Honeywell DVD Recorder L Benutzerhandbuch

25

66-1153—03

1. In Pre-Purge Drive To High Fire Position (R7140L), the 

Run/Test Switch, when placed in the TEST position, 

holds in PREPURGE with the firing rate motor in the 

High Fire position.

2. In the measured PREPURGE sequence, the Run/Test 

Switch, when placed in the TEST position, causes the 

PREPURGE timing to stop. The firing rate motor is in 

the High Fire position.

3. In Pre-Purge Drive to Low Fire position, the Run/Test 

Switch, when placed in the TEST position, holds the 

burner sequence in PREPURGE with the firing rate 

motor in the Low Fire position.

4. In PFEP, the Run/Test Switch, when placed in the TEST 

position, stops the timer during the first 8 seconds when a 

10-second PFEP is selected or during the first 3 seconds 

when a 4-second PFEP is selected, allowing pilot-turn-

down test and other burner adjustments to be made. This 

activates a 15-second flameout timer that permits pilot 

flame adjustment without nuisance safety shutdowns. The 

Run/Test Switch is ignored during PFEP for the R7140L if 

terminals 5 and 7 or 7 and 6 are jumpered.

5. During Run, the Run/Test Switch, when placed in the 

TEST position, drives the firing rate motor to the Low 

Fire position.

The R7140 has three site-configurable jumper options; see 

Fig. 19 and Table 7. If necessary, clip the site-configurable 

jumpers with side cutters and remove the resistors from the 

Relay Module.

The R7140M has two additional jumpers located on the back 

of the chassis. These must be cut if a spring return damper 

motor is used.

a

Pilot Valve/First Stage Oil Valve (Valve/Start) terminal 6.

b

A 30 second MFEP can be accomplished by adding a jumper wire between terminals 15 and 8.

SERVICE NOTE: Clipping and removing these site-configurable jumpers enhances the level of safety. Removal after 200 hours of 

main valve operation will result in a hard lockout, Code 110.

RUN/TEST SWITCH

NOTE:  CONFIGURATION JUMPERS SHOWN FOR RM7800G/RM7840G.

SELECTABLE CONFIGURATION JUMPERS

M12301

JR1

Pilot Flame Establishing 

Period (PFEP)

10 seconds

4 seconds

All

JR2

Pilot Valve

a

/Main Flame 

Establishing Period (MFEP)

10 seconds

Intermittent

15 or 30 seconds Interrupted

b

R7140G

JR3

Start-up Interlock Check

Disabled

Enabled

All