Daikin RDT-135c Installation And Maintenance Manual page 22

Introduction: Controls, Settings, and Functions
FanTrol
The FanTrol, provided on all units, is a method of head
pressure control that automatically cycles the condenser fans
in response to ambient air temperature. This feature maintains
head pressure and allows the unit to run at low ambient air
temperatures.
Table 4: R-22 FanTrol setpoints in °F with MicroTech II controls
RPS RCS
RDT RPR
Setpoint
015 to 020C 0
025 to 030C 0
036 0
045 to 045C 0
050 0
060 0
070 0
075 to 090C 0
105 0
115 0
125 0
135 0
Table 5: R-407C FanTrol setpoints in °F with MicroTech II controls
RPS, RCS, RDT
Setpoint
015 0
018 to 020C 0
025 to 036C 0
040 0
045 0
050 0
060 0
070 0
075 0
080 to 090C 0
105 0
115 0
125 0
135 0
20
B05
Differential Setpoint
5 60
5 65
5 70
5 65
5 60
5 25
5 40
5 65
5 0
5 0
5 65
5 55
B05
Differential Setpoint
5 60
5 0
5 65
5 60
5 55
5 50
5 15
5 30
5 65
5 65
5 0
5 0
5 55
5 45
RPS/RDT and RCS units have two independent refrigerant
circuits with one to four condenser fans being controlled
independently by the ambient air temperature of each circuit.
See the following sections for sequence of operation for
condenser fans with FanTrol.
Degrees Farenheit
B06
Differential Setpoint
5 —
5 —
5 —
5 —
5 —
5 70
5 70
5 75
5 58
5 55
5 35
5 25
Degrees Farenheit
B06
Differential Setpoint
5
5 —
5 —
6
5 —
5
5 70
5 70
5 75
5 75
5 52
5 45
5 30
5 20
B07
Differential Setpoint
— —
— —
— —
— —
— —
5 —
5 —
5 0
5 70
5 75
5 80
5 65
B07
Differential Setpoint
— —
— —
— —
—
5 —
5 —
5 0
5 0
5 70
5 75
5 80
5 65
B08
Differential
—
—
—
—
—
—
—
5
5
5
5
5
B08
Differential
—
—
—
—
—
—
5
5
5
5
5
5
IM 738-2