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2. Small Range (12 in. x 28 in. (30.5 x 71 cm) maximum)
Two nozzles are available for small range protection: High proximity and low proximity.
The Model 1H nozzle, Part No. 551029, is used for high proximity small range protection. This nozzle is a one (1) flow nozzle. When using high proximity protection, the range cannot be under a backshelf. This nozzle must be located on the front/back centerline of the appliance, 40 in. to 50 in. (102 - 127 cm) above the cooking surface, and aimed directly down within the "Nozzle Location Area" depending on the size of the hazard area. See "Nozzle Placement" chart below. See Figure 3-4 a.
| NOZZLE PLACEMENT CHART | |||||
| Length - L | Width - W | Front/Rear | |||
| in.* | cm. | in.* | cm. | in.* | cm. |
| 12 | 31 | 12 | 31 | 8 | 20 |
| 13 | 33 | 12 | 31 | 7 1/2 | 19 |
| 14 | 36 | 12 | 31 | 7 | 18 |
| 15 | 38 | 12 | 31 | 6 1/2 | 17 |
| 16 | 41 | 12 | 31 | 6 | 15 |
| 17 | 43 | 12 | 31 | 5 1/2 | 14 |
| 18 | 45 | 12 | 31 | 5 | 13 |
| 19 | 48 | 12 | 31 | 4 1/2 | 11 |
| 20 | 51 | 12 | 31 | 4 | 10 |
| 21 | 53 | 12 | 31 | 3 1/2 | 9 |
| 22 | 56 | 12 | 31 | 3 | 8 |
| 23 | 58 | 12 | 31 | 2 1/2 | 6 |
| 24 | 61 | 12 | 31 | 2 | 5 |
| 25 | 64 | 12 | 31 | 1 1/2 | 4 |
| 26 | 66 | 12 | 31 | 1 | 3 |
| 27 | 69 | 12 | 31 | 1/2 | 1 |
| 28 | 71 | 12 | 31 | 0 | 0 |
* Distance from centerline, either toward front or toward back, of hazard area, starting from the reference point.
The Model 1L nozzle, Part No. 551066, is used for low proximity small range protection. This nozzle is a one(1) flow nozzle. The range can be equipped with or without a backshelf. Either type requires the same nozzle requirements. The nozzle must be located 22 in. (56 cm) from either end of the hazard area centered from left to right. It must be 13 in. to 24 in. (33 to 61 cm) above cooking surface, and aimed at a point one half the distance of whatever the height dimension of the nozzle is. When determining nozzle and aim point locations, both measurements are to be taken from the same end of the hazard area. Example: The nozzle is mounted 20 in. (51 cm) above the cooking surface. The aim point from the edge of the hazard would then be 10 in. (25 cm) which is one half the nozzle mounting height dimension. See Figure 3-4b.
Note: Nozzles must be placed at or below the shelf, within the nozzle height limitations.
