HomeMy WebLinkAboutPR 22498: REPAIRS TO HVAC SYSTEM FOR EDC l
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PORT*ARTHEJR
O\OMIC I1F:\EI.OPMFNT CORPORATION
INTEROFFICE MEMORANDUAM
Date: April 7, 2022
To: The Honorable Mayor and City Council
Through: Ron Burton, City Manager
From: Jessica Carpenter, PAEDC CEOC(\
RE: P.R. 22498-Consider and discuss the repair, replacement of parts and balancing of
the HVAC system at 501 Procter Street by Industrial and Commercial Mechanical
in an amount not to exceed $49,888.00. Funds available in account number 120-
80-625-5312-00-00-000.
Introduction:
There is a need for HVAC repair and replacement with regards to the HVAC system at the
building located at 501 Procter Street.
Background:
The City of Port Arthur Section 4A Economic Development Corporation has expended in
excess of$47,000 on HVAC system repairs during the fiscal years of 2021 and 2022. The
corporation receives numerous complaints from tenants of 501 Procter Street regarding the
malfunction of the system and its inability to properly heat or cool their respective areas,
and has had to make rent concessions for tenants during these times of malfunction. A
complete and thorough assessment of the HVAC system was completed by Industrial and
Commercial Mechanical(hereinafter,ICM)of Beaumont,TX. ICM is a Buy Board vendor
registered with the City of Port Arthur.
Budget Impact:
The budget impact for this item is $49,888.00. Funds are available in EDC Account No. 120-80-625-
5312-00-00-000.
Recommendation:
It is recommended that the PAEDC Board of Directors approve the quote in the amount of$49,888.00 to
Industrial&Commercial Mechanical to make the necessary repairs and replacements to the HVAC
system at 501 Procter Street.
P.R. No.22498
04/07/2022 JB
RESOLUTION NO.
A RESOLUTION AUTHORIZING REPAIRS AND REPLACEMENTS TO
THE HVAC SYSTEM AT 501 PROCTER STREET (PORT ARTHUR
ECONOMIC DEVELOPMENT CORPORATION) IN AN AMOUNT NOT
TO EXCEED $49,888.00 TO INDUSTRIAL AND COMMERCIAL
MECHANICAL. FUNDS AVAILABLE IN EDC ACCOUNT NUMBER 120-
80-625-5312-00-00-000.
WHEREAS,the City of Port Arthur Section 4A Economic Development Corporation has
spent $48,239.30 on HVAC system repairs and replacements at 501 Procter Street during fiscal
years 2021 and 2022; and
WHEREAS, the City of Port Arthur Section A Economic Development Corporation
requested that Industrial and Commercial Mechanical of Beaumont, Texas, a Buy Board vendor
registered with the City of Port Arthur,perform a complete assessment of the HVAC system at the
building located at 501 Procter Street; and
WHEREAS, Industrial and Commercial Mechanical found several issues that require
replacement and repair throughout the HVAC system as attached hereto in Exhibit"A"; and
WHEREAS, the City of Port Arthur Section 4A Economic Development Corporation
Board of Directors approved this purchase at a cost not to exceed $49,888.00 at its regular board
meeting on April 4, 2022.
NOW,THEREFORE,BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY
OF PORT ARTHUR:
Section 1. That the facts and opinions in the preamble are true and correct.
Section 2. That the City Council approves the repairs and replacements to the HVAC
system at 501 Procter Street at a cost not to exceed $49,888.00 by Industrial Commercial and
Mechanical.
Section 3. That a copy of the caption of this Resolution be spread upon the Minutes of the
City Council.
READ,ADOPTED AND APPROVED on this day of A.D., 2022,
at a Meeting of the City Council of the City of Port Arthur, Texas,by the following vote:
AYES:
Mayor
Councilmembers
NOES:
Thurman Bartie, Mayor
ATTEST:
Sherri Bellard, City Secretary
APPROVED:
'-=c e.af p,t/1-I-Q
Jessi Carpenter,CEO
Page 2
APPROVED AS TO FORM:
rank arz EDC Attorney
APPROVED AS TO FORM:
Valecia R. Tizeno,City A rney
APPROVED AS TO AVAILABILITY OF FUNDS:
Kandy Danie nterim Finance Director
Page
EXHIBIT "A"
Page 4
'3
Industrial and Commercial
Mechanical
TACLA23943C
I I= INA 4445 Westpark Avenue
Beaumont,TX 77705
Phone(409)842-3737
Fax (409)842-3738
March 31,2022
Port Arthur EDC
501 Procter St.Ste.100
Port Arthur,TX 77640
Attention: Jessica Carpenter
Reference: HVAC Equipment/BAS Survey
Quote: 001-JA22
Dear Jessica,
Industrial&Commercial Mechanical LLC performed a complete building HVAC survey. After surveying the building,
equipment and blueprints of engineer's design below are ICM's findings and recommendations to better control
Temperature/Humidity throughout the building.A list of necessary repairs is included below to bring the current
equipment operating at 100%capacity.
