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HVAC

Scope of Works — 32a Archbold Road, Roseville NSW 2069

5

Tasks

2

Rooms

1

Phases

0%

Complete

Not Started: 5

Phase Coverage

Pre-Con

Design

Approvals

Demo

Build

Finishes

External

Summary by Room

RoomTasksDonePhases
Whole House40Build
Lounge10Build

Detailed Scope

Whole House

4 tasks

Construction & Fitout

HVAC — ducted AC system design

High

Not Started

Mechanical engineer design fee — duct layout, zone sizing, equipment selection. CONFIDENCE: 55/100 — HVAC pricing depends on system size (kW), zones, and ductwork complexity. Brand choice is a [price hidden]-5K variable. QUESTIONS: (1) Heat load calculation done? (2) Number of zones required? (3) Brand preference (Daikin, Mitsubishi, Fujitsu)? (4) Existing ductwork to reuse?
1 lotWhole HouseConstruction & Fitout

HVAC — ducted AC supply & install (multi-zone)

High

Not Started

Ducted reverse-cycle air conditioning system for whole house. System: Daikin or Mitsubishi ducted unit ~14kW cooling / 16kW heating. Indoor unit: ceiling-concealed fan coil unit — [price hidden]. Outdoor unit (condenser): ~[price hidden]. Zone controller: iZone or MyAir 4-zone system — [price hidden]. Refrigerant pipe: ~15m run (ground to roof space) — [price hidden]. Install: HVAC installer 3 days @ [price hidden]/day = [price hidden]. Electrical: dedicated circuit + isolator — [price hidden]. Commission: test, charge, balance — [price hidden]. Total: indoor [price hidden] + outdoor [price hidden] + zone [price hidden] + pipe [price hidden] + install [price hidden] + electrical [price hidden] + commission [price hidden] = [price hidden]. Rounded to [price hidden]. CONFIDENCE: 55/100 — System size assumes ~200sqm floor area, moderate insulation. Actual kW sizing needs heat load calculation. Ductwork is a separate task. Price depends on brand tier. QUESTIONS: (1) Has a heat load calculation been done? (building area, insulation, glazing). (2) Preferred brand (Daikin/Mitsubishi/Fujitsu)? (3) How many zones needed? (4) Where will outdoor unit be located? (noise/visual impact). (5) Is there existing ductwork to reuse? (6) Gas heating boost wanted or fully electric?
1 lotWhole HouseConstruction & Fitout

HVAC — commissioning & balancing

Medium

Not Started

HVAC commissioning — test all zones, balance airflow, set thermostats. Half-day. CONFIDENCE: 55/100 — HVAC pricing depends on system size (kW), zones, and ductwork complexity. Brand choice is a [price hidden]-5K variable. QUESTIONS: (1) Heat load calculation done? (2) Number of zones required? (3) Brand preference (Daikin, Mitsubishi, Fujitsu)? (4) Existing ductwork to reuse?
1 lotWhole HouseConstruction & Fitout

HVAC — ductwork rough-in during construction

High

Not Started

~30 LM flexible duct + 8 diffusers + 4 zone dampers + return air grilles. HVAC installer 3 days. CONFIDENCE: 50/100 — Plumbing is access-dependent. Slab vs subfloor, pipe run lengths, and fixture locations all affect cost significantly. QUESTIONS: (1) Floor type — concrete slab or timber subfloor? (2) Distance from main stack/drain to fixture locations? (3) Any slab penetrations needed (costly)?
3 dayWhole HouseConstruction & Fitout

Lounge

1 tasks

Construction & Fitout

Lounge — HVAC rough-in (ducted zone)

Medium

Not Started

Ductwork rough-in for 1 zone — flex duct, diffuser, return air, zone damper. HVAC installer 1.5 days. CONFIDENCE: 50/100 — Plumbing is access-dependent. Slab vs subfloor, pipe run lengths, and fixture locations all affect cost significantly. QUESTIONS: (1) Floor type — concrete slab or timber subfloor? (2) Distance from main stack/drain to fixture locations? (3) Any slab penetrations needed (costly)?
1 lotLoungeConstruction & Fitout

Sequencing & Dependencies

Tasks that must be coordinated with other trades or completed in a specific order.

HVAC — ducted AC system design

Blocks

HVAC — ductwork rough-in during constructionWhole HouseFinish → Start

HVAC — ducted AC supply & install (multi-zone)

Depends on

HVAC — ductwork rough-in during constructionWhole HouseFinish → Start

Blocks

HVAC — commissioning & balancingWhole HouseFinish → Start

HVAC — commissioning & balancing

Depends on

HVAC — ducted AC supply & install (multi-zone)Whole HouseFinish → Start

Blocks

Electrical — final test & tagWhole HouseFinish → Start

HVAC — ductwork rough-in during construction

Depends on

HVAC — ducted AC system designWhole HouseFinish → Start

Blocks

HVAC — ducted AC supply & install (multi-zone)Whole HouseFinish → Start

Lounge — HVAC rough-in (ducted zone)

Depends on

Lounge — structural: open front wall to connect into 6m extensionLoungeFinish → Start

Blocks

Lounge — Georgian trim (cornices, skirting, architraves, wainscoting)LoungeFinish → Start

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