Honeywell R7795C User Manual

5 66-2001—2
R7795A,B,C,D
DETAILED OPERATING SEQUENCE
Fig. 3—Internal schematic of the R7795A,B with intermittent pilot.
INTERRUPTED
PILOT VALVE
MAIN
FUEL VALVE
BURNER
MOTOR
IGNITION
TRANSFORMER
OPTO
ISOLATOR
BASIC DIAGRAM OF
THE R7795A
LINE VOLTAGE
ALARM
1
1
1
2
2
2
3
3
3
5
7
6
18
L1
L2
F
G
8
16
9
3
M11915
2K
ST795A
120 Vac
60 HZ
L1
(HOT)
L2
LINE VOLTAGE
AIRFLOW SWITCH
CONTROLLER
LIMIT(S)
FLAME AMPLIFIER
SOLID STATE
LOGIC CKT.
3K3
3K1
1K2
F1
S.SW
S.SW
3K
1K
1K
2K1
2K1
INTERRUPTED
PILOT VALVE
MAIN
FUEL VALVE
BURNER
MOTOR
IGNITION
TRANSFORMER
FLAME
DETECTOR
FLAME
DETECTOR
BASIC DIAGRAM OF
THE R7795B
LINE VOLTAGE
ALARM
5
7
6
18
L1
L2
F
G
G
8
16
9
3
2K
ST795A
120 Vac
60 HZ
L1
(HOT)
L2
LINE VOLTAGE
AIRFLOW SWITCH
CONTROLLER
LIMIT(S)
FLAME AMPLIFIER
SOLID STATE
LOGIC CKT.
3K3
3K1
1K2
F1
S.SW
S.SW
3K
2K1
2K1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
SELECT APPROPRIATE FLAME DETECTOR.
CONNECT TERMINAL TO EARTH GROUND.

Honeywell R7795C Specifications

General

Brand	Honeywell
Model	R7795C
Category	Control Unit
Language	English