5 automatic defrost, Service manual 17 part 2 functions & controls – LG General Wall Mounted-Inverter Type User Manual

Page 17

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Service Manual 17

Part 2 Functions & Controls

5.5 Automatic defrost

5.5.1 9,12kBtu/h Model

• While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing,

reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit.

• Defrosting control is available 40 minutes later since heating cycle started and the difference of the pipe tem-

perature of outdoor unit reaches above option 1.

• The defrosting control is available without reference to heating operation time only if the pipe temperature of

outdoor unit reaches below option 2.

Setting Freq.

Operating
Freq. Of
Comp
(Comp off
Inapplicable.)

4-Way

Indoor
FAN

Indoor
FAN

Pre-Heat
LED

5sec 5sec

Minimum Time
Of Heating

Main Deice time

30 sec

10 sec

1min

ON

OFF

Hi Speed

ON

Setting
Speed

Hot

Start

OFF

Super low speed

° low speed

ON

OFF

OFF

Deice STEP

0

1

2

3

4

5

6

EEV
Open step

The Degree
of Superheat
Control

Starting Step

off

Min (Option)_(12)

Step 3 (Option)_(15)

300

(Option)_(14)

off

Step 5 (Option)_(13)

Min (Option)_(12)

off

15 sec

Min (Option)_(12)

Min (Option)_(12)

Operating
Freq. Of
Comp
(Comp off
Applicable.)

Step 3 (Option)_(15)

Step 5 (Option)_(13)

Setting
Speed

Setting
Speed

Setting Freq.

Setting
Freq.

>5

>5

>5

-25

-25

-30

-30

Option 2

Expected heating operating time

And Heating operating time 40 minutes

The minimum Time of
Heating(sec)

>4

Option 1

-10˚C(14˚F) less than

0˚C(32˚F) more than

-10~-5˚C(14~23˚F) between -5~0˚C(23~32˚F) between

The mean outdoor
temperature

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