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Table of Contents
Stainless Steel, Indirect Water Heaters
INSTALLATION AND OPERATING INSTRUCTIONS
1. The heat transfer-medium must be water or other nontoxic fluid having a
toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial
Products, 5th edition.
2. The pressure of the heat transfer medium must be limited to a maximum of
30 PSIG by an approved safety or relief valve.
980155 Rev C - 02/18
Mega-Stor
CAUTION
5003502
II
®
Velocity Boiler Works, LLC
P.O. Box 14818
3633 I Street
Philadelphia, PA 19134
www.velocityboilerworks.com
VELOCIT
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Table of Contents
Related Manuals for Velocity MS2-050
Summarization of Contents
IMPORTANT INFORMATION - READ CAREFULLY
Installation Compliance and Requirements
Ensures installation adheres to local codes, wiring standards (NEC/CEC), and mandates licensed professionals in specific regions.
WARNINGS FOR THE HOMEOWNER
General Safety and Operational Precautions
Covers following instructions, product maintenance, installation qualifications, and leak/freezing risks.
PRODUCT DESCRIPTION
Unit Functionality and Heat Source Conditions
Describes the IWH's purpose and conditions for using alternative heat sources like solar collectors.
SPECIFICATIONS
Performance Ratings, Diagrams, and Dimensions
Details AHRI performance ratings, unit diagrams, physical specifications, and connection sizes for various models.
BEFORE STARTING INSTALLATION
Pre-Installation Checks and Site Preparation
Covers code compliance, water quality checks, manual review, and proper sizing before beginning installation.
LOCATING THE INDIRECT WATER HEATER
Location Selection Criteria
Addresses load-bearing capacity, placement to mitigate leak damage, and considerations for boiler proximity and pipe insulation.
PIPING
Boiler Side Piping
Instructions for connecting the IWH to the boiler, including fluid, pressure, sizing, diagrams, and warnings.
Domestic Side Piping
Details domestic water connections, controls, safety devices, optional fittings, and diagrams.
WIRING
General Wiring Notes and Standards
Covers general wiring compliance with codes and standards for system connections.
Circulator and Zone Valve Wiring Diagrams
Provides diagrams and explanations for wiring circulator zone systems and zone valves.
Control System Safety and Operation
Emphasizes using the correct control for boiler water flow and warns against alternative temperature controls.
START-UP AND CHECK-OUT
System Initialization and Operational Verification
Outlines procedures for system start-up, leak checks, electrical verification, and operational checks.
Temperature Setting and Scald Risk Management
Details temperature control adjustment and provides information on scald risk based on temperature.
MAINTENANCE
Routine Inspection and Component Care
Covers anode rod inspection, control verification, piping checks, lubrication, and system dependency notes.
Anode Rod Safety and Replacement Procedures
Provides critical safety warnings and instructions for anode rod inspection and replacement.
PARTS
Replacement Parts Identification and Listing
Lists key replacement parts for the indirect water heater, including part numbers and descriptions.
APPENDIX A: SIZING
Residential Sizing Guidelines and Tables
Provides tables and guidance for selecting IWH models based on home size and hot water demand.
Commercial Sizing Methodology
Advises methods for determining domestic hot water demand in commercial settings for proper IWH selection.
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