PENSOTTI V20 Series Setup guide

V20 Panel Radiators
1. Pensotti radiators are manufactured using cold rolled steel and can only be installed in forced
circulation, closed loop, hydronic heating systems.
2. Series loop piping is not recommended. Homerun, 2 pipe reverse return, 2 pipe direct return and
1 pipe monoflo piping systems are preferred.
3. Pensotti H22 and V20 radiators are supplied with hanging brackets, manual air vent and one
plug.
4. Do not over pressurize the system. Maximum operating pressure is 56 psi.
5. Radiators can be installed in any closed loop hydronic system with operating temperatures up to
230 degrees Fahrenheit.
6. Important: Do not install in gravity hot water or steam systems.
7. Each radiator must be vented individually.
8. Air removal from each radiator will need to be completed upon the initial fill of the system and
periodically during the heating season to assure proper operation and comfort.
9. Air removal from the system should be done while it is in a ‘static’ state (circulators not
operating).
10. Proper air elimination will ensure adequate water flow through the radiators.
11. Radiators expand when heated. The expansion rate is .015” per linear foot when heated to 210
degrees Fahrenheit. Drilled holes and piping connected to the radiator must be able to
compensate for this expansion.
12. Swing joints in the piping or flexible piping materials, are two easy ways of dealing with radiator
expansion and the noises it can create.
13. Always use all the hanging brackets supplied with each radiator.
14. Hanging brackets must be secured to wall studs or proper wall backing material with
appropriately sized and strength fasteners.
15. Surface temperature of the radiator will be equal to the temperature of the water flowing
through it. When installed on high temperature systems use proper precautions with infants and
toddlers.
16. Antifreeze use is permitted. Always refer to the boiler manufacturer’s recommendations
regarding type and dilution percentage.
17. Heating system water treatment is strongly suggested.
18. Do not install Pensotti radiators in harsh or caustic environments. 1
Specification, Operation and Maintenance Information
General
Vertical

Pensotti Vertical V20 Panel Radiators
Specification, Operation and Maintenance
1. Routinely check for water leaks.
2. An annual test of heating system water quality is required. Specifically a pH test to determine the
water’s corrosive potential.
3. Systems with antifreeze must be tested annually for pH, flow point and freeze point. Follow the
antifreeze and boiler manufacturers recommendation.
4. Heating system water treatment must be tested annually. Follow the chemical manufacturers
recommendations.
5. Keep the external surfaces of the radiator clean using typical household cleaners and a soft rag.
6. The use of abrasive cleaners will damage the radiator’s finish and void the warranty.
7. Vacuum dust and dirt from the radiator surfaces on a regular basis.
8. Touch up and nicks and scratches on the painted surfaces to minimize any surface rust from
occurring.
2
Maintenance

Pensotti V20 Flat Panel Radiators
Installation Position
Integral Bottom Manifold Baffle
Bottom Manifold Baffle
Return Supply
Plug
Air Vent
Radiator Bottom
Radiator Top
•Radiator top, designated by the manual air vent and plug, must always remain at the top
•Bottom manifold, supply and return, includes an integral baffle to encourage water flow through the
entire radiator
•Supply and return locations can be interchanged at the bottom manifold
•Always locate the manual air vent on the same side of the radiator as the return pipe
•Radiator mounting brackets must be secured to wall studs or proper wall backing material
Water Flow
3

Pensotti V20 Flat Panel Radiators
Installation Position
Integral Bottom Manifold Baffle
Supply
Plug
Radiator Bottom
Radiator Top
•Radiator top, designated by the manual air vent and plug, must always remain at the top
•Bottom manifold, supply and return, includes an integral baffle to encourage water flow through the
entire radiator
•Supply and return locations can be interchanged at the bottom manifold
•Always locate the manual air vent on the same side of the radiator as the return pipe
•Radiator mounting brackets must be secured to wall studs or proper wall backing material
Water Flow
Return Supply
Plug Air Vent
Radiator Top
Radiator Bottom
Air Vent
Return
Water Flow
4

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
4.0”
2 1/4”
3 1/2”
Height
2 7/16”
B
B
Width
Height
15/16”
SupplyReturn
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
Pensotti V20 Flat Panel Radiators
Multi-Positional PTKA46202B Adapters
12mm Allen Wrench Required
1 ¾”
1 ¾”
5

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
B Detail
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
A Detail
4.0”
2 1/4”
3 1/2”
47 1/4”
2 7/16”
B
B
Center of Hole
Pensotti V20-48X12
Dimensions as Viewed From the Back of the Radiator
11 1/2”
47 1/4”
6”
6”
3” 3”
3”
3”
35 1/4”
5 1/2”
15/16”
Supply
Return
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
A
6

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
B Detail
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
A Detail
4.0”
2 1/4”
3 1/2”
47 1/4”
2 7/16”
B
B
Center of Hole
Pensotti V20-48X17
Dimensions as Viewed From the Back of the Radiator
17 3/8”
47 1/4”
6”
6”
3” 3”
3”
3”
35 1/4”
11”
15/16”
Supply
Return
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
A
7

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
B Detail
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
A Detail
4.0”
2 1/4”
3 1/2”
47 1/4”
2 7/16”
B
B
Center of Hole
Pensotti V20-48X24
Dimensions as Viewed From the Back of the Radiator
23 1/8”
47 1/4”
6”
6”
3 1/2” 3 1/2”
3 1/2”
3 1/2”
35 1/4”
16”
15/16”
Supply
Return
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
A
8

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
B Detail
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
A Detail
4.0”
2 1/4”
3 1/2”
63”
2 7/16”
B
B
Center of Hole
Pensotti V20-63X12
Dimensions as Viewed From the Back of the Radiator
11 1/2”
63”
6”
6”
3” 3”
3”
3”
51”
5 1/2”
15/16”
Supply
Return
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
A
9

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
B Detail
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
A Detail
4.0”
2 1/4”
3 1/2”
63”
2 7/16”
B
B
Center of Hole
Pensotti V20-63X17
Dimensions as Viewed From the Back of the Radiator
17 1/4”
63”
6”
6”
3” 3”
3”
3”
51”
11 1/4”
15/16”
Supply
Return
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
A
10

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
B Detail
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
A Detail
4.0”
2 1/4”
3 1/2”
63”
2 7/16”
B
B
Center of Hole
Pensotti V20-63X24
Dimensions as Viewed From the Back of the Radiator
23 1/8”
63”
6”
6”
3 1/2” 3 1/2”
3 1/2”
3 1/2”
51”
16 1/8”
15/16”
Supply
Return
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
A
11

Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
B Detail
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
A Detail
4.0”
2 1/4”
3 1/2”
63”
2 7/16”
B
B
Center of Hole
Pensotti V20-63X29
Dimensions as Viewed From the Back of the Radiator
29”
63”
6”
6”
6 1/2” 6 1/2”
6 1/2”
6 1/2”
51”
16 ”
15/16”
Supply
Return
Air Vent Plug
Important:
Pensotti V20 Flat Panel Radiators have a preinstalled
manual air vent and plug. Their location indicates the ‘top
end’ of the radiator.
In order for the radiator to operate properly, it must be
installed with the ‘top end’ at the top.
In other words, the radiator cannot be turned upside down.
Supply and return connections may be reversed at the
bottom.
Always locate (or relocate) the manual air vent above the
return connection.
4” Floor
A
12