What is the FFRT (Flame Failure Response Time) for Ra890E models with 120V 60Hz configuration?

For Ra890E models with 120V 60Hz configuration and 30 second safety switch timing, the FFRT is 0.8 seconds. The specific model number is Ra890F1338 with RM7890A1031 amplifier. (Page 4)

Which models use the RA890F detector?

Several models use the RA890F detector including R177A, R180A, R180B, R187A, R190B, Ra190B, and R887A. All of these require the Q270A Subbase with the RA890F detector.

What terminal configurations does the R190B model use?

The R190B model has the same terminal configuration as R180B: power at 1-2, main valve limit at 5, pilot valve motor at 3, ignition at 4, controller at R/W/B, and detector at F/G. Remove the Series 10 Controller and rewire before installation.

Is there a 'proof of flame' terminal on the RM7890A1015?

No, the RM7890A1015 does not have a 'proof of flame' terminal, unlike the RA890E or RA890F which have this feature at terminal 5. This is an important difference when replacing older models.

Do I need to rewire when replacing a Series 10 Controller with RM7890A1015?

Yes, you must remove the Series 10 Controller and rewire when upgrading to RM7890A1015. This rewiring requirement is noted for multiple device models including R180A, R180B, and R187A. (Page 3)

Is rewiring required for R887A when converting to RM7890A1015?

Yes, R887A requires rewiring when upgrading to the RM7890A1015 controller. Additionally, you must use the Q7800F1004 Subbase with this configuration. (Page 4)

What subbase is required when using RA890F?

When using RA890F, you need the Q270A Subbase. This applies to various device configurations throughout the manual. (Page 3)

What does it mean when a device requires JR2 to be clipped?

JR2 must be clipped when using a 3 second amplifier instead of a different timing option. This is a configuration requirement noted in the amplifier selection process. (Page 4)

What is the difference between RA890F and Ra890E regarding flame detection?

RA890F is the same as RA890E except it does not have a 'proof of flame' terminal (terminal 5 on RA890E). This is an important distinction when selecting replacement controls. (Page 3)

What are the terminal designations for R180A power and detection?

For R180A, power connections are terminals 1-2, while controller uses R, W, B terminals and detector uses F, G terminals. Limit for main valve uses terminal 4. (Page 3)

What voltage and frequency options are available for the R7847A1025 amplifier?

The R7847A1025 amplifier is available in 120V/60Hz, 208V/60Hz, 240V/60Hz, 120V/50Hz, 220V/50Hz, and 240V/50Hz configurations. Each configuration has different model numbers and specifications. (Page 4)

Which models use the same wiring as R180B?

R190B and Ra190B use the same wiring configuration as R180B. You can refer to the R180B wiring diagram for these models. (Page 3)

Honeywell RM7895A1014 Flame Safeguard — Manual, FAQ & Troubleshooting

Name: Honeywell RM7895A1014 Flame Safeguard
Brand: Honeywell

Page 1

Honeywell Primary Control Cross Reference 95-6855-15 Page 1

R177, R180, R187, R190B, Ra190B, R190C, R887, R890B

Ra890B, R890C, Ra890C, Ra890Xb,Xc, Ra890D

Pages 2–4

Ra890E

Pages 5–7

Ra890F

Pages 8–9

Ra890G

Page 10

Ra890H,J,K

Page 11

R485

Pages 12–13

R4075

Pages 14–15

R4138

Pages 16–17

R4795

Pages 18–19

R7023

Page 20

R7795

Pages 21–24 7800 SERIES Primary Controls Pages 25–26 FIREYETM TFM1,2,3 and UVM1,2,3,5 Pages 27–28

Mii

Pages 29–35 MicroM

Page 3

1 95-6855—15 Honeywell Primary Control Cross Reference

Table 1—Cross Reference

Device To Be Replaced Current Replacement 7800 Series Replacement b c Wiring Designation and Terminal Number Comments

R177A

a RA890F

Rm7890A1015

power—1,2 limit—1-5 motor—3 ignition—4 controller—R,W,B detector—F,G Remove Series 10 Controller and rewire. Same as RA890F except does not have “proof of flame” terminal (terminal 5 on RA890E,F). Requires Q270A Subbase with RA890F. Requires Q7800F1004 Subbase with RM7890A1015.

R180A

a RA890F

Rm7890A1015

power—1,2 jumper—1-3 limit, main valve—4 controller—R,W,B detector—F,G Continuous pilot applications only. Remove Series 10 Controller and rewire. Requires Q270A Subbase with RA 890F. Requires Q7800F1004 Subbase with RM7890A1015.

R180B

a RA890F

Rm7890A1015

power —1,2 limit, main valve—5 motor, pilot valve—3 ignition—4 controller—R,W,B detector—F,G Functionality same as RA890F. Remove Series 10 Controller and rewire. Requires Q270A Subbase with RA890F. Requires Q7800F1004 Subbase with RM7890A1015.

R187A

a RA890F

Rm7890A10105

power—1,2 limit—1-5 motor—3 ignition—4 controller—R,W,B detector—F,G Remove Series 10 Controller and rewire. Requires Q270A Subbase with RA890F. Requires Q7800F1004 Subbase with RM7890A1015

R190B,

Ra190B

a RA890F

Rm7890A1015

See R180B Remove Series 10 Controller and rewire. Requires Q270A Subbase with RA890F. Requires Q7800F1004 Subbase with RM7890A1015.

R190C

None

Rm7838A,B

Rm7890B1014

See Modernization Wiring Information section Used in W124 and ID051 panels. See Modernization Wiring Information section.

R887A

a RA890F

Rm7890A1015

power—1,2 limit—1-5 motor—3 ignition—4 controller—T,T detector—F,G Rewire. Requires Q270A Subbase with RA89OF. Requires Q7800F1004 Subbase with RM7890A1015.

R890B,

Ra890B

a RA890F

Rm7890A1015

power—1,2 limit—1 motor, pilot valve—3 ignition—4 main valve—5 controller—6 jumper—T,T detector—F,G Requires Q7800F1004 Subbase with RM7890A1015.

R890C,

Ra890C

Ra890F

Rm7890A1015

Same as R890B,

Ra890B

Requires Q7800Fl004 Subbase with RM7890A1015.

Ra890Xb

Ra890F

Rm7890A1015

Same as R890B Requires Q7800F1004 Subbase with RM7890A1015.

Ra890Xc

Ra890B

Ra890D

None

Rm7840M1017

Same as R890B, RA890B except controller always on terminal 6 and LF switch to T,T Requires Q520A Subbase and R7247A Amplifier Requires rewire with Q7800A1005 Subbase and R7847A1009 or R7847B1007 Amplifier with

Rm7840M1017.

Footnotes:

a Refer to Primary Cross-Reference section to select proper voltage, frequency, and timings. b Select R7847A1025, 1033 or R7847B1023, 1031 Amplifier. JR2 must be clipped when using 3 second amplifier. c See Modernization Wiring Information section.

