Table of Contents
Advertisement
Pre-Installation Checklist ................................................................. 2
Required Components and Accessories Checklist ......................... 3
Plumbing .................................................................. 4
®
Wiring ....................................................................5-6
™
Ener-G-NET Setup & Adjustment ................................................... 7
PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY
ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS.
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.
1. Table Of Contents
IMPORTANT GENERAL SAFETY INFORMATION -
2. Pre-Installation Checklist
Mechanical Aquastat Wiring ............................................................ 8
Startup Procedure ........................................................................... 9
Troubleshooting ............................................................................... 9
General Safety Information ........................................................... 10
Replacement Parts ........................................................................ 11
2. Priority System - Under this wiring option the water heater will be
supplied before space heating.
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.
-2-
In limited circumstances, space heating can
be lost in the home in this priority mode. Any
Advertisement
Table of Contents
