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7800 SERIES EC7810A, EC7820A RELAY MODULES
66-2040
Table 3. Sequence Timing for Normal Operation.
* 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.
Device Initiate Standby
Purge or
Waiting Preignition
First
Safety
Time
Pilot
Stab.
Main
Trial
Time***
Main
Stab. Run
Ignition
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
Oil Approvals:
EC7810A1027: DIN-5F104/96.
EC7820A1026: DIN-5F105/96.
EN298: “Automatic gas burner systems for gas burners
and gas burning appliances with or without fans.”
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.