RFB952500-01 - Addendum No. 2.pdf

ADDENDUM NO. 2

Date: 8/7/26

Project Name: 9525.00 – IPBS Motivair Chiller Replacements

DAS RFB #: 952500-01

DAS Project #: 9525.00

PROPOSALS DUE: 8/11/26

The receipt of this Addendum shall be acknowledged by the design firm in their submission.

This addendum is issued to modify, clarify, or amend the original Project Drawings and

Specifications and is hereby made part of the Contract Documents. The Contractor shall be responsible for incorporating items in this Addendum to the Work. The following shall take precedence over anything to the contrary in the Drawings or Specifications.

This Addendum consists of:

1) Scope Clarification:

a. Remove associated roofing work from bid

i. Exclude patching of existing curbs of removed chillers

ii. Exclude patching of existing roof for installation of new support beams

2) Questions/Reponses:

a. Q: Where is the location of the EDP08 that is referenced in the electrical drawings?

i. R: It is adjacent to the MDP08 panel in the electrical room.

b. Q: Are the existing pump inertia bases being replaced with new inertia bases?

i. R: Yes, new inertia bases are to be provided.

c. Q: Provide specifications for the base grout.

i. R: Any high strength, non-shrink cementitious grout will be acceptable.

Example products would be SikaGrout-212/713, Dayton Superior 1107 Advantage or Euclid NC Grout.

3) Drawing Updates:

a. Mechanical Drawings

i. Drawing MD101 – FLOOR PLAN HVAC DEMOLITION

1. MODIFY chilled water piping as shown.

2. ADD proposed chiller staging note as shown.

3. Refer to attached full size sheet MD101.

ii. Drawing M101 – FLOOR PLAN HVAC

1. MODIFY chilled water piping as shown.

2. Refer to attached full size sheet M101.

iii. Drawing M301 – MECHANICAL DETAILS

1. MODIFY chilled water system piping and controls diagram as shown.

2. ADD glycol note as shown.

3. Refer to attached full size sheet M301.

iv. Drawing M501 – MECHANICAL SCHEDULES

1. MODIFY chiller and dry cooler schedules as shown.

2. Refer to attached full size sheet M501.

b. Electrical Drawings:

i. Drawing E101 – ELECTRICAL POWER

1. CLARIFY panel types for panels SB-4 and BE with provided pictures on drawing.

2. CLARIFY existing panel locations in the electrical room.

Updated to match existing conditions.

3. Refer to attached full size sheet MD101.

c. Revised drawings included: MD101, M101, M301, M501, E101

4) Approved Manufacturers:

Spec Reference Equipment Type Manufacturer

23 21 23 Hydronic Specialties American Wheatley

23 21 23 Hydronic Pumps Grundfos

23 65 33 Dry Cooler USA Coil, Guntner

End of Addendum

A. REFER TO M000 FOR GENERAL NOTES & SYMBOLS.

B. REFER TO M301 FOR MECHANICAL DETAILS AND CONTROLS.

GENERAL NOTES:

AIR COOLED CU

(EXIST)

AIR COOLED CHILLER

(DEMO)

AIR COOLED CHILLER

(DEMO)

RTU

(EXIST)

RTU

(EXIST)

BUFFER TANK

(EXIST)

AIR COOLED CU

(EXIST)

AIR COOLED CU

(EXIST)

EXISTING REF PIPING TO REMAIN (E).

REMOVE ALL EXISTING EXTERIORINSULATION AND

PREPARE PIPING FOR NEW INSULATION AND JACKET.

(TYP. ALL CWS/CWR PIPING ON ROOF AND DOWN TO BUFFER TANK.)

REMOVE EXISTING EXTERIOR PIPING INSULATION AND

EXTERIOR JACKET FROM REFRIGERANT PIPING

FOR CONDENSING UNIT.

REMOVE PUMPS AND

INTERTIA BASES.

PREPARE PIPING FOR

NEW CONNECTION.

6" CWS (E)

6" CWR (E)

3" CWR (E)

3" CWR (E)

3" CWS (E)

3" CWS (E)

ROOF HATCH

(E)

ALL ROOF WORK SHOULD

MAINTAIN EXISTING ROOF

WARRANTY. EXISTING ROOF

WARRANTY CONTACT IS KOOPMAN

ROOFING (641-621-0131).

REMOVE EXISTING CHILLER

CURBS AND PATCH ROOF TO

MATCH EXISTING.

(TYP.)

PROPOSED CHILLER CONSTRUCTION STAGING:

1) SET BOTH NEW CHILLERS.

2) ISOLATE AND DEMO EXISTING CH-1.

3) COMPLETE PIPING AS SHOWN TO NEW CH-1 & 2.

4) STARTUP NEW CH-1.

6) ISOLATE AND DEMO EXISTING CH-2.

