Installation - Honeywell 7800 Series Manual

RM7840E,G,L,M

INSTALLATION

!
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SERVERE INJURY, OR DEATH
To prevent possible hazardous burner operation,
verification of safety requirements must be per-
formed each time a control is installed on a
burner.
Fig. 6—Internal block diagram of RM7840 (see Figs. 7, 8, 9 or 10 for detailed wiring instructions).
4
CONFIGURATION
JUMPERS
RUN/TEST
SWITCH
RESET
PUSHBUTTON
SAFETY RELAY
CIRCUIT
STATUS LEDs
20
PRE-IGNITION
INTERLOCK
RUNNING/
LOCKOUT
INTERLOCK
LIMITS CONTROLLER
6
LOW FIRE SWITCH
18
HIGH FIRE SWITCH
19
6K1
3K1
KEYBOARD
DISPLAY MODULE
DDL
RS485
1
DDL 2
3
REMOTE
COMMUNICATIONS
RESET
1 PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
WHEN INSTALLING THIS PRODUCT...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and marked
on the product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced, flame safe-
guard service technician.
4. After installation is complete, check out the product
operation as provided in these instructions.
L1
(HOT)
L2
1
120 Vac
PLUG-IN PURGE
TIMER CARD
FLAME SIGNAL
PLUG-IN
FLAME
MICROCOMPUTER
AMPLIFIER
TEST
2K
3K
4K
RELAY
5K
DRIVE
RELAY
CIRCUIT
6K
STATUS
FEEDBACK
7K
AND LINE
8K
VOLTAGE
INPUTS
9K
1K
CONTROL
POWER SUPPLY
POWER
1K1
2K1 5K1
7
4K1
7K1
2K2
HIGH FIRE
12
8K1
COMMON
13
8K2
MODULATE
15
9K1
9K2
14
LOW FIRE
10
Installation
L2
TEST
JACK
F
G
22
IGNITION
10
8 PILOT
21 PILOT/V2
9 MAIN VALVE
5
BLOWER
3 ALARM
INDICATES FEEDBACK SENSING
TO RELAY STATUS FEEDBACK
AND LINE VOLT INPUTS
FIELD WIRING
INTERNAL WIRING
M1925