Kerala State Housing Board Tender

od360443/2022_2023 : DX System: Supply installation testing and commissioning of DX(direct expansion) outdoor units with scroll compressors. Air-cooled DX outdoor unit @ 43 Deg C ambient condition with one or two scroll compressors of equal capacity, air-cooled condenser coils, condenser fans with weatherproof motors, safety controls, the microprocessor-controlled starter for evaporator fans, etc. An electrical point will be provided nearest to the unit. All components shall be mounted on welded steel base frame, structural steel profiles/panels made out of galvanized sheet steel, protected with primary coat & finished with epoxy paint. Modular type outdoor units equipped with highly efficient scroll compressors, special acryl precoated heat exchanger, and low noise condenser fan. The Refrigerant shall be R - 410 A. The unit shall be supplied with all accessories as required suitable for AHU connectivity. For 2TR units, rotary or reciprocating compressors can be considered if scroll compressors are not available. for 2TR outdoor units(Sterile store-1W+1S)

od360453/2022_2023 : DX air handling units - Supply installation testing and commissioning of double skin construction draw thru type AIR HANDLING UNITS with Thermal Break Profile as per specification, each complete with pre-filter section (90% down to 10 microns), each complete with MERV-13 (99% down to 3 microns Where ever specified in schedule) DX coil of copper tube & aluminum fins construction, squirrel cage induction motor and as per the schedule of AHU in the specification, airfoil centrifugal plug fans with VFD and vibration isolators, coil size shall be selected for a maximum face velocity of 500 feet/minute and static pressure shall be as indicated. he outlet velocity shall be restricted to 8m/s. The motor selected shall be energy efficient having efficiency (Class I-IE-3) at full load ranging between 90% to 95% in accordance with a motor rating as per specification. Motor shall be suitable for 415±10% volts, 50 cycles, 3 phase AC supply. Fan motor assembly (as a whole) shall be statically and dynamically balanced to grade G 6.3 as per ISO-1940/AMCA 204-3. All units shall be complete with opposed blade volume control dampers at the outlet, return, and fresh air connections. Duct flexible connector (fireproof) shall be provided at outlets and return connection of AHU.(For details refer to AHU schedule) 2200CFM/10mm ESP/6R with MERV 13 filter,6KW heater and mixing box.(ICU)

od360461/2022_2023 : DX air handling units - Supply installation testing and commissioning of double skin construction draw thru type AIR HANDLING UNITS with Thermal Break Profile as per specification, each complete with pre-filter section (90% down to 10 microns), each complete with MERV-13 (99% down to 3 microns Where ever specified in schedule) DX coil of copper tube & aluminum fins construction, squirrel cage induction motor and as per the schedule of AHU in the specification, airfoil centrifugal plug fans with VFD and vibration isolators, coil size shall be selected for a maximum face velocity of 500 feet/minute and static pressure shall be as indicated. he outlet velocity shall be restricted to 8m/s. The motor selected shall be energy efficient having efficiency (Class I-IE-3) at full load ranging between 90% to 95% in accordance with a motor rating as per specification. Motor shall be suitable for 415±10% volts, 50 cycles, 3 phase AC supply. Fan motor assembly (as a whole) shall be statically and dynamically balanced to grade G 6.3 as per ISO-1940/AMCA 204-3. All units shall be complete with opposed blade volume control dampers at the outlet, return, and fresh air connections. Duct flexible connector (fireproof) shall be provided at outlets and return connection of AHU.(For details refer to AHU schedule) 1200CFM/10mm ESP/6R with MERV 13 filter,3KW heater and mixing box.(CSSD)

od360464/2022_2023 : DX air handling units - Supply installation testing and commissioning of double skin construction draw thru type AIR HANDLING UNITS with Thermal Break Profile as per specification, each complete with pre-filter section (90% down to 10 microns), each complete with MERV-13 (99% down to 3 microns Where ever specified in schedule) DX coil of copper tube & aluminum fins construction, squirrel cage induction motor and as per the schedule of AHU in the specification, airfoil centrifugal plug fans with VFD and vibration isolators, coil size shall be selected for a maximum face velocity of 500 feet/minute and static pressure shall be as indicated. he outlet velocity shall be restricted to 8m/s. The motor selected shall be energy efficient having efficiency (Class I-IE-3) at full load ranging between 90% to 95% in accordance with a motor rating as per specification. Motor shall be suitable for 415±10% volts, 50 cycles, 3 phase AC supply. Fan motor assembly (as a whole) shall be statically and dynamically balanced to grade G 6.3 as per ISO-1940/AMCA 204-3. All units shall be complete with opposed blade volume control dampers at the outlet, return, and fresh air connections. Duct flexible connector (fireproof) shall be provided at outlets and return connection of AHU.(For details refer to AHU schedule)800CFM/10mm ESP/6R with MERV 13 filter,3KW heater and mixing box.(Sterile store 1W+1S)

