APC ACPDX21-86 User Manual

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InRoom Precision AC Tech Data Manual
Overview 
General
The InRoom product family is an 
assemble to order (ATO) line of 
perimeter air conditioning 
systems that provide precision 
cooling for data centers and 
server rooms.
Precision environmental close 
control requirements now reach 
far beyond the confines of the 
traditional data center or 
computer room to encompass a 
larger suite of applications, 
referred to as technology rooms. 
Critical environment applications 
include:
•  Computer rooms
•  Telecommunication facilities
•  Clean rooms
•   Power  equipment
•  Medical equipment rooms
•  Archives
•   LAN/WAN environments
A worldwide network of APC 
representatives is fully qualified 
to provide engineering, sales, 
installation and service for our 
products. 
APC warrants all parts for 1 year.
Models
The InRoom precision air 
conditioning unit is available in 
five sizes. The system is available 
in both chilled water and direct 
expansion for a combination of 
six heat rejection methods.
Select from ACPDX21-86 and 
ACPCW40-150.
Room Air Distribution
The InRoom downflow system 
draws warm exhaust air in 
through the top of the unit and 
cools it. The cool air is distributed 
back into the room through a 
raised floor plenum. These 
systems are ideal for areas with 
raised floors greater than 305 mm 
(10 in) high. Upflow systems 
draw warm exhaust air in through 
the front of the unit. The warm 
exhaust air is then cooled and 
discharged back into the room 
through a plenum or ductwork.  
Upflow systems are ideal for 
areas without a raised floor, but 
can also be used in a raised floor 
environment.
The InRoom precision air 
conditioner delivers high volume 
airflow to help eliminate hot spots 
in densely populated 
environments.
Configurations
•   Air  Cooled
•  Air Cooled with Chilled 
Water Coil (MultiCool)
•  Chilled Water Coil
•  Fluid Cooled (Glycol)
•  Fluid Cooled (Glycol) with 
Economizer Cooling Coil
•  Fluid Cooled (Glycol) with 
Chilled Water Coil
Compliance Approval
1. ETL/CETL
2. NTRL Listed
3. Electrical Systems comply 
with NEC and UL 1995/
CSA22.2 No.236
Standard Features
1.  Insulated Cabinet
2.  Direct Drive Fans
3.  Electrical Panel
4.  Main Power Disconnect
 Switch
5.  Refrigeration System with
 Scroll Compressor and
 Crankcase Heater (DX only)
6.  Redundant Group Control
7.  Network Management Card
8.  Electronic Expansion Valve
 (DX only)
9.  Duct Flange (Upflow only)
10. 30% ASHRAE Air Filters
11. Brazed plate condenser
12. 2 or 3 Way Fluid Regulating
 Valves  (Glycol models)
13. 2 or 3 Way Fluid Regulating
 Valves  (CW only)
14. Discrete Input/Output
 Interface
15. Resettable Circuit Breakers
16. Microprocessor Controller
17. Graphical User Interface
18. Electrically Commutated
 (EC) Fans
19. Stainless Steel Condensate
 Pan
20. Automatic Transfer Switches
Optional Features
1. Plenum 
2. Sub-base Plenum
3. Floorstand 
4. Seismic Floorstand
5. Immersed Electrode 
Humidifier 
6. Condensate Pump
7. Electric Heat
8. Spot Water Detector(s)
9. Cable Water Detector(s) 
(60 Hz only)
10. Smoke Detector
11. Hot Gas Bypass Valve
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