10
TEST RUNNING
6.4 Test Running Record
Compile test running records according to Table 4. Utilize these records for periodic operation checks, as
well as for troubleshooting.
Operational Sequence Chart
: ON
: OFF
Operation
Equipments
*Main Power Switch
OFF
ON
*Room Thermostat
FAN
AUTO
ON
AUTO
COOL
OFF
ON
TH
(Stage)
COOLING CALL
1st
… ON
ON
ON
ON
OFF
ON
2nd
… ON
ON
ON
OFF OFF
ON
Electric
Components
Indoor Fan Motor
MIF
Outdoor Fan Motor 1,2
MOF1,2
Outdoor Fan Motor 3
MOF3
RUA-
13AT3S
through
RUA-
20AT3S
Compressor 1
MC1
Compressor 2
MC2
Start Delay Time
RUA-
30AT3S
Compressor 1,2 MC1,2
Compressor 3
MC3
Start Delay Time
Safety Devices
Close Close Close Close Close Close Close Close Open
Fig. 9-1. Standard Operation Sequence
NOTES:
1. *
：
Field Supplied.
2.For models RUA-13AT3S and RUA-15AT3S, the No.1 condenser fan starts and stops at the same period
at which the No.1 compressor starts and stops, and No.2 condenser fan operates together the No.2
compressor.
3.For models RUA-20AT3S and RUA-30AT3S, non-cycling condenser fan start and stop with the No.1
compressor (leading compressor). Other cycling fan will operate in accordance with the pressure switch
activation for fan cycling control.
4.For model RUA-30AT3S, after 3 min. the No.1 compressor starts, after 3 min.30sec. the No.2
compressor starts and after 4 min. the No.3 compressor starts.
After 3 min.
After 4 min.
After 3 min. and
After 3 min.30 sec.
After 4 min. (4)