od360467/2022_2023 : Ductable split air conditioners (Inverter Type) - Supply installation testing and commissioning of factory-assembled air-cooled ceiling-suspended ductable air conditioners of below-specified capacities. The unit shall be complete with air-cooled outdoor units and ceiling-suspended indoor units with copper refrigerant piping, air-cooled condenser with scroll compressors, thermostatic expansion valves, shut-off valve drier, microprocessor controls, etc. 5.5TR inverter ducted split air conditioners

od360468/2022_2023 : Ductable split air conditioners (Inverter Type) - Supply installation testing and commissioning of factory-assembled air-cooled ceiling-suspended ductable air conditioners of below-specified capacities. The unit shall be complete with air-cooled outdoor units and ceiling-suspended indoor units with copper refrigerant piping, air-cooled condenser with scroll compressors, thermostatic expansion valves, shut-off valve drier, microprocessor controls, etc. 4TR inverter ducted split air conditioners

od360471/2022_2023 : Supply & laying of Refrigerant Copper Piping (Gas line/Liquid line) with 18G HD Copper pipes, insulated with 19mm thickness nitrile rubber tubings and joints and proper supports. The insulation shall have external protection with GC cladding or aluminum foil. All external piping shall run through covered cable trays. Ø1-1/8(28.6mm1.219mm thick)

od360472/2022_2023 : Supply & laying of Refrigerant Copper Piping (Gas line/Liquid line) with 18G HD Copper pipes, insulated with 19mm thickness nitrile rubber tubings and joints and proper supports. The insulation shall have external protection with GC cladding or aluminum foil. All external piping shall run through covered cable trays. Ø7/8(22.2mm1.219mm thick)

od360474/2022_2023 : Supply & laying of Refrigerant Copper Piping (Gas line/Liquid line) with 18G HD Copper pipes, insulated with 19mm thickness nitrile rubber tubings and joints and proper supports. The insulation shall have external protection with GC cladding or aluminum foil. All external piping shall run through covered cable trays. Ø5/8(15.9mm1.219mm thick)

od360477/2022_2023 : Supply & laying of Refrigerant Copper Piping (Gas line/Liquid line) with 18G HD Copper pipes, insulated with 19mm thickness nitrile rubber tubings and joints and proper supports. The insulation shall have external protection with GC cladding or aluminum foil. All external piping shall run through covered cable trays. Ø1/2(12.7mm1.219mm thick)

od360478/2022_2023 : Supply & laying of Refrigerant Copper Piping (Gas line/Liquid line) with 18G HD Copper pipes, insulated with 19mm thickness nitrile rubber tubings and joints and proper supports. The insulation shall have external protection with GC cladding or aluminum foil. All external piping shall run through covered cable trays. Ø3/8(9.5mm0.8mm thick)

od360480/2022_2023 : Supply & laying of Refrigerant Copper Piping (Gas line/Liquid line) with 18G HD Copper pipes, insulated with 19mm thickness nitrile rubber tubings and joints and proper supports. The insulation shall have external protection with GC cladding or aluminum foil. All external piping shall run through covered cable trays.Ø1/4(6.4mm0.8mm thick)

od360481/2022_2023 : Supply, testing, and commissioning of condensate drain UPVC piping as per BIS 4985 with necessary clamps, supports, hangers, and fitting such as bend, tees, reducers, etc. duly insulated with 9 mm thick chemically cross‐linked closed cell nitrile rubber insulation, fire retardant grade as per the drawing and relevant standards.32mm dia

od360482/2022_2023 : Supply, testing, and commissioning of condensate drain UPVC piping as per BIS 4985 with necessary clamps, supports, hangers, and fitting such as bend, tees, reducers, etc. duly insulated with 9 mm thick chemically cross‐linked closed cell nitrile rubber insulation, fire retardant grade as per the drawing and relevant standards.40mm dia