Page 4

Page 5

Page 6

95-6855—15 4 Honeywell Primary Control Cross Reference

Footnotes:

a EC7890 operating voltage is 187 Vac to 264 Vac 50/60 Hz b Suggested Replacement Device has a 10 Second Safety Switch Time c Select Wiring Subbase Q7800A1005 for Panel Mounting - Wiring conversion required Q7800B1003 for Burner/Wall Mounting - Wiring conversion required Q7800F1004 - Mounts to existing wiring subbase d Alternate Replacement RM7890B1014. RM7890B has a shutter output terminal. e Alternate Replacement EC7890B1010. EC7890B has a shutter output terminal. A 240 to 120 10va minimum transformer will be needed if detector system changed to shutter type detector. f For Sensor Leadwire runs greater than 50feet select appropriate amplifier. R7847A1075 for 0.8 Flame Failure Response R7847A1082 for 3.0 Flame Failure Response g 7800 Series has only a line voltage output alarm. h RM7890A1056 or RM7890B1048 can also replace the RM7890A1015. A jumper between terminals 3 and 20 will need to be added.

Table 2—Ra890E Cross Reference

Device to be Replaced

Ra890E

Replacement Function of Device to be replaced Comments Current RA890F 7800 Series b c h Amplifier f Voltage (Vac) Frequency (Hz) Safety Switch Timing (Secs) FFRT (sec) Alarm Contacts g 1728

Ra809F1387

e EC7890A1011

R7847A1033

240 50/60 15 2-4 Spdt 1736 None a e EC7890A1011

R7847A1025

208 50/60 30 0.8 Spdt 1744

Ra890F1387

e EC7890A1011

R7847A1033

240 50 15 2-4 Spdt 1751 None e EC7890A1011

R7847A1025

240 50/60 30 0.8 Spdt 1769 None e EC7890A1011

R7847A1033

220 50 15 2-4 Spdt 1777

Ra890F1288

d RM7890A1015

R7847A1033

120 50 15 2-4 Spdt 1785 None e EC7890A1011

R7847A1033

220 50 15 2-4

N.O.

1793

Ra890F1304

e EC7890A1011

R7847A1025

220 50 15 0.8

N.O.

1801

Ra890F1387

e EC7890A1011

R7847A1033

240 50 15 2-4 1819 None e EC7890A1011

R7847A1033

220 50 15 2-4 1827

Ra890F1288

d RM7890A1015

R7847A1033

120 50 15 2-4 1835 None e EC7890A1011

R7847A1033

220 50 30 2-4 1843 None e EC7890A1011

R7847A1033

240 50 30 2-4 1850 None e EC7890A1011

R7847A1025

240 50/60 30 0.8 Fungus-Proof 1868 None a e EC7890A1011

R7847A1025

208 50/60 30 0.8 Fungus-Proof 1876

Ra890F1304

e EC7890A1011

R7847A1025

220 50 15 0.8 Spdt 1884 None e EC7890A1011

R7847A1025

240 50/60 30 0.8 Spdt 1892 None 100 50/60 15 0.8 Special for Yamatake (Japan) 1900 None a e EC7890A1011

R7847A1025

200 50/60 15 0.8 Special for Yamatake (Japan) 1918

Ra890F1270

d RM7890A1015

R7847A1025

120 50/60 15 0.8 1926

Ra890F1288

d RM7890A1015

R7847A1033

120 50/60 15 2-4 1934

Ra890F1270

d RM7890A1015

R7847A1025

120 50/60 15 0.8 Spdt 1942

Ra890F1288

d RM7890A1015

R7847A1033

120 50/60 15 2-4 Spdt 1959 None 100 50/60 15 2-4 Spdt Special for Yamatake (Japan) 1967 None e EC7890A1011

R7847A1033

220 50 30 2-4 1975 None a e EC7890A1011

R7847A1033

208 60 15 2-4 Spdt (continued)

Page 7

Page 8

95-6855—15 6 Honeywell Primary Control Cross Reference

Table 3—Ra890F Cross Reference

Device to be Replaced

Ra890F

Replacement Function of Device to be replaced Comments Current

Ra890F

7800 Series b c h Amplifier f Voltage (Vac) Frequency (Hz) Safety Switch Timing (Secs)

Ffrt

(sec) Alarm Contacts g 1361

None

e EC7890A1011

R7847A1033

240 50/60 30 3 Spdt 1379

None

e EC7890A1011

R7847A1025

240 50/60 15 0.8 Spdt 1387

Ra890F1387

e EC7890A1011

R7847A1033

240 50/60 15 3 Spdt 1395

None

e EC7890A1011

R7847A1025

240 50/60 30 0.8 1403

None

e EC7890A1011

R7847A1033

240 50/60 30 3 1411

None

100 50/60 15 3 Spdt Special for Yamatake (Japan) 1429

None

e EC7890A1011

R7847A1033

220 50/60 15 3 Spdt 1437

Ra890F1270

d RM7890A1015

R7847A1025

120 50/60 15 0.8 Spdt 1445

Ra890F1387

e EC7890A1011

R7847A1033

240 50/60 15 3 Spdt 1452

None

a e EC7890A1011

R7847A1025

208 50/60 15 0.8 Spdt 1460

None

100 50/60 15 0.8 Spdt 1478

Ra890F1478

d RM7890A1015

R7847A1025

120 50/60 15 0.8 Spdt Fast Response Safe Start Check 1486

Ra890F1338

Rm7890A1031

R7847A1025

120 50/60 30 0.8 1494

Ra890F1346

Rm7890A1031

R7847A1033

120 50/60 30 3 1502

Ra890F1270

d RM7890A1015

R7847A1025

120 50/60 15 0.8 1510

Ra890F1288

d RM7890A1015

R7847A1033

120 50/60 15 3 1528

Ra890F1270

d RM7890A1015

R7847A1025

120 50/60 15 0.8 Spdt 1536

None

e EC7890A1011

R7847A1025

240 50/60 15 0.8 1544

Ra890F1387

e EC7890A1011

R7847A1033

240 50/60 15 3 1551

Ra890F1338

Rm7890A1031

R7847A1025

120 50/60 30 0.8 Spdt 1569

Ra890F1346

Rm7890A1031

R7847A1033

120 50/60 30 3 Spdt 1577

None

e EC7890A1011

R7847A1025

240 50/60 30 0.8 Spdt 1585

None

e EC7890A1011

R7847A1033

240 50/60 30 3 Spdt 1593

None

e EC7890A1011

R7847A1025

240 50/60 15 0.8 Spdt 1601

None

e EC7890A1011

R7847A1025

240 50/60 30 0.8 1619

None

e EC7890A1011

R7847A1033

240 50/60 30 3 1627

Ra890F1478

d RM7890A1015

R7847A1025

120 50/60 15 0.8 Fast Response Safe Start Check 1635

None

d RM7890A1015

R7847A1025

120 50/60 15 0.8 Spdt Tamper Reistant Relay Cover 1643

None

d RM7890A1015

R7847A1033

120 50/60 15 3 Tamper Reistant Relay Cover 1650

None

e EC7890A1011

R7847A1025

220 50/60 15 0.8 Spdt 15 second Delayed Pull in 1668

None

e EC7890A1011

R7847A1025

220 50/60 10 0.8 Spdt 1676

None

d RM7890A1015

R7847A1025

120 50/60 15 0.8 Spdt Approved -40F (-40C) 1684

None

d RM7890A1015

R7847A1025

120 50/60 10 0.8 Spdt 1692

Ra890F1692

e EC7890A1011

R7847A1025

220 50/60 15 0.8 Spdt Honeywell - Mexico Only 1700

Ra890F1700

Rm7890A1031

R7847A1025

120 50/60 30 0.8 Spdt Honeywell - Mexico Only 1718

Ra890F1718

Rm7890A1031

R7847A1033

120 50/60 30 3 Spdt Honeywell - Mexico Only (continued)

