ADDENDUM NO. 2 CITY OF SAN ANTONIO CAPITAL ...

SPECIFICATION SECTION 23 21 23 HYDRONIC PUMPS
Added Aurora as an acceptable pump manufacturer in Section 2.1.
SPECIFICATION SECTION 23 25 00
Added Section 1.11.D which indicates current status of building chemical treatment
maintenance.
SPECIFICATION SECTION 23 64 12 WATER COOLED WATER CHILLERS
Added Multistack as an acceptable chiller manufacturer in Section 2.1.
PLAN SHEET ME2.1
Revised keyed note #10 to indicate ventilation fan, VF-1 to remain in its current condition.
Added temporary door patch and eventual door/frame replacement requirements for Service
Bay 101 exterior double doors.
PLAN SHEET M10.1
Added Owner Requested Graphics requirements to Cascaded Graphic User Interface
Requirements.
PLAN SHEET M10.2
Revised bypass valve AI point to indicate a feedback signal type.
PLAN SHEET M10.5
Added end switch to EF-1 control damper (detail #1)
Added duct static pressure high limit switch to detail #2.
Revised water flow meter point type to be Analog Input (condenser water make up and
blowdown meters).
Deleted cooling tower basin water level control requirement (duplication of level control
indicated on sheet M10.2).
Added fan coil unit control diagram (detail #4).
PLAN SHEET E1.2
Added Add Alternate #3 keyed note description. Added key note symbol to AHU-3 controller
per add alternate (install new VFD).
PLAN SHEET E2.1
Added Add Alternate # 2 & 3 keyed note descriptions.
Added relative keyed note symbols to AHU-3 & AHU-4 controllers per add alternate (install
new VFD’s).
Note: Addenda Acknowledgement Form for Addendum 2 is attached herein. This form must be
signed and submitted with the bid package.