Track Application L
L = Low Headroom Track Application
A technical drawing illustrates the L-track application for low headroom sectional garage doors. It depicts the track mechanism, operator mounting, and essential dimensions. Key measurements include W (width), RM (grid height), LDH (clear passage height), DE (ceiling height), LZ (clear frame dimension), ET (distance back), GIM (interior garage dimension), and V1 (rear operator boom suspension). Clearance values such as 155mm, 125mm, 90mm, and 105mm are indicated, along with specific relationships like GIM ≥ LZ + 180.
Diagram Key Dimensions:
- LDH: Clear passage height
- RM: Grid height
- LZ: Clear frame dimension
- DE: Ceiling height
- ET: Distance back
- GIM: Interior garage dimension
- V1: Rear operator boom suspension
- W: Total distance back including operator head
Specific Clearance Requirements:
- For doors under thermal loads, position the operator 40 mm higher if required (RM + 115 + 40).
- Clearance required for fitting doors with leading photocell (see page 55).
Track Dimensions and Operator Compatibility
The following tables provide specifications for manual operation and with operator (LPU 42) based on different RM (grid height) values. DE represents ceiling height, and LDH represents clear passage height.
Manual Operation and With Operator (LPU 42)
| RM | Manual operation | With operator | ||||
|---|---|---|---|---|---|---|
| Min. DE | LDH | Min. DE * | LDH | Up to LZ = 3000 mm (LDH) | From LZ = 3010 mm (LDH) | |
| 1900 | 2000 | 1800 | 2015 | 1870 | 1820 | |
| 2000 | 2100 | 1900 | 2115 | 1970 | 1920 | |
| 2080 | 2180 | 1980 | 2195 | 2050 | 2000 | |
| 2125 | 2225 | 2025 | 2240 | 2095 | 2045 | |
| 2205 | 2305 | 2105 | 2320 | 2175 | 2125 | |
| 2250 | 2350 | 2150 | 2365 | 2220 | 2170 | |
| 2375 | 2475 | 2275 | 2490 | 2345 | 2295 | |
| 2500 | 2600 | 2400 | 2615 | 2470 | 2420 | |
| 2600 | 2700 | 2500 | 2715 | 2570 | 2520 | |
| 2750 | 2850 | 2650 | 2865 | 2720 | 2670 | |
| 2850 | 2950 | 2750 | 2965 | 2820 | 2770 | |
| 3000 | 3100 | 2900 | 3115 | 2970 | 2920 | |
Formulae for Maximum DE:
- Max. DE standard suspension = RM + 410
- Max. DE with track suspension set = RM + 695
- Max. DE with track suspension set I = 1456 = RM + 1423
Clearance Dimensions:
- LZ (Clear frame dimension): Minimum 90 mm (105 mm **).
- GIM (Interior garage dimension): GIM ≥ LZ + 180.
ProMatic, SupraMatic E, P and HT Operator Boom Lengths
Specifications for different boom lengths of ProMatic, SupraMatic E, P, and HT operators:
| Operator Model / Boom Type | V1 (Rear operator boom suspension) | W (Total distance back including operator head) |
|---|---|---|
| With short boom (K) up to door height 2125 | 2775 | 3200 |
| With medium boom (M) up to door height 2375 | 3025 | 3450 |
| With long boom (L) up to door height 3000 | 3700 | 4125 |
| With special boom length on request |