Page 9

Page 10

Page 11

Page 12

Page 13

11 95-6855—15 Honeywell Primary Control Cross Reference

Table 6—R485 Primary Relay Cross Reference

Device to be Replaced Replacement Function of Device to be replaced Comments 7800 Series d Amplifier Wiring Sub base Voltage (Vac) Frequency (Hz) Solid State

Ffrt

(sec) Flame Detector Type

R485A1001

Rm7885A1015

R7847A1033

b Q7800B1003 120 50/60 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

Mounted on Q270A Base

R485A1019

Ec7885A1011

R7847A1033

b Q7800B1003 240 50/60 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

Mounted on Q270A Base

R485A1027

a

Ec7885A1011

R7847A1033

b Q7800B1003 208 50/60 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

Mounted on Q270A Base

R485A1035

Rm7885A1015

R7847A1033

b Q7800B1003 120 50 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

International Model

R485A1043

Rm7885A1015

R7847A1025

b Q7800B1003 120 50/60 No 0.8 Flame Rod, Rectifying Photocell c International Model

R485A1050

Ec7885A1011

R7847A1025

b Q7800B1003 240 50 No 0.8 Flame Rod, Rectifying Photocell c International Model

R485A1068

Rm7885A1015

R7847A1033

b Q7800B1003 120 60 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

Fungus Proof

R485A1076

Ec7885A1011

R7847A1033

b Q7800B1003 240 50/60 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

Fungus Proof

R485B1000

Rm7885A1015

R7847A1033

b Q7800B1003 120 50/60 Yes 3.0 Flame Rod, Rectifying Photocell, c

C7012A, C

Mounted on Q270A Base

R485B1018

Ec7885A1011

R7847A1033

b Q7800B1003 240 50/60 Yes 3.0 Flame Rod, Rectifying Photocell, c

C7012A, C

Mounted on Q270A Base

R485B1026

a

Ec7885A1011

R7847A1033

b Q7800B1003 208 50/60 Yes 3.0 Flame Rod, Rectifying Photocell, c

C7012A, C

Mounted on Q270A Base

R485B1034

Ec7885A1011

R7847A1025

b Q7800B1003 240 50/60 Yes 0.8 Flame Rod, Rectifying Photocell c Mounted on Q270A Base

R485B1042

Rm7885A1015

R7847A1025

b Q7800B1003 120 50/60 Yes 0.8 Flame Rod, Rectifying Photocell c Mounted on Q270A Base

R485X1005

Ec7885A1011

R7847A1033

b Q7800B1003 240 50 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

International Model

R485X1013

a

Ec7885A1011

R7847A1033

b Q7800B1003 208 50 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

International Model

R485X1021

Ec7885A1011

R7847A1033

b Q7800B1003 220 50 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

International Model

R485X1039

Rm7885A1015

R7847A1033

b Q7800B1003 120 50 No 2-4 Flame Rod, Rectifying Photocell, c

C7012A, C

International Model

R485X1047

Ec7885A1011

R7847A1025

b Q7800B1003 220 50 No 0.8 Flame Rod, Rectifying Photocell c International Model

R485X1054

Ec7885A1011

R7847A1033

b Q7800B1003 220 50/60 Yes 3.0 Flame Rod, Rectifying Photocell, c

C7012A, C

Mounted on Q270A Base

R485X1062

Ec7885A1011

R7847A1025

b Q7800B1003 220 50/60 Yes 0.8 Flame Rod, Rectifying Photocell c Mounted on Q270A Base

Footnotes:

a Replacement EC7885 operating voltage is 187 Vac to 264 Vac, 50/60Hz b Use Q7800A1005 for Panel Mount Applications c If Rectifying Photocell needs replacement - see C7962 with appropriate R7851B amplifier d Suggested replacement is a semi-automatic functioning device. If R485 was operated automatically select a similar functioning RM/EC like a RM7890 for example.

Page 14

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Page 16

Page 17

Page 18

Page 19

Page 20

95-6855—15 18 Honeywell Primary Control Cross Reference

Table 10—Honeywell R7023 Cross Reference

Device to be Replaced Replacement Function of Device to be replaced Comments 7800 Series Amplifier Wiring Subbase Voltage (Vac) Frequency (Hz) Relay Switching Solid State

Ffrt

(sec) Flame Detector Type c d

R7023A1005

Rm7823A1016

R7847A1033

b Q7800B1003 120 50/60 (2)spdt no 2-4 Flame rod, rectifying photocell, C7012A, C International Model

R7023A1013

a

Ec7823A1004

R7847A1033

b Q7800B1003 208 50/60 (2)spdt no 2-4 Flame rod, rectifying photocell, C7012A, C

R7023A1021

Ec7823A1004

R7847A1033

b Q7800B1003 220 50 (2)spdt no 2-4 Flame rod, rectifying photocell, C7012A, C

R7023A1039

Ec7823A1004

R7847A1033

b Q7800B1003 240 50/60 (2)spdt no 2-4 Flame rod, rectifying photocell, C7012A, C

R7023A1047

Rm7823A1016

R7847A1025

b Q7800B1003 120 50/60 (2)spdt no 0.8 Flame rod, rectifying photocell

R7023A1054

a

Ec7823A1004

R7847A1025

b Q7800B1003 208 50/60 (2)spdt no 0.8 Flame rod, rectifying photocell

R7023A1062

Ec7823A1004

R7847A1025

b Q7800B1003 220 50 (2)spdt no 0.8 Flame rod, rectifying photocell

R7023A1070

Ec7823A1004

R7847A1025

b Q7800B1003 240 50/60 (2)spdt no 0.8 Flame rod, rectifying photocell International Model

R7023B1003

Rm7823A1016

R7847A1033

b Q7800B1003 120 50/60 (2)spdt yes 3 Flame rod, rectifying photocell, C7012A, C

R7023B1011

Ec7823A1004

R7847A1033

b Q7800B1003 240 50/60 (2)spdt yes 3 Flame rod, rectifying photocell, C7012A, C

R7023B1029

a

Ec7823A1004

R7847A1033

b Q7800B1003 208 50/60 (2)spdt yes 3 Flame rod, rectifying photocell, C7012A, C

R7023B1037

Ec7823A1004

R7847A1025

b Q7800B1003 240 50/60 (2)spdt yes 0.8 Flame rod, rectifying photocell

R7023B1045

Rm7823A1016

R7847A1025

b Q7800B1003 120 50/60 (2)spdt yes 0.8 Flame rod, rectifying photocell

R7023B1052

Ec7823A1004

R7847A1033

b Q7800B1003 220 50/60 (2)spdt yes 3 Flame rod, rectifying photocell, C7012A, C International Model

