SCOPE OF WORK REPLACE HVAC LDC.docx

SCOPE OF WORK

REPLACE HVAC SYSTEMS, MISCELLANEOUS BUILDINGS

LAND DOMINANCE CENTER, FORT STEWART, GA

1. Description of Work: Provide all plant, materials, labor, equipment and perform all operations required to remove and replace the existing HVAC Systems (condensers, air handlers and natural gas furnaces) with new within 9 Buildings (9105, 9111, 9120, 9121, 9122, 9123, 9124, 9125 and 10324); replace the existing deteriorated wooden plenum box with new insulated metal plenum box (10324 Only); install drywall on existing wood joints ceiling and exterior wood wall build-up and vertical rear wall within the Mechanical Room (10324 Only); provide and install mini-split system and new LED interior lighting (9310 Only) and associated supporting items of the heating/cooling systems. The is no ACM materials to be encountered during subject construction. Work shall include but not be limited to the following:

a. Demolition Work: (Building No. 10324) – Reference Provided Drawings

(1) Remove the associated existing ductwork (supply and return air ductwork), as needed to accomplish removal of the existing air handlers and natural gas furnaces AND to access rear wall to accomplish framing and construction of 5/8” Type “X” drywall on the rear wall of the Mechanical Room of subject building. Existing ductwork removed, may be reused and re-insulated with new 3” foil back ductwrap (with the exception of the flexible supply transition collar at the top of the supply ductwork, which shall be replaced with new, matching the existing and sized to fit the new equipment).

(2) Remove the existing air handlers, natural gas furnaces, condenser, pump-down units and prepare for disposal.

(3) Remove and dispose of existing line-sets, refrigeration insulation and condensate drain lines and provide new with new equipment.

(4) Shut-off Natural Gas, purge lines and disconnect from existing furnace units. Existing black iron natural gas piping may be reused, up to gas valve cut-off at each unit. New flex shall be provided from cut-off to each new furnace unit.

(5) Remove the existing electrical disconnects and conductors (that power outside condensers) and replace with new disconnects (similar to the existing, new liquid line flex and conductors. Size conductors to comply with manufacturer’s recommendation for new heat pump units.

(6) Remove the existing deteriorated wooden plenum box (supporting the two units and return air supply) and replace with new aluminum plenum box.

(7) Remove the existing incandescent light fixture within the Mechanical Room and replace with new LED 4’ weatherproof fixture, connected to the existing light circuit and switching.

(8) Remove the existing thermostat located within the Mechanical Room and replace with new. Replace the low-voltage control wiring to units and liquid flex and replace with new, of the same size.

b. Demolition Work: (Building 9105)

(1) Remove the existing air handlers, natural gas furnaces, condensers on 2 Each 5 Ton Units and 1 Each 3 ½ Ton Unit within subject building.

(2) Remove and dispose of existing line-sets and refrigeration piping insulation on all three units. Existing condensate piping may remain and be reused.

(3) New natural gas cut-off valve and new flex shall be provided to each of the three furnace systems from valve to unit.

(4) Reuse the two existing aquastats and the one existing thermostat.

(5) Reuse existing furnace vents.

(6) Existing electrical disconnects to remain.

c. Demolition Work: (Building 9111)

(1) Remove the two existing air handlers, natural gas furnaces and condensate pump on 2 Each 5 Ton Units within subject building.

(2) Remove and dispose of existing line-sets and refrigeration piping insulation on both units.

(3) New natural gas cut-off valve and new flex shall be provided to each of the two furnace systems from valve to unit.

(4) Reuse the two existing thermostats.

(5) Reuse existing furnace vents.

(6) Existing electrical disconnects to remain.

d. Demolition Work: (Buildings 9120, 9121, 9122, 9123, 9124 & 9125 – Each Building)

(1) Remove the two existing air handlers, natural gas furnaces and condensate pump on 2 Each 5 Ton Units within subject buildings – Each Building.

