TimberlineBoilersErrataAmendment4-20210514.pdf

5/17/2021 Timberline Lodge Boiler Errata Amendment #4 Page - 1/4

AMENDMENT #4 5/17/2021

1. TIMBERLINE BOILERS MAIN LODGE DRAWING ERRATA

1.01 DRAWING ED2.0

A. Hex note 1: Reference to panel “CH” Change “54 circuit panel” to “74 circuit panel, see sheet E6.0 for new panel directory”.

1.02 DRAWING E2.0

A. Hex Note 7: Revise this note, no overcurrent protective coordination study is required. This study has been done for both the Main Lodge and Day lodge. Delete reference to specification 26 05 73. Short circuit values for new panel “CH” is has been determined and is on current labels. All existing panels in both buildings have both arc-flash and short circuit labels existing.

B. Provide short circuit and arc flash labels at new panel “CH”. Existing panel “CH” has these values on current labels. Provide same data on new labels per NFPA 70E requirements.

C. Detail 2/E2.0 Boiler Emergency Shutdown Schematic, Hex note 3&4 refer to gas solenoids.

1. Change reference from “welding gas valves” to fuel oil valves.

2. Change circuit for shut down schematic from panel A-8 to panel “CH” with new 15A breaker

3. Add interlock contacts from relay R2 to shut off all three boilers B1, B2, B3. Additional contacts on relay R2 are needed. See Day lodge sheet E2.0 details 2/E2.0 for similar shut down detail including fuel oil pumps.

1.03 DRAWING E2.1

A. Hex note 2: Delete this note. No overcurrent protective coordination study is required. Panel

“WG” and “WH” have short circuit and arc- flash labels existing. Match existing panel AIC rating for any new breakers installed for any panel shown on this sheet where new breakers are required.

1.04 DRAWING E2.2

A. Hex note 1: Delete this note. No overcurrent protective coordination study is required. Panels shown on this sheet have short circuit and arc- flash label existing. Match existing panel AIC rating for any new breakers installed for any panel shown on this sheet where new breakers are required. See notes below for sheet E6.0 that changes AIC breaker ratings.

1.05 DRAWING E5.0

A. Detail 1/E5.0 Existing 1 line Diagram

1. Change panel “CH”, AIC rating for from 9441AFC to 22KAIC rating for new panel

“CH”.

2. Hex Note 1: Provide external, not integral SPD for panel “CH” per specification 26 43 13 Surge Protective Device. Provide 60A 3P breaker in panel “CH” to feed new SPD device.

1.06 DRAWING E6.0

A. Updated panel directories in XLSX format will be supplied after award for updates and as-built documentation to panels shown on this sheet, “A”, “B” “WG, and “CH” B. Panel “A” kitchen, change AIC rating from 10 KAIC to 22 KAIC C. Panel new “CH” in boiler room Change AIC rating from 10 KAIC to 22 KAIC.

D. Panel new “CH”: Add 200A 3P main breaker to panel “CH”, existing directory shows main lug only.

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E. Panel new “CH” Add 60A – 3P 60A breaker in panel to feed new external mounted SPD Surge Suppressor Device per spec 26 43 13. Connect breaker to circuits Panel CH 2, 4, 6. Mount SPD directly to side of new panel “CH”.

2. DAY LODGE DRAWING ERRATA

2.01 DRAWING E2.0

A. Hex note 2: Delete this note, short circuit analysis has been done for MCC-E-1 & E-2 motor control center. Provide AIC rating for any new device to match vales shown on existing short circuit labels on MCC-E-1 & E-1

B. Detail 2/E2.0 Boiler Emergency Shutdown Schematic detail keynotes Hex 3&4:

1. Change reference from welding gas valves in note 3 to fuel oil valves

2. Change reference from “gas line solenoid” in note 4 to “fuel oil solenoid”.

3. Change reference in schematic diagram from “gas solenoid” to “fuel oil solenoid.”

2.02 DRAWING E5.0

A. Details 1/E5.0: A revised 1 line diagram will be provide after award that shows recent panels updated for AIC and short circuit fault information.

B. Existing Day Lodge Panel Directories in XLSX format will be provide after award to update for any new or modified power panel to show as-built panel directories for motor control center MCC – East and Panel “E”.

