52
Control modes
Remarks
Control details
2. Fan
2-1. Normal control
Fan rotation times (rpm) will be controlled according to the outdoor outside
temperature (TH7).
• Control method: Inverter control
• Rotation times: Fan step (N) = 0, 9 and 10
3. Bypass valve control
(RP3 only)
3-1. Normal control
Start-up control in HEAT operation
[Bypass valve ON/OFF]
ON for 3 minutes after the compressor gets started operating.
N=10
N=9
N: Current fan step
4
Outside temperature (TH7)
6
[
:
]
2-2. Start-up control in HEAT operation at low outside temperature (RP3 only)
[Requirement] All of following conditions should be satisfied.
a. The first start-up after the power has been reset, or the start-up in HEAT
mode after 30 minutes have passed since the compressor stopped.
b. Outside temperature (TH7)
[
0
:
[Control details]
Fan step will be set to 0 (N = 0) for 2 minutes after the start-up of compressor.
Start-up control will turn into the normal control after the 2-minute operation of compressor.
2-3. Others
(1) Fan also stops when the compressor is being stopped. (Fan step = 0)
However, fan step will be set to 10 while the compressor is being
stopped due to the abnormal heat sink temperature (Error code = U5).
At that time, the compressor is just waiting for 3 minutes to restart.
(2) In case of RP3, fan is being stopped for 2 minutes after the start-up of
compressor in HEAT mode at low outside tempereture (Fan step = 0)
0
1
2
3
4
5
6
7
8
9
10
Step
(N)
RP2.5, 3 RP4-6
Step (N)—Rotation
times(rpm)
Rotation times(rpm)
0
95
115
135
165
200
245
305
450
700
720
RP1.6, 2
0
105
135
165
205
265
340
430
530
680
700
0
125
155
175
200
240
285
360
465
700
720
OCT04A-2.qxp 04.9.29 9:15 AM Page 52
