Honeywell EC7820A ユーザーズマニュアル
2
7800 SERIES EC7810A, EC7820A RELAY MODULES
66-2040
Fig. 1 Mounting dimensions of relay module and wiring subbase in millimeters only.
SPECIFICATIONS
Table 1A. EC7810A Terminal Ratings.
127
127
BURNER CONTROL
133
M12821
1
REMOVE ONLY FOR TERMINAL TEST ACCESS.
1
a
See Table 2.
b
2000 VA maximum connected load to 7800 SERIES Relay Module Assembly.
c
Total load current, excluding burner/boiler motor and firing rate outputs cannot exceed 5A, 25A inrush.
d
Can also be 24 Vac, 3A at PF = 0.5.
e
220-240 Vac to 120 Vac, 10 VA (minimum) stepdown transformer (not provided) required to drive shutter.
Terminal No.
Abbreviation
Description
Ratings
G
Flame Sensor Ground
a
Earth G
Earth Ground
a
N
Line Voltage Common
(Neutral)
(Neutral)
3
L1
Line Voltage Supply (L1)
220-240 Vac (+10%/-15%), 50/60 Hz (
±
10%).
b
4
AL
Alarm (Normally Open)
220/230/240 Vac, 1A, 10A inrush for 5000 cycles.
6
RT
Limits and Burner Control
220/230/240 Vac, 5A (maximum).
7
LD2
Airflow Switch Input
220/230/240 Vac, 1 mA.
8
PV1
Pilot Valve 1 (interrupted)
220/230/240 Vac, 4A at PF = 0.5, 20A inrush.
c
9
MV
Main Fuel Valve
220/230/240 Vac, 4A at PF = 0.5, 20A inrush.
c
10
IGN
Ignition
220/230/240 Vac, 4A at PF = 0.2.
c
F(11)
Flame Signal
136 to 220 Vac, current limited.
13
COM
Firing Rate Common
220/230/240 Vac, 4A at PF = 0.5.
d
14
MOD
Firing Rate Modulate
220/230/240 Vac, 4A at PF = 0.5.
d
16
Control Voltage
220-240 Vac (+10%/-15%).
17
ES2
Preignition Interlock Input
220/230/240 Vac, 1 mA.
18
ES1
Low Fire Switch Input
220/230/240 Vac, 1 mA.
20
LOS
Lockout Input
220/230/240 Vac, 1 mA.
21
PV2
Pilot Valve 2 (Intermittent)
220/230/240 Vac, 4A at P.F.= 0.5, 20A inrush.
c
22
SHTR
Shutter
220-240 Vac, 0.25A.
e