R7023B1060

Ec7823A1004

R7847A1025

b Q7800B1003 220 50/60 (2)spdt yes 0.8 Flame rod, rectifying photocell International Model

R7023C1001

Rm7823A1016

R7849A1023

b Q7800B1003 120 50/60 (1)spdt yes 3

Uv - C7027, C7035,

C7044

R7023C1019

Rm7823A1016

R7849A1015

b Q7800B1003 120 50/60 (1)spdt yes 0.8

Uv - C7027, C7035,

C7044

R7023C1027

Ec7823A1004

R7849A1015

b Q7800B1003 220 50/60 (1)spdt yes 0.8

Uv - C7027, C7035,

C7044

International Model

R7023C1035

Ec7823A1004

R7849A1023

b Q7800B1003 220 50/60 (1)spdt yes 3

Uv - C7027, C7035,

C7044

International Model

R7023C1043

Ec7823A1004

R7849A1023

b Q7800B1003 240 50/60 (1)spdt yes 3

Uv - C7027, C7035,

C7044

R7023C1050

Ec7823A1004

R7849A1015

b Q7800B1003 240 50/60 (1)spdt yes 0.8

Uv - C7027, C7035,

C7044

R7023C1068

Rm7823A1016

R7849A1023

b Q7800B1003 120 60 (1)spdt yes 3

Uv - C7027, C7035,

C7044

-40F (-40C) Rated

Page 21

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21 95-6855—15 Honeywell Primary Control Cross Reference

Table 12—7800 Series Cross Reference

Device to be Replaced Current Replacement Alternate Replacement Flame Amplifier a Prepurge Voltage (Vac) Fre quency (Hz) Preigni tion Run/ Test Switch

Pfep

Intm

Pilot

Intr

Pilot

Mfep

Delayed

Mv

Shutter Drive Output Postpurge Comments Prepurge Timing Air-flow Air-Flow Switch Check

Cr7890B1019

120 50/60 10

X

Integrated shutter SSUV detector with RM7890B1014 Fuction using a Brad Harrison type 3R9006A20A120 9 pin connector.

Ec7823A1004

Selectable 230 50/60

X

Flame switch

Ec7885A1003

Ec7885A1011

Selectable 200 50/60 4, 10

X

Semi-Automatic combustion control - Special for Yamatake

Ec7885A1011

Selectable 230 50/60 4, 10

X

Semi-Automatic combustion control

Ec7885A1029

Ec7885A1011

Selectable 230 50/60 4, 10

X

Semi-Automatic combustion control

Ec7890A1003

None Selectable 200 50/60 4, 10

X

Special for Yamatake

Ec7890A1011

Ec7890B1010

Selectable 230 50/60 4, 10

X

0.8 or 3.0 FFRT

Ec7890A1029

Ec7890B1028

Selectable 230 50/60 4, 10

X

1.0 or 2.0 FFRT

Ec7890A1037

Selectable 230 50/60 4, 10

X

1.0 or 2.0 FFRT and Early Spark Termination

Ec7890B1002

None Selectable 200 50/60 4, 10

X

Special for Yamatake

Ec7890B1010

Selectable 230 50/60 4, 10

X

0.8 or 3.0 FFRT

Ec7890B1028

Selectable 230 50/60 4, 10

X

1.0 or 2.0 FFRT

Ec7895A1002

None Selectable b Selectable Proven 200 50/60 4, 10

X

Special for Yamatake

Ec7895A1010

Selectable b Selectable Proven 230 50/60 4, 10

X

0.8 or 3.0 FFRT

Ec7895A1028

None Selectable b Selectable Proven 230 50/60 4, 10

X

1.0 or 2.0 FFRT

Ec7895C1000

Selectable b Selectable Proven 230 50/60 4, 10

X

0.8 or 3.0 FFRT

Ec7895C1018

Not Produced

Ec7895C1026

None Selectable b Selectable Proven 230 50/60 4, 10

X

1.0 or 2.0 FFRT

Rm7823A1008

Rm7823A1016

Selectable 120 50

X

Flame switch

Rm7823A1016

Selectable 120 50/60

X

Flame switch

Rm7838A1006

Rm7838A1014

Selectable b Selectable 120 50 4, 10

X

Semi-automatic control, comes with S7800 Display

Rm7838A1014

Selectable b Selectable 120 50/60 4, 10

X

Semi-automatic control, comes with S7800 Display

Rm7838B1005

Rm7838B1013

Rm7838B1021

Selectable b Selectable Proven 120 50

X

4, 10

X

10

X

Semi-Automatic Programmer control with S7800 Display Module, 4 wire modulation, LF/HF proving

Rm7838B1013

Rm7838B1021

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Semi-Automatic Programmer control with S7800 Display Module, 4 wire modulation, LF/HF proving

Rm7838B1021

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Semi-Automatic Programmer control with Valve Proving Feature and Program mable Post Purge, comes with S7800A1142 Display Module, 4 wire modulation, LF/HF proving. With blink code fault messaging.

Rm7838C1004

Rm7838C1012

Selectable c Selectable Proven 120 50/60

X

4, 10

X

15

X

Semi-Automatic Programmer control with S7800 Display Module, 4 wire modulation, LF/ HF proving. Alarm Sounds only on safety shutdown. Requires ST7800C Purge Timer.

Page 24

95-6855—15 22 Honeywell Primary Control Cross Reference

Table 12—7800 Series Cross Reference

Device to be Replaced Current Replacement Alternate Replacement Flame Amplifier a Prepurge Voltage (Vac) Fre quency (Hz) Preigni tion Run/ Test Switch

Pfep

Intm

Pilot

Intr

Pilot

Mfep

Delayed

Mv

Shutter Drive Output Postpurge Comments Prepurge Timing Air-flow Air-Flow Switch Check

Rm7838C1012

Selectable c Selectable Proven 120 50/60

X

4, 10

X

15

X

Semi-Automatic Programmer control with Valve Proving Feature and Program mable Post Purge, comes with S7800A1142 Display Module, 4 wire modulation, LF/HF proving. Alarm Sounds only on safety shutdown. Requires ST7800C Purge Timer. With blink code fault messaging

Rm7838C1020

Selectable c Selectable Proven 120 50/60

X

4, 10

X

5

X

Semi-Automatic Program mer control, comes with S7800A1001 Display Module, 4 wire modulation, LF/HF proving. Alarm Sounds only on safety shutdown. Requires ST7800C Purge Timer. With blink code fault messaging. Global Approval

Rm7885A1007

Rm7885A1015

Selectable 120 50 4, 10

X

Semi-Automatic combustion control

Rm7885A1015

Selectable 120 50/60 4, 10

X

Semi-Automatic combustion control

Rm7885A1023

None Selectable 100 50/60 4, 10

X

Semi-Automatic combustion control - Special for Yamatake

Rm7888A1001

Rm7888A1019

Selectable 120 50 4

X

PLC Sequencing per North American Manufacturing specifications

Rm7888A1019

Selectable 120 50/60 4

X

PLC Sequencing per North American Manufacturing specifications

Rm7888A1027

Selectable 120 50/60 10

X

PLC Sequencing per North American Manufacturing specifications

Rm7890A1007

Rm7890A1015

Rm7890A1056

Selectable 120 50 4, 10

X

Rm7890A1015

Rm7890A1056

Selectable 120 50/60 4, 10

X

Rm7890A1031

Selectable 120 50/60 Fixed 30

X

Rm7890A1049

Selectable 100 50/60 4, 10

X

Special for Yamatake

Rm7890A1056

Rm7890B1048

Selectable 120 50/60

X

4, 10

X

With Valve Proving Feature and Pre Ignition Interlock Input. With blink code fault messaging

