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READ CAREFULLY THE PRODUCT INSTALLATION,
OPERATING AND MAINTENANCE INSTRUCTIONS.
FAILURE TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE
MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND/OR PROPERTY
DAMAGE, AND WILL VOID THE PRODUCT WARRANTY. THIS PRODUCT
MUST BE INSTALLED BY A QUALIFIED PROFESSIONAL. FOLLOW ALL
APPLICABLE LOCAL AND STATE CODES AND REGULATIONS, IN THE
ABSENCE OF SUCH CODES, FOLLOW THE CURRENT EDITIONS OF THE
NATIONAL PLUMBING CODE AND NATIONAL ELECTRIC CODE, AS
APPLICABLE.
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED TO ALERT YOU
TO POTENTIAL PERSONAL INJURY AND OTHER HAZARDS. OBEY
ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE
RISK OF POSSIBLE INJURY AS WELL AS PROPERTY DAMAGE.
This product, like most products under pressure, may over time corrode,
weaken and burst or explode, causing serious or fatal personal injury, leaking
or flooding and/or property damage. To minimize risk, a licensed professional
must install and periodically inspect and service the Product. A drip pan
connected to an adequate drain must be installed if leaking or flooding could
cause property damage. Do not locate in an area where leaking could cause
property damage.
EXPLOSION OR RUPTURE HAZARD. A relief valve must be installed to
prevent pressure in excess of local code requirement or maximum working
pressure designated in the Product Manual, whichever is less. Do not expose
Product to freezing temperatures or temperatures in excess of 200 degrees F.
Do not adjust the pre-charge or re-charge this Product except for any
adjustments at the time of the initial installation, especially if Product is
corroded,damaged or with diminished integrity. Adjustments to pre-charge
must be done at ambient temperature only. Failure to properly size the Product
or follow these instructions may result in excessive strain on the system and
may lead to Product failure,serious or fatal personal injury, leakage, and/or
property damage.
POTABLE WATER WARNING. Radiant Extrol must not
be used in potable water systems of any kind. The
maximum operating pressures in these systems exceeds the maximum safe
working pressure of the Product. Use Therm-X-Trol
®
for potable water
applications.
WARNING: This product contains a chemical known by the State of
California to cause cancer.
WARNING: This product contains a chemical known by the State of
California to cause birth defects or other reproductive harm.
Pre-Installation
1. Visually inspect RADIANT EXTROL for any damage.
2. Adjust pre-charge to equal system fill pressure.
3. Replace and tighten plastic cap on air fitting.
Installation
1. Drain the boiler system or isolate the area where the RADIANT EXTROL
will be installed.
2. Install the RADIANT EXTROL on the supply side of the boiler, on the
suction-side of the heating circulator(s) (see Figure 1).
3. Once the RADIANT EXTROL is installed, re-pressurize the system and
check for leaks. Repair as necessary.
4. Restart the boiler system and check for relief valve discharge. If the relief
valve drips, the tank may be improperly charged or undersized.
5. The RADIANT EXTROL is now operational and will absorb expanded
water during boiler operation.
PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY
Boiler
Boiler
Return
Boiler
Supply
AMTROL Air Purger
and Float Vent
Zone
Circulator(s)
In-Line Models
RX-15 & RX-30
EXTROL
Boiler
Boiler
Return
Boiler
Supply
AMTROL Air Purger
and Float Vent
Zone
Circulator(s)
Stand Models
RX-60 and larger
EXTROL
West Warwick, Rhode Island 02893
INSTALLATION & OPERATION
INSTRUCTIONS
RADIANT EXTROL
TM
Radiant Heating System Expansion Tanks
Figure 1.
MARK OF THE ORIGINATOR
Maintenance
1. A heating system professional should check the complete heating
system, including the RADIANT EXTROL, yearly and more frequently as
the system ages.
Operation
1. The RADIANT EXTROL is installed on the supply-side of the boiler
system. Its sealed-in air pre-charge prevents water from entering the
tank until the system pressure begins to rise.
2. As the water temperature rises, water enters the RADIANT EXTROL.
3. As the system cools, the diaphragm is forced downward. Water is
expelled from the RADIANT EXTROL, back into the heating system.
NOTES
1. Although the RADIANT EXTROL does not have to be installed at the base of an
air purger, this installation is recommended to reduce air in the system and
provide a compact installation. Some method of air elimination is required to
ensure an oxygen-free system.
2. The RADIANT EXTROL must not be placed overhead in the floor joist space.
When replacing a plain-steel tank, the RADIANT EXTROL should be relocated
per Figure 1.
3. Do not place the RADIANT EXTROL on a dead-end pipe. Air can collect in the
RADIANT EXTROL, causing internal corrosion and possible leakage.
* Models RX-15 through RX-60 come with a 5 year warranty. All other
RADIANT EXTROL models come with a 1 year warranty. See reverse
side for warranty information.
Part #9015-367 Rev. B
Revised 10/05