N. ADDITIONAL PROGRAMMABLE INPUT/OUTPUT (I/O)

 

1.

The heart of the control system is the I/O controller on which up to 4 EAIO/EDIO boards

 

 

shall be connected for additional inputs and outputs. The InRoom Controller Manual has a

 

 

detailed description of inputs and outputs for InRoom configuration.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A-In

A-Out

D-In

 

D-Out

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IOC Board

5

4

11

 

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EAIO Board

4

4

1

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EDIO Board

1

1

8

 

6

 

 

 

 

 

 

 

 

 

O. EVAPORATOR FREEZE PROTECTION

 

 

 

 

 

1.

Suction pressure shall be actively monitored by two individual sensors and controlled by the

 

 

microprocessor to calculate the opening of the electronic expansion valve (EEV), eliminating

 

 

the risk of condensate freeze-up on the evaporator.

 

 

P.

PREDICTIVE FAILURE WARNINGS

 

 

 

 

 

1.

Several components within the unit, such as the compressor, blower, heater, and humidifier,

 

 

shall provide a warning through the display interface that service is needed.

Q. STEAM GENERATING HUMIDIFIER

 

 

 

 

 

1.

The humidifier shall be able to modulate capacity. The humidifier shall be self-contained,

 

 

steam-generating, factory-piped and wired, with a disposable cylinder and automatic solid-

 

 

state control circuit. Humidifier canisters are replaceable. The humidifier controller shall

 

 

communicate directly to the microprocessor controller and provide complete status and

 

 

control at the display interface.

 

 

 

 

 

R. SILICONE CONTROLLED RECTIFIER (SCR) ELECTRIC REHEAT

 

1.

Reheat elements shall be low watt density, wired for three-phase, loaded equally on all three

 

 

phases and electrically and thermally protected by both automatic and manual reset thermal

 

 

cutouts. Reheat capacity shall be _______ MBH, _______ kW, SCR controlled. Reheat coils

 

 

shall be stainless steel, fin, and tube construction.

 

 

S. HIGH LIFT, SINGLE FLOAT CONDENSATE PUMP

 

 

 

1.

The shipped loose, field-installed and wired condensate pump shall pump 1275 L/s (337

 

 

GPH) at 6.09 m (20 ft) head. The tank capacity shall be 3.78 L/s (1 USG).

T.

BRAZED PLATE CONDENSER

 

 

 

 

 

 

1.

Water and glycol cooled systems shall employ a brazed plate heat exchanger. The condenser

 

 

shall be equipped with clean-out plugs.

 

 

 

 

U. WATER REGULATING VALVES

 

 

 

 

 

 

1.

Water and glycol cooled systems shall utilize two-way or three-way valves to regulate the

 

 

amount of water or glycol supplied to the condenser in response to refrigerant discharge

 

 

pressure. The standard valve pressure rating shall be 2758 kPa (400 psi).

V.

DISCHARGE DUCT COLLAR

 

 

 

 

 

 

1.

A 25.4 mm (1 in) duct flange shall be provided for field installation on a unit to provide

 

 

convenient connection to external ductwork.

 

 

 

 

78

InRoom Precision AC Tech Data Manual

Page 82
Image 82
APC ACPDX21-86 manual Additional Programmable INPUT/OUTPUT I/O, Evaporator Freeze Protection, Predictive Failure Warnings

ACPCW40-150, ACPDX21-86 specifications

The APC ACPCW40-150 and APCDX21-86 are two innovative products from APC (American Power Conversion), known for their commitment to providing reliable power solutions for various applications. These models are tailored to meet the demands of modern businesses by focusing on efficiency, safety, and advanced technology.

The APC ACPCW40-150 is a 1500 VA line-interactive UPS (Uninterruptible Power Supply) system designed for protecting sensitive electronic equipment. This model features Automatic Voltage Regulation (AVR) which ensures consistent output voltage by correcting minor voltage fluctuations without switching to battery power. This capability extends battery life and enhances overall system reliability. The ACPCW40-150 is equipped with a user-friendly LCD interface providing real-time information on battery status, load capacity, and various operational parameters, making monitoring straightforward.

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One of the standout features of the APCDX21-86 is its EMI/RFI filtering, which prevents electromagnetic interference that can disrupt the functionality of sensitive electronics. The device is also equipped with diagnostic LEDs that provide immediate feedback on the protection status, allowing users to identify any issues promptly. Furthermore, its robust construction ensures that it can withstand typical wear and tear, making it a reliable choice for long-term use.

In summary, both the APC ACPCW40-150 and APCDX21-86 represent the forefront of power protection technology. Their main features not only cater to the need for uninterrupted power supply and equipment safeguarding but also integrate user-friendly technologies that promote efficiency and ease of use. Businesses and individuals alike can rely on these devices to enhance their operational resilience against power-related issues.