HomeMy WebLinkAbout630178.tiffACCEPTING BID FOR HEM. dG AND VENTILATING MuDIFICATIOP
E. H. HORTON PLUMBING AND HEATING COMPANY:
WHEREAS, sealed bids for heating and ventilating modifications were opened
in the office of the Board of County Commissioners, Weld County, Colorado, said
bids having been called for according to law, and notice having been duly published
on January 5 and 18, 1963, and
WHEREAS, E. H. Horton Plumbing and Heating Company, 530 11th Street,
Greeley, Colorado has submitted the lowest and best bid to meet requirements set
forth in specifications prepared by Miner and Miner, Consulting Engineers Incorporated
for the aforementioned heating and ventilating modifications, time performance period
to be one hundred twenty (120) calendar days (estimate), and
WHEREAS, the Board of County Commissioners believes it to be to the best
interests of the County to accept such bid,
THEREFORE, BE IT RESOLVED, that the E. H. Horton Plumbing and Heating
Company bid be, and it is hereby accepted.
The above and foregoing resolution was, on motion duly made and seconded,
adopted by the following vote.
AYES: . %l ( L6 /
Dated: January 30, 1963
THE BOARD OF COUNTY COMMISSIONERS
WELD COUNTY, COLORADO
7/4
ce-
Minute Book 32 :Page 201
630178
COUNTY COMMISSIONERS
WELD COUNTY
GREELEY, COLORADO
HEATING AND VENTILATION MODIFICATIONS
WELD COUNTY COURTHOUSE
9TH AVENUE AND 9TH STREET
GREELEY, COLORADO
JANUARY, 1963
MINER AND MINER, CONSULTING ENGINEERS, INC.
910 27th Avenue Greeley, Colorado
INDEX TO DRAWINGS
1. 51$ -BASEMENT PLAN AID SUPPLY AIR SYSTEM
2. SUPPLY TUNNEL SYSTEM WITH RISER INDICATION
3. BASEMENT PLAN
4. FIRST FLCOR PLAN
5. SECOND FLOOR PLAN
6. THIRD FLOOR PLAN
7. ATTIC PLAN
0. PARTIAL ATTIC PLAN AND ELECTRICAL LAYOUTS
9. RISER DIAGRAMS
INDEX TO SPECIFICATIONS
INSTRUCTIONS TO BIDDERS
GENERAL CONDITIONS
GENERAL INSTRUCTIONS
CONSTRUCTION PROPOSAL
GENERAL
SCOPE
PLAN OF OPERATIONS
MATERIALS AND WORKMANSHIP
PERMITS AND FEES
OPERATION AND MAINTENANCE INSTRUCTIONS
TESTS
GUARANTEE
REMOVAL OF EXISTING EQUIPMENT
CUTTING, PATCHING, AND PAINTING
PIPING
DUCTWORK
INSULATION
EQUIPMENT
CONTROLS
ELECTRICAL
Page 1-2
Page 3-4-5
Pape 6-7
Page Q-9
Page 10
Page 11
Page 12
Page 13
Page 13
Page 14
Page 14
Page 15
Page 15
Page 16
Page 17-19
Page 20-21
Page 22
Page 23 - 26
Page 27 - 29
Page 30-31
INSTRUCTIONS TO BIDDERS
1. General Contract: The work included in these Plans and Specifications con-
sists of the Modifications to the Heating and Ventilating System, Weid County
Courthouse, Greeley, Colorado. All work will be done under the General
Contract; work to include electrical, piping, heating, cooling, ventilating,
and miscellaneous work.,
2. Proposal: in order to be entitled to consideration, the proposal must be sub-
mitted on foinns furnished by the Engineer„ All blank spaces must be filled in
with ink or typewriter.
in case of a difference between the written words and numerals, the written
words shall govern
Proposals shall be submitted to the Owner, Weld County Commissioners,
Courthouse, Greeley, Colorado, no later than 10:00 am., January 30, 1963.
It is the Bidder's responsibility to deliver the proposal at the proper time to
the proper piece,
f the bid is sent by mail, use Registered Mail. Enclose the sealed bid, ade-
quately identified, in the mailing envelope.
Bids may be modified by telegraphic communication at any time prior to the
scheduled closing time for receipt of bids, provided such telegraphic communi-
cation is received by the Owner prior to said closing time. Written confirma-
tion must be received by the Owner within two (2) days after the scheduled
closing time or no consideration shall be given to the telegraphic communica-
tion.
3. Bid Security: Each proposal must be accompanied by a certified check,
cashier's check, or bid bond acceptable to the Owner, in an amount equal
to five per cent of the proposal, payable to the Owner es a guarantee that
the Bidder, if awarded the Contract, will promptly execute such Contract
in accordance with the proposal and in conformance with the Contract Docu-
ments and will furnish good and sufficient bond for the faithful performance
of the some.
The bid security of the three lowest Bidden will be retained until the Contract
is awarded or other disposition made, but in no case longer than thirty (30)
days. All other bid securities will be returned to the Bidders within three (3)
days.
Page 1
40 Proof of Competency: Successful Bidders shall be prepared to submit such
evidence of the Bidder's competency to do the work covered by this proposal
and of the 3idderts financial responsibility as the Owner may request.
Withdrawal of Bids: Any Bidder may withdraw his bid provided written re-
quest for withdrawal is received prior to opening of bids.
6, Execution of Documents: The Bidder to whom the work is awarded will be
required to furnish throe (3) copies of the formal A.neersent with the Owner
on forms supplied by the Engineer and to furnish, at the Bidder's expense,
three (3) fully executed copies of the required Contractor's Performance
Bared, and to furnish the requisite Certification of insurance, all within
ten (10) days of the Notice of Awards
70 Time of Performance: The Bidder shall furnish in the space provided on the
proposal, his estimate of the calendar days required to complete the prefect.
Page 2
SECTION 1 - GENERAL CONDITIONS
1-1 A.I.A. GENERAL CONDITIONS:
General Conditions of the Contract, Standard Form A-2, current edition
of the American Institute of Architects, are hereby made a part of this
Specification to the sane extent as if bound herein. Copies of General
Conditions may be examined or obtained at the office of Miner and Miner,
Consulting Engineers, Inc., 910 27th Avenue, Greeley, Colorado.
