i have bought an honeywell pro-4000 tsat i am wanting to change over it has an janitrol hpt-18-60 right now the wiring on the janitrol is Y,G,R,O, W2,E,C THE ONE ON THE NEW ONE IS E,AUX,Y,G,O,L,R,B,C THE WIRING ON THE JANITROL IS Y,YELLOW,G GREEN,R RED, O ORANGE,W2 BROWN,E WHITE, C BLUE AND A BLACK WIRE NOT HOOK TO NOTHING.THE ONLY OTHER THING THE NEW ONE SAY IS L TERMINAL(HEAT PUMP RESET. L TERMINAL IS POWERED CONTINUOSLY WHEN TERMOSTAT IS SET TO EM HEAT.I HAVE HAD THIS UNIT FOR 7 YEARS NEVER ONCE HAVE I HAD TO TURN IT ON TOO EM HEAT.