Technical data
51InRow RD Technical Data Manual
I. Filters
1. ACRD100 series and ACRD200 series:
a. The standard filters shall be 20% efficient per ASHRAE 52.1, MERV 1 per ASHRAE 
52.2, 1/2 in washable mesh filter.
b. The optional filter shall be high capacity 2 in pleated, UL 900 Class 2, moisture resistant, 
with average atmospheric dust spot efficiency of 30%, per AHRAE Standard 52.1, MERV 
8 per ASHRAE 52.2.
2. ACRD500 series:
a. The standard pleated filters shall be 96mm (3.75in) deep, and 30% efficient per ASHRAE 
Standard 52.1, UL Class 2 (MERV 8 per ASHRAE 52.2). Filters shall be EN779 G4 
efficient.
b. The optional filter shall be 85% efficient per ASHRAE Standard 52.1 (MERV 13 per 
ASHRAE 52.2, EN779 F7).
J. Temperature Sensors
1. Internal Temperature Sensors: Thermistor temperature sensors shall be mounted behind the 
front and rear doors to provide control inputs based on supply and return air temperature. 
Sensor accuracy shall be within ± 1 degree F accuracy.
2. Remote Temperature Sensors
a. ACRD500 series: Three remote rack inlet temperature sensors shall be shipped with the 
unit to provide control input based on rack inlet temperature.
b. ACRD100 and ACRD200 series: One remote rack inlet temperature sensor shall be 
shipped with the unit to provide control input based on rack inlet temperature.
K. Selectable Top Or Bottom Piping (ACRD500 Series)
1. Pipe connections: The unit is equipped to facilitate field connections from either the top or 
bottom. Unit connections shall be made internal to the unit.
2. Pipe adapter: The unit shall include two pipe adapters that convert a 31.75-mm (1 1/4-in) NPT 
to a 31.75-mm (1 1/4-in) BSPT (manufactured in accordance with BS21). Pipe adapters shall 
ship loose with the unit for field installation where applicable.
L. Cable Water Detector (Optional)
1. The optional leak detection sensing cable shall be shipped loose with the unit. If water or other 
conductive liquids contact the cable anywhere along its length, the main controller visually 
and audibly annunciates the leak. 
2. The optional detector shall be provided with 6.1 m (20 ft) of cable. Cable may be cascaded up 
to 24.4 m (80 ft).
M. Bridge Power Cable Trough
1. An overhead power distribution bridge, that sits between adjacent NetShelter racks and allows 
for removal of the unit without disrupting the overhead power cabling, is available as an 
accessory.
2. Cable trough shall be constructed of 16 gauge cold rolled steel with a black powder coat finish.










