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What is the difference between an InRow RP, InRow RD (600mm), and InRow RC (600mm)?

Issue:
What is the difference between an InRow RP, InRow RD (600mm), and InRow RC (600mm)?
 
Product line:
ACRPxxx, ACRC5xx, ACRD5xx
 
Environment:
Data Center Cooling
 
Cause:
 
Resolution:
The InRow RP comes with all the standard features including electric reheat and humidity control.  Whereas the 600mm InRow RD and RC do not.  These units are the equivalent to an InRow RP with the exception that they do not have the equipment for electric reheat and humidification control.  If you purchase one of these it is required to have the proper load.  The minimum required kW for 1 direct expansion unit is 12kW and 12kW for chilled water. There should also be a consideration regarding humidity control.  Due to the lack of heaters in the RD and RC, there is no dehumidification of the room over the normal cooling of the space.  There is a propensity for excessive moisture to build up.
 
Model# Reheat Humidification
ACRP10x yes yes
ACRP50x yes yes
ACRD50x no no
ACRC50x no no
ACRD60x no no
ACRD60xP yes yes

x = denotes this applies for 208 and 460v.
 
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