Amtrol HM-80L, HM-41Z, HM-80Z, HM-41L warranty Table Of Contents, Pre-Installation Checklist

1. Table Of Contents

2.	Pre-Installation Checklist	2	7.	Mechanical Aquastat Wiring	.......................................... 8
3.	Required Components and Accessories Checklist	3	8.	Startup Procedure	9
4.	HYDROMAX™ Plumbing	4	9.	Troubleshooting	9
5.	Ener-G-NET™Wiring	5-6	10.	General Safety Information	10
6.	Ener-G-NET™Setup & Adjustment	7	11.	Replacement Parts	11

2. Pre-Installation Checklist

IMPORTANT STEPS AND DECISIONS REQUIRED BEFORE INSTALLATION

❑THIS PRODUCT MUST BE INSTALLED AND MAINTAINED BY A LICENSED PROFESSIONAL PLUMBER, ELECTRICIAN, AS APPLICABLE. IN ADDITION TO THE INSTRUCTIONS IN THIS MANUAL, FOLLOW ALL APPLICABLE LOCAL AND STATE CODES INCLUDING MA CMR 248 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 water heater or the rest of your plumbing system.

USE GLYCOL ONLY WITH DOUBLE-WALLED HEAT EXCHANGER MODELS. Glycol is a poisonous 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 water heater domestic supply with baseboard or other space heating units or elements. Any contaminants in the baseboard units will contaminate the potable water in the water heater 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 water heater in the space heating system (boiler and distribution elements).

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

NOTICE: In this non-priority option, the water heater 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 water heater 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 water heater 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 water heater 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 water heater can be controlled with either a motorized zone valve or a circulator.

1.Separate circulator. The recommended way to provide adequate flow through the water heater heat exchanger is to use a separate dedicated circulator. This option may be used even though the heating system utilizes zone valves.

2.Zone valve If a zone valve is to be used, a flow rate of 3 to 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 water heater when drained. There must be no valves installed between the vacuum breaker and water heater.

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