(2) Remove and dispose of existing line-sets and refrigeration piping insulation on both units – each building.

(3) New natural gas cut-off valve and new flex shall be provided to each of the two furnace systems from valve to unit – each building.

(4) Reuse the two existing thermostats/sensors – each building.

(5) Reuse existing furnace vents – each building.

(6) Existing electrical disconnects to remain – each building.

e. Demolition Work: (Building 9310) – Reference Provided Drawings.

(1) Remove existing light fixtures, electrical boxes and exposed romex wiring.

(2) Remove existing lighting 2 gang switch, light switches and install blank cover over box. New switch box, switches and faceplates to be installed in location indicated on drawings.

f. New Work: (Building No. 10324) – Reference Provided Drawings

(1) Provide and install two each new 5 Ton condenser units, air-handling units and natural gas furnaces to replace the existing units serving subject building. Provide new units with pre-charged freon.

(2) Provide and install new line-sets, supports, unicellular insulation for new refrigeration equipment. Supports provided shall be over-sized schedule 40 PVC, secured to supports, to eliminate insulation compression. Insulation exposed to UV (or installed on exterior) shall be protected with a Type II coating (to eliminate UV deterioration). Unicellular insulation shall have 1” wall thickness.

(3) Provide and install new flexible natural gas lines from the existing unit gas valve to the furnace connection. The contractor shall confirm the sizing of the existing gas regulator (to each new furnace unit) and re-size if necessary to comply with manufacturer’s recommendations.

(4) Provide and install 16 gauge metal stud framing for the rear wall of the mechanical room (installed as 16” o.c. or as near as possible), to support new drywall installation. Frame as necessary the existing rafter, above the vertical rear wall, to support the new metal frames wall (at the top) and rest the new wall on the bottom, flush with the existing treated wood nailer. Allow framing to support the re-installation of the ductwork and passage thereof thru the newly constructed framing.

(5) Provide and install new 5/8” Type X drywall to the mechanical room ceiling, vertical wood wall above the CMU construction (from treated wood nailer to underside of the rafter) and to the newly constructed new wall on the rear of the mechanical room. Gypsum installation shall comply with Gypsum Drywall Handbook. Finish shall have all joints taped and mudded with two applications and left unpainted. Items on the existing wood surface of the rafters and vertical wood walls shall be relocated to the new gypsum surface. Penetrations thru the new drywall surface shall be sealed with safeing insulation or flame resistant foam.

(6) Provide and install new dryers and sight glasses on the new unit installation adjacent to the condenser units.

(7) Install new support for exterior gas line (left side of mechanical room on exterior) and support the existing natural gas line. All existing black iron natural gas piping shall be reused.

(8) Provide and install new 3” thick foil wrap insulation over the existing (and reused) ductwork. Insulation shall be installed per SMACNA requirements with joints stapled and seams taped. The ductwork and/or insulation shall be sealed to the new plenum box and new air handlers, to achieve an air-tight installation.

(9) Provide and install new flexible ductwork connection collar between air-handlers and the existing transition supply ductwork (top of twinned units).

(10) Provide and install new schedule 40 PVC condensate drain piping to support the two new air-handlers. New condensate piping shall be routed similar to the existing condensate drain piping and supported.

(11) Provide and install/reseal the existing thru-wall sleeve penetrations with expansion foam following installation of new lines.

(12) Provide and construct new insulated aluminum plenum box under the new units, of the size shown on the drawings, with attachments as indicated and sealed to eliminate air infiltration. Field welding of the aluminum frame will be necessary to complete the installation. .080” thick, mill finished aluminum shall be used in the construction of the top and front of the new plenum box, with cut edges filed to achieve and smooth finish and edges. Supports within the aluminum plenum box may vary slightly, depending on the new unit sizes, and to achieve adequate support of the individual units. Fabricator shall consult the mechanical sub-contractor for exact placement of supports, prior to welding and cut-out sizes that match the new units being installed.

