/
/
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...

Reznor SDH 300 Parts & Manuals

Manufacturer:

Model #:

Reznor

SDH 300

Air Handler

Air Handler

Model: SDH 300

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
Loading...
visa
visa
mastercard
mastercard
american-express
american-express
discover
discover
paypal
paypal

Stock Up on Real OEM HVAC Parts for the Fall 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
  1. Home
  2. /
  3. Reznor
  4. /
  5. SDH 300

Part Category

  • Actuators(1)
  • Bearings & Bushings(3)
  • Belts, Pulleys & Sheaves(12)
  • Brackets & Retainers(5)
  • Burners(2)
  • Capacitors(2)
  • Caps & Plugs(9)
  • Clamps & Clips(2)
  • Compressors(1)
  • Condenser & Evaporator Coils(1)
  • Contactors(3)
  • Controls(9)
  • Decals, Labels & Overlays(11)
  • Disconnects, Couplings & Collars(4)
  • Doors & Hardware(3)
  • Drain Parts(2)
  • Elements, Heaters & Platens(3)
  • Fan & Blower Motors(9)
  • Fan Blades & Blower Wheels(1)
  • Filters, Screens & Driers(22)
  • Fuses, Blocks & Holders(6)
  • Gaskets & Seals(14)
  • Handles(1)
  • Hinges(1)
  • Holders & Supports(8)
  • Hoses, Pipes & Tubing(13)
  • Ignition Modules(1)
  • Ignitors & Electrodes(2)
  • Light Sockets & Lampholders(1)
  • Nuts, Bolts & Screws(14)
  • Orifices(3)
  • Panels, Covers & Lids(9)
  • Pans, Trays & Wells(1)
  • Plates(1)
  • Probes & Sensors(8)
  • Pumps & Motors(13)
  • Relays(18)
  • Shelves & Racks(1)
  • Shields & Guards(8)
  • Springs(2)
  • Switches & Buttons(21)
  • Terminal Blocks(3)
  • Thermostats & High Limits(5)
  • Transformers(4)
  • Valves, Solenoids & Fittings(17)
  • Variable Frequency Drives (VFD)(1)
  • 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(12)
  • Brackets & Retainers(5)
  • Burners(2)
  • Capacitors(2)
  • Caps & Plugs(9)
  • Clamps & Clips(2)
  • Compressors(1)
  • Condenser & Evaporator Coils(1)
  • Contactors(3)
  • Controls(9)
  • Decals, Labels & Overlays(11)
  • Disconnects, Couplings & Collars(4)
  • Doors & Hardware(3)
  • Drain Parts(2)
  • Elements, Heaters & Platens(3)
  • Fan & Blower Motors(9)
  • Fan Blades & Blower Wheels(1)
  • Filters, Screens & Driers(22)
  • Fuses, Blocks & Holders(6)
  • Gaskets & Seals(14)
  • Handles(1)
  • Hinges(1)
  • Holders & Supports(8)
  • Hoses, Pipes & Tubing(13)
  • Ignition Modules(1)
  • Ignitors & Electrodes(2)
  • Light Sockets & Lampholders(1)
  • Nuts, Bolts & Screws(14)
  • Orifices(3)
  • Panels, Covers & Lids(9)
  • Pans, Trays & Wells(1)
  • Plates(1)
  • Probes & Sensors(8)
  • Pumps & Motors(13)
  • Relays(18)
  • Shelves & Racks(1)
  • Shields & Guards(8)
  • Springs(2)
  • Switches & Buttons(21)
  • Terminal Blocks(3)
  • Thermostats & High Limits(5)
  • Transformers(4)
  • Valves, Solenoids & Fittings(17)
  • Variable Frequency Drives (VFD)(1)
  • Washers, Rings & Spacers(5)
  • Wires, Cables & Hardware(4)
Cool,Calm and Collected- Real OEM HVAC Pars Are in Season! SHOP NOW

Reznor 220554 Expansion Valve/TXV with 60" Capillary, 4 Ton, 5/8" x 7/8" ODF

Reznor
  • Mfr Part # 220554
  • Parts Town # REZ220554
  • Quantity0

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

Reznor 220555 Expansion Valve/TXV, 6 Ton, 5/8" Inet, 7/8" Outlet

Reznor
  • Mfr Part # 220555
  • Parts Town # REZ220555
  • Quantity0

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

Reznor 220558 Expansion Valve/TXV, 15 Ton, 7/8" x 1 1/8" x 1/4"

Reznor
  • Mfr Part # 220558
  • Parts Town # REZ220558
  • Quantity0

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

Reznor 220630 Thermostat with Fan, Wall Mounted, Digital, 24V

Reznor
  • Mfr Part # 220630
  • Parts Town # REZ220630
  • Quantity0

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

Reznor 220843 TEMP CNTL BRD W/POT

Reznor
  • Mfr Part # 220843
  • Parts Town # REZ220843
  • Quantity0

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

Reznor 220844 AIR SENSOR 952669

Reznor
  • Mfr Part # 220844
  • Parts Town # REZ220844
  • Quantity0

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

Reznor 220845 ELEC DISC BYPASS VALVE SDR-3-5/8

Reznor
  • Mfr Part # 220845
  • Parts Town # REZ220845
  • Quantity0

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

Reznor 221585 LINE REACTOR KDRA1L

Reznor
  • Mfr Part # 221585
  • Parts Town # REZ221585
  • Quantity0

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

Reznor 221586 LINE REACTOR KDRA2L

Reznor
  • Mfr Part # 221586
  • Parts Town # REZ221586
  • Quantity0

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

Reznor 221587 LINE REACTOR KDRA3L

Reznor
  • Mfr Part # 221587
  • Parts Town # REZ221587
  • Quantity0

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

Reznor 221593 LINE REACTOR KDRA9L

Reznor
  • Mfr Part # 221593
  • Parts Town # REZ221593
  • Quantity0

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

Reznor 221594 LINE REACTOR KDRA25L

Reznor
  • Mfr Part # 221594
  • Parts Town # REZ221594
  • Quantity0

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

Reznor 221607 ACS355-03U-04A7-2 VFD

Reznor
  • Mfr Part # 221607
  • Parts Town # REZ221607
  • 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 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 258497 DRAIN PAN ASSEMBLY IDF D

Reznor
  • Mfr Part # 258497
  • Parts Town # REZ258497
  • 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 260060 IDF 300 BURNER ASSEMBLY ACCESORY

Reznor
  • Mfr Part # 260060
  • Parts Town # REZ260060
  • Quantity0

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

111213