Amtrol EXTROL EX Series Installation instructions

USE ONLY IN RESIDENTIAL CLOSED
HYDRONIC SYSTEMS. Do not install on domestic
water systems, or in open heating systems. Corrosion and tank failure
may result. Use a Therm-X-Trol®or Therm-X-Span®for domestic water
systems. Use a Radiant EXTROL®for radiant heating systems where air
elimination equipment or barrier tubing is not used.
READ CAREFULLY THE PRODUCT
INSTALLATION, OPERATING AND
MAINTENANCE MANUAL. 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 LICENSED 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 Product, like most Products under pressure,
may over time corrode, weaken and burst or
explode, causing serious or fatal 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 to the area adjacent to the appliance or to lower floors
of the structure.
RUPTURE OR EXPLOSION HAZARD. Do not
expose product to freezing temperatures or
temperatures in excess of 240°F. Do not adjust the pre-charge or
re-charge this Product except during installation or regular inspection.
Replace the Product and do not adjust the pre-charge if 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.
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.
At least once every 3 years or if discharge is present, a licensed
professional should inspect the pressure relief valve and replace if
corrosion is evident or the valve does not function. FAILURE TO
INSPECT THIS VALVE AS DIRECTED COULD RESULT IN UNSAFE
PRESSURE BUILD-UP WHICH CAN RESULT IN PRODUCT FAILURE,
SERIOUS INJURY OR DEATH AND/OR SEVERE PROPERTY
DAMAGE AND VOID THE PRODUCT WARRANTY.
Chlorine & Aggressive Water: The water quality
can significantly influence the life of this Product.
You should test for corrosive elements, acidity, total solids and other
relevant contaminants, including chlorine and treat your water
appropriately to insure satisfactory performance and prevent
premature failure.
This product can expose you to chemicals including
lead, which is known to the State of California to
cause cancer and birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov.
EXTROL®
EXPANSION TANKS FOR HYDRONIC HEATING & CHILLED WATER SYSTEMS
INSTALLATION & OPERATION INSTRUCTIONS
NOTE: Inspect for shipping damage. Notify freight carrier or store where purchased immediately if damage is present. To avoid risk of personal injury
and property damage, if the product appears to be malfunctioning or shows signs of corrosion, call a qualified professional immediately. Current copies
of the product manual can be viewed at www.amtrol.com. Use proper safety equipment when installing.
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 PERSONAL
INJURY AS WELL AS PROPERTY DAMAGE.
Models EX-15 through EX-90
Models SX-30V through SX-160V

Pre-Installation
1. Visually inspect for any damage. Ensure expansion tank is sized
properly for the application (Figure 1).
2. With tank empty of water, remove plastic cap from air stem (Figure 2).
3. Check precharge pressure and adjust if necessary, charging with air
to match boiler fill valve setting.
4. Replace cap and tighten snugly, ensuring the cap is flush against the
tank surface.
Installation
1. Drain the boiler system or isolate the area where the EXTROL will
be installed.
2. Install the EXTROL on the supply side of the boiler, on the suction-side
of the heating circulator(s) (Figure 3).
3. 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.
FAILURE TO PROPERLY SEAL CAP WILL
RESULT IN LOSS OF PRECHARGE CAUSING
PRODUCT TO FAIL.
Mount tank vertically in downward position only.
Ensure the piping can support the entire weight of
the tank when full of water.
Models SX-30V through SX-160V are floor
standing and may not be hung from the piping.
Do not install the EXTROL on a dead-end pipe or
wherever air can collect. This can cause corrosion
and possible leakage.
Figure 1.
System
Supply
Flow-Check
Valve Circulator Air Purger
Air Vent
EXTROL Fill Valve Assembly
Boiler
System
Return
Inspection
Cap
Relief
Valve
Drain Valve
System
Supply
Flow-Check
Valve Circulator
Fill Valve Assembly
Boiler
System
Return
Relief
Valve
EXTROL
Air
Separator
Air Vent
Drain Valve
In-Line Models: EX-15 through EX-90
Stand Models: SX-30V through SX-160V
PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY FOR
IMPORTANT GENERAL SAFETY INFORMATION AND ADDITIONAL SPECIFIC SAFETY ALERTS.
VISIT www.amtrol.com TO VIEW HELPFUL VIDEOS.
Boiler
Net Output
in 1000’S
of BTU/Hr.
Type of Radiation
Finned Tube
Baseboard or
Radiant Panel
Convectors
or Unit
Heaters
Radiators
Cast Iron
Baseboard
Cast Iron
25 EX-15 EX-15 EX-15 EX-15
50 EX-15 EX-15 EX-30 EX-30
75 EX-30 EX-30 EX-30 EX-60
100 EX-30 EX-30 EX-60 EX-60
125 EX-30 EX-60 EX-60 EX-90
150 EX-30 EX-60 EX-90 EX-90
175 EX-60 EX-60 EX-90 EX-90
200 EX-60 EX-60 EX-90 EX-90
250 EX-60 EX-90 EX-90 EX-90
300 EX-90 SX-30V SX-30V SX-40V
350 SX-30V SX-30V SX-40V SX-60V
400 SX-30V SX-40V SX-40V SX-60V
450 SX-40V SX-40V SX-60V SX-90V
500 SX-40V SX-40V SX-60V SX-90V
550 SX-40V SX-60V SX-60V SX-90V
600 SX-40V SX-60V SX-90V SX-90V
650 SX-60V SX-60V SX-90V SX-90V
700 SX-60V SX-60V SX-90V SX-90V
750 SX-60V SX-60V SX-90V SX-110V
800 SX-60V SX-90V SX-90V SX-110V
850 SX-60V SX-90V SX-90V SX-110V
900 SX-60V SX-90V SX-110V SX-110V
950 SX-90V SX-90V SX-110V SX-110V
1,000 SX-90V SX-90V SX-110V SX-110V
1,100 SX-90V SX-90V SX-110V SX-130V
1,200 SX-90V SX-90V SX-110V SX-130V
1,300 SX-90V SX-110V SX-130V SX-160V
1,400 SX-110V SX-130V SX-160V SX-160V
1,500 SX-110V SX-130V SX-160V (2)SX-110V
Sizing based on: 12 psig Fill; 30 psig Relief Valve; 200°F Average Temperature.
Figure 2.
Figure 3.
Maintenance
A professional plumber should check the complete system, including
the expansion tank, yearly and more frequently as the system ages.
Checking the precharge allows a small quantity of air to escape and can
result in an insufficient air charge. Always check the precharge while
the tank is isolated and empty of water, and be sure to maintain the
proper precharge whenever the tank is inspected. Monitor the tip of the
inspection cap for discoloration (Figure 4) in addition to regular product
inspection. Contact the installer or a plumbing professional if inspection
cap is discolored; tank replacement required. Do not rely on cap as sole
indication of tank condition.
Warranty
EX Models: Five (7) Year Limited Warranty
SX Models: One (1) Year Limited Warranty
Visit www.amtrol.com for complete warranty details.
Figure 4.
Clear / White
Normal
Operation
Discolored
Replace
Tank
Remove cap and
charge to system
fill pressure.
Replace cap and
tighten until flush
with tank.
Precharge Adjustment: In-Line Models Shown
InSight™Service Indicator Cap (Inline models only)
© 2019 Worthington Industries Inc. Part #: 9015-941 (01/19)
One or more features of this product are covered by U.S. patents, visit www.amtrol.com/patents for more information.
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