7) COMPLETE PIPING AS SHOWN TO NEW CH-2.

8) START UP CH-2.

EXISTING GLYCOL FEED STATION

AIR

SEPARATOR

(E)

EXPANSION TANK

(E)

EXISTING CONTROL

VALVE TO BE REMOVED.

(TYP.)

REMOVE EXISTING

BALANCING VALVE.

(TYP.) 1

C W

R

C W

R

4" CWR (E)

4" CWR (E)

REMOVE CAP

Drawing #:

Date:

Project No:

© 2022 KCL Engineering L.L.C. These documents have been prepared specifically for this project. they are not suitable for use on other projects or in other locations without the expressed written approval and participation of KCL Engineering L.L.C. A limited license is granted to the owner/contractor to reproduce these documents or portions thereof, but only for use in connection with this project. Unauthorized reproduction is prohibited.

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info@kclengineering.com

300 4th St West Des Moines, IA 50265 515-724-7938

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MD101

CONSTRUCTION

DOCUMENTS

07/06/2026

9525.00

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FLOOR PLAN HVAC

DEMOLITION

N

1/8" = 1'-0"

LEVEL 2 HVAC DEMOLITION PLAN

# Revision Date

1 Addendum 2 8.07.26

A. REFER TO M000 FOR GENERAL NOTES & SYMBOLS.

B. REFER TO M301 FOR MECHANICAL DETAILS AND CONTROLS.

GENERAL NOTES:

B B

C C

D D

CONDENSERS

EMERGENCY GENERATOR

MECHANICAL / EQUIP.

EQUIP. ROOM

CONTROL

MECHANICAL / EQUIP.

RTU

(E)

RTU

(E)

BUFFER TANK

(E)

AIR COOLED CU

(E)

AIR COOLED CU

(E)

AIR COOLED CU

(E)

EXISTING REF PIPING TO REMAIN (E).

3" CWS (E)

3" CWS (E)

3" CWR (E)

3" CWR (E)

6" CWS (E)

6" CWR (E)

PROVIDE NEW INSULATION

AND JACKET FOR EXTERIOR

REF LINES. REFER TO HVAC

PIPING AND INSULATION SCHEDULE,

MECHANICAL SPECIFICATIONS

FOR ADDITIONAL INFORMATION.

PROVIDE NEW INSULATION

AND JACKET FOR EXTERIOR

CWS/CWR LINES. REFER TO HVAC

PIPING AND INSULATION SCHEDULE,

MECHANICAL SPECIFICATIONS

FOR ADDITIONAL INFORMATION.

(TYP. ALL CWS/CWR LINES ON ROOF

AND TO BUFFER TANK.)

AHU

(E)

AHU

(E)

EXPANSION TANK

(E)

AIR SEPARATOR

(E)

DC

CWP

CWP

3-WAY VALVE

ROOF HATCH

(E)

C W

R (E

C W

R (E

3" CWS

3" CWR

CH

CH

ALL ROOF WORK SHOULD

MAINTAIN EXISTING ROOF

WARRANTY. EXISTING ROOF

WARRANTY CONTACT IS KOOPMAN

ROOFING (641-621-0131).

LOCK EXISTING

DECOUPLE VALVE

CLOSED

1 1/2"

4" CWR (E)

4" CWR (E)

ISOLATE GYLCOL FEED STATION

AND EXPANSION TANK PIPING AT

EXISTING VALVES NEAR MAIN AND

RE-PIPE TO BLIND FLANGE WITH

VALVE ON SUCTION SIDE OF PUMPS.

1 2

3 4

MANUAL VALVE OPERATION SCHEDULE:

1: CH-1 CHILLER ISOLATON - CLOSE VALVES 1&2

2: CH-2 CHILLER ISOLATON - CLOSE VALVES 3&4

3: SERIES CONFIGURATION:

(NORMAL OPERATION) - CLOSE VALVE 5 AND

OPEN VALVE 6)

CLOSE VALVE

AND REMOVE

HANDLE.

CLOSE VALVE

AND REMOVE

HANDLE.

GLYCOL FEED

STATION (E)

Drawing #:

Date:

Project No:

© 2022 KCL Engineering L.L.C. These documents have been prepared specifically for this project. they are not suitable for use on other projects or in other locations without the expressed written approval and participation of KCL Engineering L.L.C. A limited license is granted to the owner/contractor to reproduce these documents or portions thereof, but only for use in connection with this project. Unauthorized reproduction is prohibited.

P lo t D a te

T im e

Drawing Name:

info@kclengineering.com

300 4th St West Des Moines, IA 50265 515-724-7938

/7

/2

:3 :2

A

M

M101

CONSTRUCTION

DOCUMENTS

07/06/2026

9525.00

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FLOOR PLAN HVAC

N

1/8" = 1'-0"

LEVEL 2 HVAC PLAN

EXPANSION

TANK

BYPASS

FILTER

100 MICRON (E)

AIR

SEPARATOR (E)

1/

4" C

W R

1/

4" C

W S

MANUAL AIR

VENT

4"CWS 4"CWS 4"CWS

4"CWR

4" C

W R

AUTOMATIC AIR VENT

(TYP.)

