MDL Solutions PFWSL-04 Manuals

Manuals and User Guides for MDL Solutions PFWSL-04. We have 1 MDL Solutions PFWSL-04 manual available for free PDF download: Installation, Operation & Service Manual

MDL Solutions PFWSL-04 Installation, Operation & Service Manual

MDL Solutions PFWSL-04 Installation, Operation & Service Manual (55 pages)

Brand: MDL Solutions | Category: Engine | Size: 5 MB

Table of Contents

Table of Contents
3
Technical Data

6
- General Description
  6
- General Specification
  7
  - 2-Pipe Systems
    7
  - 4-Pipe Systems
    8
- Coil Data
  9
  - 2-Pipe Systems
    9
- Dimensions
  10
- Valve Information (Optional)
  11
Installation

13
- Safety Precautions
  13
- Installation and Location
  14
- Front Panel Removal
  15
- Electrical Connection
  15
- Piping Connections
  16
- Valve and External Drain Pan Installation
  17
Maintenance

19
- General Maintenance
  19
- Regular Maintenance
  19
- Filter Installation & Cleaning
  19
- Fan Motor Assembly Maintenance
  20
Control Specifications: Complete Function PCB - S Type Control

21
- I/O Port Definitions
  21
- Wiring Diagrams
  22
  - Standard S Type Control PCB
    22
  - Master-Slave Networking Wiring Diagram
    23
- Configuration Settings
  24
- Control Logics for 2-Pipe System
  26
  - With Valve Configuration
    26
  - Without Valve Configuration
    28
- Control Logics for 4-Pipe System
  29
- Sleep Mode
  31
- Auto Fan Speed
  31
- Modulating Valve Control under Energy Saving Mode
  32
- Buzzer
  32
- Auto Restart
  32
- On/Off Switch on the Front Panel
  32
- Electric Heater Safety Switch
  32
- LED Display and Error Description
  33
- LED Display on Master/Slave Connection
  34
Networking System

35
- Master-Slave Network
  35
- Open Modbus Protocol
  39
Control Specifications: Flexible Function PCB - W Type Control

42
- Features
  42
- I/O Port Definitions
  42
- Onboard Configuration
  42
- Wiring Diagrams
  43
  - Standard W Type Control PCB
    43
  - Zone Control Wiring Diagram (On/Off Thermostat)
    44
- Control Logics Specification
  45
- LED Display and Error Description
  45
User Interface

46
Sensor Resistance R-T Conversion Table

50
Troubleshooting

52
Accessories Descriptions

53
- Electrical Heater
  53
- Auxiliary External Drain Pan
  54
- ABS Supporting Feet
  54

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