CASE OPERATION
Narrow Glass Door Reach-in Beverage Merchandiser
ONRB - 2, 3, 4 & 5-door
Electrical Data
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| High Efficiency |
| Defrost Heaters |
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| Standard Fans | Fans | Heaters |
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| Fans per | 120 Volts | 120 Volts | 120 Volts | 208 Volts | 240 Volts |
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| Model | Case | Amps | Watts | Amps | Watts | Amps | Watts | Amps | Watts | Amps | Watts |
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| ONRB | 2 | 1.00 | 60 | 0.31 | 18.4 | 1.01 | 121 | 4.39 | 914 | 5.06 | 1215 |
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| 3 | 1.50 | 90 | 0.46 | 27.6 | 1.49 | 179 | 4.96 | 1032 | 5.71 | 1370 |
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| 4 | 2.00 | 120 | 0.61 | 36.8 | 1.96 | 235 | 6.51 | 1355 | 7.55 | 1813 |
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| 5 | 2.50 | 150 | 0.77 | 46.0 | 2.40 | 288 | 7.96 | 1655 | 9.17 | 2201 |
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Lighting Data
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| Typical per | Maximum |
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| Light Row | Lighting |
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| 120 Volts | 120 Volts |
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| Model | Amps | Watts | Amps | Watts |
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| ONRB | NA1 | NA | 1.50 | 180 |
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| NA | NA | 1.90 | 228 |
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| NA | NA | 2.40 | 288 |
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| NA | NA | 2.90 | 348 |
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1 Not applicable.
Guidelines & Control Settings
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| Coil | Evaporator | Superheat Set | Discharge Air | Return Air | Discharge Air Velocity5 |
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| Model | BTUH/door3 | Type | (°F) | Point @ Bulb (oF) | (°F) | (°F) | (FPM) |
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| ONRB2 - Deli/Dairy | 8304 | Enh. | 32 | 36 | 38 | 460 |
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| ONRB2 - Beverage | 8004 | Enh. | 34 | 38 | 40 | 460 |
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2All data listed is for an ONRB configured with 20” shelves.
3BTUHs/door listed are for parallel operation. Conventional ratings may be approximated by multiplying listed rating by 1.04.
4High efficiency fans reduce refrigeration load by 96 BTUHs/fan.
5Average discharge air velocity at peak of defrost.
Defrost Controls
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| Electric Defrost | Timed Off Defrost | Hot Gas Defrost | Reverse Air Defrost |
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| Model | Defrosts | Termination | Termination | Termination | Termination |
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| Per Day | Time (min) | (min) | Temp. (°F) | (min) | Temp. (°F) | (min) | Temp. (°F) | (min) | Temp. (°F) |
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| ONRB | 46 | 6 - 8 | 30 | 47 | 30 | 40 | 24 | 47 | - - | - - - |
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6If timed off defrost is utilized. If electric or hot gas defrost is utilized case only requires 1 defrost per day.
7NOTE: - - - not an option on this case model.
Medium Temperature Defrost Schedule
No. Per Day | Hours |
112 midnight
212 am - 12 pm
36 am - 2 pm - 10 pm
412 - 6 am - 12 - 6 pm
All measurements are taken per ARI 1200 - 2002 specifications.
COMPONENT
28
