Anual PPM Service checklist (plan preventive maintenance  

Nice video,, you have good knowledge bro

Thanks sir..... Nice video sir..... Very helpful for beginners.... Allah aap ko kamyabi de.....

Sir chiller all seftey device pe ek video banayi..... Aur display all function pe bhi.....

Ek video chiller ke electrical wiring pe jarur batayiye.......go sir.... Mera aap iltija....Hai ki jarur meri comments ka khayal kare.....aap

thanks sir. sir ek videoe chiller k tamam perameters pr banain k pumpdown demand limit,Acc surge, variable orifice etc tamam perameters details se batain

Sir fridge ka pms

Sir im traine havac