Mechanical; Technical Data - Viessmann Vitoflex 300-UF Series Installation And Operating Instructions Manual

Mechanical

Technical Data

Boiler model
Maximum output
1
Minimum output
2
Efficiency
3
Fuel Moisture content
4
Size of wood chips
Flue gas figures
Connection flue gas pipe
Mass flow rate; W5; O
2
Volume flow; W5; O 6%; 302°F (150ºC)
2
Mass flow rate; W35; O
Volume flow;W35; O 8%; 302°F (150ºC)
2
Average flue gas temperature at full load
Average flue gas temperature at partial load
Chimney draft required
Electrical connections
Electrical connections, total
Ignition device
Flue gas exhaust blower
In-feed auger
1
Primary air blower
2
Primary air blower
Secondary air blower
Grate drive unit
Electric power consumption at full load
Electric power consumption at partial load
Heating
Water side resistance (diff. 27°F / 15 K)
Boiler water volume
Heating surface
Volume on heating gas side
Volume of ash container for grate ash
Volume of ash container for flue gas cyclone
6
Test pressure
Maximum allowable working pressure (water)
Maximum water temperature
Minimum return temperature
Weight
Weight of combustion chamber
Weight of pressure vessel (30 psi)
Weight of pressure vessel (60 psi)
Weight of displacement rods
Weight of flue gas exhaust blower
Weight of in-feed auger
Total weight without water (30 psi)
Total weight without water (60 psi)
Total weight with water (30 psi)
Total weight with water (60 psi)
1 Minimum load:
2 Moist fuels:
3 Wet fuels:
4 Specification:
5 Flue gas temperature: An increase is possible by removing the displacement rods [Full load 86°F (30°C);
6 Pressure:
7 Overall weight:
Other influences:
20
MBH (kW)
MBH (kW)
A in. mm
7
6% lb/s (g/s)
ft³/s (m³/s)
8%; lb/s (g/s)
2
ft³/s (m³/s)
5
°F (°C)
5
°F (°C)
kW
kW
kW
kW
kW
kW
kW
kW
kW
kW
"wc (mbar)
USG (L)
ft² (m²)
USG (L)
USG (L)
USG (L)
psi (bar)
6
psi (bar)
°F (°C)
°F (°C)
lb (kg)
lb (kg)
lb (kg)
lb (kg)
lb (kg)
lb (kg)
7
lb (kg)
7
lb (kg)
7
lb (kg)
7
lb (kg)
Operation with modulated control (Infinitely variable power control)
Low load with ON Qmin / OFF (Stop-and-go mode)
Efficiency: Specification with displacement rods and flue gas recirculation system
or dry fuels (W5 to W20) without flue gas recirculation system-reduced values
>W35 further limitations regarding output, degree of efficiency and control behavior
See Section Wood Fuel Requirements
Partial load 50°F (10°C)]
Per ASME Sec. IV
Includes displacement rods
Fuel, water content, ash content, pneumatic cleaning system yes/no; track time (number of
operating hours without cleaning). Specifications for the start of the track time [toward the end of
the track time there is an increase in the flue gas temperature by approx. 59°F (15°C).
UF 390 UF 530
1331 (390) 1808 (530)
334 (98) 450 (132)
%
G 30 / G 50 as per CAN/CSA-B366. 1-M91
13b (350) 13c (350)
0.48 (219) 0.65 (297)
9.18 (0.26) 12.71 (0.36)
0.67 (303) 0.91 (412)
13 (0.37) 17.5 (0.50)
Pa
6.42 8.28
1.6 1.6
1.5 2.2
1.1 1.5
0.14 0.3
1.0 1.0
.9 1.5
0.12 0.12
3.36 4.68
2.75 3.83
5.12 (13) 9.23 (23)
303 (1150) 383 (1450)
291.8 (27.1) 457.5 (42.5)
407 (1540) 602 (2280)
6570 (2970) 9343 (4238)
4993 (2265) 7094 (3218)
4993 (2265) 7094 (3218)
644 (292) 721 (327)
132 (60) 172 (78)
337 (153) 337 (153)
12820(5815) 17780(8065)
12820(5815) 17780(8065)
15355(6965) 20964(9509)
15355(6965) 20964(9509)
Vitoflex 300-UF Installation & Operating
UF 720 UF 950
2457 (720) 3242 (950)
614 (180) 812 (238)
85%
W 50
13c (350) 15c (400)
0.89 (404) 1.17 (532)
17 (0.48) 22 (0.63)
1.23 (560) 1.62 (736)
23.6 (0.67) 31 (0.88)
320 (160)
248 (120)
±0
8.28 9.51
1.6 1.6
2.2 2.2
1.5 2.2
0.3 0.48
1.0 1.0
1.5 1.85
0.12 0.12
4.68 5.29
3.83 4.28
17.26 (43) 10.5 (26)
488 (1850) 515 (1950)
597.4 (55.5) 805.2 (74.8)
774 (2830) 1070 (4050)
63 (221) - 240 (800)
63 (221) - 240 (800)
113 (7.8)
30 or 60 (2 or 4)
250 (120)
149 (65)
10919 (4953) 12740(5779)
9275 (4207) 12965 (5881)
9936 (4507) 13627 (6181)
869 (394) 1186 (538)
178 (78) 181 (82)
3.37 (153) 419 (190)
21572(9785) 27492(12470)
22234(10085) 28153(12770)
25675(11646) 31775(14413)
26336(11946) 32437(14713)
UF 1250
4265 (1250)
1065 (312)
17c (450)
1.54 (700)
29 (0.83)
2.13 (968)
40.6 (1.15)
11.31
1.6
4.0
2.2
0.48
1.0
1.85
0.12
6.91
5.6
18 (45)
660 (2500)
979.6 (91.0)
1367 (5210)
14374(6520)
14643 (6642)
15525 (7042)
1186 (538)
236 (107)
419 (190)
30858(13997)
31740(14397)
36330(16479)
37212(16879)