Flexcon Flex 2 Pro PH Series User manual

  
    
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



         
      


  




       






Note:    

 

Qualified Professional 





  



,
/

   
       





            



       ,  / 

     
 will       

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 
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
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
                 
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 

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

 



 



   




 





         
   8818

This tank is intended for use on potable water
systems only and any other use may be dangerous and void the
warranty. This product's performance and lifespan can be significantly
and adversely impacted by aggressive water conditions. A water test
should be conducted at regular, periodic intervals specifically looking
for corrosive water, acids, and other relevant water contaminants
which, if present, must be treated immediately and apporopriately. The
system piping must be properly grounded to the earth and a di-electric
union is recommended in the installation. Failure to follow these
instructions may result in serious injury, death and/or property damage.
THIS IS THE SAFETY ALERT SYMBOL. IT IS USED
TO ALERT YOU TO POTENTIAL PERSONAL
INJURY HAZARDS. OBEY ALL SAFETY
MESSAGES THAT FOLLOW THIS SYMBOL TO
AVOID POSSIBLE INJURY OR DEATH.
WARNING
INDICATES A POTENTIALLY HAZARDOUS
SITUATION WHICH, IF NOT AVOIDED, COULD
RESULT IN SERIOUS INJURY, DEATH, AND/OR
SIGNIFICANT PROPERTY DAMAGE.

ma i n t e n a n c e
sP e c s / d i m e n s i o n s
This expansion tank and the entire system must be checked annually by a qualified professional.
Visually examine the tank and its connection to the system piping looking for any signs of water leakage or corrosion on the
exterior of the tank or the connection.
If this expansion tank shows any visible signs of leaking, corrosion or rusting, the tank must be replaced
immediately to avoid personal injury or property damage. Do not adjust the tank air pressure if there
are any signs of corrosion on the tank. Failure to follow these instructions may result in serious injury or death and or
property damage.
WarninG
Sizing based on water heater recovery from 40F, water supply pressure of
60 SIG, and relief valve set at 150 SIG. Adjust tank precharge to equal
incoming water pressure.
Water Heater Maximum Water Temperature
Size/Volume 130o F 140o F 160o F 180o F
30 GALLONS
40 GALLONS
50 GALLONS
60 GALLONS
80 GALLONS
100 GALLONS
120 GALLONS
150 GALLONS
175 GALLONS
H 5
H 5
H 5
H 5
H 5
H 12
H 12
H 12
H 12
H 5
H 5
H 5
H 5
H 12
H 12
H 12
H 12
H 25
H 5
H 5
H 5
H 5
H 12
H 12
H 12
H 25
H 25
H 5
H 5
H 12
H 12
H 12
H 25
H 25
H 25
H 25
Q U I C K S I Z I N G C H A R T
A
B
C
Maximum working pressure 150 psig. Maximum working temperature, internal & external 200o F. Tank pre-charge 40 psig.
NOTE: h Series tanks are certified to NSF Standard 61 Domestic Hot, but are suitable for temperatures up to 200o F.
Model Total Tank A B C Total Weight
Volume Height Diameter Connection
gal liters in cm in cm lbs kilos
H 5
H 12
H 25
2.1
4.8
9.0
8
18
32
11.6
14.5
18.9
30.0
37.0
48.1
20.0
28.0
31.8
3/4” MN T
3/4” MN T
3/4” MN T
DIMENSIONS & CA ACITIES
5.0
10.0
15.40
2.3
4.6
7.0
8.00
11.00
12.50
MATERIALS OF CONSTRUCTION
Tank: 16 gauge cold rolled steel
Finish: Appliance quality paint for indoor or outdoor installation
Water chamber: 100% butyl rubber, lined with polypropylene
Connection: Stainless Steel
Testing: High pressure, seam weld, helium, final
precharge check
Air valve: Brass valve with o-ring seal
Warranty: One year
.
.
.
.
.
.
.
REV. 8.18
location
Select a location where a water leak will not cause prop-
erty damage and provides adequate means for water
drainage. This expansion tank and the associated piping
will in time leak. The manufacturer is not responsible for
any water damage that may occur in association with the
expansion tank installation.
Disconnect or shut off the electrical
power source to the water heater.
Shut off the water supply to the system and remove all
water pressure from the system. Failure to follow these
instructions may result in serious injury or death and or
property damage.
The tank is designed to be supported by the system
piping. ake sure that there is adequate means of
supporting the system piping and if necessary add
strapping, brackets or pipe hangars.
DO NOT INSTALL THIS EXPANSION TANK IN THE
HORIZONTAL POSITION.
Install the expansion tank in the incoming water line to the
water heater between the water heater and the backflow
preventer or check valve (see Fig. 1). Adequate thread
sealant (pipe dope) must be added to ensure a leak free
installation. DO NOT USE ONLY TEFLON TAPE.
Before turning on the water supply to the system, open a
hot water faucet to prevent any damage to the water
heater and remove air from the system piping. Turn on the
water supply and inspect the installation for water leaks
paying close attention to the connection between the ex-
pansion tank and the piping.
Follow the water heater manufacturer’s instructions for
proper start-up of the heater and the system.
in s t a l l a t i o n
be f o r e in s t a l l a t i o n
Product insPection
Visually inspect the product for any signs of damage that may have occurred during transportation. If the tank is dented,
bent or scratched, return the product to the original purchase point for replacement.
Pre-charGe adjustment
This expansion tank is shipped from the factory with a pre-charge of 40 psi. Any adjustments to the factory pre-charge
must be done prior to initial tank installation and with 0 psi pressure on the system. DO NOT ADJUST THE PRE-CHARGE
OF THE EXPANSION TANK WITH THE SYSTE UNDER PRESSURE!
The expansion tank should be pre-charged to the incoming system water pressure but must not exceed 80 psi. IF WATER
PRESSURE IS ABOVE 80 PSI, A PRESSURE REDUCING VALVE MUST BE USED.failure to properly adjust the pre-
charge will shorten the life expectancy of the product.
to adjust tank PrecharGe
Remove the protective cap from the air valve.
Check the tank pre-charge pressure using a standard tire pressure gauge.
If required add air to the tank using a manual bicycle tire pump until the proper pre-charge pressure is reached.
Replace the protective cap on the air valve.
WarninG
fig. #1