MODIFICATIONS TO GENERAL CONDITIONS
1-2 DRAWINGS FURNISHED:
Article 4 of General Conditions shall be changed to read a follows:
"The Owner will furnish free of charge fifteen (15) sets of working draw-
ings and Specifications. Contractors shall pay the cost of reproduction
for all other copies of Drawings and Specifications furnished to him."
1-3 PERMITS:
Article 11 of General Conditions shall have second and third sentences
changed to read a follows: "The Contractor shall obtain and pay for all
permits, licenses, certificates, inspection and other legal fees required,
both permanent and temporary."
14 INSURANCE:
The Contractor shall furnish insurance certificates satisfactory to the
Owner as follows:
Workmen's Compensation inturaae
Automobile Liability Insurance
Contractor's Liability insurance
Contractor's Protective Liability Insumce
(If sub -contractors are used)
The Certificates shall show limits of not less than $50,000 per person and
$100,000 per accident as to Bodily Injury, and $10,000 per accident a
to Property Danage, and shall provide that the Owner shall have ten (10)
days written notice of cancellation or change in the insurance. A Canpre-
hensive Liability Certificate will be accepted in lieu of any of the above
certificates that the Comprehensive form embraces. Certificate of Insur-
ance shall be filed with the Engineer in duplicate.
Page 3
1-5 PAYROLL TAXES:
It is expressly understood that the Contractor herein is an independent
Contractor and in no sense an employee or agent of the Owner and all
payroll taxes, imposed by either Federal or State Law, on Contractor's
payroll or on the pay of his employees, shall be paid or deducted by the
Contractor, and the Owner shall have no liability whatsoever in connect-
ion therewith.
1-6 SCHEDULE OF VALUES:
The Contractor shall, pvior to first application for payment, submit to
the Engineer a schedule of values of the various parts of the work aggre-
gating the total sum of the Contract.
1-7 PAYMENT:
(See also "General Conditions".) On or about the tenth day of each
calendar month the Owner will mdce partial payment of the Contract on
the basis of a duly certified approved estimate of the work performed dur-
ing the preceding calendar month by the Contractor.
1-8 CLEANING UP:
Article 44 of the "General Conditions" shall be modified as follows:
"In addition to removal of rubbish and leaving the building broom clean,
Contractor shall clean all glass, replace any broken glass, remove stains,
spots, marks and dirt from decorated work; clean hardware, remove paint
spots and smears from all surfaces.
i-9 APPROVAL
The Engineer reserves the right to approve all equipment and building
specialties used on the work.
Where equipment is specified by name, use only that specified.
Should Contractor desire to substitute equipment for that specified by nano,
state in writing showing credit or extra involved; provide supporting data,
samples where applicable, ad/or manufacturer's certified drawings and
specifications. The basic bid, however, should be on the basis of the speci-
fied equipment.
1-10 MANDATORY GOVERNING PROVISION:
The listing herein, meaning the entire Specification, of an article, materials,
operation or method, requires that the Contractor shall provide such article,
material, operation, or method as listed, of quality or subject to qualifi-
Page 4
cation as noted, and the Contractor shall perform each operation prescribed
according to conditions stated, providing all necessary materials, labor,
equipment, and incidentals to mace a complete piece of work. Omissions
of words or phrases such as "the Contractor shall," "in conformity with, °
"shall be," "as noted on the Drawings," "according to the plans," "a,"
"cap," "the," and "all," are intentional. Omitted words or phrases shall
be supplied by inference.
1-11 COOPERATION:
The General Contractor shall c -ordinate the work with all trades and sub-
contractors so as to facilitate general progress of the work. Each trade
shall afford all other trades every reasonable opportunity for installation of
their work and for storage of their material.
1-12 INSPECTION OF SITE:
Contractors aro required to visit the site and to familiarize themselves with
existing conditions pertaining to the property. Failure to visit site will
in no way relieve the successful bidder from the necessity of furnishing
any materials or performing any work that may be required to complete
the work in accordance with Drawings and Specifications.
Page 5
SECTION 2 - GENERAL INSTRUCTIONS
2-1 SCOPE OF WORK:
The work required under this Specification includes all labor, material,
equipment, and services necessary for and reasonably incidental to all
work as shown on the Drawings, as set forth in these Contract Documents,
or as hereinafter specified.
Unless otherwise specified, the Contractor shall supply all labor, tras-
pottation, materials, apparatus, scaffolding and tools necessary for the
entire, proper and substantial completion of the work; and shall install,
maintain, and remove all equipment of the construction and other utensils
or things; shall be responsible for the safe, lawful, and proper construct—
ion maintenance and use of sane; and shall construct in the best and most
workmanlike manner everything properly incidental to the job thereto, as
shown on the plans, as stated in the Specifications, or reasonably implied
therefrom, all in accordance with the Contract Documents.
2-2 DEFINITIONS:
Owner refers to Weld County Commissioners, Weld County, Colorado;
Engineer refers to Miner and Miner, Consulting Engineers, Inc.;
General Contractor refer: to the Contractor providing the general con-
struction, electrical work, and the heating, ventilating and piping work.
2-3 MEASUREMENTS:
Before ordering any materials or doing any work, each Contractor shall
verify all measurements at the building and shall be responsible for the
correctness of same. My differences which may be found shall be sub-
mitted to the Engineer for consideration before proceeding with the work.
2-4 SUPERINTENDENT'S DUTIES:
The Superintendent in the employ of the Contractor shall have the general
conduct of the work in charge, and it shall be his duty to see that the work
is carried out not only in accordance with the Drawing aid Specifications,
but in a thorough and first-class manner in every respect.
2-5 PROTECTION OF WORK AND MATERIALS:
Provide and maintain proper protection for all finished or unfinished work
subject to injury during progress of the work. The Contractor shall be respon-
sible for and make good any damage or injury to the same. Provide and hang
temporary doors as soon as possible. Take necessary and sufficient precautions
against accidents to persons or objects during progress or work.
Page 6
2-6 CHASES, HOLES, CUTTING AND PATCHING:
Leave ail chases and holes as required by any trade, as work progresses.
Any chases or holes required shall be cut by those who have set the work
to be cut and pc id for by those who require it, except as indicated on the
Drawings. No structural members shall be cut or sleeved for pipes or con-
duits unless so indicated on the Drawings, or written permission is obtained
from the Engineer.
