City of Alton-Recreation Center Energy Efficiency Retrofit-Addendum No. 1
| Location: | Texas |
|---|---|
| Posted: | Mar 3, 2026 |
| Due: | Mar 11, 2026 |
| Agency: | Alton city |
| Type of Government: | State & Local |
| Category: |
|
| Publication URL: | To access bid details, please log in. |
| Description | Opening Date/Time | Closing Date/Time |
|
City of Alton-Recreation Center Energy Efficiency Retrofit-Addendum No. 1 |
February 13, 2026 8:00 AM |
March 11, 2026 3:00 PM |
Attachment Preview
Addendum Number 1
To:
From:
Email:
Subject:
Bidders
Leroy Martinez, PE
lmartinez@halff.com
Addendum No. 1
Date:
AVO:
Project:
2/27/2026
60585.001
Alton Recreation Center
The following is a list of changes made to the plans and specifications. The changes are outlined by item
number, as well as plan sheet number.
GENERAL
ITEM 1. Building will not have a building automation system (BAS). All units are to function with stand-
alone controls
DRAWINGS
ITEM 1. M1.01
a. Removed Existing CO2 monitors from drawings
ITEM 2. M2.01
a. Multi-Zone Split DX Unit Schedule Updated
ITEM 3. M3.01
a. Detail 3 Updated
ITEM 4. M4.01
a. Control Sheet Updated
ITEM 5. M4.02
a. Control Sheet Updated
ITEM 6. M4.03
a. Control Sheet Updated
ITEM 7. M4.04
a. Control Sheet Updated
ITEM 8. M4.05
a. Control Sheet Updated
Attachments: Document outlined in narrative
2
KEY NOTES:
GENERAL NOTES:
01 MECHANICAL PLAN
SCALE: 1/8" = 1'-0"
Project No.:
Issued:
Drawn By:
Checked By:
Scale:
Sheet Title
60585.001
10-03-2025
MH
LM
AS NOTED
MECHANICAL HVAC PLAN
M1.01
Sheet Number
˚
˚
˚
˚
˚
˚
˚
SINGLE ZONE VAV PACKAGED DX ROOFTOP UNIT SCHEDULE (ALTERNATE BID #2)
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˚
˚
˚
˚
˚
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MULTI-ZONE SPLIT DX UNIT SCHEDULE (ALTERNATE BID #1)
SINGLE ZONE VAV PACKAGED DX ROOFTOP UNIT SCHEDULE (ALTERNATE BID #3)
˚
˚
˚
˚
˚
˚
˚
Project No.:
Issued:
Drawn By:
Checked By:
Scale:
Sheet Title
60585.001
10-03-2025
MH
LM
AS NOTED
MECHANICAL SCHEDULES I
M2.01
Sheet Number
09 NTAKE HOOD
N.T.S.
06 03 CONDENSING UNIT MOUNTING DETAIL
N.T.S.
SUSPENDED AIR HANLDING UNIT
N.T.S.
NOTES:
10 OFFSET CURB ADAPTER
N.T.S.
NOTES:
08 EQUIPMENT PAD DETAIL
N.T.S.
ALUMINUM JACKETING ON
07 EXPOSED PIPING
N.T.S.
05 ROOF TOP UNIT MOUNTING DETAIL
N.T.S.
LOW VELOCITY DUCT
WITH ACOUSTICAL LINING
RECTANGULAR TO ROUND
CONNECTION OR ROUND
REDUCER AS SHOWN
SUPPLY AIR MAIN
02 VAV BOX SUSPENSION
N.T.S.
VAV BOX
INTERNALLY INSULATED
PROVIDE METAL
LINER IF SPECIFIED
MIN. 3 DUCT DIA.
RIGID DUCT
MATCH ROUND TO INLET
UL LISTED FLEX CONNECTION
MECHANICALLY
FASTEN AND SEAL
DUCT CONNECTION
04 VAV BOX CONNECTION
N.T.S.
01 FLEXIBLE CONNECTION
N.T.S.
Project No.:
Issued:
Drawn By:
Checked By:
Scale:
Sheet Title
60585.001
10-03-2025
MH
LM
AS NOTED
MECHANICAL DETAILS
M3.01
Sheet Number
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