od360483/2022_2023 : Supply, testing, and commissioning of condensate drain UPVC piping as per BIS 4985 with necessary clamps, supports, hangers, and fitting such as bend, tees, reducers, etc. duly insulated with 9 mm thick chemically cross‐linked closed cell nitrile rubber insulation, fire retardant grade as per the drawing and relevant standards.50mm dia

od360484/2022_2023 : Control and power cabling from Isolators for air handling units and DX outdoor units(Power up to isolators by electrical agency) 3cx1.5Sqmm copper cable

od360485/2022_2023 : Control and power cabling from Isolators for air handling units and DX outdoor units(Power up to isolators by electrical agency) 4cx10Sqmmm copper cable

od360486/2022_2023 : Control and power cabling from Isolators for air handling units and DX outdoor units(Power up to isolators by electrical agency) 4cx16sqmm copper cable

od360487/2022_2023 : Supply installation testing and commissioning of earthing for various equipment and motors with necessary supports and accessories 8 SWG copper wire

od360488/2022_2023 : Supply installation testing and commissioning of earthing for various equipment’s and motors with necessary supports and accessories 10 SWG copper wire

Air distribution works

od360425/2022_2023 : Sheet Metal Work with Ductmate Flanges for all sizes of the duct. Fabrication as per SMACNA Standards. Galvanizing shall be Class VII – light coating of zinc, nominal 120 gm/sqm surface area, and Lock Forming Quality prime material along with mill test certificates. In addition, if deemed necessary, samples of raw material, selected at random by the owner’s site representative shall be subject to approval and tested for thickness and zinc coating at the contractor’s expense. All duct construction and installation shall be in accordance with SMACNA standards. In addition, ducts shall be factory fabricated utilizing the following machines to provide the requisite quality of ducts. All ducts shall be fabricated and installed in a workmanlike manner, conforming to relevant SMACNA codes. The Duct shall be supported with sufficient Support at regular intervals as mentioned in the technical specifications. Sheet Metal Ducting As per Specification. Pressure 250 Pa (26 G not to consider) 24 GSS TDF joints

od360427/2022_2023 : Sheet Metal Work with Ductmate Flanges for all sizes of the duct. Fabrication as per SMACNA Standards. Galvanizing shall be Class VII – light coating of zinc, nominal 120 gm/sqm surface area, and Lock Forming Quality prime material along with mill test certificates. In addition, if deemed necessary, samples of raw material, selected at random by the owner’s site representative shall be subject to approval and tested for thickness and zinc coating at the contractor’s expense. All duct construction and installation shall be in accordance with SMACNA standards. In addition, ducts shall be factory fabricated utilizing the following machines to provide the requisite quality of ducts. All ducts shall be fabricated and installed in a workmanlike manner, conforming to relevant SMACNA codes. The Duct shall be supported with sufficient Support at regular intervals as mentioned in the technical specifications. Sheet Metal Ducting As per Specification. Pressure 250 Pa (26 G not to consider) 22GSS TDF joints

od360439/2022_2023 : Supply and charging of additional refrigerant .R410A

od360450/2022_2023 : Powder coated extruded Aluminium Return air Grilles with horizontal fixed bars and end flanges complete without volume control damper

od360454/2022_2023 : Powder-coated extruded Aluminium Supply air Grilles with horizontal fixed bars and end flanges complete with volume control damper

od360456/2022_2023 : Powder-coated extruded aluminium 4-way removable core type Supply air Diffusers complete with volume control damper 225 X 225 Neck size(standard diffusers)

od360459/2022_2023 : Powder-coated extruded aluminium 4-way removable core type Supply air Diffusers complete with volume control damper 300 X 300 Neck size(standard diffusers)

od360460/2022_2023 : Powder-coated extruded aluminium 4-way removable core type Supply air Diffusers complete with volume control damper 375x375 Neck size(standard diffusers)

od360463/2022_2023 : Powder-coated extruded aluminium 4-way removable core type Supply air Diffusers complete with volume control damper 450x450 Neck size(standard diffusers)

od360465/2022_2023 : Powder-coated extruded aluminum 4-way removable core type return air Diffusers without dampers. 225x225 Neck size(standard diffusers)

od360466/2022_2023 : Powder-coated extruded aluminum 4-way removable core type return air Diffusers without dampers. 300x300 Neck size(standard diffusers)

