To find your Daikin McQuay Parts distributor, call 1-800-377-2787 or visit www.DaikinMcQuay.com
Contents
Parts List Revision History .......................................................................................................................................................5- 6
100% Outside Air Damper with Hood- No Return Air Plenum ..........................................................................................22
100% Outside Air Damper .................................................................................................................................................23
0 - 30% Outside Air Section w/ ACT3 ...............................................................................................................................24
0- 100% Economizer Section with Barometric Exhaust Damper- Units without Return Air Fans .....................................25
0- 100% Economizer Section with Barometric Exhaust Damper- Units with 44” Return Air Fans ....................................26
0- 100% Economizer Section with Prop Exhaust Fan & Damper ......................................................................................27
Return Air Plenum Isolation Damper w/ Actuator ACT6 ....................................................................................................32
Prop Exhaust Fan & Damper ............................................................................................................................................33
Prop Exhaust Fan Inverter and Control Box ......................................................................................................................34
Return Air Fan Detail- Fan Mounts (Until 11/04) ...............................................................................................................36
Return Air Fan Detail- Fan Mounts (11/04 & Later) ...........................................................................................................37
Return Air Fan: Code 21= 44B* or 44W* ..........................................................................................................................38
Return Air Fan Motors .......................................................................................................................................................39
Forward Curved Fans- High Pressure (FCMP) .................................................................................................................56
Air Foil Fan- Double Width ..........................................................................................................................................57, 58
Air Foil- Double Width- VAV Assembly .............................................................................................................................59
Air Foil Fan- Single Width- RDT (Draw-Thru/No Heat) Units ......................................................................................60, 61
Air Foil- Single Width- VAV Assembly ...............................................................................................................................62
Fan Mounts- 33” Forward Curved Fan (Until 11/04) .........................................................................................................63
Fan Mounts- 33” Forward Curved Fan (11/04 & Later) .....................................................................................................64
Fan Mounts- 36” Forward Curved Fan (Until 11/04) .........................................................................................................65
Fan Mounts- 36” Forward Curved Fan (11/04 & Later) .....................................................................................................66
Fan Mounts- 40” Forward Curved Fan (Until 11/04) .........................................................................................................67
Fan Mounts- 40” Forward Curved Fan (11/04 & Later) .....................................................................................................68
Fan Mounts- 33” Airfoil Double Width Fan (Until 11/04) ....................................................................................................69
Fan Mounts- 33” Airfoil Double Width Fan (11/04 & Later) ...............................................................................................70
Fan Mounts- 36” Airfoil Double Width Fan (Until 11/04) ....................................................................................................71
Fan Mounts- 36” Airfoil Double Width Fan (11/04 & Later) ...............................................................................................72
Fan Mounts- 40” Airfoil Double Width Fan (Until 11/04) ....................................................................................................73
Fan Mounts- 40” Airfoil Double Width Fan (11/04 & Later) ...............................................................................................74
Fan Mounts- 44” AFSW- RDT Units (Until 11/04) .............................................................................................................75
Fan Mounts- 44” AFSW- Draw-Thru/No Heat Units (11/04 & Later) .................................................................................76
Fan Mounts- 49” AFSW- RDT Units (Until 11/04) .............................................................................................................77
Fan Mounts- 49” AFSW- RDT Units (11/04 & Later) .........................................................................................................78
Supply Air Fan Motors .......................................................................................................................................................79
Belt Guard .........................................................................................................................................................................80
Inverters & Inverter Bypass Control Box (Until 3/05)
Motor HP 5 - 25 ............................................................................................................................................................81
Motor HP 30 - 75 ..........................................................................................................................................................82
Inverters & Inverter Bypass Control Box (3/05 to 10/06)
Motor HP 5 .............................................................................................................................................................83, 84
Motor HP 7.5 - 25 ...................................................................................................................................................85, 86
Motor HP 30 - 75 ....................................................................................................................................................87, 88
Inverters & Inverter Bypass Control Box (1/07 & Later)
Motor HP 5 ...................................................................................................................................................................89
Motor HP 7.5 - 25 ...................................................................................................................................................90, 91
Motor HP 30 - 75 ....................................................................................................................................................92, 93
Line Reactors ...............................................................................................................................................................98
Mixing Valves and Actuator (VM1) .............................................................................................................................103
Option 3: Electric Heat— Code 34 first digit = E
Heaters, Hi Limit Cutouts, Diffusers ...................................................................................................................104, 105
Electric Heat Control Box (Until 3/05) .................................................................................................................106- 110
Electric Heat Control Box (3/05 & Later) ............................................................................................................111- 115
Vestibules, Heat Exchangers and Primary Components- 1500, 2000 .......................................................................117
Modulating or Single Stage Burner .....................................................................................................................118- 121
Hi Turn Down Burner ..........................................................................................................................................122- 125
Single Stage or Modulating Burner Controls
MicroTech or No Controls (Until 6/95) ...................................................................................................................126
MicroTech or No Controls (7/95 to 1/01) ..............................................................................................................127
MicroTech II or No Controls (1/01 & Later) ..................................................................................................128, 129
MicroTech III Controls ...........................................................................................................................................130
Hi Turn Down Burner Controls
MicroTech II or No Controls ..........................................................................................................................131, 132
MicroTech III Controls ...........................................................................................................................................133
Gas Train- Inlet ...................................................................................................................................................134- 137
Gas Train- Outlet ........................................................................................................................................................143
Gas Train- Damper Linkage ...............................................................................................................................144- 146
Cabinet Doors, Gasketing, Hardware, and Flue Box Mounting ..........................................................................147- 150
Units with Original Fan Assembly (3 blade prop) ....................................................................................................159, 160
Units with New Fan Assembly (4 blade prop) ........................................................................................................161, 162
Condenser Control Box- Original MicroTech (Until 3/05) .......................................................................................174- 184
Condenser Control Box (RCS Units Only)- MicroTech II or No Controls (3/05 & Later) .........................................185- 190
Condenser Control Box (RCS Units Only)- MicroTech III Controls (9/08 & Later) ..................................................191- 193
Speedtrol Control Box and Transformer ..........................................................................................................................194
McQuay Supplied Line Voltage Box- T6, DS6, FU6A, FU6B, FU6C ..............................................................................195
Control Panel- Units with MicroTech Controls (Until 1/01) ......................................................................................197- 199
Control Panel- Units with MicroTech II Controls (1/01 until 3/05) ............................................................................200- 202
Control Panel- Units without MicroTech Controls (Until 3/05) .................................................................................203, 204
Power Panel- Until 3/05 ...........................................................................................................................................205- 226
MicroTech II or No Controls Control Panel (3/05 & Later) .......................................................................................227- 233
MicroTech III Units with Controller (9/08 & Later) ...................................................................................................234- 236
Power Panel w/ Semihermetic Compressors (10/04 to 12/04)- Diagram ........................................................................237
Power Panel (3/05 to 10/06) ....................................................................................................................................238- 263
Power Panel (1/07 & Later) .....................................................................................................................................264- 288
Units with Semi-Hermetic Discus Compressors: Code 44= H or K .................................................................................290
Units with Scroll Compressors: Code 44= Z or T ............................................................................................................291
05/11 Archived Revisions A- C.
