Honeywell 7800 Series Installation Instructions Manual page 16

RM7838B, RM7838C 7800 SERIES RELAY MODULES
Mounting RM7838B,C Relay
Module
1. Mount the RM7838B,C vertically on the Q7800
Subbase, or mount horizontally with the knife blade
terminals pointing down. (For mounting on the
Q7800A, mount the RM7838B,C in an electrical
enclosure.)
2. When mounting in an electrical enclosure, provide
adequate clearance for service, installation and
removal of the RM7838B,C, KDM, flame amplifier,
flame amplifier signal voltage probes, electrical
signal voltage probes, and electrical connections.
a. Allow an additional 2 in. (51 mm) below the
RM7838B,C for the flame amplifier mounting.
b. Allow an optional 3 in. (76 mm) minimum to both
sides of the RM7838B,C for electrical signal volt-
age probes.
32-00211—01
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
Install the RM7838B,C with a plug-in motion
rather than a hinge action.
4. Mount the RM7838B,C by aligning the four L-
shaped corner guides and knife blade terminals with
the bifurcated contacts on the wiring subbase and
securely tightening the two screws without
deforming the plastic.
Mounting Other System
Components
Mount other required and optional system components by
referring to Fig. 25 and the instructions provided with
each component.
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