BL091_24 Ad5.pdf

August 6, 2024

ADDENDUM #5

BL091-24

HVAC System Maintenance and Repair Services

I. Questions and Answers

Q1. The walk-in coolers and freezers are on the equipment list but not on the bid sheet.

A1. Please see attached revised bid schedule; Section A, Line Item #5.

Q2. The exhaust fans are on the bid sheet but not on the equipment list and count.

A2. Please see attached revised Appendix A. There are a total of 96 exhaust fans.

Q3. Do you want the cooling tower, pumps and motors included on the chiller bid?

A3. Yes, this must be included as it is part of the HVAC system.

Q4. There is a line item for fans and blowers, but there are not any fans and blowers listed on the equipment list.

A4. The line item for fans and blowers has been removed from the revised bid schedule since they are a part of the air handler units.

Q5. Are the AHU’s considered Air Conditioning Systems or are they the fans and blowers?

A5. Please see attached revised bid schedule; Section A, Line Item #1.

II. Revisions

R1. Please remove all references to fans and blowers in the bid invitation. These are covered under the Air Handling Units.

R2. All references to Comprehensive Preventative Maintenance for Air Conditioning Systems revised to Comprehensive

Preventative Maintenance for Air Conditioning Systems and Air Handling Units (AHUs).

R2. Appendix A, Wembley Tower revised to Wimberly Tower.

R3. Bid schedule revised to include Walk-In Coolers and Freezers, Line Item #5, and Energy Recovery Units (ERUs), Line

Item #6.

R3. Page 4 of the bid invitation, 2. Preventative Maintenance Scope and Responsibilities should include:

Comprehensive Preventative Maintenance for Walk-In Freezers and Coolers Unless called for differently by the manufacturer’s instructions, the preventative maintenance program for walk-in coolers and freezers shall include the tasks listed in Revised Appendix C.

Comprehensive Preventative Maintenance for Energy Recovery Units (ERUs) Unless called for differently by the manufacturer’s instructions, the preventative maintenance program for energy recovery units shall include the tasks listed in Revised Appendix C.

This addendum should be signed in the Addendum Acknowledgement section of the Revised Bid Schedule issued in Addendum 3. Since there are only four available spots for addenda, please acknowledge in the margin. Failure to do so may result in your quote being deemed non-responsive.

Thank you, Jenny Coleman Purchasing Associate II

BL091-24 (Addendum #5) PAGE 13R

FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN REJECTION.

REVISED BID SCHEDULE

ITEM

# Description Monthly Charge Annual Charge

(Monthly x 12)

Section A: Comprehensive Preventative Maintenance Services Rates Gwinnett County Detention Center

1. Comprehensive Preventative Maintenance for Air Conditioning Systems and Air Handling Units (AHUs) $ $

2. Comprehensive Preventative Maintenance for Chiller Systems $ $

3. Comprehensive Preventative Maintenance for Boiler Systems $ $

4. Comprehensive Preventative Maintenance for Building Automation Systems

(BAS) $ $

5. Comprehensive Preventative Maintenance for Walk-In Freezers and Coolers $ $

6. Comprehensive Preventative Maintenance for Energy Recovery Units (ERUs) $ $

SECTION A TOTAL $

ITEM

# Description

*Estimated Annual

Quantity **Unit Price Annual Total

Section B: Labor Rates for On-Call Repairs for HVAC Systems & Equipment, Minor HVAC System Replacement & Rental of HVAC Equipment in Emergency Situations