Rm7890A1064

Selectable 120 50/60

X

4, 10

X

Full PFEP with Early Spark Termination

Rm7890B1006

Rm7890B1014

Rm7890B1048

Selectable 120 50 4, 10

X

Rm7890B1014

Rm7890B1048

Selectable 120 50/60 4, 10

X

Rm7890B1022

Selectable 100 50/60 4, 10

X

Special for Yamatake

Rm7890B1030

Selectable 120 50/60 fixed 10

X

Alarm outputs moment reset pushed per North American Manufacturing specifications

Rm7890B1048

Selectable 120 50/60

X

4, 10

X

With Valve Proving Feature and Pre Ignition Interlock Input. With blink code fault messaging

Rm7890B1055

Selectable 120 50/60 4, 10

X

Global Approval

Rm7890C1005

Selectable 120 50/60

X

for Standing Pilot Applications (continued)

Page 25

23 95-6855—15 Honeywell Primary Control Cross Reference

Table 12—7800 Series Cross Reference

Device to be Replaced Current Replacement Alternate Replacement Flame Amplifier a Prepurge Voltage (Vac) Fre quency (Hz) Preigni tion Run/ Test Switch

Pfep

Intm

Pilot

Intr

Pilot

Mfep

Delayed

Mv

Shutter Drive Output Postpurge Comments Prepurge Timing Air-flow Air-Flow Switch Check

Rm7890D1004

Selectable 120 50/60 15/30

X

for Infrared Heater Applications

Rm7895A1006

Rm7895A1014

Rm7897A1002

Selectable b Selectable Proven 120 50 4, 10

X

Rm7895A1014

Rm7897A1002

Selectable b Selectable Proven 120 50/60 4, 10

X

Rm7895A1022

Not Produced

Rm7895A1030

Selectable b Selectable Proven 120 50/60 Limited

X

Required Q7800A1013 sub base. Special for Fulton.

Rm7895A1048

Selectable b Selectable Proven 120 50/60 4, 10

X

Spark shuts off during PFEP if flame sensed

Rm7895A1055

Selectable b Selectable Proven 100 50/60 4, 10

X

Special for Yamatake

Rm7895A1063

Selectable b Selectable Proven 120 50/60 90

X

Rm7895B1005

Rm7895B1013

Selectable b Selectable Proven

X

120 50 4, 10

X

Rm7895B1013

Selectable b Selectable Proven

X

120 50/60 4, 10

X

Rm7895C1004

Rm7895C1012

Rm7897C1000

Selectable b Selectable Proven 120 50

X

4, 10

X

10

X

Rm7895C1012

Rm7897C1000

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Rm7895C1020

Selectable b Selectable Proven 120 50/60

X

10

X

10

X

Special Early Spark Termina tion

Rm7895C1038

Not Produced

Rm7895C1046

Not Produced

Rm7895C1053

Selectable b Selectable Proven 120 50/60

X

3.0 fixed

X

10

X

Rm7895D1003

Rm7895D1011

Selectable b Selectable Proven

X

120 50

X

4, 10

X

10

X

Rm7895D1011

Selectable b Selectable Proven

X

120 50/60

X

4, 10

X

10

X

Rm7895E1002

Selectable b Selectable Proven 120 50/60 15, 30

X

for Infrared Heater Applications

Rm7895E1010

Selectable b Selectable Proven 120 50/60 15, 30

X

AERCO Special

Rm7895F1001

Selectable b Selectable Proven

X

120 50/60 15, 30

X

for Infrared Heater Applications

Rm7896A1004

Rm7896A1012

Rm7897A1002

Selectable b Selectable Proven 120 50 4, 10

X

10

X

15

Rm7896A1012

Rm7897A1002

Selectable b Selectable Proven 120 50/60 4, 10

X

10

X

15

Rm7896B1003

Rm7896B1011

Selectable b Selectable Proven

X

120 50 4, 10

X

10

X

15

Rm7896B1011

Selectable b Selectable Proven

X

120 50/60 4, 10

X

10

X

15

Rm7896C1002

Rm7896C1010

Rm7897C1000

Selectable b Selectable Proven 120 50

X

4, 10

X

10

X

15

Rm7896C1010

Rm7897C1000

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

15

Rm7896C1028

Not Produced

Rm7896C1036

Selectable b Selectable Proven 120 50/60

X

10

X

10

X

15 Special Early Spark Termina tion

Rm7896D1001

Rm7896D1019

Selectable b Selectable Proven

X

120 50

X

4, 10

X

10

X

15

Rm7896D1019

Selectable b Selectable Proven

X

120 50/60

X

4, 10

X

10

X

15

Rm7896D1027

Selectable b Selectable Proven

X

120 50/60

X

4, 10

X

10

X

60 With blink code Fault Messag ing, Special for Burnham

Rm7897A1002

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Pro grammed With Pre Ignition Interlock Input and blink code Fault Messaging. Intermittent or In terrupted Pilot valve operation (continued)

Page 26

95-6855—15 24 Honeywell Primary Control Cross Reference

Footnotes:

a Amplifier Options Rectification Standard >50 feet leadwire run Ampli-check >50 feet leadwire run 0.8 sec. FFRT

R7847A1025

R7847A1075

R7847B1023

R7847B1064

3 sec. FFRT

R7847A1033

R7847A1082

R7847B1031

R7847B1072

Uv

0.8 sec. FFRT

R7849A1015

R7849B1013

3 sec. FFRT

R7849A1023

R7849B1021

Dynamic Self-Check for Detector

C7012E, F

R7847C1005

C7061A, F

R7861A1026

3 sec. FFRT

R7861A1034

0.8 sec. FFRT

C7076A, D

R7886A1001

C7961E, F

R7851C1008

Optical C7927, C7962 0.8 sec. FFRT

R7851B1018

3 sec. FFRT

R7851B1000

c Purge Timer Options Timing

St7800

Timing

St7800

2 seconds

C1003

14 Minute

C1078

20 seconds

C1011

16 Minute

C1086

4 Minute

C1029

18 Minute

C1094

6 Minute

C1037

20 Minute

C1102

8 Minute

C1045

22 Minute

C1110

10 Minute

C1052

24 Minute

C1128

12 Minute

C1060

30 Minute

C1135

45 Minute

C1143

Note: ST7800C purge timers for use with RM7838C only. b Purge Timer Options Timing

St7800

Timing

St7800

2 seconds

A1005

2.5 Minute

A1070

7 seconds

A1013

4 Minute

A1088

10 seconds

A1021

6 Minute

A1096

30 seconds

A1039

9 Minute

A1104

40 seconds

A1047

12 Minute

A1112

60 seconds

A1054

15 Minute

A1120

90 seconds

A1062

22 Minute

A1138

30 Minute

A1146

Table 12—7800 Series Cross Reference

Device to be Replaced Current Replacement Alternate Replacement Flame Amplifier a Prepurge Voltage (Vac) Fre quency (Hz) Preigni tion Run/ Test Switch