2-7 FORMS, SHORING, CENTERS AND SCAFFOLDING:
All forms, centering, shoring, and scaffolding shall be provided, set,
maintained, e*rd removed by the General Contractor, including any shor-
ing of banks or excavations that may be required.
2-0 SUNDRY ITEMS:
Provide and maintain all ladders, temporary stairways, and railings as
may be required to construct and superintend the work.
2-9 TEST OF MATERIALS:
All materials and equipment used in the construction of the project will be
adequately inspected and tested in accordance with accepted standards.
With the exception of concrete, visual inspection will usually suffice, but
the Engineer may call for other tests if he deems it advisable. All tests
will be at the Contractor's expense, unless otherwise specified.
2-10 WORK SCHEDULE:
Contractor shall prepare a work schedule, in graph form, showing the
number of working days scheduled for each phase of construction and number
of working days actually required to complete each phase.
2-11 GUARANTEE:
The General Contractor shall guarantee his work for a period of one (1)
year from the date of acceptance and shall leave the work in perfect order
at completion. Neither the Final Certificate of Payment nor any provision
in the Contract Documents shall relieve the Contractor of the responsibility
for negligence or faulty materials or workmanship within the extent and
period provided by law, ad upon written notice he shall remedy any
defects due thereto and pay all expenses for any dolmas to other work re-
sulting therefrom.
CONSTRUCTION PROPOSAL
FOR
HEATING AND VENTILATING MODIFICATIONS
WELD COUNTY COURTHOUSE
GREELEY, COLORADO
Weld County Commissioners
Greeley,
Co Ioraro
Gentlemen:
The undersigned Bidder, in compliance with your request for bids for the Heating
and Ventilating Modification, Yield County Courthouse, Greeley, Colorado,
hereby proposes to furnish all labor and materials and to perform all the work re—
quired for the complete and prompt execution of work described or shown in or
reasonably implied from the Contract Documents, including the Plans and Speci-
fications for said work.
The Bidder has carefully examined the Contract Documents, including the Plans
and Specifications, and has examined the site of the work, so as to make certain
of the conditions at the site and to gain a clear understanding of the work to be
done.
Receipt of addenda numbers
acknowledged.
is hereby
Base proposal: For all work hereinabove described, I (we) agree to perform all
the work in the "Base Proposal" for the sum of Sirr-v o.7e tit sus aicw
Cel&h 6uhA�- A SrYEyrh'e ($ /„I 7l5. )•
Time of Performance: I (we) agree to perform the work as herein described and
as shown on the Drawings in i g n calendar days (estimate).
Upon receipt of Notice of the Acceptance of this Bid, we will execute the formal
contract within fifteen (15) days and deliver a Surety Bond for the faithful perform—
ance of this contract.
Weld County Commissioners
Date /-30-63
SEAL: (If bid is by a Corporation)
Page 2
Respectfully submitted,
L. H .4D'itch
By W
Page 9
GENERAL
A„ This SFeGiflcaticn covers al! labor, reateriai, equipment, tools,
utilities, and services required to furnish and install the Heating
and Vent•i?rfing AAodifications for the Weld County Courthouse, as
indicereed on the Drawings, and as specified herein.
B. All standards, specifications, and codes referred to herein shall be
ccasidered a part of those Specifications.
C. The Drawings indicate the general arrangement of the mechanical
wore. Locations are approximate and shall be subject to minor modi-
fications, as directed by the Engineer, and as required by actual con-
ditions eecountered on the site.
The Contractor shall carefully examine all Drawings and shall care-
fully inspect the conditicns of the site and shall be responsible for
fittings of materials and equipment in the building without substantial
alteration. All dimensions shall be verified on the lob.
`fho Drcwin gs are schematic in nature and cue intended mainly to serve
as guides to the accomplishment of the design concept of the work.
Al! recrorrable deviation:. from the Drawings in the routing and location
of piping, ducrs,etc., that do not chaigo or alter the design concept
!I he permitted by the ;ingineer.
D, The Aiiechonical Contractor shall be re;.ponsiblc for the location of all
holes through floors, walls, and ceilings for the proper installations
of air oi:iets, grilles, registers, ductwork, piping, etc.
l:. The Contractor shall furnish shop drawings of equipment and materials
to be installed. These Drawings are to be submitted to the Engineer
for approval before work commences. The Drawings shall include:
1. Dimensioned installation layouts of all equipment to be
installed in the sub -basement and alt c,
2. Cuss, drawings, specifications, and capacities of equipment.
3. Sebernatics of control systems.
Page 10
h ccvc•r.:ci by this Specification includes, but is not limited to, the
fey .;ckv;"nt-s, gen: r l items to accomplish a complete, operating, and balanced
lbVzs:ti atin j Nkidification:
'h::. r:.i;i ' ad of the existingAirSupply Systeracs fan, drive, filters,
ens n cFct,�,'an., dampers, support;, he ` 9 , etc.
; c 7.'he rere vel of the existing Air Return System's fan, drive, dampers,
fir; 0
C. The removal of all existing cast iron radiators.
D. The renewal of the existing supply, return and exhaust grilles.
E. General repair and cleaning of the existing ductwork, dampers,
controls, piping and pipe insulation.
F. Insaall new supply and exhaust registers and diffusers and door grilles.
GC: t.ns:"oil new supply and exhaust ductwork
H. install new return air fan and drive.
do 'noon new supply air fan, pre -heat, re -heat and cooling coils, dampers,
'ik'er, fuctwork, plenums, piping systems, outside air intake, and
cen roll ,
J. install new electrical lighting and power systems.
K. install row convectors, controllers, steam and condensate piping and
pipe insulation.
1. Remove e the short masonry shafts at the sides of the vertical return air
outside air shafts and convert the existing outside air shaft to a
return a• r shaft.
M. !retail new supply zone for Room IOb, complete with new ducts, regi-
sters, ra :,ring dampers and controls to match existing controls in other
cees, +. rid door grille.
Pace 11
!IL PLAN OF OPERATIONS
A. All work shall be co-ordinated to the convenience of the Owner.
B. The existing Heating and Ventilating Systems shall not be shut down
until the weather assures that heating will not be required before the
new equipment is operable.
C. Water and electricity, within the limits of availability as determined
by the Owner, will be furnished at no cost to the Contractor.
D. The Contractor shall we oxtnrme care in cutting holes in walls, floors,
and ct?r'cyjs, and be snail use dust free methods for cutting concrete,
masonry, marble, etc.
