allen & sherriff

Allen & Sherriff Architects, Inc. 10350 Yonge Street, S200, Richmond Hill, Ontario L4C 5K9 Tel: 905-884-1117 Fax: 905-884-4970 File Ref. Project 4235-2 ________________________________________________________________________________________________________________________

MULTIPLE HVAC RENEWAL

ARCHBISHOP ROMERO-BLESSED TRINITY CEC, ST. GONZAGA CSS, ST. GREGORY CES

ADDENDUM # 1 June 3, 2019 The following additions, deletions, and amendments shall hereby become a part of the contract documents for the above mentioned project.

1. MECHANICAL ADDENDUM M-1

1. Mechanical Addendum M-1 issued by WSP Consultants, dated May 31, 2019 (15 pages). (Attached)

END OF ADDENDUM # 1

Floor 5 600 Cochrane Drive Markham, ON, Canada L3R 5K3 Tel.: +1 905 475-7270 Fax: +1 905 475-5994 wsp.com

Multiple HVAC Renewal

Archbishop Romero-Blessed Trinity CEC, St. Aloysius Gonzaga CSS, St. Gregory CES

WSP Project No. 19M-00265-00

Mechanical Addendum No. M-1

May 31, 2019

INCLUDE IN YOUR BID AMOUNT FOR THE FOLLOWING ITEMS OF ADDITION, DELETION OR CLARIFICATION. INDICATE IN THE SPACE PROVIDED ON THE BID FORM THAT YOU HAVE RECEIVED AND INCLUDED FOR THE REQUIREMENTS OF THIS ADDENDUM.

1. SPECIFICATION

1.1 SECTION 22 11 00 DOMESTIC WATER PIPING AND SPECIALTIES

1.1.1 Refer to new Section attached and forming a part of this Addendum.

1.2 SECTION 22 13 00 DRAINAGE AND VENT PIPING AND SPECIALTIES

1.2.1 Refer to new Section attached and forming a part of this Addendum.

1.3 SECTION 26 65 16 COOLING TOWER

1.3.1 Refer to revised Section attached and forming a part of this Addendum.

2. DRAWINGS

2.1 DRAWING NO.

2.1.1 Refer to revised drawing M2.1 attached and forming a part of this Addendum.

3. ATTACHMENTS

3.1 SPECIFICATION

3.1.1 Issued with and forming part of this addendum are the following:

.1 Section 22 11 00 Domestic Water Piping and Specialties

.2 Section 22 13 00 Drainage and Vent Piping and Specialties

.3 Section 26 65 16 Cooling Tower

3.1.2 Include for revisions and/or Work as specified.

3.2 DRAWINGS

3.2.1 Issued with and forming part of this addendum are the following:

.1 Drawing M2.1 Enlarged Second Floor Plan – New Work – Mechanical

3.2.2 Include for revisions and/or Work as specified.

END OF ADDENDUM

Multiple HVAC Renewal 22 11 00 Archbishop Romero-Blessed Trinity CEC DOMESTIC WATER PIPING AND SPECIALTIES St. Aloysius Gonzaga CSS, St. Gregory CES Allen & Sherriff Project No. 4235 May 31, 2019 Page 1

WSP: 19M-00265-00

1 GENERAL

1.01 SUBMITTALS

.1 Submit shop drawings/product data sheets for all products specified in Part 2 of this Section except for pipe, fittings, and chlorine.

1.02 QUALITY ASSURANCE

.1 Domestic water piping and valves are to comply with following codes, regulations and standards (as applicable):

.1 applicable local codes and regulations;

.2 ASTM F1960, Standard Specification for Cold Expansion Fittings with PEX Reinforcing Rings for Use with Cross-linked Polyethylene (PEX) Tubing;

.3 CAN/CSA B125.1, Plumbing Supply Fittings;

.4 CAN/CSA B125.3, Plumbing Fittings;

.5 CAN/CSA B137 Series, Thermoplastic Pressure Piping Compendium;

.6 CAN/ULC S102.2, Standard Method of Test for Surface Burning Characteristics of Flooring, Floor Coverings, and Miscellaneous Materials and Assemblies;

.7 CAN/ULC S101, Fire Endurance Tests of Building Construction and Materials;

.8 NSF/ANSI 14, Plastics Piping System Components and Related Materials;

.9 NSF/ANSI 61, Drinking Water System Components – Health Effects;

.10 NSF/ANSI 372, Drinking Water System Components – Lead Content.

