Data sheet
Fan speed controller
Type Saginomiya RGE
Fan speed controller RGE stabilizes condensing
pressure by changing condenser’s fan speed.
Widespread usage in refrigeration and air
conditioning units which are operated
throughout the entire year.
Reliable sensing mechanism using bellows.
Suitable for single phase and 3-phase fan motors.
Features
Approvals
• Wide regulating range
• Easy setting and adjusting
• Simple and easy electrical connection
• Multiple fans control
CE in accordance to EMC and LVD directives,
UL (only selected models)
• Minimum speed and cut -o working modes
• Weather-proof enclosure (IP54)
© Danfoss | DCS (az) | 2018.04
DKRCC.PD.LA0.C1.02 | 1
Effective Voltage R.M.S (V %)
Effective Voltage R.M.S (V %)
Data sheet | Danfoss Saginomiya fan speed controllers, Type RGE
Function
1. Adjusting screw
2. Bellows
3. Range setting pointer
(dual marking 11 and 19bar)
4. Change over switch
5. Terminal board
6. 1/4” flare with depression pin
(7/16-20 UNF)
Technical data
Setting point is increased by turning the range
adjusting screw clockwise. It is decreased by
turning the screw counter clockwise. Adjustment
1
should be within the range indicated for the
setting pointer.
Cut o: Fan motor stops when the pressure
2
decreases below the value Pmin.
Min. Speed: Fan motor operates at the Minimum
3
Speed when the pressure decreases below the
value Pmin.
F.V.S = Full Voltage Set Point (pressure setting for
5
maximum speed)
E.P.B = Eective Proportional Band
4
4
P
= (F.V.S – E.P.B)
min
The RGE controls the speed of the condenser fan
6
in refrigeration and air conditioning units that
work all year long.
It keeps the condensing pressure at a steady level
by changing the speed of the fan according to
the required condensing pressure.
3A single-phase type 4A, 6A, 8A single-phase type Three-phase type
The operating characteristics
may vary according to voltage,
frequency and fan motor
characteristics
External
Forced Operation
Ground
Circuit Breaker or Fuse
Switch
Switch
On: Full speed
Off: Auto speed
Fan Motor
• 2 terminals
• External forced operation switch
Ground
Circuit Breaker or Fuse
On: Full speed
Off: Auto speed
• 4 terminals
• External forced operation switch
On - fan is forced to operate at Maximum speed
regardless of the pressure.
O - fan operates according to the RGE function,
with speed varying according to pressure.
For single-phase type, if an external forced
operation switch is required, then the switch and
Single-phase type Three-phase type
100
95
50
45
35
Min. speed
Min. speed
Max. speed
230V
Cut off
Pmin
@ 50
0
3
2
E.P.B
(fixed)
H
V
z
Hz
0
6
@
F.V.S
(adjustable)
Pressure
Circuit Breaker or
Fuse
Power Supply
External
Forced Operation
Switch
Fan Motor
External forced
operation switch
On: Max. speed
Off: Auto speed
Fan
Motor
• 8 terminals
• External forced operation switch
connecting cables (not supplied) should have
current rating higher than the fan motor rating.
For example, a 4A switch is recommended for the
3A RGE model.
For three-phase type, use a forced operation
switch with non-voltage contact signal.
100
95
50
35
Min. speed
Max. speed
00
2
Cut off
Pmin
4
&
@
00V
E.P.B
(fixed)
z
H
60
50/
F.V.S
(adjustable)
Ground
Switch
Pressure
© Danfoss | DCS (az) | 2018.04
DKRCC.PD.LA0.C1.02 | 2