95-6046EF J.H. Rev. 1-02
customer.honeywell.com
RP418A, B, C AND RP818A, B ELECTRIC/PNEUMATIC RELAYS
Automation and Control Solutions
Honeywell
Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North
35 Dynamic Drive
Golden Valley, MN 55422
Scarborough, Ontario
M1V 4Z9
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
Fig. 2. RP418 or RP818 relays mounted directly to an
MP516A operator using the 14003638-001 adaptor kit.
Fig. 3. RP418 or RP818 relays mounted directly to a
VP512C valve using the 14003638-001 adaptor kit.
Wiring and Piping
All pneumatic piping connections on the RP418 and RP818
are sized for 1/4-in. (6mm) OD polyethylene tubing. The con-
nections are sharp, barb-type connections. See Fig. 6 and 7.
Wiring connections on the RP418A and RP818A are made via
splices inside the splice box. Knockouts are provided on the
box. For ambient temperatures between 100 to 120°F (38 to
49°C) either use 75°C rated wire or attach a close-coupled
4 x 4 electrical box to the RP418A or RP818A splice box.
Make the wire splices within the electrical box.
Wire leads provide a means of connection on the RP418B
and RP818B. Use standard wire nut connectors, obtained
locally, when making these connections.
NOTE: A cord and plug are provided for wiring connections
on the RP418C.
The RP418 and RP818 relays require no adjustment or
calibration.
Fig. 4. RP418 or RP818 relays mounted directly to a
PP901B pressure regulator using the 14003638-001
adaptor kit.
Fig. 5. RP418 or RP818 relays mounted directly to a PP902
pressure regulator using the 14003638-001 adaptor kit.
Fig. 6. RP418 and RP818 typical wiring and piping.
Fig. 7. Pneumatic schematic.
MP516A
BRACKET
RP418 OR RP818
M18372
M18373
RP418 OR RP818
BRACKET
VP519C
M18375
PP910B
BRACKET
RP418 OR RP818
PP920B
BRACKET
RP418 OR RP818
M18374
FAN
SWITCH
FAN MOTOR
DAMPER
EXHAUST
DAMPER
OPERATOR
RP418 OR
RP818
SUPPLY
AIR
VOLTAGE
SUPPLY
M18298
1
2
3
M18299
DEENERGIZED:
PORTS 2 AND
3 CONNECTED,
PORT 1 BLOCKED.
ENERGIZED:
PORTS 1 AND
3 CONNECTED,
PORT 2 BLOCKED.
3
1
2
2
3
1
