Ontario Commercial Plan Review: 305 Issues Found

Summary: Architectural plan A-706 depicts a single large fume hood (FH-1) in Chemistry Lab 450. However, the Mechanical P&ID (M-013.11) diagrams three fume hoods connected to the exhaust system for this room, which aligns with the Mechanical Controls schedule (M-801) that explicitly lists three fume hoods (Fume Hood 1, 2, and 3) for the same space.

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Summary: Drawing E-721 explicitly details the system in its sequence of operations as a '(SINGLE STAGE F/A SYSTEM)' and the schedule symbols only list 'FIRE ALARM HORN' and 'FIRE ALARM HORN/STROBE'. However, Drawing E-720 directly contradicts this by requiring 'ONE SPEAKER ZONE PER LEVEL AND ONE SPEAKER ZONE FOR EACH STAIRWELL' (General Note 4) and...

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Summary: Keynote 3 specifies a '3-PHASE 30A' connection for the Miele Washers, which requires a 3-pole circuit breaker and 3 circuit slots (e.g., 4N1-41,43,45). However, the plan tags the connections as 2-pole circuits (4N1-43,45 and 4N1-40,42), and Panel Schedule RP-CE-4N1 confirms these circuits have only 2 poles.

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Summary: The Plumbing Plan (M-250) designates multiple Vent Thru Roof (VTR) and Acid Relief Vents (VTR (AR)) at locations that physically clash with HVAC equipment shown on the HVAC Plan (M-351). Specifically, M-250 shows VTRs directly adjacent to AHU-5 and at grid intersections B-7 and C-7. However, M-351 locates Exhaust Fans (EF-41A, EF-46A, EF-38,...

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Summary: The electrical legend indicates to 'PROVIDE 120 V.' for the Motorized Latch Retraction (MLR). However, the Finish Hardware specification explicitly requires electrified hardware to operate via power supplies that provide a 'low voltage DC output' (12/24VDC). Providing 120V is only applicable to the hardware power supply unit itself, not...

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Summary: Detail 5 requires packing the inside of the steel sleeve with 'FIRE STOP MATERIAL', which indicates the floor slab is treated as a fire separation. However, it specifies 'SILICON CAULKING AROUND STEEL SLEEVE' for the exterior annular space between the concrete slab and the steel sleeve. Section 07 84 10 requires listed firestop and smoke seal...

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Summary: The drawing note in the FIRE SEPARATIONS LEGEND states that walls with a 'FIRE PROTECTED STRUCTURE RATING' shall be constructed as 0 HR fire separations with respect to penetrations. This directly contradicts the specification, which mandates that the F-Rating for firestopping must not be less than the fire-resistance rating of the construction...

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Summary: The Code Plan assigns a '45 | - | CR' tag to the doors leading into the exit stairwells. According to the 'FIRE PROTECTED CLOSURES LEGEND', the second position in this tag designates the 'CLOSURE OPERATION CONTROL DEVICE', and a '-' explicitly indicates that no closure device is specified. However, Specification Section 08 11 13 requires all...

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Summary: Specification Section 09 91 23 designates 'PT#' for architectural interior finishes, specifically defining 'PT-1' as a High-Performance Epoxy and 'PT-2' as a Standard Performance Latex. However, the Code Plan Legend on drawing A-021 explicitly defines the 'PT-#' tag as '1HR INTUMESCENT PAINT'.

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Summary: The casework schedule explicitly lists multiple base cabinetry items (e.g., CW-002-3-L-A, CW-009-3-x-A) as standard 'STEEL BASE CABINETS' or 'STEEL_BASE_CABINETS'. However, Specification Section 12 35 71 mandates that all steel furniture under this section must be constructed of stainless steel.

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Summary: The overall interior width of the top wall in M. WASH 416 is dimensioned as 4736 mm. However, the continuous run of individual dimensions along this wall (urinal area 771 mm + urinal area 942 mm + standard WC stall 925 mm + barrier-free WC stall 2165 mm, which are dimensioned to the centerlines of the partitions) sums to 4803 mm. This sum...

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Summary: The Door Schedule includes a column for 'HARDWARE GROUP', but it is completely blank for all doors. Furthermore, Specification Section 08 71 00 (Section 3.6 Hardware Groups) contains no hardware sets, leaving the project without any defined hardware configurations.

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Summary: The electrical drawings specify dedicated line-voltage and 3-phase power circuits (e.g., 3-pole breakers 4NB-35,37,39 and 4NB-13,15,17) connected directly to Reheat Coils (tagged RHC), which designates a design for high-amperage Electric Reheat Coils. However, the mechanical specifications explicitly require 'hot water reheat coils' and outline...

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Summary: Drawing E-450 places Keynote 1 ('AREA NOT IN SCOPE') directly onto the footprints of the newly scheduled air handling units (AHU-16A, 16B, 16C, 16D). However, Specification 23 74 14 Section 3.1.1 mandates to 'Provide outdoor modular air handling units on roof'. Furthermore, Specification 23 74 14 Section 2.2.11.4 requires the Systems...

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Summary: The electrical single-line diagrams (Details 1 and 3 on E-702) show the main 125A and 150A branch power circuits for the Air Handling Units (e.g., AHU-1A, AHU-16B) feeding through external Variable Frequency Drives (VFDs). However, per mechanical specification 23 74 14, these modular AHUs are fully packaged units that require a standard main...

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