Addendum 4
118 KB Posted
- Solicitation number
- 22-FAC-016
- Issued by
- Douglas County, Georgia
About this file
This is Addendum No. 4, dated June 20, 2022, issued by Andrews, Hammock & Powell, Inc. for the Dougherty County Board of Education in Albany, Georgia, modifying the original specifications for the Morningside Elementary School HVAC & Plumbing Upgrades project dated May 20, 2022. The addendum revises Section 230900 (Instrumentation and Control for HVAC) and establishes specific requirements for thermostat and temperature sensor installation heights, locking covers for common areas, and monitoring protocols. All bidders must acknowledge receipt of this addendum on the Bid Price Form to avoid disqualification.
The specification changes require newly installed thermostats and sensors in new locations to be mounted 4 feet 6 inches above finished floor unless otherwise noted, while existing installations may remain at current heights. Thermostats in classrooms shall not have locking metal covers, but those in common spaces (corridors, cafeterias, media centers) must be behind locking covers unless otherwise specified. Additional requirements include installation of two space temperature sensors in the kitchen's walk-in cooler and freezer with alarm activation if temperature rises above setpoint for more than five minutes, and DDC system monitoring of data rooms and other areas served by standalone ductless split systems and PTACs with alarm signals sent to the owner if temperatures exceed established setpoints. All thermostat setpoints, classroom deadbands, and cover/cage types must be verified with Dougherty County Board of Education Facilities.
Text of this file
Morningside Elementary School May 20, 2022 HVAC & Plumbing Upgrades Dougherty County Board of Education Albany, Georgia
Addendum No. 4- Page 1 of 1
ANDREWS, HAMMOCK & POWELL, INC. 250 CHARTER LANE, SUITE 100, MACON, GA 31210
ADDENDUM NUMBER: FOUR DATED: June 20, 2022
To: All contract bidders of record.
This addendum forms a part of the Contract Documents and modifies the original Specifications and Drawings dated May 20, 2022, as noted below. Acknowledge receipt of this Addendum in the space provided on the Bid Price Form; failure to do so may subject bidder to disqualification.
CHANGES TO SPECIFICATIONS
1. SECTION 230900 INSTRUMENTATION AND CONTROL FOR HVAC
A. On page 230900-4, delete paragraph 2.3.E. in its entirety and replace with the following:
“E. Thermostat and Temperature Sensors: All newly installed thermostats/sensors installed in new locations shall be installed on wall at 4'-6" above finished floor, unless noted otherwise. All new thermostats/sensors installed at existing locations utilizing existing junction boxes and conduit may remain at existing height.
Thermostats/sensors may be provided by either the controls contractor or the equipment manufacturer. Thermostats serving classrooms shall not have locking metal covers/cages. Thermostats installed in commons spaces (corridors, cafeterias, media centers, etc.) shall be installed behind locking metal covers/cages unless noted otherwise and as shown on drawings. Verify cover/cage type(s), all setpoints and classroom setpoint deadband with Dougherty County BOE Facilities.”
B. On page 230900-16, paragraph 3.12.O., add the following paragraphs:
“3. Freezer and Cooler Temperature: Provide two (2) space temperature sensors in kitchen’s walk-in cooler and freezer. Provide alarm if space temperature rises above setpoint for more than five (5) minutes.
4. MDF and IDF Space Temperature Monitoring: DDC system shall monitor space temperature in data rooms and other areas served by standalone (not VRF) ductless split systems & PTACs. DDC system shall send alarm signal to Owner if space temperature rises above Owner’s setpoint.”
END OF ADDENDUM #4
| ANDREWS, HAMMOCK & POWELL, INC. 250 CHARTER LANE, SUITE 100, MACON, GA 31210 |
| ADDENDUM NUMBER: FOUR DATED: June 20, 2022 |
| CHANGES TO SPECIFICATIONS |
| “3. Freezer and Cooler Temperature: Provide two (2) space temperature sensors in kitchen’s walk-in cooler and freezer. Provide alarm if space temperature rises above setpoint for more than five (5) minutes. |
Other files
| File | Type | Posted |
|---|---|---|
| Bid Invitation | — | |
| Addendum 1 | — | |
| Addendum 3 | — | |
| DRAWINGS | — | |
| Addendum 2 | — | |
| Award Information | — |
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