1 Technician – Repair during normal hours Monday – Friday, 6:00 a.m. to 4:00 p.m. 144 Hours $ $

2 Technician –Repair after hours Monday – Friday, After 4:00 PM, Weekends & Holidays 50 Hours $ $

3 Helper – Repair during normal hours Monday – Friday, 6:00 AM to 4:00 PM 290 Hours $ $

4 Helper – Repair after hours Monday – Friday, After 4:00 PM, Weekends & Holidays 50 Hours $ $

BL091-24 (Addendum #5) PAGE 14R

5 Service Call Charge (one-time charge per call) 118 Hours $ $

6 Mechanic - Ductwork Installer during normal hours Monday – Friday, 6:00 a.m. to 4:00 p.m. 115 Hours $ $

7 Mechanic – Ductwork Installer after hours Monday – Friday, after 4:00 p.m., Weekends & Holidays 15 Hours $ $

8 Helper – Ductwork Installer during normal hours Monday – Friday, 6:00 a.m. to 4:00 p.m. 115 Hours $ $

9 Helper – Ductwork Installer after hours Monday – Friday, after 4:00 p.m., Weekends & Holidays 15 Hours $ $

10 State percentage of mark up above cost for repair parts (not to exceed 10%) *** $175,000.00 % $

11 State percentage of mark up above cost for new HVAC equipment (not to exceed 10%) *** $350,000.00 % $

12 State percentage of mark up above cost for rental of HVAC equipment (not to exceed 10%) *** $75,000.00 % $

SECTION B TOTAL $

OVERALL TOTAL (Section A + B) $

* The quantities and dollar amounts listed in Section B are estimates of annual time and costs based on prior experience and are for evaluation purposes only. The quantities and amounts do not represent a guarantee of annual billings.

** Unit prices cannot exceed two decimal points.

*** Example: To calculate percentage markup, multiply $175,000.00 by percentage markup (for example if markup is 10%, calculation would be $175,000.00 x 1.10 = $192,500.00. $192,500.00 would go in the total column for the line item.)

The determination of lowest cost for the On Call Repair section will be based on the total of:

1. Service Classification Hourly Rates multiplied by a projected number of hours at regular time,

2. a projected number of Service Call Charges,

3. the proposed % Mark-Up multiplied by a projected value of parts and equipment.

The projections are estimates of annual time and costs based on prior experience and are for evaluation purposes only. The amounts do not represent a guarantee of annual billings. The calculations from the On-Call Repair projections will be added to the costs for the Preventive Maintenance Services to determine the lowest bidder(s).

CONTRACTOR NAME __________________________________________________________________________________________________

BL091-24 (Addendum #5)

REVISED APPENDIX A

Equipment List

Wimberly Tower

UNIT NAME MODEL # SERIAL #

AHU M-Series AH-T1-1 MCCB030UA0C0UA K05C38456 AHU M-Series AH-T1-2 MCCB025UA0C0UB K05C38447 AHU M-Series AH-T1-3 TSCB010U0C0000 K05C35789 AHU M-Series AH-T1-4 MCCB014UA0C0UA K05C38466 AHU M-Series AH-T1-5 MCCB008UA0C0UB K05C38474 AHU M-Series AH-T1-7 MCCB035UA0C0UA K05C38481 AHU M-Series AH-T1-8 MCCB030UA0C0UB K05C38495 AHU M-Series AH-T1-9 MCCB030UA0C0UA K05C38506

AHU M-Series AH-T1-10 MCCB035UA0C0UA KO5C38537 AHU M-Series AH-T1-11 MCCB030UA0C0UB K05C38601 AHU M-Series AH-T1-12 MCCB030UA0C0UA K05C38648 AHU M-Series AH-T1-13 MCCB035UA0C0UA K05C38657 AHU M-Series AH-T1-14 MCCB030UA0C0UA K05C38673 AHU M-Series AH-T1-15 MCCB030UA0C0UA K05C38693

AHU-SB-01(Lobby) Trane TSCB021U0C0000 K05K30580A AHU T-Series AHU-BB1 TSCB012U0C0000 K05C35797 AHU T-Series AHU-BB2 TSCB021U0C0000 KO5C35805 AHU T-Series AHU-BB3 TSCB006U0C0000 KO5C35814 AHU T-Series AHU-CC3 TSCB012U0C0000 K05C35829 AHU T-Series AHU-DD2 TSCB030U0C0000 K05D48466

Trane RTU (IT Rm.) THC102A4RAO 816100398L Trane RTU (IT Rm.) THC102E3RAO 103712033L

ERU-1 ANNEX AIR ERP-E-20-HP 0805-01-070805

ERU-2 ANNEX AIR ERP-E-20-HP 0805-02-060805

ERU-3 ANNEX AIR ERP-E-20-HP 0805-03-070805

Carrier RTU Admin Data 50TFF006- 501GA 2001G21698 Various Exhaust Fans

Plunkett Building/Sheriff Building

AHU #1 (A-pod) McQuayLML117EH 3VB00435-00 AHU #2 (E-pod) LML117EH 3VB00435-00 AHU #3 (B-pod) LML117EH 3VB00486-00 AHU #4 (F-pod) LML117EH 3VB00428-00 AHU #5 (C-pod) LML117EH 3VB00433-00 AHU #6 (G-pod) LML117EH 3VB00437-00 AHU #7 (D-pod) LML117EH 3VB00430-00

