Addendum 4
118 KB Posted
- Attached to
- WEST TOWN SCHOOL HVAC AND PLUMBING UPGRADES
- Solicitation number
- 22-FAC-017
- Issued by
- Douglas County, Georgia
About this file
This is Addendum 4 to the original bid documents for the West Town Elementary School HVAC and Plumbing Upgrades project issued by the Dougherty County Board of Education in Albany, Georgia. The addendum, dated June 20, 2022, modifies the original specifications and drawings dated May 20, 2022, and must be acknowledged by all bidders to avoid disqualification. The modifications address instrumentation and control requirements for the HVAC system, including specific thermostat and temperature sensor installation specifications, placement heights, and locking cover requirements that vary based on location type.
The addendum contains two primary specification changes: first, revised thermostat and temperature sensor installation standards requiring newly installed devices in new locations to be mounted at 4 feet 6 inches above finished floor, while existing devices may remain at current heights, with classroom thermostats prohibited from having locking covers but commons area thermostats required to have them; and second, additional monitoring requirements for kitchen walk-in cooler and freezer spaces (requiring two space temperature sensors with alarm capability if temperatures rise above setpoint for more than five minutes) and data rooms with standalone ductless split systems or PTACs (requiring DDC system monitoring with alarm signals to the owner if space temperature exceeds the owner's setpoint).
Text of this file
West Town 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 230900-15, paragraph 3.12.N., 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 | — | |
| DRAWINGS | — | |
| Award Information | — | |
| Addendum 3 | — | |
| Addendum 2 | — |
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