MDL Solutions PCH-20-V Manuals

Manuals and User Guides for MDL Solutions PCH-20-V. We have 1 MDL Solutions PCH-20-V manual available for free PDF download: Installation, Operation And Service Manual

MDL Solutions PCH-20-V Installation, Operation And Service Manual

MDL Solutions PCH-20-V Installation, Operation And Service Manual (98 pages)

Brand: MDL Solutions | Category: Air Conditioner | Size: 9 MB

Table of Contents

Table of Contents
3
Technical Data

6
- General Specification
  6
  - 2-Pipe Systems
    6
  - 4-Pipe Systems
    8
  - A.1.2. 4-Pipe Systems
    8
- Coil Data
  9
  - 2-Pipe Systems
    9
  - A.2.1. 2-Pipe Systems
    9
- Dimensional Drawings
  10
- A.3. D Imensional D Rawings
  10
- Valve Information
  21
  - 2-Way Valve Body
    21
  - A.4. V Alve I Nformation
    21
Safety Precautions

22
- Installation
  23
  - Standard Configurations and Accessories
    23
  - B.1. I Nstallation
    23
  - Operating Limits
    24
  - Before Installation
    24
  - B.1.2. Operating Limits
    24
  - Installation Location
    25
  - B.1.4. Installation Location
    25
  - Installation and False Ceiling Clearance
    26
  - Pipe Works
    27
  - Water Connections
    27
  - Valve Configurations
    27
  - B.1.6. Pipe Works
    27
  - External Drain Pan
    29
  - Fresh Air Renewal Connection
    29
  - Branch Duct Connection
    32
  - Branch Duct Installation Procedure
    33
- Suspension Bolts Layout and False Ceiling Opening
  34
- Interconnecting Wiring
  40
  - Wiring Procedures
    40
  - B.3.1. Wiring Procedures
    40
  - Mounting Front Panel Assembly
    41
  - Filter Removal
    41
  - Getting Start-Up
    42
  - B.3.4. Getting Start-Up
    42
- Maintenance
  43
- Air Vent and Water Purge
  44
- Replacing Motor and Fan Blower
  44
- Replacing Condensate Pump
  45
- Replacing Control Box
  46
- Install Electric Heater
  47
Control Specifications: Skusa-Ncgh-001-Aecm

48
- I/O Port Definitions
  48
- Wiring Diagram
  50
- C.2. W Iring D Iagram
  50
- Configuration Settings
  52
- Control Logics for 2-Pipe System
  53
  - With Valve Configuration
    53
  - Without Valve Configuration
    56
- Control Logics for 4-Pipe System
  59
- Sleep Mode
  61
- Auto Fan Speed
  62
- Modulating Valve Control under Energy Saving Mode
  62
- Swing / Louver
  62
- Buzzer
  63
- Auto Restart
  63
- On/Off Switch on the Front Panel
  63
- Drain Pump
  63
- Float Switch
  64
- Electric Heater Safety Switch
  64
- C.14. F Loat S Witch
  64
- Led Indication and Error Description
  65
- LED Indication on Master/Slave Connection
  66
Networking System

67
- Master-Slave Network
  67
- Open Modbus Protocol
  72
Control Specifications: Skusa-Ncgh-002/003-Aecm

76
- Features
  76
- I/O Port Definitions
  76
- Onboard Configuration
  77
- Wiring Diagrams
  78
- Control Logic Specification
  82
  - Unit Power ON/OFF
    82
  - Alarm Protection and Error Display
    82
  - Drain-Pump Run Management
    82
  - Swing and Louver Control
    82
  - Modulating Signal Input
    82
- Led Indication and Error Description
  83
User Interface

84
- Remote Handset
  84
- Wired Wall Pad
  85
  - Wall Pad Operation Guidelines
    86
  - EC Unit RPM Setting
    89
Sensor Resistance R-T Conversion Table

90
Troubleshooting Guide

92
Exploded Diagrams & Sub-Assembly Descriptions

93
- Exploded View for Single Fan Model
  93
  - Spare Parts of Single Fan Model
    94
- Exploded View for Twin Fan Model
  95
  - Spare Parts of Twin Fan Model
    96
- Optional Parts
  96
- Accessories
  97

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