Cross-reference your unit’s serial plate or parts manual to ensure this 7KW element matches the factory-installed specifications

it is a versatile replacement for Johnson Controls P70 and Honeywell P421 series units

allowing technicians to field-set the relief point to job-site specifications using the calibrated adjustment scale

Key Benefits Universal Compatibility: Serves as a direct OEM replacement for HN61KQ120

Honeywell 221818A Display 326058-758 Cross-reference your unit’s serial plateThe Honeywell 221818A is a 60 inch remote display extension cable specifically engineered for the 7800 SERIES relay modules. This essential accessory allows for the remote mounting of the S7800 Keyboard Display Module (KDM) up to five feet away from the main burner control, providing technicians with critical access to diagnostics and system parameters without opening the electrical cabinet. The assembly features a specialized connector cover that