67 TOTAL GALLONS,

34 GALLONS ACCEPTANCE.

4"CWR

THERMOMETER

(TYP.)

3" C

H R

3" C

H

TO AHU-1

CHILLED

WATER COILS

WITH 3-WAY

VALVES (E)

3"CWS

3"CWR

EXTERIOR

WALL

170 GPM

80 GPM

80 GPM

80 GPM

40 MESH

STRAINER

BYPASS FILTER. 100 MICRON

STARTUP, 20 MICRON FINAL.

TO AHU-2

CHILLED

WATER COILS

WITH 3-WAY

VALVES (E)

PRIMARY

PUMP

TRIPLE DUTY

VALVE (TYP.)

PRIMARY

PUMP

3"CWS

(35 TONS)

80 GPM

(35 TONS)

4" DECOUPLE

LINE

4"CWR

170 GPM

170 GPMGLYCOL FEED

STATION (E)

4"CWS

CH-1

80 TON AIR

COOLED

CHILLED

WATER BUFFER

TANK (E)

(1,000 GAL.)

GRADE

6"CWR

LOCKED CLOSED VALVE

3" C

W R

CHILLER WATER PUMP OPERATION:

WHEN THE COOLING SYSTEM IS MANUALLY ENABLED AT THE DDC, THE CHILLED WATER PUMP SHALL BE ENABLED AND SHALL RUN CONTINUOUSLY. PUMP SPEED SHALL BE ESTABLISHED BY THE TAB CONTRACTOR TO PROVIDE 170 GPM. SYSTEM HAS FULLY REDUNDANT CHILLERS/PRIMARY PUMPS THAT SHOULD BE USED IN ALTERNATING

SCHEDULE DETERMINED BY THE OWNER.

CHILLER OPERATION:

THE CHILLER SHALL BE CONTROLLED BY THE LOCAL CONTROLLER. THE CHILLER CONTROLLER WILL MODULATE AND ADJUST COMPRESSOR STAGING, CONDENSER FAN OPERATION, HOT GAS BYPASS CONTROL TO ACHIEVE CHILLED WATER SUPPLY SETPOINT, THE DRY COOLER WILL BE CONTROLLED BY THE DDC. WHEN THE COOLING

SYSTEM IS MANUALLY ENABLED AT THE DDC, THE FOLLOWING SEQUENCE WILL OCCUR:

• CHILLED WATER PUMP WILL START

• CHILLED WATER FLOW SWITCH WILL BE SET

• CHILLED WATER SETPOINT WILL BE SET TO 44F (ADJ.).

• AFTER A 10 MIN. WAIT, CHILLER WILL BE ENABLED.

WHEN THE COOLING SYSTEM IS MANUALLY DISABLED AT THE DDC, THE FOLLOWING SEQUENCE WILL OCCUR:

• AFTER A 10 MIN. WAIT, CHILLER WILL BE DISABLED.

• AFTER A 20 MIN. WAIT, CHILLED WATER PUMP TO BE STOPPED.

ADDITIONAL COOLING MODE:

• IF CHILLED WATER SETPOINT IS NOT ABLE TO BE MAINTAINED FOR 20 MIN. (ADJ.) WITH ENABELED CHILLER FULLY LOADED, THEN REDUNDANT CHILLER SHALL BE

ENABLED AND BOTH CHILLERS SHALL MODULATE TO MAINTAIN SETPOINT. AFTER CHILLED WATER SETPOINT HAS BEEN MAINTAINED FOR 30 MIN., REDUNDANT

CHILLER SHALL BE DISABLED AND RETURN TO ALTERNATING SCHEDULE.

DRY COOLER OPERATION:

• IF O.A. TEMP IS BELOW 35F (ADJ.) FOR 1 HOUR (ADJ.) THEN DRY COOLER 3-WAY VALVE SHALL FULLY OPEN AND FANS SHALL MODULATE TO MAINTAIN SETPOINT IN

CONJUCTION WITH CHILLER.

• WHEN DRY COOLER IS ABLE TO MAINTAIN SET POINT WITH ALL FANS OFF FOR 1 HOUR (ADJ.), CHILLER SHALL BE DISABLED AND 3-WAY VALVE SHALL START TO

MODULATE TO MAINTAIN SETPOINT AS REQUIRED.

WHEN O.A. TEMP RISES ABOVE 38F (ADJ.) FOR 1 HOUR (ADJ.), FULLY CLOSE 3-WAY VALVE TO ALLOW FULL BYPASS AND DISABLE DRY COOLER.

