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Marviar MGA3150A
ACS Marviar MGA3150A Manuals
Manuals and User Guides for ACS Marviar MGA3150A. We have
1
ACS Marviar MGA3150A manual available for free PDF download: Installation & Operation Manual
ACS Marviar MGA3150A Installation & Operation Manual (53 pages)
7.5, 10, 12.5 & 15 Ton 10EER Vertical Wall Mount Air Conditioners
Brand:
ACS
| Category:
Air Conditioner
| Size: 2 MB
Table of Contents
Table of Contents
3
General Description
5
Capacities, Weights and Filter Sizes
6
Model Identification
6
Serial Number Date Code
6
Table 1 Efficiency and Capacity Ratings at ANSI/AHRI Standard 390
7
Table 2 SCFM @ Various External Static Pressures
7
Table 3 Single Compressor Cooling Performance (BTUH) at Various Outdoor Temperatures
7
Table 4 Dual Compressor Cooling Performance (BTUH) at Various Outdoor Temperatures
8
Table 5 Economizer Cooling Performance
8
Table 6 Ambient Temperature Operating Ranges
8
Table 7 Shipping Weights & Dimensions
9
Table 8 Return Air Filter Sizes
9
Table 9 Refrigerant Charge
9
General Operation
10
Programmable Logic Controller (PLC)
10
1.7 Unit Operation
12
Figure 1. PLC
12
Optional Controls and Packages
13
1.9 Electrical Operation
14
Figure 2. Typical Electrical Schematic
15
Chapter 2 Electronic Control Board
16
Introduction
16
Installation and Replacement
17
PCB Details and Information
17
Operation
17
Sequence of Operation
21
Figure 3. Enthalpy Sensor & Temperature Control Points
26
Figure 4. Dry Bulb Sensor
27
Chapter 3 Installation
33
Equipment Inspection
33
Installation Requirements
33
Installation Materials
34
Table 10 Minimum Clearances
34
Table 11 Voltage Limitations
34
Porting and Duct Work
36
Top Flange Installation
36
Installing the Lifting Brackets
37
Mounting the Unit
37
Figure 5. Top Flange and Lifting Bracket Installation
37
Electrical Connections
38
Figure 6. Wall Mounting Detail
38
Figure 7A. Humidistat Wiring to a Marvair Air Conditioner with Reheat
40
Figure 7B. Thermostat Connection Diagram
41
Figure 7C. Commstat™ 4 Wiring Detail
41
Chapter 4 Start-Up
42
Check-Out of Cooling Cycle
42
Check-Out of Heating Cycle
42
Chapter 5 Troubleshooting
43
Overview
43
Failure Symptoms Guide
44
Compressor Troubleshooting
44
Chapter 6 Maintenance
46
Scheduled Maintenance
46
Chapter 7 Warranty
47
Limited Product Warranty
47
Start-Up Check List
48
Fresh Air Damper Installation
52
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