Assignment 9: Drawings and Specifications

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CMGT31033_DrawingsandSpecsAssignment.docx

CMGT 31033-Mechanical Systems for Construction Managers.

Dr. Onsarigo Lameck.

Assignment 9: Drawings and Specifications

Student Names: ________________________

You have been provided with a copy of plans and specifications for the proposed new Technology Service Center for a Miami Schools Project. For this assignment, you will need M-1 from your drawings and Division 15 specs.

Respond to the questions below citing where you found the answer (the first 2 are examples to STRICTLY follow as you respond to the rest). No points will be given unless you cite where the answer came from (60 Points).

Question

Answer

Citation

Example 1: Are the dimensions of the rectangular ductwork the actual internal dimension, or should it actually be smaller or larger?

Those are outside dimensions to allow ½” liner

M-1 Notes #4

Example 2: What ASTM standard must the duct liner conform to?

ASTM C553

15880-2, 2.8, C.

1. What manufacturer was used for the plans for the Grilles?

2. How many Btu’s of electric heat does heat pump number 2 produce?

3. What type and size of air filters are required for the heat pumps and duct work?

4. All heat pump units on this project should be equal to what manufacturer?

5. What is the height of the main supply ductwork for unit #1?

6. Can the size of the duct be quickly reduced at an angle of 70°?

7. How thick should the heat pump pads be?

8. How many CFM is planned for the Break room (Rm 111)?

9. Do you foresee any issues with duct crossing each other in the vault Room 108, and what ducts are those?

10. What voltage is Heat Pump #3?

11. Which types of thermostats are required for the project

12. What trade takes precedence in routing?

13. Is a Crankcase heater required for the compressors on the Heat pumps?

14. What is the longest length of flexible duct that can be used to connect diffusers or troffer boots to the low pressure duct?

15. What is the percentage of tolerance the air outlets and inlets have to be adjusted to for air balancing?