IWK Health Centre Women's Building Chiller Installation - IWK-2021-0175
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IWK Health Centre
Women’s Building Chiller Installation
IWK-2021-0175
Addendum No.:3
April 1, 2021
The following changes or modifications shall be made to the Tender Documents:
Questions:
1. Q: per electrical drawing (E-2) the New chiller is fed from panel in Level-1. Only we have
level-4 drawing and requesting you to provide the drawing indicating the location of panel
in Level-1?
A: Switchboard 2 feeding the Chiller is located on Level 1. See attached.
2. Q: Is the ductwork on M1 coming out of the side on building new?
A: No, it is existing. The only new ductwork required is to extend the outlet of the exhaust
fans to 84" above the walkway.
3. Q: Each tender references a tender form section 00 41 42 that is 4 pages. In all 3 packages I
have I don’t see this tender form
A: The tender form is included in the publicly available documents.
4. Q: all three packages the tender mentions cash allowance in the CCDC. It is not mentions
anywhere else we can see in the tender documents. Can you please clarify if a cash
allowance is required for any of these projects.
A: The CCDC allowance clause is a standard clause and the SGC is a standard SGC that we
don’t remove because: a) the Owner could elect to introduce an allowance by addenda or
CO; b) if there is no allowance in the tender form, it doesn’t affect anything.
5. Q: In drawing E1 under detail-4 the pipe indicated as ‘53mm PVC coated schedule 40
galvanized steel pipe, is PVC Schedule 40 conduit acceptable?
A: No. Please provide the specified Thaler product.
6. The panel which the Chiller water pump (CHWP-4) fed from is in Level-1 or in level-4?
A: The chilled water pump is to be fed from switchboard CDP DP5, also located in main electrical
room 2 on Level 1.
7. Q: on Drawing E-1 Detail 3: Can you confirm the location of the 600 /347 Volt Board that
feeds the CHW Pump 4 While on the walk through no one knew where this was located?
A: CHWP-4 is to be fed from switchboard CDP DP5 in the main electrical room #2, located on level 1.
See attached.
8. Q: on Drawing E-1 Detail 3: Can you confirm the location of the Normal Bus Board # 2 Main
electrical Room #2 Level 1 that will feed the new chiller We need to run the conduit and
install a new 800 Amp Breaker
A: Main electrical room #2 is on Level 1.
IWK-2021-0175- WOMEN'S CHILLER - ADDENDUM 3.DOCX/BD
ED: 2021-04-01 3:41:00 PM/PD: 2021-04-01 3:50:00 PM9. Q: The schedule shows 575 volts but in the written spec 2.6.8 refers to a SCCR for 380 V and
460 V.
A: Use 65 kA for 575 V.
CDP DP5 in Main Electrical Room 2:
IWK-2021-0175- WOMEN'S CHILLER - ADDENDUM 3.DOCX/BD
ED: 2021-04-01 3:41:00 PM/PD: 2021-04-01 3:50:00 PMSwitchboard 2 in Main Electrical Room 2: IWK-2021-0175- WOMEN'S CHILLER - ADDENDUM 3.DOCX/BD ED: 2021-04-01 3:41:00 PM/PD: 2021-04-01 3:50:00 PM
TO THE SPECIFICATIONS
Section 01 11 00
Sentences 1.16 Equivalents and Alternates:
Smardt Chillers will be allowed as an alternate.
Section 00 21 13
Revise Sentence 6 to read:
Any ambiguities, inconsistencies, or uncertainties in the Contract Documents which may become
apparent to Tenderers when tendering shall be advised in writing to the procurement contact at
Charles.nwachukwu@iwk.nshealth.ca, not less than five (5) working days before Tender Closing.
Tenderers will be advised simultaneously of any decisions on such matters as necessary by means
of addenda will be provided a minimum of three (3) working days prior to closing (which will be
serially numbered) and all addenda issued shall be incorporated into the Contract Documents.
23 05 16 Flexible Connections
Mason flexible connectors are acceptable.