Description of equipment failures and building automation control issues:
1. First impression and foremost,the rooftop unit is extremely unsafe to perform service work.The unit sits at
an elevated level above roof level that puts the unit controller about 8'feet off the ground.The steel
structure under unit eliminates a ladder to be firmly secured down to safely perform electrical work.This
causes the service technician having to stand on two cross bars to see the controller,which is very unsafe,
due to the exposed 3phase 460v in panel.This has also created a problem in the past securing door latches
to eliminate water from entering unit electrical panels.The upper door latches were found unlatched
causing water to enter and electrical to get wet plus has destroyed all unit literature for troubleshooting
equipment.
2. The Daikin roof top unit(Main unit that servers entire building)has an Alarm log history of past 50 alarms.
The controller is only capable of storing the most recent 50 alarms.The 50 alarms are mostly identical to
each other(High-Pressure alarm Circuit 1,and High-Pressure alarm Circuit 2).The keep repeating for a total
of 25ea.to create log history of 50 most recent alarms.The unit will completely shut down when the
following occurs.Circuit 1 High-Pressure alarm(Circuit 1 shuts down)and Circuit 2 High-Pressure alarm
(Circuit 2 shuts down),now the entire unit is down,because these alarms are manually reset.
Mathematically,it takes(2)alarms to generate(1)service call(50 alarms divided by 2=25 service calls).In
summary there were a total of 25 High-Pressure alarms(1)for each circuit totaling 50 alarms and unit
completely down 25times.High Pressure alarms are normally caused by Condenser Fan Motors not running
and/or dirty condenser coils not allowing the high pressure freon to be cooled.It does not seem the issue
has been resolved to prevent these alarms,and unit is just being reset to get back up and running until both
circuits shut down again.After further investigation of Main Rooftop unit,see below further repairs that are
deemed necessary to get the unit operating at 25%capacity to 100%.
• Bad Main board with no 24 DC volt output for monitoring duct pressure to control blower
speed.
• Fan motor CFM21 and contactor M21 bad and needing replaced.
• Fan contactor for CFM22 chattering due to faulty fan pressure cycling switch.
• Main board D08 fan control circuit 2 faulty,will not send 120v output signal.
• Duct pressure setpoint at 0.10 with no tube connected at duct sensor and supply air duct.
• Faulty Fan cycling control switch circuit#1.
• Faulty Fan cycling control switch circuit#2.
• Bad high pressure switch circuit#1
• Improper equipment configuration for the building application.
TACLA 23943C Regulated by the Texas Department of Licensing and Regulation
PO Box 12157*Austin,TX 78711*1-800-803-9202,512-463-6599
• Circuit#1 was found with a cracked refrigerant discharge line while onsite and no freon in
circuit.ICM repaired leak and added a temporary positive pressure charge to eliminate any
moisture from entering system.
• Main power provided by Entergy will vairy causing improper voltage to unit causing it to shut
down.This has been an ongoing issue with the Port Arthur City Hall,Port Arthur Health
Department,and Lamar Port Arthur College.This is not a unit failure but will have to be
manually reset in the event of improper incoming voltage.
3. The Delta computerized building control called"Flash",is dependent of the Microsoft software and is older
than Microsoft causing the end user unable to see graphics(Temperature Settings,Equipment Alarms,etc.).
The Delta Controller is connected to the Ethernet Server of the building and has(2)current alarms on the
A/C System,and no one is aware of unit failures plus failure notifications are not being sent out to an email
address,stating the unit is in failure mode. The Delta computerized system is currently working but tells the
end user nothing about the system until the space temperature is obviously out of range and a service call is
generated.The Delta computerized controller states(5)Variable Air Volume units(VAV Boxes)have either
low or no air flow.The VAV Boxes and/or troubled areas cannot be determined because the controller has
no graphics giving detailed information as to where the units with issues are located throughout the
building.
