Supply and Installation and Testing and Commissioning Of VRF Type Inverter AC System

Supply & Installation & Testing & Commissioning Of VRF Type Inverter AC System

(I) Part-A (High Side) Inverter technology based 18 hp VRF type Air-cooled duct-able split Air-conditioning system's outdoor units of capacity 14.4 TR each equipped with at least two nos. DC inverter scroll compressor, i heat exchangers, fan and drive motors and starters with overload protection for the same.

(II) VRF duct-able type Indoor unit with individual controller for cooling application equipped with liquid line filter, expansion valve, cooling coil, air filters, blowers and drive motors and starters with overload protection for the same. (a) The Indoor unit of Cooling capacity of 8.0 TR each

(b) The indoor unit of Cooling capacity of 4.0 TR each

(III) Refnut (Y) joint ODU- ODU

Refnut (Y) joint IDU- IDU

Part-B (Low Side) (i) Two length duly insulated copper piping of suitable size to interconnect the indoor and outdoor units

(ii) MS epoxy coated base frame & VI pads for installation of outdoor unit

(iii) UPVC suitable drain' water piping insulated with 19 mm thickness of Nitrile rubber insulation

(iv) Ducting, Grills, Diffusers, dampers, insulation, canvas, stands etc (a) Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal ducting(sheet may be make of Tata/ Sail/ Jindal/ Ispat) complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers and supports as per the requirements at the site locations, needed duct are as bellow: 0.63 mm thick sheet duct

0.80 mm thick sheet duct

1.00 mm thick sheet duct

(b) Supply and fixing of powder coated extruded aluminum grills with volume control dampers

(b1)supply and fixing of powders coated extruded aluminum grills without V.C.

(c) Supply, fixing testing commissioning of supply air diffuser of powder coated aluminum with aluminum volume control dampers with anti smudge ring and removable core.

(d) Supply, fixing testing commissioning of Return air diffuser of powder coated aluminum without volume control dampers with anti smudge ring and removable core.

(e) supply and fixing of acoustic lining of duct with open cell nitrile rubber densely applied by adhesive confirming to standard specification as below: Thickness of 6mm

Thickness of 9mm

(f) Supply and fixing of external thermal insulation on supply air duct with closed cell crossed link polyethylene foam of 13 mm thickness and with factory laminated Al PE foil

(g) Supply and fixing of fire retardant canvas connection

(h) Supply and fixing of channel support for copper piping

(v) Supply, fixing, testing and commissioning of main electrical panel with suitable incomer and outgoing with indicated switch, push button and MCBs, starters and overload protectors for each motor of fan, blower and compressors etc. Complete in all respects.

(vi) Power and control wiring (a) supply and laying of suitable power cable with end connection : 4 core x 10 Sq.mm

4 core x 16 Sq.mm

(b) Supply and laying control cum transmission shielded wiring between ODU to IDU of copper 3core x 1.5 sq.mm with PVC conduit with earthing

(c) Installation, testing, commissioning and other miscellaneous items i.e. refrigerant for topping up in piping and other works left to install the Indoor & outdoor roof AC system

(d) Supply, fixing, testing of Air curtain for door length upto 2 meter along with switches and other required controls.