(13) Provide and install new electrical disconnects, liquid flex and conductors (from disconnect to new condenser units). New disconnects shall be similar to the existing in size and type. New conductors shall comply with manufacturer’s recommendations for the new units. Liquid flex shall incorporate all fittings and connections and be installed in a neat/professional manner.

(14) Provide and install new GFIC outlets with clear protective cover and in weatherproof cast boxes. One GFIC outlet shall be installed in locations indicated on the plans for serving of the exterior units. (Typical 2 each).

(15) Provide and install new 4” LED Weatherproof light fixture on the CMU header above the double door (in same location as the existing incandescent fixture). New fixture shall incorporate the existing circuit feed and existing switching.

(16) Provide and install new thermostat in the location of the existing thermostat and connected to the existing interior temperature room sensor.

(17) Provide and install new return air filters and outside air filters within building and mechanical room with same size as existing.

(18) Reprogram the existing Fire Alarm Control Panel to interface with relocated or new devices. Coordinate with 911 Center for proper operation of panel and Fire Department for final systems check/inspection.

g. New Work: (Building No. 9105)

(1) Provide and install two each new 5 Ton condensers and one each 3 ½” ton condenser, air-handling units and natural gas furnaces to replace the existing units serving subject building. Provide new units with pre-charged freon.

(2) Provide and install new line-sets, support, and unicellular insulation for new refrigeration equipment. Supports provided shall be over-sized schedule 40 PVC, secured to supports, to eliminate insulation compression. Insulation exposed to UV (or installed on exterior) shall be protected with a Type II coating (to eliminate UV deterioration). Unicellular insulation shall have 1” wall thickness.

(3) Provide and install new flexible natural gas lines from the existing unit gas valve to the furnace connection. The contractor shall confirm the sizing of the existing gas regulator (to each new furnace unit) and re-size if necessary to comply with manufacturer’s recommendations.

(4) Provide and install new sight glasses, filter dryers, thermostat wiring, and refrigerant charge for proper operation of new units.

(5) Reconnect and reuse the existing furnace vents to the newly installed units. Plenum boxes to remain and be reused. Seal new units to top of existing plenum box.

(6) Seal thru-wall pipe sleeve with expansion foam on all units.

(7) Reuse existing condensate drain piping.

(8) Replace existing return air AC filters with new of the same size as existing.

(9) Reuse and reconnect existing aquastats (for five ton units) and existing Honeywell thermostat for the new 3 ½ Ton Unit.

h. New Work: (Building No. 9111)

(1) Provide and install two each new 5 Ton condensers, air-handling units and natural gas furnaces to replace the existing units serving subject building. Provide new units with pre-charged freon.

(2) Provide and install new line-sets, support, and unicellular insulation for new refrigeration equipment. Supports provided shall be over-sized schedule 40 PVC, secured to supports, to eliminate insulation compression. Insulation exposed to UV (or installed on exterior) shall be protected with a Type II coating (to eliminate UV deterioration). Unicellular insulation shall have 1” wall thickness.

(3) Provide and install new flexible natural gas lines from the existing unit gas valve to the furnace connection. The contractor shall confirm the sizing of the existing gas regulator (to each new furnace unit) and re-size if necessary to comply with manufacturer’s recommendations.

(4) Provide and install new sight glasses, filter dryers, thermostat wiring, and refrigerant charge for proper operation of new units.

(5) Reconnect and reuse the existing furnace vents to the newly installed units. Plenum boxes to remain and be reused. Seal new units to top of existing plenum box.

(6) Seal thru-wall pipe sleeve with expansion foam on all units.

(7) Reuse existing condensate drain piping.

(8) Provide and install new condensate pump for both units (currently one pump serves both units).

(9) Replace existing return air AC filters with new of the same size as existing.

