Granby PENSOTTI H22 Setup guide

H22 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
Horizontal

Pensotti Horizontal H22 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 H22 Flat Panel Radiators
Installation Position
•Supply and return manifolds are metered with two orifices at each end of each flat tube
•Supply and return locations can be interchanged at the bottom tapping
•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
Supply
Supply Return
Return
Plug
Plug Air Vent
Air Vent
Water Flow
3

Pensotti H22 Flat Panel Radiators
Height
Width
Supply or Return ½” BSP
15/16”
15/16”
4.0”
3 7/8”
5 1/8”
Height
3 1/4”
Center of Hole to Outer Edge of Radiator
B
B
Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
Center of Hole
1 3/4” Center of Hole
Multi-Positional PTKA46202B Adapters
12mm Allen Wrench Required
4

Pensotti H22-12X16
Dimensions as Viewed From the Back of the Radiator
11 1/2”
15 3/4”
3 1/2”
3 1/2”
3 1/2”
3 1/2”
3 3/4” 3 3/4”
3 3/4” 3 3/4”
4”
8 3/4”
Bracket Detail
4.0”
2 3/4”
1/2”
Useable Length
Supply or Return ½” BSP
15/16”
15/16”
4.0”
3 7/8”
5 1/8”
11 1/2”
3 1/4”
Center of Hole to Outer Edge of Radiator
A Detail
A
B
B Detail
B
1 1/8”
2 3/8”
1/2”
1 3/8”
1/2”
Insert Nylon Bushings Here
Radiator Mounting Brackets Must Be Secured To Wall Studs Or Proper Wall Backing Material
Center of Hole 5