Product manual

5
ComPac 6/09-18
1.1 General DesCripTion
Marvair's ComPac
®
lines are a series of vertical wall-mounted air conditioning systems that provide
heating, cooling, and ventilation for electronic equipment shelters, process control centers, and other
applications with high internal heat gains. The series includes multiple sizes and nominal cooling
capacities from 24,000 to 72,000 BTUH. Resistance heating elements are available in various watt-
ages.
Marvair’s ComPac
®
I & ComPac
®
II air conditioners, models AVP24-72, feature an exclusive electronic
control board. The control board consolidates several of the electrical components and improves the air
conditioner’s reliability. The control board replaces the blower relay, the lockout relay, the compressor
time delay and the timed low pressure bypass. In addition, the control board 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.
The ComPac
®
I & ComPac
®
II models are designed for easy installation and service. Major components
are accessible for service beneath external panels.
All units have internal disconnects (optional on 460V). Depending upon state and local code require-
ments, this feature may eliminate the need for an external breaker or disconnect.
The ComPac
®
I A/C has a 0-15% manual outside air damper and the ComPac
®
II A/C has a factory
installed economizer for 100% free cooling with outside air.
1.2 Model Identication
The model identication number is found on the data sticker. Rating plate located on side panel.
Chapter 1 Description & Specications
1.3 Serial Number Date Code
A = January E = May J = September L = 2000 R = 2004 V = 2008
B = February F = June K = October M = 2001 S = 2005 Y = 2009
C = March G = July L = November N = 2002 T = 2006
D = April H = August M = December P = 2003 U = 2007
AVP ** AC * * * *
Air Source Vertical Package
*Ratings at 60 Hz.
Power Supply
A = 208/230V, 1ø, 60 Hz E = 380V, 3ø, 50 Hz
C = 208/230V, 3ø, 60 Hz F = 220V, 1ø, 50 Hz
D = 460V, 3ø, 60 Hz G = 220V, 3ø, 50 Hz
Electric Heat (kW)
00, 04, 05, 06, 08, 09, 10, 15
Conguration
N = ComPac
®
I A/C
C = ComPac
®
II A/C
System Type = Air Conditioner
Nominal Cooling*
24 = 24,000 BTUH 48 = 48,000 BTUH
30 = 29,400 BTUH 60 = 55,000 BTUH
36 = 35,000 BTUH 72 = 72,000 BTUH
42 = 41,500 BTUH
Special Option Code
R = Electric Reheat
U = Scroll Compressor