Air source heat pump innovation - a case study

7 April 2011 | By Julian MilnesI

Innovative air source heat pump solution was required to reduce building carbon emissions, says Jodi Willis of energy and sustainability

A commercial developer specialising in student accommodation, to design the building services on a 400 bedroom new build development in London.

Our appointment was also to develop an energy strategy to be submitted to the Local Authority as part of the planning proposals demonstrating how the sustainability targets set within the Local Plan and emerging Local Development Framework could be met.

Initial proposals were to provide air source heating to the entire development with combined heat and power addressing the baseline domestic hot water loads with a top up from biomass fired boilers in order to meet the carbon emissions savings and also provide a proportion of renewables integration that approaches that of the London Plan target of 20 per cent

Fujitsu AWYZ18-LB Ceiling Wall Mounted Air conditioning (5.2Kw / 17700Btu) Inverter

5.2Kw / 17700Btu Heatpump Inverter Split Type Ceiling Wall mounted Air conditioning System.


FEATURES

A perfect combination of compact wall device and powerful ceiling device
Larger air inlets and outlets with diffuser for improved efficiency
UV light air disinfection
Titanium apatite filter for elimination of odours
Self-cleaning function
Energy-saving thanks to speed-regulated inverter and V-PAM technology
Low-noise operation
Infrared remote control
Automatic filter cleaning and easy maintenance
Automatic restart after power loss




Operation Mode

cooling

heating

Capacity

kW

5,20 (0,9~5,9)

6,70 (0,9~9,7)

Power Consumption

kW

1,58

1,63

Energy Class (EER) - cooling

W/W

3,29-A

-

Energy Class (COP) - heating

W/W

-

4,11-A

Running Current

A

6,9

7,2

Operation Range

oC

-10~43

-15~24



Unit

indoor

outdoor

Airflow (High)

m3/h

850

1910

Net Dimension (H x W x D)

mm

250 x 899 x 298

578 x 790 x 300

Weight

kg (lbs)

13,5 (30)

39 (86)

Noise Cooling (H/M/L/Q/SQ)

dB(A)

46/43/35/29/24

47

Drain Pipe Diameter

mm

16

29



System Data

Input Power

V/Ø/Hz

230/1/50

Moisture Removal

l/h

2,8

Piping Connections (Small/Large)

mm

6,35/12,70

Max. Pipe Length (Chargeless)

m

20 (15)

Max. Heigth difference

m

15

Refrigerant

-

R410A