Use and Care Manual

ahl-647 Revision Date 7.12.23
3
Part 1 - General Safety Information
This water heater is approved for indoor installations only and is not
intended for use as a pool heater. Clearance to combustible materials:
0” top, bottom, sides, and back. Heater must have room for service:
24” front, 3” back, 6” top, and 6” sides are minimum recommended
service clearances. (A combustible door or removable panel is
acceptable front clearance.) This water heater has been approved
for closet installation and installation on combustible ooring. Do
not install directly on carpeting. Install the water heater in a location
where temperature and pressure relief valve discharge or a leak will
not result in damage to the surrounding area.
DO NOT USE THIS WATER HEATER IF ANY PART HAS BEEN
SUBMERGED IN WATER. Immediately call a qualied service
technician. The water heater MUST BE replaced if it has been
submerged. Attempting to operate a water heater that has been
submerged could create numerous harmful conditions, such as
a potential gas leakage causing a re and/or explosion, or the
release of mold, bacteria, or other harmful particulates into the
air. Operating a previously submerged water heater could result in
property damage, severe personal injury, or death.
NOTE: Water heater damage due to ood or submersion is
considered an Act of God, and IS NOT covered under product
warranty.
High heat sources (sources generating heat 100
o
F / 37
o
C or greater,
such as stove pipes, space heaters, etc.) may damage plastic
components of the water heater as well as plastic vent pipe materials.
Such damages ARE NOT covered by warranty. It is recommended to
keep a minimum clearance of 8” from high heat sources. Observe heat
source manufacturer instructions, as well as local, state, provincial,
and national codes, laws, regulations and ordinances when installing
this water heater and related components near high heat sources.
Table of Contents
Part 1 - General Safety Information 3
A. When Servicing the Water Heating System 3
B. Heater Water 3
C. Freeze Protection 3
D. Water Temperature Adjustment 4
Part 2 - Prepare the Water Heater 4
A. What’s in the Box 4
B. Locating the Water Heater 4
C. Water Chemistry Requirements 5
Part 3 - Piping 8
A. Plumbing 8
B. Thermal Expansion 8
C. Condensation 8
D. Insulation Blankets 8
E. Temperature and Pressure Relief Valve 8
F. Scalding 9
G. Filling the Heater 10
H. Applications 10
Part 4 - Wiring 10
Part 5 - Installation Checklist 13
Part 6 - Operation 13
A. Combination Thermostat and High Limit Control (ECO) 13
B. Thermostat Adjustment and ECO Reset 13
C. Heating Element Replacement Procedure 14
Part 7 - Maintenance 14
Part 8 - Troubleshooting 16
Part 9 - Replacement Parts 17
Limited Warranty 18
Customer Installation Record Form 20
Do not use this water heater for anything other than its intended
purpose (as described in this manual). Doing so could result in
property damage and WILL VOID product warranty.
A. When Servicing the Water Heating System
To avoid electric shock, disconnect electrical supply before performing
maintenance.
NOTE: When inquiring about service or troubleshooting, reference the
model and serial numbers from the water heater rating label.
To avoid severe burns, allow water heater and associated equipment
to cool before servicing.
B. Heater Water
Do not use petroleum-based cleaning or sealing compounds in a water
heating system. Gaskets and seals in the system may be damaged. This
can result in substantial property damage.
Do not use “homemade cures” or “patent medicines”. Damage to the
water heater, substantial property damage, and/or serious personal
injury may result.
C. Freeze Protection
NOTE: Consider piping and installation when determining heater
location.
Failure of the water heater due to freeze related damage IS NOT
covered by product warranty.
NEVER use any toxic chemical, including automotive, standard glycol
antifreeze, or ethylene glycol made for hydronic (non-potable)
systems. These chemicals can attack gaskets and seals in water
systems, are poisonous if consumed, and can cause personal injury
or death.
UNCRATING THE WATER HEATER - Any claims for damage or
shortage in shipment must be led immediately against the
transportation company by the consignee.
Installer - Read all instructions in this manual before installing.
Perform steps in the given order.
User - This manual is for use only by a qualied heating installer
/ service technician. Have this water heater serviced / inspected
annually by a qualied service technician.
FAILURE TO ADHERE TO THE GUIDELINES ON THIS PAGE
CAN RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE
PERSONAL INJURY, OR DEATH.
NOTE: If the water heater is exposed to the following, do not operate.
Immediately call a qualied service technician.
1. Fire
2. Damage
3. Water
Failure to follow this information could result in property damage,
severe personal injury, or death.
Be sure to disconnect electrical power before performing service.
Failure to do so could result in electrical shock, property damage,
serious personal injury, or death.