7800 SERIES EC7810A, EC7820A RELAY MODULES
BURNER CONTROL
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1 REMOVE ONLY FOR TERMINAL TEST ACCESS. | M12821 |
Fig. 1 Mounting dimensions of relay module and wiring subbase in millimeters only.
SPECIFICATIONS
Table 1A. EC7810A Terminal Ratings.
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Terminal No. | Abbreviation | Description | Ratings |
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G | | Flame Sensor Ground a | |
Earth G | | Earth Grounda | |
N | | Line Voltage Common | |
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| (Neutral) |
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3 | L1 | Line Voltage Supply (L1) | |
4 | AL | Alarm (Normally Open) | 220/230/240 Vac, 1A, 10A inrush for 5000 cycles. |
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6 | RT | Limits and Burner Control | 220/230/240 Vac, 5A (maximum). |
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7 | LD2 | Airflow Switch Input | 220/230/240 Vac, 1 mA. |
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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. |
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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 | |
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17 | ES2 | Preignition Interlock Input | 220/230/240 Vac, 1 mA. |
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18 | ES1 | Low Fire Switch Input | 220/230/240 Vac, 1 mA. |
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20 | LOS | Lockout Input | 220/230/240 Vac, 1 mA. |
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21 | PV2 | Pilot Valve 2 (Intermittent) | 220/230/240 Vac, 4A at P.F.= 0.5, 20A inrush. c |
22 | SHTR | Shutter |
aSee Table 2.
b2000 VA maximum connected load to 7800 SERIES Relay Module Assembly.
cTotal 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.
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