/
/








Parts town. Get real parts faster

Shopping Cart

Skip to NavigationSkip to Content
Loading...
Loading...
USD
Multi-SKU Order
LoginRegister
Parts town. Get real parts faster

Find Equipment Manuals

Loading...
Loading...
  1. Home
  2. /
  3. Reznor
  4. /
  5. SDH 400A

Reznor SDH 400A Parts & Manuals

Manufacturer:

Model #:

Reznor

SDH 400A

Air Handler

Air Handler

Model: SDH 400A

Manuals Available: 6

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Installation & Operation Manual

View Manual

Parts Manual

View Manual

Service Manual

View Manual

get special offers & news from parts town

+52 558.957.7295
Loading...
Loading...
visa
visa
mastercard
mastercard
american-express
american-express
discover
discover
paypal
paypal
© 2026 Parts Town. All rights reserved.
Loading...
visa
visa
mastercard
mastercard
american-express
american-express
discover
discover
paypal
paypal

Stock Up on Real OEM HVAC Parts for the Summer Season! SHOP NOW

Call: +52 558.957.7295
Hvac Parts
TECHTOWN
Track My Order
HVAC Parts Are Here!

HVAC Parts Are Here!

Shop the top brands in the industry.

Take Parts Town on the Go!

Take Parts Town on the Go!

Download the industry's #1 app today!

Find the parts you need to fix equipment!

Find the parts you need to fix equipment!

Based on data from techs, powered by AI!

We are ready to help!

We are ready to help!

We offer customer service support in Spanish

Flat rate shipping anywhere in Mexico $49.99

Flat rate shipping anywhere in Mexico $49.99

Inclusive of duties and brokerage.

Find the parts you need to fix equipment!

Find the parts you need to fix equipment!

Based on data from techs, powered by AI!

Help Desk

  • Contact Us
  • Shipping
  • Taxes And Fees
  • Returns
  • FAQ

Inside Parts Town

  • About Us
  • Careers
  • Our Difference
  • Resource Center
  • Parts Town Blog
  • techtown
  • International

Technology and Innovations

  • Parts Town App
  • Parts In Town
  • Serial Number Lookup
  • Smart Manuals
  • Website Features
  • Terms of Use
  • Privacy Policy
  • Privacy Request

Part Category

  • Actuators(1)
  • Bearings & Bushings(3)
  • Belts, Pulleys & Sheaves(14)
  • Brackets & Retainers(5)
  • Burners(2)
  • Capacitors(2)
  • Caps & Plugs(8)
  • Clamps & Clips(2)
  • Compressors(1)
  • Condenser & Evaporator Coils(2)
  • Contactors(3)
  • Controls(10)
  • Decals, Labels & Overlays(11)
  • Disconnects, Couplings & Collars(4)
  • Doors & Hardware(3)
  • Drain Parts(3)
  • Elements, Heaters & Platens(2)
  • Fan & Blower Motors(9)
  • Fan Blades & Blower Wheels(1)
  • Filters, Screens & Driers(27)
  • Fuses, Blocks & Holders(7)
  • Gaskets & Seals(13)
  • Handles(1)
  • Hinges(1)
  • Holders & Supports(8)
  • Hoses, Pipes & Tubing(11)
  • Ignition Modules(1)
  • Ignitors & Electrodes(2)
  • Light Sockets & Lampholders(1)
  • Nuts, Bolts & Screws(14)
  • Orifices(4)
  • Panels, Covers & Lids(13)
  • Pans, Trays & Wells(2)
  • Plates(1)
  • Probes & Sensors(7)
  • Pumps & Motors(13)
  • Relays(18)
  • Rods, Shafts & Pins(1)
  • Shelves & Racks(1)
  • Shields & Guards(9)
  • Springs(2)
  • Switches & Buttons(23)
  • Terminal Blocks(3)
  • Thermostats & High Limits(6)
  • Transformers(4)
  • Valves, Solenoids & Fittings(18)
  • Variable Frequency Drives (VFD)(2)
  • Washers, Rings & Spacers(5)
  • Wires, Cables & Hardware(4)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Part Category

