Amtrol SX-30V, EX-90, EX-15, SX160V User Manual

EXTROL

®

HYDRONIC EXPANSION TANKS FOR NON-POTABLE WATER

INSTALLATION & OPERATION INSTRUCTIONS

Models EX-15 through EX-90

Models SX-30V through SX-160V

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.

USE ONLY IN RESIDENTIAL CLOSED HYDRONIC

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.

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

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.

CALIFORNIA PROPOSITION 65 WARNING! This product contains a
chemical known by the State of California to cause cancer and to cause
birth defects or other reproductive harm. (California Installer/Contractor

- California law requires that this notice be given to consumer/end user
of this product.) For more information: www.amtrol.com/prop65.html

NATIONAL ELECTRIC CODE, AS APPLICABLE.

SYSTEMS.

READ CAREFULLY THE PRODUCT INSTALLATION,
OPERATING AND MAINTENANCE MANUAL.

This Product, like most Products under pressure,
may over time corrode, weaken and burst or

Do not install on domestic water

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.

working pressure designated in the Product Manual, whichever is less.
At least once every 3 years or if discharge is present, a licensed
contractor 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.

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.

RUPTURE OR EXPLOSION HAZARD. Do not
expose product to freezing temperatures or

A relief valve must be installed to prevent pressure
in excess of local code requirement or maximum

Chlorine & Aggressive Water: The water quality
can significantly influence the life of this Product.

PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY

IMPORTANT GENERAL SAFETY INFORMATION -

ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS.

Pre-Installation

1 Visually inspect for any damage. Ensure expansion tank is sized

properly for application (Figure 1).

2. Remove plastic cap from air valve.

3. With tank empty of water, adjust air precharge to match system fill
pressure.

4. Replace and tighten plastic cap on air valve.

FAILURE TO PROPERLY SEAL VALVE 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.

Installation

1. Drain the boiler system or isolate the area where the EXTROL will
be installed.

Figure 1.

Boiler

Net Output

in 1000’S

of BTU/Hr.

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 SX-30V SX-30V
200 EX-60 EX-60 SX-30V SX-30V
250 EX-60 EX-90 SX-30V SX-40V
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

Sizing based on: 12 psig Fill; 30 psig Relief Valve; 200°F Average Temperature.

Boiler

Net Output in

1000’s of BTU

200 SX- 30V SX-30V SX-30V SX-30V
250 SX- 30V SX-30V SX-30V SX-40V
300 SX- 30V SX-30V SX-40V SX-40V
350 SX-30V SX-30V SX-40V SX-60V
400 SX-30V SX-40V SX-60V SX-60V
450 SX-40V SX-40V SX-90V 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: Average Boiler Water Volume; Average Water Volume;
Fill Pressure 12 psig; Relief Pressure 30 psig

Finned Tube

Baseboard or

Radiant Panel

Finned Tube

Baseboard or Radiant

Panels with Series

Loop System

Type of Radiation and Piping System

Type of Radiation

Convectors

or Unit

Heaters

Convectors or

Unit Heaters

with One Pipe

System

Radiators

Cast Iron

Radiators

or

One Pipe

System

Baseboard

Cast Iron

Cast Iron
Radiators

with Series

Loop System

2. Install the EXTROL on the supply side of the boiler, on the suction-side
of the heating circulator(s) (Figure 2).

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.

5. The EXTROL is now operational and will absorb expanded water
during boiler operation.

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.

Warranty

EX Models: Five (5) Year Limited Warranty

SX Models: One (1) Year Limited Warranty

Visit www.amtrol.com for complete warranty details.

Figure 2.

In-Line Models:
EX-15 through EX-90

System

Supply

Flow-Check

Valve

Purger

Circulator

Stand Models:
SX-30V through SX-160V

System
Supply

Flow-Check

Circulator

Valve

Air

Air Vent

Extrol

Expansion

Tank

Air Vent

Air

Separator

Extrol

Expansion

Tank

Pressure­Reducing

Valve

Shut-Off

Valve

Pressure­Reducing

Shut-Off

Valve

Boiler

Valve

System

Purge

Boiler

Backflow
Preventer

System

Purge

Backflow
Preventer

Relief
Valve

Shut-Off

Valve

Shut-Off

Valve

Relief
Valve

Water

Supply

Water

Supply

System

Return

System

Return

1400 Division Road, West Warwick, RI USA 02893

T: 800.426.8765 F: 800.293.1519

Mark of the

Originator

www.amtrol.com

© 2015 AMTROL Inc. Part #: 9015-183 (06/15)