A421ABC-02 — Penn A421, Temperature Control, Electronic, 120/240 VAC, -40/212 Degree Temperature Control Range, Front Panel LCD, Nema 1 Enclosure

A421ABC-02 Penn A421 — A421ABC-02 — Penn A421, Temperature Control, Electronic, 120/240 VAC, -40/212 Degree Temperature Control Range, Front Panel LCD, Nema 1 Enclosure

The A421ABC-02 Penn A421 (manufacturer part A421ABC-02) is a genuine OEM HVAC component available at Cedars HVAC, your trusted source for heating, cooling, and refrigeration parts. We stock this HVAC component for fast nationwide shipping from our Miami warehouse, so contractors, facility managers, and homeowners can get the exact replacement they need without delay.

Product details

The Penn A421 (Johnson Controls A421ABC02) Temperature Control, Electronic, 120/240 Vac, -40/212 Degree Temperature Control Range, Front Panel LCD, Nema 1 Enclosure, Din Rail or Surface Mount, Includes Temperature Sensor with 6 1/2′ Cable, 2″ Probe.

Why buy from Cedars HVAC

• Genuine OEM HVAC parts — not aftermarket substitutes
• Contractor-friendly pricing on every HVAC component
• Fast nationwide shipping from Miami, FL
• Real HVAC expertise — call us at (305) 218-5880 if you need help confirming compatibility
• Financing available through Affirm and PayPal Pay Later

About this part

This A421ABC-02 Penn A421 is part of our Controls catalog. Contact us if you need help identifying compatible models or sourcing volume quantities. For installation guidance, always refer to the manufacturer documentation and consult a licensed HVAC technician where required.

Shipping and returns

Most A421ABC-02 Penn A421 orders ship the same or next business day from Cedars HVAC in Miami, Florida. Standard ground shipping covers the continental United States, and expedited options are available at checkout. Returns are accepted within 30 days on unopened, uninstalled parts — see our return policy for full details. International shipping is available on request; contact our team for a quote.

Frequently asked questions

Is this part new and in stock? Yes, we list only in-stock items. The A421ABC-02 Penn A421 ships from our Miami warehouse the same or next business day.

Will this HVAC component fit my equipment? Compatibility depends on the model and revision of your existing equipment. If you need help confirming fitment for the A421ABC-02 Penn A421, call us at (305) 218-5880 with your unit model number and we will confirm before you order.

Can I get a contractor or wholesale discount? Yes. Cedars HVAC offers volume pricing for licensed HVAC contractors, property managers, and resellers. Request contractor pricing or call us to set up an account.

Related categories

Explore more: Controls • Browse all HVAC parts