Home / Honeywell / Honeywell Building Management Systems (BMS) / SDC7-21WM 1/2 Stage Heating OTC Controller

Available on request

Honeywell – SDC7-21WM 1/2 Stage Heating OTC Controller

MPN: SDC7-21WM · Brand: Honeywell

Price on request

Discontinued by Honeywell — we can still source the original SDC7-21WM (new, used or refurbished, subject to availability). Request a quote below.

Request a Quote

12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Honeywell Building Management Systems (BMS)
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the SDC7-21WM now that it is discontinued?

Yes. Honeywell has discontinued the SDC7-21WM, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.

When can SDC7-21WM be shipped?

SDC7-21WM is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up SDC7-21WM in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for SDC7-21WM and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for SDC7-21WM, subject to availability and destination.

Honeywell Heating, District Heating and Multi-Fuel OTC Controllers are microprocessor controller with fixed hardware and software. OTC Controllers provides configuration with 15 sets of parameters & remote access with App and Gateway. The OTC Controllers are used for all Heating and District Heating applications with direct heating circuit and/or mixed heating circuit, domestic hot water, boiler burner, heat exchanger valve. Honeywell Heating OTC Controllers have ½ stages burner output & 6 hardware input. Controller heating circuit consist of pump & mixing valve.

The software application can be selected, by keying in a plant type code, and can be adjusted with parameters; or use no code number and configure the application with the parameter sets only. Hardware outputs are relay outputs with a maximum contact load of 2A 250V. The standard relay outputs are for pumps and valves, and are controlled from the selected application, mixing valves need 2 output relays. The function for the additional relay outputs can be set with parameter. Controllers offers heating without time program, eco, summer, auto modes of operation. OTC Controllers offers panel mounting and wall mounting feature. Controllers have feature of various display languages Features & Benefits:

Provides configuration with 15 sets of parameters

Used for all Heating and District Heating applications

Remote access with App and Gateway

6 hardware input & 1/2 stages burner output

Heating circuit consist of pump & mixing valve

Panel & Wall mounting

IP30 Protection class

Honeywell SDC7-21WM — Honeywell Heating OTC Controllers are microprocessor controller with fixed hardware and software. Controllers provides configuration with 15 sets of parameters & remote access with App and Gateway. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.