This document is a user manual for the PHBEK PCB preheater kit, which is suitable for PCBs with a size of 36x28cm. The kit includes the following components: thermocouple temperature measurement line 2, high temperature resistant polyimide film tape 1 roll, manual 1, PCB bracket 1, PHBE preheater host 1, controller 1, power cord 1, RJ45 cable 1.