INCLUDED:
1. Air curtains except gas or oil fired units, where no duct connections are required;
2. Air duct silencers;
3. Air filters:
(a) Charcoal and odour filters;
(b) Dry-pak filters;
(c) Electronic/electrostatic filters;
(d) Filter gauges;
(e) Flat permanent type;
(f) Grease filters (when canopy supplied by this contractor);
(g) Roll type filters;
(h) Throw-away type,
Except for packaged air handling units that include filter sections
4. Air mixing baffles and air blenders;
5. Air terminal boxes complete with electric, electronic or pneumatic actuators, controllers and integral fan section, electric or water coils;
6. Air troffer boots;
7. Airflow measuring devices (self contained) when used for measuring only and not interfaced with any other system or device;
8. Attenuator boxes, tabulators and pressure reducing valves for air supply;
9. Back-draft and barometric dampers, self acting;
10. Balancing of air system including sound measurement pertaining to air systems;
11. Breeching and/or chimneys, 3.5 mm (10 gauge) or lighter, Types A, B and C, not refractory lined;
12. Canopies and hoods, domestic range hoods, ducted and non-ducted, except where called for under kitchen equipment;
13. Carbon monoxide exhaust systems complete with associated equipment and accessories, excluding monitors;
14. Combination fire/smoke dampers; less electric, electronic or pneumatic actuators and end switches;
15. Counter flashing for all exterior refrigeration units;
16. Counter flashing that pertain to this scope;
17. Direct-fired make-up air units except where no duct connections are required;
18. Drain pans for equipment under the mechanical scope (not packaged units);
19. Duct cleaning;
20. Duct furnaces;
21. Duct insulation, internal only (see 1 Excluded);
22. Dust or material collector systems complete with associated equipment and accessories, when air handling;
23. Electric duct mounted coils and electric heaters requiring duct connections;
24. Electric motor operated back draft dampers only when specified as part of an exhaust fan and/or roof hood;
25. Factory built solid fuel burning fireplaces and associated metal flues;
26. Fans:
(a) booster fans,
(b) exhaust air fans;
(c) exhaust fans which are remote from factory built fume hoods or fume cabinets;
(d) return air fans;
(e) stratification elimination fans;
(f) supply air fans;
except for packaged units with integral water, steam or glycol coils, where fan is not separated by ductwork or flexible connection;
27. Fire dampers and fire stop flaps;
28. Flexible type air ducts;
29. Garbage and linen chutes of metal construction;
30. Gas fired unit heaters and furnaces requiring duct connections;
31. Gauges (self contained) which indicate system air flow and/or pressure and do not interface with controls system;
32. Gravity relief vents and intakes;
33. Humidifiers when used in conjunction with furnaces;
34. Indirect fired self-contained heating and/or cooling units, including de-humidifiers, except where no duct connections are required;
35. Induced draft fans, except when in conjunction with incinerators and/or except when an integral part of a heating boiler;
36. Isolation for ventilation equipment;
37. Integrated ceiling system components as follows:
(a) Linear air boots when installed into but not forming an integral part of the ceiling system;
(b) Supply, installation and connection of flexible duct;
38. Manual smoke dampers;
39. Manually operated balancing dampers;
40. Motorized dampers; distribution and installation only;
41. Paint spray booths;
42. Plenums and casings except concrete, masonry and drywall construction shafts or tunnels in which case only an internal metal liner and/or internal insulation, if specified, will be provided;
43. PVC/plastic combustion air and flue venting;
44. Registers, grilles, diffusers and supply only of door grilles;
45. Sanitary napkin incinerator units and vents;
46. Scrubbers and odour/gas adsorber units. (Dry type requiring only drain connections);
47. Self-contained duct-mounted heat reclaiming units requiring no other connections;
48. Self-contained gas-fired classroom heating and ventilating units complete with all shelving, counters and accessories;
49. Sheet metal and non-metallic air handling ductwork including hangers and supports except concrete, masonry and drywall construction shafts or tunnels in which case only an internal metal liner and/or internal insulation, if specified, will be provided;
50. Spray eliminators in built-up plenums;
51. Thermometers (self contained) which indicate system air temperatures, and do not interface with controls system;
52. VAV box operators, controllers pneumatic;
53. Ventilation and exhaust ducting for emergency generators;
54. Weather louvres (mechanical and matching architectural) complete with bird screen, related sheet metal blank-off panels and filler pieces, except for louvers of cladding materials having the same finish as the wall cladding system, and forming an integral part thereof;
55. Welded sheet metal kitchen exhaust duct including the supply and installation of associated high temperature insulation and metal liner to protect combustible materials;
56. Welding fume extraction systems complete with central blower/turbine dust collection unit c/w PVC ducting and related accessories;
57. Work/materials/equipment included under Mechanical - Section 1.

EXCLUDED:
1. External insulation of concrete, masonry and drywall shafts, tunnels or plenums;
2. Mud grilles, foot grilles, pedigrid grilles including those used in conjunction with ventilation systems;
3. Indirect fired, self-contained heating and/or cooling units, including dehumidifiers, except where duct connections are required;
4. Ventilation grilles, caps and/or louvres for: (a) attic, (b) soffit or (c) crawl spaces (see 54 Included);
5. Work/materials/equipment excluded under Mechanical - Section 1;

The following items Excluded from this subtrade tender will be Included by the Prime Mechanical contractor:
6. Air washers,
7. Coil supports and hangers;
8. Drip pans under mechanical piping;
9. Drymop, wetmop and vacuum systems;
10. Fume cabinets;
11. Gas fired unit heaters and furnaces not requiring duct connections;
12. Gas vent grilles;
13. Gas, water and rain connections;
14. Gauges indicating Air Flow and/or Pressure and Thermometers for Packaged Air Handling Units supplied by the Prime Mechanical Contractor;
15. Operational gas tests;
16. PC sums and/or contingency funds when a specific dollar amount is listed in the Ventilation and Sheet Metal specifications;
17. Spray eliminator units in packaged units only;
18. Steam grid humidifiers;
19. Vitrified pipe except when used in conjunction with air collection systems