 1", 1 1/2# Insulation 4= Standard Lube lines 1", 3# Insulation 5= Copper Lube Lines 1", 3/4# Insulation 6= Copper Lube lines No Insulation 7= Copper Lube Lines 1", 1 1/2# Insulation 8= Copper Lube lines 1", 3# Insulation

Code 15= Not A Central Station Air Handler Code

Code 07= Motor Location

29= 230/60/3 37= 575/60/3

Code 11= Motor RPM and Enclosure

Code 04= Unit Arrangement

1= CH 2= CCH 3= CBH

21= 230/460/3 27= 460/60/3 28= 380/50/3

Contact Daikin Applied if more information is required.

Y= None

Code 08= Motor Size A= .25 HP B= .33 HP C= .50 HP D= .75 HP E= 1.0 HP

F= 1.5 HP G= 2.0 HP H= 3.0 HP J= 5.0 HP K= 7.5 HP

L= 10.0 HP M= 15.0 HP N= 20.0 HP O= 25.0 HP P= 30.0 HP

Q= 40.0 HP R= 50.0 HP S= 60.0 HP T= 75.0 HP

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 6

Unit Code Index, Continued Code 16= Accessory Arrangement Digit 1, Accessory Section Code 04= H*** or I*** Y= None A= Filter Section Only B, C, D= Filter Section and or Mixing Box with Dampers E, F, G= Filter Section and or Mixing Box without Dampers Digit 1, Accessory Section Code 04= V*** Y= None H, K, M= Base Mounted Filter Section and or Mixing Box with Dampers J, L, N= Base Mounted Filter Section and or Mixing Box without Dampers Digit 2, Filter Section 0= No Filters 1= Flat Filters End Removal 2= Flat Filters Right Side or Bottom Removal 3= Flat Filters Left Side or Top Removal 4= Angular Filters 5= Heavy Duty Angular Filters Digit 3, Filter Type 0= None 1= Throwaway 2= Cleanable Low Velocity 3= Cleanable High Velocity 4= Throwaway, 35% Pleated

Code 17= Auxiliary Coil Section

Code 23= Standard Coil Section, 2nd Coil Y= None S= Small Coil L= Large Coil E= Extra Large Coil

Code 24= Coil Types and Rows, 2nd Coil For coil features see Contractor Coil codes in Unit Coil Section. YYYYYYYYYYYYYYY= None XXXXXXXXXXXXXXX= Special Coil

Code 25= Coil Connection Location, 2nd Coil Y= None D= Drive End E= Opposite Drive End

Code 26= Standard Coil Section, 3rd Coil Y= None S= Small Coil L= Large Coil E= Extra Large Coil

Code 27= Coil Types and Rows, 3rd Coil For coil features see Contractor Coil codes in Unit Coil Section.

Y= None S= Small Coil L= Large Coil

YYYYYYYYYYYYYYY= None XXXXXXXXXXXXXXX= Special Coil

Code 18= Auxiliary Coil Type and Rows For coil features see Contractor Coil codes in Unit Coil Section.

Y= None D= Drive End E= Opposite Drive End

YYYYYYYYYY= None XXXXXXXXXX= Special Coil

Code 19= Auxiliary Coil Connection Location Y= None D= Drive End E= Opposite Drive End

Code 20= Standard Coil Section, 1st Coil Y= None S= Small Coil L= Large Coil E= Extra Large Coil

Code 21= Coil Types and Rows, 1st Coil For coil features see Contractor Coil codes in Unit Coil Section.

Code 28= Coil Connection Location, 3rd Coil

Code 29= Optional Features Y= None A= Gasketed Damper Blades on Mixing Box & Bypass Dampers B= Outdoor Construction with Weatherhood C= Flex Connector on Blower Intake F= Stainless Steel Drain Pan Liner K= Insulated Mixing Box L= Items A & F M= Enclosed Belt Guard N= Insulated Filter Section P= High Static Fan Wheel Q= 16 ga. Minimum Panel Unit Construction W= Outdoor Construction less Weatherhood X= Special

YYYYYYYYYYYYYYY= None XXXXXXXXXXXXXXX= Special Coil

Code 22= Coil Connection Location, 1st Coil Y= None D= Drive End E= Opposite Drive End

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 7

Unit Code Index, Continued Code 30= Plug-In Door (Blower Section) Digit 1, Access Door Location Y= None 1= Top, Opposite Drive End 2= Side, Opposite Drive End X= Special Digit 2, Access Door Dimensions Y= None A= 8" x 9" B= 12" x 24" C= 18" x 24" X= Special

