1. New Options for DryCool Products
Presented by: Scott McGinnis Regional Sales Manager LEED® Associate

2. What market has asked for
Digital Scrolls, even though they don’t always know why
Discharge Air Dew Point control
Limits of Desiccant Wheel Reheat
Post cooling options
More efficient HCU-ERV with less restrictions
Lower Dewpoints
No RA CFM limitations (old 70% rule)
Plate Exchangers vs. wheels
Larger Sizes (Greater than 16,000)

3. We have all that available
All the new options and layout are available
Require help form your AE
Pricing
Performance
Layouts
As these become more popular will be integrated into the Air Manager selection software

4. Digital Scroll Option Very popular technology
Keeps compressor motor running
Allows for part load (~10% minimum)
Provides Modulating DX coil
Munters has been experimenting with
effect on Dh Wheels
Munters also tested Danfoss VFD
Proved too costly for benefit

5. First On / Last Off = Standard Scroll
Must have Reheat

6. 91F/65dp
82F/56dp
74F/51dp
71F/45 dp
50F
83F/72 dp H

7. 79F/55dp__77F/53__75F/52
82F/56dp
74F/51dp
50F
83F/72 dp H

8. B compressor is digital
Programmed to modulate up and down for two reasons
1. Discharge Air Dew Point control:
Set a leaving air dewpoint and maintain that
DryBulb will fluctuate
2. Set a maximum leaving discharge air temp
Set at 75F to
May over dry the air, but will limit the discharge air so not so high

9. Auto Mode – DH with SA maximum limit

11. Digital in B
Energy Recovery
Indoors without remote ACCU
DryCool ERV

12. DryCool ERV B A B compressor is the Digital
Always have 50% dehumidification
Modulate then from 60% up to 100%
Same control options
Discharge Air Dewpoint
Max Sensible Temp
82F/54 dp
79F/52dp
77F/50dp A B
75F/48 dp
72F/47 dp

13. Digital Scroll Availability and Adds
15 tons digital is the largest we will use right now
Up to all 60 ton, 4 compressor machines
Available on all HCUs, expect the 1680
DryCool ERV up to 1648
Split B compressor into 2 independent circuits (2 x 12 tons)
DryCool Standard
Add ALC controller
Price add for Digital Comp and electronics
DryCool ERV
Add only for Digital Comp and electronics

14. HCU-ERV or “3” Fan ERV Take a DryCool Standard
Air Cooled or Water Cooled System
Reactivation Fan with OA inlet for Reactivation
Standard CFM/Ton ration for
Attach an enthalpy wheel Module to the back end
Enthalpy Wheel
EA Fan
Recirculation Damper
Actually the first HCU-ERV produced

15. ERV
DryCool

16. 3 FAN ERV
No 70% RA rule, just standard enthalpy wheel rules
ACCU or WCCU
Lower dewpoints
Better Staging with 4 compressors and digital options
Uneven RA airflow
Lower Winter Energy as there is no Reactivation Air in winter
Works for all DryCool Standard Models

17. New 3 Fan Unit: New Design, on case by case basis
Condenser Coils
A: Standard
B: Digital 3 2 1

18. New 3 Fan Unit: New Design, on case by case basis
No 70% Rule, uneven airflows thru Enthalpy Wheel
No Winter Pressure drop penalty
Lower Dewpoints
2 compressors
A = Standard
B = Digital
So, adds the discharge air dew point and max dry bulb control

19. New 3-Fan

20. Special DryCool Units
Turn to DesChamps factory when needing something unique
Plate Exchanger or Heat Pipe HCUs
Hybrid Chilled Water/DX
Post Cooling Coils (Water or DX)

21. Chilled Water / DX with Post Cool Chilled Water

22. DryCool
Counter Flow
Z-Duct HX

23. Total Tons: CW (56) + DX (84) + Post (13) = 153 Tons
57F
82F/80Gr
57F
Dry Air
After E Wheel
65F/80Gr
69/44Gr
56F/61Gr
Total Tons: CW (56) + DX (84) + Post (13) = 153 Tons

25. Semco 182”w x 146”h x 448” L

26. Remember!!! Digital Scroll Availability and Adds
15 tons digital is the largest we will use right now
Up to all 60 ton, 4 compressor machines
Available on all HCUs, expect the 1680
DryCool ERV up to 1648
Split B compressor into 2 independent circuits (2 x 12 tons)
DryCool Standard
Add ALC controller
Price add for Digital Comp and electronics
DryCool ERV
Add only for Digital Comp and electronics

27. HCU-ERV or “3” Fan ERV Take a DryCool Standard
Air Cooled or Water Cooled System
Reactivation Fan with OA inlet for Reactivation
Standard CFM/Ton ration for
Attach an enthalpy wheel Module to the back end
Enthalpy Wheel
EA Fan
Recirculation Damper
Actually the first HCU-ERV produced

28. Larger or Custom units Look to DCT for more answers
Post Cooling with digital scroll or chilled water
Larger cfm units
DryCool with Plate Exchangers
Work with your DCT Applications Enigineer

29. Regional Sales Manager
Questions???
Saving the planet,
one LESS btu at a time
Scott McGinnis
Regional Sales Manager