installation of ac machines and fire detection system at deic contai sdh in nandigram hd sitc of ac machines. 2nd call- 1 sitc of 1.0 tr capacity rated cooling capacity 18000 btu / hr. split type air conditioner machines suitable for operating at rated ac power supply-230v-1ph-50 hz, 2 / 3 star of refrigerent r-32 /r-410a. the ac machine (both idu & odu) should be installed with suitableiron bracket, fixing materials.(make -mitsubishi electric / o-general/mitsubishi heavy duty)[nursing/nutri,ecg,langauge,psycho & laboratory] 2 sitc of 1.5 tr capacity rated cooling capacity 18000 btu / hr. split type air conditioner machines suitable for operating at rated ac power supply-230v-1ph-50 hz, 2 / 3 star of refrigerent r-32 /r-410a. the ac machine (both idu & odu) should be installed with suitableiron bracket, fixing materials.(make -mitsubishi electric / o-general/mitsubishi heavy duty)[s.intrigration] 3 sitc of 2.0 tr capacity rated cooling capacity 18000 btu / hr. split type air conditioner machines suitable for operating at rated ac power supply-230v-1ph-50 hz, 2 / 3 star of refrigerent r-32 /r-410a. the ac machine (both idu & odu) should be installed with suitableiron bracket, fixing materials.(make -mitsubishi electric / o-general/mitsubishi heavy duty)[ early intervention therapy, vision impairment, hearing impairment, sound proff area, examination & dental ] 4 supply, installation & commissioning of hard/soft copper (0.6mm) refrigeration pipeline, with 9 mm nitrile rubber tube insulation on following sizes of suction line & liquid linecopper pipe with proper insulation tape (make-accoflex/ armacell/k-flex, complete with fittings, elbows, bends, supporting arrangement on walls (make- ryoku/rajco/mandev). 5 a)5/8 od 6 b) 1/4 od 7 c)1/2 od 8 s & f of control cabling from starter to oduand idu of ac machine a)1.1 kv gr. single core stranded pvc insulated 4 core 2.5 sq. mm.cu. wire. make- ploycab/finolex / rr kabel. 9 b) 1.1 kv gr. single core stranded pvc insulated 3 core 2.5 sq. mm.cu. wire. make- ploycab/finolex / rr cabel. 10 supply & laying drain water piping work by pvc / hdpe hard pipe of following sizes incl. fitting, accessories, bends, elbows, tees, flanges, tappings, wall sleeves, hangers, supports, anchors.make- oriplast / supreme 11 a) 19mm dia pvc 12 supplying, fabrication & fixingm.s u-channel of 6 mm thick of size (45 mm x 45 mm x 40 mm) for making platform for installation of outdoor unit of 1.0 /1.5/ 2.0 tr concealed split air conditioner at roop top of the building as per requrement (measureable as per base on platfrom size of sq.ft) 13 charges for scaffolding,carrying,lifting & shifting ofarrangement incl. lifting for outdoor & indoor units. 14 supply of single-phase timer for controlling 1 no. single-ph ac m/c(concealed split) of size 1/1.5/2 tr. consisting of the following: a) 8 way spn db-1 no.-double door(make:l&t/ simence),b) astronomical timer, 0-999hrs (make: l&t), c) dp mcb 250v/32a-1no.(make: l&t),d) 3-pole power contactor of required rating-1no.(make: l&t) ,e) db locking arrangement must be there f) push bottom on/off switch individual outer side of db (there must be bypass mechanism and indication for on/off by indicating lamp of the ac m/c unit attached to it.)(for single air conditioner machine ) 15 supply of single-phase timer for controlling 1 no. single-ph ac m/c(concealed split) of size 1.5/2 tr. consisting of the following: with 6a 2nos mcb (approve make) a) 12 way spn db-1 no.-double door(make:l&t/ simence/legrand),b) astronomical timer, 0-999hrs (make: l&t), c) dp mcb 250v/32a-1no.(make: l&t),d) 3-pole power contactor of required rating-2 no.(make: l&t) ,e) db locking arrangement must be there f) push bottom on/off switch individual outer side of db (there must be bypass mechanism and indication for on/off by indicating lamp of the ac m/c unit attached to it.)(for single phase double air conditioner machine)