Install Instructions

95-7232EF.book Page 2 Thursday, February 27, 2003 9:22 AM
RP670A AND B PNEUMATIC SWITCHING RELAYS
Piping Port Identification Table
Fig. 4 shows adaptation piping. All connections are sharp Table 1 identifies the ports of Honeywell pneumatic
barb 5/32 in. (4 mm) O.D. polyethylene tubing. relays including older models when upgrading the
installation.
CAUTION
Equipment Damage Hazard.
To prevent damage to the sharp barb
connections, do not attempt to cut or pull tubing.
To remove tubing from the barb connections, cut
tubing a few inches from the control device. Use
a coupling to reconnect tubing.
NOTE: When the system is other than copper or poly-
ethylene tubing, adapt as shown in Fig. 4. Some
models provide parts for adapting.
5/32 IN. (4 MM) O.D.
PLASTIC TUBING
5/32 IN. (4 MM)
O.D. PLASTIC
TUBING CUT
TO LENGTH
5/32 IN. X 1/4 IN.
(4 MM X 6 MM)
O.D. PLASTIC
CONNECTOR
(CCTI606B)
C
ONNECT
1/4 IN.
1/4 IN. (6 MM)
(6 MM)
O.D. PLASTIC
COPPER
TUBING CUT TO
LENGTH
RP670A/B
POST FOR
CONNECT
1/4 IN.
(6 MM)
PLASTIC
1/4 IN. (4 MM) O.D
.
PLASTIC/COPPER
ADAPTER
(CCTI633BT)
1/4 IN. (6 MM) O.D.
COPPER TUBING
C8240
Fig. 4. Adaptation piping.
Table 1. Pneumatic Relay Ports.
RP670A
RP670B
RP412A
RP412B RO404 RO48A
Pilot 3 Pilot P 1
Common
7
a
Common 3 3
Normally
Connected
6
a
OFF 4 4
Normally
Disconnected
8
a
ON 2 2
a
On RP670B, one set of ports is gray and the other is
white. Each set is independent, but both switch at the
same time.
ENGINEERING DATA
Specifications
Models:
RP670A: SPDT switching relay; switching action occurs
between:
❑ 3 and 7 psi (21 and 48 kPa).
❑ 13 and 17 psi (90 and 117 kPa).
❑ 18 and 22 psi (124 and 152 kPa).
❑
20 and 25 psi (138 and 172 kPa).
RP670B: DPDT switching relay; Switching action occurs
between:
❑ 3 and 7 psi (21 and 48 kPa).
❑ 13 and 17 psi (90 and 117 kPa).
❑ 18 and 22 psi (124 and 152 kPa).
❑ 20 and 25 psi (138 and 172 kPa).
Operating Pressure (Switch and Pilot) Range:
Normal: 13 to 25 psi (90 to 172 kPa).
Maximum Safe: 30 psi (207 kPa).
Ambient Operating Limits:
Temperature: 20 to 140°F (-7 to 60°C).
Relative Humidity: 5 to 95%.
Air Handling Capacity: Pressure Drops: 0.039 scfm
(18.3 ml/s) and 1 psi (7 kPa).
Construction: molded plastic with neoprene
diaphragms, stainless steel lever, steel spring.
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