E. The Contractor shall, at all times, keep the work areas clean and
orderly. All debris, scrap, rubble, etc., shall be immediately removed
from the work wets as they are created. No unnecessary tools, mater-
ials, or equipment will be permitted in the work areas. At the end of
each work shift, after removing debris, scrap, rubble, etc., the wok
areas shall be swept clean cad hart in a neat and orderly manner.
F. There will be no stipulated sequence of construction, except as
affected by "A" and "B" above.
G. The Contractor shall provide means of closing and locking the new out-
side air inlet during nights and week -ends to prevent unauthorized
entry into the building.
H. All new fans, coils, filters, plenums, etc., shall be "on hand" before
the existing ventilating system is taken out of service so as to assure
no delays in putting the new system into operation are caused by late
deliveries of equipment.
Page 12
IV. MATERIALS AND WORKMANSHIP
A. All materials shall be new and of the type specified and shall be in an
undamaged condition at the time of use. The Contractor shall at all
times provide protection so a to maintain all materials and equipment
free from injury or damage.
B. All labor shall be performed in the best and most workmanlike manner
by mechanics skilled in their several trades. The workmanship shall,
in all respects, be of the highest grade, and all work done according
to the bast practice of the trade.
C. All materials and products will be handled and installed in strict
accordance with their manufacturer's recommendations and published
Specifications, unless specified otherwise in the Contract documents.
D. The Contractor shall furnish and install all equipment aid materials
In accordance with the following regulations and codes (latest edition):
1. N.E.C. - National Electric Code
2. NFPA - #90A - Standard for air conditioning and ventilating
systems.
3. NBFU - National Board for Fire Underwriters.
4. Any and all applicable City and State codas and ordinances.
V. PERMITS AND FEES
The Contractor shall obtain and pay for all permits and fees pursuant to the
work under this section of the Specifications and deliver copies of sane to
the Owner.
Page 13
VI. OPERATION AND MAINTENANCE INSTRUCTIONS
AO
Three (3) copies of operation and maintenance instructions, in brochure
form, for each major item of equipment, shall be submitted to the
Engineer at job completion.
B. All equipment shall be lubricated in accordance with manufacturer's •
recommendations and serviced before final acceptance.
VII. TESTS
Upon completion of the installation, and at a time designated by the Engin-
eer, all piping shall be pressure -tested for leaks as hereinafter specified.
All piping shall be tested hydrostatically and proved tight under a gauge
pressure of not less than 100 PSIG. After the above tests have been com-
pleted, and before each system is accepted, cdpaciy and general operating
tests of the system shall be conducted by the Contractor in the presence of
the Engineer. The tests shall demonstrate the specified capacities of the
various pieces of equipment. A direct -reading velocity instrument that has
been recently tested and calibrated shall be used to show that the air flow
in the various ducts, outlets, and inlets ha been so regulated as to deliver
or remove the required number of cubic feet of air per minute at the respect-
ive supply or exhaust openings. The general operating tests shall cover a
period of not less than 12 hour for each system, and shall demonstrate that
the entire equipment is functioning in accordance with the Specifications
and to the entire satisfaction of the Engineer. The Contractor shall furnish
all instruments, test equipment, and personnel that we required for the
tests, and the Owner shall furnish the necessary water, steam, and electricity.
Page 14
VIII. GUARANTEE
All equipment to be furnished under this section of the Specifications shall
be guaranteed for a period of one year from the date of acceptance thereof,
either for beneficial use or final acceptance, whichever Is earlier, against
defective materials and warlananhip.
Upon receipt of notice from the Owner of failure of any pat of the moron -
teed equipment during the guarantee period, the affected pat or parts shar
be replaced promptly with new parts by and at the exper>we ^f +!!- Ceb.Me±e!er.
IX. REMOVAL OF EXISTING EQUIPMENT
A. The Contractor shall we extreme care in removing existing equipment,
and shall be fully responsible for the repair or replacement of any-
thing damaged by this work.
5. All equipment and materials being removed shall become the property
of the Contractor. The Contractor is expected to take the salvage
value of this equipment and material into account when preparing
his bid.
C. Piping, if in good condition, may be re -used providing the pipe is
thoroughly cleaned.
Page 15
X. CUTTING, PATCHING, AND PAINTING
A. The Contractor shall do all cutting and patching necessitated by the
work outlined herein. The patching shall moth the existing structures
and installations to the satisfaction of the Engineer.
S. All new exposed, non -galvanized steel surfaces, and new and exist-
ing unlnsulated pipe, in the outside air Melee, sub -basement and
attic shall be given a prime coat of Rust -Olean 769 Damp -Proof
Red Primer and one finish coat of Rust -Olean 183 Silver Gray. Steam
traps shall not be painted.
C. No finish painting will be required on the basement, first, second,
third floors.
Page 16
General:
1. Pipes shall be cut accurately to measurements established at the
building, and shall be worked into place without springing or
forcing. Excessive cutting or other weakening of the building
structure to facilitate piping installation will not be permitted.
Pipes shall have bun removed by reaming. Change in direction
shall be made with fittings. When pips sizes are reduced in
the direction of flow eccentric type fittings shall be used. Open
ends of pipe lines and other equipment shall be properly copped
or plugged dining installation to keep dirt or other foreign mat-
erial out of the system.
2,: Horizontal rims of pipe shall be securely supported with ade-
quate supports to prevent sagging or displacement.
3. Pipes passing through masonry construction shall be fitted with
sleeves. Each sleeve shall extend through its respective wall,
or other masonry structure and shall be cut flush with each sur-
face unless otherwise specified. The inside diameter of pipe
sleeves shall in all cases be at least one-half (1/2) inch larger
than the outside diameter of the passing pipe or pipe covering.
Sleeves in bearing walls shall be steel pipe or copper pipe.
Install stamped steel floor and ceiling plates on all pipes and
rod hangers passing through or into exposed to view floors,
ceilings, and walls.
4. The Contractor shall allow for pipe expansion in the system as
shown. Normal temperatures differentials shall not cause undue
stress on the piping.
5. The Contractor shall furnish and install all necessary steel or
malleable iron adjustable hangers, wrought or cast iron brackets
or "unistrut" or angle supports and clamps where required for
support of piping.
