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R7140G,L,M BURNER CONTROL MODULES
5 66-1153—03
a
The R7140 must have an earth ground providing a connection between the subbase and the control panel or the equipment. The earth
ground wire must be capable of conducting the current to blow the 15A fast blow fuse (or breaker) in the event of an internal short
circuit. The R7140 needs a low impedance ground connection to the equipment frame, which, in turn, needs a low impedance
connection to earth ground.
Table 3. Terminal Ratings.
Terminal No. Description Ratings
G
Flame Sensor Earth Ground
a
—
Earth G
Earth Ground
a
—
L2(N) Line Voltage Common —
L1 Line Voltage Supply (L1) 120 Vac (+10/-15%), 50 or 60 Hz (±10%).
3 Lockout/Running Interlock 120 Vac, 8A run, 43A inrush.
4 Pre-Ignition Interlock Input 120 Vac, 1 mA.
5 Pilot Valve/Ignition 120 Vac. See Table 4.
6 Interrupted/Intermittent Pilot Valve/First Stage Oil Valve 120 Vac. See Table 4.
7 Main Fuel Valve 120 Vac. See Table 4.
8 Burner Motor 120 Vac, 9.8 AFL, 58.8 ALR (inrush).
9 Alarm 120 Vac, 1A pilot duty.
10 Firing Rate High Fire 120 Vac, 75 VA pilot duty.
11 Firing Rate Common 120 Vac, 75 VA pilot duty.
12 Firing Rate Modulate 120 Vac, 75 VA pilot duty.
13 Low Fire Switch Input 120 Vac, 1 mA.
14 Firing Rate Low Fire 120 Vac, 75 VA pilot duty.
15 High Fire Switch Input 120 Vac, 1 mA.
16 Burner Controller and Limits 120 Vac, 1 mA.
17 Shutter 120 Vac, 0.5A.
18 Ignition
120 Vac,
4.5A ignition.
F Flame Sensor 60 to 220 Vac, current limited.
Table 4. Terminal Ratings.
Terminal Typical Load Maximum Rating at 120 Vac, 60 Hz
5 or 6 Ignition
Transformer/Pilot
Valve/First Stage Fuel Valve
4.5A ignition and 50 VA pilot duty, or
2.5A ignition and 75 VA pilot duty.
7 Main Fuel Valve(s) (solenoid/
motorized/diaphragm) and
Vent Valve, if required
250 VA pilot duty or 65 VA pilot duty in parallel with motorized valve(s) using a total of
1150 VA locked rotor (inrush), 460 VA to open, and 250 VA to hold or motorized valve(s)
using a total of 1500 VA locked rotor (inrush), 600 VA to open, and 250 VA to hold.