APC IN ROW RD ACRD101 Service Manual download pdf (Page 50)

InRow RD Technical Data Manual44

3. All exterior panels and frame shall be powder coated for durability and attractive finish.

Exterior frame and panel color shall have color values: L = 74.50, a = -0.53, b = +8.20.

4. Units shall include casters and leveling feet to allow ease of installation in the row and provide

a means to level the equipment with adjacent IT racks.

B. Fans

1. Variable speed direct drive mixed flow DC fan assembly (ACRD100 and ACRD200 series):

a. The unit shall be configured for draw-through air pattern to provide uniform air flow over

the entire face of the coil. Each unit shall include six 200 mm mixed flow direct drive DC

axial fans. Each fan assembly should be designed to provide 180.1 l/s (381.7 CFM) for

total unit airflow of 1080.76 l/s (2290 CFM). The ACRD500 series includes two fans.

Each fan provides 1085.5 l/s (2300 CFM) for a total unit airflow of 2171 l/s (4600 CFM).

b. Variable speed fans: Fans shall be variable speed capable of modulating from 30-100%.

Fans shall soft start to minimize in-rush current.

c. Fan protection: Each fan assembly shall consist of a plastic injection molded bezel with

integral fan discharge finger guard. Inlet of the fan should include a cage type finger

guard.

d. Operation and service: The unit should be capable of operation in the event of a fan

failure. Fans shall be replaceable while the unit is in operation.

2. Variable speed fan assembly (ACRD500 series):

a. Variable speed fans: The unit is equipped with two variable speed, electronically

commutated, 400-mm backward incline fans complete with inlet volute.

b. Fan protection: discharge finger guard. Outlet of the fan should include a cage type finger

guard.

c. Operation and service: The unit should be capable of operation in the event of a fan

failure.

C. Main Disconnect Switch

1. The unit shall be provided with thermal-magnetic circuit breakers with interrupt capacity

ratings per UL489/CSA C22.2/IEC-947.

2. Units shall include a main disconnect switch located on the electrical panel in order to

disconnect the power input.

3. A condenser disconnect shall be field-supplied.

D. Microprocessor Controller

1. Monitoring and configuration: The display interface shall allow monitoring and configuration

of the air conditioning unit through a menu-based control. Functions include status reporting,

set-up, and temperature set points. Four LEDs report the operational status of the connected air

conditioning unit.

2. Controls: The microprocessor controller shall come equipped with control keys to allow the

user to navigate between menus, select items, and input alpha numeric information.

Voltage kAIC

200-240V 50/60Hz 50

380-415V 50Hz 36

460-480V 60Hz 22

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 56

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APC IN ROW RD ACRD101 Service Manual Page 50

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