Bard Q-TEC Q A4D Series Manuals

Bard Q-TEC Q A4D Series Manuals

Manuals and User Guides for Bard Q-TEC Q A4D Series. We have 1 Bard Q-TEC Q A4D Series manual available for free PDF download: Installation Instructions Manual

Bard Q-TEC Q A4D Series Installation Instructions Manual

Bard Q-TEC Q A4D Series Installation Instructions Manual (97 pages)

Packaged Air Conditioner

Brand: Bard | Category: Air Conditioner | Size: 4.22 MB

Table of Contents

User's Application Guide and Technical Product Overview

4
Table of Contents

26
- Getting Other Information and Publications
  
  28
  - Q-TEC Model Nomenclature
    29
  - Shipping Damage
    29
  - Unit Removal from Skid
    30
    
    Air Seal under Q-TEC Unit
    30
  - Removal of Q-TEC Unit from Skid
    30
    
    General
    31
    
    Handling Unit after Removal from Skid
    31
  - Fan Assembly Removal
    31
    
    Q-TEC Unit on Appliance Cart
    31
    
    Installation with Duct-Free Plenum
    32
    
    Minimum Installation Height
    32
  - Ducted Application
    32
    
    Duct Work
    33
    
    Filters
    33
  - Supply Duct Connections
    33
  - Filter Location
    33
    
    Switching Filter Sizes
    34
  - Fresh Air Intake
    34
  - Vent Options
    34
    
    Barometric Fresh Air Damper (Standard)
    34
    
    Bend Filter Tabs down
    34
    
    Filter Tabs in up Position
    34
  - Fresh Air Damper Assembly
    34
    
    Commercial Room Ventilator (Option)
    35
    
    Q-TEC Energy Recovery Ventilator (Option)
    35
- Installation
  
  36
  - Basic Installation Design and Application Planning
    36
  - Mounting the Unit
    36
  - Remove Compressor Shipping Brackets
    36
  - Figure 13A
    37
  - Figure 13B
    37
    
    Condensate Drain
    38
  - Remove Locking Screws from Wheels
    38
  - Optional Side Drain (Side View)
    38
  - Standard Rear Drain
    38
    
    Optional Rear Drain Kits
    39
  - Rear Drain (Top View)
    39
  - Figure 18A
    40
  - Figure 18B
    40
  - Figure 18C
    41
  - Figure 18D
    42
    
    Ducted Applications
    43
    
    Free Blow Applications
    43
    
    Indoor Ducted and Non-Ducted Applications
    43
    
    Indoor Return Airflow
    43
    
    Indoor Supply Airflow
    43
    
    Placement
    43
    
    Figure 7 Figure
    44
  - Unit Dimensions
    44
    
    High Voltage Connections
    45
    
    Wiring - Main Power
    45
    
    Balanced Climate TM Feature
    46
    
    Dehumidification Feature
    46
    
    Low Ambient Control
    46
    
    Low Voltage Connections
    46
    
    Unit Shutdown Feature
    46
    
    Ventilation Features
    46
    
    Wiring - Low Voltage
    46
    
    CO 2 Controllers
    47
    
    Freeze Protection Thermostat
    47
    
    Humidity Controls
    47
    
    Wall Thermostats
    47
  - Thermostat Wire Size
    47
  - Figure 21
    48
  - Figure 21 Thermostat Connections
    48
  - Figure 22 Thermostat Connections
    49
- Start up
  
  50
  - General
    50
  - Topping off System Charge
    50
  - Safety Practices
    50
  - Vent Connection Plug
    50
  - Pressure Service Ports
    50
  - Important Installer Notes
    51
  - Service Hints
    51
  - High and Low Pressure Switches
    51
  - Three Phase Scroll Compressor Start up
    51
  - Information
    51
  - Compressor Control Module
    51
    
    Dehumidification Models
    51
    
    Pressure Switch Lockout
    51
    
    Alarm Output
    52
    
    Figure 23
    52
    
    Figure 23 Compressor Logic Control Board
    52
    
    Freeze Stat Switch
    52
    
    High Pressure Switch
    52
    
    High Pressure Switch and Lockout Sequence
    52
    
    Intelligent Reset
    52
    
    Low Pressure Switch
    52
    
    Over and under Voltage Protection
    52
    
    Troubleshooting Compressor Logic CCM
    52
    
    Logic Control Board
    53
  - Phase Monitor
    53
  - Condenser Fan Operation
    53
  - Sequence of Operation
    53
  - Figure 24 CCM LED Fault Illumination
    53
    
    Balanced Climate TM Mode
    54
- Service
  
  55
  - Troubleshooting ECM 142R Outdoor
    55
    
    Fan Motors
    55
    
    Replacing the Motor
    56
    
    Troubleshooting ECM 142R Outdoor Fan Motors
    56
    
    Troubleshooting ECM Indoor Blower Motors
    57
    
    Figure 25 Control Disassembly
    58
    
    Figure 26 Winding Test
    58
    
    Figure 27 Drip Loop
    58
    
    Replacing ECM Control Module
    58
    
    Figure 28 Control Connector Motor Half
    59
    
    Figure 9 Figure
    59
    
    Table 6
    59
    
    Fan Blade Dimensions
    60
    
    Fan Blade Setting Dimensions
    60
    
    Figure 29 Fan Blade Setting
    60
    
    Figure 30 Fan Shroud Removal
    60
    
    R-410A Refrigerant Charge
    60
    
    Removal of Fan Shroud
    60
    
    Cooling Pressure - Standard Airflow
    61
    
    Table 8A
    61
  - Cooling Pressure - Balanced Climate Airflow
    61
  - Table 9
    62
  - Electrical Specifications Q**A4D Series
    62
  - Table 10
    63
  - Indoor Blower Performance
    63
  - Electric Heat
    63
- Graphs
  
  64
  - Graph 1
    64
    
    Q36A4D FAD Ventilation Delivery
    64
  - Q42A4D FAD Ventilation Delivery
    64
  - Graph 3
    65
    
    Q48A4D FAD Ventilation Delivery
    65
    
    Table 2
    88

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