Nortek Reznor UDSA-4E 011, Установка, пусконаладка, обслуживание

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I-UDSA-UK (02-19) PN 06 00116 UDSA R3, page 5
1) Gas Appliance Classifications for Approved Venting Methods based on CEN-report CR1749:2001.
2) There is a difference between the gas connection diameter and the diameter of the supply line. Always use the most adequate dia of the supply line
to minimize the pressure drop through the gas pipes - if necessary, reduce the diameter of the supply line at the inlet of the unit.
3) Height from floor to bottom surface of heater. These are recommendations only. Positioning of unit heaters for proper performance is application
dependent. Operation is affected by other air moving equipment in the space, obstructions to the airflow, draughts and/or close proximity to doors
or windows, etc ...
Care should be taken to avoid mounting the heaters above these recommendations, unless downturn nozzle options are used,
as significant stratification may occur resulting in poor floor coverage and higher energy losses through the roof structure.
4) Isothermal cond/-20°C ambient air temperature, discharge louvres zero deflection, v = 0,5m/s. The air throw will be influenced by the height
of the building, mounting height of the unit, ambient temperature & adjustment of the louvres.
5) Sound pressure measured in dB(A) : at 5m distance of the heater with A=160m² & Q=2
Table 4 : Technical data
UDSA-4E 011 015 020 025 030 035 043 050 055 064 073 085 100 120 145
Gas category II2H3+
Combustion air and flue,
type B installation (1)
B22
Combustion air and flue,
type C installation (1)
C12, C32, C42,C52, C62, C82
Flue and
combustion air
connection
collars
mm 80 100 130
Heat input (Hs) kW 13,2 17,6 22 30,8 35,2 41,8 50,8 58,6 66 77,7 88 102,7 117,3 155.5 176.1
Heat input (Hi) kW 11,9 15,9 19,8 27,8 31,7 37,7 45,8 52,8 59,5 70 79,3 92,5 105,7 140.0 158.6
Heat output kW 11 14,6 18,2 25,5 29,2 34,7 42,1 48,6 54,7 64,4 73 85,1 97 127.5 145.8
Thermal
efficiency
% 92 91.1 91.9
Gas
consumption:
natural gas (G20)
m³/h 1,26 1,68 2,1 2,94 3,36 3,99 4,85 5,59 6,3 7,41 8,39 9,79 11,18 14.81 16.78
Gas
consumption:
propane (G31)
kg/h 0,93 1,24 1,55 2,16 2,47 2,94 3,57 4,12 4,64 5,46 6,18 7,21 8,24 10.92 12.36
Gas connection
size, not supply
line (2)
inch 1/2 3/4 1
Temperature rise K 32 29 28 27
Air flow m³/h 1020 1360 1700 2385 2725 3510 4535 5180 5830 6810 7770 9065 10360 13608 15552
Motor speed rpm 1390 1450 930 1250 920 910 1360 940 930 900 890 1050 930 900
Recommended
mounting
height (3)
m 3 4
Horizontal
throw (4)
m 10 13 16 20 25 28 32 35 33 41 39 33 41
Sound
pressure (5)
dB(A) 46 47 48 43 49 44 45 56 51 52 54 55 60 55 57
Electrical service,
class IP20
230/240V 1N ~ 50Hz
Total electrical
rating
W 121 126 273 270 290 500 770 960 1150 1680
Weight (net) kg 33 38 40 54 57 86 99 102 114 118 143 160 179 245 263
6
TECHNICAL DATA