Final Wiring Check; Static Checkout - Honeywell 7800 Series Installation Manual

S445A
START-STOP
STATION
B
INTERNAL
JUMPER
D
START
IGNITION
FOR DIRECT SPARK IGNITION
(OIL OR GAS)
8
9
M15108A

Final Wiring Check

1. Check the power supply circuit. The voltage and
frequency tolerance must match those of the
RM7885A. A separate power supply circuit may be
required for the RM7885A. Add the required
disconnect means and overload protection.
2. Check all wiring circuits and complete Static
Checkout in Table 3 before installing the RM7885A
on the subbase.
3. Install all electrical connectors.
4. Restore panel power.

STATIC CHECKOUT

After checking all wiring, perform this checkout before
installing the RM7885A on the subbase. These tests verify
that the Q7800 Wiring Subbase is wired correctly, and the
external controllers, limits, interlocks, actuators, valves,
transformers, motors and other devices are operating
properly.
4
STOP
A
C
FLAME DETECTOR
L2
MAIN VALVE
1
2
3
4
Fig. 7. RM7885A wiring with R4155 alarm silencing relay.
Q7800
G
L2
(L1)
3
ALARM
6 4
5 2
5
6
LIMITS
7
INTERMITTENT
8
PILOT
MAIN FUEL
9
VALVE(S)
10
F
4
3
120 VAC, 50/60 HZ (RM7885A); 220-240 VAC, 50/60 HZ (EC7885A) POWER SUPPLY.
PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
DO NOT CONNECT ANY WIRES TO UNUSED TERMINALS.
SEE FLAME DETECTOR SPECIFICATIONS FOR CORRECT WIRING.
220-240 VAC TO 120 VAC, 10 VA MINIMUM, STEPDOWN TRANSFORMER
(NOT PROVIDED) REQUIRED TO DRIVE SHUTTER (EC7885A ONLY).
WARNING
Explosion Hazard.
Can cause severe injury, death, or equipment
damage.
1. Close all manual fuel shutoff valve(s) before
starting these tests.
2. Use extreme care while testing the system. Line
voltage is present on most terminal connections
when power is on.
3. Open the master switch before installing or
removing a jumper on the subbase.
4. Before continuing to the next test, be sure to
remove test jumper(s) used in the previous test.
5. Replace all limits and interlocks that are not
operating properly. Do not bypass limits and
interlocks.
11
RM7885A 7800 SERIES RELAY MODULES
12
13
14
15
16
2
17
18
19
20
21
22
L1
(HOT)
L2
MASTER
1
SWITCH
32-00215—01