Potterton NXR3, Инструкция по установке, эксплуатации и обслуживанию, Страница: 4 / 40

SECTION 1 POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION & MAINTENANCE MANUAL
PAGE 2 NXR3
Table 3 – Technical Data
Model NXR 34 35 36 37 38 39
Number of Sections 4 5 6 7 8 9
CE Number 0085AQ0751
Output kW 90 130 170 210 250 290
1 Fuel Consumption GAS m
3
/hr 10.04 14.5 18.95 23.51 28.06 32.62
OIL Lit/hr 9.97 14.39 18.8 23.33 27.84 32.37
Input (Gross) GAS
OIL
kW 107.7 155.5 203.2 252.1 300.9 349.8
Input (Net) GAS
OIL
kW 97 140 183 227 271 315
Maximum Design Pressure Bar 6 BAR – ALL MODELS
2 Minimum Operating Pressure Bar 1 BAR – ALL MODELS
3 Nominal Flue Connection Size mm 180 mm Ø 200mm Ø
4 Flue Gas Volume GAS m
3
/hr
OIL m
3
/hr
126 182 237 294 351 409
Flue Draught Requirements 0-4 mm.w.g. – ALL MODELS
5 High Level Natural Ventilation to BS 6644 cm
2
194 280 366 454 542 630
5 Low Level Natural Ventilation to BS 6644 cm
2
388 560 732 908 1084 1260
6 Mechanical Inlet to BS 6644 m
3
/sec 0.075 0.108 0.142 0.176 0.210 0.245
7 Water Connection Size (Flow & Return) 2 ½” BSP Screwed Flanges – ALL MODELS
8 Water Flow at 11°C ∆ t lit/sec 1.95 2.81 3.68 4.55 5.41 6.28
Min water flow at 20°C ∆ t lit/sec 1.07 1.55 2.02 2.5 2.98 3.45
8
Hydraulic resistance at 11°C
∆
t
kPa 0.9 1.7 2.8 3.9 5.8 9.3
9 Cold feed size to BS 6644 Minimum Bore mm 25 32
9 Open Vent size to BS 6644 Minimum Bore mm 32 40
9 Safety Valve Size to BS 6644 Nominal Bore mm 19 25
Maximum Flow Temperature °C 90°C – ALL MODELS
10 Minimum Return Temperature (Direct
Compensation)
°C 55°C – ALL MODELS
Limit Thermostat Setting °C 110°C – ALL MODELS
11 Dry Weight Kg 612 730 848 966 1068 1184
Water Content kg 112 136 160 184 208 232
Power Requirements (Boiler Control Circuit) 230V 1Ph 50Hz, Fused 6.3A – ALL MODELS
12 Natural Gas Supply Pressure
Max
Min
25 mbar
17.0 mbar
35 Second Oil Supply Pressure
Max
Min
0.69 mbar
0 bar
See page 3 for explanatory notes Conversion table on inside back cover.