EXISTING BUFFER TANK BYPASS VALVE CONTROL. PROVIDE ABILITY ON USER INTERFACE TO MANUALLY OPEN BYPASS VALVE FOR BUFFER TANK. NORMAL OPERATION IS

TO HAVE CLOSED.

EXISTING ISOLATION CONTROL VALVES SHALL REMAIN AND BE USED AS NEEDED TO ISOLATE EACH CHILLER IF SERVICE IS NEEDED. CHILLERS CAN ALSO BE ISOLATED

MANUALLY VIA MANUAL VALVES.

TRENDS

ALL POINTS SHALL BE HISTORICALLY TRENDED. TREND POINTS EVERY 15 MIN OVER A 365 DAY PERIOD OF TIME.

FLOW METER SHOWN SHALL BE USED TO VERIFY FLOW AND CALCULATE APPROXIMATE CURRENT TONNAGE ON USER INTERFACE.

ALARMS AND INTERLOCK SAFETIES:

THE FOLLOWING SHALL SHUT DOWN THE ENABLED CHILLER AND PUMP AND SHALL INDICATE AN ALARM CONDITION. DDC SHALL ENABLE REDUNDANT CHILLER AND PUMP:

- PUMP STATUS CAN NOT BE VERIFIED WITH CURRENT RELAY (AUTO RESET)

- FLOW SWITCH CAN NOT BE VERIFED (AUTO RESET)

THE FOLLOWING SHALL DISABLE THE ENABLED PUMP AND SHALL INDICATE AN ALARM CONDITION. DDC SHALL ENABLE REDUNDANT PUMP.

- PUMP STATUS CAN NOT BE VERIFIED WITH CURRENT RELAY (AUTO RESET)

- DRY COOLER FAN STATUS CAN NOT BE VERIFIED WHEN ENABLED

ALARMS

THE FOLLOWING SHALL INDICATE AN ALARM CONDITION:

- A GENERAL VFD ALARM

- A GENERAL CHILLER ALARM

- CHILLED WATER SUPPLY TEMPERATURE IS > OR < 5°F FROM SETPOINT FOR MORE THAN 10 MIN.

COOLING SYSTEM REPORT GENERATION:

BAS SHALL MONITOR THE FOLLOWING POINT ON 5 MIN. (ADJ.) INTERVALS WITH SIGNAL TREND. THE TREND SHALL RUN FOR A 365 DAY (ADJ.)

DURATION AT WHICH POINT THE NEWEST VALUES SHALL OVERWRITE THE OLDEST VALUES:

• DATE

• TIME

• GLOBAL OUTSIDE AIR TEMP. (F)

• SYSTEM CHILLED WATER SUPPLY TEMP (F)

• SYSTEM CHILLED WATER SUPPLY TEMP SETPOINT (F)

• SYSTEM CHILLED WATER RETURN TEMP (F)

• SYSTEM CHILLED WATER FLOW RATE (GPM)

• COOLING SYSTEM LOAD (TONS)

• OPERATIONAL STATUS OF CHILLER, CHILLED WATER PUMP.

THIS INFORMATION SHALL BE ACCESSIBLE TO VIEW IN NEITHER TABULAR OR GRAPHICAL FORM ON THE BAS.

ONCE PER MONTH THE BAS SHALL RECORED THE LARGEST COOLING SYSTEM LOAD (IN TONS) WHICH OCCURED DURING THAT MONTH, THE DATE, TIME, OUTSIDE AIR TEMPERATURE, CHILLED WATER SUPPLY AND RETURN TEMPERATURES WHICH COINCIDED WITH THAT EVENT SHALL ALSO BE RECORDED. THIS INFORMATION SHALL BE STORED TO A MEMORY LOCATION ON THE BAS OPERATOR INTERFACE THAT IS MAINTAINED

(NOT AUTOMATICALLY OVERWRITTEN).

CWP-1

CWP-2

CH-2

80 TON AIR

COOLED

N.C.

DC-1

DRY COOLER

N.C.

AI-3-WAY VALVE MODULATION

AI-CHILLER SETPOINT

DI-CHILLER ALARM

DO-CHILLER ENABLE

BACNET CONNECTION

CHILLER

CONTROL

PANEL

(ADDITIONAL STANDARD

CHILLER POINTS THRU

BACNET CONNECTION)

(TYP. 2)

POWER WIRING BY EC

CONTROL WIRING BY TCC

VFD'S PROVIDED BY TCC,

POWERED BY EC.

TO PUMP

(TYP. 2)

AO-VFD SPEED

DI-VFD ALARM

DO-VFD ENABLE

PUMP VFD

170 GPM

DI - CWP-2

PUMP STATUS

DI - CWP-1

PUMP STATUS

N.O.

FM

RECALIBRATE EXISTING

FLOW METER

CONNECT COMBINED

LINE HERE TO EXISTING

BLIND FLANGE WITH VALVE.