(10) Reuse and reconnect existing thermostats.

i. New Work: (Buildings 9120, 9121, 9122, 9123, 9124 & 9125 – Each Building)

(1) Provide and install two each new 5 Ton condensers, air-handling units and natural gas furnaces to replace the existing units serving subject building. Provide new units with pre-charged freon. (each building)

(2) Provide and install new line-sets, support, and unicellular insulation for new refrigeration equipment. Supports provided shall be over-sized schedule 40 PVC, secured to supports, to eliminate insulation compression. Insulation exposed to UV (or installed on exterior) shall be protected with a Type II coating (to eliminate UV deterioration). Unicellular insulation shall have 1” wall thickness. (each building)

(3) Provide and install new flexible natural gas lines from the existing unit gas valve to the furnace connection. The contractor shall confirm the sizing of the existing gas regulator (to each new furnace unit) and re-size if necessary to comply with manufacturer’s recommendations. (each building)

(4) Provide and install new sight glasses, filter dryers, thermostat wiring, and refrigerant charge for proper operation of new units. (each building)

(5) Reconnect and reuse the existing furnace vents to the newly installed units. Plenum boxes to remain and be reused. Seal new units to top of existing plenum box. (each building)

(6) Seal thru-wall pipe sleeve with expansion foam on all units. (each building)

(7) Reuse existing condensate drain piping. (each building)

(8) Replace existing return air AC filters with new of the same size as existing. (each building)

(9) Reuse and reconnect existing thermostats/sensors. (each building)

j. New Work: (Building No. 9310) Reference Provided Drawings

(1) Provide and install one each mini-split unit condenser with air handler (24,000 BTUH) on rear wall of building (mount air handler on plywood area provided – at a height to bottom of air-handler of 7’-6” AFF). Provide units complete with line-sets, unicellular insulation and condensate drain piping. Suggested source Friedrick (Model Number FPHFW24A3B & FPHMR24A3A)

(2) Provide and install exterior rack for exterior inverter on rear wall at approx. 2’-0” above existing grade. Bolt rack to exterior of building in location shown on drawings.

(3) Provide and install electrical lateral to new unit and install NEMA 3R disconnect on exterior from existing interior 100 amp panel.

(4) Provide and install an aluminum cover from inverter up and into back of air handler (for protection of condensate drain and line sets/insulation).

(5) Provide and install GFIC on exterior adjacent to inverter with cast box and clear plastic protective cover, for servicing.

(6) Provide and install 6 each 8’ LED weatherproof fixtures, within EMT and conductors with compression connectors, in location indicated on the drawings.

(7) Provide surface mounted gang box with switches and cover plate, in location shown on drawings for operation of new lights and existing exterior fire light.

(8) Power to be derived from the existing 100 AMP electrical panel within the building.

2. Execution of Work: The contractor shall coordinate the performance of all work 5 working days in advance. The contractor shall be responsible for protection of adjacent surfaces and areas not to receive work. The contractor may only work on a maximum of three buildings concurrently. All work under this project shall be complete within 75 calendar days after the proceed notification. The contractor will be responsible for providing and furnishing all lifts, scaffolding, elevated platforms, ladders, etc., needed to perform the work and access all areas of the project. The contractor shall be responsible for the protection of the building contents from water damage (due to rainfall) during the performance of this work. Any damage to government property (as a result of this project) shall be repaired or items replaced by the contractor, at no cost to the government.

3. Disposal of Materials: The contractor shall be responsible for disposal of all materials off of government property (unless noted below for return to the government).

4. Items to be Returned to the Government: The following items of this work shall be returned to the government upon completion of the work:

9122, 9123, 9124 & 9125.

Items returned to the government shall be coordinated with the Project Manager and delivered to the government (by contractors’ truck/means). Items shall be protected from damage (when delivered) with existing openings sealed (with formed/fitted sheet metal, fitted the openings and screwed to the housing, holes taped and/or filled with plugs, pumped down and otherwise protected if stored on the exterior), from rainfall damage.

Items not shown above shall become the property of the contractor and disposed of off government property.