23 05 29 Bases, Hangers and Supports
Mason spring hangers are acceptable.
23 21 14 Hydronic Specialties
1. Flofab air vents, expansion tank, air separator / strainer, and glycol feed tank are
acceptable.
2. Contractor is to provide suction diffuser at inlet to pumps. Add Sentence 2.10 Suction
Diffusers as follows:
a. Body: cast iron with flanged or grooved ductile iron connections 2.1 MPa.
b. Strainer: with built-in, disposable 1.19 mm mesh, startup strainer, low pressure drop
screen and NPS 1 blowdown connection
c. Permanent magnet particle trap
d. Full length straightening vanes
e. Pressure gauge tappings
f. Adjustable support leg
3. Contractor to provide triple duty valves at pump outlets. Add Sentence 2.11 Triply Duty
Valves as follows:
a. Center-guided non-slam drip tight check valve.
b. Positive shut-off valve.
c. Calibrated system balance valve.
d. Straight pattern as indicated.
e. Flanged or Grooved end connections.
f. Soft seat design for positive sealing.
g. Construction:
h. Body: cast iron with bronze seat.
i. Disc: bronze with EPDM seat insert.
j. Stem: stainless steel.
IWK-2021-0175- WOMEN'S CHILLER - ADDENDUM 3.DOCX/BD
ED: 2021-04-01 3:41:00 PM/PD: 2021-04-01 3:50:00 PMk. Spring: stainless steel.
l. Packing: Teflon-Graphite (Asbestos-free).
m. Gasket: asbestos-free.
n. Readout valve: brass with EPT insert, check valve and gasket.
o. Maximum operating temperature: 121ºC.
p. Maximum working pressure: 1.2 MPa.
q. Valve design shall permit repacking under full system pressure.
r. Provide complete with brass readout valves, with integral check feature, to facilitate
taking differential pressure readings across the orifice for accurate system balance.
s. Provide CV rating at 10% increments. Manufacturer shall supply the CV rating for
read-out of flow determination and system pressure drop.
t. Capacity: see schedule on drawings for performance criteria and model selections
Section 25 01 01
Refer to Sentence 2.1.1: change Siemens to Johnson Controls.
CBCL Limited
April 1, 2021
IWK-2021-0175- WOMEN'S CHILLER - ADDENDUM 3.DOCX/BD
ED: 2021-04-01 3:41:00 PM/PD: 2021-04-01 3:50:00 PMIWK Health Centre
Women’s Building Chiller Upgrade
Contract No.: IWK-2021-0175
Addendum No. 2
March 30, 2021
The tender closing date is being extended by this addendum.
The following changes or modifications shall be made to the Tender Documents:
Refer to Specification Section 00 21 13 – Information to Tenderers, revise item 2. to read:
2. Tenders shall be submitted exclusively by email to
Charles.nwachukwu@iwk.nshealth.ca up until 3:00 pm, AST, on Friday April 9, 2021,
hereinafter referred to as the Tender Closing. Subject heading of email to read “IWK-
2021-0175- TENDER SUBMISSION.” The time stamp of the email as received by
Charles.nwachukwu@iwk.nshealth.ca will be used to determine if the submission was
received in time – not the time the emailed by the sender. Late submissions will not be
accepted.
Refer to Specification Section 00 21 13 – Information to Tenderers, revise item 6. to read:
Any ambiguities, inconsistencies, or uncertainties in the Contract Documents which may
become apparent to Tenderers when tendering shall be advised in writing to the
procurement contact at Charles.nwachukwu@iwk.nshealth.ca, not less than Five (5)
working days before Tender Closing. Tenderers will be advised simultaneously of any
decisions on such matters as necessary by means of addenda will be provided a
minimum of three (3) working days prior to closing (which will be serially numbered)
and all addenda issued shall be incorporated into the Contract Documents.IWK Health Centre
Women’s Building Chiller Installation
IWK-2021-0175
Addendum No.:1
March 26, 2021
The following changes or modifications shall be made to the Tender Documents:
Questions:
1. Q: per electrical drawing(E-2) the New chiller is fed from panel in Level-1. Only we have
level-4 drawing and requesting you to provide the drawing indicating the location of panel
in Level-1? AND
Q: The panel which the Chiller water pump (CHWP-4) fed from is in Level-1 or in level-4?
