Scope of Alternative Heating & Cooling Ltd (A.H.A.C)  Work  

1. Design of Ground Source Heat Pump (G.S.H.P) System installation

2. Supply, install and commission complete heat pump system

Building type:

2 Storey dwelling & adjoining garage

Location:

Nenagh, Co. Tipperary

Year of construction:

2001

Type of construction

Block Cavity Insulation

Total Floor area (m2)

470 m²

Number of storeys:

2

Type of heat distribution system:

Underfloor heating throughout

% of total floor area heated:

80%

Design outdoor temperature (ºC)

Heating:

-3

Cooling:

- N/A

Design indoor temperature (ºC)

Heating:

21

Cooling:

- N/A

Heating and cooling Loads

Application:

Main Block of house heated by underfloor heating upstairs and downstairs.

Heat pump type(s):

Water-to-water

Manufacturer

Waterfurnace

Cooling:

Model

EKW17 & EKW12

Heat pump installed capacity (KW)

Heating: 30Kw

Refrigerant:

R-410A

Heat source

Ground - Horizontal

Details (circulating pumps):

450 W (ground-source) + 245W (distribution per floor)

a) Type of ground heat exchanger:

Horizontal

b) Trench area:

800 m²

c) Pipe length (m):

1600m

d) Heat transfer fluid:

Water/glycol 20%

Distribution system(s):

Underfloor heating

35/25

Cooling:

- not used

Supply and return temperature (ºC)

Underfloor Heating:

30/25

Hot water capacity

500 L

Auxiliary system:

None

Heat pump design:

100% of building load as determined by the under floor heating contractor.

Supplementary system:

Open fireplaces

Ventilation

Wall vents

Heat pump system completion date:

2004