HTP RT-180 User Manual

120 Braley Rd. P.O. Box 429 East Freetown, MA 02717-0429 www.htproducts.com
LP-505 REV. 4.29.14
Hydra Smart
Residential
INSTALLATION
START-UP
MAINTENANCE
PARTS
Models*
RT-180 / RT-199
*A suffix of “LP” denotes propane gas
*A suffix of “N” denotes natural gas
NOTICE: HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors
in literature.
NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.
The surfaces of these products contacted by consumable water contain less than 0.25% lead by weight, as required by the Safe
Drinking Water Act, Section 1417.
IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING
PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE. DO NOT STORE GASOLINE OR OTHER FLAMMABLE VAPORS
AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER WATER HEATER.
WHAT TO DO IF YOU SMELL GAS
 Do not try to light any water heater.
 Do not touch any electrical switch.
 Do not use any phone in your building.
 Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
 If you cannot reach your gas supplier, call the fire department. Installation and service must be provided by a qualified installer,
service agency, or the gas supplier.

HTP RT-180 Specifications

General

Brand	HTP
Model	RT-180
Category	Boiler
Language	English

Summary

Safety Regulations

Operation and Installation Warnings

Covers crucial safety precautions for operating and installing the water heater.

Improper Combustion

Addresses hazards related to improper combustion and ventilation air.

Gas Safety

Safety guidelines concerning gas supply and potential hazards.

Servicing Safety Precautions

Technical Specifications

Prepare Water Heater Location

Before Locating the Water Heater

Guidelines and considerations for selecting the water heater installation site.

Leveling Installation

Clearances for Service Access

Exhaust Vent and Intake Pipe Installation

Prevent Combustion Air Contamination

Measures to prevent contamination of combustion air for safe operation.

Wall-Mounting the Water Heater

Venting Requirements

Intake Pipe and Exhaust Vent Guidelines

General rules and requirements for vent and intake pipe installation.

Approved Vent Materials

Vent Termination Guidelines

Install the Condensate Drain

Gas Piping Installation

Gas Pipe Sizing Tables

Tables providing guidance on sizing gas supply pipes based on capacity.

Gas Connection Requirements

Specifications and requirements for connecting the gas supply.

Adjusting Gas Pressure

Procedures for setting and verifying gas pressure for proper operation.

Water Piping

General Plumbing Connection Guidelines

Piping the Water Heater

Connect Electrical Power and Initial Startup

Wiring Information

Details on electrical connections, grounding, and wiring diagrams.

DIP Switches Configuration

Operating System Instructions

Control Panel Overview

Overview of the water heater's control panel and buttons.

LCD Display Descriptions

Start-Up Sequence

Changing DHW Set-Point

Installer Mode

Error Mode

Error Tree Analysis

Diagnostic flowcharts for troubleshooting error codes.

Final Installation Checklist

Troubleshooting

Maintenance Procedures

Limited Warranty Information

Massachusetts Installation Requirements