Precision HWST Electric Boiler Manuals

Manuals and User Guides for Precision HWST Electric Boiler. We have 1 Precision HWST Electric Boiler manual available for free PDF download: Installation And Operating Instructions Manual

Precision HWST Installation And Operating Instructions Manual

Precision HWST Installation And Operating Instructions Manual (14 pages)

ELECTRIC HOT WATER & STEAM

Brand: Precision | Category: Boiler | Size: 0.57 MB

Table of Contents

Table of Contents
3
1 General Information

4
- Introduction
  4
- Local Regulations
  4
- Recommendations
  4
- Preventative Maintenance
  4
- Water Treatment
  4
2 Storage & Handling

4
- Receiving
  4
- Storage
  4
- Uncrating
  5
- Placement
  5
3 Installation

5
- Piping Connections
  5
- Electrical Connections
  6
- Power Feed Wiring
  6
- Grounding Conductors
  6
- Control Wiring
  6
- Filling the System
  6
4 Pre-Startup Inspection

7
- Minimum Equipment for Startup
  7
- Mechanical System Checks
  7
- Plumbing Connections
  7
- Feedpump / Circ Pumps
  7
- System Flush
  7
- Valves
  7
- Electrical System Checks
  7
- Heating Elements
  8
- Inspection Power/Voltage
  8
5 Startup Instructions

8
- Control Settings
  8
- Controller
  8
- High Limit
  9
- Low Water Cutoffs
  9
- Low Limit Sensors
  9
- Operating Instructions
  9
- Electric Door Interlocks
  9
- 120-Volt Power Source
  9
- Alarm and Reset Circuits
  9
- Sequencing of Element Circuits
  9
6 Sequence of Operation

10
- Activation of Heating Element Circuits
  10
- Contactors
  10
- Fuses
  10
- Sequencing Controls
  10
- Staged Control Circuit
  10
- Proportional Step Controls
  10
- Step Control Sequence
  10
- Progressive Sequence Step Controls
  10
- Linear Sequence Step Controls
  10
- Recycle Feature
  11
- Manual Toggle Switches
  11
Preheat Switch

11
7 Operational Testing

11
- Standard Controls
  11
- 135-Ohm Controllers
  11
- Solid State Controls
  11
- Outdoor Reset Controls
  11
- 135-Ohm Type Outdoor Reset Controls
  11
- Solid State Dual Reset Controls
  12
8 Preventative Maintenance

12
- General
  12
- Water Treatment
  13
- Electrical System Maintenance
  13
- Boiler Mechanical System Maintenance
  13
- Element Replacement Procedure
  14

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