Sharp AY-AP7FHR Service Manual download pdf (Page 10)

AYAP7FHR

3 – 2

2.3. Heat operation

The compressor turns on or off, at State 2, turns on continuously at

State 1 & 3.

3. FAN SPEED

Fan speeds are given by the indoor fan motor, "DL"~"HH" which are

available in the following operation mode.

4. HOT-KEEP

This function automatically controls the on-off operation of the indoor

fan motor in accordance with the ON-OFF operation of the compressor

during the heating operation, thereby preventing the air conditioner

from delivering a cold air when the compressor is off.When the room

temperature enters area " D ", the compressor is turned off, and the

indoor fan motor is turned off after rotating at "HUL" for 30 seconds. 3

minutes after turning on the compressor, the compressor is turned on

for 3 minutes. At 10 seconds after turning on the compressor, the

indoor fan motor is turned on. The next compressor OFF time is

accordance with the room temperature area when 3 minutes elapse

after turning on the compessor. If the area "D ", compressor OFF time

is for 3 minutes and if " E ", it's for 8 minutes. If the area " F ",compres-

sor is not turned on. Only the inddor fan motpr is turned on 8 minutes

later for 3 minutes.

5. PREHEAT AIR FLOW

This function is intended to prevent cold air from being discharged

when the heating operation starts or when defrosting. When the indoor

pipe temperature is below 29°C at the begining of the heat operation

or after defrosting, the indoor fan motor stays.

When the indoor pipe temperature gets higher than 29°C, the fan

motor is turned on at speed "HUL" after compensation of starting.

When the indoor pipe temperature exceeds 35°C, the specified fan

speed is restored. When the indoor pipe temperature falls below 30°C,

the fan speed shifts down to "HUL". And, when the indoor pipe temper-

ature falls below 23°C, the fan motor turns off. Then, over 29°C , it

turns on again at speed "HUL".

6. OVERHEATING PROTECTION SYSTEM

When overloading occurs during the heating operation, this system

controls the outdoor fan motor according to the indoor pipe tempera-

ture to prevent the overloading of the compressor and restrain the rise

in high pressure.

When the indoor pipe temperature exceeds U1digC, the outdoor fan

motor is turned off, and when the indoor pipe temperature falls

U2digC, the outdoor fan motor turns on.

Fan speed Fan switch Fan switch

(AUTO)

AY-

AP7FHR

AY-

AP9FHR

DL —

DRY

700 770

DH — 790 820

CL COOL SOFT — 650 650

CAL —

COOL

790 820

CM COOL LOW 950 1010

CAH — 1040 1100

CH COOL HIGH — 1055 1115

HUL — — 780 800

HL HEAT SOFT — 880 900

HAL —

HEAT

880 900

HM HEAT LOW 980 1050

HAH — 1100 1130

HH HEAT HIGH — 1175 1205

(r.p.m.)

Room temperature

Preset temperature

Room

temperature

transition

States1&3:Compressor ON

States 2 : Compressor OFF/(ON)

(Hot-keep function)

Compressor

OFF

Indoor

fan motor

HUL HUL

3min.

10 sec. 10 sec.30 sec. 30 sec.

3 min.

area"D":3min.

area"E":8min.

area"F":8min.

When area is

"D" or "E"

When area is

"F" or "E"

Area"D":Tobecoming below line H2 after becoming above line H1

Area"E":Tobecoming below line H1 after becoming above line H02

Area"F":Tobecoming below line H02 after becoming above line H01

Pipe temperature(°C)

OFF

UL UL UL

OFFPreset

Fan speed

OFF

U1 and U2 are defferent by the time.

1 within 3 minutes

2 over 3 minutes

MODELS

Fan

LIne

HH HAH HM

121212

53°C 53°C 53°C 53°C 54°C 54°C

49°C 52°C 49°C 52°C 50°C 53°C

53°C 53°C 53°C 53°C 54°C 54°C

49°C 52°C 49°C 52°C 50°C 53°C

MODELS

Fan

LIne

HAL HL HUL

121212

54°C 54°C 54°C 54°C 54°C 54°C

50°C 53°C 50°C 53°C 50°C 53°C

54°C 54°C 54°C 54°C 54°C 54°C

50°C 53°C 50°C 53°C 50°C 53°C

AY-AP7FHR

AY-AP9FHR

AY-AP7FHR

AY-AP9FHR

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 35 36

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Sharp AY-AP7FHR Service Manual Page 10

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