D 2/09 Page 11 Code 15- Added MicroTech III to selection F.
Page 13 Codes 12 & 18- added MicroTech III.
Page 14 Added MicroTech III to drawings.
Page 15 Added EXPA,B,D to electrical legend.
Page 18 Added R81-88 to electrical legend.
Page 19 Added TD20 to electrical legend.
Page 20 Added MicroTech III to notes.
Page 39 Ref. #7- added p/n 193414600 for MicroTech III controls.
Page 41 SPS5- added MicroTech III to footnote.
Page 99 Ref. #5, 7 & 8- added p/n 193414600 for MicroTech III controls.
Page 112 F33- 60KW 460/575V deleted.
Pages 125, 126 Added “No Controls” to subheading.
Page 127 Ref. #32- added p/n 193423703 for units built 9/08 & later. Added “No Controls” to subheading.
Page 128 Added new for Modulating Burner controls used with MicroTech III controls. Document Repaginated.
Page 129 Added “MicroTech II” & “No Controls” to subheading.
Ref. #32- added p/n 193423703 for units built 9/08 & later.
Diagram Changed “TD11” To “TD10”.
Page 130 Added new for HTD Burner controls used with MicroTech III controls. Document Repaginated.
Page 152 Ref. #7 & 8- added p/n 193414600 for MicroTech III controls.
Pages 182- 187 Added “No Controls” to subheading.
Pages 224- 230 Added “No Controls” & “MicroTech II” to subheading.
Pages 231- 233 Added new for MicroTech III main control panel. Document Repaginated.
Page 278 Ref. #1- 208/230V, 460V AL, 575V AL p/n changed to 349932523.
Ref. #1A- deleted.
Ref. #3- 208/230V, 460 AL p/n changed to 349934149; 575V AL p/n changed to 349934147.
Ref. #3E- 208/230V, 460V AL & 575V AL p/n changed to 349933821. Desc. chg. to “Aux. Contact- 1NO or NC.
Page 279 Ref. #1- all voltages p/n changed to 349932523.
Ref. #3- p/n 349934107,08,09 changed to 349934147,48, 49 respectively.
Ref. #3A deleted.
Page 280 Ref. #1 & 2- p/n for 208/230V changed to 349932523.
Ref. #3 & 4- p/n for 208/230V changed to 349934149.
Ref. # 3E & 4E- 208/230V p/n changed to 349933821.
Page 281 Ref. #1- 208/230V, 575V AL p/n changed to 349932523. Ref. #1A- deleted.
Ref. #3- p/n 349934109, 08 changed to 349934149,48 respectively.
Ref. #3E- p/n for all voltages changed to 349933821.
E 4/09 Page 10- 15 Arrange Code Index into numerical order. (Added two pages). Page 32 Change Damper Type Powered sub-heading from C20=D*, F* to C20=E*, G* Change Damper Type Baromettic sub-heading from C20=E*, G* to C20=D*, F* Page 161 Removed footnote 4.
F 5/09 Page 161 Ref #35 change TEAO p/n from 060001500 to 11206001 and add 1.5 HP to description.
G 5/09 Page 41 Ref #7 change RAT sensor p/n from 193414600 to 193414601.
Page 101 Ref #5 change EFT sensor p/n from 193414600 to 193414601. Ref #8 change SAT & DAT sensor p/ns from 193414600 to 193414601. Ref #7 change OAT sensor p/n from 193414600 to 193414601. Page 154 Ref #7 & 8 change OAT & DAT sensor p/ns from 193414600 to 193414601. Page 235 Change DAT, EFT, OAT, RAT, EAT, LAT p/ns from 193414600 to 193414601.
H 8/09 Page 235 Add Remote Interface Display p/n 193408001.
I 12/09 Updated Cover and Revision pages with current logo design. Page 60 Changed Footnote #3 p/n from 031771703 to 031771600.
J 3/10 Page 61 Corrected Code markers for Ref. 4 from C40= to C31=. Corrected fan size for p/ns 110942010 & 093413572.
