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R7999C CONTROLINKS™ CONTROLLER
Name (Abbreviation)
Line Power (L1)
Ground (G)
Power Supply Neutral L2 (N)
Auto/Manual (A/M)
Fuel 1 Select (FS1)
Fuel 2 Select (FS2)
High Fire (HF)
Main (MV)
Low Fire (LF)
Limit/Ctrl In (LCI)
Feedback Air Damper
(CW)
(S)
(CCW)
Feedback Fuel 1
(CW)
(S)
(CCW)
Feedback Fuel 2
(CW)
(S)
(CCW)
Feedback FGR
(CW)
(S)
(CCW)
Remote Reset (RR)
Manual Ctrl (MNC)
Temperature Sensor (XmA+)
Temperature Sensor (XmA-)
Controller Input (CmA+)
Controller Input (CmA-)
32-00081EF—01
Table 1. R7999C Input Terminal Description.
Terminal
Number
1
Line Voltage Power: 100 to 120 Vac, 50/60 Hz (R7999C) or 200 to 240 Vac, 50/60 Hz
(R7999B), 10 VA maximum power consumption.
NOTE:
The Fuel Air control must be on the same phase as the burner control.
2
Earth ground.
3
Power Supply Neutral.
4
Auto/Manual Input, activated by line voltage ac signal. Activation of this input during
the Modulate phase of the RUN state changes the input control variable from the
CMA(+/-) to the MNC input. Maximum values same as High Fire.
5
Line voltage input that selects fuel 1 when activated. Voltage present equates to
function selected.
6
Line voltage input that selects fuel 2 when activated. Voltage present equates to
function selected.
10
Purge Position is activated by line voltage ac signal. Upon activation of the input,
R7999C commands the air damper to the programmed purge position. NOTE: 120
Vac, 2 mA maximum or 240 Vac 2 mA maximum per device model type.
NOTE:
LF and HF may not be energized at the same time. Operation will be halted if
the condition is introduced and will not start if the condition exists at power
up.
11
Main Valve Input, activated by line voltage ac signal. Activation of this input releases
the R7999C to position all actuators to the programmed position curve. Maximum
values same as High Fire. Improper insertion of the main valve input during the
sequence can cause lockouts, recycles or initiate holds.
12
Low Fire is activated by line voltage ac signal. Upon activation, R7999C commands
the air damper to the programmed Light-Off position in addition to causing the
selected fuel actuator to move to the light-off position. Maximum values same as
High Fire.
NOTE:
LF and HF may not be energized at the same time. Operation will be halted if
the condition is introduced and will not start if the condition exists at power
up.
13
Line voltage input that signals limits are satisfied and that a demand exists to run the
burner. Provides power to energize Burner Control. Voltage present equates to
function selected.
Provides position feedback for the Air actuator:
17
(CW) Clockwise rotational endpoint of the feedback potentiometer.
18
(S) Variable resistance signal from potentiometer.
19
(CCW) Counterclockwise rotational endpoint of the feedback potentiometer.
Provides position feedback for the Fuel 1 Actuator:
22
(CW) Clockwise rotational endpoint of the feedback potentiometer.
23
(S) Variable resistance signal from potentiometer.
24
(CCW) Counterclockwise rotational endpoint of the feedback potentiometer.
Provides position feedback for the Fuel 2 Actuator:
27
(CW) Clockwise rotational endpoint of the feedback potentiometer.
28
(S) Variable resistance signal from potentiometer.
29
(CCW) Counterclockwise rotational endpoint of the feedback potentiometer.
Provides position feedback for the FGR Actuator:
32
(CW) Clockwise rotational endpoint of the feedback potentiometer.
33
(S) Variable resistance signal from potentiometer.
34
(CCW) Counterclockwise rotational endpoint of the feedback potentiometer.
35/38
Remote Reset Input. A cycled contact on this terminal indicates a reset condition.
Normally-open momentary switch.
36/38
Use for manual control potentiometer. Resistance range: 0 to 5000 ohms, ±10%.
200 ohms or less equates to the 4.0 mA controller input.
4500 ohms or more equates to the 20 mA controller input.
Use linear interpolation for all other values.
Programmable also as the maximum modulation limit, if so configured.
37
Configurable Sensor Input: 4 to 20 mA positive input from temperature sensor. For the
temperature input application the endpoints are programmable from -40°F to
+1400°F. Minimum span must exceed 100°F.
38
Configurable Sensor Input: 4 to 20 mA negative input from temperature sensor.
39
Firing Rate input: 4 to 20 mA positive input from temperature or pressure controller.
40
Firing Rate input: 4 to 20 mA negative input from temperature or pressure controller.
4
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