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Tender Documents.pdf - Northern Rockies Regional Municipality

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Fort Nelson NRRM TESTING, ADJUSTING & SECTION 15990<br />

Airport Terminal Building BALANCING Page: 2<br />

Washroom Renovations<br />

• Fan total air volume at 100% return air, “minimum” outdoor air, and 100% outdoor air<br />

settings.<br />

• Fan speed.<br />

• Fan motor current, and rated motor current.<br />

• Entering and leaving air temperatures for each heating coil.<br />

3. Water Systems (HVAC):<br />

Water circulating systems shall be balanced by means of balancing fittings and tabulated results<br />

shall include the following:<br />

• Differential head across all circulating pumps.<br />

• Flow and return water temperature to supply and return header for all zones.<br />

• Water temperature supplied to and returning from each coil and heating element.<br />

4. Contractor shall arrange with balancing technician to have water flow through radiation<br />

elements checked prior to installation of radiation enclosure.<br />

5. Domestic Hot Water Recirculation System:<br />

Domestic hot water recirculation system shall be balanced by proportioning the water flow at<br />

balancing fittings and ensuring adequate flow through each circuit.<br />

6. Testing of Fire Dampers & Fire Stop Flaps:<br />

The Balancing/Testing Agency shall conduct a "trip" test on all fire dampers and fire stop flaps<br />

to ensure that fire mechanisms function correctly and that dampers attain a fully closed position<br />

when tripped. A copy of test results tabulating the fire damper location, size, and date of trip<br />

test, shall be sent to the Engineer for record purposes. Copies shall also be inserted in<br />

Equipment Maintenance Manuals. Dampers and Flaps which fail to function correctly shall be<br />

re-tested after corrective action has been completed. Any fusible links damaged when<br />

conducting tests shall be replaced by this Contractor. A signed and dated test label shall be<br />

attached to each fire damper upon completion of test and resetting of fire damper.<br />

7. CAD drawing files of the heating and ventilating tender drawings will be made available to the<br />

Balancing Contractor if requested. To cover administrative time and the cost of retrieval and<br />

transmission of files, a charge of $25.00 will be made for each drawing requested, to an upset<br />

maximum of $150 per project. An "Authorization to use CAD Drawing File" agreement<br />

restricting the use of the CAD files to the preparation of the project balancing reports must be<br />

signed prior to obtaining the files.<br />

February 2012 JM BEAN & CO. LTD 1130.10

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