K 5/10 Page 198, 201 Added Condenser Control box lock/key p/n 001157200 & key only p/n 021993200.
L 5/10 Corrected various formatting and style issues to ensure document consistency.
Pages 2- 4 Corrected various mismatched TOC entries and page headings.
Page 8 Corrected invalid Coil size (Code 03) entry from “E” to “L”.
Page 22, 55 Removed comment regarding Rapid CD and replaced text with: “The drive components (fan sheave, motor
sheave, belt, and fan bushing) are not listed as they are unique to the unit. If a drive component is
required you may use the number from the part and cross reference it with the Drive Components
Cross Reference form number: 571006, or contact McQuay Parts Parts to ensure that the needed
part(s) are correctly identified.”
Page 101, 156 Removed footnote #1 for SD1.
L 5/10 Page 129, 131 (old), 129, 130, 132, 133 (New) Split diagram and table into two pages due to lack of additional room for
(cont.) update of Gas Heat relays R20- R23B. Repaginated document and updated TOC.
Page 187, 191 (Old) 189, 193 (New) Changed invalid GFR4 p/n 034937502 to 349937502.
Page 189, 198 (Old) 191 , 193 (New) Replaced obsolete 600A disconnect switch p/n 349935332 w/ 193438002,
handle p/n 349935631 w/ 193437901, and shaft p/n 349962303 w/ 349962241. Added footnote #3.
Page 267, 268 (old) 269, 270 (New) Replaced obsolete 600A disconnect switch p/n 349935326 w/ 193438205,
mechanism 349961205 w/ p/n 193455001, and shaft mod 349962207 w/ 349962242. Replaced obsolete 800A
disconnect switch p/n 349935425 w/ 193438201, mechanism 349961205 w/ p/n 193455001, and shaft mod
349962207 w/ 349962242. Replaced obsolete 1000A disconnect switch p/n 349935426 w/ 193438206,
mechanism 349961205 w/ p/n 193455001, and shaft mod 349962207 w/ 349962242. Updated footnote #3
from: “use switch p/n 349935332, handle kit p/n 349935631, shaft p/n 349962302, and ground lug p/n
349938002.” to “then use switch p/n 193438002, handle kit p/n 193437901, shaft p/n 349962233, and ground
lug p/n 349938002.”
M 6/10 Page 130 Changed p/n 026217000 to 061019403.
N 7/10 Page 36 Deleted Ref #110 p/n 098662800 and added footnote #2: “P/N is unit specific. Contact McQuay Parts Parts
with overall length and bolt hole spacing so that the correct part can be identified.” Page 203, 231 Changed Battery p/n from RB2325 to 049754501.
P 8/10 Page 172, 173 Changed Ref #1, 2 p/n 098868802 to 098868803 & p/n 098868803 to 098868804.
Q 9/10 Page 172, 173 Removed footnote notation from Ref #1 Unit Size 105 compressors 098868801, 03, & 04.
R 10/10 Page 291 Added quantity to HGPB Sol. Valve p/n 111011001 5/02 & Later for unit sizes 080- 105.
S 11/10 Corrected misc. formatting issues.
Page 236 Replaced COM p/ns: 193408101 with 090016709; 193408201 with 090016711; 193408202 with 090016712, & 193408301 with 090016710.
T 1/11 Page 236 P/ns for LonWorks DAC & LonWorks SCC were reversed. DAC= 090016712, SCC= 090016711.
U 2/11 Page 39 Changed “No VIV” & “With VIV” headers from “C21=40V*” & “C21=40W*” to “C21=44B* & C21=44W*”.
V 2/11 Various Corrected misc. spelling issues.
Page 236 Changed Terminal block p/ns: 193410402 to 193410302, 193410403 to 193410303, 193410405 to 193410305,
193410406 to 193410306, 193410407 to 193410307 & 193410408 to 193410308.
W 4/11 Page 178, 179 Changed description of p/n 023780212 from 200A/250V to 100A/600V per print.
X 5/11 Page 173 Changed Ref #1 p/n 098868901 to 113119101; 098868903 to 113119103; 098868904 to 113119104;
098868801 to 113119301; 098868803 to 113119203, & 098868804 to 113119204.
Y 6/11 Page 34: Re-arranged/updated Ref #6 Bub & P/ns. Added 6B Blade p/n 300044027, 6C Shaft p/n 300044028, 6D bearing p/n 300044029, 6F Bushing p/n 000804000. Changed 6I motor p/ns from 065820200 & 046514600 to 300046887 & 300046251.
Page 58: Added box to clarify fan position diagram.
Z 7/11 Page 58: Changed Ref #2 40” Inlet Funnel p/n from 031940906 to 031940905.
AA 12/11 Page 236: Changed SPS1-3 p/ns 049545012 to 910124529 & 049545013 to 910124528. Added footnote #2.
AB 03/12 Cover, Pg. 5: Updated to current Daikin McQuay logo format.
Page 5: Archived Rev C. Deleted one page of Revisions. Updated TOC and repaginated form.
Page 130, 133 (OLD) 129, 132 (NEW): Changed p/n 193454702 to 193454703.
Page 130 (OLD) 129 (NEW): Replaced table using 7000108 pg. 88 and added footnotes.
AC 06/12 Various: Changed ‘McQuay Parts” to “Daikin McQuay Parts”.
Page 94: Added footnote for 401 Inverters.
Page 95: Added footnote for 550 Keypad Display p/n.
Page 116: Changed header from “500/650” to “500/640”.
AD 07/12 Page 99: Added PC7 retrofit kit p/n 910122413 and footnote #1 for units built 1/00 and Later.