2 PRODUCTS

2.01 PIPE, FITTINGS AND JOINTS

.1 Hard Copper - Solder Joint

.1 Type "L" hard drawn seamless copper to ASTM B88, complete with copper solder type fittings to ASME/ANSI B16.18 and soldered joints using The Canada Metal Co. Ltd. "SILVABRITE 100" or equal lead-free solder for cold water pipe, and 95% tin/ 5% Antimony or "SILVABRITE 100" solder for other services.

.2 Copper Pressure Coupled Joint

.1 Type "L" hard drawn seamless copper to ASTM B88 with Viega "ProPress with Smart Connect feature" copper fittings with EDPM seals, and pressure type crimped joints made by use of manufacturer recommended tool.


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2.02 SHUT-OFF VALVES

.1 Ball Valves

.1 Class 600, 4140 kPa (600 psi) WOG rated, lead-free, full port ball type valves, each complete with a forged brass body with solder ends, forged brass cap, blowout-proof stem, solid forged brass chrome plated ball, "Teflon" or "PTFE" seat, and a removable lever handle. Valves in insulated piping are to be complete with stem extensions.

.2 Acceptable products are:

.1 Toyo Valve Co. Fig. 5049A-LF;

.2 Milwaukee Valve Co. #UPBA485B;

.3 Kitz Corporation Code 859;

.4 Apollo Valves #77LF-200;

.5 Watts Industries (Canada) Inc. #LFFBVS-3C.

2.03 CHECK VALVES

.1 Horizontal

.1 Lead-free, Class 125, bronze, 1380 kPa (200 psi) WOG rated horizontal swing type check valves with solder ends.


.1 Toyo Valve Co. Fig. 237A-LF;

.2 Milwaukee Valve Co. #UP1509;

.3 Kitz Corporation Code 823;

.4 Apollo Valves #61LF Series.

.2 Vertical

.1 Equal to Kitz Corp. Code 826, lead-free, 1725 kPa (250 psi) WOG rated vertical lift check valve with soldering ends.

2.04 DRAIN VALVES

.1 Minimum 2070 kPa (300 psi) water rated, 20 mm (¾") dia., straight pattern full port bronze ball valves, each complete with a threaded outlet suitable for coupling connection of 20 mm (¾") dia. garden hose, and a cap and chain.


.1 Toyo Valve Co. Fig. 5046;

.2 Dahl Brothers Canada Ltd. Fig. No. 50. 430;


WSP: 19M-00265-00

.3 Kitz Corporation Code 58CC;

.4 Apollo Valves #78-104-01;

.5 Watts Industries (Canada) Inc. #B6000.

2.05 PRESSURE REDUCING VALVES

.1 For piping less than or equal to 50 mm (2") diameter, lead-free, non-corrosive, non-ferrous direct spring acting pressure reducing valves to CAN/CSA B356, each factory set at 345 kPa (50 psi) unless otherwise specified or required, each field adjustable from 175 kPa (25 psi) to 520 kPa (75 psi) and each complete with an integral inlet strainer. Acceptable products are:

.1 Apollo Valves #36HLF Series;

.2 Zurn/Wilkins #600XL Series;

.3 Watts Industries (Canada) Inc. #LF25AUB-Z3 Series;

.4 Cash-Acme EB-25 Series.

.2 For piping greater than or equal to 65 mm (2-½") diameter, lead-free, non-corrosive pilot operated pressure reducing valve to CAN/CSA B356, factory set at required pressure, field adjustable, and complete with a bronze body and trim, screwed or flanged connections, and brass body pilot valve with stainless steel seat. Acceptable products are:

.1 Singer Valve #106 PR;

.2 Zurn/Wilkins #ZW209;

.3 Watts Industries (Canada) Inc. #LFN223 Series.