  • Actuators(1)
  • Bearings & Bushings(3)
  • Belts, Pulleys & Sheaves(14)
  • Brackets & Retainers(5)
  • Burners(2)
  • Capacitors(2)
  • Caps & Plugs(8)
  • Clamps & Clips(2)
  • Compressors(1)
  • Condenser & Evaporator Coils(2)
  • Contactors(3)
  • Controls(10)
  • Decals, Labels & Overlays(11)
  • Disconnects, Couplings & Collars(4)
  • Doors & Hardware(3)
  • Drain Parts(3)
  • Elements, Heaters & Platens(2)
  • Fan & Blower Motors(9)
  • Fan Blades & Blower Wheels(1)
  • Filters, Screens & Driers(27)
  • Fuses, Blocks & Holders(7)
  • Gaskets & Seals(13)
  • Handles(1)
  • Hinges(1)
  • Holders & Supports(8)
  • Hoses, Pipes & Tubing(11)
  • Ignition Modules(1)
  • Ignitors & Electrodes(2)
  • Light Sockets & Lampholders(1)
  • Nuts, Bolts & Screws(14)
  • Orifices(4)
  • Panels, Covers & Lids(13)
  • Pans, Trays & Wells(2)
  • Plates(1)
  • Probes & Sensors(7)
  • Pumps & Motors(13)
  • Relays(18)
  • Rods, Shafts & Pins(1)
  • Shelves & Racks(1)
  • Shields & Guards(9)
  • Springs(2)
  • Switches & Buttons(23)
  • Terminal Blocks(3)
  • Thermostats & High Limits(6)
  • Transformers(4)
  • Valves, Solenoids & Fittings(18)
  • Variable Frequency Drives (VFD)(2)
  • Washers, Rings & Spacers(5)
  • Wires, Cables & Hardware(4)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Reznor 221597 LINE REACTOR KDRA28L

Reznor
  • Mfr Part # 221597
  • Parts Town # REZ221597
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 221599 LINE REACTOR KDRA22L

Reznor
  • Mfr Part # 221599
  • Parts Town # REZ221599
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 221610 VFD ACS355-03U-09A8-2+

Reznor
  • Mfr Part # 221610
  • Parts Town # REZ221610
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 221611 VFD ABB 5HP, 208 VOLT

Reznor
  • Mfr Part # 221611
  • Parts Town # REZ221611
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 221618 480V3PH 5HP VARIABLE FREQ DRIV

Reznor
  • Mfr Part # 221618
  • Parts Town # REZ221618
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 223125 Remote User Interface

Reznor
  • Mfr Part # 223125
  • Parts Town # REZ223125
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 234062 ELECT DISCHARGE BYPASS VALVE

Reznor
  • Mfr Part # 234062
  • Parts Town # REZ234062
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 234656 Relay, Reheat, 20A, SPDT

Reznor
  • Mfr Part # 234656
  • Parts Town # REZ234656
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 234712 Pressure Switch, Air Proving, .10" WC

Reznor
  • Mfr Part # 234712
  • Parts Town # REZ234712
  • Quantity0

Out of Stock, backorders usually ship in 10-12 days.

Reznor 256664 FILTER MERV13 16 X 16 X 4

Reznor
  • Mfr Part # 256664
  • Parts Town # REZ256664
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 257464 Guard with Locking Cover, Wall Thermostat

Reznor
  • Mfr Part # 257464
  • Parts Town # REZ257464
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 257554 REC-RAM-EVAP COOLING DRAIN

Reznor
  • Mfr Part # 257554
  • Parts Town # REZ257554
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 259680 VENTER HOUSING MOD

Reznor
  • Mfr Part # 259680
  • Parts Town # REZ259680
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 260052 BURNER SHIELD END ASSEMBLY IDF AJ1

Reznor
  • Mfr Part # 260052
  • Parts Town # REZ260052
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 260062 IDF400 BURNER ASSEMBLY ACCESORY

Reznor
  • Mfr Part # 260062
  • Parts Town # REZ260062
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 26490 10-32 HEX NUT KEPS

Reznor
  • Mfr Part # 26490
  • Parts Town # REZ26490
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 28241 10.3 CARTRIDGE D.C. #732 CLEAR

Reznor
  • Mfr Part # 28241
  • Parts Town # REZ28241
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 29871 BSHG SB-500-6 #2053 BLACK

Reznor
  • Mfr Part # 29871
  • Parts Town # REZ29871
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 31875 TERM BLK CONN.

Reznor
  • Mfr Part # 31875
  • Parts Town # REZ31875
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 36580 Motor, Blower, 200-230/460 Volt, 3 PH, 1725 RPM

Reznor
  • Mfr Part # 36580
  • Parts Town # REZ36580
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 37451 Pulley, Motor, 7/8" Bore

Reznor
  • Mfr Part # 37451
  • Parts Town # REZ37451
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 37661 TEKS 10-16X1/2 HH PL

Reznor
  • Mfr Part # 37661
  • Parts Town # REZ37661
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 39732 CN2 SWITCH DPST 2-POSITION 2X4

Reznor
  • Mfr Part # 39732
  • Parts Town # REZ39732
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

Reznor 40267 240V 30A IND NONFUSE DISCON

Reznor
  • Mfr Part # 40267
  • Parts Town # REZ40267
  • Quantity0

Out of stock, but not out of mind! Place your order now and we'll get it to you ASAP.

121314