Ritter - Model OEM 21 -Evacuated Tube Collector

Scope of Delivery: Fully pre-assembled unit comprising of:

• Evacuated tubes based on the thermos flask principle
• Manifold with direct flow heat conduction unit and dry tube connection

Collectors are packed in individual boxes. In addition, there is a sun protection sheet over the evacuated tubes.

Installation Types:

• On-roof Installation 
• Flat roof Installation
• Horizontal Installation
• Ground Installation

• Internal piping   copper
• Color (aluminum frame profile)   aluminum grey
• Surface coating (aluminum frame profile)   anodized
• No. of Evacuated Tubes   21
• η (based on gross area), according to SRCC % 42.4
• a1 (based on gross area), according to SRCC BTU/hr.ft².°F 0.20102
• a2 (based on gross area), according to SRCC BTU/hr.ft².°F² 0.00061
• Thermal Performance Rating (Category C; Clear Day) BTU per panel per day 23,500
• Grid dimensions (length x width x depth) in 64.5 x 57 x 4
• Gross surface area ft² 25.45
• Aperture area ft² 15.3
• Collector contents gal 0.7
• Weight lbs 118
• Max. working overpressure psi 150
• Max. stagnation temperature °F 428
• Connection diameter, compression ring mm 15
• Sensor sleeve mm 6
• Glass tube (Ø ext./Ø int./wall thckn./tube lgth.) in 1 7/8 / 1 1/2 / 1/16 / 59
• Collector material   AI / Cu / glass / silicone / PBT / EPDM / TE
• Glass tube material   borosilicate glass 3.3
• Selective absorber coating material   aluminum nitride
• Color (plastic parts)   black
• Thermal shock test ITW test 07COL517
• Hailstone test according to DIN EN 12975-2 TÜV test 435/142448
• EC type examination   Z-IS-DDK-MUC-07-08-100029919-003
• DIN CERTCO registration number   011-7S114R
• SRCC OG-100 Certification number   2008011A
• High Velocity Wind Certification   No
• Other tests and approvals   EN 12975, RAL ZU 73, Solar Keymark, ISO 9001