Final Wiring Check - Honeywell 7800 Series Installation Instructions Manual

SERIES 90
FIRING RATE
Q7800 SUBBASE
MOTOR
HIGH FIRE
12
COMMON
13
LOW FIRE
14
MODULATE
15
7
RECIRCULATING
AIRFLOW SWITCH
1
L1
BURNER
CONTROL
RECIRCULATING
BLOWER
L2

FINAL WIRING CHECK

1. Check the power supply circuit. The voltage and
frequency tolerance must match those of the
RM7838B,C. (A separate power supply circuit may
be required for the RM7838B,C.)
2. Add the required disconnect means and overload
protection.
3. Check all wiring circuits and complete the static
checkout in Table 3 before installing the RM7838B,C
on the subbase.
4. Install the relay module.
5. Restore power to the panel.
SERIES 90
CONTROLLER
B B
R
R
W W
LOCKOUT
INTERLOCK
1 120V, 50/60 HZ POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION (15 AMP TYPE
SC FUSE OR EQUIVALENT FAST BLOW FUSE) AS REQUIRED.
2 DO NOT CONNECT WIRES TO UNUSED TERMINALS.
3 SEE FLAME DETECTOR SPECIFICATIONS FOR CORRECT DETECTOR WIRING.
4 JR-2 CLIPPED INTERRUPTED PILOT
RM7838B - 10 SECOND MFEP
RM7838C - 15 SECOND MFEP.
5 ALARM SILENCING MAY BE NEEDED FOR RM7838B.
6 ALTERNATE WIRING FOR 4-20 MA SYSTEM.
7 ALTERNATE WIRING FOR SERIES 90 CONTROL CIRCUIT.
Fig. 4. Wiring subbase for RM7838B,C.
RM7838B, RM7838C 7800 SERIES RELAY MODULES
G
L2
LINE VOLTAGE
3
ALARM
5
4
(L1)
COMBUSTION
5
AIR FAN
LIMITS
6
STOP
SWITCH
COMBUSTION
AIRFLOW
7
SWITCH
INTERMITTENT/
INTERRUPTED
8
PILOT/IGNITION
4
MAIN FUEL
9
VALVE 1
10
IGNITION
FLAME DETECTOR
11
3
7
M7284 4-20 mA
6
FIRING RATE OUTPUT
2
MOTOR CONTROLLER
HIGH FIRE
12
F
COMMON
_
13
LOW FIRE
+
14
MODULATE
15
VALVE PROVING
16
SWITCH
MAIN FUEL
17
VALVE 2
LOW FIRE
18
START SWITCH
HIGH PURGE
19
RATE SWITCH
PREIGNITION
20
INTERLOCK (POC)
21
START
SWITCH
22
M32334
_
+
32-00211—01