6. Steel pipe support or hanger spacing shall be: 8 feet maximum
on centers for 1/2 inch and 3/4 inch; 10 feet maximum on centers
for 1 inch through 4 inches.
7. All leaks in existing piping shall be repaired.
B. Pipe Connections:
1. Screwed Connections: All piping through two and one-half
(2 1/2) inches shall have screwed connections and shall have full
Page 17
threat's of trues taper, QC CUT `a gage, and shall confona to
ASA Standard B-2, In Reductions in size shall be made by using
swaged nipples or reducing fittings. Screwed bushings may be
used ONLY when and where specified on Drawings.
2, Welder Connections.. All carbon stool pipe three (3) inches
and lager, other than galvanized, shall be welded unless
otherwise specified on the Drawings. Welding may be done by
either electric ac or gas. All welding whether shop or field
shall be done by vrelders qualified according to the Standard
Qualification Procedure as published by American Welding
Society and ASA Code for Pressure Piping, The Contractor
shall be responsible for qualification of welders and that all
welding be done in accordance with ASA Code for Pressure Pip-
ing. All pipe ends shall be beveled. No backing rings shall
be used.
3. Flanged Connections: Alt bolts in flanged construction shall
be uniformly tightened with proper wrenches ONLY. No
hammering or bumping will be permitted. In tightening these
joints, care shall be taken to secure uniform pressure on the
gaskets and to avoid overstressing the bolts or dishing the flanges.
All flange bolts shall be well lubricated over the entire length
with a heavy graphite and oil mixture prior to the tighteninp
operation.
C. Pipe:
1. Up to, and including, one and one—half (1 1/2) inches shall
be black buttweld steel pipe. Pipe dope shall be ASTM A53,
Grade "A", Schedule 40.
2, Two (2) inches and larger shall be black seer less steel pipe,
ASTM A53, Grade "A", Schedule 40.
D. Fittings:
1. Screwed: 150 pounds, Standard, malleable black iron.
2. Welded: Sel odulo 40. Standard, Buttwold Grade "A". black
carbon steel,
3. Flanged: Raised face, weld neck, forged steel flanges with
"Cranite" gaskets. Flat faced flanges shall be used for mating
against iron flat faced flanges on valves and equipment. Bolts
shall be carbon steel, square head machine bolts ASTM A-107.
Nuts shall be American Standard Heavy, cold pressed, unfin—
ished hex nuts.
Page IC
Vol .1.e.;
1,, Gate Valves
a,, Up to, and including, two and one-half (2 1/2) inches
diameter: Crane No, 435r-UB.
b. Three (3) inches diameter and over: Crane No, 465:.
2, Globe Valves: Hancock 150 pounds, bronze "Flocontrol"
No., 4445 (Globe) or No. 4455 (Angle), Contractor's choice
of Globe or Angle.
3, Check Valves: Crone No, 34.
F. Specialties:
1, Strainers: Crane No, 930i.
2, Thermostatic Traps: Sterling, Inc.,, "Ster)co," Series 7. Con-
tractor's choice of angle, corner, straightway, or vertical
pattern.
3. Float and Thermostatic Traps: "Sterlco" Types 78D and 808,
4, Unions: Grinnell Fig„ 459, Fig„ 551, Fig. 552, or Fig 553.,
Contractor's choice of pattern,
G. Expansion Compensators:
1, On all straight piping runs 50 feet or aver, and where shown
on the Drawings, install Keflex Type 7Q expansion compen-
sators.
Page 19
XII. DUCTWORK
A. Ducts and Plenums:
Ductwork and plenums shown on the Drawings, specified or required
for the ventilating system shall be constructed and erected in a
first-class, workmanlike manner. Ductwork and plenum shall be
fabricated of zinc -coated iron or steel sheets. Ducts and plenums
shall be straight and smooth on the inside, with joints neatly fin-
ished. Ducts and plenums shall be securely anchored to the build-
ing in an approved manner, and shall be installed so as to be com-
pletely free from vibration under all conditions of operation.
Sheet metal ducts and plenums shall be properly braced and rein-
forced with galvanized steel angles or other structural members,
The internal ends of all slip joints shall be installed in the direction
of flow. The sheet metal ducts and stiffeners shall conform to the
recommendations of the A.S. H.R. & A.E. Guide.
Suitable braced and gasketed access doors shall be provided where
shown on the Drawings. Access doors shall be provided with multi-
ple latching devices connected by linkage to a single operator and
shall be securely hinged.
Plenums shall fit snug and air -tight to walls, floors, and ceilings.
Suitable resilient gasket, packing, or caulking materials that will
not shrink or deteriorate shall be used. Plenums shall have suit-
able resilient seals around all pipes, conduits, etc., that pass
through the plenum walls.
Provisions shall be made to leave room in the supply duct for the
future addition of cooling coils down strewn of the well water coils
on the cold deck,
All existing butterfly dampers in existing return and exhaust ducts
that are having new return and exhaust air registers installed at
their inlets shall be blocked in their full -open position, and the
systems balanced by means of the dampers in the registers.
All exposed and accessible existing ductwork shall be patched, re-
paired, or replaced to nuke them air -tight and to restore their
original cross section.
All existing zone mixing dampers in the main supply ducts and
tunnels shall be repaired or replaced as required to put them in
good working order.
Page 20
The rain supply, turnels shale have all holes pctched, including
any openings between the hot and cold deck. All temporary damp-
ers, deflectors, etc., in the vertical return air shafts shall be re-
moved and any openings to the outside shall.be plugged.
B. Flexible Connections;
Flexible connections shall be provided where shown on the Drawings.
The material used shall be a wire -reinforced glass or asbestos fabric
of suitable weave and weight, and shall be rendered practically air-
tight in an approved manner. The necessary angles, bolts, clips, or
other fastenings for securing the flexible material to the equipment
and ducts shall be furnished.
C. Dampers:
Volume dampers shall be installed where indicated on the Drawings.
Dampers shall be reinforced to prevent vibration and shall be
e equipped at both ends with nylon bearings. Dampers shall be close -
fitting, and, unless automatic in operation, shall be provided with
adjustment quadrants and locking devices mounted in at accessible
location. Dampers shall be designed to offer a minimum of resistance
to the flow of air. Motor -operated dampers shall be provided by the
control sub -contractor where indicated on the Drawings.
