ECR Dunkirk PWB-4D User Manual

GAS-FIRED
HOT WATER BOILERS
P/N 14683002, Rev. A [8/2011]
PWB SERIES
An ISO 9001-2008 Certified Company
ECR International, Inc.
2201 Dwyer Avenue,
Utica NY 13501
www.ecrinternational.com
MODEL PWB
Electronic
Intermittent Ignition
MODEL PVWB
Continuous Pilot
H

ECR Dunkirk PWB-4D Specifications

General

Brand	ECR
Model	Dunkirk PWB-4D
Category	Boiler
Language	English

Summary

PWB Series Gas-Fired Hot Water Boilers

Boiler Ratings and Capacities

Before You Start

Locating the Boiler

Guidelines for selecting the ideal location for boiler installation.

Fresh Air for Combustion

Installation - System Piping

Safety Relief Valve and Gauge Installation

Instructions for installing the safety relief valve and temperature pressure gauge.

Chimney and Vent Pipe Connection

Connecting the Vent Damper

Procedure for attaching the vent damper to the boiler's flue outlet.

Vent Damper Operation

Manual Vent Damper Operation

Instructions on how to manually control the vent damper's position.

Gas Supply Piping

Connecting the Gas Piping

Steps and rules for connecting the gas supply line to the boiler.

Electrical Wiring

Thermostat Installation and Location

Vent Damper and Circulator Wiring

Intermittent Ignition Wiring Diagram

Standing Pilot Wiring Diagram

Safety - Before Operating

Intermittent Ignition Boiler Operation

Operating instructions for boilers with intermittent ignition systems.

Continuous Pilot Boiler Operation

Boiler Operating Modes and Safety

Maintaining Your Boiler

Boiler Flue Passages and Cleaning