Case study: new HVAC for a Tauranga retirement village

All Seasons Air Conditioning has delivered an optimised HVAC solution to the Pacific Coast Retirement Village’s new Care Centre facility, Te Manaaki, using Daikin technology

The unveiling of The Care Centre - Te Manaaki took place in June 2023, marking a seamless extension of Pacific Coast Retirement Village. The necessary objectives for the air conditioning system included robustness, energy efficiency and the capability for simultaneous cooling and heating, as well as centralised control with scheduling and general monitoring functions. Outdoor units were required to have a compact footprint, strategically positioned on the roof, while indoor units were to remain discreetly concealed within communal spaces and care suits, ultimately ensuring a comfortable environment for residents.

Originally designed with nine REYQ-TAY1 VRV Heat Recovery outdoor units, the solution was optimised by transitioning to the newer REYQ-BYM range. This change not only enhanced efficiency but also reduced the number of outdoor units to seven, achieved by utilising two 24HP single module condensers. The compact design of the outdoor units facilitated easy installation within the limited plant room space on the roof. The new 24HP condenser utilised 7 per cent less installation space (1.34sqm) and weighed 11 per cent less (409kg) compared to its predecessor.

To contribute to cost savings and minimise on-site work, the majority of the multi branch selector (BS) boxes selected were the new drainless BS boxes. These were strategically located in the ground floor corridor and attic space for easy accessibility for future service and maintenance.

Considering the diverse spaces and their unique air conditioning and aesthetic requirements, a wide range of VRV indoors were selected for the project. For example, Bulkhead FXDQ-SPV1 units seamlessly integrated into the drop ceiling at the care suites entrances with their slim 200mm height profile.

Mid to high static ducted FXMQ-PAVE units were strategically placed in the ceiling spaces of lounges and corridor areas, complemented by remote temperature sensors BRCS01A-5 for accurate return temperature readings. A round flow cassette with sensing FXFSQ-AVM provided comfort in the lunchroom with its extensive range of airflow patterns and individual airflow direction control for each air discharge outlet. The compact cassette FXZQ-AVM integrated seamlessly in the standard architectural ceiling tile of the ground floor office with its elegant fully flat panel design. Additionally, a hi-wall FXAQ-AVM unit was utilised in the small meeting room on the same level. A separate commercial hi-wall system was needed for the laundry room, the FTXC-AV1 system accommodated a piping length of up to 75m between the indoor and outdoor unit.

The DEC102 adaptor card was incorporated to integrate ventilation systems and establish a fire interlock.

To enhance resident convenience and comfort, BRC1E63 wall-mounted controllers were selected for the care suites. These controllers, equipped with a built-in temperature sensor and user-friendly functions, provided residents with control over temperature, mode changes, airflow rates, scheduling, and an off timer.

The Care Centre - Te Manaaki serves as a great illustration of the effective integration of the latest Daikin VRV product into a retirement village project, meeting all the customer’s specifications. The precise installation by All Seasons Air Conditioning was carried out in close collaboration with the builder and other on-site contractors, ensuring a timely project delivery. The facility welcomed its residents in the third quarter of 2023.

Equipment used:

• Seven x REYQ-BYM VRV Heat Recovery condensers

• Multi port branch selector boxes (BS)

• A wide variety of VRV indoors (BulkheadFXDQ-SPV1

• Mid and High Static Ducted - FXSQ-PAVE and FXMQ-PAVE

• Round Flow Cassette with sensing - FXFSQ-AVM

• Compact Cassette - FXZQ-AVM

• Hi-wall - FXAQ-AVM)

• Sky Air FTXC-AV1A/RXC-AV1A Hi-Wall system

• BRC1E63 Wall Mounted Controllers

• Remote temperature sensors BRCS01A-5

• DEC102A51 adaptor card

• Intelligent Touch Manager (iTM) central controller

• iTM Plus Adaptor.

HVAC specialist: All Seasons Air Conditioning Limited