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PAW-280PAH2M
Panasonic PAW-280PAH2M User Manual
114 pages
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AHU Kit – Installation Instructions – 2021
Air Handling Unit Kit
Installation Instructions
P
A
W-160MAH2(L/M)
P
A
W-280MAH2(L/M)
P
A
W-560MAH2(L/M)
P
A
W-280P
AH2(L/M)
P
A
W-280P
AH3M
2
Table of Contents
Default Chapter
4
Table of Contents
4
1 General Information and Safety Notes
6
General Information
6
Safety Notes
8
Instructions for the Safe Handling of R32
9
Calculating the Density Limit
10
Preventing Leakages
18
Detecting Leaks
19
Repairing Leaks
19
Warranty Policy
19
2 Ventilation Theory and Air Handling Units
20
Purpose of Air-Conditioning
20
Mechanical Ventilation Systems
21
Air Handling Units
21
3 Product Description
24
General Description
24
Scope of Supply
25
System Lineup
31
System Overview
33
Technical Data
37
4 Installation
47
Installation of AHU Kit
47
MAH2/PAH2 Generation
47
PAH3 Generation
49
Installation of Refrigerant Piping
51
Installation of Expansion Valve
51
Installation of Thermistors
53
Installation of Thermistor on Gas Pipe
54
Installation of Thermistor on Liquid Pipe
55
Installation of Thermistor on Heat Exchanger Pipe Middle
55
Installation of Thermistor for Suction and Discharge Air Stream
56
Matching Outdoor Unit Capacity with AHU Kit Capacity
56
5 Electrical Wiring
64
General Precautions on Wiring
64
Connection of Wiring to Terminals
64
Terminal Board Layout
66
MAH2/PAH2 Models
66
PAH3M Model
71
Wiring Layout
74
Wiring System Diagrams
87
Connection of External Signal Lines
95
6 Test Run
100
7 Control
101
Remote Controller
101
Thermostat
101
Control and Display Elements
101
Operation
102
Initial Settings
107
Error Codes
111
Maintenance and Service
111
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Panasonic PAW-280PAH2M Specifications
General
Category
Air Handlers
Model
PAW-280PAH2M
Cooling Capacity
28.0 kW
Heating Capacity
31.5 kW
Air Flow Rate
4800 m³/h
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