AHU #8 (ZZ-med) LSL114DH 3UM00662-04 AHU #9 (H-pod) LML114EH 3VB00250-00

AHU #10 (N-pod) LML117EH 3VB00434-00 AHU #11(K-pod) LML117EH 3VB00438-00 AHU #12(J-pod) LML117EH 3VB00254-00

AHU #13(Law library) LSL111CH 3VM00663-06 AHU #14(L-pod) LML117EH 3VB00438-00 AHU #15(I-pod) LML117EH 3VB00203-00

AHU #16 (2ZZ247) Intake-Holding LML114EH 3VB00251-00

AHU #17 (Central) LSL122DH 3UM00664-04 AHU #18 (DD1 Courts 1,2) LSL114DH 3UM00665-04

AHU #19 (2ZZ238) EE LSL108CH 3UM00666-06

AHU #20 (Shop) Trane No Tag No Tag

AHU#21 (M-pod) LSL117DH 3UM00667-04 AHU #22(A, B, E, F Corridor) LYF108CH 3VB00255-06

AHU#23 (A-E MECH) LSL104CH 3UM00669-06

AHU #24 (D-H mech) LSL111CH 3VD00054-06 AHU #25 (G-C mech) LSL106CH 3UM00670-06 AHU #26 (K-N mech) LSL111CH 3VD00055-06

AHU #27 (J-mech) LSL106CH 3VD00056-06 AHU #28 (I, L Corridor) LSL108CH 3UM00679-06

AHU #29 (L-I mech) LSL104CH 3UM00680-06

AHU #30 (2FF204) LSL106CH 3UM00641-06

AHU #31 (Connector Corridor) LSL104CH 3UM00373-06 AHU #32 (2 Main Back Corridor) LSL108CH 3UM00674-06 AHU #33 (1 Main Back Corridor) LSL103 CH 3UM00675-06 AHU #34 (2 Main Front Corridor) LSL104CH 3VA00037-06

AHU #35 (MAINT hall) LSL106CH 3UM00676-06 AHU #36 (Cart Staging-Tray Up) LSL 106CH 3UM00672-06

AHU #37 (SB FL 1) LSL128DH 3UMOO677-04

AHU #38 (SB FL 2) LSL128DH 3UMOO678-04

AHU #39 (Inmate Dining) Trane CSAA008UBL00 K17J74430 AHU #40 (Fl 1 Main Front Corridor) LSL104CH 3VB00431-06

AHU #41 (M Pod) LSL103CH 3VB00432-06 AHU #42 (Kitchen)Trane CSAA008UBL00 K16H61463

AHU #43(KITCHEN)Trane CSAA017UBL00 K15E39534 BC-T1-701 2 Mezz RS Elect. Trane

BC-T1-702 2 Mezz Right side. Trane BC-T1-101 In Medical By ISO. Trane BC-T1-503 Water Heater Rm. Trane BC-T1-504 Pmp. Rm. GG109. Trane

BC-T1-S8 1 Mezz Over Medical.

Trane

FC-T1-301 Sgt. Office 1st. Fl. Trane FC-T1-501In Laundry Office. Trane

BC-T1-301 Secured Elec. 1st. Fl.

BC-T1-302 Elec. Rm. By Electron.

BC-T1-303 Elec. Rm. 1st. Fl. Trane BC-T1-304 TWR Kitchen. Trane

BC-T1-501 Laundry Stock Rm. Trane BC-T1-502 1 Mezz Fire Alarm Rm.

BC-T1-S6 Back of Laundry Stairs.

BC-T1-S7 Between B&C Pods. Trane BC-T1-1001 3 Mezz Right side.

BC-T1-1002 3 Mezz Right Side.