5. Coordination of On-Site Work: The contractor shall provide to the POC a progress schedule for approval. Subject progress schedule shall show the various work trades incorporated within the work, their staging and completion dates.

6. Clean-up: The contractor shall keep worksite clear of debris and/or material during the work and shall accomplish clean-up of the worksite at the end of each day. Materials removed or demolished shall not be allowed to accumulate on the job-site. Any items damaged (by the contractor) during performance of the work shall be restored to original condition by the contractor and at no cost to the government.

7. Standard of Workmanship: The contractor shall perform all work in accordance with roofing industry standards, manufacturers’ recommendations and International Building Code.

a. Heating and Ventilation Equipment, Mini-Split Systems and Associated Piping: The contractor shall provide and install two new each 5 Ton HVAC Systems within the Mechanical Room of subject buildings (Buildings 9105, 9111, 9120, 9121, 9122, 9123, 9124, 9125 & 10324), one 3 ½” Ton HVAC (Building 9105), one 24,000 BTUH Mini-split System/lights (Building 9310) with miscellaneous accessories. 5 Ton Units shall be 14 SEER or higher with air-handlers and 80% AFUE natural gas furnaces. Mini-Split Systems shall have a SEER Rating of 22 or higher. Units shall be complete and operational with all ductwork reconnected/re-insulated, electrical, line-sets, interfaced with the existing fire alarm system and controls (Building 10324) as indicated on drawings. Subject equipment (air handlers) will be housed within Mechanical Rooms indicated on drawings. The condenser units will be positioned adjacent to the mechanical rooms and located on the existing concrete equipment slabs as indicated. Units shall operate and be charged with R-454A Refrigerant or R-410A for Mini-Split Units (Carrier or Grand-Aire or approved equal – Friedrich for Mini-split Unit). Air-Handlers shall be positioned on a new aluminum insulated plenum box (for Building 10324 and on existing plenum boxes for the remaining buildings). The existing ductwork (supply and return) shall be reused and re-insulated with 3” foil back insulation, stapled, taped and sealed to the new aluminum plenum box as well as the existing (remaining) insulation (for Building 10324). Ductwork connections to new units and/or reconnections shall be screwed, taped and covered with mastic, prior to reinsulating. Repair and/or retape existing ductwork to new units to create a positive seal of the air distribution system. The contractor shall provide a new flexible duct connector at the supply duct transition (for Building No. 10324). Outside Condensing Units shall be positioned as near as possible to the location of the existing outside units. The installation of the outside units shall be symmetrical placed to achieve a neat installation and shall incorporate a minimum number of elbows/fittings and securely strapped to the concrete pad with unistruit and oversized Schedule 40 PVC sleeves (to eliminate compression of insulation). Outside air filters shall be changed and replaced following new unit installation (on Building 10324), as well as inside return air conditioner filters, on all remaining buildings, to include Building 10324. The contractor shall provide and install new refrigerant tubing, insulation, filter dryers, sight glasses and accessories as necessary as indicated and required by the drawings and this work scope. New disconnects, thermostat and condensate piping shall be provided for Building no. 10324, on all other buildings disconnects, thermostats and condensate drains shall be reused (except for 9310 that require new disconnect and condensate drains). Condensation drain line (3/4” dia. Sch. 40 PVC w/trap at unit) shall be piped and installed with slope to drain units and as indicated on drawings. All interior piping shall be configured in such a manner to allow for maintenance and routine servicing of the units/components (without disassembly/re-wiring of units). The new refrigerant piping shall extend from inside to outside condensing unit and shall include unicellular insulation with exterior coated with Type II coating on armaflex that is exposed (to protect against UV deterioration). Insulation shall be continuous thru supports and penetrations, 1” exterior wall thickness. The existing thru wall sleeves shall be re-insulated/sealed with expansion foam after the new piping installation. Hangers/pipe supports shall be incorporated (as needed) within the mechanical room to support refrigerant tubing and condensate drain piping. Piping shall not rest on suspended ceiling or wood truss members that would allow insulation to be compressed. Unicellular Insulation shall have sections glued and secured with adhesive recommended by the insulation manufacturer. The refrigerant piping shall include liquid line driers, sight glasses, and piping supports for supporting piping. All piping installation shall follow refrigerant techniques and trade practices and be installed neatly to achieve as acceptable appearance. Refer to manufacturer’s design manual for refrigerant piping size, details and equipment installation. The natural gas regulator and associated piping for the natural gas furnace shall be sized to accommodate the furnaces and as recommended by the manufacturer. Natural gas piping shall be reused with new flexible gas line connection from the gas cut off to the furnace. Thermostat wiring shall be run in emt on interior and with ½” liquid flex on the exterior. New thermostat wiring and sealtite shall be installed to all units. Equipment shall be positioned to allow for future servicing of equipment and components. Refrigeration tubing shall be hard drawn and marked ACR. All penetrations thru exterior wall shall be sleeved (with Sch 40 PVC) and sealed with expansion foam (outside of sleeve shall be sealed with silicone sealant. The contractor shall adequately support piping and tubing with straps and unistruits. Mini-Split Units shall be Friedrich (or approved equal with a SEER Rating of 22 or higher), 208/230V, 24,000 BTUH and 2500W heating). Exterior Inverter Rach shall be bolted with lag bolts to the exterior of the building and installed at a height of 2’-0” above existing grade. An aluminum cover shall be installed over inverter line-sets to house line-sets, electrical and condensate drains and secured to the building. Suggested source for Mini-Split Condenser is Model FPHMR24A3A and for Mini-Split Air-handler Model FPHFW24A3B - Friedrich. The contractor shall submit for approval of the government all HVAC equipment to be incorporated (Condensers/Air Handlers/Furnaces/Mini-Split and supporting electrical disconnects/devices) prior to ordering of materials. (S)

