- News Blog
Posted by Benoit Maneckjee on 26th Feb 2018
In February we finally got to see our new line of Aaon CF heat pump condensers in action. The first of several new installations in Nova Scotia was comprised of four CF-20 outdoor heat pump condensers, each with two 10 ton refrigeration circuits connected to four of our DX2W-3 20 ton indoor split modules. This 80 ton installation is at the new Velo apartment building complex at 2300 Gottingen Street in Halifax which features 105 apartments, 9 retail spaces and a 2nd phase in the future expanding the complex by 50% requiring another 60 tons for a total size of 140 tons. The new Aaon rooftop condensers are much quieter, powerful and energy efficient than previously used condensers and monitoring data has shown that they are outperforming our projections, promising customers quicker payback, greater savings and longer expected longevity.
Four Aaon CF-20 Heat Pump Condensers up on the roof in Phase-1. They are used for heating, air
conditioning and domestic hot water production. Phase-2 will add another three units to the roof.
Three of four ThermAtlantic 20 Ton DX2W-3 Modules in rooftop mechanical room. Room has been fitted
for three more 20 ton units for the 2nd phase of construction for a total of 140 tons.
Photo showing the two 6" diameter low loss headers connecting rooftop to basement mechanical rooms.
Low loss headers make it possible for water to be distributed over 5 stories apart with virtually no
additional pumping power.
Basement mechanical room showing 1 million BTU natural gas boiler used for backup heat
and domestic hot water top-up.
Basement mechanical room showing three 175 gal buffer tanks used for both heating and cooling.
Basement mechanical room showing three pre-heat and three top-up domestic 120 gal hot water
indirect dual coil tanks. The first three tanks are preheated by the heat pumps between 100-120°F
during the winter and topped-up by the boiler loop as needed using the last three tanks.
The hydronic design we came up with for this project required us to locate the condensers up on the roof along with our DX2W-3 modules but keep the heavy and bulky storage tanks, domestic hot water and backup boiler in the parking garage mechanical room. This was accomplished by using a 6" diam low loss header to connect the rooftop and parking garage mechanical rooms along with a smaller 3" loop for domestic hot water preheat. Our building automation platform controls and monitors the eight 10 ton refrigeration stages, 1 MBTU natural gas boiler, 3 x 175 USG stainless steel buffer tanks, 3 x 120 USG stainless steel indirect water tanks for preheat along with another 3 x 120 USG stainless steel indirect tanks for domestic hot water top-up and storage and finally a snow melt system. Eleven Wilo Stratos Smart ECM circulators are used throughout the installation and feature dual heads for redundancy in all mission critical circuits.
In December we decided it was time to offer our customers ready access to a comprehensive line of top quality stainless steel tanks. Although we've sold quite a few tanks over the years, freight costs, lead times, limited selection and the high cost of good quality products have driven installation costs up and not allowed [...]
This fall we have several new tenant sub-metering projects unfolding in Nova Scotia. The first is the installation is at the Vüze - the new name for the renovated Fenwick Towers in Halifax which is the tallest building east of Montreal. Here we have supplied our new line of potable water pulse meters, high frequency [...]
This summer also saw the installation of our commercial products in a 48 unit apartment building in Wolfville, Nova Scotia. This installation used three of our tandem 20 ton DX2W-3 modules connected to six 10 ton heat pumps outside. Water is heated or chilled by the heat pumps and stored in three 200 gallon buffer tanks [...]
This summer saw the installation of our products in a 72 unit condo development in Halifax, Nova Scotia. Three of our 20 ton tandem DX2W-3 air to water modules were connected to six 10 ton heat pumps outside over the underground parking garage deck and three 200 gallon buffer tanks. The hydronic design offers both [...]
With increased levels of interest in our unique Tandem DX2W-3 modular splits we thought it would be a good idea to show you what a mid-sized residential installation looks like. This 7,700 SF home is located in Paradise, NL and features hydronic floor heating throughout along with a central forced-air system for cooling. The installation [...]
We're glad to announce that the first DX2W-3 Modules started shipping earlier this month. Commercial modules are now available in 10 and 20 ton configurations and are designed to connect to conventional 10 ton outdoor heat pump units. We can sell the indoor split modules by themselves or bundle them with a matched US made [...]
With the recent release of our commercial DX2W-3 modules we began using multiple heat exchangers in one cabinet as a means of achieving higher capacities. When doing this we have the option to pipe the refrigerant using one or two refrigeration circuits - a practice commonly used in commercial air handlers. When matching one of [...]
Many of you have been contacting us for details on how our new Tandem & Commercial DX2W-3 Modules are coming along. We're glad to report that performance testing is almost complete and that the new models will be the first in the world to come with integrated electronic refrigerant charging controls which tell you when [...]
With the surge of interest from the USA over the last six months we decided it was time to upgrade our website and offer more details & suggested pricing on all our commercialized products. On-line ordering is available to dealers & distributors but you'll need to contact us and create an account before you can [...]