Wicklow Hospice
Magheramore. Ireland
2021
Aquarea air to water heat pump, Control, Others
Outdoor units: 6 x Aquarea T-Cap 16kW units
Indoor units: 1500L buffer tank
Control: Panasonic Cascade Controller to provide underfloor heating to 2022m2 of floor space to the new building.
J V Tierney & Co Consultants, Mechanical Contractors Quinn Downs Ltd and Installers Base Engineering Ltd
Panasonic Aquarea Heat Pumps are providing energy efficient heating and DHW to Wicklow Hospice. Consultants, J V Tierney & Co and main mechanical contractors Quinn Downes Ltd, created a design for a low carbon heating system to service the facilities of this new hospice. The solution, featured six Panasonic Aquarea H Series T-Cap 16kW units along with a Panasonic Cascade Controller to deliver a low environmental impact, minimal maintenance, is highly energy efficient and cost-effective.
Challenge
This new €10m modern facility, in Magheramore, Ireland, has 15 in-patient rooms with ensuite facilities for those with life
limiting conditions, as well as several treatment rooms for out-patient clinics
and multidisciplinary specialist services. The new facility offers palliative
and respite care for the local community. The funding for was raised over a 10-year
period by local support groups, with the work completed and the premises officially
opened in January 2020.
Solutions & Tech Applied
Although the original specification was for a ground
source set up, local heat pump specialists, Base Engineering, instead recommended
the Panasonic Aquarea air source heat pumps, along with the Panasonic Cascade
Controller as more suitable for the project.
JV Tierney & Co worked with Quinn Downes and
Base Engineering to incorporate the air-to-water heat pumps into the existing
design for the building, using the individual heat pumps’ controls, in addition
to the Panasonic Cascade Controller to help provide equal run hours across all
six heat pump units. This sophisticated control strategy offers a great deal of
modulation and weather compensation to supply a more efficient and flexible solution
to deliver a longer lifespan with minimal maintenance.
The use of air-to-water heat pumps in the system,
complements the installation of 24 solar PV panels on the roof of the building.
The Panasonic heat pump system is able to use the free energy created by the
solar panels to further boost the output by up to 400% in the creation of heat and
DHW to further increase the energy efficiency of Wicklow Hospice.
This new €10m modern facility, in Magheramore in
Ireland, has 15 in-patient rooms with ensuite facilities for those with life
limiting conditions, as well as several treatment rooms for out-patient clinics
and multidisciplinary specialist services. The new facility offers palliative
and respite care for the local community. The funding for was raised over a 10-year
period by local support groups, with the work completed and the premises officially
opened in January 2020 by Minister for Health, Simon Harris TD.
The building is heated by 2022m2 of
underfloor heating made up of 13,000m of pipework, controlled by 68 thermostats
throughout the facility. The 15 bedrooms are all 28m2 including
ensuite facilities. Each of the six Panasonic Aquarea heat pumps links to a
1500L buffer tank which then provides hot water to the underfloor heating
system across the entire facility.
Garrett Kennedy of Base Engineering Ltd added, “Over
the years, we have installed hundreds of Panasonic Aquarea air-to-water heat
pumps. From our experience, we have always found the units to be very reliable,
have an equal - if not better - COP than ground source heat pumps, and the
units only require minimum maintenance that will help reduce long term costs
for the Hospice. Furthermore, the six Panasonic
Aquarea H bi-bloc units each has an inverter driven heat pump that can self-modulate
to meet demand and step in at varying stages via the Panasonic Cascade Controller
to further save on energy use.”
The new Panasonic Cascade
Controller can operate up to 10 Aquarea air-to-water heat pumps (160kW)
simultaneously or in cascade mode, helping to meet the heating or cooling
demand of commercial buildings more efficiently.
Eamonn Kent, Air to Water Key Account
Manager, Panasonic Ireland, further commented, “For large projects such as
Wicklow Hospice, efficiency is the key to creating a more sustainable building
and reducing heating costs. Cascade control is increasingly being utilised,
making use of parallel-connected heat pumps, and switching on the most
efficient number of these as demand is increased or decreased. In addition, the
controller includes an intuitive touch screen display with information about
each of the connected heat pumps - ideal for quick servicing and remote maintenance
tasks.”
This scale of the Panasonic Cascade
Controller presents a more efficient solution for commercial buildings. It
helps to maximise the lifespan of the Panasonic Aquarea heat pump units, which
can be intelligently managed to balance the load, and offers a contingency
solution if maintenance is required, minimising downtime.
For
more information on the Panasonic Aquarea Air to Water range, please visit https://www.aircon.panasonic.eu/IE_en/.
Key Tech Features
The Cascade Controller can operate up to 10 Aquarea heat pumps simultaneously or in cascade mode.