od360469/2022_2023 : Powder-coated extruded aluminum 4-way removable core type return air Diffusers without dampers. 375x375 Neck size(standard diffusers)

od360470/2022_2023 : Powder-coated extruded aluminum 4-way removable core type return air Diffusers without dampers. 450x450 Neck size(standard diffusers) 450x450 Neck size(standard diffusers)

od360475/2022_2023 : Factory fabricated Low leakage aerofoil type Volume control dampers of 1.2mm thick Aluminium blades, 150mm depth, extended linkage rods for manual operation, channels, flanges suitable for duct mounting and with a manual operating handle. Stiffen damper blades for stability. Include a locking device to hold single-blade dampers in a fixed position without vibration & engraved marking on the position of the damper.

od360476/2022_2023 : Fire dampers for Supply/Return air duct along with fusible link and limit switch for position feedback. The dampers are to be rated for 120 minutes fire rating and the dampers shall be of the spring return type. Fire damper to be provided with TDF matching flanges on both sides with gasket. Fire dampers should be supplied with extended fire-rated extended sleeves.2no.limit switch for 2no NO/NC contactors (One for BMS & one for AHU VFD)

od360479/2022_2023 : Fusible Link and spring mechanism

INSULATION WORKS.

od360426/2022_2023 : Supply, installation and testing of thermal insulation of ducts using closed cell Nitrile Rubber insulation with recommended adhesives and sealed with self adhesive 3mm thick tape and density of material shall be 40‐60 kg/cubm. 19mm thick with aluminium foil or GC cladding.

od360430/2022_2023 : Supply, installation, and testing of thermal insulation of ducts using closed cell Nitrile Rubber insulation with recommended adhesives and sealed with self-adhesive 3mm thick tape and density of material shall be 40‐60 kg/cubm.13mm thick with aluminium foil or GC cladding

od360435/2022_2023 : Supply installation testing and commissioning of Exhaust grills with volume control dampers.150 mm x 150 mm

od360441/2022_2023 : Supply installation testing and commissioning of ceiling-mounted exhaust fans with decorative grills and flexible ducts connection. 50 CFM

od360445/2022_2023 : Supply Erection testing and Commissioning of centrifugal-type inline exhaust fans complete with all accessories including supports/hangers, electrical starters, gravity louvers, canvas connections, etc as per specifications & drawings 300 CFM duct inline fans

od360449/2022_2023 : Supply Erection testing and Commissioning of centrifugal-type inline exhaust fans complete with all accessories including supports/hangers, electrical starters, gravity louvers, canvas connections, etc as per specifications & drawings 200 CFM duct inline fans

od360452/2022_2023 : Supply Erection testing and Commissioning of centrifugal-type inline exhaust fans complete with all accessories including supports/hangers, electrical starters, gravity louvers, canvas connections, etc as per specifications & drawings 150 CFM duct inline fans

od360455/2022_2023 : Supply Erection testing and Commissioning of centrifugal type inline exhaust fans complete with all accessories including supports/hangers, electrical starters, gravity louvers, canvas connections, etc as per specifications & drawings 100 CFM duct inline fans

Additional works:

od360423/2022_2023 : Flexible ductwork of two layer aluminized polyester inner core, surrounded by 25 mm thickness of 24 Kg/M3 density fiberglass, all wrapped in a reinforced multilayer aluminum polyester outer jacket. 150MM DIA

od360429/2022_2023 : Supply and installation of under deck insulation of exposed roof with 50 mm thick-24KG/M3 density expanded poly steryne.

od360431/2022_2023 : Supply installation testing and commission of humidistat ,thermostat ,safety thermostat ,airflow switch and accessors including cabling.

od360437/2022_2023 : Supply, Installation and testing and commissioning of VFD with starter panel for floor mounted and Ceiling mounted Air handling units,.<br>1-Only HVAC application VFD shall be used.<br>2-VFD enclosure to b Included.<br>3-Bypass connection to be included.<br>4-Cabling between VFD Starter panels to unit to be included (5mtr).<br>6-VFD starter panel to be places near unit as per the site condition.<br>7-The panel shall incorporate heater contactors and controlls were ever heaters are specified.

od360440/2022_2023 : Supply installation testing and commissioning of room controllers with temperature, humidity controls.

od360444/2022_2023 : Supply installation testing and commissioning of digital differential pressure monitoring systems for OTS, Isolation room and CSSD.Controller capable of monitoring and displaying multiple rooms with individual sensors.