Page 44 - 2012 SDCA Project
P. 44
SYSTEMS
PROPOSALS
The building that houses the Woman’s Club is a double driven compressor and individual electronic expansion this a viable choice for the Woman’s Club building to
layered granite wall building with a wooden truss built valves (EEVs) for each indoor unit. accommodate multiple activities and help in maintaining a
roof and single ply asphalt shingles. The building has a constant temperature in the Library/Heritage Room.
crawl space and front porch that is handicap accessible Key Features
and a porch at the rear of the building. The HVAC system • DC twin rotary compressors Advantages:
was recently replaced due to vandalism. The building • Unique dual inverter drive in every outdoor unit • Heat pump produces 3kW of heat to 1 kW of electricity
is presently cooled and heated with a Goodman® brand • Non-ozone depleting refrigerant Puron® spent (an electric heater gives you a 1 to 1 ratio)
GSX13 ENERGY-EFFICIENT SPLIT SYSTEM AIR • Noise below 50 dB(A) • Easy installation
CONDITIONER. • Compact and modular design • Easy maintenance
• Energy savings COP up to 4.1 • Quiet operation
RECOMMENDATIONS • New large-diameter fan design for improved air flow • Heating
• Improved fan blade design for smoother air flow and • Cost effective
THERMAL COMFORT less turbulence • Simple control
• Extended pipe runs for greater application flexibility • Commercially available in many sizes
During our site investigations we discovered that the attic
did not have insulation. The double walls of granite and a This technology is somewhat new and has been used Disadvantages:
plaster ceiling has provided a tight seal over the years but a extensively in the commercial area but the need to provide • Multiple units required (interior and exterior)
layer of batt insulation would provide additional R-value to different heating and cooling in several rooms will make
reduce heat loss. this a viable choice for the Woman’s Club building to PLUMBING SYSTEM
accommodate multiple activities and help in maintaining a
I. VARIABLE REFRIGERANT VOLUME (VRV)/ – with HEAT constant temperature in the Library/Heritage Room. I. Low Flow (ultra low flow), 1/8 gallon per flush models with
RECOVERY VENTILATOR a battery powered flush sensor is the unit recommended
II. SPLIT SYSTEM HEAT PUMP with Supplemental Heat - for all new construction and retrofits. These low flow units
A multi-split air-conditioning system, featuring variable with HEAT RECOVERY VENTILATOR $$ provide 85% of the water savings associated with waterless
refrigerant volume (VRV) technology--the so-called multi- units without the cartridge changing costs.
split VRV system--with one outdoor and several indoor units, This technology is somewhat new and has been used
is finding its way into residential and commercial buildings extensively in the commercial area but the need to provide Advantages:
since it provides precise capacity control with an inverter- different heating and cooling in several rooms will make • Low flow equals water savings
44 RAGS 2012
