Installation
CG-SVX06D-E4
38
Interconnection
between CCUN and
Remote Condenser
The CCUN has the capability to
control the fan staging of the remote
condenser if the option is taken. Each
refrigerant circuit can control from
one up to 6 fans per circuit using a 4
output relays
(10A/250VAC/AC1/SPDT) card option
provided in the control box of the
CCUN. The external wiring to the
remote condenser shall be connected
Table 17 - Control output relays
Table 18 - Fan staging - Example : 4 fans per circuit, single speed
Table 19 - Fan staging - Example : 4 fans per circuit with first fan 2-speed
Stage
Number of Fans
1
2
3
4
Capacity [%]
0
0
0
0
0
0
0.00
1
0.5
1
0
0
0
12.50
2
1
0
0
1
0
25.00
3
1.5
1
0
1
0
37.50
4
2
0
0
0
1
50.00
5
2.5
1
0
0
1
62.50
6
3
0
0
1
1
75.00
7
3.5
1
0
1
1
87.50
8
4
0
1
1
1
100.00
Stage
Number of Fans
1
2
3
4
Capacity [%]
0
0
0
0
0
0
0.00
1
1
1
0
0
0
25.00
2
2
1
0
1
0
50.00
3
3
0
0
1
1
75.00
4
4
1
0
1
1
100.00
Output relay
Fan 1
Fan 2
Fan 3
Fan 4
Fan 5
Fan 6
Fan Option
Low Speed
High Speed
Single speed
2
Two fan speed first fan
1&4
3
Single speed only fans
3
1
2
3
4
Two fan speed first fan
1
3
4
Single speed only fans
4
1
2
3
4
4
Two fan speed first fan
1
3
4
4
Single speed only fans
5
1
2
3
4
4
4
Two fan speed first fan
1
3
4
4
4
Single speed only fans
6
1
2
3
3
4
4
4
Two fan speed first fan
1
3
3
4
4
4
Single speed only fans
directly to the terminal block for the
optional fan relay cards.
CAUTION:
Power supply to the outdoor fan
relays shall not be provided from the
CCUN unless special care to the
Voltage and to the power
consumption was evaluated.
Standard - 4 fans per circuit
Relays Energized
Low Ambient 2 Speed 4 fans per circuit
Relays Energized