PROVIDE REDUCER FROM

LINE SIZE AS REQUIRED.

1 1/2"

CLOSE EXISTING VALVE

AND REMOVE HANDLE.

1"

1"

M.C. SHALL BE RESPONSIBLE TO PROVIDE ADDITIONAL UNDILUTED

PROPYLENE GLYCOL AND ANY ASSOCIATED CHEMICAL WATER

TREATMENT AS REQUIRED TO INCREASE THE EXISTING CHILLED

WATER SYSTEM FROM 35% TO 50% PROPYLENE GLYCOL. SYSTEM

VOLUME IS ESTIMATED TO BE APPROXIMATELY 2,500 GALLONS.

100 PSI

PT PORT (TYP.)

TEMPERATURE GAUGE (TYP.)

PRESSURE GAUGE (TYP.)

FLEXIBLE CONNECTOR

(TYP.)

STRAINER (TYP.)

DO - DRYCOOLER FAN ENABLE/DISABLE (TYP. 12)

DI - DRYCOOLER FAN STATUS (TYP. 12)

3-WAY CONTROL VALVE

FLEX CONNECTOR

(TYP.)

3"CWS

3"CWR

3" CWS/CWR

INSULATE ALL PUMP SURFACES INCLUDING VOLUTE

AND SUCTION DIFFUSER

TRIPLE DUTY VALVE

FLEX CONNECTOR (TYP. OF 2)

GAUGE ISOLATION VALVE

BUTTERFLY

VALVE

PRESSURE GAUGE

SUCTION DIFFUSER

REMOVE STARTUP

STRAINER

AFTER STARTUP

OF SYSTEM.

GROUT BASE

FULL OF

CONCRETE.

PUMP

ANCHOR BOLTS SET

IN BASE AT TIME OF

POUR

UNHOUSED SPRING

ISOLATORS W/ 2"

DEFLECTION

CONCRETE FILLED

INERTIA BASE W/ WEIGHT

EQUAL TO OR GREATER

THAN PUMP ASSEMBLY

NEW PUMP WITH INERTIA

BASE WITH ISOLATORS TO BE

LOCATED ON EXSITING PAD.

FIELD VERIFY ALL FINAL

EQUIPMENT DIMENSIONS

PRIOR TO RELASING

SUBMITTALS FOR REVIEW.

DIGITAL OUTPUT

DIGITAL INPUT

ANALOG OUTPUT

DO

DI

AO

TEMPERATURE SENSOR AS INDICATED

STATIC PRESSURE SENSOR

ANALOG INPUT

NORMALLY OPEN

NORMALLY CLOSED

AI

NO

NC

TS

SP

DIFFERENTIAL PRESSURE SENSOR

FREEZE STAT

ENTHALPY SENSOR

TEMPERATURE SENSOR (AVERAGING)

DPS

ES

FZ

TS

DUCT DETECTOR (BY OTHERS)SD

NORMALLY OPEN (POWERED CLOSED)

VELOCITY TRANSMITTERVT

24V DAMPER/VALVE MOTORM

VFD

ADJ ADJUSTABLE

VARIABLE FREQUENCY DRIVE

NORMALLY CLOSED (POWERED OPEN)

DEW POINT SENSORDP

N.O.

N.C.

CONTROL DIAGRAM SYMBOLS

GENERAL CONTROL NOTES:

TEMPERATURE CONTROL CONTRACTOR TO PROVIDE A COMPLETE

CONTROL SYSTEM, INCLUDING SENSORS, RELAYS, WIRING, CONDUIT,

CONTROLLERS, AND OTHER COMPONENTS. INSTALL ALL CONTROL

COMPONENTS PER MANUFACTURER'S RECOMMENDATIONS. TCC TO

INSTALL ALL MFR PROVIDED CONTROLS COMPONENTS FURNISHED

LOOSE FROM FACTORY.

ALL DIFFERENTIAL / STATIC PRESSURE TRANSMITTERS ARE TO BE

HARDWIRED BACK TO THEIR CONTROLLERS IN LIEU OF BEING

TRANSMITTED OVER THE COMMUNICATION NETWORK.

ALL AVERAGING SENSORS (LOW LIMIT, MAT, ETC) SHALL HAVE ONE

LINEAL FOOT OF SENSOR PER SQUARE FOOT OPENING AND WITHIN 6"

OF ALL EDGES OF OPENINGS.

ALL SENSORS ARE TO BE SUPPLIED WITH APPROPRIATE RANGES TO

ACCOMPLISH STATED CONTROL SEQUENCES.

ALL SAFETY SENSORS (FREEZE STATS) SHALL BE HARD WIRED TO

STOP FANS, CLOSE OUTSIDE DAMPERS, AND RELIEF DAMPERS.