2.03 DRAWING E6.0

A. Add sheet key note Hex 6: MCC-East AIC available fault current is 11 KAIC.

B. Add sheet key note Hex 7: Existing Panel E AIC rating is 22KAIC. Provide 22 KAIC breakers C. Panel “E” directory: This panel has been replaced, an updated panel directory in XLSX format will be provided after award to update.

D. Panel “E” directory: change AIC rating from 10 KAIC to 22 KAIC.

E. 1 Line Diagram New: Provide 22 KAIC rated sub feed devices to new boiler connection shown for BP-4A, BP-4B, BP-5A, BP-5B

3. SPECIFICATION ERRATA (APPLIES TO MAIN LODGE AND DAY LODGE)

3.01 DRAWINGS GENERAL RECORD AS-BUILT DRAWINGS (ENTIRE CONTRACT)

A. Provide a complete set of contract as-built record drawings for entire contract including all drawings in contract bid set and all shop drawings. Include drawings without changes and all drawings where changes have occurred. Provide drawings in both DWG, PDF format and hard copies as required by contract sections.

3.02 26 00 00 ELECTRICAL BASIC REQUIREMENTS

A. 3.01 E Add the following requirement “All work shall be done by electricians licensed by the state in which the work is performed.”

3.03 26 00 00A ELECTRICAL BASIC REQUIREMENTS – TESTING (NEW SPECIFICATION)

A. Add new section 26 00 00A - ELECTRICAL BASIC REQUIREMENTS – TESTING B. This new section amends 26 00 00 to add testing requirements to section 3.16 FIELD

QUALITY CONTROL Tests. This is in addition to testing required by other sections.

3.04 26 05 19 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES.

A. 3.02 FIELD QUALITY CONTROL. Testing in this sections is in addition to that in new sections 26 00 00A. Both testing specifications apply.

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3.05 26 05 26 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS

A. Add 2.04: Provide grounding bushings for all metallic conduit for panels and boxes larger than 6” x 6”. Bond each conduit thru locknut to enclosure grounding terminals. Provide plastic insulaton as part of bushing.

3.06 26 24 16 PANELBOARDS

A. 3.05 Testing: Change reference from “Reference section 26 08 05 Electrical Acceptance

Testing” to read “Reference section 26 00 00A Electrical Basic requirements – Testing” for Electrical testing requirements, in addition to other section test requirements.

B. Section 26 08 05 is not included in current bid package.

4. RFI QUESTIONS / ANSWERS (Q/A)

4.01 RFI QUESTIONS / ANSWERS

A. Q. is the Government going to charge for water and electricity use?

1. A. No the contractors will not be charged for water or Electricity use for this project.

B. Q. Is press connection of copper piping allowed?

1. A. No, all copper piping connections shall be soldered.

C. Q. Where is specification for the boiler burners?

1. A. See specification section 23 52 00 Part 2.02D and also drawing M.03, Oil Fuel Boilers schedule D. Q. How are we supposed to quantify the amount of asbestos that “may” need to be removed?

1. A. Assume all concealed piping has asbestos insulation.

E. Q. Can the Government provide a copy of the referenced Honeywell Control Drawings for review?

1. Sheet M2.4 of the Construction Set dated 11/13/2018, sheet keynotes 7, 8, 9, 10 & 11 all say to “see Honeywell Control Drawings dated 04/15/13 for wiring and other information.”

2. Sheet M6.0 keynote Hex 2 says to see Honeywell Control Drawings dated 04/15/13 for wiring and other information

3. A: The Control system diagrams for this project have been determined to be Controlled Unclassified information (CUI), for BAS / DDC control systems and network diagrams.

These drawings will not be provided as part of the bid package of drawings.

a. These control drawings for both Main Lodge an Day Lodge buildings will be provided to the contractor after award for use in this contract for new and modified controls for both buildings and for providing control system design and network security features as described in the specifications sections 23 09 00, 26 09 00, 27 00 00 and 27 00 01.

b. These control system drawings may not be as-built and do not show existing network Ethernet wiring for interconnection to the main Lodge or to the Day Lodge local area network to DDC system Ethernet based system controllers.

c. Contractor is required to field verify all control drawings and existing wiring to be modified for this project that will be part of the control system modifications, per specifications above.

d. There are approximately 25 control drawings for Timberline Lodge HVAC BAS/ DDC system and approximately 30 drawings for Timberline day lodge building HVAC BAS/DDC system.

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e. Both buildings operate under one common intertied via fiber optic cable to the Honeywell HVAC BAS/ DDC Control system which will be modified under this contract.

END OF SECTION