Ray Magic® NK

Ray Magic® NK (Naked) is a high performance hydronic radiant panel. It is installed within the ceiling (and walls) and it is covered with 5⁄8″ regular drywall, wood, or other ceiling material, to create unobstructed radiant surfaces.

 

The panel consists of a 1 1⁄2″ thick EPS board and aluminum heat transfer plates with propriety omega shaped channels. Pressed into these channels are two symmetrical 8 mm [≈ 5⁄16″] PE-RT radiant tubing circuits laid out in a serpentine pattern.

 

Each tubing circuit is connected in parallel to 16 mm [≈ 1⁄2″] PE-RT return and supply lines that run along the length of the panel.

 

Panels are connected together using patented slide-in fitting technology that allows for internal PE-RT piping expansion and contraction.

Ray Magic NK

Technical specifications1

Table Header
Model
Ray Magic® NK
 
Part number
RM 2X4: RNKD2438
RM 2X8: RNKD2838
 
Features
Quick and easy to install with panel slide-in patented fitting technology
High heating and cooling performance
90% net radiant surface
Installable on 24" o.c. additional channels or between ceiling joist (width from 1 1⁄2″ to 3″)
Environment-friendly and 100% recyclable
Competitive installed cost compared to other radiant floor panel systems

Size and weight

Ray Magic NK
L
W
H

Nominal size

W2′ [610 mm]
L8′ [2438 mm]
H1 1⁄2" [38 mm]

Weight

Wet weight (with H2O): 10 lbs [4.5 kg]
Dry weight: 8 lbs [3.6 kg]

L
W
H

Nominal size

W2′ [610 mm]
L4′ [1220 mm]
H1 1⁄2" [38 mm]

Weight

Wet weight (with H2O): 3.25 lbs [1.5 kg]
Dry weight: 2.75 lbs [1.2 kg]

Ray Magic NK 2x8

16 mm PE-RT backbone pipe

Aluminum transfer plate

8 mm PE-RT radiant pipe

RM coupling (2) and RM cap (2)

RM 3-way fitting with triple o-ring
US patent #10113678

1 12" EPS board ASTM E84

Ray Magic NK

RM coupling (2) and RM cap (2)

RM 3-way fitting with triple o-ring US patent #10113678

Aluminum transfer plate

8 mm PE-RT radiant pipe

RM 2-way fitting with triple o-ring
|US patent #10113678

1 12" EPS board ASTM E84

Table Header
Finishing2
Comes without finishing, can be covered with wood, drywall, or other approved ceiling materials
 
Packaging
RM NK 2x4 comes in a 5-panel carton box, with 10 RM couplings and 10 RM caps.
Dimension: 51" x 25 1⁄4" x 8 1⁄2"
Weight: 30 lbs.
RM NK 2x8 comes in a 5-panel carton box, with 4 pre-insulated 1/2" PEX straight pipe [8 ft], 10 RM couplings and 10 RM caps.
Dimension: 99" x 25 1⁄4" x 8 1⁄2"
Weight: 58 lbs.
Table Header
Panel connection
Max 10 panels (2x8) per loop connected in series or parallel
Panel to panel:
use (2) RM coupling (included with each panel)
Panel capping:
use (2) RM cap to cap panel (included with each panel)
Panel to headers:
use the Messana 1/2" PEX-A pre-insulated pipe with the RM F1960 adapter3
 
Heat exchanger
Aluminum plates omega-shaped to wrap around the pipe to increase thermal exchange surface
Thickness:
0.016 inch [0.4mm], 27 gauge
Thermal conductivity:
0.18 W/mK when covered with 5/8" gypsum board
Radiant pipe:
8 mm [≈ 5⁄16"] PE-RT 3-layer pipe with EVOH oxygen barrier
Serpentine pattern:
3 3⁄8" o.c. [100 mm], 3" max cut-out allowed
Serpentine lenght:
24 ft per circuit
RM 2x4: one circuits per panels (total 24 ft of piping)
RM 2x8: two circuits per panels (total 48 ft of piping)
 
Radiant Area
Gross radiant area:
RM 2x4: 8 sq.ft. (total panel surface)
RM 2x8: 16 sq.ft. (total panel surface)
Net radiant area:
RM 2x4: 7.4 sq.ft. (total active surface)
RM 2x8:14.4 sq.ft. (total active surface)
Net radiant percentage:
RM 2x4: 90%
RM 2x8: 90%
 
Fluid operating temperature
46 °F to 130 °F
 
Cooling capacity
21 Btu/h/sq.ft @55 °F (Max 31 Btu/h/sq.ft @46 °F) with 76 °F room temperature
(with 5/8" gypsum board)
 
Heat output
24 Btu/h/sq.ft @100 °F (Max 52 Btu/h/sq.ft @130 °F) with 70 °F room temperature
(with 5/8" gypsum board)
 
Nominal flow rate
RM 2x4: 0.05 GPM
RM 2x8: 0.1 GPM
 
Pressure drop
0.8 ft of head [0.35 psi] @0.1 gpm
 
Operating pressure
20 to 40 psi (pressure test at 100 psi)
 
Water content
RM 2x4: 0.115 gal [0.4375 lt], equivalent to approximately 1 lb [0.45 Kg] of water
RM 2X8: 0.23 gal [0.875 lt], equivalent to approximately 2 lb [0.9 Kg] of water
 
Insulation
1 1⁄2" EPS board ASTM E84 (Class A rated)
 
Notes
1. 
Size, weights and technical characteristics may vary without prior notice.
2. 
Use only ceiling material and installation procedures that comply with all local codes.
3. 
1/2" PEX-A cold expansion (F1960) to Ray Magic panel brass adapter (expansion tool required).

Thermal performance1

Cooling capacity
Ray Magic CL cooling graph
Heating capacity
Ray Magic CL heating graph

1.

These thermal performance charts are based on a correlation between internal testing performed using thermal imaging of the panel surface and the test results, according to the nominatives EN 14240 (cooling) and EN 14037 (heating), performed on the previous version of the Ray Magic® panel.

Ray Magic®, comfort from above...

The way nature intended.

What is Radiant Cooling?

Radiant cooling is an energy-efficient cooling technology that, unlike traditional forced-air systems that cool the air, employs chilled radiant surfaces like ceilings or floors to directly absorb the heat radiated by objects and people within a space. Radiant cooling creates a comfortable, even distribution of coolness, without the need for visible and noisy equipment.

What is a Radiant Ceiling?

A radiant ceiling is a type of heating and cooling hydronic terminal that uses the large unobstructed surface area of the ceiling to transfer thermal energy to or from the objects in a room through thermal radiation. Radiant ceilings can be used as a standalone terminal or in conjunction with other heating and cooling systems to provide an energy-efficient and effective indoor climate solution.