Honeywell EC7820A user manual

Summary of the content on the page No. 1

7800 SERIES
EC7810A, EC7820A Relay Modules
SPECIFICATION DATA
FEATURES
¥ Safety features:
Ñ Interlock check.
Ñ Dynamic AMPLI-CHECKª
Ñ Closed loop logic test.
Ñ Dynamic input check.
Ñ Dynamic safety relay test.
Ñ Dynamic self-check logic.
Ñ Expanded safe-start check.
Ñ Internal hardware status monitoring.
Ñ Low Fire Start Switch test.
Ñ Tamper resistant timing and logic.
¥ Ignition attempts: 1 or 5. Selectable by model number.
¥ Access for external electrical voltage checks.
¥ Application flexibi

Summary of the content on the page No. 2

7800 SERIES EC7810A, EC7820A RELAY MODULES BURNER CONTROL 1 127 127 133 REMOVE ONLY FOR TERMINAL TEST ACCESS. 1 M12821 Fig. 1 Mounting dimensions of relay module and wiring subbase in millimeters only. SPECIFICATIONS Table 1A. EC7810A Terminal Ratings. Terminal No. Abbreviation Description Ratings a G Flame Sensor Ground a Earth G Earth Ground N Line Voltage Common (Neutral) b 3 L1 Line Voltage Supply (L1) 220-240 Vac (+10%/-15%), 50/60 Hz (– 10%). 4 AL Alarm (Normally Open) 220/230/

Summary of the content on the page No. 3

7800 SERIES EC7810A, EC7820A RELAY MODULES Table 1B. EC7820A Terminal Ratings. Terminal No. Abbreviation Description Ratings a G Flame Sensor Ground a Earth G Earth Ground N Line Voltage Common (Neutral) 3 AL Alarm (Normally Open) 220/230/240 Vac, 1A, 10A inrush for 5000 cycles. 4 FAN Burner/Blower Motor 220/230/240 Vac, 4A at P.F. = 0.5, 20A inrush. b 5 L1 Line Voltage Supply (L1) 220-240 Vac (+10%/-15%), 50/60 Hz (– 10%). 6 RT Limits and Burner Control 220/230/240 Vac, 5A (maximum)

Summary of the content on the page No. 4

7800 SERIES EC7810A, EC7820A RELAY MODULES Table 3. Sequence Timing for Normal Operation. First Main Purge or Safety Pilot Trial Main Ignition Device Initiate Standby Waiting Preignition Time Stab. Time*** Stab. Run Attempts EC7810A1027 2 sec * ** 3 sec 5 or 10 sec 5 sec 5 or 8 sec 5 sec * 1 EC7810A1035 2 sec * ** 3 sec 5 or 10 sec 5 sec 5 or 8 sec 5 sec * 5 EC7820A1026 2 sec * ** 3 sec 5 or 10 sec 5 sec 5 or 8 sec 5 sec * 1 EC7820A1034 2 sec * ** 3 sec 5 or 10 sec 5 sec 5 or 8 sec 5 sec * 5 *

Summary of the content on the page No. 5

7800 SERIES EC7810A, EC7820A RELAY MODULES Miscellaneous: Communications: S7820A1007 Remote Reset Module. Q7700B1004 Network Interface Unit with universal 100 to 203541 Data ControlBus Connector, 5-wire. 250 Vac, 50/60 Hz external power supply, external 203765 Remote Display Mounting Bracket. modem required. 221729 Relay Module Dust Cover. QS7800A1001 ControlBus Module, standard. 204718A Keyboard Display Module Cover, NEMA 4, clear. QS7800B1000 ControlBus Module, multidrop. 204718B Keyboard Disp

Summary of the content on the page No. 6

7800 SERIES EC7810A, EC7820A RELAY MODULES 66-2040 6

Summary of the content on the page No. 7

7800 SERIES EC7810A, EC7820A RELAY MODULES 7 66-2040

Summary of the content on the page No. 8

7800 SERIES EC7810A, EC7820A RELAY MODULES Home and Building Control Home and Building Control Honeywell Asia Pacific Inc. Honeywell Inc. Honeywell Limited-Honeywell Limitée Room 3213-3225 Honeywell Plaza 155 Gordon Baker Road Sun Hung Kai Centre P.O. Box 524 North York, Ontario No. 30 Harbour Road Minneapolis MN 55408-0524 M2H 3N7 Wanchai Hong Kong Honeywell Latin American Region Honeywell Europe S.A. 480 Sawgrass Corporate Parkway 3 Avenue du Bourget Suite 200 1140 Brussels Sunrise FL 33325 Be