Lennox 24W49 Pressure Switch WC - 2-Stage 0.70/1.05

The Lennox 24W49 is a 2-stage pressure switch designed for use in gas furnace systems. This OEM component monitors air pressure in the furnace venting system to ensure safe operation and proper combustion.

Key Specifications:

• Manufacturer Part Number: 101021-04
• Set Point Low: 0.70 inches water column (WC)
• Set Point High: 1.05 inches water column (WC)
• Contact Rating: 5 Amp Resistive at 24 VAC
• Honeywell Equivalent: BA20210

This pressure switch verifies adequate draft pressure before allowing the furnace to ignite and continue operation. It detects changes in pressure and signals the system to adjust as needed, maintaining safe and efficient operation. The 2-stage design allows for different pressure settings to accommodate varying furnace operating modes.

Compatible Models: G61MP-36B-071-07, G61MP-36B-071-09, G61MPV-36C-090-09, G61MPV-36C-090-10, G61MPV-36C-090-11, G61MPV-36C-090-12, G61MPVT-60C-090-01, G61MPVT-60C-090-02, G61MPVT-60C-090-03