D. Register and Grilles:
1.• Supply Registers: Tuttle and Bailey No. 1557 and No. 647
registers with electra-plated finishes (color to be specified
by the Engineer) shall be installed in all supply openings in
the building. The Contractor shall be responsible for checking
the opening dimensions as the dimensions given on the Drawings
are only approximate for use as a general guide.
2. Return and Exhaust Registers: Tuttle and Bailey No. T117D
with electro-plated finishes (color to be specified by the
Engineer) shall be installed in all return and exhaust openings
in the building. They shall be installed with face bas hori-
zontal. The Contractor shall be responsible for checking the
opening dimensions as the dimensions given on the Drawings
are only approximate for use as a general guide.
3. Supply Diffusers: In Room 315b - Tutle and Bailey Type P3,
10 -inch diameter.
4. Door Grille; In Room l6b - Tuttle aid Bailey Type T980WF,
18" x 16" with sane finish as supply registers above.
Parrs 21
?Mt > 1 '1SULATVON:
A. Steam and Condensate Pipings
Ali stem supply piping and condensate piping, new and existing,
in courthouse and tunnel to boiler room shall be insulated with
Pittsburgh Plate Glass Fiber Pipe Insulation one (1) inch thick with
factory applied standard weight canvas jacket. All flaps shall be
neatly and securely fastened with cold water wheat paste. Fittings
shall be insulated with Baldwin-Ehret-Hill "Super Powerhouse Cement"
or Standard *9 Cement, applied in the sane thickness as the pipe cover-
ing with four (4) ounce Osnaberg canvas, adhered with cold water
wheat poste. Brush all surfaces with lagging adhesive. (No finish
painting required on this Contract.)
B. Well Water Piping:
All well water, new and existing, piping shall be insulated with
Pittsburgh Plate Glass Fiber Pipe Insulation, one-half (1/2) inch
thick with a factory applied White Flame Resistant Vapor Barrier
Jacket. The longitudinal flaps and butt joint strips shall be neatly
adhered with Tuff Bond 021 clear adhesive. Fittings shall be covered
to sane depth with Baldwin-Ehret-Hill "Super Powerhouse se" cement
and neatly covered with four (4) ounce canvas secured with cold
water wheat paste. Brush all surfaces with lagging adhesive. (No
finish painting required on this Contract.)
C. No other piping or ductwork requires insulation on this Contract.
Page 22
XIV, EQUIPMENT
A. Fans
1. Supply Fan: Buffalo Forge Company, Type "BL", Size 1200,
Double inlet, ball bearing, Arrangement 3, Class 1, 60"
Diameter wheel, flanged outlet, complete with drive, motor,
slide base, woven wire inlet guards, woven wire or expanded
metal belt drive guard, and Inspection door.
The Contractor shall install a five inch concrete pad on which
the fan shall be grouted. The pod shall be dowelled to the
existing floor on two feet centers and be reinforced with #3
ban on 12 inch centers, Anchor bolts shall be provided which
shall be grouted into the existing floor before the concrete pad
is installed. A concrete pedestal shall be provided for mon�t-
ing the motor and slide base.
The fan shall be of split or bolted construction, as required to
pass through the new outside air opening to the sub -basement.
The motor shall be 30 H.P., 1200 RPM, 208 volt, 3 PH.,
60 CV., with adjustable slide base. See Electrical Section
for further details.
The drive shall consist of four (4) No. C162 V -belts on four (4)
groove sheaves, 11.0" P.D. Driver and 30.0" P.D. Driven.
The motor base shall be located such that the same belts will
accommodate a range of motor sheave sizes from 9.6" P.D. to
13.0" P.D. The motor sheave shall be furnished with a remov-
able hub that will accommodate replacement sheaves in this
sane range of sizes. The fan rotor and driven sheave shall be
dynamically balanced while assembled as a unit.
2. Return Fan: Buffalo Forge Company, Type "BL", Size 1085,
double inlet, ball bearing, Arrangement 3, Class 1, 541"
diameter wheel, flanged outlet, complete with Buffalo Floating
Base, drive, motor, slide base, woven wire inlet guards, woven
wire or expanded metal belt drive guard and inspection door.
The Contractor shall anchor and grout the structural steel sub-
base of the fan's floating base to the concrete base in the attic
fan plenum.
The fan may be of split or bolted construction to facilitate in-
stallation at the Contractor's option.
Page 23
The motor shall be 15 H.P., 1200 RPM, 200 volt, 3 PH.,
60 CY., with adjustable slide base. See Electrical Section
for further details.
The drive shall consist of five (5) "1" Section V -belts, length
to suit fan's floating be, on five (5) groove sheaves, 6.2" P.D.
driver and 18.4" P.D. driven. The meta base shall be located
such that the sane belts will accommodate a range of motor
sheave sizes from 5.8" P.D. to 6.8" P.D. The motor sheave
shall be furnished with a removable hub that will accommodate
replacement sheaves in this some range of sizes. The fan rotor
and driven sheave shall be dynamically balanced while assembled
as a unit.
B. Coils:
1. General: Submittals for proposed substitutions for the coils
specified shall be accompanied by complete comparative calcu-
lations of capacity for typical air temperatures at 000 FPM face
velocity.
2. Pre -Feat Coils, Aerofin Type "A"Non-freeze Call, 9'-6" NTL,
24 7/0" casing width, Series 61, capper fins, solder coated.
Two (2) required.
3. Re -Heat Coils: Aerofin Flexitube, 10'-0" NTL, 24 7/0" casing
width, Series 72, copper fins, solder coated. Four (4) required.
4. Well Water Coils: Aerofin Type "R" Removable Header Water
Coil, 10'-0" NTL, 24 7/8" casing width, Series 84, four (4)
pass, copper fins, solder coated. Two (2) required.
C. Air Filter:
1. The supply air filter shall be an American Air Filter Co., Model B,
"Roll-o-Matic" No. 16-100, of the automatic type utilizing a
renewable media filtering curtain of bonded glass fiber material
in roiled form. The filter shall include the necessary quantity
of rolls of filtering media for operation of the filter, plus one
complete replacement set of rolls.