2.06 SHOCK ABSORBERS

.1 Type 304 stainless steel piping shock absorbers, each complete with a nesting type bellows and a casing of sufficient displacement volume to dissipate kinetic energy generated in piping system, and each sized to suit connecting potable water pipe and equipment it is provided for.


.1 Watts Industries (Canada) Inc. "SG" Series;

.2 Jay R. Smith 5000 Series "HYDROTROL";

.3 Zurn #Z1700 "SHOKTROL";

.4 Mifab "HAMMERGUARD" WHB Series.


WSP: 19M-00265-00

2.07 WATER HAMMER ARRESTORS

.1 Piston type, sealed, pressurized water hammer arrestors suitable for either horizontal or vertical installation, each complete with a hard drawn copper body, "O"-ring piston seals, an air charge, and an inlet opening equal to diameter of pipe in which arrestor is required.


.1 Watts Industries (Canada) Inc.;

.2 Zurn #Z1705;

.3 Precision Plumbing Products Inc. #SC;

.4 Mifab MWH Series.

3 EXECUTION

3.01 DEMOLITION

.1 Refer to demolition requirements specified in Section entitled Demolition and Revision Work.

3.02 PIPING INSTALLATION REQUIREMENTS

.1 Provide required domestic water piping.

.2 Piping, unless otherwise specified, is as follows:

.1 for pipe inside building and aboveground in sizes to 100 mm (4") dia. – Type "L" hard copper with solder joints or Type "L" hard copper with pressure coupled mechanical joints.

.3 Slope piping so it can be completely drained.

.4 Provide cast brass dielectric type adapters/unions at connections between ferrous and copper pipe or equipment.

3.03 INSTALLATION OF SHUT-OFF AND CHECK VALVES

.1 Refer to Part 3 of Section entitled Basic Mechanical Materials and Methods.

.2 For shut off valves installed on solder joint copper piping up to and including 75 mm (3") diameter, provide ball type valves, and for flanged joints copper or stainless steel piping larger than 75 mm (3") diameter provide butterfly type valves.

3.04 INSTALLATION OF DRAIN VALVES

.1 Provide a drain valve at the bottom of domestic water piping risers, at other piping low points, and wherever else shown.

.2 Locate drain valves so they are easily accessible.


WSP: 19M-00265-00

3.05 INSTALLATION OF PRESSURE REDUCING VALVES

.1 Provide domestic water pressure reducing valves. Install so each valve is readily accessible. Whenever possible, provide pressure reducing valves factory pre-set to required pressures.

.2 Check and test operation, and adjust as required.

3.06 INSTALLATION OF SHOCK ABSORBERS

.1 Provide accessible shock absorbers in domestic water piping.

.2 Ensure size of each shock absorber is properly selected to suit size of domestic water pipe and equipment pipe is connected to.

3.07 INSTALLATION OF WATER HAMMER ARRESTORS

.1 Provide accessible water hammer arrestors in domestic water piping in locations as follows:

.1 in headers at groups of plumbing fixtures;

.2 at top of risers;

.3 at ends of long horizontal runs of piping;

.4 in piping connecting solenoid valves or equipment with integral solenoid valves;

.5 wherever else shown or required by Code.

.2 Install each unit in a piping tee either horizontally or vertically in the path of potential water shock in accordance with manufacturer’s instructions and details.

END OF SECTION

Multiple HVAC Renewal 22 13 00 Archbishop Romero-Blessed Trinity CEC DRAINAGE AND VENT PIPING AND SPECIALTIES St. Aloysius Gonzaga CSS, St. Gregory CES Allen & Sherriff Project No. 4235 May 31, 2019 Page 1

WSP: 19M-00265-00

1 GENERAL

1.01 SUBMITTALS

.1 Submit shop drawings/product data sheets for all products specified in this Section except pipe and fittings.