Y= No Heat
A= Natural Gas Heat
E= Electric Heat
S= Steam Heat
W= Hot Water Heat
X= Propane Heat or Fuel Oil Furnace (specials)
Code 05= Split Unit
C= Split at condenser
F= Split at Fan/Heat
Code 06= Insulation and Liners
1= 1”, 3/4# with liners on doors
2= 1½”, 1.5# with solid liners on doors & ceilings
3= 1½”, 1.5# with perforated liners in plenums, solid elsewhere
4= 1½”, 1.5# with solid liners on doors, ceilings and floors
5= 1½”, 1.5# with perforated liners in plenums, solid elsewhere
(including floors)
6= 1½”, 1.5# with St Stl Solid Liners on Doors, Ceilings and Floors
AL= Across-the-Line (std.)
PW= Part Winding Start
PP= Part Winding Compressor & Fan
PS= Part Winding Fans
Code 12= Temperature Controls (continued)
MicroTech II
LD= LonMark w/ Discharge Air Temp. Ctl.
LS= LonMark w/ Space or Zone Ctl.
BD= BACNet w/MSTP w/ Discharge Air Temp. Ctl.
BS= BACNet w/MSTP w/ Space or Zone Ctl.
ED= BACNet w/Ethernet w/ Discharge Air Temp. Ctl.
ES= BACNet w/Ethernet w/ Space or Zone Ctl.
SD= Standalone w/ Discharge Air Temp. Ctl.
SS= Standalone w/ Space or Zone Ctl.
MicroTech III
LE= LonMark w/ Discharge Air Temp. Ctl.
LF= LonMark w/ Space or Zone Ctl.
BE= BACNet w/MSTP w/ Discharge Air Temp. Ctl.
BF= BACNet w/MSTP w/ Space or Zone Ctl.
EE= BACNet w/Ethernet w/ Discharge Air Temp. Ctl.
EF= BACNet w/Ethernet w/ Space or Zone Ctl.
SE= Standalone w/ Discharge Air Temp. Ctl.
SF= Standalone w/ Space or Zone Ctl.
No Controls
YM= No Temperature Controls
YC= No Temperature Controls w/6 to 9 volt DC modulating gas heat
actuator
Code 13= Air Flow Controls
Y= None
1= 1 duct sensor
2= 2 duct sensors
3= 1 duct and 1 space sensor
4= 1 space sensor
5= Duct Hi Limit (DHL) sensor for no controls unit- VAV unit only
Code 14= Inverters
Y= None
X=VAV (special)
Separate Section
1= SA Fan only w/bypass
2= SA & RA Fans w/bypass
4= RA only w/bypass
No Separate Section
3= SA Fan only w/bypass
5= SA & RA Fans w/bypass
6= SA Fan only no bypass
7= SA & RA Fans no bypass
8= RA Fan only w/bypass
9= RA Fan only no bypass
Code 11= Field Power Connection and Disconnect
P1= Single Power Block: Complete Unit
Q1= Two Power Blocks: EH/Balance of Unit
A2= One, thru-the-door Disconnect: Complete Unit
C2= Two, thru-the-door Disconnects: SAF&RAF&CB/Balance of Unit
B2= Two, thru-the-door Disconnects: EHB/Balance of Unit
D2= Three thru-the-door Disconnects: EH/SAF&RAF&CB/Balance of
Unit
Code 12= Temperature Controls
Original MicroTech
1M= MicroTech, CAV, Zone Control
2M= MicroTech, VAV, Discharge Air Cooling Control, Zone/Return Air
Heating Control (Constant Volume)
4M= MicroTech, VAV, Disch. Air Cool and Heating Control
5M= MicroTech, CAV, Disch. Air Cooling or Cool & Heat Control
Code 15= Inlet Vane/Damper Actuators or Inverter Type
Y= None
1= Supply Fan Only
2= Supply and Return Fan
4= Return Fan Only
A= ABB Inverter
G= Graham Inverter
R= Reliance Inverter
S= McQuay MD2, MD3, MD6
F= Field Installed Inverter controlled by MTech II or III
Code 16= Smoke Detectors
1= Return Air Smoke Detector
2= Supply Air Smoke Detector
3= 1 + 2
Y= None
YYYY= None
MicroTech I
KYYY= Unit mounted keypad
BYYY= Unit mounted keypad and modem
MicroTech II or MicroTech III
W___= Wireless Modem (___= Air Handler Length [in.])
M___= Phone Modem (___= Air Handler Length [in.])
R___= Remote Keypad (___= Air Handler Length [in.])
K___= Remote Keypad (___= Air Handler Length [in.])
U___= Unit Powered Receptacle (___= Air Handler Length [in.])
V___= K + U (___= Air Handler Length [in.])
Code 19= Return Air Plenum
YY= None (No return air section)
BY= Bottom Return
HY= Back Return
SY= Side (opp. drive) Return
BE= Bottom Return w/Iso. Damper w/ Actuator
BB= Bottom Return w/Burgler Bars
Code 20= Outdoor Air Options
YY= None
AE= 100% Outside air damper w/hood & actuator
AY= 100% Outside air damper w/hood/no actuator
BE= 0- 30% Outdoor air section w/actuator
BY= 0- 30% Outdoor air section w/o actuator
DE= 0- 100% Econ. w/barometric exhaust damper w/act.
DY= 0- 100% Econ. w/barometric exhaust damper w/o act.
EE= 0- 100% Econ. w/power closure exhaust damper w/act.
EY= 0- 100% Econ. w/power closure exhaust damper w/o act.
HE= 0- 100% Econ. w/prop exhaust damper w/act.
HY= 0- 100% Econ. w/prop exhaust damper w/o act.
