Chapter 1 Description; General Description; Model Identification; Serial Number Date Code - Industrial Climate Engineering ECUA90 Installation & Operation Manual

Chapter 1 Description & Specifications
1.1

General Description

Industrial Climate Engineering's (ICE) Environmental Control Units (ECU) are a series of vertical
wall-mounted air conditioning systems that provide heating, cooling, and ventilation for electronic
equipment shelters, process control centers, E-Houses, and other applications with high internal heat
gains. The series includes multiple sizes and nominal cooling capacities from 90,000 to 120,000 BTUH.
Resistance heating elements are available in various wattages.
Industrial Climate Engineering ECU's feature an exclusive electronic control board.
The control board consolidates several of the electrical components, improves the air conditioner's
reliability and has LED's to indicate operating status and fault conditions to assist the service technician.
A complete description of functions of the control board is in Section 1.6
Other standard components include:
• Hot gas by-pass valve to allow operation in cold temperatures
• Thermal expansion valve to improve both efficiency and capacity over a wide range of ambient
temperatures
• Phase monitor to prevent operation if the unit is not properly phased
The ECU's are designed for easy installation and service. Major components are accessible for service
beneath external panels.
All units have internal disconnects. Depending upon state and local code requirements, this feature
may eliminate the need for an external breaker or disconnect.
1.2

Model Identification

The model identification number is found on the data sticker. Rating plate located on side panel.
ECU D A •••
D = Dual
Compressors 1
Refrigerant
A = R410A
Environmental
Control Unit
The standard configuration is with one compressor. Add "D" to the model number to indicate dual compresssors.
1
The standard configuration is with the supply (conditioned) air at the top of the unit and the return air below it. In the reverse air flow configuration, the return
2
is at the top and the supply air below it.
Filter acces in the standard configuration is through the hinged, sheet metal panel on the exterior of the air conditioner. The "I" configuration allows access to
3
the filter from inside the building through the return air grille.
1.3

Serial Number Date Code

A = January E = May
B = February F = June
C = March G = July
D = April H = August
AC •
Nominal Cooling
90 = 90,000 BTUH
120 = 120,000 BTUH
System Type
Air Conditioner
Power Supply
D = 460V,3ø,60Hz
E = 380V,3ø,50Hz
C = 208/230V,3ø,60Hz
Z = 575V, 3ø,60Hz
J = September
K = October
L = November
M = December
••• • •
Electric Heat – kW Special Option Code
F = Reverse Air Flow
000 = No Heat
090 = 9 kW I = Factory Installed
Filter Rack Allows
150 = 15 kW
Changing of Filters
180 = 18 kW
from the Return Air
Grille
Ventilation
A = No Outside Air
(standard)
C = Economizer
D = 2014
E = 2015
F = 2016
5
U A2
Internal Disconnect
2 A2 = Factory Installed
Internal Disconnect
3
Compressor
U = Scroll Compressor
ECU 12/2014 NEW
•••
Cabinet Color
100 = Beige
200 = Gray
(standard)