.2 Submit a copy of plumbing inspection certificate prior to application for Substantial Performance of the Work.

2 PRODUCTS

2.01 PIPE, FITTINGS AND JOINTS

.1 Copper - Solder Joint

.1 Type DWV hard temper to ASTM B306, with forged copper solder type drainage fittings and 50% lead - 50% tin solder joints.

2.02 SHUT-OFF AND CHECK VALVES

.1 Shut-off Valves

.1 Class 600, 4140 kPa (600 psi) WOG rated full port ball valves, each complete with a forged brass body, blowout-proof stem, chrome plated solid brass ball, solder or screwed ends as required, and removable lever handle.


.1 Toyo Valve Co. Fig. 5049A or Fig. 5044A;

.2 Milwaukee Valve Co. #BA-155 or #BA -125;

.3 Kitz Corporation Code 58 or Code 59;

.4 Victaulic Co. of Canada Ltd. Series 722;

.5 Apollo Valves # 77-100 or # 77-200;

.6 Watts Industries (Canada) Inc. #FBVS-3C.

.2 Check Valves

.1 Class 125, bronze, 1725 kPa (250 psi) WOG rated vertical lift check valve with solder or screwed ends as required, and, for horizontal piping, Class 125, bronze 1380 kPa (200 psi) WOG rated swing check valves with solder or screwed ends.


.1 Toyo Valve Co. Fig. 231 or Fig. 236 or Fig. 237;

.2 Milwaukee Valve Co. #1510 or #510;

.3 Kitz Corporation Code 36 or Code 22 or Code 23.

Multiple HVAC Renewal 22 13 00 Archbishop Romero-Blessed Trinity CEC DRAINAGE AND VENT PIPING AND SPECIALTIES St. Aloysius Gonzaga CSS, St. Gregory CES Allen & Sherriff Project No. 4235 May 31, 2019 Page 2

WSP: 19M-00265-00

3 EXECUTION

3.01 DEMOLITION

.1 Refer to demolition requirements specified in Section entitled Demolition and Revision Work.

3.02 DRAIN AND VENT PIPING INSTALLATION REQUIREMENTS

.1 Provide required drainage and vent piping. Pipe, unless otherwise specified, as follows:

.1 for pipe inside building and aboveground in sizes less than or equal to 65 mm (2-½") dia. – type DWV copper.

.2 Unless otherwise specified, slope horizontal drainage piping aboveground in sizes to and including 75 mm (3") dia. 25 mm (1") in 1.2 m (4'), and pipe 100 mm (4") dia. and larger 25 mm (1") in 2.4 m (8').

.3 Install and slope underground drainage piping to inverts or slopes indicated on drawings to facilitate straight and true gradients between points shown. Verify available slopes before installing pipes.

.4 Unless otherwise specified, slope horizontal branches of vent piping down to fixture or pipe to which they connect with a minimum pitch of 25 mm (1") in 1.2 m (4').

.5 Extend vent stacks up through roof generally where shown but with exact locations to suit site conditions and in any case a minimum of 3 m (10') from fresh air intakes. Terminate vent stacks a minimum of 330 mm (13") above roof (including roof parapets) in vent stack covers. Where not shown on drawings, route vent piping from source to building exterior as required in order to satisfy local governing codes and authority. Coordinate vent routing with other building services and ensure there is no architectural impact.

.6 Provide cast brass dielectric unions at connections between copper pipe and ferrous pipe or equipment.

3.03 INSTALLATION OF SHUT-OFF AND CHECK VALVES

.1 Provide a shut-off valve and a check valve in discharge piping of each drainage pump.

.2 Locate valves so they are easily accessible without the use of ladders or other such devices.

END OF SECTION

Multiple HVAC Renewal 23 65 16 Archbishop Romero-Blessed Trinity CEC COOLING TOWER St. Aloysius Gonzaga CSS, St. Gregory CES Allen & Sherriff Project No. 4235 May 31, 2019 Page 1

WSP: 19M-00265-00

1 GENERAL

1.01 SUBMITTALS

.1 Submit cooling tower shop drawings/product data sheets, complete with piping and power and control wiring schematics, accessories, rated capacities, and weights.