FE= same as DE + Design Flow
FY= same as DY + Design Flow
GE= same as EE + Design Flow
GY= same as EY + Design Flow
JE= same as HE + Design Flow
JY= same as HY + Design Flow
KE= same as DE + Ebtron Sensor
KY= same as DY + Ebtron Sensor
LE= same as EE + Ebtron Sensor
LY= same as EY + Ebtron Sensor
ME= same as HE + Ebtron Sensor
MY= same as HY + Ebtron Sensor
Code 21= Return Air Fan
YYYY= No Return Air Fan
44B()= 44” Airfoil w/o vanes
44W()= 44” Airfoil w/vanes
()= isolator type:
1= rubber in-shear
2= spring
3= spring w/seismic restraints
Code 22= Return Air Fan Motor
YYY= No Return Fan
J K Y
Always Y
A= Open Drip-proof motor
E= High Eff. ODP motor
F= High Eff. VAV motor
G= Totally- Enclosed motor
H= High Eff. Totally-Enclosed
J= Premium Eff. ODP
K= Premium Eff. Totally- Encl.
J= 5.0 HP P= 25.0 HP
K= 7.5 HP Q= 30.0 HP
L= 10.0 HP R= 40.0 HP
M= 15.0 HP S= 50.0 HP
BY= Bottom Discharge
GY= Bottom Discharge (SW Supply Fan Only)
BB= Bottom Discharge w/Burglar Bars
GB= Bottom Discharge w/Burglar Bars (SW Supply Fan Only)
BE= Bottom Discharge w/Discharge Damper (VAV) w/act.
FY= Front Discharge (RFS only)
SY= LH Side Discharge (SW Supply Fan only)
HY= LH Side Discharge (SW Supply Fan only)
Code 41= Blank Compartment Section- Out of Airstream
Y= None- no selection required
1= 48/24” Blank Section only- out of airstream with light
2= 48” Blank Section only- out of airstream with light
Code 42= Compressor Capacity Control
4= 4 steps
6= 6 steps
8= 8 steps
Code 43= Condenser Options
AY= Aluminum Fin Air Coil
AG= Aluminum Fin Air Coil w/ Coil Guards
AS= Aluminum Fin Air Coil w/ Seal Tite Conduits
AB= Alum. Fin Coil w/ Coil Guards & STC
CY= Copper Fin Air Coil
Code 47= Low Ambient Operation
1= Fantrol Standard Fans
2= Speedtrol Standard Fans
3= Fantrol Quiet Fans
4= Speedtrol Quiet Fans
5= Fantrol Standard CFM Fans w/TEAO Motor
6= Speedtrol Standard CFM Fans w/ TEAO Motor
7= Fantrol High CFM Fans w/ TEAO Motor
8= Speedtrol High CFM Fans w/ TEAO Motor
Code 48= Future use
Code 49= Supply and Return Fan Options
Y= None
A= SA fan belt guard
B= SA fan section light
C= A + B
D= SA & RA fan belt guard
E= SA & RA section light
F= D + E
ACT1 Actuator Motor, Supply Fan Vanes Supply Air Section
ACT2 Actuator Motor, Return Fan Vanes Return Air Section
ACT3, 4 Actuator Motors, Economizer Dampers Economizer Section
ACT5 Actuator Motor, Discharge Isolation Damper Discharge Section
ACT6 Actuator Motor, Return Air Isolation Damper Return Air Section
ACT7 Actuator Motor, Heat Face/Bypass Coil Section, Heat
ACT8 Actuator Motor, Cool Face/Bypass Coil Section, Cool
ACT 10, 11 Actuator Motors, Exhaust Dampers Return Air Section
ADI ADI Board Main Control Box
AFD10 Adjustable Frequency Drive (Inverter), Supply Fan AFD or Supply Fan Sect.
AFD20 Adjustable Frequency Drive (Inverter), Return Fan AFD or Supply Fan Sect.
AS Blower Air Switch Furnace Section
BM Burner Blower Motor Furnace Section
C1-5 Power Factor Capacitors, Compressor #1 Condenser Section
C2, 6 Power Factor Capacitors, Compressor #2 Condenser Section
C3, 7 Power Factor Capacitors, Compressor #3 Condenser Section
C4, 8 Power Factor Capacitors, Compressor #4 Condenser Section
C9, 10 Power Factor Capacitors, Supply Fan Supply Air Section
C11 Capacitor, Speedtrol (Circuit #1) Cond. Bulkhead
C19, 20 Power Factor Capacitors, Return Fan Return Air Fan
C21 Capacitor, Speedtrol (Circuit #2) Cond. Bulkhead
CB10 Circuit Breaker, Supply Fan Main Control Box
CB20 Circuit Breaker, Return Fan Main Control Box
CCB1, 2 Compressor Control Boards Main or Cond. Ctl. Box
COMPR.1-4 Compressors Condenser Section
CPC Circuit Board, Main, MicroTech Controller Main Control Box
CPR Circuit Board, expansion, Main Controller Main Control Box
CS1, 2 Control Switches, Refrigerant Circuits Condenser Control Box
DAT Discharge Air Temperature Sensor Discharge section
DB1 Daughter Board Main Control Box
DFLH Design Flow Sensor, Left Hand Return Section
DFRH Design Flow Sensor, Right Hand Return Section
DHL Duct High Limit Main Control Box
DS1 Disconnect, Total Unit or Condenser/Heat Main Control Box
DS2 Disconnect, SAF/RAF/Controls Main Control Box
DS3 Disconnect, Electric Heat Electric Heat Section
DS4 Disconnect, Condenser Cond. Control Box
DS6 Disconnect, Unit Supplied 120V Power Bulkhead
EFT Entering Air Temperature Sensor Supply Fan Section
EHB1 Staged Electric Heat Board Main Control Box
EXPA, B, D Expansion Board Main Control Box
F1, 1A Fuse, Control Circuit, T1 Primary Main Control Box
F1C Fuse, Control Circuit, T1 Secondary Main Control Box
F2 Fuse, Control Circuit Condenser Control Box
