Startup Control - Kaisai 06RY1 Service Manual

3 Startup Control

3.1 Compressor Startup Delay Control
In initial startup control and in restart control (except in oil return operation and defrosting operation), compressor startup
is delayed such that a minimum of the set re-start delay time has elapsed since the compressor stopped, in order to
prevent frequent compressor on/off and to equalize the pressure within the refrigerant system. The compressor re-
start delays for cooling and heating modes are set on the user interface. Refer to the Mono Engineering Data Book Part 3,
7.5 "COOL MODE SETTING Menu" and Part 3, 7.6 "HEAT MODE SETTING Menu".
3.2 Compressor Startup Program
In initial startup control and in re-start control, compressor startup is controlled according to outdoor ambient
temperature. Compressor startup follows one of two startup programs until the target rotation speed is reached. Refer to
Figures 3-3.1, 3-3.2, 3-3.3 and 3-3.4.
Figure 3-3.1: 6kW to 12-16kW Compressor startup program
Figure 3-3.2: 8-10kW Compressor startup program
202008
Hz
90
80
70
60
50
42Hz
38Hz
40 40S
32Hz
40S
30
60S
20
10
1,2
Hz
56Hz
40S
42Hz 42Hz
90S 40S
36Hz
60S
Midea CAC Confidential
1,2
when ambient temperature is above 3°C
TARGET FREQUENCY
目标频率
82Hz
120S
70Hz
66Hz
120S
40S
56Hz
40S
when ambient temperature is above 11°C
TARGET FREQUENCY
目标频率
82Hz
120S
70Hz
40S
66Hz
40S
M thermal Mono
TIME
时间
TIME
时间
Mono
17