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Home My WebLink About11-224MAY 24, 2011 11 -224 RESOLUTION (CARRIED 6 -0 LOST LAID OVER WITHDRAWN ) PURPOSE: APPROVAL OF CHANGE ORDER NO. 2, FAITH TECHNOLOGIES FOR DDC REPAIRS /REPLACEMENTS AS PART OF ENERGY EFFICIENCY AND CONSERVATION BLOCK GRANT PROGRAM ( +$12,724.00) INITIATED BY: PURCHASING DIVISION BE IT RESOLVED by the Common Council of the City of Oshkosh that the following Change Order, a copy of which is attached, is hereby approved: FAITH TECHNOLOGIES 2662 American Drive Appleton, WI 54912 Net Increase to contract: $12,724.00 PURPOSE: See attached Change Order. BE IT FURTHER RESOLVED that money for this purpose is hereby appropriated from: Acct. No. 203 - 1099 - 7214 -00000 — Building Improvements - EECBG Project CITY HALL 215 Church Avenue P.O. Box 1130 Oshkosh, Wisconsin 549903 -13 -113130 City of Oshkosh — QfHKQIH TO: Honorable Mayor and Members of the Common Council FR: Jon G. Urben, General Services Director DT: May 13, 2011 RE: Approve Change Order #2, Faith Technologies for DDC repairs /replacements as part of Energy Efficiency and Conservation Block Grant program ( +$12,724). BACKGROUND On November 9, 2010 Council awarded Faith Technologies a contract to install DDC (direct digital control) retrofits at various municipal buildings as part of energy saving opportunities identified by our energy partner McKinstry in accordance with Energy Efficiency and Conservation Block Grant ( EECBG) guidelines. As the DDC projects have been implemented McKinstry has identified recommended repairs to the original DDC contract. ANALYSIS McKinstry has recommended repairs to various DDC related equipment to three buildings including City Hall ( +$6,468), Safety Building ( +$1,870) and the Oshkosh Seniors Center ( +$4,386). The net difference is an addition of $12,724 to Faith Technologies' original contract. McKinstry has concluded these changes will replace defective or leaking HVAC equipment that will allow our systems to be more efficient and reduce our energy usage. FISCAL IMPACT This change order of $12,724 would alter Faith Technologies original DDC contract of $102,964 to $115,688. Contingency dollars for this change order are available in the EECBG Building Improvements Fund (203- 1099 - 7214- 00000). With these changes there will be a balance of approximately $57,000 remaining for water conservation upgrades. RECOMMENDATION Purchasing is requesting Council approval of Change Order 42 to increase the contract with Faith Technologies for additional DDC repairs for the EECBG DDC projects in the amount of $12,724. Respectfully Submitted, i Jon G. Urben General Services Director Approved: Mark A. Rohloff City Manager 0 lLSC'7'RlCAL CO/VlRA6TOR May 13, 2011 Rich Pulvermacher McKinstry IT'S ABOUT CONFIDENCE. YOURS. Proposed Change Order / Additional Work Authorization for the City of Oshkosh DDC Project City of Oshkosh — City Hall Building — Recommended repairs The followine items were found that should be corrected: 1) There is fin tube radiation that runs the perimeter of the 1" floor. It is currently controlled from a pneumatic receiver controller located in Room 137. It seems to be that the fin tube overheats which causes the VAV boxes to call for cooling. Recommend adding the hot water pump, hot water supply sensor, pump status and new control valve to the DDC system. This hot water supply temperature to the fin tube will be reset based upon the outside air temperature. 2) The following rooms have the thermostats located in the wrong rooms (we believe due to remodeling throughout the years) and should be relocated to the correct locations: a. VAV 1 -6 b. VAV 2 -1 c. VAV 3 -1 d. VAV 3 -2 3) The following rooms have diaphragms leaking on their VAV box damper actuators and should have the diaphragms replaced. a. VAV 1 -30 b. VAV 3 -8 4) VAV 2 -2 should have the thermostat relocated. It is currently behind a refrigerator which gives the thermostat a false reading. 