Siemens Combustion QRA4M.U Scanner 319847-401 the Carrier HK02ZB059 is calibrated

the Carrier HK02ZB059 is calibrated to handle the pressures associated with modern refrigerant types found in newer Carrier and Bryant models

the blade rotates to the left

this unit eliminates the mechanical failure points found in traditional float-style controls

this Slimline Series controller handles complex HVAC configurations

Patching a cracked AC drain pan is often a temporary fix that leads to repeat service calls once the sealant fails under thermal expansion

Siemens Combustion QRA4M.U Scanner 319847-401 the Carrier HK02ZB059 is calibratedThe Siemens Combustion QRA4M. U is a high sensitivity UV flame scanner engineered for the rigorous supervision of gas or oil flames and ignition spark proving in intermittent burner operations. As a veteran grade flame detector, this sensor utilizes a specialized UV sensitive cell with two electrodes designed to ignite upon detecting radiation within the 190 to 270 nm spectral range. This ignition triggers the necessary current in the flame detector