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R7120D BURNER CONTROL MODULES
FLAME
DETECTOR
(UV)
LOCKOUT
ALARM
MAIN FUEL
VALVE(S)
INTERMITTENT
PILOT
VALVE(S)
INTERUPTED
PILOT
VALVE(S)
Fig. 8. Mounting dimensions of R7120D2000, R7120D1002, R7120D3007 Burner Control Module in in. (mm).
Terminal
Typical Load
5 or 6
Ignition
Transformer/Pilot
Valve/First Stage Fuel Valve
7
Main Fuel Valve(s) (solenoid/
motorized/diaphragm) and
Vent Valve, if required
66-1196EF—01
S2
X
S1
P
A
D
M
8
7
3
6
L2/N
5
L1/L
13
11
10
12
Fig. 7. Wiring hookup diagram for R7120D3007.
5
(127)
2
(51)
5-51/64 (147)
Table 2. Terminal Ratings.
4.5A ignition and 50 VA pilot duty, or
2.5A ignition and 75 VA pilot duty.
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.
8
RUNNING
INTERLOCK
LOW FIRE START
INTERLOCK
BURNER/
BLOWER
MOTOR
BURNER
SWITCH
VALVE
PROOF OF
CLOSURE
BURNER CONTROL
7
(178)
POWER
PILOT
FLAME
MAIN
ALARM
RESET
5 (127)
5-45/64 (145)
M32698
Maximum Rating at 120 Vac, 60 Hz
L2
L1
MASTER
SWITCH
LIMIT
OPERATING
SWITCHES
M32641
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