.2 Submit with delivery of each unit a copy of the factory inspection and test report, and include a copy of each report with O & M Manual project close-out data.

.3 Submit a site inspection and start-up report from manufacturer’s representative as specified in Part 3 of this Section.

.4 Submit a signed copy of tower manufacturer’s extended warranty, in name of Owner, for complete cooling tower rotating mechanical equipment (fan, fan shaft, bearings, sheaves, motor, drive system, and mechanical equipment support) for 4 years following date of expiration of 1 year Contract warranty. Extended warranty is to be written, full on-site parts and labour warranty with same terms and conditions as Contract warranty, but is to be direct from tower manufacturer to Owner.

.5 Submit name and address of tower manufacturer’s local (to project) service representative.

1.02 QUALITY ASSURANCE

.1 Cooling tower(s) and installation of cooling tower(s) are to be in accordance with requirements of following:

.1 applicable Provincial Codes and Standards;

.2 Cooling Technology Institute CTI STD-201, Certified Cooling Towers;

.3 Cooling Technology Institute CTI ATC-105, Acceptance Test Code;

.4 ASHRAE Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings.

.2 Cooling tower manufacturer is to be represented in locale of Project by an experienced, factory trained service agency with fully stocked parts department and personnel available seven days a week. Submit name of agency with shop drawings/product data.

2 PRODUCTS

2.01 COOLING TOWER

.1 Baltimore Aircoil Co. induced draft, crossflow, vertical air discharge, factory assembled open circuit cooling tower in accordance with drawing schedule.

.2 Tower Construction

.1 Tower and its components are to be designed to withstand applicable wind, seismic, shipping and hoisting loads, and, unless otherwise specified, metal components, including support structure, panels, fan cylinder extensions, and nuts, bolts and fasteners constructed of G-235 hot-dipped galvanized steel with cut edges given a heavy factory coat of zinc-rich compound.


WSP: 19M-00265-00

.2 Tower structure constructed using double-brake flanges with water-tight joints.

.3 Fan and drive system, including motor factory mounted and aligned and located in the dry entering air stream.

.4 Heat transfer section(s) consisting of fill, water distribution system, and drift eliminators.

.5 Removable air intake louvres, separate from fill and designed to prevent water splash out during fan cycling and constructed of galvanized steel.

.6 The unit shall be equipped with two (2) tapered hoods lined with sound absorbing fiberglass acoustical baffles to reduce sound levels from the top of the unit.

.7 The unit shall be equipped with galvanized steel solid bottom panels for a ducted air intake/indoor application.

.8 The cooling tower shall be provided with a split casing design with galvanized steel air baffle to allow for independent fan motor operation.

.3 Fill and Drift Eliminators

.1 Fill and drift eliminators, formed from self-extinguishing PVC with a flame spread rating of 5 in accordance with ASTM E84, with a spacing between fill sheets of 20 mm (¾"), and elevated above cold water basin.

.4 Water Distribution System

.1 Able to distribute water evenly over fill and consisting of:

.1 hot water distribution basins constructed of G235 hot-dip galvanized steel with basin weirs, plastic metering orifices and snap-in type gravity flow non-clog nozzles;

.2 lift-off type basin covers constructed of same material as basin and designed to withstand 244 kg/m2 (50 lb/ft2) live load or a 91 kg (200 lb) concentrated load.

.5 Cold Water Basin

.1 Galvanized steel cold water basin sloped for positive drainage to a depressed section into which accumulated silt can be flushed to prevent build-up of silt and debris under fill area, and complete with:

.1 large area lift-out suction strainer, constructed of same material as basin, with perforated openings sized smaller than spray nozzle orifices;

.2 removable anti-vortexing device, constructed of same material as basin, to prevent air entrainment;

.3 corrosion resistant slow-acting water make-up valve with polystyrene filled plastic float for adjustment of operating water level;

.4 rectangular hinged access doors for access to strainer and water make-up valve assembly;


WSP: 19M-00265-00

.5 factory lined with a "TriAmor" polyurethane liner;

.6 required pipe connections.