F3 Fuse, Burner Motor Main Control Box
F4 Fuse, T4 Transformer Main Control Box
F11 Fuse, Speedtrol Motor Main Control Box
F12 Fuse, 208V Speedtrol Motor Main Control Box
FB1 - 4 Fuseblocks, Compressors Condenser/Fuse Ctrl Box
FB8 Fuseblock, Main Transformer Main Control Box
FB9, 10 Fuseblocks, Supply Fan Main Control Box
FB11-18 Fuseblocks, Condenser Fans Cond. Control Box
FB19, 20 Fuseblocks, Return Fan Main Control Box
FB31-40 Fuseblocks, Electric Heat (Top Bank) Electric Heat Section
Schematic Sym. Description LocationFB41-50 Fuseblocks, Electric Heat (Bottom Bank) Electric Heat Section
FD Flame Detector Furnace Section
FLC Fan Limit Control Furnace Section
FS1 Freezestat Coil Section, Heat/Cool
FSG Flame Safeguard Furnace Section
GCB1 Generic Condenser Board Main Control Box
GFS1/GFR1 Ground Fault Sensor/Relay, RPS Unit Main Control Box
GFS2/GFR2 Ground Fault Sensor/Relay, RCS Unit Cond. Control Box
GFS4/GFR4 Ground Fault Sensor/Relay, RCS Unit Cond. Control Box
GRD Ground All Control Boxes
GV1 Gas Valve, Pilot Furnace Section
GV2, 3 Gas Valves, Main Furnace Section
GV4-8 Gas Valve, Hi-Turn Down Furnace Section
HL 1-10 High Limits, Elec. Heaters, Power (Top Bank) Electric Heat Section
HL 11-20 High Limits, Elec. Heaters, Power (Bottom Bank) Electric Heat Section
HL22 High Limit, Gas Heat (Prefilters) Supply Air Section
HL23 High Limit, Gas Heat (Final Filter) Final Filter Section
HL31-40 High Limits, Elec. Heaters, Control (Top Bank) Electric Heat Section
HL41-50 High Limits, Elec. Heaters, Control (Bottom Bank) Electric Heat Section
HP1-4 High Pressure Controls, Refrigerant On Compressors
HP5 High Pressure Control, Gas Furnace Section
HS1 Heat Switch, Electric, Shutdown Main Control Box
HTR1-4 Crankcase Heaters On Compressors
IT Ignition Transformer Furnace Section
LP1,2 Low Pressure Controls, Refrigerant On Compr.
LP5 Low Pressure Control, Gas Furnace Section
LT2 Light, Furnace On Furnace Section
LT3 Light, Pilot Gas Valve On Furnace Section
LT4 Light, Main Gas Valve On Furnace Section
LT10 Light, Supply Fan Supply Air Section
LT11 Light, Return Fan Return Air Section
LT12 Light, Heat Section Heat Section
LT13 Light, Filter Section Filter Section
LT14 Light, Final Filter Section Final Filter Section
LT15 Light, Discharge Section Discharge Section
LT16 Light, Blow-through Coil Section Blow-thru Coil Section
LT17 Light, Evaporator Coil Section Evaporator Coil Section
LT18 Light, Preheat Section Preheat Section
LT19 Light, Blank Section Blank Section
LT20 Light, Blank Compartment Blank Compartment
LT22 Light, Condenser Section Condenser Section
M1-6 Contactors, Compressors Main/Cond. Control Box
M9, 10 Contactors, Supply Fan Main Control Box
M11-18 Contactors, Condenser Fans, Circuit #1 Cond. Control Box
M19,20 Contactors, Return Fan Main Control Box
M21-28 Contactors, Condenser Fans, Circuit #2 Cond. Control Box
M29 Contactor, Burner Motor Furnace Section
M30 Contactor, Supply Fan Inverter Inverter Bypass Box
M31-39 Contactors, Elec. Heaters (Top Bank) Electric Heat Section
M40 Contactor, Return Fan Inverter Inverter Bypass Box
M41-50 Contactors, Elec. Heaters (Bottom Bank) Electric Heat Section
M51, 52, 53 Contactor, Prop Exhaust Fan Motor Return Air Section
Schematic Sym. Description Location
MAT Mixed Air Temperature Sensor Supply Air Section
MCB Microprocessor Control Board Main Control Box
MCB1 Microprocessor Control Board #1 Main Control Box
MJ Mechanical Jumpers Terminal Blocks
MMP1-6 Manual Motor Protectors, Compressors Main/Cond. Control Box
MMP10 Manual Motor Protector, Supply Fan Main Control Box
MMP11, 12 Manual Motor Protectors, Condenser Fans Ckt. 1 Main/Cond. Control Box
MMP20 Manual Motor Protector, Return fan Main Control Box
MMP21,22 Manual Motor Protectors, Condenser Fans Ckt. 2 Main/Cond. Control Box
MMP51, 52, 53 Manual Motor Protectors, Prop Exhaust Fan Motors Return Air Section
MP1-4 Motor Protectors, Compressors On Compressors
NB1, 2 Neutral Blocks Main Control Box
NB3 Neutral Block Cond. Control Box
OAE Outside Air Enthalpy Control Economizer Section
OAT Outside Air Temperature Sensor Discharge Bulkhead
OBA Output Board A, Standard Main Control Box
OBB Output Board B, Cooling Main Control Box
OBC Output Board C, Heating Main Control Box
OL9, 10 Overload Relays, Supply Fan Main Control Box
OL 19,20 Overload Relays, Return Fan Main Control Box
OL 51,52, 53 Overload Relays, Prop Exhaust Fan Return Air Section
OP1-4 Oil Pressure Controls, Compressors Condenser Section
PB1 Powerblock, Total Unit or Cond./Heat Main Control Box
PB2 Powerblock, SAF/RAF/Controls Main Control Box
