Honeywell EC7823A Installation Instructions Manual Download Page 8

66-1086—2    G.R. Rev. 12-03 

www.honeywell.com

EC7823A;RM7823A 7800 SERIES RELAY MODULES

Automation and Control Solutions

Honeywell International Inc.

Honeywell Limited-Honeywell Limitée

1985 Douglas Drive North

35 Dynamic Drive

Golden Valley, MN  55422

Scarborough, Ontario
M1V 4Z9

General Instructions

1.

Perform all applicable tests listed in Static Checkout, 

Table 6, in the order listed. 

2.

Make sure all manual fuel shutoff valve(s) are closed.

3.

Perform only those tests designated for the specific 

EC/RM7823A model being tested. 

4.

Raise the setpoint of the operating controller to simulate 

a call for heat. 

5.

For each test, open the master switch and install the 

jumper wire(s) between the subbase wiring terminals 

listed in the Test Jumpers column.

6.

Close the master switch before observing operation. 

7.

Read the voltage between the subbase wiring terminals 

listed in the Voltmeter column.

8.

If there is no voltage or the operation is abnormal, 

check the circuits and external devices as described 

in the last column. 

9.

Check all wiring for correct connections, tight terminal 

screws, correct wire, and proper wiring techniques. 

Replace all 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 or death.

Be sure all manual fuel shutoff valves are closed.

Table 6. Static checkout.

Test 

Number

Test 

Jumpers

Voltmeter

Normal Operation

If Operation is Abnormal, 

Check the Items Listed Below

1

L2-3

Line voltage at terminal 3.

1.

Master Switch.

2.

Power connected to the master switch.

3.

Overload protection (fuse, circuit 

breaker, etc.) has not opened the power 

line.

2

8-9

Load operation without flame sighting.

Load connections to terminals 8 and 9.

3

8-10

Load operation when flame detected.

Load connections to terminals 8 and 10.

4

13-14

Load operation without flame sighting.

Load connections to terminals 13 and 14.

5

13-15

Load operation when flame detected.

Load connections to terminals 13 and 15.

FINAL

ALL

CAUTION

Equipment Damage Hazard.

Leaving jumpers in place will damage the equipment.

After completing these tests, open the master switch and remove all test jumpers from the 

subbase terminals. Remove any bypass jumpers from limits.

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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