Various Exhaust Fans

CHILLER PLANT

CHILLER #1 (3/6/2014) CVHF570 Trane L14E02491 CHILLER #2 (5/5/2015) CVHF570 Trane L15D02386

CHILLER #3 (12/1/2023) CVHF760 Trane L23C00487 BOILER #1Unilux ZF700W A2296 BOILER #2 Unilux ZF700W A2297 BOILER #3 Unilux ZF1000W A3800

COOLING TOWER 1 Marley NC 101236657-A1-NC

8411QLN2GGF

COOLING TOWER 2 Marley NC 10123657-A2-NC

84110LN2GGF 2016

COOLING TOWER 3 Marley 10017081-A1-NC8411UIGGF COOLING TOWER PUMP#100 Taco 14 HL-1 TX20399-1

Motor NIDEC FL97 X057646616 COOLING TOWER PUMP #101 Hydroflo 14HL-1 TX35853

Motor NIDEC JC68 E 12 7840624-0002 M

COOLONG TOWER PUMP #3 Taco 14HL-1 TX20404-2 Motor NIDEC 16703461-100 X11 16703461-001

COOLING TOWER PUMP#4 Taco 14HL-1 TX2004-1 Motor NIDEC 16703461-100 11X16703461-0001

Mini Split Tower Elevator Split System Twr Elevator Split System Twr Elevator Split System Twr Split System by AHU-CC3

Split System on Plunket Roof

BUILDING AUTOMATION SYSTEMS (BAS) COVERED EQUIPMENT LIST

Equipment

Qty

Manufacturer

Model Number

Serial Number

Asset Tag

Tracer Summit Building Management

1 Trane BMTX001AAA E05F71720 BCU#3

Service Description Quantity Per Year System Analysis and Review (Service 1) 12 AHU Controls Support (Service 2) 12 Chilled Water System Controls Support (Service 3) 12 Hot Water System Controls Support (Service 4) 12 Operator Coaching (Service 5) 12

Equipment Qty Manufacturer Model Number Serial Number Asset Tag Site Level Activities 1 Trane MONITORING

Service Description Quantity Per Year Update Active Alarm Monitoring Processes (Service 6) 3

Equipment Qty Manufacturer Model Number Serial Number Asset Tag

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63790

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63791

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63792

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63793

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63796

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63797

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63798

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63799

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63801

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63802

Programmable

49500500

E13K63803

Programmable Controller (BMTM)

1 Trane 49500500 E13K63804

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63805

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E13K63807

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31200

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31201

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31202

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31205

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31206

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31210

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31212

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31213

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31215

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31216

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31217

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14B31218

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30081

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30082

MP581

Programmable

1 Trane 49500500 E14E30083

Controller (BMTM)

1 Trane 49500500 E14E30084

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30089

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30090

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30091

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30093

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30095

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30096

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30098

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30100

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30116

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30117

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30118

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30119

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30120

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30122

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30123

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30126

MP581

Programmable Controller (BMTM)

1 Trane 49500500 E14E30127

MP581

Programmable

1 Trane 49500500 E14E30128

Controller (BMTM)

1 Trane BMTM000AAD E13K42073

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42074

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42075

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42076

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42077

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42078

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42079

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42080

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42082

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42083

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42084

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42085

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42086

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42087

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42088

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42089

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E13K42090

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E14B41947

MP581

Programmable

1 Trane BMTM000AAD E14B41948

Controller (BMTM)

1 Trane BMTM000AAD E14B41954

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E14B41955

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E14F44841

MP581

Programmable Controller (BMTM)

1 Trane BMTM000AAD E14F44842

Tracer Summit Building Management

1 Trane BMTX001AAC E13K42050

Tracer Summit Building Management

1 Trane BMTX001AAC E13K42051

Tracer Summit Building Management

1 Trane BMTX001AAC E13K42052

System Control Units 1 Trane MP-580 50100885 System Control Units 1 Trane MP-580 NS-3703837

CUSTOMER SERVICE FLOWS FOR COVERED EQUIPMENT

The following Customer Service Flows provide additional service description detail for Covered Equipment. Note: There may be differences per the agreement in the work being performed between sites and the equipment on those sites. This section clarifies differences in the work being performed between sites and the equipment on those sites:

Service 1: System Analysis and Review

• Operator Workstation Inspection

• System Controller Inspection

• Verify System Software Programming

• System Back-Up

• Customer Review - 30 Minutes

• Software Service Pack Update (Per Workstation and/or BCU)

Service 2: AHU Controls Support

• Connect Service Tool

• System Controller Inspection

• Verify System Software Programming

• Sequence of Operation Verification

• Loop Tuning

• Review System Results

• Disconnect Service Tool

Service 3: Chilled Water System Controls Support

• Connect Service Tool

• System Controller Inspection

• Verify System Software Programming

• Sequence of Operation Verification

• Loop Tuning

Service 4: Hot Water System Controls Support

• Connect Service Tool

• System Controller Inspection

• Verify System Software Programming

• Sequence of Operation Verification

• Loop Tuning

Service 5: Operator Coaching

• Operator Coaching

Service 6: Update Active Alarm Monitoring Processes

• Alarms Monitoring.