Code 31= Plug-In Door (Coil Section) YY= None 6C= 18" x 24" 7C= 18" x 24" XX= Special

Code 32= Miscellaneous Y= None X= Special

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 8

Coil Notes & Sample Contractor Coil Code Strings Coil Notes Note: ALL Central Station Air Handlers use "Contractor" style coils. Contractor Coils are ordered as SEPARATE LINE ITEMS on the GO/General Order (Example: 976230-017), so they DO NOT have standard nine digit Daikin Applied part numbers. When a replacement Contractor Coil is required a Contractor Coil Quote needs to be prepared. To quote a replacement Contractor Coil it is necessary to obtain model and serial number information from the unit nameplate and then contact Daikin Applied. If the unit has more than one coil it will be necessary to confirm which coil(s) are needed BEFORE quoting. Note that the sample code strings shown below are incomplete and DO NOT furnish enough information to correctly quote a Contractor Coil. GO and/or serial number information is required in order to properly quote a Contractor Coil. In some instances, coils were manufactured separately from the unit and may have a unique serial number such as 9Z12345-00. A coil with a serial number starting with a "9" was built in Scottsboro AL and may or may not have been installed in a unit before shipment.

Sample Contractor Coil Code Strings

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 9

Fan Section

Assembly Diagram

2

1

3

4 5 

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 10

Fan Section Components

Unit Sizes - Pieces Per Unit Bub. No. N/S N/S N/S N/S

Part Number

Description MOTOR BELT SHEAVES BUSHINGS

137C 141C 150C 164C 172C

1 1 1 1

Note: Each Airfoil Fan has (1) CW Wheel and (1) CCW Wheel

1 1 1 1

BLOWER WHEEL, AIRFOIL, NO. 27, CW BLOWER WHEEL, AIRFOIL, NO. 30, CW BLOWER WHEEL, AIRFOIL, NO. 33, CW BLOWER WHEEL, AIRFOIL, NO. 36, CW

066543201 1 066543203 1 066543205 1 066543207

1

1



2 2 2 2

BLOWER WHEEL, AIRFOIL, NO. 27, CCW BLOWER WHEEL, AIRFOIL, NO. 30, CCW BLOWER WHEEL, AIRFOIL, NO. 33, CCW BLOWER WHEEL, AIRFOIL, NO. 36, CCW

066543202 1 066543204 1 066543206 1 066543208

1

1



3 3 3 3

BLOWER HOUSING UNITS WITH INLET VANES BLOWER HOUSING UNITS WITH INLET VANES BLOWER HOUSING UNITS WITH INLET VANES BLOWER HOUSING UNITS WITH INLET VANES

035543601 1 035543602 1 035543603 1 035543604

1

1



3 3 3 3

BLOWER HOUSING UNITS WITHOUT INLET VANES BLOWER HOUSING UNITS WITHOUT INLET VANES BLOWER HOUSING UNITS WITHOUT INLET VANES BLOWER HOUSING UNITS WITHOUT INLET VANES

031633401 1 031633402 1 031633403 1 031633404

1

1



4 4 4 4

DRIVE SHAFT, 2-3/16 DIA. DRIVE SHAFT, 2-7/16 DIA. DRIVE SHAFT, 2-7/16 DIA. DRIVE SHAFT, 2-11/16 DIA.

035287901 1 033172901 1 032586301 1 034270500

1

1



5 5 5 N/S N/S N/S N/S N/S

PILLOW BLOCK BEARING, 2-3/16" BORE 020648606 2 PILLOW BLOCK BEARING, 2-7/16" BORE 020648607 2 2 PILLOW BLOCK BEARING, 2-11/16" BORE 020648608 INLET VANE ASS'Y., NO. 27, CW 2 032739300 1 INLET VANE ASS'Y., NO. 30, CW 2 032739400 1 INLET VANE ASS'Y., NO. 33, CW 2 032739500 1 INLET VANE ASS'Y., NO. 36, CW 2 032739600 INLET VANE ASS'Y., NO. 27, CCW 2 032738700 1

2

2

N/S N/S N/S

INLET VANE ASS'Y., NO. 30, CCW 2 032738800 1 INLET VANE ASS'Y., NO. 33, CCW 2 032738900 1 INLET VANE ASS'Y., NO. 36, CCW 2 032739000

53.81"L 57.88"L 62.00"L 67.12"L

1 1

1 1

Part numbers ordered per Code Item on original G.O. Contact Daikin Applied with model and serial number information so the needed part(s) can be correctly identified. 2 Part of housing assembly 0355436( _ _). 1



Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 11

Variable Inlet Vanes Diagram & Assemblies 1

HORIZONTAL DISCHARGE SHOWN (Upblast Discharge slightly different in arrangement.)