TCC TO PROVIDE A FULL GRAPHICS CONTROL PACKAGE AS PART OF

PROJECT.

ALL VFD'S ARE TO COME WITH SURGE PROTECTION. REFER TO DIV 26

VFD SPECIFICATION.

DIAGRAMS ARE SCHEMATIC. PROVIDE ADDITIONAL POINTS WHERE

REQUIRED TO MEET SEQUENCE OF CONTROL.

COORDINATE WITH EC ON REQUIRED POWER REQUIREMENTS AND

LOCATIONS.

UNLESS STATED OTHER, ELECTRICAL CONTRACTOR IS TO PROVIDE

ALL LINE VOLTAGE POWER AND CONDUIT FOR CONTROL SYSTEM AND

ALL CODE REQUIRED HARD WIRED POINTS FOR INTERACTION WITH

FIRE ALARM SHUTDOWN.

MECHANICAL CONTRACTOR IS RESPONSIBLE FOR INSTALLING ALL

CONTROL VALVES, DAMPERS, AND DAMPER ACTUATORS.

BACNET PROTOCOL SHALL BE IP/MSTP.

CONTROLS SHALL BE BY JCI CONTROLS (NO EQUALS). CONTROLS

SHALL MATCH EXISTING FACILITY STANDARDS FOR DYNAMIC

GRAPHICS, TRENDING, ETC.

Drawing #:

Date:

Project No:

© 2022 KCL Engineering L.L.C. These documents have been prepared specifically for this project. they are not suitable for use on other projects or in other locations without the expressed written approval and participation of KCL Engineering L.L.C. A limited license is granted to the owner/contractor to reproduce these documents or portions thereof, but only for use in connection with this project. Unauthorized reproduction is prohibited.

P lo t D a te

T im e

Drawing Name:

info@kclengineering.com

300 4th St West Des Moines, IA 50265 515-724-7938

/7

/2

:3 :2

A

M

M301

CONSTRUCTION

DOCUMENTS

07/06/2026

9525.00

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MECHANICAL DETAILS

NOT TO SCALE

CHILLED WATER SYSTEM PIPING AND CONTROLS DIAGRAM

NTS

END SUCTION PUMP WITH INERTIA BASE DETAIL

NTS

CONTROL DIAGRAM GENERAL NOTES & SYMBOLS

Drawing #:

Date:

Project No:

© 2022 KCL Engineering L.L.C. These documents have been prepared specifically for this project. they are not suitable for use on other projects or in other locations without the expressed written approval and participation of KCL Engineering L.L.C. A limited license is granted to the owner/contractor to reproduce these documents or portions thereof, but only for use in connection with this project. Unauthorized reproduction is prohibited.

P lo t D a te

T im e

Drawing Name:

info@kclengineering.com

300 4th St West Des Moines, IA 50265 515-724-7938

/7

/2

:3 :2

A

M

M501

CONSTRUCTION

DOCUMENTS

07/06/2026

9525.00

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MECHANICAL

SCHEDULES

5. BASE MOUNTED PUMP, PROVIDE INTERTIA PAD.

4. PROVIDE WITH SHAFT GROUNDING KITS.

3. MOTORS TO BE SUITABLE FOR OPERATION WITH VARIABLE FREQUENCY DRIVE (VFD).

2. TCC TO PROVIDE VFD'S WITH INTEGRAL DISCONNECT. VFD'S INSTALLED BY EC.

1. REFER TO CONTROL DRAWINGS.

NOTES:

NOTES 1 THROUGH 5

VOLTAGE - PH 480 - 3

RPM 3,500

BHP 8.0

MOTOR HP 10

ELECTRICAL DATA

PUMP EFFICIENCY % 74%

IMPELLER DIAMETER RANGE (INCH) 4 - 6.25

IMPELLER DIAMETER (INCH) 5.80

OPERATING PRESSURE (FT. HEAD) 130

FLOW RATE (GPM) 170

DIMENSIONS - L x W x H (INCHES) 40 x 16 x 20

WEIGHT (LBS) 450

SERVES CHILLED WATER

TYPE END SUCTION

MODEL # FI2506D

MANUFACTURER TACO

REFERENCE CWP-1 & CWP-2

PUMP SCHEDULE

5. EXPOSED PIPING MOUNTED BELOW 6'-0" ABOVE FLOOR SHALL HAVE PVC AND EXTERIOR PIPING SHALL HAVE ALUMINUM JACKET.

4. REFER TO SPECIFICATIONS FOR FURTHER VALVE REQUIREMENTS.

3. INSULATION APPLIED TO PIPING LOCATED IN RETURN AIR PLENUMS SHALL MEET ASTM E84 25/50 FLAME AND SMOKE SPREAD RATING, AND COMPLY WITH NFPA STANDARD 90A.

