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BROWN
YELLOW
24 VDC POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
1
2
DO NOT CONNECT ANY WIRES TO UNUSED TERMINALS.
3
FOR A CONTINUOUS OR STANDING PILOT, INSTALL AN EXTERNAL RELAY TO SWITCH THE F LEAD. THE
RELAY MUST HAVE GOLD-CLAD OR GOLD-FLASH CONTACTS AND A 120 VAC COIL. POWER THE RELAY
COIL FROM THE Q7800 SUBBASE TERMINAL 8. CONNECT THE RELAY CONTACTS BETWEEN THE F LEAD OF
THE DETECTOR AND THE F TERMINAL OF THE Q7800 SUBBASE. A 24 VDC RELAY IS ACCEPTABLE TO
USE IN THIS TYPE OF APPLICATION. USE THE N.O. PILOT DUTY CONTACTS.
Mounting Dust Cover
1. Align the two interlocking ears of the Dust Cover with
the two mating slots on the RM7824A (see Fig. 10).
2. Insert the two interlocking ears into the two mating slots,
and with a hinge action, push on the upper corners of
the Dust Cover to secure it to the RM7824A.
3. Be sure the Dust Cover is firmly in place.
24 VDC ALARM
BURNER
CONTROLLER/LIMITS
INTERMITTENT
PILOT/IGNITION
MAIN FUEL
VALVE(S)
IGNITION
C7015 INFRARED
WHITE
(LEAD SULFIDE)
DETECTOR
OR
C7024E,F
BLUE
ULTRAVIOLET
FLAME DETECTOR
WHITE
WHITE
RED
BLACK
Fig. 7. Wiring the RM7824A.
7800 SERIES RM7824A RELAY MODULE
Q7800
G
12
L2
13
3
14
4
15
5
16
2
6
17
7
18
8
19
9
20
10
21
F
22
3
MASTER
SWITCH
L2
3
L2
Installing Plug-In Flame Signal Amplifier
1. Disconnect the power supply before beginning
installation to prevent electrical shock and equipment
damage. More than one disconnect may be involved.
2. Align the amplifier circuit board edge connector with the
keyed receptacle on the RM7824A. Verify that the
amplifier nameplate faces away from the Relay Module
(see Fig. 10).
3. Push in the amplifier until the circuit board is fully
inserted into the receptacle and then push the amplifier
toward the RM7824A retaining clasp.
4. Verify the amplifier is firmly in place.
5. Perform all required checkout tests.
9
24 VDC
+
–
1
M5820A
65-0155—2
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