9.increasing the fan speed, Specifications 1-9 increasing the fan speed – Sanyo KHH2672R / CH2672R User Manual

Page 86

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I-82

SM831148

1. Specifications

1-9 Increasing the Fan Speed

Jumper cable

Jumper cable

Electrical component box

(At shipment)

(Jumper cable installed)

2159_M_I

Fan motor socket

Fan

motor

900

Air Flow (CFM)

External Static Pressure

0

50

0

0.1

0.2

0.3

0.4

0.5

150

700

500

300

Limit line

L

100

1982_U_I

H

HH

(Pa)

(inAq)

Limit line

HT

Air Flow (CFM)

External Static Pressure

0

50

0

0.1

0.2

0.3

0.4

0.5

0.6

0.8

150

200

500

1000

Limit line

L

H

HH

HT

100

1983_U_I

(inAq)

(Pa)

Limit line

NOTE

HT : Using the booster cable

H : At shipment

How to read the diagram

The vertical axis is the external static pressure (Pa) while the horizontal axis represents the AIR FLOW (CFM).
The characteristic curves for “HT”, “H”, “M” and “L” fan speed control are shown.
The nameplate values are shown based on the “H” air flow. For the 26 type, the air flow is 636 CFM, while the
external static pressure is 49 Pa at “H” position. If external static pressure is too great (due to long extension of
duct, for example), the air flow volume may drop too low at each air outlet.
This problem may be solved by increasing the fan speed as explained above.

If external static pressure is too great (due to long extension
of ducts, for example), the air flow volume may drop too low
at each air outlet. This problem may be solved by increasing
the fan speed using the following procedure:

(1) Remove 4 screws on the electrical component box and

remove the cover plate.

(2) Disconnect the fan motor sockets in the box.

(3) Take out the jumper cable (sockets at both ends) clamped

in the box.

(4) Securely connect the jumper cable sockets

between the disconnected fan motor sockets in step 2.

(5) Place the cable neatly in the box and reinstall the cover

plate.

Indoor Fan Performance

26 Type

36 Type

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