2. REFER TO SPECIFICATIONS FOR FURTHER INSULATION REQUIREMENTS. INSULATION R-VALUE SHALL MEET ENERGY CODE REQUIREMENTS.

1. REFER TO SPECIFICATIONS FOR FURTHER PIPE MATERIAL, JOINT AND INSTALLATION REQUIREMENTS. PUSH TO CONNECT / PUSH ON TYPE CONNECTIONS ARE NOT ALLOWED.

NOTES:

REFRIGERANT PIPING - EXTERIOR FIELD VERIFY N/A N/A N/A ELASTOMERIC 1 1/2 ALUMINUM

CHILLED WATER - EXTERIOR 2 1/2 - 10 SCHED. 40 STEEL GROOVED OR WELDED DUCTILE IRON,BUTTERFLY ELASTOMERIC 3 ALUMINUM

CHILLED WATER - INTERIOR 2 1/2 - 10 SCHED. 40 STEEL GROOVED OR WELDED DUCTILE IRON,BUTTERFLY ELASTOMERIC 2 PVC

SYSTEM

PIPE SIZE

(INCHES)

PIPE MATERIAL

(NOTE 1)

JOINT TYPE

(NOTE 1)

SHUT-OFF VALVE TYPE

(NOTE 4)

INSULATION TYPE

(NOTE 2,3)

INSULATION

THICKNESS

(INCHES)

JACKET

(NOTE 5)

HVAC PIPING AND INSULATION SCHEDULE

CONTRACTOR SHALL PROVIDE GLYCOL ANALYSIS AND FREEZE

PROTECTION VERIFICATION AT STARTUP. REFER TO SPECIFICATIONS FOR

ADDITIONAL DETAILS.

5. PROVIDE COTTONWOOD SCREENS BY CHILLER MANUFACTURER.

4. PROVIDE INTERIA BASE FRAME.

3. UNIT TO HAVE LOW AMBIENT OPERATION CABABILITIES TO OPERATE DOWN TO -20F.

2. PROVIDE WITH SINGLE POINT POWER & NON-FUSED DISCONNECT.

1. UNIT PROVIDED WITH FACTORY INSTALLED FREEZE PROTECTION.

NOTES:

NOTES 1 THROUGH 5

STARTER TYPE ACROSS THE LINE

SINGLE POINT MOCP 200

SINGLE POINT MCA 163

TOTAL UNIT POWER (kW) 85.50

VOLTAGE / PHASE 460/3

ELECTRICAL DATA

CAPACITY STEPS 4

NUMBER OF COMPRESSORS 4

NUMBER OF CIRCUITS 2

CONDENSER AMBIENT TEMP. (°F) 95

EVAP. PRESS. DROP (FT HD) 18.00

EVAPORATOR LVG. TEMP. (°F) 40

EVAPORATOR ENT. TEMP. (°F) 52

EVAPORATOR FLOW (GPM) 170

EVAPORATOR FLUID 50% PROP. GLYCOL

REFRIGERANT CHARGE (LBS) 134

REFRIGERANT R454B

IPLV.IP (BTU/W-H) 18

FULL LOAD EFFICIENCY (EER) 10.1

NET COOLING CAPACITY (TON) 72

NOMINAL CAPACITY (TON) 80

DIMENSIONS - L x W x H (INCHES) 146 X 89 X 93

OPERATING WEIGHT (LBS) 5,700

SERVES MASTER CONTROLS

TYPE (AIR COOLED) AIR COOLED SCROLL

MODEL # CGAM

MANUFACTURER TRANE

REFERENCE CH-1 & CH-2

CHILLER SCHEDULE

5. PROVIDE COTTONWOOD SCREENS BY CHILLER MANUFACTURER.

4. INTENT IS FOR DRY COOLER TO HANDLE CHILLED WATER COOLING LOAD BELOW 30F TO INCREASE EFFICIENCY AND REDUCE MECHANICAL COOLING.

3. UNIT SOUND IS 83 DB.

2. PROVIDE SINGLE POINT CONNECTION WITH INTEGRAL NON-FUSED DISCONNECT AND 22" HEIGHT SUPPORT LEGS.

1. SEE CONTROL DRAWINGS FOR ADDITIONAL INFORMATION.

NOTES:

