health boost isnt working

i dont know why, but im trying to summon a zombie with health boost so he wont die, but he will die anyway.
/summon Zombie 282 56 -1715 {Equipment:[{},{},{},{},

{id:"slime",damage:0}

],NoAI:1,Silent:1,Fire:"0",CustomName:"Test Dummy",HealF:2000,ActiveEffects:[

{Id:10,Amplifier:100,Duration:655200,ShowParticles:0b}

,

{Id:21,Amplifier:100,Duration:655200,ShowParticles:0b}

]}