Seibu Giken DST modell RA061R (1450m3/hr) desiccant dehumidifier is a reliable option, as it is electro mechanical control means it can be locally services without circuit cards to confuse any diagnosis.  Its stainless steel construction is also useful in food crade areas which are frequently washed. Installed into the dock area and able to remove 10kg/h or water vapour, the units would control to 0Cdp at doc temperatures around 10C.  With the dry air directed towards the freezer door at -30Cdp the dryness of the infiltrating air would be adequate to avoid icing issues.

Americold reduce ice from 15 busy truck doors

In larger loading docks with multiple dock doors the CFA series provides more substantial capacity and ability to locate outdoors and use waste heat effectively.

A recent visit to Sydney by Mac Shimozono – Seibu Giken Global sales engineering manager acknowledged this achievmant when he met with AAAT manager and staff to congratulate them.

With AAAT system support with combined 40 years experience in Sydney Melbourne and Brisbane, AAAT lead in service support expertise.

The Collection of iconic works by Sidney
Nolan was donated to the people of Australia and includes
fifteen works from the Kelly series and the first of
the artist’s Burke and Wills paintings.
This significant collection is explored through a range of
visual arts education and community programs available
in the Gallery and studio space, or as outreach sessions in
the classroom.  Other works from the Nolan Collection ill
be shown as part of CMAG’s temporary exhibition program.
Canberra museum and art gallery has long suffered a
non compliance in humidity to suite there exhibit expectations
and employed Alexious Valentine of Northrop
Consultant to look into the alternatives. The chilled
water option was not going to ensure 50%rh and consumes excessive energy.

Maintaining Low Humidity

Use of Seibu Giken DST hot water regenerated Desiccant dehumidifier provided capability of getting the required supply air of 5.7g/kg (room 8.8g/kg, with 3.1g/kg internal moisture gain based on 7.5l/s air per occupant.  Other options would have required the chilled water to be lowered to 4C increasing chiller energy cost by 10% as we as removing capacity  OR persist with over-cooling and reheating the air, which was deemed to be inefficient and unreliable

Two RU  102 desiccant dehumidifier rotors were used and installed by Haden Engineering.  The system controls humidity to 50%rh +/-1.5%rh at 23C.

The stability ensures the art of Sidney Noland is stabilized for future generations to enjoy.

The National Archives site provides storage of permanent Commonwealth
records of enduring value and in many instances the stored records are
irreplaceable. The Chester Hill site contains approximately 90% of the
audio-visual records and 40% of the paper records held by the National Archives
of Australia. The conditions within the building must be strictly controlled
and monitored to maintain the life of the records stored within each area.

Originally the security vault and low temperature film vault were being
served (dehumidified) from common desiccant units serving the film vault and
inter-connecting duct and dampers.

Due to lowering of temperature within the film vault this meant that a new
stand alone desiccant dehumidifier had to be installed to serve the security
vault.

Whilst the change over of the two existing low temperature film vaults
was relatively quite simple the work had to be planned and staged so that the
conditions within the room ( 9^oC +/- 1^OC and 30%RH +/- 2%
RH) were maintained at all times. The work, disconnect, replace, re-connect
commission had to be completed in two four hour windows and involved four
separate trades.

As part of our tender submission Ryan Wilks in addition to offering a
complying tender submission for the new Security Vault unit Ryan Wilks offered
for consideration the supply of Seibu – Giken desiccant unit. We are please to
say that National Archives advised that Ryan Wilks were the only tender
submission to offer an alternate option and that this innovation went a long
way to securing the prestigious project.  Our alternate unit enabled the
National Archives to integrate a new supplier into their system on a small
scale for evaluation and to open up the marketplace and stop any monopolisation
by any one supplier.

The Security vault involved the supply, install and commissioning of one
new desiccant dehumidification unit to maintain conditions within the space of
20^oC +/- 2^OC and 50%RH +/- 5% RH). The works involved
minor new ductwork to be cut into the existing security vault return air, new
circuit breaker to be fitted to existing switchboards and connecting and
commissioning of new BMS connects to the base building system. The works were
“roughed in” in readiness for single cut over which was completed with the four
hour shutdown window.

This project was another example of Ryan Wilks innovation by offering
our clients an alternate option, completing critical cut overs within tight
time restraints and completing the works on time, on budget and to the
satisfaction of our client.