Honeywell RP470A Instructions D'installation
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Honeywell RP470A Instructions D'installation

Honeywell RP470A Instructions D'installation

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DESCRIPTION
RP470A and B are three-port relays with the following
differences:
RP470A:
• Transmits the higher of two input signals.
• Selects the higher pressure with a sensitivity of .015
psi (1.03 kPa).
• Is used in sensor lines, such as LP914 or LP915
temperature sensors with a 1.25 to 2.50°F (0.68 to
1.3°C) accuracy, depending on sensor span.
• Has a gray body.
RP470B:
• Locks out one pressure signal when a second
pressure signal is higher.
• Functions as a repeater for signal isolation.
• Functions as a lower-of-two-pressures selector.
• Has a gray and black body.
Fig. 1 shows RP470A and B dimensions in inches
(millimeters.)
1-1/2
(38)
Fig. 1. RP470A and B dimensions.
® U.S. Registered Trademark
Copyright © 2002 Honeywell • All Rights Reserved
Pneumatic Selector Relays
3
5
2
1
(25)
C3211
RP470A and B
INSTALLATION INSTRUCTIONS
BEFORE INSTALLATION
In a lower-of-two-pressures application, the RP470B
requires a 0.007 Filter Restrictor 14002913-002 if the
input is not already restricted (a one-pipe device input.)
INSTALLATION
Mounting
Suspend on tubing or mount on a surface. See Fig. 2. for
surface mounting.
WALL OR
PANEL
Fig. 2. Typical surface mounting.
Piping
Fig. 3 shows adaptation piping. All connections are sharp
barb 5/32 in. (4 mm) O.D. polyethylene tubing.
CAUTION
To prevent damage to the sharp barb
connections, do not attempt to cut or pull the
tubing. To remove tubing from barb
connections, cut tubing a few inches from the
control device. Use a coupling to reconnect
tubing.
NO. 10 X 1/2 IN.
SHEET METAL SCREW
(OBTAIN LOCALLY)
RELAY
MOUNTING CLIP
(PROVIDED)
C3214-1
95-7231EF

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  • Page 1 Pneumatic Selector Relays INSTALLATION INSTRUCTIONS DESCRIPTION BEFORE INSTALLATION RP470A and B are three-port relays with the following In a lower-of-two-pressures application, the RP470B differences: requires a 0.007 Filter Restrictor 14002913-002 if the input is not already restricted (a one-pipe device input.)

  • Page 2: Engineering Data

    Temperature: 0 to 140°F (-18 to 60°C) Port Identification Tables Relative Humidity: 5 to 95% The following tables identify ports of older Honeywell Air Handling Capacity: 0.039 scfm at 1 psi (18 ml/s at pneumatic relays when upgrading installation. Refer to 7 kPa) differential Tables 1 and 2.

  • Page 3: Applications

    0.007 restrictors (0.15 psi [1.03 kPa]). Fig. 6 shows a typical application using three zone thermostats and two RP470A for control. Each zone is controlled by a separate thermostat. The thermostat that calls for the most cooling (transmits the highest...
  • Page 4 RP470A AND B PNEUMATIC SELECTOR RELAYS Port 5 blocks Port 3 until the signal at Port 2 builds up a Fig. 10 shows the RP470B piped for the lowest-of-two- matching pressure, thus maintaining Port 3 equal to Port pressures selection with a capacity-type device input.

  • Page 5: Montage

    Tous les raccords sont effectués avec des tuyaux à crans en polyéthylène de 4 mm (5/32 po) de diam. ext. (25) (38) 1-1/2 CF3211 Fig. 1. Encombrement des RP470A et B. ® Marque de commerce déposée aux É.-U. Copyright © 2002 Honeywell • Tous droits réservés 95-7231EF...

  • Page 6: Vérification Et Essai

    Caractéristiques /CUIVRE DE 4 MM (1/4 PO) DIAM. EXT. (CCT1633BT) Modèles : RP470A : Relais de commande par la plus élevée de deux pressions CANALISATION RP470B : Relais de blocage ou répéteur EN CUIVRE DE 6 MM (1/4 PO) Gamme de pression de service DIAM.
  • Page 7 La Fig. 6 montre une application type avec des thermostats à trois zones et deux relais de commande SORTIE SECONDAIRE RP470A. Chaque zone est commandée par un thermostat distinct. Le thermostat exigeant le plus de refroidissement (qui transmet la pression la plus élevée dans la canalisation secondaire) commande la vanne de refroidissement par l'intermédiaire de l'un ou des deux...
  • Page 8 By using this Honeywell literature, you agree that Honeywell will have no liability for any damages arising out of your use or modification to, the literature. You will defend and indemnify Honeywell, its affiliates and subsidiaries, from and against any liability, cost, or damages, including attorneys’...

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