.6 Basin Heater

.1 The cooling tower cold water basin shall be provided with two (2) 7 kW electric heaters to prevent freezing in low ambient conditions. The heater shall be selected to maintain 40°F basin water temperatures at -20°F ambient. The heaters shall be 575V/3 phase/60Hz electric and shall be provided with low water cutout and thermostat.

.7 Fan(s)

.1 Fans shall be dynamically balanced, forwardly curved, centrifugal type selected to provide optimum thermal performance with minimal sound levels. Fan housings shall have curved inlet rings for efficient air entry and four-sided rectangular discharge cowls shall extend into the basin to increase fan efficiency and prevent water from splashing into the fans. Fans and shafts shall be supported by heavy-duty, self-aligning, relubricatable bearings with cast iron housings, designed for a minimum L10 life of 40,000 hours (280,000 Hr. Avg. Life).

.8 Motor

.1 Furnish two (2) 25 HP, 1800 RPM Totally Enclosed, Fan Cooled (TEFC), squirrel cage, ball bearing type fan motors suitable for outdoor service. Fan motors shall be inverter-duty type designed per NEMA Standard MG1, Section IV, and Part 31 suitable for 575 volt, 60 hertz, and 3 phase electrical service

.9 Variable Frequency Drive (VFD)

.1 In accordance with requirements specified in Section entitled Variable Frequency Drives, supplied with tower by tower manufacturer/supplier and complete with:

.2 solid state, PID temperature controller to adjust frequency output of drive in response to tower cold water temperature, and temperature of cold water displayed on VFD door;

.3 communication protocol to interface with building automation system;

.4 bypass contactor to be cycled on/off while operating in bypass to maintain set-point temperature of cold water;

.5 operator controls mounted on front of enclosure and consisting of start and stop push button, bypass/VFD selector switch, auto/manual selector switch, manual speed potentiometer, and solid state temperature controller;

.6 cycle motor on/off when the minimum allowable motor speed is reached to prevent motor overheating problems.

.10 Power and Control Panel

.1 Factory pre-wired panel consisting of surface wall mounting enclosure (NEMA 2 for indoor and NEMA 4X for outdoor) and equipped with:


WSP: 19M-00265-00

.1 door interlock type fused disconnect switch, lockable in the "Off" position, and a system "On" indicating LED;

.2 multiport terminal block for connection of auxiliary equipment, including a building automation system;

.3 basin heater control:

.1 protected magnetic contactor to energize heater(s);

.2 120 volt secondary fused control transformer;

.3 heater "off/auto" selector switch;

.4 heater "on" indicator light.

.4 ability to provide power and house the two fan VFDs.

.11 DELETED

.12 Vibration Limit Switch

.1 Single pole, double throw, manual remote reset, adjustable vibration limit switch with contact for building automation system monitoring in a NEMA 4 housing, installed on the mechanical equipment support structure for site connection to tower control panel to shut-down tower should excessive vibration occur.

.13 Sound Level

.1 Maximum sound levels (dB) measured 15 m (50') from cooling tower operating at full fan speed is to not exceed following values:

Location 63 125 250 500 1000 2000 4000 8000 dB(A)

Top 61 58 57 53 45 46 45 46 55

Air inlet 69 68 65 63 60 59 55 53 66

Back 60 59 52 53 50 47 44 38 55

.14 Accessories

.1 Weatherproof vibration isolation rails, zinc coated after fabrication, designed for a 25 mm (1") static deflection and a maximum wind speed of 80 km/h (50 miles/hr), factory supplied loose with tower and conforming to requirements specified in Section entitled Mechanical Vibration Control.

.2 PVC basin sweeper piping with plastic eductor nozzles increasing filtration flow rate by a factor of 5 and designed and arranged to force dirt and debris to pick-up location in basin.