PB3 Powerblock, Electric Heat Electric Heat Section
PB4 Powerblock, Condenser Cond. Control Box
PB9, 10 Powerblock, Supply Fan Unit Split Junction Box
PB19, 20 Powerblock, Return Fan Unit Split Junction Box
PB31 Power Block, DS3 Power Distribution Electric Heat Control Box
PB41 Powerblock, Power Distribution RCS Control Box
PC5 Pressure Control, Clogged Filter Filter Section
PC6 Pressure Control, Clogged Final Filter Final Filter Section
PC7 Pressure Control, Proof of Airflow Supply Air Filter
PC8 Pressure Control, Minimum Airflow Evaporator Coil Section
PC12, 22 Pressure Control, FanTrol Cond. Bulkhead
PM1 Phone Modem Main Control Box
PS1, 2 Pumpdown Switches, Refrigerant Circuits Cond. Control Box
PS3 Pumpdown Switch, Unit Main Control Box
PVM1 Phase Voltage Monitor, RPS Unit Main Control Box
PVM2, 4 Phase Voltage Monitor, RCS Unit Cond./Fuse Ctrl Box
R1, 2 Relays, High Pressure Reset Main/Cond. Control Box
R3, 4 Relays, Hi Pressure delay Main/Cond. Control Box
R5- 8 Relays, Compressor, Safety/Cool Fail Main/Cond. Control Box
R9, 10 Relays, Compressor Lockout Main/Cond. Control Box
R11, 12 Relays, Low Ambient Main/Cond. Control Box
R12, 13, 14 Relays, Condenser Fan <Main Control Box
R19, 20 Relays, Cool Failure Indicator Main Control Box
R20 Relay, Gas, Steam, Hot Water Heat Main Control Box
R21, 22 Relays, Gas Heat Furnace Section
R23 Relay, Gas Heat, Modulating Valve or Electric Heat Furnace Sect./Elec. Ht. CB
R24 Relay, Gas Heat Alarm Main Control Box
R25 Relay, Gas Heat Start, Supply Fan Inverter Main Control Box
Schematic Sym. Description Location
R26 Relay, Occupied/Unoccupied Main Control Box
R27 Relay, Exhaust Dampers Main Control Box
R28 Relay, Isolation Dampers Main Control Box
R29 Relay, Remote Fire Alarm Main Control Box
R30 Relay, Cool Valve w/ F&B Main Control Box
R45 Relay, UV Lights Main Control Box
R46, 47 Relays, Supply Fan Inverter increase/decrease Main Control Box
R48, 49 Relays, Return Fan Inverter increase/decrease Main Control Box
R62, 64 Relays, Special Main Control Box
R63 Relay, Duct Hi Limit Main Control Box
R66 Relay, RA Smoke Detector Main Control Box
R67 Relay, Supply Fan Enable Main Control Box
R68 Relay, Return Fan Enable Main Control Box
R69 Relay, Inverter Bypass VAV Box Interlock Main Control Box
R81-88 Relays, Smoke Main Control Box
RAE Return Air Enthalpy Sensor Return Air Section
RAT Return Air Temperature Sensor Return Air Section
REC1 Receptacle, Main Box Main Control Box
REC2 Receptacle, Condenser Box Cond. Control Box
REC3 Receptacle, Field Power, 115V Discharge Bulkhead
REC10-23 Receptacles, Cabinet Section Cabinet Sections
S1 Switch, System On/Off, RPS Unit Main Control Box
S2 Switch, System On/Off, RCS Unit Cond. Control Box
S3 Switch, Furnace On/Off Furnace Section
S4 Switch, Inverter Bypass On/Off Main Control Box
S6 Switch, Return Fan Vanes Adjustment Main Control Box
S7 Switch, Local On/Off/Auto to Controller Main Control Box
S10-22 Switches, Cabinet Section Lights Cabinet Sections
S40-45 Switches, Door Interlock, UV Lights Cabinet Sections
SAT Supply Air Temperature Sensor Discharge Section
SB1 Staging Board #1, Cooling Main Control Box
SB2 Staging Board #2, Heating Main Control Box
SC11 Speed Control, Circuit #1 Cond. Bulkhead
SC21 Speed Control, Circuit #2 Cond. Bulkhead
SD1 Smoke Detector, Supply Air Discharge Section
SD2 Smoke Detector, Return Air Return Air Section
SPS1, 2 Static Pressure Sensors, Duct or Building Main Control Box
SPS5 Static Pressure Sensor, Clogged Filter “” Filter Section
SPS6 Static Pressure Sensor, Clogged Final Filter Final Filter Section
SR1-3 Sequence Relays, Electric Heat Electric Heat Section
SV1-4 Solenoid Valves, Liquid Discharge Bulkhead
SV5-8 Solenoid Valves, Hot Gas Discharge Bulkhead
T1 Transformer, Main Control Main Control Box
T2 Transformer, Unit 24V Main Control Box
T3 Transformer, Controller, 18V Main Control Box
T4 Transformer, Exhaust Dampers Main Control Box
T5 Transformer, Electric Heat Electric Heat Section
T6 Transformer, Unit Supplied 120V Voltage Bulkhead
T7 Transformer, Gas Pilot Valve Furnace Section
T8 Transformer, Gas Main Valve Furnace Section
T9 Transformer, 24V Refrigerant Circuit Main Control Box
T10 Transformer, SpeedTrol, 24V Cond. Control Box
Schematic Sym. Description Location
T11 Transformer, Speedtrol, 230V Cond. Control Section
TB1 Terminal Block, 115V, Field Main/Cond. Control Box
TB2 Terminal Block, 24V, Field Main/Cond. Control Box
TB3,4 Terminal Blocks, Condenser Cond. Control Box
TB5 Terminal Block, 115V, Factory Main/Cond. Control Box
TB6 Terminal Block, 115V/24V, Factory Main Control Box
