Removing And Replacing The Relay/Timer Cover; Installing A Plug-In Flame Signal Amplifier; Installation Instructions For Special Features - Honeywell R4140G Installation Instructions Manual

Removing and Replacing the Relay/Timer
Cover (Fig. 4)
CAUTION
If the programmer is mounted on the subbase, open
the master switch before removing or replacing the
relay/timer cover.
The relay/timer cover must be removed to install a plug-in
flame signal amplifier, to observe relay and timer operation, or
to inspect the contacts.
Removing the Cover
Grasp the relay/timer cover and squeeze until the V-notch
on the cover slides free of the stud on the handle.
Rotate the cover down and out to disengage the two tabs
from the slot in the bottom of the programmer chassis.
Pull out the cover.
Replacing the Cover
Insert the two tabs on the bottom of the cover between
the timer and the programmer chassis and engage
them with the slot in the bottom of the chassis. Make
sure the tabs are not jammed in the slot.
Rotate the cover up and in so the V-notch slides along
the stud on the handle. If the cover does not rotate
easily, the tabs are jammed.
Make sure the spring clip on the cover fits over the
plug-in amplifier.
Push in on the cover until the V-notch snaps into place
on the stud.
HANDLE
SPRING CLIP
ON COVER
PLUG IN
AMPLIFIER
TIMER
DIAL
TIMER
SLOT IN
RELAY/
CHASSIS
TIMER COVER
Fig. 4. Removing and replacing the relay/timer cover.

Installing a Plug-in Flame Signal Amplifier

(Fig. 5)
Remove the relay/timer cover.
Make sure the Honeywell monogram is on the outside,
then align the circuit board with the keyed receptacle on
the programmer.
R4140G, L AND M FLAME SAFEGUARD PROGRAMMING CONTROLS
V-NOTCH
STUD ON
ON COVER
HANDLE
BOTTOM OF
PROGRAMMER
CHASSIS
TABS (2)
ON COVER
M7967
NOTE: If installing a small amplifier, align its ends with
the two scribe marks alongside the receptacle
on the programmer.
Push in the amplifier until the circuit board is fully
inserted into the receptacle.
Make sure the amplifier is firmly in place, then replace
the relay/timer cover. Make sure the spring clip on the
cover fits over the amplifier.
NOTE: For further information about a self-checking
amplifier, refer to the Instructions packed
with the amplifier (form 60-2358 for an
R7247B or C, form 60-2357 for an R7248B, or
form 95-8270 for an R7476A).
HONEYWELL
MONOGRAM
ALIGNMENT
SCRIBE MARKS
FOR SMALL
AMPLIFIER
KEYED
RECEPTACLE
HONEYWELL
MONOGRAM
KEYED
RECEPTACLE
CIRCUIT
BOARD
Fig. 5. Installing a plug-in flame signal amplifier.

Installation Instructions for Special Features

Some TRADELINE® models and international models (rated
for other than 120V, 60 Hz) can have one (or both) of the
following special features.
7
AMPLIFIER
TIMER
TIMER DIAL
CIRCUIT
BOARD
PROGRAMMER
CHASSIS
AMPLIFIER
PROGRAMMER
M7961
CHASSIS
60-0770—2