Pfep

Intm

Pilot

Intr

Pilot

Mfep

Delayed

Mv

Shutter Drive Output Postpurge Comments Prepurge Timing Air-flow Air-Flow Switch Check

Rm7897C1000

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Pro grammed With Pre Ignition Interlock Input and blink code fault mes saging. Intermittent or Inter rupted Pilot valve operation

Rm7897C1018

Selectable b Selectable Proven 120 50/60

X

4, 10

X

4

X

Pro grammed With pre Ignition Interlock Input and blink code fault messag ing. Intermittent or Interrupted pilot valve operation

Rm7897C1027

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Pro grammed With pre Ignition Interlock Input and blink code fault messag ing. Intermittent or Interrupted pilot valve operation - Special JR2 recycle function on loss of Main Flame.-Special per Titan Aire

Rm7898A1002

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Pro grammed With Valve Proving Feature, Pre Ignition Interlock Input and blink code fault messaging. Intermittent or Interrupted Pilot valve operation

Rm7898A1018

Selectable b Selectable Proven 120 50/60

X

4, 10

X

10

X

Pro grammed With Valve Proving Feature, Pre Ignition Interlock Input and blink code fault messaging. Intermittent or Interrupted Pilot valve operation and Special Spark Shutoff feature. (continued)

Page 27

25 95-6855—15 Honeywell Primary Control Cross Reference TFM or UVM replacement TFM and UVM series devices contained the Flame amplifier circuitry on the device. The M2, M3 and M5 models included plug in (MTXX) purge function. Note model for correct replacement.

Table 13—Honeywell Cross-Reference For Fireyetm Tfm And Uvm Replacement

Device to be Replaced RM789X/R7120 Replacement Voltage (Vac) Fre quency (Hz) Flame Detetector Type

Ffrt

(sec)

Pfep

(sec) Pilot Type (Int/Itr) a Pre purge Timing (Sec) Com ments

Rm7895

Replacement b c Enhanced

Rm789X

Replacement b c

R7120

Replace ment c d Purge Timer Amplifier RM789X/R7120 Comments

Tfm1D

discontinued in 1999 120 50/60 Rectifica tion 0.8 10 Int Relight

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

R7847A1025

Tfm1F

discontinued in 1999 120 50/60 Rectifica tion 4 10 Int Relight

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

R7847A1033

Tfm-2A7

120 50/60 Rectifica tion 2-4 12 Int 7

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1013

R7847A1033

See Footnote e.

Tfm-2A30

120 50/60 Rectifica tion 2-4 12 Int 30

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1039

R7847A1033

See Footnote e.

Tfm-2A90

120 50/60 Rectifica tion 2-4 12 Int 90

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1062

R7847A1033

See Footnote e.

Tfm3-7

120 50/60 Rectifica tion 2-4 12 Int 7 Non- recycle

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1013

R7847A1033

See Footnote e.

Tfm3-3H

120 50/60 Rectifica tion 2-4 12 Int 7 Non- recycle

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1013

R7847A1033

See Footnote e.

Tfm3-90

120 50/60 Rectifica tion 2-4 12 Int 90 Non- recycle

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1062

R7847A1033

See Footnote e.

Tfm2

120 50/60 Rectifica tion 2-4 4, 10 Int Depends on MTXX

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

See Below: Footnote e

R7847A1033

See Footnote e.

Tfm3X3H

120 50/60 Rectifica tion 2-4 4, 10 Int Depends on MTXX Non- recycle

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

See Below: Footnote e

R7847A1033

See Footnote e.

Uvm1D

discontinued in 1999 120 50/60 Ultarviolet 0.8 10 Int Relight

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

R7849A1015

Select appropriate Honeywell Ultraviolet flame detector

Uvm1F

discontinued in 1999 120 50/60 Ultarviolet 4 10 Int Relight

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

R7849A1023

Select appropriate Honeywell Ultraviolet flame detector

Uvm-2A

120 50/60 Ultarviolet 2-4 12 Int 30

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1039

R7849A1023

See Footnote e. Plus select appropriate Honeywell Ultraviolet flame detector

Uvm-2A7

120 50/60 Ultarviolet 2-4 12 Int 7

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000”

R7120M1001

St7800A1013

R7849A1023

See Footnote e.

Uvm-2A30

120 50/60 Ultarviolet 2-4 12 Int 30

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1039

R7849A1023

See Footnote e. Plus select appropriate Honeywell Ultraviolet flame detector

Uvm-2A90

120 50/60 Ultarviolet 2-4 12 Int 90

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1062

R7849A1023

See Footnote e. Plus select appropriate Honeywell Ultraviolet flame detector

Uvm3-7

120 50/60 Ultarviolet 2-4 12 Int 7 Non- recycle

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1013

R7849A1023

See Footnote e. Plus select appropriate Honeywell Ultraviolet flame detector

Uvm3-90

120 50/60 Ultarviolet 2-4 12 Int 90 Non- recycle

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1062

R7849A1023

See Footnote e. Plus select appropriate Honeywell Ultraviolet flame detector

Uvm2

120 50/60 Ultarviolet 2-4 4, 10 Int Depends on MTXX

Rm7895A1014

Rm7895B1013

Rm7897A1002

Rm7898A1000

R7120M1001

See Below: Footnote e

R7849A1023

See Footnote e. Plus select appropriate Honeywell Ultraviolet flame detector Continued on next page >>

Page 28

Page 29

27 95-6855—15 Honeywell Primary Control Cross Reference MII REPLACEMENT: The MII is of solid state design Modular M series. The following components need to be known for selecting the Honeywell replacement devices.

Control Chassis

Program Module along with dip switch settings

Flame Amplifier Module

Table 14—Program Module for MII Device to be Replaced Replacement a Pilot Type (Int/Itr) Trial for Ignition (sec) Comments b c

Rm789X

Replacement b c Enhanced

Rm789X

Replacement c d

R7120

Replacement

Rm789X/

R7120

Purge Timer Comments

Mp100

Int 10 energizes main valve when flame sensed

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1013

Honeywell replacement has full PFEP before Main energized

Mp101

Int 10 Allows flame in standby

Rm7895A1014

St7800A1013

Honeywell replacement has full PFEP before Main energized Honeywell does not allow flame in standby

Mp102

Int 5 energizes main valve when flame sensed

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1013

Clip JR1 or (orange jumper on R7795) for 4 sec PFEP; Honeywell replacement has full PFEP before Main energized

Mp230

Int 10 energizes main valve when flame sensed

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

See Dip Switch 1-5 Check dip switches for purge, PTFI, recycle/non recycle for replace ment features

Mp230H

Int 10 3 second ignition cutout before main valve energized (Pilot Stabilization period).