• Calibrate Alarm Monitor

REVISED APPENDIX C

COMPREHENSIVE PREVENTATIVE

MAINTENANCE FOR AIR CONDITIONING

SYSTEMS AND AIR HANDLING UNITS (AHUs)

IN-HOUSE SEMI-ANNUAL ON REQUEST

1. Install gauges and check operating pressures X

2. Check voltage and amperage to all motors X

3. Check air temperature drop across evaporator X

4. Check all adequate refrigerant charges X

5. Check for refrigerant leaks X

6. Lubricate all moving parts X

7. Check belts and adjust the tension X

8. Replace filters X

9. Check pressure switch and cut-out settings X

10. Check electrical lock-out circuits X

11. Check starting contactor contacts X

12. Check all wiring and connections X

13. Check and adjust thermostats for proper calibration and operation X

14. Check air temperature across condenser X

15. Turn exposed dampers to cooling, if marked X

16. Check and flush condensate drain X

17. Visually check ductwork X

18. Remove dust, soot, rust, etc., from furnace blower X

19. Check Delta T across evaporator coil, clean if less than sixteen (16) degrees. X

20. Operate air conditioning system through normal cycle, make any necessary adjustments

X

21. Clean evaporator drain pan X

22. Clear condensate drain and add cleaning agent to drain line to prevent unnecessary clogging

X

REVISED APPENDIX C

COMPREHENSIVE PREVENTATIVE

MAINTENANCE FOR CHILLER

SYSTEMS

QUARTELY SEMI-ANNUAL ANNUAL ON REQUEST

Compressor A. Motor

1. Ampere Balance (within 10%) X

2. Terminal check (tight connection; clean) X

3. Motor cooling (check temperature) X

B. Lubrication System

1. Oil cooler strainer(water) X

2. Oil cooler solenoid operation X

3. Oil analysis X

4. Oil filter change X C. Vane Operation - Compressor

Loads

1. Operate manual switch

2. Record motor amps D. Vane Operation - Compressor unloads

1. Operate manual switch X

2. Record motor amp. X E. Internal Compressor Check X

Controls A. Operating Controls

1. Check LRT settings and operation X

2. Check vane control setting and operation X

3. Verify motor load limit control X

4. Verify load balance operation X

5. Check oil pump contactor X

6. Check soft-start settings and function X

7. Check chilled water reset settings and function

OSA= 75 deg F/ LCHW= 44 deg F OSA= 65 deg F/ LCHW= 55 deg F

X

8. Check chiller lockout Setpoint = 55 deg F X

B. Protective controls: Test operation of X

1. Alarm relay X

2. Pump interlock X

3. Hot and cold oil temperature switches X

4. Surge guard relays X

5. High- and low-pressure switch X

6. High suction temperature switches X

7. High discharge temperature switch X

8. Low pressure override switch X

9. Oil pump pressure differential switch X

10. Oil pump time delay switch X

11. System monitor timer X

12. Vane closed switch X

Condenser A. Water Quality (test) X B. Condenser Tube (clean) X C. Eddy Current Test-Tube Wall

Thickness X

D. Seasonal Protection X E. Check Setpoints

Cond. Water = 75 deg. F Bypass = 60 deg. F

X

Evaporator A. Water Quality (test) X B. Evaporator Tubes (clean as required) X

C. Eddy Current Test-Tube Wall Thickness X

D. Seasonal Protection X Expansion Valves

A. Performance Evaluation (superheat control) X

Compressor-Chiller Unit A. Leak test

1. Compressor fittings and terminal X

2. Piping fittings X

3. Oil pump joints and fittings X

4. Vessel relief valves X B. Vibration Isolation Test X

Starter(s) A. Contactors (Examine hardware and operation) X

B. Overload Setting and Trip (Verify) X

C. Electrical Connections (Test) X D. Pump Down Control (Verify operation) X

Optional Controls A. Hot Gas Bypass Controls

(Verify operation) X

B. Liquid Injection Controls (Verify operation) X

C. Pump Down Control (Verify operation) X

APPENDIX C

COMPREHENSIVE PREVENTATIVE MAINTENANCE FOR BOILER

SYSTEMS

SEMI-ANNUAL

1. Inspect gas train, oil system, burner, and control panel.

Check for debris and ensure integrity of all connection points; refer to burner manual where needed

