RTHV– Rooftop Package Unit – RTHV‑02‑A Install Manual

⚠️ Safety Notice – Reverse Cycle Air Conditioners

This equipment must only be installed, commissioned, serviced and repaired by suitably qualified and licensed personnel.


Before commencing work, complete a task-specific risk assessment and ensure electrical isolation procedures, safe access, adequate service clearances and appropriate PPE have been considered. All work must comply with applicable regulations, standards and manufacturer requirements.


Particular care must be taken when working around electrical systems, refrigerant circuits, moving parts, roof spaces, ceiling spaces, confined spaces and working-at-heights hazards where applicable.


Do not proceed if safe access, required clearances, confined space risks or appropriate safety controls cannot be achieved and maintained. 


Safety takes priority over diagnosis, repairs, installation schedules and customer expectations. If the task cannot be completed safely, it must not proceed until the risks have been adequately controlled.


How to Find Information in the Installation Manual

⚠️ IMPORTANT – READ THIS FIRST

The supplied RTHV‑02‑A – Rooftop Package Unit – Install Manual is the ONLY approved document for installing, commissioning, servicing, or repairing this unit.

If there is any difference between this article and the supplied Installation Manual, the Installation Manual always takes priority.

Failure to follow the Installation Manual may:

  • Void product warranty
  • Create serious safety risks
  • Expose the installer and dealer to liability

Purpose of This Article

This article helps installers:

  • Understand what information is contained in the RTHV‑02‑A Installation Manual
  • Quickly find the correct section and page number
  • Use the manual correctly on site or before attending site

Think of this article as a navigation guide to the PDF, not an instruction set.

Checking the Unit on Delivery

? Install Manual section: Checking Received Product
? Page 2

Use this section to:

  • Inspect for transport damage
  • Confirm the model number (e.g. RTHV500D3S)
  • Confirm the unit matches what was ordered

? If the unit is damaged or incorrect, do not install it.

Safety Warnings (R32 Refrigerant)

? Install Manual section: Safety Warnings
? Pages 4–5

This section explains:

  • R32 refrigerant is flammable
  • Required installer qualifications and training
  • Fire, spark, and ignition risks
  • Ventilation requirements
  • Rules for commissioning, servicing, repair, and disposal

✅ This section must be read before any work starts

Legal and Installation Prerequisites

? Install Manual section: Before Installation
? Pages 6–8

Use this section to confirm:

  • Licensing requirements
  • Minimum room size requirements
  • Ventilation rules
  • Restrictions for unventilated areas
  • Ducting safety rules
  • Refrigerant handling rules
  • Risk assessment expectations

Product Overview & Supplied Accessories

? Install Manual section: Introduction to the Product
? Page 9

Explains:

  • What comes factory assembled
  • Supplied accessories (wired controller, pulley)
  • General operating conditions

Tools Required

? Install Manual section: Necessary Tools for Installation
? Page 9

Lists standard tools required for the job.

Unit Dimensions, Lifting & Mounting

? Install Manual section: Installation
? Page 10

Use this section for:

  • Unit dimensions
  • Approved lifting points
  • Fixing bolt sizes
  • Mounting method

Minimum Clearance Requirements

? Install Manual sections:

  • Installation Minimum Clearances
  • Outdoor Unit Clearances
    ? Page 11

Defines mandatory clearances for:

  • Airflow
  • Service access
  • Noise and wind considerations

Condensate Drain Installation

? Install Manual section: Condensate Drainage Pipe Installation
? Page 12

Details:

  • Drain size (3/4")
  • Trap requirement
  • Pipe fall
  • Prohibited connections

Belt Tension Settings

? Install Manual section: Setting the Tension on the Belt
? Page 13

Explains:

  • Adjustment frequency
  • Tension values
  • Adjustment method

Electrical Wiring Requirements

? Install Manual sections:

  • Electrical Wiring
  • Mains & Control Wiring
  • Wiring Precautions
    ? Pages 14–16

Covers:

  • Power supply requirements
  • Earthing
  • Neutral connection
  • Emergency stop wiring

⚠️ Electrical work must be completed by licensed electricians only.

Start‑Up Procedure

? Install Manual section: Start Up and Commissioning
? Page 17

Explains:

  • Pre‑start checks
  • Basic start‑up sequence

Commissioning Documentation (Warranty Critical)

? Install Manual sections:

  • Commissioning Sheet – Page 20
  • Commissioning Checklist – Page 21

Must be fully completed and signed.

Fault Codes

? Install Manual sections:

  • Error Codes – Outdoor Unit – Pages 18–19
  • Error Codes – Indoor Unit – Page 19

Used for fault identification only.

Servicing, Removal & Disposal

? Install Manual sections:

  • Servicing Requirements with Flammable Refrigerants – Page 22
  • Removal and Disposal – Page 23

Covers safe servicing and legal disposal requirements.

Final Reminder for Installers

✅ Always use the RTHV‑02‑A – Rooftop Package Unit – Install Manual