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

See Dip Switch 1-5 Check dip switches for purge, PTFI, recycle/non recycle for replace ment features; Honeywell replacement has full PFEP before Main energized

Mp560

Itr 10 3 second ignition cutout, 10 sec MTFI with run/test Switch

Rm7895C1012

Rm7897A1002

Rm7898A1000

R7120M1001

See Dip Switch 1-5 Check dip switches for purge, PTFI, recycle/non recycle for replace ment features; Honeywell replacement has full PFEP before Main energized

Mp561

Itr 10 lockout on Flame Failure and running interlocks with run/ test Switch

Rm7895C1012

Rm7897A1002

Rm7898A1000

R7120M1019

See Dip Switch 1-5 Clip JR2 & 3 for RM789X/R7120 device.

Mp562

Itr 10 8 second pilot stabili zation time and lock out on loss of running interlocks with run/ test Switch

Rm7895C1012

Rm7897A1002

Rm7898A1000

See Dip Switch 1-5 Clip JR3 for RM789X/R7120 device

Footnotes:

a Int: Intermittent, Itr: Interrupted b The RM789X control is not a direct plug in replacement . See Modernization wiring information for wiring diagrams. c Replacement suggestions have fixed PFEP (4 or 10) where the Fireye control went to Run when (or shortly after) flame was sensed. d R7120 suggestion is a direct plug in replacement.

Page 30

Page 31

29 95-6855—15 Honeywell Primary Control Cross Reference MicroM REPLACEMENT: The MicroM is of microprocessor based design Modular M series. The following components need to be known for selecting the Honeywell replacement devices.

Control Chassis

Program Module along with dip switch settings

Flame Amplifier Module

Optional Plug In Board

Table 15—Control Chassis for the Micro M (for use with MEP1XX, MEP2XX, and MEP5XX) Device to be Replaced Voltage (Vac) Frequency (Hz) Feature Comments for RM789X/R7120 Replacement

Mec120

120 50/60

Mec120C

120 50/60 Communications Add S7810M1003 or use S7800A1001 Keyboard Display (S7800A1142 for Enhanced Replacement) and program for ModBus

Mec120D

120 50/60 Display Feature Add S7800A1001 Keyboard Display (S7800A1142 for Enhanced Replacement)

Mec120R

120 50/60 Remote Reset Add S7820A1007 Remote Reset Module

Mec120Rc

120 50/60 Reset and Communications Add S7810M1003 or use S7800A1001 Keyboard Display (S7800A1142 for Enhanced Replacement) and program for ModBus and connect unpowered reset button to display’s terminals 3 and 5.

Mec120Rd

120 50/60 Reset and Display Add S7800A1001 Keyboard Display (S7800A1142 for Enhanced Replacement) Connect unpowered reset button to display’s terminals 3 and 5.

Mec230

230 50/60 Reset, Display and Communications Select EC7895A or EC7895C; use S7800 Keyboard display and program for ModBus and connect unpowered reset button to display’s terminals 3 and 5 Table 16—Control Chassis for the Micro M (for use with MEP3XX, MEP4XX, and MEP6XX) Device to be Replaced Voltage (Vac) Frequency (Hz) Feature Comments for RM789X/R7120 Replacement

Mec320

120 50/60 Standard plug in board

Mec320R

120 50/60 Remote Reset Add S7820A1007 Remote Reset Module

Mec320D

120 50/60 Display Feature Add S7800A1001 Keyboard Display (S7800A1142 for Enhanced Replacement

Mec320Rd

120 50/60 Remote Reset and Display Add S7800A1001 Keyboard Display (S7800A1142 for Enhanced Replacement wire remote reset to terminals 3 and 5.

Mec320C

120 50/60 Communications Add S7810M1003 or use S7800 Keyboard display and program for ModBus

Mec320Rc

120 50/60 Reset and Communications Add S7810M1003 or use S7800 Keyboard display and program for ModBus wire remote reset to terminals 3 and 5.

Mec320Ts

120 50/60 Display interface to ED510, Modbus inter face, Aux. relay for controller MED8 Add S7800 Keyboard display and program for Modbus

Mec480

230 50/60 Chassis for MEP3XX, MEP4XX or MEP6XX Select EC7895A or EC7895C;

Mec480Rc

230 50/60 Reset and Communications Select EC7895A or EC7895C; use S7800 Keyboard display and program for ModBus and add reset button to appropriate terminals

Page 32

Page 33

31 95-6855—15 Honeywell Primary Control Cross Reference Table 18—MicroM Program Module (for use with MEC120 and MEC 230 chassis) Device to be Replaced Replacement Suggestion Model Feature RM7895 or

Rm7896

Replacement Enhanced 7800 Replacement

R7120

Replacement Prepurge Timer (required for RM789X or

R7120)

Comments

Mep100

Intermittent Pilot, Relight, 10 PTFI

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

Replacement suggestions has a complete PFEP, Fireye cuts off when flame sensed.

Mep100P

MEP100 with 15 sec. post purge

Rm7896A1012

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

Replacement suggestions has a complete PFEP, Fireye cuts off when flame sensed. Program RM7897 or RM7898 for 15 second post purge

Mep101

same as MEP100 but allows flame during ‘off’ cycle

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

Replacement suggestions has a complete PFEP, Fireye cuts off when flame sensed. Replacement RM does not allow flame during ‘off’ cycle

Mep102

same as MEP100 with 10 sec. PTFI, Lockout on flame failure.

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

Replacement suggestions has a complete PFEP, Fireye cuts off when flame sensed. Clip JR1 and JR2

Mep103

Fixed 10 sec. Spark Ignitor Sensing Period followed by a 10 sec. MTFI, with 30 second post purge. Will retry once on ignitor failure None None None No Honeywell suggestion for this spark feature.

Mep104

MEP100 with 10 sec. PTFI, Lockout on flame failure.

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

Replacement suggestions has a complete PFEP, Fireye cuts off when flame sensed. Clip JR2

Mep105

Non recycle on flame fail, lockout on limit failure, 10 sec. PTFI

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

St7800A1005

Replacement suggestions has a complete PFEP, Fireye cuts off when flame sensed. Clip JR2 and JR3

Mep230

Equiped with dip switches to select: Prepurge timing, PTFI, post purge, recycle/non recycle on main flame loss, and proven open to start air flow switch. Ignition turns off 3 seconds before main valve energized. See Table 21. See Table 21. Clip JR3

Mep230H

same as MEP230 with 8 sec. pilot stabilization period. See Table 21. See Table 21. RM789X or R7120 has 10 second PFEP, but NOT pilot stabilization feature, RM7898A1018 has a early spark termination when flame is sensed.

Mep234

Selectable: PTFI, prepurge timing, prove limits open on start, 10 sec. Pilot proving, MTFI, post purge, non recycle on flame fail.

Rm7896B1011

None None See Table 21. Clip JR2 and JR3

Mep235

MEP230 with lockout on limits open 10 sec. after start, selectable recycle/ non recycle on open after flame is proven, dedicated lockout on loss of flame See Table 21. See Table 21. Clip JR2 and JR3

Mep236

same as MEP230 with 6 sec. ad ditional ignition on with main fuel (for use with intermittent pilot only).