A: see sketch attached to this addendum.
2. Q: Confirm who is supplying the pump and the chiller?
A: IWK is supplying the pump, to be installed by the contractor. The contractor is to supply
and install the chiller.
NOTES:
1. There are several active construction sites around the IWK. Two that are close to this one
include the new emergency waiting room at the Link Building, and the new DCW Service at
the Children’s Building, both are on the south side of the building. Contractor is to
coordinate with the project managers of those sites for all overhead work.
TO THE SPECIFICATIONS
01 11 00 Summary of Work and General Instructions
Refer to Paragraph 1.2 Program of Works and Schedules
Add Sentence 7:
Contractor is to provide plan to IWK and Transport Canada for crane position to lift chiller into
place. Form attached to this addendum is to be filled in and submitted to and approved by
Transport Canada prior to lifting chiller.
Sections 23 05 23, 23 05 24, 23 05 25 - Valves
Apollo valves are acceptable for all applications.
Section 23 07 19
All outdoor chilled water piping to have aluminum sheet jacketing covering the insulation.
Section 23 21 12
200423 - ADDENDUM 1.DOCX/BD
ED: 2021-03-26 11:10:00 AM/PD: 2021-03-26 4:11:00 PMShurjoint Quick Install Couplings are acceptable. TO THE DRAWINGS Refer to M-1 Detail 2 Delete requirement to relocate existing exhaust fans. Contractor is to extend exhaust fan outlet by approximately 6’ (1.9m) to just below top of chiller. Reconfigure duct guy supports as required. CBCL Limited March 26, 2021 200423 - ADDENDUM 1.DOCX/BD ED: 2021-03-26 11:10:00 AM/PD: 2021-03-26 4:11:00 PM
IWK Women's Building - Level 1
Electrical Rooms
Main Electrical Room #1
Main Electrical Room #2Transport Canada number
AERONAUTICAL ASSESSMENT FORM Applicant number
for obstacle notice and assessment
Owner (company name)
City Province/Territory Postal code (A1A 1A1)
Telephone number (999-999-9999) Email Address
Applicant (company name)
City Province/State Postal code (A1A 1A1)
Telephone number (999-999-9999) Email Address
Geographic Coordinates NAD83 NAD27 WGS84 N Latitude deg min sec
For extensive structures submit geographical coordinates separately (e.g.
windturbines, transmission lines, building corners). W Longitude deg min sec
HEIGHTS Feet Metres Structure alone Structure with an addition
▲ ▲ ▲
A Ground Elevation (AMSL)
B
B Height of an addition to a structure ▼
C C
C Total structure height including B (AGL)
Overall height (A plus C) (AMSL) ▼ ▼
A A
Is the location on lands affected by Airport Zoning Regulations (AZRs)? Yes No
Where the object is on lands affected by AZRs, a legal survey attesting conformance is required.
Nearest Aerodrome Have you contacted the aerodrome?
Yes No
Description of Project (or attached)
Notice of Duration
New Structure Change to existing structure Permanent Temporary
Proposed Construction Date: From (yyyy-mm-dd): To (yyyy-mm-dd):
Applicant Name Telephone (999-999-9999) Date (yyyy-mm-dd)
TRANSPORT CANADA ASSESSMENT (Transport Canada use only)
Marking and lighting required (as per Standard 621)
Night Protection Day Protection Temporary Lighting No protection required
Completion of this form does not constitute authorization for construction nor replace other approvals or permits.
Transport Canada Civil Aviation Inspector Name Date (yyyy-mm-dd)
Note 1: This assessment expires 18 months from the date of assessment unless extended, revised, or terminated by the issuing office.
Note 2: If there is a change to the intended installation, a new submittal is required.
