York B4IH-360, Technical Information

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10 - Characteristics of indoor fan
Dual turbine fan, driven by one single belt drive motor. Motor pulley is of adjustable diameter at ½ turn intervals.
Model
Motor 1
Motor pulley
(adjustable)
Fan pulley
(fixed)
Belt
kW
Casing
type
Ø pulley
(mm)
Ø shaft
(mm)
Ø pulley
(mm)
Ø shaft
(mm)
Length
(mm)
Ref. Amount
Standard drive
360 9.2 12MBA 152/190 8 250 25 1 790 BX69 2
480 11 12MB 152/190 8 250 25 1 790 BX69 2
High pressure drive
(HPD)
(optional)
360 11 12MB 152/190 8 250 25 1 790 BX69 2
480
15 160L 152/190 42 250 25 1 840 BX71 2
1) All motors are of the fully enclosed type, fan-cooled at 1.450 r.p.m., with a solid base and a 1.15 service factor.
See section No. 11 (Indoor fan performances) to determine motor pulley setting and the type of drive needed.
11 - Indoor fan performances
- For units with 0% outdoor air and 100% return, dry indoor coil and standard EU air filters.
-
Attention:
Before going on to the tables, do not forget to add the pressure drop due to the gas heating on models
D4IG and the accessories included, whenever applicable (see tables in section No. 12) to the pressure needed for the
installation.
- The motor pulley is factory set to 4 opening turns. See section No. 14 for belt adjustment and tensing procedure.
-
Attention:
When starting the installation up, and once air distribution is balanced in the conditioned space, impulse air
flow should be checked.
11.1.- Models 360, applications with vertical ducts (bottom)
ASP = Available static pressure
11.2.- Models 360, applications with horizontal ducts (side)
Opening
adjustment
of motor
pulley
(No. of turns)
Air flow m /h
19 000 20 000 21 000 22 000 2 000
A.S.P. kW A.S.P. kW A.S.P. kW A.S.P. kW A.S.P. kW
0 615 10. 570 10.8 525 11.6 480 12.2 445 12.8
1 50 9.6 490 10.2
450 10.8
410 11.4 65 11.9
2
460 8.9
420 9.4 85 10.0
50 10.6
00 11.
95 8.5 65 9
25 9.6
285 10.2 240 10.7
4 50 7.8 10 8. 275 8.9 20 9.5 195 10.0
5 295 7.2 260 7.7 220 8.
185 8.7
145 9.5
6 250 6.6 215 7.1 175 7.5 15 8.2
100 8.9
Opening
adjustment
of motor
pulley
(No. of turns)
Air flow m /h
19 000 20 000 21 000 22 000 2 000
A.S.P. kW A.S.P. kW A.S.P. kW A.S.P. kW A.S.P. kW
0
560 10.5 510 11.0
455 11.9
465 12.6 55 12.9
1 485 9.8 440 10.4
90 10.9
45 11.7 290 12.2
2 420 9.1
80 9.5
5 10.1 295 10.8
240 11.5
55 8.6 25 9.1
280 9.7
20 10. 180 10.8
4 15 7.9 275 8.4 240 8.9
190 9.6
145 10.1
5 265 7.2 20 7.7 185 8. 150 8.8
110 9.7
6 225 6.7 190 7.2 150 7.5 105 8.2 70 8.8
Standard drive (9.2 kW)
Optional HPD drive (11 kW)
Out of range area
ASP = Available static pressure
Standard drive (9.2 kW)
Optional HPD drive (11 kW) Out of range area