Rm7895A1014

Rm7897A1002

Rm7898A1000

R7120M1001

See Table 21. RM789X or R7120 does not keep the ignition on into the main flame estabishing time

Mep237

Same as MEP230, fixed PTFI, Inter rupted pilot, use MEDC2 amp for 85 & 95 series scanners None None None None No Honeywell device for this scanner series

Page 34

95-6855—15 32 Honeywell Primary Control Cross Reference Table 18—MicroM Program Module (for use with MEC120 and MEC 230 chassis) Device to be Replaced Replacement Suggestion Model Feature RM7895 or

Rm7896

Replacement Enhanced 7800 Replacement

R7120

Replacement Prepurge Timer (required for RM789X or

R7120)

Comments

Mep238

Same as MEP230, ignition shutoff 3 sec after flame sense, 8 sec pilot stabilization period

Rm7895A1048

Rm7898A1018

None See Table 21. RM7895/8 has a fixed PFEP so pilot stabilization time dependant on how soon flame is sensed.

Mep290

same as MEP230H with 0 or 90 sec ond post purge. See Table 21. See Table 21. Program RM7897, RM7898 R7120 for 90 second post purge. RM789X or R7120 has 10 second PFEP, but NOT pilot stabilization feature, RM7898A1018 has a early spark termination when flame is sensed.

Mep300

Relight operation, 10 sec fixed PTFI, 5 second pilot proving period, 5 second MTFI, lockout on flame fail during PTFI, pilot proving and MTFI. Recycle on air flow open, no post purge, reset on line voltage. None

Rm7897C1018

None See Table 21. Suggested control DOES NOT shut off ignition for 5 second pilot prov ing period. RM789X or R7120M requires contact closure reset when using S7820A1007 module

Mep304

non recylce on flame failure, 5 sec purge, 10 sec fixed PTFI, 5 sec pilot proving, 10 sec MTFI, inturrupted pilot, early spark termination.

Rm7895C1020

Rm7897C1000

Rm7898A1018

R7120M1019

St7800A1005

Suggested RM7897C or R7120M control DOES NOT shut off ignition for 5 second pilot proving period. RM789X or R7120M requires contact closure reset when using S7820A1007 module Clip JR2

Mep335

Non recycle on flame fail, 30 sec purge, 35 sec hot surface ignition on terminal 4, 3 sec PTFI on terminal 3, 5 second pilot proving period, intermit tent pilot, 15 second post purge, Manual reset only. None None None Honeywell does not offer 35 second hot surface device

Mep397

Recycle on main flame fail, 15 second purge, 7 second fixed PTFI, 5 second pilot proving 5 sec MTFI, early spark termination and inturrupted pilot. Recycle on air flow failure, no post purge, run check switch, reset on line voltage. None

Rm7897C1018

None

St7800A1021

or

St7800A1039

(no 15 purge available) Suggested control DOES NOT shut off ignition for 5 second pilot prov ing period. RM789X or R7120M requires contact closure reset when using S7820A1007 module

Mep437

Recycle once on main flame failure, selectable 5 or 10 sec fixed PTFI, selectable interrupted or intermittent pilot, 5 sec MTFI, selectable purge time to 240 seconds, main valve proof of closure, 15 second post purge, reset on line voltage. None

Rm7897A1002

for Intermittent,

Rm7897C1000

for Interrupted or

Rm7898A1000

None See Table 21. Suggested control DOES NOT offer 5 sec MFEP (MTFI) requires contact closure reset when using S7820A1007 module or S7800A1142 display, use display to program 15 second post purge, POC is separate input to RM.

Mep536

same as MEP560 without pilot stabi lization period. Will not lockout on air flow open during purge period. If switch 3 closed

Rm7895D1011

or If switch 3 open

Rm7896D1019

Rm7897C1000

or

Rm7898A1018

R7120M1019

See Table 21. RM789X/R7120 suggestion, does NOT offer special Airflow switch feature. (continued)

Page 35

33 95-6855—15 Honeywell Primary Control Cross Reference Table 18—MicroM Program Module (for use with MEC120 and MEC 230 chassis) Device to be Replaced Replacement Suggestion Model Feature RM7895 or

Rm7896

Replacement Enhanced 7800 Replacement

R7120

Replacement Prepurge Timer (required for RM789X or

R7120)

Comments

Mep537

same as MEP536 except provides one recycle on main flame failure. If switch 3 closed

Rm7895D1011

or If switch 3 open

Rm7896D1019

Rm7897C1000

or

Rm7898A1000

R7120M1019

See Table 21. RM7897, RM7898, R7120 do NOT offer dynamic AFS Feature. RM789X or R7120M do NOT offer one recycle, Clip JR3 to lockout on main flame failure.

Mep560

same as MEP230H with 10 sec. MTFI, Run-Check switch. 8 second pilot sta bilization before main valve energized. If switch 3 closed

Rm7895D1011

or If switch 3 open

Rm7896D1019

Rm7897C1000

or

Rm7898A1018

R7120M1019

See Table 21. RM789X 10 second PFEP, but NOT pilot stabilization feature, RM7898A1018 has a early spark termination when flame is sensed so some pilot stabilization time. RM7897, RM7898, R7120 do NOT offer dynamic AFS Feature.

Mep561

same as MEP560 with 3 second pilot stabilization period before main valve energized, selectable purge timings of 7, 10, 15, or 30 seconds. If switch 3 closed

Rm7895D1011

or If switch 3 open

Rm7896D1019

Rm7897C1000

or

Rm7898A1018

R7120M1019

See Table 21. RM789X 10 second PFEP, but NOT pilot stabilization feature, RM7898A1018 has a early spark termination when flame is sensed so some pilot stabilization time. RM7897, RM7898, R7120 do NOT offer dynamic AFS Feature.

Mep562

same as MEP560 with lockout on loss of flame and limit circuit open. If switch 3 closed

Rm7895D1011

or If switch 3 open

Rm7896D1019

Rm7897C1000

or

Rm7898A1018

R7120M1019

See Table 21. RM789X 10 second PFEP, but NOT pilot stabilization feature, RM7898A1018 has a early spark termination when flame is sensed so some pilot stabilization time. RM7897, RM7898, R7120 do NOT offer dynamic AFS Feature. Clip JR2 and JR3,

Mep564

same as MEP560 with 3 second pilot stabilization period before main valve energized, selectable purge timings of 7, 30, 60, or 240 seconds. If switch 3 closed

Rm7895D1011

or If switch 3 open

Rm7896D1019

Rm7897C1000

or

Rm7898A1018

R7120M1019

See Table 21. RM789X 10 second PFEP, but NOT pilot stabilization feature, RM7898A1018 has a early spark termination when flame is sensed so some pilot stabilization time. RM7897, RM7898, R7120 do NOT offer dynamic AFS Feature.

Mep696

Provides 30 seconds of prepurge, lockout on airflow after 10 seconds, 10 sec PTFI, 5 sec pilot proving, early spark termination, 5 sec MTFI, interrupted pilot, selectable recycle/ non recycle on flame failure, 60 sec. post purge, selectable baud rate for communication, output for external controller operation.

Rm7897C1018

St7800A1039

Suggested control DOES NOT shut off ignition for 5 second pilot prov ing period. Use S7800A1142 to program 60 second post purge and set up for Modbus Communications.

RM7897 does NOT have output for external controller. (continued)

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Honeywell RM7895A1014 Flame Safeguard

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