Honeywell EC7820A manual Sec, See, Relay Module 0,730 kg unpacked KDM 0,113 kg unpacked

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

* Standby and Run can be an infinite period.

**Waiting Time is determined by the ST7800A Purge Card selected.

***Second Safety Time is Main Trial Time plus Flame Failure Response Time.

Electrical Ratings (See Tables 1A and 1B):

Voltage and Frequency: 220 to 240 Vac (+10%/-15%), 50/60 Hz (±10%).

Keyboard Display Module (Optional): 13 Vdc peak fullwave rectified (+20%/-15%).

Power Dissipation:

Relay Module: 10W maximum.

KDM: 3W maximum.

Maximum Total Connected Load: 2000 VA.

Fusing (Total Connected Load): 20A, type FRN or equivalent.

Environmental Ratings:

Ambient Temperatures:

Operating: -40°C to 60°C (-40°F to 140°F).

Storage: -40°C to 66°C. (-40°F to 150°F).

Humidity: 85% RH continuous, noncondensing.

Vibration: 0.5G environment.

Dimensions:

See Fig. 1 and 2.

Weight:

Relay Module: 0,730 kg unpacked.

KDM: 0,113 kg unpacked.

IMPORTANT

Flame Detection System available for use with EC7810/EC7820. Select your plug-in Flame Signal Amplifier and applicable Flame Detector from Table 4.

Approvals:

This product complies with the following European directives: Gas Appliance Directive (90/269/EEG).

Low Voltage Directive (73/23/EEG). EMC Directive (89/336/EEG). GASTEC (CE-63AP3070/1). Factory Mutual: J.I.0Y0A9.AF.

Oil Approvals:

EC7810A1027: DIN-5F104/96.

EC7820A1026: DIN-5F105/96.

EN298: ÒAutomatic gas burner systems for gas burners

and gas burning appliances with or without fans.Ó

Please note the following to comply with EN60730 for remote mounting of the KDM and/or remote reset. It is necessary to provide electrical separation using insulation at least equivalent to double or reinforced insulation. Accomplish this by either:

∙Optically isolating the communication and/or remote reset lines from the control cabinet or

∙Providing physical separation from the communication and/or remote reset lines using electrical conduit and a remote display cover assembly (part no. 204718A) or other suitable enclosure that meets IP40 class of protection.

Mounting:

Q7800A Wiring Subbase for Panel Mount: To meet EN60730 requirements, mount the relay module in a secured panel which meets IP40 class of protection.

Required Components:

Plug-in Flame Signal Amplifier: See Table 2.

ST7800A Plug-in Purge Timer Cards: Selectable from two seconds to 30 minutes.

Q7800A Wiring Subbase.

Accessories:

Keyboard Display Modules (KDM) (Optional): S7800A1001 English language. S7800A1035 French language. S7800A1043 German language. S7800A1050 Italian language. S7800A1068 Spanish language. S7800A1118 Katakana (Japanese) language. S7800A1126 Portuguese language. S7800B1009 Chinese language.

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