This heater is packed securely.
Before installing the unit, be certain you have the
correct heater for your type of Gas - Propane or
Natural Gas. Identification labels are found on the
shipping box, and on the rating plate which is located on
the right side panel of the cover.
The box includes:
• Pressure relief valve
• Heat shield
Do not lose this manual, there is a charge for a
and return the enclosed product
The AQ125 BO is not approved or designed for:
• Manufactured (mobile) homes, RV's or boats
• Heating or other recirculating/pumping
• Solar/preheat backup or high temperature booster
* This includes domestic hot water circulator pump loop
systems that may previously exist in a home hot water
system. The use of a small electric mini-tank (4-6 gallon
be used for this application;
designed so the pump will circulate the hot water in the
mini-tank only and through the building's hot water
return loop (timed or thermostatic controlled operation
of the pump is commonly done). The AQ125 BO should
be plumbed in line before the mini-tank water heater,
contact BBTNA if further instruction is needed.
rules to follow for safe
1. You should
with local codes
or, in the
of local codes, the National
Fuel Gas Code
plan where you install the heater. Proper
must be followed.
3. The appliance
supply piping system by closing its individual
gas shutoff valve (not supplied
any pressure testing at pressures
in excess of 1/2Psig
and its gas connection
must be leak
tested before placing the appliance
Do not locate
the heater over any material which might burn.
is critical for the optimum
of this heater. Gas piping must be sized to
provide the required
pressure at the maximum output
of the heater, while all the other gas appliances
Check with your local gas supplier,
see the section on connecting
the gas supply.
6. Should overheating
occur or the gas supply fail to
shut off, turn off the gas supply at the manual gas
shut off valve, on the gas line. Note:
shutoff valve is not supplied
with the heater.
7. Do not use this appliance
if any part has been
and to replace
any part of the control
system and any gas control
which has been underwater.
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