2. The filter media shall consist of glass filaments approximately
.001" in diameter, bonded together with a themno-setting plastic
into a blanket two inches thick. The density of the blanket shall
be graduated by increasing the number and decreasing the dia-
meter of the fibers from front to in of the mat to provide pro-
gressively more efficient air cleaning and to apportion the dust
load through the depth of the mat. The blanket shall be sprayed
Page 24
with a non -inflammable viscasine that will not drip in temper -
enures up to 150° F. The efficiency of the filter shall be approxi-
mately 80 to 8596 when tested by the AFK method with the face
velocity of air passing trough the filter at 500 fpm. Efficiency
shall be at least 50% an one (1) micron particles, 93% on five (5)
micron particles and 96% on ten (10) micron particles. Appr xi-
mately 65feet of filtering media shall be included in each roll.
3. The frame work for the filter shall be made up of vertical sections
of 4'-0" or 5'-O" widths to provide the sines notedabove. The
actions shall ocesskt of farmed side plates with all cross mambos
electrically welded. Tie roll of filtering media shall be placed
at the tap of each action and shell be aosweyed to roller at
the bottom of the section by an endless screen which rotates over
sprockets at the top and bottom of the frame. The bottom sprocket
shaft and the lower spool shall be driven through a ratchet wheel
by a motor directly connected to a gear reducer and a roller
chain.
4. The action of the filter shall be controlled by the following in-
struments:
a. The frequency with which the curtain moves shall be con-
trolled by both an automatic time switch and a differential
pressure switch. The time switch shall move the filter
curtain on an adjustable time cycle to change the media
every 6 to 12 weeks to assure that sufficient clean filter
area will be available in case of a sudden dust bad.
The differential pressure switch shall over -ride the time
switch tomove the curtain whenever the pressure drop
amass tin filter exceeds 0.5" W.G. The pressure gage
shall be Dwyer 11626-1.
b. A draft gage shall be provided to indicate pressure drop
across the filter. The draft gags shall be Dwyer 11020-5AF
"Magsehelic" .
c. Each section of filter shall have a Vane Switch to. indicate
through a signal light whenever the air flow to shut off
either by imposition of the filter or by the filtering media
running out. The switches shell also stop the drive
mechanism.
d. A manual switch to operate the drive motor when replacing
filter rolls shall be provided.
e. The control instruments shall be mooted on a peel to be
located outside the filter plow.
5. Chain drives shall be adequately protected with guards of ex-
panded metal or sheet metal which shall be removable for servic-
ing the drive.
Page 25
6. All external wiring shall be part of the Electrical Contract.
The filter manufacturer shall famish she electrician with
necessary wiring diagrams.
D. Conwatarss Trans, Type SW, sixes a noted an the Drawings,
loader canectsons to be Contracts?s option. Mast convection
six (6) inches, minimum, above floors when sham on the Drawings.
page 26
XV. CONTROLS
A. Ventilating System Controls:
1. Scope:
The temperature control system shall be ballealiy pneumatic
with necessary electric conponeres a described below and
shall be an extension of the existing Johnsen Servias System.
2. Minima Fresh Air:
Provide a D-251 damper operator which shall positively open
the outside air pre -heat coil face damper to admit a minimum
outside air quantity of 20,000 CFM whenever main supply fan
is running. Provide a normally open V-4510 stem valve (V-1)
on supply to pre -heat coil which shall be positively open when-
ever outside air temperature drops below 30°. Provide a 1-751
electric freeze protection thermostat downbeat' of pre -heat
coil which shall close outside air prrheat coil face damper
whenever pr -eat discharge drops below 35°.
3. Mixed Airs
Provide o V 24 solenoid air valve wised to load side of main
supply fan which shall energise a T-000 remote bulb thermostat
with an 8° averaging element vehe ever fan is operating. Wien
supply fan stops, D-251 damper opinion shall elms outside
air pro -heat coil face and by -pan deepen and exhaust air
dampen and shall open return air damper. Mixed air controller
shall modujate outside air, exhaust air, and return air dampers
to hold 50 fan discharge. When outside temporaen is between
50° and 75° the outside air and exhaust air dampen shall be
100% open, but when outside temperature exceeds 75° the out-
side air and exhast dampen shall modulate toward their closed
position through an outside air 1-800 thermostat. interlock,
pneumatically, return air fat to net only when main supply fan
is started. Provide a C-211 minimum exhaust air relay to hold
exhaust air in a minimum position whenever return air fat is
operating.
4. Hot Decla
Provide a T-901 remote bulb submater thermostat whose bulb
will be located in the hot plenum which shall modulate two
V-4510 normally open steam valves, (V-2) and (V-3), to hold
its setting. Hot deck settings stall be varied inversely with
changes in outside temperatures as served by a T-900 remote
bulb mater thermatot.
5. Wiring:
All wiring for temperature control system shall be part of the
Electrical Contract. Johnson Service Company shall furnish
*kneelers with necessary wiring diagrams to cover tempera-
ture control interlock.
6. Air Supply;
Check e existing Johnson Service air compressors to assure proper
n.
7. Thermometers:
Provide adjacent to each remote bulb thermostat a throe and
ono -half (30) inch dial remote bulb thermometer mounted for
easy reading, with suitable identification name plates.
8. Drawings:
TheControl Contractor shall submit shop drawings of equipment,
control panels and wiring diagrams to the Engineer for opproval.
Upon approval, the Control Contractor shall provide the Electri-
cal Contractor with wiring diagrams a required.
9. Equipment and Generals
All remote bulb thermostats shall have fully compensated liquid
filled capillary systems at teat eight (8) feet in length. Remote
bulb thermostats shall have mounted in all air connection, two
(2) inch, 0-30 pound air gauges. Capillary systems shall be
long enough to allow instrument mounting at easily adjustable
heights.
All automatic valves and dampers, except where otherwise noted,
shall be furnished by the control manufacturer, but shall be set
in place by the heating and sheet metal contractors, respectively.
PE and EP switches shall be mounted by the control manufacturer.
If indicated to be outside of the temperature control panel,
they whichshall be mounted adjacent to the electrical equipment with
they are associated.
The air distribution system shall be 1/4, 3/8, 1/2 inch tubing,
installed in a neat and workmanlike manner by factory trained
mechanics in the direct employ of the control manufacturer.
Pogo 28
10 Guarantee.
The control system shall ce guaranteed by the rnanvfacturer
for a period of one year from the dale of acceptance by the
Owner, During this period, the manufacturer shall furnish
all labor and material necessary to the satisfaction of the
Owner; assuming such materials and workrnanhip were necosstey
because of original defects.