5) VAV 4 -9 and VAV 4 -10 share a thermostat. The existing thermostat is located in VAV 4 -10 room. There should be a thermostat added in VAV 4 -9 room. 6) The following rooms have defective pneumatic thermostats and should be replaced. a. VAV 4 -2 b. VAV 3 -9 7) There is an existing flow switch mounted on the chilled water system that is not wired into the chiller to shut down in case of a water flow failure. We will wire this in to the chiller assuming that the flow switch is still in working order. This work can be done for a cost of $6,468.00 The above price includes: • All wiring, programming and graphic modifications. • Pneumatic parts and tubing as needed for repairs listed above. • Installation labor. • Engineering changes to as built drawings. The above price excludes: • Draining and filling of the hot water system if it is found that the isolation valves to not hold for change out of the hot water fin tube radiation valve. This would be identified to the owner and the draining /filling of the system would be done on a T &M basis. • Any asbestos removal (if required). • Any other mechanical /control repairs or parts replacement. • The above price is also based upon repair diaphragms still being available for item #3. City of Oshkosh — Public Safety Building — Recommended repairs Replacement of leaking 3 way control valve for the hot water coil on ASU -1. We would recommend replacing this with an electronic valve instead of spending any money on repairing this existing valve since it is 33 years old. This valve would be controlled from the DDC system currently controlling this unit. This price includes getting necessary new wires from control panel to the hot water valve and programming. Proposal #2 can be done for a cost of $1,870.00 (One Thousand Eight Hundred Seventy Dollars) The above price excludes: 1) Draining and filling of the hot water system if it is found that the isolation valves do not hold for change out of ASU -1 valve. This would be identified to the owner and the draining /filling of the system would be done on a T &M basis. IT'S ABOUT CONFIDENCE. YOURS. lLPCTRlCAL CONTNA�.:TOR 2) Any asbestos removal (if required). 3) Any other mechanical /control repairs or parts replacement. City of Oshkosh — Senior Center South — Recommended repairs The following items were found that should be corrected: 1) Furnace #6 two - position outside air damper actuator is defective and needs replacement. 2) Furnace #7 two - position outside air damper actuator is defective and needs replacement. 3) Furnace #5 needs to have a redundant damper that was installed in the outside air duct removed /patched and then a new actuator installed on the existing operable damper. 4) Furnace #5, #6, and #7 outside air damper actuators are currently wired to open if just one of the furnace fans is running. These should be re -wired so the damper only opens when its respective fan is running. 5) The ductwork and a/c coil box on furnace #6 and #7 have been walked on throughout the years and is bent and leaking badly. Ductwork need to be straightened as much as possible and then re- sealed. 6) Most of the side -wall venting for the furnace penetrations do not have any caulk sealing the pipes or the existing is in bad shape. All of these should be re- caulked. 7) Furnace #3 needs to have a redundant damper that was installed in the outside air duct removed /patched and then a new actuator installed on the existing operable damper. 8) Furnace #3 thermostat is located on an outside wall and should be moved to an interior wall. Outside air temperature is influencing the temperature at the thermostat. • This work can be done for a cost of $4,386 The above price excludes: Any other mechanical /control repairs or parts replacement. Please note: The furnaces that need new damper actuators on the outside air intakes had the dampers closed. This results in no outside air being put into that space for ventilation purposes. All of the furnaces (with exception to #4) are 1993 models and are 18 years old. These units are getting real close to the end of their normal service life. All of the condensing units have pressure controls to allow these units to run in cold weather outside. This is very inefficient since outside air could be used at these times for free cooling. With plenty of room in the attic the owner may want to investigate the possibility of installing (1) air handling unit with a hot water VAV system when it comes to time for a system replacement or upgrade. Total Cost of Recommended Repairs $12,724 (Twelve thousand Seven hundred and Twenty Four dollars) Regards, Tim BeverS, LEED ® AP Construction Manager Energy Control & Design Office: (920) 739 -6885 (ext. 210) Fax: (920) 739 -0734 tbevers@energvcontroldesign.com www.energycontroldesign.com Cytvj Vanwm6own Project Manager Faith Technologies, Inc. Office 920 -225 -6604 Cell 920- 460 -1301 greg. vanevenhoven @faithtechnologies.com IT'S ABOUT CONFIDENCE. YOURS. 2662 AMERICAN DRIVE • P.O. BOX 627 • APPLETON, WI 54912 -0627 • FAITHTECHNOLOGIES.COM