Table of Contents | Amtrol WH-9 Classic Series, WH-7 Classic Series

1. TABLE OF CONTENTS

2.	Pre-Installation Checklist	2	10.	Wiring All Ready-To-Run (RTR) Models	23
3.	Required Components and Accessories Checklist	3	11.	Startup Procedure For All Models	25
4.	WH-7 & 9 Classic Series Piping Installation	4	12.	Setting the Smart Control™	26
5.	Top Down™ TD-Series Piping Installation	6	13.	Troubleshooting	27
6.	Ready-To-Run RTR-Series Piping Installation	8	14.	Replacement Parts	28
7.	WHS Premier Series Piping Installation	10	15.	Cleaning the BoilerMate® Heat Exchanger	29
8.	Wiring All Smart Control™ Models	12	16.	General Safety Information	30
9.	Wiring All Dial Control Models (Except RTR Models)	20

2. PRE-INSTALLATION CHECKLIST

IMPORTANT STEPS AND DECISIONS REQUIRED BEFORE INSTALLATION

☐THIS PRODUCT MUST BE INSTALLED AND MAINTAINED BY A LICENSED PROFESSIONAL. IN ADDITION TO THE INSTRUCTIONS IN THIS MANUAL, FOLLOW ALL APPLICABLE LOCAL AND STATE CODES OR IN THE ABSENCE OF SUCH CODES, THE CURRENT EDITIONS OF THE NATIONAL PLUMBING CODE AND THE NATIONAL ELECTRIC CODE.

☐DRIP PAN AND DRAIN: This appliance should not be installed in an area where leakage of the tank or connections can result in damage to the area adjacent to the appliance or to lower floors of the structure. When such locations cannot be avoided, a suitable drain pan, adequately drained and kept clear, must be installed under the appliance.

☐CAUTION: Determine whether your water is corrosive or acidic, and that there are no suspended solids, toxic or other substances or abnormally high chlorine levels in the water that could damage or affect the BOILERMATE® or the rest of your plumbing system.

USE GLYCOL ONLY WITH DOUBLE-WALLED HEAT EXCHANGER MODELS. Glycol is a hazardous substance. To avoid seepage or leakage of glycol to surfaces where humans or animals can ingest it, use glycol only in double-walled units, so that any leaks will most likely be released to the atmosphere. However, a leak to a surface area may still occur, so any use of glycol must be monitored closely and humans and animals should be protected from contact with the unit.

Do not connect the BOILERMATE® domestic supply with baseboard or other space heating units or elements. Any

contaminants in the baseboard units will contaminate the potable water in the BOILERMATE® and also adversely affect its performance.

☐Wiring Options. Select either a Non-Priority or Priority System:

Two options are available when wiring the controls of the BOILERMATE® in the space heating system (boiler and distribution elements).

1.Non-Priority System - The controls of the BOILERMATE® must be wired as a separate heating zone with a standard zone valve or a separate circulator dedicated to the BOILERMATE® “zone”.

NOTICE: In this non-priority option, the BOILERMATE® will be supplied just as another zone. This means that if all space heating zones call for hot boiler water at the same

time, the BOILERMATE® may not be supplied with enough hot boiler water to “recover” adequately. The delivery of domestic hot water will be diminished. In many, but not all cases, this is not a problem because the routine oversizing of boiler output is adequate for both loads.

2.Priority System - Under this wiring option the BOILERMATE® will be supplied before space heating.

In limited circumstances, space heating can be lost in the home in this priority mode. Any demand for space heating is postponed until the BOILERMATE® has reached its set temperature. This delay in supplying the space heating zones is usually not noticed by the inhabitants of the living spaces. However, in the event of certain malfunctions such as circulator or thermostat failure, space heating could be delayed indefinitely. If undetected and uncorrected, freezing damage to piping could result.

☐Select Circulator versus Zone Valve

The flow of hot boiler water to the BOILERMATE® can be controlled with either a motorized zone valve or a circulator.

1.Separate circulator. The recommended way to provide adequate flow through the BOILERMATE® heat exchanger is to use a separate dedicated circulator with a minimum flow rate of 5 gpm. This option may be used even though the heating system utilizes zone valves.

2.Zone valve (system flow of 4-8 gpm). If a zone valve is to be used, a minimum flow rate of 5 gpm with all zones in use is required. A full-port zone valve should be used.

☐All installations require a low-water cut-off or automatic fill valve on your boiler system to reduce the risk of boiler water loss.

☐Steam boiler installations require a low-water cut-off which is also required by most codes.

☐Installation of a vacuum breaker is required to prevent damage to the BOILERMATE® when drained. There must be no valves installed between the vacuum breaker and

BOILEMATE®.

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RTR, Top Down, WH-7 Classic Series, WH-9 Classic Series specifications

Amtrol is a well-respected name in the water heater industry, and its Classic Series models, such as the WH-9 and WH-7, are recognized for their quality and performance. These water heaters are designed to meet the hot water needs of residential and commercial applications, offering efficient solutions for those who require a reliable supply of hot water.

The WH-9 Classic Series is a standout model, boasting a 9-gallon capacity, making it ideal for smaller households or specific applications that require a compact solution. This model is designed with a unique top-down heating system, which ensures that water is heated efficiently from the top down, minimizing energy waste. The tank is insulated with high-density foam, reducing standby heat loss and enhancing energy efficiency. This model features a glass-lined steel tank that is resistant to corrosion, coupled with a magnesium anode rod that further extends the tank’s lifespan.

On the other hand, the WH-7 Classic Series offers a slightly smaller 7-gallon capacity, making it a perfect choice for tight spaces or systems where only a limited quantity of hot water is needed. Similar to the WH-9, the WH-7 also utilizes advanced insulation technology to maintain water temperature and reduce energy consumption. The compact design of both models allows for easy installation in various locations within a home or business.

Both the WH-9 and WH-7 feature a user-friendly thermostat for precise temperature control. This allows users to adjust the water temperature to their specific needs, ensuring optimal comfort and safety. The Classic Series is built with high-quality components, including durable heating elements that provide quick recovery times, delivering a steady flow of hot water when needed.

Another notable characteristic of the Amtrol Classic Series is its commitment to sustainability. The company integrates eco-friendly technologies into their products to reduce energy consumption, which is beneficial for both the environment and the consumer’s utility bills.

In conclusion, Amtrol’s WH-9 and WH-7 Classic Series water heaters offer efficient, reliable hot water solutions for varying residential and commercial needs. With their innovative heating technologies, durable construction, and user-friendly features, these models stand out in the competitive water heater market, making them a preferred choice for many homeowners and businesses alike. Whether you opt for the 9-gallon or the 7-gallon capacity, you can be confident in receiving consistent and efficient hot water when you need it most.