NOTES 1 THROUGH 5

MOP 40.0

MCA 32.1

VOLTAGE - PH 480 / 3

MOTOR HP 1.5

ELECTRICAL DATA

FAN QTY. / RPM 12 / 1140

PRESSURE DROP (FT HD) 10

AIR VELOCITY (FPM) 645

AIR FLOW (CFM) 123,000

AMBIENT AIR TEMP (°F) 30

LWT (°F) 42

EWT (°F) 52

FLOW RATE (GPM) 170

TOTAL CAPACITY (MBH) 769

FLUID TYPE 50% PROP. GLYCOL

INTERNAL VOLUME (GAL) 72

DIMENSIONS - L x W x H (INCHES) 330 x 90 x 64

WEIGHT (LBS) 5,400

SERVES CHILLED WATER

MODEL # FEVF 26412

MANUFACTURER KRACK

REFERENCE DC-1

DRY COOLER SCHEDULE

# Revision Date

1 Addendum 2 8.07.26

W

M

M

W

POWER GENERAL NOTES

A. COORDINATE LOCATION/INSTALLATION OF MECHANICAL AND ELECTRICAL

WORK WITH ALL OTHER TRADES. NO ASPECT OF A SYSTEM INSTALLATION

OR ITS ROUGH-IN SHALL COMMENCE UNTIL PROPER AND TIMELY

COORDINATION WITH ALL TRADES ASSOCIATED WITH THE INSTALLATION HAS

TRANSPIRED. ITEMS TO BE COORDINATED SHALL INCLUDE BUT NOT BE

LIMITED TO: BUILDING STRUCTURE, SHEET METAL, PIPING SYSTEMS, LIGHT

FIXTURES, CONDUITS, CABLE TRAYS, ETC. REFER TO ALL GENERAL,

MECHANICAL, AND ELECTRICAL DRAWINGS AND SPECIFICATIONS FOR THIS

PROJECT.

B. COORDINATE ELECTRICAL REQUIREMENTS FOR MECHANICAL UNITS WITH

MECHANICAL CONTRACTOR AND FINAL MECHANICAL SHOP DRAWINGS.

C. PROVIDE PENETRATIONS REQUIRED FOR ROUTING RACEWAYS THROUGH

THE BUILDING. COORDINATE FIRE RATED WALL PENETRATIONS AND

PROVIDE CONDUIT SLEEVES AND FIRE STOPPING TO MAINTAIN RATING.

PROVIDE ALL INTERIOR PENETRATIONS ARE 1 HOUR WALLS AND EXTERIOR

PENETRATIONS ARE 2 HOURS.

LUNCH ROOM

VENDING

STORAGE ROOM

WOMENS

MENS

ELEC. RM.

MECH RM.

CORRIDOR

EFP

1169A

FIBER

GENERAL SERVICES

1170A

COMP. ROOM

TECHNICAL STORAGE

RECEIVING

CLOSET

CLOSET

JAN.

1167A

VEST.

EXISTING PANEL SB-2

DC

PANEL BE

PANEL EM

PANEL G

INSTALL 40A 3P BREAKER IN

BREAKER SPACES 1,3,5 FOR

DRY COOLER. EXISTING

WESTINGHOUSE 480V PANEL.

BE-1,3,5

CONNECT NEW

RECEPTACLES TO

EXISTING PANEL G

CIRCUIT. VERIFY EXISTING

RECEPTACLE QUANTITY

ON CIRCUIT #12. IF 6 OR

LESS, INSTALL NEW

RECEPTACLES ON #12

CIRCUIT.

G-12 EXISTING PANEL EDP08

CONDENSERS

MECHANICAL / EQUIP.

EMERGENCY GENERATOR

MECHANICAL / EQUIP.

EQUIP. ROOM

CONTROL

CWP-1

CWP-2

EXISTING PANEL SB-4

(WESTINGHOUSE)

INSTALL 20A FUSES IN

30A BUCKETS IN PANEL

FOR NEW CWP-1 AND

CWP-2. REUSE EXISTING

CONDUIT AND

CONDUCTORS FROM

SB-4 TO VFD LOCATION.

REFEED FROM NEW BREAKER IN EDP08.

REFER TO ONE-LINE FOR MORE INFORMATION.

G-12

SB-4

SB-4

EXISTING PANEL P

REMOVE BREAKERS AND INSTALL

NEW BREAKER FOR DRY COOLER

Drawing #:

Date:

Project No:

© 2022 KCL Engineering L.L.C. These documents have been prepared specifically for this project. they are not suitable for use on other projects or in other locations without the expressed written approval and participation of KCL Engineering L.L.C. A limited license is granted to the owner/contractor to reproduce these documents or portions thereof, but only for use in connection with this project. Unauthorized reproduction is prohibited.

P lo t D a te

T im e

Drawing Name:

info@kclengineering.com

300 4th St West Des Moines, IA 50265 515-724-7938

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CONSTRUCTION

DOCUMENTS

07/06/2026

9525.00

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ELECTRICAL POWER

1/8" = 1'-0"

LEVEL 1 POWER PLAN

1/8" = 1'-0"

ROOF POWER PLAN

N

N

INSTALL NEW LIQUID

TIGHT FLEXIBLE CONDUIT

WITH #12 AWG FROM VFD

TO NEW PUMPS.

# Revision Date

1 Addendum 2 8.06.26

NOT TO SCALE

SB-4 PANEL

REPLACE FUSES IN EXISTING BUCKET

NOT TO SCALE

BE PANEL