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Honeywell EC7823A, Installation Instructions Manual, Page: 6 / 8

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Honeywell EC7823A Installation Instructions Manual Download Page 6

EC7823A;RM7823A 7800 SERIES RELAY MODULES

66-1086—2

6

Mounting EC/RM7823A Relay Module

1.

Mount the EC/RM7823A on the Q7800 Subbase 

vertically, or mount horizontally with the knife blade 

terminals pointing down. When mounted on the Q7800A 

Wiring Subbase, the EC/RM7823A must be in an 

electrical enclosure. 

2.

When mounting in an electrical enclosure, provide 

adequate clearance for servicing, installation and 

removal of the EC/RM7823A, keyboard display module, 

flame amplifier, flame amplifier signal voltage probes, 

electrical signal voltage probes, and electrical 

connections. 

a. Allow an additional two inches below the 

EC/RM7823A for the flame amplifier mounting. 

b. Allow an optional three inches minimum to both 

sides of the EC/RM7823A for electrical signal 

voltage probes. 

3.

Make sure no subbase wiring is projecting beyond the 

terminal blocks. Tuck in wiring against the back of the 

subbase so it does not interfere with the knife blade 

terminals or bifurcated contacts. 

IMPORTANT

The EC/RM7823A must be installed with a plug-in 

motion rather than a hinge action.

4.

Mount the EC/RM7823A by aligning the four L shaped 

corner guides and knife blade terminals with the 

bifurcated contacts on the wiring subbase and securely 

tightening the two screws without deforming the plastic. 

Mounting Other System Components (Fig. 3)

Some other system components are shown in Fig. 3. Mount 

other required and optional system components by referring to 

the instructions provided with each component.

Fig. 3. EC/RM7823A Relay Module, exploded view.

HONEYWELL

POWER

FLAME

RESET

DUST

COVER

WIRING 

SUBBASE

CAPTIVE 

MOUNTING 

SCREW

RELAY 

MODULE

SEQUENCE 

STATUS 

LED PANEL

RESET 

BUTTON

FLAME

AMPLIFIER

BURNER CONTROL

M17823 

ALARM

Summary of Contents for EC7823A

Page 1: ...Ratings see Table 3 Voltage and Frequency EC7823A 220 240 Vac 10 15 50 60 Hz 10 RM7823A 120 Vac 10 15 50 60 Hz 10 Power Dissipation 10W maximum Maximum Total Connected Load 2000 VA Fusing Total Connected Load 15A type SC Fast Blow or equivalent Environmental Ratings Ambient Temperature Operating 40 F to 140 F 40 C to 60 C Storage 40 F to 150 F 40 C to 66 C Humidity 85 relative humidity continuous ...

Page 2: ...ired to correct this interference 9 This digital apparatus does not exceed the Class B limits for radio noise for digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Location Humidity Install the relay module where the relative humidity never reaches the saturation point The relay module is designed to operate in a maximum 85 relative humidi...

Page 3: ...ures for given application TTW60C THW75C THHN90C Ground Type Recommended Practice Earth ground subbase and relay module 1 Use to provide a connection between the subbase and the control panel of the equipment Earth ground must be capable of conducting enough current to blow the 15A fast acting fuse or breaker in the event of an internal short circuit 2 Use wide straps or brackets to provide minimu...

Page 4: ... Wiring Check 1 Check the power supply circuit The voltage and frequency tolerance must match those of the EC RM7823A A separate power supply circuit may be required for the EC RM7823A Add the required disconnect means and overload protection 2 Check all wiring circuits and complete the Static Checkout in Table 5 before installing the EC RM7823A on the subbase 3 Install all electrical connectors 4...

Page 5: ... 10 9KA2 N C 1A Pilot Duty at 120 Vac F 11 Flame Sensor 60 to 220 Vac current limited 12 Unused 13 9KB Common 14 9KB1 N C 1A Pilot Duty at 120 Vac also rated for 5V control circuits 15 9KB2 N O 1A Pilot Duty at 120 Vac also rated for 5V control circuits 16 21 Unused 22 Shutter 120 Vac 0 5A Terminal Number Description Ratingsa G Flame Sensor Grounda Earth G Earth Grounda L2 N Line Voltage Common 3 ...

Page 6: ... signal voltage probes 3 Make sure no subbase wiring is projecting beyond the terminal blocks Tuck in wiring against the back of the subbase so it does not interfere with the knife blade terminals or bifurcated contacts IMPORTANT The EC RM7823A must be installed with a plug in motion rather than a hinge action 4 Mount the EC RM7823A by aligning the four L shaped corner guides and knife blade termi...

Page 7: ...use serious injury death or equipment damage 1 Close all manual fuel shutoff valve s before starting these tests 2 Use extreme care while testing the system Line voltage is present on most terminal connections when power is on 3 Open the master switch before installing or removing a jumper on the subbase 4 Before continuing to the next test be sure to remove test jumper s used in the previous test...

Page 8: ...damaged or incorrectly sized wires and tighten any loose terminal screws 10 Replace faulty controllers limits interlocks actuators valves transformers motors and other devices as required 11 Make sure normal operation is obtained for each required test before continuing the checkout 12 After completing each test be sure to remove the test jumper s WARNING Explosion hazard Can cause serious injury ...

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