26-0427E (1812-09)
Page 1 of 2INSTRUCTIONS FOR COMPLETING FORM
Submittal: An Aeronautical Assessment Form (AAF) is submitted, If requested by Transport Canada or if there is intent for installation of the following types of
construction or alteration, including any appurtenance of more than 12m in height:
(a) of an overall height that exceeds 90 m AGL at the site;
(b) of a height that exceeds an airport OIS (obstacle identification surface) or OLS (obstacle limitation surface) as specified in Aerodrome Standards and
Recommended Practices - TP312;
(c) for aerodromes (including airports), of a height that exceeds an imaginary surface extending outward and upward at a slope of 2%, from the nearest point
of the nearest runway for a horizontal distance of 4500 m and thereafter exceeds a 90m height out to 6km;
(d) for water aerodromes, as (c) except a slope of 4% with the start of the imaginary surface taken as the GPS location published in the Canada Water
Aerodromes Supplement (CWAS);
(e) for a heliport, of a height that exceeds an imaginary surface extending outward and upward at a slope of 4%, from the nearest point of the nearest
landing and takeoff area, for a horizontal distance of 2250 m and thereafter exceeds a 90 m height out to 6 km;
(f) for catenaries and similar crossings (e.g. bridges), of a height such that any portion of the object exceeds 60 m AGL above the crossed river or valley
bottom; or
(g) on lands affected by an Airport Zoning Regulation (AZR) a legal land survey is required with the submittal proving conformance to the AZR.
Completed applications are to be forwarded to the applicable Transport Canada Regional office listed in Standard 621, Appendix A.
Nav Canada: A separate submittal is made to NAV CANADA. Refer NAV CANADA Land Use Program website http://www.navcanada.ca/EN/products-and-
services/Pages/land-use-program.aspx
Note: Transport Canada and NAV CANADA Land Use are notified, if the proposed construction does not take place.
Geographic Coordinates: Provide GPS coordinates [in degrees, minutes and seconds] of the object. For extensive objects (e.g. windfarms), provide a separate
listing of GPS coordinates for each element of the object (e.g. each windturbine). For buildings, provide coordinates for each corner, and coordinates of the
dominant structure on the roof.
Heights: Provide height of the ground elevation Above Mean Sea Level (AMSL), the total structure height Above Ground Level (AGL) and the combined overall
height AMSL. For extensive obstacles composed of several objects, provide a separate listing of heights corresponding to GPS coordinates.
Description of Project:
(a) Indicate the type of structure. (e.g. antenna, crane, building, power line, landfill, water tank, wind farm, moored balloon, kite, catenary/cable crossing, etc.)
(b) For catenaries [e.g. electrical power transmission line crossings], include a drawing of the configuration of the wires and the supporting structures with
their heights. Indicate the placement of marking/lighting [if used] on the wires.
(c) For existing structures, explain the reason for notifying Transport Canada (e.g. corrections, request for new assessment, etc.).
(d) If the object is on lands affected by Airport Zoning Regulations (AZRs), provide a legal land survey indicating conformance to AZR surfaces.
(e) For a wind farm, include a spreadsheet with individual turbine identification numbers [ID], geographic coordinates [in minutes, degrees and seconds],
ground elevation AMSL and the overall height of the object AGL. Identify those windturbines which will have lighting.
(f) Indicate what obstacle marking, lighting and monitoring will be applied. It is the responsibility of the owner to apply the appropriate lighting/marking/
monitoring in accordance with Standard 621.
Nearest Aerodrome: Identify the nearest aerodrome. Certified / registered land aerodromes/heliports are contained in the Canada Flight Supplement (CFS) and
certified / registered water aerodromes in the Canada Water Aerodrome Supplement (CWAS); both available directly from NAV CANADA.
This form does not constitute authority for construction. Nor does this form replace any approvals, permits or assessments required by NAV CANADA, Industry
Canada, other Federal Government departments, Provincial or Municipal landuse authorities or any other agency from which approval/assessment is required.
26-0427E (1812-09)
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