B . Convector CoSro's; Sterling, Inc., "Simko No. I20 Thennotrol,"
3/4 inch size, straightway, comer or angle pattern. (Pattern shall
be Contractor's option:,)
, Page 29
XVI, ELECTRICAL
A.. Gerecjral
I n. This section of the Specifications covets the finishing aid
installation of a complete electrical system, including but
not limited to all labor;, material, equipment, tools, and
services necessay, Included shall be ail necessary labor to
remove or alter the existing electvicai system to accommodate
the new ventilating system equipmsnt.
2. Since a portion of this work is to on existing electrical system,
the Contractor shall be held responsible for visiting the court-
house to determine the nature of his work, No extras will
be allowed for work due to the result of not visiting the job
site.
3. The Drawings indicate the general arrangement and approxi-
mate location of the equipment. The Contractor shall be held
responsible for the exact fining of all equipment and materials
in the building without substantial alteration.
B. Codes and Regulations
1. The work shall fully comply with all City, County, and State
laws and ordinances, and the latest edition of the National
Electrical Code,
C. Existing facilities
1. The Contractor shall furnish now circuit breakers for the power
distribution panel and lighting panel in theses-oasement. The
breakers shall be of the sane manufacture or interchangeable
with the existing pane:board breakers.
2. The Cantraotorshall remove the electrical facilities for the
existing main supply fan in the sub -basement and the return air
fan in the attic, to accommodate the new ventilating equip-
ment and its electrical system.
D. Lighting
1. New lighting shall be installed os shown on the plan for the
sub -basement fan room.
Pert ae
E. Conduit und F'3tir s
1. All wiring shall be exposed and installed in EMT x galvanised
conduit. Rigid .:,nduit to be umei what aechaeicoi
dom,7ge may !.suit, . 11 motor connections shall be with "Seal -
tire" flexible conduit. Fittings shall be compatible with the
type of conduit and location used.
F. "Rotas and Si-1'tar s
i . All motors are specified In otter section of these Specification,
but in general shall conform to the following requirements:
a. All motors 14 HP and below hall be 115 welt, single
phase, 60 Coycles
b. All motors over 1/2 HP shall be 200 volt, 3 phase, 60
cycles.
e. All motors shall be drip proof with Clas A insulation.
d. Bearings shall be sealed ball bearings.
e. Preferred Manufacturers: Louis Allis, Westinghouse,
Reliance, General Electric, Century.,
2. Starters shall be as specified on the Drawings, but in general
shall be sized for the load ad a NEW. Type 1 enclosure, and
shall be manufactured by Allen-Bradky, or approved equal.
Pas 31
NOTICE FOR RIDS
Sealed bids will be received by
the Board of- County Commission-
ers, Weld County, Colorado, Weld
County Courthouse, Greeley Colo:
rado,.' on Wednesday, January 30,
1963 at 10:00 . a. M. o'clock for the
following, to -wit:
Weld County Courthouse
Heating and Ventilating
Modifications
'0th Avenue and 9th Street
Greele, Colorado.
Bids will be opened in the pres-
ence of all the bidders and read
aloud. Bids received after said
closing time will bereturned un_
opened. A set of Plans and Specifi-
cations may be obtained at the of-
fices of Miner and Miner, Consult-
ing Engineers, Inc. 910 27th Av-
enue, Greeley._ Colorado. A single
bid is to include heating, ventilat-
ing, plumbing, electrical work,
and miscellaneous construction: A.
bid deposit of twenty-five dollars
($2,00) will be required for each
set of Plans and Specifications.
Each bid must be submitted on
the proposal form attachedto and
made a partof the Contract Docu-
aunts.i Each proposal must- be ac-
companled by a certified check,
cashier's check, or bidbond, ac-
ceptable to the Board, in an
amount equal to at least five Per.
cent of the proposal, payable with- ,
out condition to the Board as a
guarantee that the Bidder, if
awarded the Contract within fif-
teen (1i)_ days after the hid date
will promptly execute'- such Con-
tract in accordinace with his pro.
posal and in the manner and form
required, by the. Contract Docu-
ments, and will provide GOOD
AND SUFFICIENT BOND for the
faithful performance of thework-
in an amount EQUAL TO THE -TO.
'pAL CONTRACT PRICE.
The Board reserves the right to
reject any or all bids.
Dated at Greeley, Colorado. this
3rd day of January, 1963.
THE BOAHB OF.
COUNTY COMMISSIONERS
WELD COUNTY, COLORADO
Byi- ANN SPOMEIb.
County Clerk and
Clerk To The Bard
Published' in. The Greeley Booster
January iS, and January 25. 1963.
Minute Book 32: Page 176
NOTICE FOR BIDS:
Sealed bids will be received by the Board of County Commissioners, Weld County,
Colorado, Weld County Courthouse, Greeley, Colorado, on Wednesday, January 30,
1963, at 10:00 a. m. o'clock for the following, to -wit:
Weld County Courthouse
Heating and Ventilating Modifications
9th Avenue and 9th Street
Greeley, Colorado.
Bids will be opened in the presence of all the bidders and read aloud. Bids
received after said closing time will be returned unopened. A set of Plans
and Specifications may be obtained at the offices of Miner and Miner, Consulting
Engineers, Inc., 910 27th Ave., Greeley, Colorado. A single bid is to include
heating, ventilating, plumbing, electrical work, and miscellaneous construction.
A bid deposit of twenty-five dollars ($25.00) will be required for each set of
Plans and Specifications.
Each bid must be submitted on the proposal form attached to and made a part of
the Contract Documents. Each proposal must be accompanied by a certified check,
cashier's check, or bid bond, acceptable to the Board, in an amount equal to at
least five percent of the proposal, payable without condition to the Board as a
guarantee that the Bidder, if awarded the Contract within fifteen (15) days after
the bid date, will promptly execute such Contract in accordance with his proposal
and in the manner and form required by the Contract Documents, and will provide
good and sufficient bond for the faithful performance of the work, in an amount
equal to the total Contract price. The Board reserves the right to reject any
or all bids.
Dated at Greeley, Colorado, this 3rd day of January, 1963.
THE BOARD OF COUNTY COMMISSIONERS
WELD COUNTY, COLORADO
BY: ANN SPCv1ER
COUNTY CLERK AND CLERK TO THE BOARD
The Greeley Daily Tribune
Publish January 4 and 18, 1963.
The Greeley Booster
published January 18 & 25
Hello