Honeywell RM7800E ユーザーズマニュアル

3

66-1085—04

a. Do not run high voltage ignition transformer wires in 

the same conduit with the flame detector, Data 

Controlbus Module™, or Remote Reset Module 

wiring.

b. Do not route flame detector, Data Controlbus 

Module™, or Remote Reset Module leadwires in 

conduit with line voltage circuits.

c. Enclose flame detector leadwires without armor 

cable in metal cable or conduit. 

d. Follow directions in flame detector, Data Controlbus 

Module™, or Remote Reset Module Instructions.

8. Keyboard Display Module (KDM): Because the KDM is 

powered from a low voltage, energy limited source, it 

can be mounted outside of a control panel if it is 

protected from mechanical damage. 

NOTE: A 13 Vdc power supply must be used any time more 

than one Keyboard Display Module is used.

9. Maximum wire lengths follow:

a. RM7800/RM7840 leadwires—The maximum length 

of leadwire is 300 feet to terminal inputs (Control, 

Preignition Interlock,  Running/Lockout Interlock, 

High Fire Switch and Low Fire Switch). 

b. Flame Detector leadwires—The maximum flame 

sensor leadwire length is limited by the flame signal 

strength.

c. Remote Reset leadwires—The maximum length of 

wire is 1000 feet to a Remote Reset pushbutton.

d. Data Controlbus Module™—The maximum Data 

Controlbus Module™ cable length depends on the 

number of system modules connected, the noise 

conditions and the cable used. The maximum length 

of all Data Controlbus Module™ interconnecting 

wire is 1000 feet.

10. Make sure loads do not exceed the terminal ratings. 

Refer to the label on the RM7800/RM7840 or to the 

ratings in Tables 3, 4 and 5.

1. Check the power supply circuit. The voltage and 

frequency tolerance must match those of the 

RM7800/RM7840. A separate power supply circuit may 

be required for the RM7800/RM7840. Add the required 

disconnect means and overload protection. 

2. Check all wiring circuits and complete the Static 

Checkout, see Table 8, before installing the 

RM7800/RM7840 on the subbase. 

3. Install all electrical connectors. 

4. Restore power to the panel. 

Line voltage terminals

14, 16 or 18 AWG copper conductor, 600 

volt insulation, moisture-resistant wire.

TTW60C, THW75C, THHN90C.

Keyboard Display Module (KDM)

22 AWG two-wire twisted pair with 

ground, or five wire.

Belden 8723 shielded cable or equivalent.

Data ControlBus Module™

22 AWG two-wire twisted pair with 

ground, or five wire.

Belden 8723 shielded cable or equivalent.

Remote Reset Module

22 AWG two-wire twisted pair, insulated 

for low voltage.

—

13 Vdc full-wave rectified transformer 

power input.

18 AWG wire insulated for voltages and 

temperatures for given application.

TTW60C, THW75C, THHN90C.