Bosch 330PN User Manual

Addendum No. 1
1
Wicomico County Purchasing
125 N. Division St. Room B-3
Salisbury, MD 21801
Ph. 410-548-4805 Fax 410-334-3130
Date: 8/29/2014
Addendum # 1
Tankless Water Heater System Installation
Pre-Bid Meeting 8/26/2014
Attendance – See attached sign in sheet
Will Preneta reviewed the scope of work
Questions/Answers
1. There will be a dumpster on site for scrap metal supplied by the County
2. Vent kit supplied by the County and vent piping from the kits through the
roof has to be purchased by the contractor
3. Water manifold connections need to be identical in size and length
4. Electrical disconnect needs to be provided for each rack
5. Pumps require a fusable disconnect
6. Materials list (see below)
Materials List – Provided by the Owner (the vent pipe is for part number ref only
for contractors)
Quantity Catalog Nbr Description
14 9W894N C1210 ES C NG Tankless Water Heater
13 5W650LF 44443wpr ISO valve sets for water heaters
1 5H966C M3ST120R5A Storage tank ASME
4 2113418 Stratos Z 1.25 X 3-3.5 Wilo pump
4 276094 1 1/2 FPT Flange Kit
4 2113417 Recirculation pump strato 1.25 X 3X2.5 Wilo
4 2760195 1 1/2 flanges
3 7736501253 back to back vent kit starter

Bosch 330PN Specifications

General

Brand	Bosch
Model	330PN
Category	Water Heater
Language	English

Summary

Addendum Details

Pre-Bid Meeting Information

Details about the pre-bid meeting date and attendance.

Questions and Answers

Addresses contractor questions regarding the installation.

Materials List

Lists required materials for the tankless water heater installation.

Key to Symbols and Safety Instructions

Key to Symbols

Explains symbols used in the manual for clarity.

Safety Instructions

Provides essential safety guidelines for installation and operation.

Appliance Details

Features

Highlights the key features of the tankless water heaters.

Specifications (Technical Data)

Presents detailed technical data and specifications for the appliance.

Installation Instructions

Specialized Tools

Lists specialized tools required for proper installation.

Venting Requirements

Details requirements and procedures for venting the appliance.

Combustion Air Requirements

Outlines requirements for providing adequate combustion air.

Gas Piping and Connections

Provides instructions for safe and correct gas line installation.

Operation Instructions

LCD Display Description

Explains the functions and readouts of the appliance's LCD display.

Safety Before Operating

Crucial safety precautions to follow before operating the water heater.

Temperature Selection

Instructions on how to set the desired hot water temperature.

Maintenance and Service

Annual Maintenance

Outlines the schedule and tasks for yearly maintenance.

Winterizing for Seasonal Use

Procedures for preparing the unit for seasonal storage to prevent freezing.

Mineral Scale Build-Up

Information on scale prevention, detection, and removal.

Troubleshooting

Error Code Diagnostics

Lists error codes and their corresponding causes and solutions.