WSP: 19M-00265-00

.3 The cooling tower is to be provided with a centrifugal solids separator, equal to Amiad Tower Clean Package model ICS2-TCP-100 complete with carbon steel with epoxy coated exterior separator rated for 150 PSI, 100 GPM high head pump with 3HP TEFC premium efficiency motor and pre-strainer, schedule 80 PVC pipe between pump and separator, isolation valve kit, fail safe auto purge with controller, timer and solenoid valve mounted on stainless steel skid.

.15 Acceptable manufacturers are:

.1 Baltimore Aircoil Co.;

.2 SPX Cooling Technologies Inc. Marley;

.3 Evapco Inc.

3 EXECUTION

3.01 INSTALLATION OF COOLING TOWER

.1 Provide cooling tower(s).

.2 Secure tower in place, level, and plumb, on vibration isolation on support base or structure provided.

.3 Mount components shipped loose with tower, including control components. Connect with required piping, including valved drain piping.

.4 Surface wall mount power and control panel and perform required control wiring between tower and panel.

.5 Perform required control wiring in conduit in accordance with electrical work wiring standards and control wiring schematics supplied with equipment.

.6 Provide solid separator package and connect complete to cooling tower.

.7 Do not permit piping to be supported by tower casing.

.8 Refer to Section entitled Basic Mechanical Materials and Methods for equipment/system manufacturer certification requirements.

.9 Refer to Section entitled Basic Mechanical Materials and Methods for equipment/system start-up requirements.

.10 Include for one 8 hour day of on-site operation demonstration and training session. Training is to be a full review of components including but not limited to a full operation and maintenance demonstration, with control parameters and abnormal events.

END OF SECTION

EXISTING HOUSEKEEPINGPAD TO REMAIN



EXISTING COOLINGTOWER INTAKE C/W

BIRDSCREEN TO REMAIN

250Ø CWS

250Ø CWS

250Ø CWS

250Ø CWR

75Ø HWS

75Ø HWR

APPROXIMATE LOCATION OFEXISTING MOTOR CONTROLCENTRE 'MCC-8'.

APPROXIMATE LOCATION OFEXISTING MOTOR CONTROLCENTRE 'MCC-7'.

50Ø MAKE UP WATER PIPE

MAKE UP WATER

EXISTING CONDENSER WATERHEAT EXCHANGER TO REMAIN

ET-2

CT-1

P-1

SOLIDS SEPARATORPACKAGE

P-2

COOLING TOWER CONTROLPANEL C/W VFDS.

PROVIDE NEW COOLING TOWERAND ASSOCIATED ACCESSORIES.CONNECT COMPLETE WITHEXISTING PIPING. PROVIDE NEWVALVES AT COOLING TOWER.

PROVIDE NEW SOLIDSSEPARATOR PACKAGE WITHCOOLING TOWER ANDCONNECT COMPLETE WITHNEW COOLING TOWER.

250Ø FLUE UP

PROVIDE NEW CONDENSER WATER PUMPSAND ASSOCIATED ACCESSORIES. CONNECTCOMPLETE WITH EXISTING PIPING.

PROVIDE NEW BOILER LOOP EXPANSIONTANK AND CONNECT COMPLETE TOEXISTING PIPING. PROVIDE NEW VALVESAT THE EXPANSION TANK. PROVIDE100MM HOUSEKEEPING PAD. REFER TODRAWING DETAIL.

PROVIDE NEW PRIMARY BOILER PUMPS ANDASSOCIATED ACCESSORIES. CONNECTCOMPLETE WITH EXISTING PIPING.

PROVIDE NEW BOILERS ANDASSOCIATED ACCESSORIES. CONNECTCOMPLETE WITH EXISTING PIPING.PROVIDE NEW BOILER FLUE, REUSINGEXISTING ROOF OPENINGS.

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IN WRITING.

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DO NOT SCALE DRAWINGS.

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No.

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DATE

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REVISION

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1.

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2019/05/09

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ISSUED FOR TENDER

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2019/05/31

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ISSUED WITH ADDENDUM M-1

allen & sherriff

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