X

2. If inspection shows soot accumulation which cannot be removed by gas firing alone, clean the fireside surfaces. X

3. Clean breeching X

4. Clean waterside surfaces X

5. Check oil storage tank and oil pumps X

6. Check condensate drain X

7. Analyze combustion X

8. Conduct a gas valve leak test X

9. Test relief valve(s) X

10. Check combustion air fan for vibrations, dirt accumulation X

11. Clean and adjust pilot assembly X

12. Inspect burner refractory X

13. Check air vent X

14. Replace handhole/manway gaskets X

15. Test gas pressure switches X

16. Check motor operation X

COMPREHENSIVE PREVENTIVE MAINTENANCE FOR FREEZERS

AND COOLERS

SEMI-ANNUAL

1. Check level of refrigerant X

2. Check Amp draw on compressors, fan motors and defrost heaters X

3. Check floor heaters in freezers if equipped X

4. Check drain heat tape X

5. Look for signs of corrosion on fins, cabinet, copper tubing and solder joints. X

6. Look for excessive or unusual vibration for fan blades or sheet metal panels when in operation. Identify fan cell(s) causing vibration and check motor and blade carefully.

X

7. Look for oil stains on headers, return bends, and coil fins.

Check any suspect areas with an electronic leak detector.

X

8. Check drain pan to ensure that drain is clear of debris, obstructions or ice buildup and is free draining. X

9. Check condition of moisture indicator/sight glass in the sight glass if so equipped. Replace liquid line drier if there is indication of slight presence of moisture.

Replace refrigerant, oil and drier if moisture concentration is indicated to be high.

10. Check moisture indicator/sight glass for flash gas. If found check entire system for refrigerant leaks and add refrigerant as needed after repairing any leaks. Check condition of condenser. Look for accumulation of dirt and debris (clean as required).

X

11. Flush and rinse coil until no residue remains. Pay close attention to drain pan, drain line and trap. X

12. Check that each fan rotates freely and quietly. X

13. Check all fans set screws and tighten if needed. X

14. Check all fan blades for signs of stress or wear. X

15. Verify that all fan motors are securely fastened to the motor rail. Lubricate motors if applicable. X

16. Visually inspect all wiring for wear, kinks, bare areas, and discoloration. X

17. Verify that all electrical and ground connections are secure, tighten if necessary. X

18. Check all door seals. X

19. Check operation/calibration of all fan cycle and defrost controls when used. X

20. Look for abnormal accumulation of ice patterns and adjust defrost cycles accordingly. Compare actual defrost heater amp draw against unit data plate.

X

21. Check unit cooler superheat and compare reading for your specific application. X

22. Visually inspect coil for even distribution. X

23. Check operation of demand cooling, liquid injection, or unloaders if so equipped. X

24. Check pressure drop across all filters and driers. X

25. Verify that superheat at the compressor conforms to specification. Check pressure and safety control settings and verify proper operation.

COMPREHENSIVE PREVENTIVE MAINTENANCE FOR ENERGY

RECOVERY UNITS (ERUs)

SEMI-ANNUAL ON REQUEST

1. Inspect unit for unusual noise or vibration. X

2. Inspect and clean housing. X

3. Check belts and adjust tension. X

4. Lubricate all moving parts. X

5. Inspect fan and motor for proper alignment. X

6. Clean entire unit, motor, and fan assembly. X

7. Clean intake and exhaust grills, louvers, and bird/insect screens. X

8. Check motor load amps. X

9. Inspect fan blades and moving parts for excessive wear. X

10. Inspect all wiring for deterioration. X

11. Check tightness of electrical connections. X

12. Inspect electrical contact surfaces. X

13. Inspect weather hood and screens. X

14. Inspect and clean exchanger cores. X