Install Instructions

RP471A PNEUMATIC SNAP-ACTING RELAY
RP471A
VENT
7
3
B
COMMON
PILOT
VENT
6
8
NORMALLY
CONNECTED
NORMALLY
DISCONNECTED
SPRING
SETPOINT
8
7
6
3
C8246
Fig. 6. RP471A operation.
Application
The RP471A can stop, divert or bleed pneumatic air lines
when pilot pressure is changed from one specific value to
another. It can change the air flow in one or two
pneumatic circuits with one pilot pressure change. See
Fig. 7.
R.A. OUTDOOR
AIR CHANGEOVER
THERMOSTAT
D.A MIXED AIR
THERMOSTAT
MINIMUM
OUTDOOR AIR
POSITION
DAMPER
M
VENT
SWITCH
ACTUATOR
3
6
7
8
M
41
2
M
C8247
Fig. 7. Typical system using RP471 to switch control
of an outdoor air damper from a mixed air state to
minimum position when outdoor air exceeds a given
temperature.
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Printed in U.S.A. on recycled
95-7252EF J.H. Rev. 2-02 customer.honeywell.com
paper containing at least 10%
post-consumer paper fibers.