26
9.5.3 After start the operation frequency of compressor submits to following rule.
1)
When the machine is running and
Δ
T(=room temp. – setting temp.) changes, the frequency will rise or descend
a grade(maximum frequency is F8 in cooling mode, if current frequency is F1, it will not descend even
Δ
T is
reduced) (after 7 minutes).
2)
After start, if
Δ
T stays in a zone for 3 minutes, the frequency will change as follow:
Zone A – E: Current frequency rise a grade(F8 is excluded) till F8.
Zone F: Keep current frequency invariable.
Zone G: Current frequency descend s grade(F1 is excluded).
Zone H: Compressor stops after running as F1 for 60 minutes or
Δ
T is less than -2
℃
.
9.5.4 Indoor heat exchanger anti-freezing function.
If T2(indoor heat exchanger temperature) gets down to be lower than 4
℃
, frequency will descend every one
grade for 1 minute(till F0), and this action will not stop until 4
≤
T2
≤
6
℃
. If T2 gets up to be higher than 7
℃
, the
limit will be released. If T2 is lower than 0
℃
, the compressor stops and resumes when T2>5
℃
.
9.5.5 Outdoor unit current control in cooling mode(refer to the parameter table)
Remark: a) The frequency descending is based on current grade, and judges if d
escending again or resuming every 2 minutes.
b) If the current descends and stays at frequency remaining zone for 3 minutes, the frequency will
rise a grade. After 3 minutes if stays at this zone still, the frequency will rise a grade again.
9.5.6 Rating capacity test function
1) Set the indoor unit with remote controller as: high fan, 17
℃
in cooling mode, then press “TURBO” button on
controller 6 times or more within 10 seconds(make sure indoor unit receives these signals), the machine will
turn into rating capacity test mode, the buzzer will make a “di” sound for 2 seconds continuously. Also, indoor
fan will change to rating speed(
RACFAN
), the frequency of compressor will be fixed as rating value(
RATIFC
).
Any condition of above is not satisfied, the machine can not be turned into rating capacity test mode.
2)
The machine will quit from the rating capacity test mode if running for 5 hours or changing fan speed or setting
temperature.
3) In this mode, if anti-freezing protection or start and operation frequency limit caused by general protection
occurs, compressor will not run as rating frequency any more, but indoor fan will still run as rating speed. When
the frequency limit is released, the machine will resume rating capacity test. If the machine stops caused by
protection in this test mode, after release, it can not turn back to the mode automatically again.
9.5.7 Turbo function(press the “TURBO” button on remote controller)
1)
Elevate current frequency(lower than F8) to a higher grade.
2)
Indoor fan turns to turbo speed.
3) In turbo mode, general protection, maximum frequency limit, anti-freezing protection for evaporator and high
temp. protection for condenser is valid.
4)
After running for 30 minutes the machine will turn back to previous setting mode.
5) In non-turbo mode, press “TURBO” button on controller will switch current mode to turbo mode, if user press
this button again, the machine will turn back to previous setting mode.
I3COOL
I2COOL
I1COOL
comp. pause
freq. descends if curr. rises;
freq. remains if curr. descends
running normally
out
door unit
curr
ent