b. Programmable Thermostat (Building No. 10324): The contractor shall provide and install a seven-day programmable thermostat, within Mechanical Room, in the location indicated on the drawings and connected to the existing interior room sensor. Thermostats shall be similar to Venstar Model 2900 (or compatible with the heat pump system and have similar capabilities as the one above). Thermostat wiring shall be run in the existing interior EMT raceway and in sealtite flexible conduit on the exterior with new thermostat wiring to the new units. Thermostats shall be programmed (with set-points) as directed and programmed as directed by the LDC POC.

c. Disconnects (Building No. 10324): Provide and Install new electrical disconnects to replace the existing (Typical 2 each). Replacement shall incorporate new conductor from the disconnect to the new heat pump unit, sized per the NEC and as recommended by the heat pump manufacturer. New Sealtite liquid flex shall be provided from the disconnect to the new heat pump units, complete with all connectors and fittings. The new disconnects shall be installed in the same location as existing ones and of the same type/style/ampacity.

d. Aluminum Insulated Plenum Box (Building No. 10324): Provide and install a new aluminum insulted plenum box within the Mechanical Room of subject facility. The framing and supports of the aluminum box shall be of angle aluminum 2” x 2” x 1/8” and aluminum flat stock of 2” x 1/8”. See drawings for details and sizes. Field welding of connections shall be required with joints mitered and welded and attached to CMU and concrete floor with tapcon fasteners (1/4” x 1 ¼”). The top and front of the new plenum box shall be constructed of .080” thick mill finished aluminum, attached to the aluminum frame with self-tapping screws. Cut-outs within the top of the aluminum box shall interface with the physical sizes of the new equipment and the existing return air ductwork. Support locations may vary slightly with the physical unit sizes and final positioning of the ne units on the plenum box. The inside of the top and front aluminum box shall be covered with 1” ductliner, applied with a spray adhesive (recommended by SMACNA and as used in the industry to secure insulation material to metal). A full bead of silicone caulk shall be applied on top of the aluminum angle supports and between the aluminum angle and CMU/Concrete, prior to installation of the aluminum top and front, to achieve an air-tight installation. Ductwork and Furnace Units shall be sealed to the aluminum plenum box with foil back tape. See drawings for details and sizes.