TB7, 8 Terminal Block, 24V, Factory Main Control Box
TB10 Terminal Block, Heating Main Control Box
TB11 Terminal Block, Heating Electric Heat Section
TB12, 13 Terminal Blocks, Electric Heat, Power Electric Heat Section
TB25 Terminal 115V Factory Unit Split Junction Box
TB27, 28 Terminal 24V Factory Unit Split Junction Box
TC1, 2 Temperature Controls, FanTrol Cond. Control Box
TC12 Temperature Control, Fantrol Cond. Control Box
TD1, 2 Time Delays, Compressor Lockout Main/Cond. Control Box
TD3, 4 Time Delays, High Pressure Main/Cond. Control Box
TD5- 8 Time Delays, Compressor Part Winding Cond. Control Box
TD9 Time Delay, Supply Fan Part Winding Main Control Box
TD10 Time Delay, Hi-Turn Down Burner Furnace Section
TD11, 12 Time Delays, Low Ambient Cond. Control Box
TD19 Time Delays, Return Fan Part Winding Main Control Box
TD20 Time Delay, Return Air Fan Main Control Box
TR1, 2 Transducer, Pressure Main Control Box
U1,2 Unloaders, Compressors On Compressors
VM1 Valve Motor, Heating Heating Section
VM5 Valve Motor, Cooling Coil Section, Cool
VV1 Vent Valve Furnace Section
ZNT1 Zone Temperature Sensor, Control Field Installed
ZNT2-5 Zone Temperature Sensors, Special Field Installed
Codes 19 and 20 determine the base section. Code 19 is the Return Air Plenum, and determines if the unit has
back (a.k.a. horizontal) return air, bottom return air, or side return air. The plenum is required for any outdoor air
application with an economizer (Code 20= BE, BY, DE, DY, EE, EY, FE, FY, GE, GY, HE, HY, JE or JY). The only
case in which a plenum is not required is when a 100% outdoor air damper and hood are ordered (C20= AE, AY).
Codes 21, 22, 23 determine the return air fan, motor and drives. These codes only pertain to units with a 0-100%
economizer (C20= DE, DY, EE, EY, FE, FY, GE, GY, HE, HY, JE or JY). The fan section parts, the fans, and the
motors are listed in this section. The drive components (fan sheave, motor sheave, belt, and fan bushing) are
not listed as they are unique to the unit. If a drive component is required you may use the number from the
part and cross reference it with the Drive Components Cross Reference form number: 571006, or contact
Daikin McQuay Parts to ensure that the needed part(s) are correctly identified. The motors range anywhere
from 5- 60 horsepower, and the fan wheel is 40”.
Code 06 determines the panels used in final cabinet assembly (return air units only). For sheet metal components
that make up the Outdoor/Return Air Section, contact Daikin McQuay Parts to insure that correct liners,
insulation and hardware are ordered.
Code 09, the voltage, is part of the motor part number identification.
Code 12, the control system comes into play when an economizer is present. The economizer comes with an actuator
motor on any MicroTech unit (C12= 1M, 2M, 4M, or 5M [original MicroTech] or L*, B*, E* or S* [MicroTech II or III]),
but may not have a motor if the unit has controls by others (C12= YC or YM).
Code 14 determines if the return fan has an inverter, or variable frequency drive. If code 14 equals 1-9 (or X for units
built prior to 2000) , then the unit has inverters, and cannot, therefore have wheels with variable inlet vanes (which
haven’t been used on production units since 2003).
Code 15, determines if Variable Inlet Vanes (VIV) are present (these haven’t been used on production units since
2003). If code 15= 2 or 4, they are present on the return fan.
Code 16 determines if a smoke detector is located in the return air cabinet. If C16= 1 or 3, a smoke detector (SD2)
is present.
Code 17 determines the Enthalpy Control. If C17= Y* and the unit has an economizer there is a mechanical enthalpy
control (OAE). If C17= C*, there is a differential enthalpy control (OAE + RAE).
Code 49 determines if the return air cabinet has a light, switch and receptacle (C49= B), fan belt guards (C49= D)
or both (C49= F).
Ref. Part Actuator Qty.
No. Description C20= AE C20= AY
4 Damper Assy 1 055979603 055979602 1
Damper Only 098313801 039813801 1
9 Liner 056132701 056132701 2
10 Panel- Hood Side 056132203 056132203 1
11 Panel- Hood Side 056132204 056132204 1
12 Panel- Hood Top 056131802 056131802 1
13 Louver 056132002 056132002 5
14 Channel- Support 056132403 056132403 2
15 Channel- Support 056132102 056132102 2
1
Complete assy includes the damper assy and linkage (no actuator) or actuator assy. For Damper components see the
following page.
Note: The outdoor air damper with actuator (C20= AE) must have MicroTech controls. Dampers without actuators (C20= AY)
must have controls by others (12= YM, YC).