supply of roof mounted ac package unit complete conforming to rdso specification no. elps / spec / ac / 03 ( rev.2 ) , amendment no.2 or latest with control panel complete conforming to rdso specification no. elps / spec / ac / 04 ( rev.3 ) with amendment no.1 with r-407c refrigerant. icf approved makes of 1 ) amit engineers, 2 ) daulat ram engineering services 3 ) ess ess kay engineering 4 ) intec corporation 5 ) sidwal 6 ) stesalit 7 ) prag polymers 8 ) subros limited-noida are only acceptable. solid state temperature controller to have provision of two temperature setting as per rdso modification sheet no. rdso / pe / ms / ac / 0082-2020 ( rev.0 ) . icf approved makes of 1 ) a.paul software systems 2 ) analog electronics 3 ) sidwal 4. ) amit are only acceptable. [ warranty period: 30 months after the date of delivery ]