MrCool DIY-MULTI2-18HP230C, Service Manual

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 Product Features 4 
Total capacity Request=∑Capacity request of indoor unit
/40× modify rate(ucOutHP)
Note: The final result is an integer. If ucOutHP <1, round
down, otherwise round up.
4.1.2 Heating Mode:
Capacity area a b c d e f
Norm code (N) 3 2 1.5 1 0.5 0
Model 9K 12K 18K 24K
HP 1.0 1.2 1.5 2.5
Note: The final result is an integer.
Capacity request of each indoor unit = reference value *
HP * K_fan
K_fan: fan speed correction factor of indoor unit(Effective
for some models)
Indoor mode K_fan
Turbo H_AIR_S
High H_AIR_H
Medium H_AIR_M
Low H_AIR_L
T4 HeatT4OutHP
T4≥10°C(50°F) 1
10°C(50°F)>T4≥5°C(41°F) EE_HEAT_T4OUT_HP1
5°C(41°F)>T4≥0°C(32°F) EE_HEAT_T4OUT_HP2
0°C(32°F)>T4≥-5°C(23°F) EE_HEAT_T4OUT_HP3
-5°C(23°F)>T4≥-10°C(14°F) EE_HEAT_T4OUT_HP4
-10°C(14°F)>T4≥-17°C(1.4°F) EE_HEAT_T4OUT_HP5
-17°C(1.4°F)>T4 EE_HEAT_T4OUT_HP6
Total capacity Request=∑Capacity request of indoor unit
/40× modify rate(ucOutHP)x HeatT4OutHP
(HeatT4OutHP is effective for some models)
Note: The final result is an integer. If ucOutHP <1, round
down, otherwise round up.
4.2 Outdoor Fan Control
4.2.1 Cooling Mode
T4
℃
45
43
Supper high fan speed
28
26
High fan speed
25
23
Middle fan speed
22
20
Low fan speed
19
17
Supper low fan speed
10
9 Breeze fan speed
0
-1 F fan speed
-5
-6
G fan speed
-10
-11
H fan speed
I fan speed
When the compressor is started, the initial fan speed
is determined according to the current T4 temperature
range. At other times, the T4 temperature range is
invalid. After holding for 30 seconds, adjust the fan speed
according to the T3 temperature: in the fan speed increase
zone, the fan speed increases by one gear, and the
maximum is high fan. In the holding zone, the fan speed
remains unchanged. In the decrease zone, the fan speed
drops by one gear, and the lowest is I gear. When the fan
speed is I gear, if it enters the fan stop zone, the fan will
stop.