Replace CU-1 and Controls Idaho Department of Lands - Coeur d'Alene

Task #1 - replacement of the existing 40 ton condensing unit (CU-1 ) and the (2) associated evaporative coils in the air handling unit (AH-1 ). Drawings included. Task #2 - outside air and return dampers linkages on ah-1 shall be adjusted for proper closure of the outside air and return dampers. Task #3 - the economizer on AH-1 does not work properly and does not engage and will need correction from the controls contractor and mechanical contractor. Task #4 - ah-1 temperature and airflow trending shall be set up by the controls contractor. Add alternate #1 - controls contractor shall install a CO2 sensor in the return duct of AH-1 . Co control - the co2 sensor shall modulate the outside air damper between 0 cfm and minimum (3650 cfm) outside air cfm scheduled on drawings to maintain a maximum CO2 level of 1 000 ppm (or as set). During economizer cooling operation the CO2 sensor will be disabled and the outside air damper shall be capable of modulating fully open.


Bidding Closed

Prebid Date6/6/19 10:00 am

Bid Date6/13/19 2:00 pm

Company & Contacts

Kartchner Engineering

David Payton,   (509) 922-0383


Coeur d'Alene, ID

Project Estimate: $63,500.00

Bidders may download electronic files for a nominal fee of $15.00. Printed documents are available, at Bidders expense, by choosing the “Order” option.

06/06 – Pre-Bid Conference will be held at 3284 Industrial Loop Coeur d’Alene, ID on June 6th starting at 10:00 am.