valent VX-352 Manuals

Manuals and User Guides for valent VX-352. We have 1 valent VX-352 manual available for free PDF download: Installation, Operation And Maintenance Manual

valent VX-352 Installation, Operation And Maintenance Manual

valent VX-352 Installation, Operation And Maintenance Manual (73 pages)

Dedicated Outdoor Air Unit

Brand: valent | Category: Air Handlers | Size: 3 MB

Table of Contents

General Safety Information
1
- Table of Contents
  2
- Unpacking
  3
- Inspection and Maintenance
  3
Receiving, Handling, Storage
3
- Cooling
  4
- Heating
  4
- Airflow Arrangement
  4
Product Overview
4
- Coils - Evaporator Coil
  5
- Compressors
  5
- Dampers
  5
Subassemblies
5
- Typical Unit Weights and Dimensions
  6
- Component Access
  6
Installation
6
Recommended Electrical and Gas Supply Entry Locations
11
- Condensate Overflow Switch
  12
- Condensate Drain Trap
  12
- Optional Coil Piping
  12
Piping Installation
12
Electrical Information
13
- Main Control Center Components
  14
- Electrical Cabinet
  14
- Controls Cabinet
  14
Control Center Components
14
- Phase Monitor
  15
- Variable Frequency Drive (VFD)
  15
Component Operation
15
Optional Component Operation
15
- Operating Conditions and Limitations
  16
- Digital Scroll Compressors
  16
- Air-Source Heat Pump
  16
- Airflow Monitor
  17
- Hot Gas Reheat Valve
  17
- VFD Compressor
  17
- Envelope Control
  17
- Dirty Filter Sensor
  18
- Microprocessor Control
  18
- Rotation Sensor
  18
- Frost Control
  18
- Factory-Installed Refrigeration System Components
  19
- Air-Source Heat Pump with Three Way Hot Gas Reheat
  20
- Four Way Reversing Valve
  21
- Electronic Expansion Valve (EXV)
  21
- Thermostatic Expansion Valve (TXV)
  21
- Low Limit Pressure Switch
  21
Start-Up Unit
22
- Voltage Imbalance
  23
- Special Tools Required
  23
- Pre-Start-Up Checklist
  23
- Start-Up Procedure
  23
- Start-Up Checklist - General
  24
- Motor Amp Draw
  24
- Fan RPM
  24
- Condensing Fans (PDX Only)
  24
- Start-Up Checklist - Packaged Direct Expansion (DX)
  25
- Start-Up Checklist - Air-Source Heat Pump (ASHP)
  26
- Supply/Exhaust Fan
  27
- Supply Fan (Plenum Type)
  27
- Fan
  27
Start-Up Components
27
- Airflow Monitoring
  28
- Communication Setup
  28
- Display and Navigation
  28
- Field Calibration
  28
- Optional Dirty Filter Switch
  29
- Optional Hot Gas Bypass Valve
  29
- Adjust the Air Seals
  30
- Sequence of Operation
  30
- Drive Belt
  30
Optional Energy Wheel
30
- Maintenance
  31
- Inspection
  31
- Cleaning
  31
- Energy Recovery Wheel Belt
  31
- Troubleshooting – Alarms
  32
- Microprocessor Controller
  32
- Optional Digital Scroll Compressor Controller
  32
Troubleshooting
32
- Troubleshooting – Refrigeration Circuit
  34
- Annually
  38
- Maintenance Frequency
  38
- Monthly
  38
Routine Maintenance
38
- Internal Filter Maintenance
  39
- Gas Furnace
  39
- Fan Motors
  39
Maintenance Procedures
39
- Reference - Venting Connection Locations
  41
- IG Venting Location
  41
- Reference - Rated Airflow
  43
- Contents
  52
- Exterior Air Handler Inspection
  53
- Interior Air Handler Inspection
  53
- Split Air Handler Inspection
  54
- Control Cabinet Inspection
  55
- Power Inspection
  55
- AHU Number Voltages
  55
- Main Voltage
  55
- Blowers and Blower Motors
  57
- VFD Parameters
  58
- Indirect Fired Gas Furnace
  59
- Component Inspection
  59
- IDF Furnace Performance Readings
  60
- Electric Heater
  61
- Electrical Inspection
  61
- Operational Inspection
  61
- Integral AC System
  62
- Condenser Fan Motor Amp Draw
  62
- Compressor Readings
  62
- Heat Pump
  64
- Chilled Water
  66
- Hot Water
  66
- Water Coil
  66
- Energy Recovery Wheel
  67
- System Inspection
  67
- System Start-Up
  67
- DDC Controller
  68
- Controller Serial Number
  68
- DDC Mode of Operation Testing
  69
- DDC Parameters
  70

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