A

VIEW A-A

(One side only shown)

9 8

6

10 

12

7

11

A Unit Sizes - Pieces Per Unit Description HORIZONTAL DISCHARGE 27" FAN 30" FAN 33" FAN 36" FAN UPBLAST DISCHARGE 27" FAN 30" FAN 33" FAN

36" FAN

Part Number

137C 141C 150C 164C 172C

035285901 1 035285902 1 035285903 1 035285904

035286001 1 035286002 1 035286003

1

1

1

1

1

035286004

Assemblies include: Rods, Shafts, Bearings, Hardware & Miscellaneous Parts. For individual linkage parts, see Variable Inlet Vane Components listing.

1

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 12

Variable Inlet Vanes Components

Bub. No.

Part Number

Description

    SHAFT-LEFT VANE LINKAGE TO RIGHT VANE LINKAGE 6 SHAFT WELD ASSEMBLY 27" FAN 6 SHAFT WELD ASSEMBLY 30" FAN 6 SHAFT WELD ASSEMBLY 33" FAN 6 SHAFT WELD ASSEMBLY 36" FAN     LINKAGE ROD-VANE TO SHAFT BELL ARM 7 .50" DIAMETER, 27.45" LONG 27" HORIZONTAL FAN 7 .50" DIAMETER, 29.45" LONG 27" UPBLAST FAN 7 .50" DIAMETER, 34.38" LONG 30" FAN 7 .50" DIAMETER, 42.50" LONG 33" FAN 7 .50" DIAMETER, 47.38" LONG 36" FAN 8 FLANGE BEARING, 1.00" BORE DIAMETER 9 BEARING BRACKET 10 BELL ARM 11 BALL JOINT, FEMALE 12 BALL JOINT, MALE

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Unit Sizes - Pieces Per Unit  137C 141C 150C 164C 172C

035287800 1 033173200 1 035547800 1 035282400

1

1

035281804 2 035281805 2 035281803 2 035281801 2 035281802 020649301 2 2 2 035281300 2 2 2 028370000 1 1 1 027671100 2 2 2 027671000 2 2 2

2 2 2 1 2 2

2 2 2 1 2 2

Rev.D 01/15

RPL 552227 / Page 13

Low Leak Dampers Diagram & Assemblies 17 16

23 21

20

19 18 6

15

22

7

Damper Assemblies 1 Bub. No. 5 1

5 5

Part Number

Description Low Leak Damper Assembly 31 7/8" x 112 3/8" Low Leak Damper Assembly 39 5/8" x 112 3/8" Low Leak Damper Assembly 47 5/8" x 112 3/8"

Unit Size 137C 141C 150C 164C 172C

048545101 1 048545001 1 1 048545701

1

1

Note: NO Damper Actuators, Actuator Linkage, sensors, OR controls were supplied with Central Station Air Handler units. If a field supplied item is required, contact Daikin Applied with vendor and vendor part number information to see if a suitable replacement can be obtained.

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Rev.D 01/15

RPL 552227 / Page 14

Low Leak Dampers Components

Bub. No.

Description

6 Damper Blade (Less Gasket) 7 Damper Blade Center Support Damper Blade Center Support Damper Blade Center Support 15 Damper Blade Gasket Gasket ordered by the foot as required 16 Driven Damper Blade End Plug Assy. RH 17 Driven Damper Blade End Plug Assy. LH 18 Non Driven Damper End Plug RH 19 Non Driven Damper End Plug LH 20 Nylon Damper Blade Bushing 21 Nylon Damper Blade Drive Shaft Bushing 22 Nylon Linkage Bar Bushing 23 0.50" Locking Collar

Air Handler; LSL, MSL, MMM, etc. 137-172 Vintage C

Part Number

Qty. for Unit Size 137C 141C 150C 164C 172C

047793302 4 5 5 6 6 047792401 1 048545401 1 1 048546001 1 1 029870900 - - - - 044961208 1 1 1 1 1 044961209 1 1 1 1 1 041003508 3 4 4 5 5 041003509 3 4 4 5 5 043730400 6 8 8 10 10 043734000 4 4 4 14 14 046098300 8 10 10 12 12 049115902 2 2 2 2 2

Rev.D 01/15

RPL 552227 / Page 15