Honeywell 7800 SERIES EC7895A Product Data page 3

Model:
EC7895
Terminal No.
G
Earth G
L2 (N)
3
4
5
6
7
8
9
10
F(11)
12
13
14
15
16
17
18
19
20
21
22
1
Range of allowable operating frequency 45 through 66 Hz.
2
The EC7895 must have an earth ground providing a connection between the subbase and the control panel or the equipment.
The earth ground wire must be capable of conducting the current to blow the 20A fuse (or breaker) in event of an internal short
circuit. The RM7895 needs a low impedance ground connection to the equipment frame which, in turn, needs a low
impedance connection to earth ground. For a ground path to be low impedance at RF frequencies, the connection must be
made with minimum length conductors that have maximum surface areas. Wide straps or brackets rather than leadwires are
preferred. Be careful to verify that mechanically tightened joints along the ground path, such as pipe or conduit threads or
surfaces held together with fasteners, are free of nonconductive coatings and are protected against mating surface corrosion.
3
2000 VA maximum connected load to EC7895 Assembly.
4
Total load current excluding burner/boiler motor and firing rate outputs cannot exceed 5A, 25A inrush.
Table 1B. EC7895A Terminal Ratings.
Description
Flame Sensor Ground
2
Earth Ground
Line Voltage Common
Alarm
Burner Motor
Line Voltage Supply (L1)
Burner Controller and Limits
Airflow Interlock
Pilot Valve/Ignition
Main Fuel Valve
Ignition
Flame Sensor
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Shutter
3
7800 SERIES EC7895A, RM7895A RELAY MODULE
Electrical Ratings, see Table 1B:
Voltage and Frequency: 200 Vac (+10/-15%), 50 or 60 Hz
1
(+/- 10%).
Power Dissipation: EC7895: 10W maximum.
Maximum Total Connected Load: 2000 VA.
Fusing Total Connected Load: 20A maximum, type FRN or
equivalent.
200 Vac, 1A pilot duty.
200 Vac, 4A at pF = 0.5, 20A inrush
200 Vac (+10/-15%), 50 or 60 Hz (+/- 10%).
200 Vac, 1 mA.
200 Vac, 9A.
200 Vac, 4A at pF = 0.5, 20A inrush
200 Vac, 4A at pF = 0.5, 20A inrush
200 Vac, 4A at pF = 0.5, 20A inrush
60 to 220 Vac, current limited.
200 Vac, 0.5A
Ratings
4
3,4
4
4
4
65-0205