e. Drywall (Building no. 10324): Provide and install 5/8”, Type “X” drywall to the ceilings and vertical wood portion of the Mechanical Room Walls (on three sides – approx. 2’-10” high) and construct and install 5/8” Type X drywall on the rear wall of the Mechanical Room. Framing (with 16 gauge metal studs, installed at approx. 16” o.c.) will be required from the underside of the wood rafters (joist chord) to the top of the existing nailer. Ductwork (both supply and return air) will require removal/reinstallation/re-insulation in order to access the rear area to be framed. Framing shall provide opening to re-route the ductwork once the drywall material has been installed. The ductwork will then be reinstalled and re-insulated with 3” foil back duct insulation. Items attached to the existing wood framing (ceiling and/or walls) shall be reattached and moved to the new drywall surface. Finish shall be with tape and mastic, two coats, and sanding between and left unpainted.

f. Furnace Vents: Provide and install new PVC Schedule 40 Furnace vents (complete with all transitions and roof cap/flashing. Two vent assemblies shall be provided with the existing furnace vent removed and deck and shingles replaced with like materials. Flash roof penetrations as recommended by the manufacturer. See drawing detail.

g. LED Lighting (Building 9310 & 10324): Provide and install new LED Vapor Tight Fixtures within the interior of Building 9310 (8’ fixture) and above the double door to the Mechanical Room of 10324 (4’ fixture). The fixture in 10324 shall be retrofitted to the existing lighting circuit and EMT conduit that currently exist. The fixtures within 9310 shall be installed as new along with the EMT circuit and conductors to be installed (see plans). Vapor Tight fixtures shall be fully gasketed with polycarbonate housing & lens with ten polycarbonate latches (for 8’ fixtures & six for 4’ fixtures), high impact resistant housing, 3558 lumens with 4000K color temperature, multi-voltage, 33 watt, light grey with 5 year warranty. Suggested source Lithonia XVML L96 3500LM Multi Volt 40K 80 CRI. Switches installed and provided shall be 20AMP, brown on color.

8. Safety: All work shall be accomplished in strict compliance with OSHA Safety Standards. The contractor shall incorporate the use of safety in the use of all ladders, scaffolds and lifts to include workers using lifts being tied-off with full body harnesses during work execution.

9. Superintendency by the Contractor: Contractor shall provide an onsite Superintendent during progress and until the final certificate has been executed by the Owner or Architect. The Superintendent must be a competent superintendent and any necessary assistants, must all be satisfactory to the Owner or Architect. The superintendent shall not be changed except with the consent of the Owner or Architect unless the superintendent proves to be unsatisfactory to the Contractor and ceases to be in his employ. The superintendent shall represent the Contractor in his absence, and all directions given to the superintendent shall be binding as if given to the Contractor.

10. Supervision by the Contractor: The Contractor shall supervise and direct the Work, using his best skill and attention and he shall be solely responsible for all construction means methods, techniques and sequences.

11. Standard of Quality/Workmanship: Work shall be accomplished to industry standards, SMACNA Standards, National Electrical Code, International Building Code, National Plumbing Code and by skilled tradesmen.

12. Work Hours: The contractor shall execute subject project between the hours of 7:30 a.m.and 4:00 p.m. each weekly work day (Monday thru Friday) excluding state recognized holidays.

13. Warranty: The contractor shall provide the customer a 1-year warranty for materials and workmanship at the acceptance of the work. New HVAC Systems shall carry a 5-year warranty on compressors.

14. Point of Contact: The GGTC Point-of-Contact for the above project is Mr. Michael Hall, phone number (678) 569-9267.

15. Drawings: Eight (8) sheets of drawings (including the cover) accompany this project for Building 10324, one drawing accompany this project for Building 9310. The contractor is responsible for verification of all conditions and measurements prior to submission of his bid for this project.