4. Equipment scheduling is not adequate per building accommodations. According to the building employees
the control company(Team Solution)that has been hired to make repairs,set schedules,etc.to the Delta
computerized system has a schedule set for occupied mode and unoccupied mode to save money.Example:
Normal working hours OCCUPIED MODE temperature setpoint 70*and non-working hours UNOCCUPIED
MODE temperature setpoint 78*. ICM noticed Equipment alarms that were generated at 11pm on 3-23-22
and past alarms at 2am through early morning hours over the past 2 months.ICM spoke with Team Solution
(Robert Nowlin)regarding scheduling modes.It was found that the building is scheduled to run 24/7
Monday through Friday,but the system has been forced to manual mode occupied meaning that the unit is
configured to run 24/7 year-round.
5. While performing survey ICM noticed the building needs air balancing,which has been previously quoted by
Coastal Air Balance.ICM will be able to perform a complete building air balance setting parameters to the
engineered mechanical specifications.
Description of procedures and miscellaneous items to be repaired/replaced:
o Replace main Daikin rooftop controller,reconfigure to match building applications.Lead time from
factory 3weeks.
o Rewire condenser fan logics until the new main controller arrives to have full A/C capacity.
o Install circuit 1&2 high pressure switches with associated manual reset option.
o Install circuit 1&2 fan cycling switches to a heavy-duty style to handle higher amperage.
o Pressure check circuit 1 after leak was repaired and charge unit to factory specs.
o Install tubing to connect between supply duct and duct sensor.This will allow the controller to monitor
the building demand and adjust blower speed accordingly.
o Install an external 24vdc power supply for the controller to read duct pressure.
o Perform Air Balance throughout the entire building.
o Verify proper operation of HVAC Equipment once all items have been updated and notify customer of any
findings outside of the above work to be performed.
The proposed price for providing the above scope is:
Price:$9,988.00(Nine Thousand Nine Hundred Eighty-Eight dollars)
Air Balance Pricing to be added to above pricing:$8,500.00(Eight Thousand Five Hundred dollars)
Option:Install Carrier I-Vu Building Automation Controls:
ICM proposes to remove the existing Delta HVAC Control System,which is Microsoft dependent software and replace
with Carrier I-Vu HVAC control system.
The Task shall include:
o Install quantity of 17 VAV Controllers(OPN-VAVB1)to control 17 VAV boxes.
o Install quantity of 17 Zone Sensors(ZSP-CAR)to tie into the 17 VAV Controllers.
o Perform Air Calibration on 17 VAV boxes.
o Install quantity 1(UC Open Programmable Controller)to control 1 main Rooftop unit including duct
pressure sensor,return and supply air sensors.The controller shall interlock with the building gas
monitoring digital inputs for equipment shutdown.
TACLA 23943C-Regulated by the Texas Department of Licensing and Regulation
PO Box 12157*Austin,TX 78711*1-800-803-9202,512-463-6599
o Install quantity 1(I-VU WEB Controller)for human interface.
o Install quantity 1(I-VU Router).
o Configure employee email notifications for equipment failure status.
o Label all wiring associated with the Building Automation System.
o Provide 1 training class for end users.
The proposed price for I-VU Building Automation Control System is:
Price:$31,400.00(Thirty-One Thousand Four Hundred dollars)
Items not included in Proposed Work:
Installation of expanded metal across unit foundation support to perform safe work.
Any changes or modifications not included as part of proposal,or the proposed scope of work.
Any applicable taxes are excluded and will be billed extra. Prices are firm for thirty(30)days. Work to be performed
on straight time basis and will begin upon receipt of a signed Repair Service Agreement or mutually agreed Purchase
Order referencing the subject proposal.
Thank you for your request for this proposal. We would appreciate the opportunity to provide these services and as
always,we certainly appreciate your valuable business.
Respectfully,
Astin Aycock Accepted By: Date:
Vice President
Office:409-842-3737
jaycock@ic-mechanical.com
Industrial&Commercial Mechanical
TACLA 23943C Regulated by the Texas Department of Licensing and Regulation
PO Box 12157*Austin,TX 78711*1-800-803-9202,512-463-6599